Students: İbrahim KARATAŞ, Tarık Buğra KARAASLAN, Aleyna TUNCEL, Alper TARHAN
Advisor Information: Assoc.Prof.Dr. İpek YALÇIN ENİŞ, Assoc.Prof.Dr. Hande SEZGİN

SUMMARY

This thesis aims to produce thermal and acoustic insulation panels from textile waste with sustainable and innovative methods. By analyzing the properties of textile waste, the study focused on developing thermal insulation panels to increase energy efficiency and reduce heat loss in buildings, as well as acoustic panels to control sound levels and improve acoustic conditions in various environments.  The materials used in the study are cotton denim and polyester label waste. These materials were first opened into fibers and combed, then layered sandwich structures were formed and turned into panels using the hot press technique. The research analyzed the physical properties of these panels, as well as their air permeability, thermal and acoustic properties. The study aims to increase environmental awareness in waste management and product development processes and contribute to circular economy principles by providing a comprehensive understanding of the evaluation of textile waste as insulation material.

Students: Ezgi KADEMOĞLU, Akanya Ilgaz ÇELİK, Firdevs Aybala BEYAZ
Advisor Information: Prof. Dr. Selin Hanife ERYÜRÜK

SUMMARY

This study highlights the importance of technological innovations and solutions that improve customer experience in order to maintain and increase the competitive advantage of physical stores in the retail industry. It has been stated that innovations such as smart store technologies and inventory management are recommended to increase the attractiveness of physical stores. Additionally, customers' product-oriented and experience-oriented shopping motivations and their attitudes towards mobile shopping were examined. The study discusses the impact of store atmosphere on customer purchasing behavior. This subject has been examined in detail through various academic studies, research and theses. As a result, the importance of developing strategies to increase customer satisfaction and store performance in the retail industry is emphasized. This reflects the need to be aware of the evolving nature of consumers' preferences and for retailers to adapt to maintain a competitive advantage in the marketplace. 

Students: Ecesu ARSLANBAY, Mehmet Furkan GÜL, Melike Nesil ŞEN, Rana ERKEKOĞLU
Advisor Information: Assoc. Prof. Dr. Umut Kıvanç ŞAHİN

SUMMARY
Silk fabrics are preferred for scarves because of their luxurious feel and several situational benefits, however varied weaving types might have a negative impact on hand feel. To identify and avoid these undesirable side effects, it is vital to understand the components that influence hand feel. Literature research has identified numerous factors affecting the hand feel, and these factors were further investigated by conducting various tests on samples with different weaving types. According to the test results, fabrics with twill weave showed better handle characteristics compared to those with plain weave. 

Students: Berra Yaren AVCU, Nilüfer ZOHORİ, Çağatay GİDER
Advisor Information: Assoc. Prof. Dr. Umut Kıvanç ŞAHİN

SUMMARY
Nowadays, there are many chemical processes applied to textile products. The most common of these are printing and finishing processes. While the dyeing and printing processes applied to silk shawls add visual richness to the fabric, they also cause changes in the touch properties. Likewise, the finishing processes applied to obtain the desired final feature can add considerable variability to the texture and physical properties of the fabric. While one of the most important factors affecting the touch is printing and dyeing processes, it is also inevitable to examine the fabric contents. Textile tests for many properties, finishing treatments applied to silk fabric types to determine their effects on touch, and investigating their effects on touch will play an important role in obtaining touch value.

Students: Mert TÜRK, Cenk ŞENGÜL, Tuğçe DALAK 
Advisor Information: Assos. Prof. Dr. Umut Kıvanç ŞAHİN

SUMMARY

This thesis, entitled "Development of Multifunctional Denim Fabrics," embarks on an in-depth exploration and comparative analysis of the unique characteristics and performance metrics of denim fabrics, utilizing a blend of conventional cotton, Giza cotton, and elastane. The research meticulously evaluates the mechanical and physical properties of Giza cotton in juxtaposition with traditional cotton, specifically within the context of denim fabric. Furthermore, it delves into the implications of integrating elastane, examining its impact on the comfort and flexibility attributes of denim. This scholarly endeavor aims to augment the field of textile engineering by presenting comprehensive, data-backed insights, with a keen focus on advancing sustainable practices, enhancing fabric quality, and meeting evolving consumer demands in the textile industry. 

Students: Berkay AYDEMİR , Gökçe Tuğçe TELÖREN, Murat TURASAN
Advisor Information: Assist.Prof.Dr. Pelin ALTAY, Res.Assis.Dr. İlkay Özsev YÜKSEK

SUMMARY
Sustainability is very important as it protects natural resources, reduces negative environmental impacts and ensures that future generations can live on a livable planet.Sustainability in the textile industry aims to reduce the sector's negative impacts on theenvironment by controlling variables such as water use, chemical use and wastemanagement. This, on the one hand, preserves the ecological balance and, on theother hand, contributes to public health. Banana fibers are natural fibers obtained fromthe stems of the banana plant. It is used in the textile industry due to its properties suchas durability, flexibility and lightness. It also contributes to sustainability because it isobtained through recycling from waste and is a biodegradable material.This study investigates the use of banana fibers in along with epoxy matrix for potentialuse in low frequency sound absorption applications. The sound absorptionperformance of banana fiber-based composites were investigated. Additionally, tensile,flexural and drop impact performance of the composites were also analyzed.

Students: Halise KAYALARLI, Vahap TOĞAL
Advisor Information: Prof. Dr. Hale KARAKAŞ

SUMMARY
This thesis investigates the application of regenerative agriculture principles to the textile industry, aiming to enhance sustainability and reduce environmental impact. The primary objective is to explore how these agricultural practices can be integrated into the textile production chain to promote soil health, increase biodiversity, and decrease carbon footprint.

To achieve this, we conducted a comprehensive literature review, followed by field studies and experiments to assess the feasibility and benefits of regenerative practices. The methodologies included soil testing, crop rotation experiments, and the use of organic fertilizers. Our findings suggest that regenerative agriculture not only improves soil quality and ecosystem health but also offers economic benefits through increased crop yields and reduced dependency on synthetic inputs.

The results of this study provide a framework for textile companies to adopt more sustainable practices, contributing to the overall goal of environmental conservation. This thesis will be particularly relevant to professionals and researchers in the fields of agriculture, environmental science, and textile engineering who are interested in sustainable development and eco-friendly production methods.

Students: Sena Nur EMER, Elif Sema AVŞAR
Advisor Information: Prof. Dr. Nazan OKUR, Prof. Dr. Canan SARIÇAM

SUMMARY
The study focuses on developing a comprehensive model to analyze and comprehend sustainable consumption behaviour within social marketing. The research addresses the intricate interplay between individuals' consumption patterns and the societal context, emphasizing the importance of sustainable practices. By integrating key elements of social marketing, the model seeks to elucidate the factors influencing consumers' decisions towards sustainable choices, considering social and environmental considerations. This interdisciplinary approach strives to enhance our understanding of the dynamics shaping sustainable consumption behaviour, providing valuable insights for the development of effective social marketing strategies geared towards fostering a more environmentally and socially conscious consumer base. 

Students: Ebru İNCİLER, Asya ÇEKEM, Ayşe YILDIZ
Advisor Information: Prof. Dr. Nazan OKUR, Prof. Dr. Canan SARIÇAM

SUMMARY
Plied textile structures made of high-performance para-aramid fibers are preferred for ballistic applications due to their impact resistance and lightness. Additionally, impregnating these textile structures with shear-thickening fluids enhances impact resistance by increasing friction between the yarns. Therefore, the aim of this study is to design fabric composite structures with improved impact resistance by impregnating them with shear-thickening fluids.

In the design developed within the scope of the study, two different solutions containing 20% and 30% silica and PEG were applied to single, double, and four-plied Kevlar 200 and 400 fabric composite structures. Following this application, drop impact tests were conducted at 100 J and 200 J impact energies.

It was found that as the STF ratio increased in the composite structures, the amount of silica on the fabric also increased, and STF application generally enhanced impact resistance. Additionally, the type of fabric selected was found to be effective in improving fabric strength performance. Specifically, a significant performance increase was observed in single and double-ply Kevlar 200 fabrics, while the properties of Kevlar 400 fabrics showed a higher increase in impact resistance in four-ply fabric structures.

Students: İrem Sude ÖZEN, Arzu TATAR
Advisor Information: Prof. Dr. Nazan OKUR, Prof. Dr. Canan SARIÇAM

SUMMARY

Noise pollution is one of the most important environmental problems of today and negatively affects human comfort and health in daily life and working environments. High sound levels can lead to various health problems such as hearing loss, stress, lack of concentration and sleep disorders. Therefore, it is of great importance to control the noise generated in buildings, production facilities, vehicles, equipment and household items.

This study aims to develop environmentally friendly sandwich composite materials with high acoustic performance in a wide frequency range with an innovative production method to control noise pollution. These composite materials to be developed will significantly reduce the noise level in buildings, vehicles and household items.

Students: Aspurçe KARABULUT, Dilşad YANAR, Öykü EROĞLU, Yaren CANGÜL
Advisor Information: Prof. Dr. Nazan OKUR, Prof. Dr. Canan SARIÇAM

SUMMARY 
This thesis explores the design and development of sustainable acoustic panels utilizing natural fibers and waste materials, aimed at enhancing sound insulation and absorption while addressing environmental sustainability. The study investigates the acoustic properties of natural fibers such as cotton, wool, bamboo, and hemp, and integrates waste materials like recycled denim to create eco-friendly composite panels. These panels are bonded using biodegradable binders, including polyvinyl alcohol (PVA) and beta-cyclodextrin (β-CD), to form rigid structures suitable for various acoustic applications. 

Our research involves extensive material characterization, including the measurement of sound absorption coefficients and transmission loss, using standardized tests like the impedance tube method. The experimental results demonstrate that these natural fiber composites exhibit significant sound absorption capabilities, particularly in the mid to high-frequency range. Additionally, the use of waste materials contributes to resource conservation and environmental impact reduction, making these panels a viable alternative to conventional synthetic acoustic materials.

The findings of this study highlight the potential of natural fibers and recycled materials in acoustic panel applications, offering a sustainable solution for noise control in building interiors, automotive components, and industrial environments. By combining engineering principles with sustainable practices, this research provides a comprehensive approach to developing high-performance, environmentally friendly acoustic panels. 

Students: Aigerim YERBOLGANOVA, Zaid JDAYEH, İbrahim FOSTOK
Advisor Information: Prof. Dr. Nazan OKUR, Prof. Dr. Canan SARIÇAM

SUMMARY 
This senior design thesis investigates the development of a consumer behavior model for analyzing modern visual merchandising tools in mobile retailing. The project aims to address the competitive landscape of mobile apparel shopping applications by integrating traditional and modern visual merchandising tools. The study focuses on designing a consumer behavior model for defining components that influence consumer behavior, particularly in light of emerging technologies such as virtual fitting rooms and augmented reality applications. 

The methodology includes literature survey, consumer surveys, and statistical analyses using tools like Microsoft Excel and SPSS. The research is significant for its potential to offer valuable insights into consumer behavior in mobile retail, assisting companies in making informed decisions for a more engaging and profitable shopping experience. 

Studdents: Fehmi CENGIZ, Mohammad Noureddin AWAD, Sabriye YETGIN
Advisor Information: Assoc.Prof.Dr. Alper GÜRARSLAN

SUMMARY
This study represents the first-time investigation into the insulation properties of a non-woven fabric incorporating poplar fiber, aimed at expanding the understanding and application of sustainable materials in insulation technology. Utilizing a blend of hollow polyethylene terephthalate (PET) fibers and naturally derived poplar fibers, the research focuses on developing an eco-friendly, high-performance insulating material that combines the thermal and acoustic insulation benefits of both fiber types.

Studdents: Kadir ÇAĞIL, Mustafa SAMUR, Evar KAYA, Yağmur YILDIRIM
Advisor Information: Doç. Dr. Alper GÜRARSLAN

SUMMARY
This project is focused on creating a novel wound dressing using sodium alginate and incorporating advanced techniques like wet-spinning and wet-laying. The objective is to enhance healing by ensuring optimal air permeability and moisture balance, vital for wound recovery. Alginate, recognized for its exudate absorption and biocompatibility, forms the core of the dressing. It aims to facilitate cell migration and create a conducive healing environment. The project aligns with current medical advancements, seeking to improve upon existing wound care solutions by introducing a dressing that not only protects wounds but also actively supports their healing. Thorough examination of the physical characteristics of the developed dressings is conducted to confirm their effectiveness and medical suitability. For this project, Optimal parameters for wet-laying are determined by adjusting fiber dispersion, fiber length, and fiber diameter.

Studdents: Aylin KAYA, Eda GÜNDOĞAR, Emine MUTLU, Enes Talha AKÇAY
Advisor Information: Doç. Dr. Alper GÜRARSLAN

SUMMARY
They are multifunctional materials that have a positive effect on the healing process of wounds, in addition to modern wound dressings used to cover open wounds.  Alginate is frequently used in medical textiles, especially as wound dressings, as it provides biocompatibility with the skin and has a positive effect on wound healing. The aim of this study is to shorten the wound healing time and improve the antibacterial properties of the wound dressing by taking advantage of the advantages provided by alginate to be used in the development of an active wound dressing. For this purpose, porous alginate wet-laid nonwoven surfaces were used. Silver coated alginate wound cloths were produced by using wet-laying fibers produced by wet spinning to obtain the desired structure. The obtained nonwoven surfaces were coated with silver nanowire (AgNW) by drop casting method. It was developed by giving antibacterial properties to alginate films thanks to AgNWs. Non-toxic and biocompatible silver-coated alginate nonwoven surfaces will provide a moist environment thanks to their moisture retention. Its porous structure will increase the contact of the open wound with oxygen and will also accelerate cell regeneration by facilitating the movement of skin cells. Thus, an active antibacterial alginate film produced with simple production methods and aimed to shorten the wound healing time will be developed.

Students: Ahmet Furkan YILANCI, Ahmet ÇÖKLÜ, Kemal DEMİR, Merve ÇELİK
Advisor Information: Assoc. Prof. Dr. Umut Kıvanç ŞAHİN

SUMMARY 

This study examines the use of recycled cotton in order to reduce the environmental impacts of cotton and compares the properties of yarns obtained from conventional cotton and recycled cotton, such as evenness and strength, and the properties of fabrics produced from these yarns, such as color fastness, light fastness, washing fastness and dimensional stability. Additionally, the main goal of the project is to produce new yarns by adding added value to recycled cotton. 

Studdents:  İrem ŞİMŞEK, Zeynep Büşra İMAM
Advisor Information: Prof. Dr. Burçak KARAGÜZEL KAYAOĞLU, Dr.Öğr.Üy. Özlem İpek KALAOĞLU ALTAN

SUMMARY
This thesis explores the development and evaluation of a controlled drug release system utilizing silica-based xerogels. Two drugs with distinct solubility characteristics, MFM and Melatonin, were selected for this study to be encapsulated within the xerogel matrix. The xerogels were then incorporated into nanofibers fabricated using a polyvinyl alcohol (PVA) solution through the electrospinning process. The primary objective of this research is to demonstrate the ability of silica xerogels to modulate and slow down the release profiles of these drugs, thereby providing an effective means of controlled drug release. 

The study begins with the synthesis and characterization of silica xerogels, focusing on their structural and surface properties, which are crucial for drug loading and release. The encapsulation efficiency and loading capacity of MFM and Melatonin within the xerogels were evaluated. Following this, the drug-loaded xerogels were blended with PVA solution to produce nanofibers via electrospinning, creating a composite material that combines the benefits of xerogels and nanofibers for drug release applications. 

In vitro release studies were conducted to investigate the release kinetics of both drugs from the nanofiber composites. The results indicated that the silica xerogels effectively prolonged the release of MFM and Melatonin, with distinct release profiles corresponding to the solubility characteristics of each drug. This prolonged release was attributed to the controlled diffusion through the porous structure of the xerogel and the nanofiber matrix. 

The findings of this research demonstrate that silica-based xerogels, when integrated into PVA nanofibers, offer a promising approach for the controlled and sustained release of drugs with varying solubility, paving the way for future advancements in drug release systems.

This thesis provides a comprehensive analysis of the design, fabrication, and evaluation of a novel drug delivery platform, highlighting its potential to enhance therapeutic efficacy and patient compliance through controlled drug release. 

Keywords: Topical drug release systems, nanofibers, aerogel, electrospinning

Studdents:  Aslı OKUDAN, Burat BATU
Advisor Information: Prof. Dr. Fatma Banu NERGİS, Prof. Dr. Cevza CANDAN
SUMMARY
The textile industry is undergoing a significant shift towards sustainable practices. The design project explored the impact of the 'Ecodesign for Sustainable Products Regulation' (ESPR) on sustainable textile manufacturing. Studies of the project started by examining the context in which ESPR operates, outlining the research objectives and the scope of the study. An extensive literature review highlighted the importance of ESPR. Influence of the Regulation, covering the methodological aspects, was investigated and a framework for integrating ESPR was developed. The analysis addressed the technological requirements, compliance challenges, and cost management associated with ESPR integration. A a comprehensive assessment of the feasibility and practicality of ESPR integration was provided. 

Studdents: Berfin KÖRÜKÇÜ, Emre DOĞAN, Şafak Boran HİSARKAYA  
Advisor Information: Prof. Dr. Burçak KARAGÜZEL KAYAOĞLU, Doç. Dr. Sena CİMİLLİ DURU

SUMMARY
The project proposes the introduction of hemp fibers into the baby industry as a solution to their impact on both health and the environment. The main purpose of this project is to investigate the design and performance properties of sustainable and natural hemp and hemp blended knitted fabric instead of the conventionally used polyester fiber in baby strollers. At the same time, it aims to bring a new perspective to the sector by testing the knitted structure of baby stroller fabrics.

The project content is organized into sections that include problem analysis, objectives, design approach, and material methodology. The literature review covers aspects such as the properties of hemp fibers, their role in promoting sustainability, and their applications in the baby industry. A market study was also conducted to evaluate the advantages and suitability of hemp-based fabrics for use in the baby industry. 72% of respondents said they would prefer to purchase hemp-based strollers, indicating strong demand for environmentally friendly options.

The proposed project aims to meet the growing demand for environmentally friendly products in the baby industry. By reducing dependence on petroleum-based materials and encouraging the use of natural fibers, the project aims to contribute to the provision of environmentally friendly fabric options that take baby health into consideration. It also shows how hemp-based fabrics can be used effectively in the baby industry, highlighting the importance of sustainability-focused design principles.

In our design project, we chose to prioritize the utilization of natural fibers instead of synthetic ones. Synthetic fibers have been associated with effects, on both our well-being and the environment within the baby industry. Our mission is to meet the growing demand for eco-friendly baby products by advocating for the use of more environmentally conscious materials. To accomplish this collaboration was with yarns produced from hemp fibers as an eco-friendly alternative focusing on crafting hemp-based fabrics for baby strollers. Our ultimate objective is to diminish reliance on materials while promoting the adoption of natural fibers.

Students: Murat MULA, Osman Mert KAYACIK, Rana Nur TEKBAŞ
Advisor Information: Assoc. Prof. Dr. Alper GÜRARSLAN

SUMMARY
For a long time, surgical gowns have been produced from petroleum-derived fibers. The fact that the fibers obtained from petroleum cannot be recycled and returned to nature poses an important problem in terms of sustainability. Unfortunately, while the situation is so dire, the widespread use of petroleum-based fibers in the textile industry continues. In this study, surgical gowns will be designed with natural milkweed elf and PLA/PBS fibers, which is a biodegradable polymer. The advantages of the sustainable, low-density and antibacterial properties of milkweed fibers and the biodegradable properties of PLA/PBS fibers will be exploited. The resulting design's performance characteristics are intended to be at least as good as petroleum-based surgical gowns. Thus, sustainable surgical gowns produced with simple production methods will be produced.

Öğrenciler: Hatice AKBAĞ, İzzet Furkan YILMAZ
Danışman Bilgisi: Prof. Dr. Hale KARAKAŞ

ÖZET
Bu çalışmada, Erateks şirketi bünyesinde bulunan dört farklı tekstil ürün kategorisi olan Takım Sporları, Performans Sporları, Moda Giyim ve Günlük Giyim kategorileri incelenmiştir.
Çalışmanın temel amacı, bu ürün kategorilerine ait karbon emisyon miktarlarını hem ürün kategorisi bazında hem de ürün bazında karşılaştırmak ve yorumlamaktır.
Çalışmada, ürünlerin karbon emisyonu ve Tier'lara (Tedarik Zincir Seviyelere) odaklanılmıştır. Karbon emisyon miktarlarının doğru bir şekilde analiz edilmesi için önerilerde bulunulmuştur. Bu öneriler, ürünlerin üretim sürecindeki çevresel etkilerin dikkate alınmasını ve karbon ayak izinin azaltılmasını hedeflemektedir.
Çalışmanın sonuçları, her bir ürün kategorisi için emisyon miktarlarının ve karbon ayak izinin ne kadar olduğunu göstermektedir. Ayrıca, ürün bazında karşılaştırmalar yapılarak, hangi ürünlerin daha sürdürülebilir olduğu ve çevresel etkiyi daha az olduğu belirlenmiştir.
Bu çalışma, şirketler bazında çevresel sürdürülebilirlik hedeflerine ulaşmasına yardımcı olacak bilgiler sunmayı amaçlamaktadır.

Students: Elif Berra AKTAŞ, Akile Didar ARSLAN, Aliaa BOSTANI EID
Advisor Information: Assoc. Prof. Dr. İpek YALÇIN ENİŞ, Lecturer Dr. Hande Sezgin

SUMMARY
The importance of conserving heat energy in buildings and increasing noise pollution in modern life increase the need for insulation materials day by day. Recycled materials are frequently preferred for acoustic and thermal insulation materials with their environmentalist approach. Thanks to the conversion of these materials into value-added products, textile wastes are managed and at the same time, their negative effects on the environment are eliminated. This study covers the evaluation of recycled woven label edge waste with 100% polyester fiber content in insulation materials. Label wastes, which were mechanically separated into fibers in the scope of the thesis, were brought to the form of nonwoven panels by carding and needling method. The acoustic, air permeability and thermal properties of the panels with different weight and thickness values were tested and their application areas were determined. Evaluation results of the sample panels showed that the thickest board showed superior performance in terms of acoustic insulation, the thinnest board showed thermal efficiency and air permeability properties, as a result of the tests performed by comparing the thick sample, thin and medium samples by the evaluation of three different samples.

Students: Özlem GÖKMEN, Erkan ŞENER
Advisor Information: Assoc. Prof. Dr. İpek YALÇIN ENİŞ, Lecturer Dr. Hande Sezgin

SUMMARY
In this study, it is aimed to produce high-quality paper by reusing cellulosic fibers and waste paper. Cellulosic fibers such as cotton, flax and hemp were used in the study. Cellulosic fibers and waste paper were mixed with bio-based binders and passed through various processes to produce paper. The main purpose of this study is to examine the effects of fibers and different amounts of binders on the produced paper properties and to optimize these parameters for high quality paper production. In addition, the effect of the mixing ratios of the cellulosic fibers used on the paper quality was also investigated. The obtained findings proved that high tensile strength values were obtained in sample groups containing cotton fiber. When the water absorption test results were evaluated, it was concluded that the samples containing 75% of flax and hemp fibers with a high amorphous region and the samples using 500 ml of size among the papers containing different amounts of size had a high percentage of water absorption. This study aims to reduce the need for pure raw materials by improving the performance properties of recycled papers with the addition of cellulosic waste fibers. Thus, it aims to offer an alternative source of raw materials for paper production, replacing the tons of trees grown each year. In addition, it is thought that it will contribute to solid waste management, thanks to the evaluation of cellulosic textile waste fibers in paper production. It is envisaged that the papers produced within the scope of this thesis, which is a pioneer in the literature and has an original work quality, will be used in artistic fields such as watercolor and calligraphy.

Öğrenciler: Emre Hayri MAYRUK, Zeynep Sultan AKPINAR
Danışman Bilgisi:  Doç. Dr. İpek YALÇIN ENİŞ, Öğr. Gör. Dr. Hande Sezgin

ÖZET
Son yıllarda uygun donör arayışı, donör yetersizliği sorunları ve donör bekleyen insan sayısındaki artış, bilim insanlarını doku mühendisliği çalışmalarını geliştirmeye yönlendirmiştir. Bu noktada, yeterli yapısal, mekanik ve biolojik özelliklere sahip biyobozunur yapılar, bahsi geçen sorunlara alternatif çözüm sunabilecek potansiyele sahiptir. Bu tez kapsamında PLA, PCL ve PLCL gibi çeşitli biyobozunur polimerler tek tek ve belirli karaışım oranlarında asetik asit, kloroform ve etanol içeren çözücü sistemi içersinde çözülmüş ve elektro-eğirme tekniğiyle kullanılarak çeşitli yüzeyler üretilmiştir. Polimer konsantrasyonu ve üretim parametreleri optimize edilmiş, kopolimer ve polimer karışım oranı etkisinin yüzey morfolojisi üzerindeki etkisi incelenmiştir. Elde edilen yüzeylerin doku mühendisliği uygulamaları için ümit vadeden adaylar olması öngörülmektedir.

 

Students: Ayada Umut ÇINGAY, Kardelen PEKGÖZ
Advisor Information: Assoc. Prof. Dr. İpek YALÇIN ENİŞ, Lecturer Dr. Hande Sezgin

SUMMARY
Within the scope of the thesis, it is aimed to bring disposable pantyhose which can be regained as a textile product, has been added value and brought back to life as an isolation panel. In the experimental studies of the thesis, the waste pantyhose was opened into fibers and then converted into the nonwoven web by using the needle-punching method. It was aimed to test the usability of these structures in heat and sound insulation by changing several structural parameters. Results indicate that polyamide wastes, which are favored for their superior properties among thermoplastic polymers and high economic value, are brought back into the economy as producing developed material with sufficient level of thermal and acoustic properties.

Students: Sara NEGIZADE, Mohammad Noureddin AWAD, Abdurrahman Talha ŞENEL
Advisor Information: Prof. Dr. Burçak KARAGÜZEL KAYAOĞLU

SUMMARY
While the whole world is facing the waste problem, innovative solutions are sought especially in the textile sector. Baby diapers occupy an important place in the waste problem. It is known that non-biodegradable materials are used in the production of diapers. While recycling these diapers is an option, attempting to separate and recycle diapers containing feces is not an efficient and sustainable solution.

In addition, some baby diapers offered as biodegradable are known for their low absorbency. In addition, washable diapers cause excessive water consumption on the one hand, while making the life of parents difficult with their low absorbency.

For these reasons, the production of an environmentally friendly design with high absorbency, which can be an alternative to the baby diapers in the market, is a subject that draws attention.

Although completely biodegradable diapers seem like the best option in theory, they are not preferred by parents in terms of use.

This graduation project will work on two important layers of diapers. The first is the acquisition distribution layer (ADL), which provides the most important function of a diaper. The second is the absorbent core layer where all the liquid is absorbed and collected. In particular, the development of these two layers with biodegradable materials will greatly reduce the harm of the diaper to the environment.

In addition, in this study, it is aimed to reduce the negative impact of the diaper on the nature by reducing the amount of SAP and using absorbents of natural origin instead.

In this research, 20 different designs were created to achieve the targeted aim. All of these designs were basically tested for absorbency time and absorbent capacity, and according to these test results, the 4th design was an acquisition distribution layer made of 100% PLA and an absorbent core layer consisting of 30% sodium polyacrylate 20% agar powder 50% wood pulp performed best. A result was obtained by comparing these test results with market diapers.

Keywords: environmentally-friendly, baby diaper, absorbency, polylactic acid, agar agar

Students: Elif AYTAŞ, Ayşe Nur DÜNDAR, Halil Sevban DANIŞMAN
Advisor Information: Prof. Dr. Nazan OKUR, Prof. Dr. Canan SARIÇAM

SUMMARY
The thesis titled "Designing a Model for Evaluating the Effect of Social Marketing Appeals on Promoting Sustainable Fashion Consumption" addresses the growing importance of sustainable fashion and the role of social marketing in promoting sustainable consumption.
The fashion industry's rapid production and changing trends have led to environmental and social concerns, highlighting the need for sustainable practices.
The study begins by examining sustainable fashion, including its definition, production methods, and the concept of sustainable fashion consumption. Key aspects such as buying sustainable products, embracing the concept of slow fashion, and considering second-hand items are explored to understand sustainable consumption patterns. Furthermore, the research delves into social marketing and its relevance to promoting sustainable fashion, discussing its definition, key features, and importance in driving behavioral change and influencing consumer choices. The study also explores social marketing appeals, including fear, guilt, and shame, as persuasive techniques to encourage sustainable fashion consumption.
To understand the impact of social marketing appeals on consumer behavior, the thesis incorporates social identity theory. This theory helps evaluate the influence of individual identification and group affiliation on sustainable fashion choices. By analyzing consumer attitudes, intentions, and behaviors related to sustainable fashion, the study aims to validate the effectiveness of social marketing appeals in promoting sustainable clothing purchases.
The methodology involves conducting an experimental study, model development, and comprehensive data analysis. The experimental study includes field research to gather relevant data on consumer attitudes towards sustainable fashion. Modeling techniques are then employed to develop a comprehensive model that encompasses factors affecting consumer behavior towards sustainable fashion.
The analysis section of the thesis comprises various methods, including explanatory factor analysis, confirmatory factor analysis, and path analysis. These methods are used to examine the collected data, analyze the relationships between different variables, and derive meaningful insights. The results highlight the factors influencing consumer behavior towards sustainable fashion and present the findings of the factor analysis and path analysis.
Overall, this research contributes to the existing knowledge on sustainable fashion and social marketing, shedding light on the factors that drive consumer behavior and preferences in sustainable fashion consumption. The findings provide valuable insights for developing effective strategies and campaigns to promote sustainable practices in the fashion industry, aiming to create a more ethical and sustainable future.

Students: Berna BEYHAN, Pelin ZİLELİ, Özge AKÇALI
Advisor Information: Prof. Dr. Nazan OKUR, Prof. Dr. Canan SARIÇAM

SUMMARY
Composite materials are one of the innovative engineering materials used in the textile industry. Hybrid composites formed by combining materials with different structures can be produced for various purposes. Ballistics is one of the areas where hybrid composite materials are used. Various reinforcement materials can be used for ballistic fabric production. Kevlar, carbon, and glass fibers are among these reinforcement materials. Shear thickening fluid is a kind of fluid that does not obey Newton's laws of viscosity. Use of STF for impact resistance is a new branch. Various researches are continuing in this field, which has developed considerably in recent years. The subject generally covers the effect of different yarn types on the impact resistance of hybrid composite structure in woven fabrics produced for impact resistance. In this novel design project, different perspectives are used to investigate the subject and the effect of woven fabrics reinforced with various materials is studied.

Students: Elvan BOZKIR, Meryem BALCI, Eda ŞİMŞEK
Advisor Information: Prof. Dr. Canan SARIÇAM, Prof. Dr. Nazan OKUR

SUMMARY
Denim is a traditional industry that offers denim products that appeal the consumers because of their high performance, comfort, and aesthetic features. Furthermore,denim production causes water contamination, and the final products cause waste after use. Because of these, the industry should sensitively approach sustainability. Thus, the denim industry focused on manufacturing more sustainable products with an emphasis on sustainability principles.

Along with the changing dynamics in the sustainable supply side, increasing debates about environmental problems and sustainable principles influenced consumer attitudes. Understanding the motivating factors for purchasing sustainable items and how awareness about sustainability affects consumer behavior is important for retailers. However, there is a limited number of studies that focus specifically on the impact of awareness about sustainability practices on the purchase intention of denim products.
Therefore, a model is proposed to understand if the awareness about sustainability has a triggering impact on purchasing intention. For this reason, the relevant literatüre was reviewed to find out the most popular models and the research gap in the literature.
A model combining the knowledge-attitude-behavior model and theory of perceived value is proposed to fulfill the research gaps. The primary framework was selected as knowledge-attitude-behavior model. In the proposed model the awareness about the sustaianbility practices is taken as the moderator. It is decided to investigate the impact of the moderator on the relationship between sustainable denim value perception, attitude, product related attributes and sustainable denim purchase intention.

Students: Ayşe Sena DAL, Arif Berk DEMİREZER, Emine Zeynep ŞİŞMAN
Advisor Information: Prof. Dr. Canan SARIÇAM, Prof. Dr. Nazan OKUR

SUMMARY
Nowadays, rapidly developing technology and VR applications have been critical in apparel retailers along with many sectors. Visual merchandising applications, one of the most effective marketing methods of retailing, also got their share from the development of technology. According to some studies, as a result of these developments, traditional visual merchandising components have started to transform into smart, virtual and innovative components to a large extent. In this context, the inclination of consumers to use these technologies and how those technologies affect their purchasing decisions has become an important research topic. In this study, using the Unified Theory of Acceptance and Use of Technology (UTAUT) and Stimulus-Organism-Response (S-O-R) framework, a model is proposed to analyze consumers' attitudes towards these new visual merchandising components and their effects on consumers' purchase intention. With this model, retailers can learn about the integration of such tools into their store environments and the possible consequences of this integration. In addition, the model and its components can be used by other researchers to provide further insight and as a basis for models to be developed.

 

Students: İbrahim IŞIK, Selime Gaye ATAY, Öykü GÖÇMEZ, Merve Nur YILMAZCAN
Advisor Information: Prof. Dr. Nazan OKUR, Prof. Dr. Canan SARIÇAM

SUMMARY
From past to present, mankind has sought protection against these weapons, while in search of advanced weapons. In this context, they tried to develop their own protective clothing against piercing, cutting and explosive hazards. The development of this protective clothing, which started using animal skins, was accelerated by the discovery of soft armor at the end of the 19th century and used by armies. However, while soft armors could provide protection against low-velocity bullets, they could not provide reliable protection against new generation weapons. With the Second World War, this development phase accelerated and flak jackets using nylon fibers were developed. However, these garments are quite heavy, impractical and do not have the expected effectiveness in ballistic applications. Studies have been intensified for the production of light and effective body armors, and in 1970 the bullet-proof vest, made of Kevlar, a para-aramid synthetic fiber, was put on the market by DuPont and attracted attention for ballistic applications. Layered structures, which were developed from high-density polyethylene fibers and later poly-p-phenylenebenzobisoxazole fibers in the 1980s and defined as composite structures, started to be used in ballistic protective clothing. New studies are increasing day by day to improve the weight problem in ballistic protective clothing, to increase resistance to penetration and to increase the level of energy absorption. For this purpose, protective clothing treated with shear thickening fluids is of interest. These fluids, which behave like solids and change their viscosity when faced with any force, are non-Newtonian fluids and can provide improved impact resistance with fewer layers. Within the scope of this project, the application of shear thickening fluid consisting of fumed silica and polyethylene glycol dispersion to para-aramid woven fabrics and its effect on impact absorption under low-velocity impact loads were investigated and it is aimed to show better ballistic impact resistance in fewer layers.

Students: Altan KAPTAN, Ayşegül BÜYÜKKIDIK, Aslı Nil OCAK
Advisor Information: Prof. Dr. Selin Hanife ERYÜRÜK

SUMMARY
Assembly lines are production systems that have been developed to meet the needs of humanity and are growing day by day. The aim of these systems is to produce cheap and demanded quality with high production rates in the most efficient way and in the shortest time. Since assembly line balancing optimization is a difficult problem, methods are needed for large-scale assembly line balancing problems. In this study, an assembly line balancing of a firefighter’s suit was made in Kıvanç Group company, which produces firefighter clothing. Definitions and solution methods related to assembly line balancing problems, production systems, work-time study studies and technical characteristics of firefighter's clothing are given, literature research is presented. The aim of the study is to determine all operations in a firefighter suit, calculate their standard times, and ensure maximum assembly line efficiency with the optimum machine and operator.

Students: Beste ÜNVER, Yaren SUNGUR
Advisor Information: Prof. Dr. Selin Hanife ERYÜRÜK

SUMMARY
The aim is to develop a product series with a medical fabric that can provide warmth and therapeutic benefits to individuals who are sensitive to cold or have circulationrelated issues. The design of the fabric should consider the users' needs for comfort, fit, and ease of use, as well as any specific medical requirements. The project includes research on materials and technologies that can effectively retain heat, in addition to testing and evaluation to ensure the effectiveness and safety of the final product.In this context, experimental studies have played an important role. A portion of the fabric has been infused with St. John's wort (kantaron). St. John's wort is known for its antiinflammatory and wound-healing properties and is recognized for its therapeutic benefits. The infusion of St. John's wort into the fabric aims to provide users with additional therapeutic features.As part of the experimental studies, various tests have been conducted on the fabrics. Heat tests (alambeta) have been performed to evaluate the fabric's ability to effectively retain heat. These tests aim to determine the thermal insulation properties of the fabric, with the goal of developing an ideal product for individuals sensitive to cold. Additionally, the breathability of the fabrics has been tested. These tests have been carried out to assess the fabric's ability to facilitate air circulation, taking factors such as user comfort and perspiration into account. The breathability of the fabric is crucial for providing breathability and comfort during use. Furthermore, the fabrics have been tested for water vapor permeability. Water vapor permeability refers to the fabric's ability to allow perspiration to evaporate. These tests have been conducted to assess moisture management and prevent users from experiencing discomfort due to perspiration. Water vapor permeability is important for creating a dry and comfortable environment during product use. The results of these experimental studies will help determine the effectiveness of the developed fabric in terms of design and functionality. The goal of the project is to develop a functional fabric that can provide relief and enhance the quality of life for individuals sensitive to cold or with circulation-related issues. The experimental data will play a significant role in achieving this objective during the design and production process.

Students: Deniz Servet ALTUN, Emir Nuri ÇİZMECİOĞLU
Advisor Information: Prof. Dr. Fatma Banu NERGİS, Prof. Dr. Cevza CANDAN, Assoc. Prof. Dr. Sena CİMİLLİ DURU

SUMMARY
In this study, effects of different yarn properties on the performance and comfort of protective gloves from HDPE, glass fiber, steel fiber, polyester and nylon yarns, and their blends were studied. According to the results obtained, a highly comfortable and cut/peel resistant protective glove was designed by the use of appropriate combination of material types and application of plasma treatment.

Students: Öykü ÖYE, Fatma Yaren GÜL, Alperen YAVUZ
Advisor Information: Prof. Dr. Cevza CANDAN, Prof. Dr. Fatma Banu NERGİS

SUMMARY

Today, we can see that Gen-Z is in a difficult position, not only because they live in a fast-fashion culture and tries to define themselves through their clothes, but also because of their high environmental sensitivity. Fast fashion is the most important fashion trend of our time because it allows for extremely fast production and consumption while harming the environment and causing the consumption of natural resources in production. Literature survey poinst out that the circular and sharing economies have been identified as the most important key points for sustainable fashion, and that various business models were discussed regarding how the two indispensable and nearly completely opposing trends of the Z generation could be combined at a common point. Accordingly, the concept of a "daily clothing rental platform" was proposed fort his study. Instead of owning clothes, renting them allows you to keep up with the latest fashion trends while also contributing to the circular economy by ensuring that the product is used by someone else when the rental period ends. Simultaneously, by using the product, it will be possible to define itself with style for a lower cost than if it is owned. Following the demonstration of the concept, the behaviors and thoughts of customers based on renting daily clothing were investigated through various sources, including market research on similar rental sites. Finally, a business model on Daily rental platform for Gen Z's expectations was proposed and its sustainability was discussed.

Students: Kübra KARATAY, Sinem AYDIN, Ayşen KAYALI
Advisor Information: Prof. Dr. Emel ÖNDER KARAOGLU
Supporting Organization / Project Information: -
Summary:
Today, the textile and clothing industry is in great competition for efficiency, sustainability and responding to the dynamic needs of customers accurately and quickly and faces significant sanctions at the global level. The linear structure of the sector has evolved into a cyclical operation, and a period in which serious steps are taken to reduce the negative impacts on the environment has entered. In this context, fashion retailers and big brands, as well as suppliers and manufacturers, carry out important projects and reorganize their ways of doing business, such as eliminating the use of synthetic fibers and hazardous chemicals as much as possible, reducing CO2 and water footprints, and improving waste management and recycling processes. . The current sustainability certificates and improved performance indexes are important tools that bring together manufacturers and retailers on a common platform around sustainability. All these elements were analyzed from a broad perspective in the project, and an interview was held with the Beymen Club R&D Center on sustainability studies. In addition, studies were carried out to develop models based on two multiple decision-making tools (AHP and DEMATEL) in order to objectively measure the sustainability performance of suppliers. For retailers, a positioning study was carried out on the basis of sustainability activities.

Students: Asya Ecem KIRKAYA, Emiş Sedef GÖV, Kaan ZIRHLIOĞLU
Advisor Information: Prof. Dr. Emel ÖNDER KARAOĞLU & Prof. Dr. Cevza CANDAN
Supporting Organization / Project Information: -
Summary:
This project is about developing actual strategies for how a fashion retailer located on an online shopping site in the form of a marketplace platform can increase its online sales by analyzing its dynamics and characteristics. For this purpose, the activities of a fashion brand that has just joined the marketplace platform were researched for category diversity, product contents, operational performance indicators and promotional plans. The analyzes are based on the six-month data of 2020 collected from Trendyol, an important market platform in Turkey, and Altınyıldız Classics, a Turkish Men's Fashion brand. In addition, the study was conducted under the COVID pandemic measures with limited access to academic and industrial research platforms. The results of the project can be useful and guiding for brands that are already on a marketplace platform and want to increase customer satisfaction, brand awareness and online sales.

Students: Khikmatillo MATKHOSHIMOV, Başak CİĞEROĞLU, Hilal ÖTÜRK
Advisor Information: Prof. Dr. Hale CANBAZ KARAKAS
Supporting Organization / Project Information:
Summary:
Today, the textile industry is the second most polluting industry after the oil industry. It is well known that only the textile finishing industry consumes billions of tons of water in a year. In addition, millions of people around the world do not have access to clean water. Many forward-thinking brands are looking for alternative ways to reduce their water and chemical consumption. There are two commercially available water-saving bleaching technologies today: laser and ozone. In this project, a design study was carried out on the use of ozone in denim washing. Ozone technology overcomes the characteristic fading abilities of ozone gas, providing an overall whitening effect with greatly reduced ecological impact. Ozone does not completely eliminate the use of water in denim finishing, but it significantly reduces water consumption as well as energy, chemicals, enzymes and stones. Ozone offers significant advantages over the traditional wet finishing method.

Students: Sevgi Aydanur CEYLAN, Gökçe SAKMAR
Advisor Information: Assist.Prof. İpek YALÇIN ENİŞ, Lecturer. Dr. Hande SEZGIN
Organization / Project Information: -
Summary:
Automobiles, which are indispensable in our daily life, have become a very popular end-use area, especially for composite materials. Considering the sustainability principles, natural fiber reinforced composites are frequently used in vehicles that provide fuel efficiency thanks to lighter constructions. In recent years, it has been seen that some automobile brands use panels that prevent simple accidents. These panels, which are used to prevent bending and scratches that may occur on the hood due to low-damage accidents and to give an aesthetic appearance, are especially used in the areas that are hit the most (side mirrors, door tops, rear, etc.). In this study, it was aimed to produce composite structures with high impact resistance suitable for use in the automotive industry by reinforcing epoxy resin and epoxy resin hybridized with acrylated and epoxidized soybean oil (AESO) with waste denim structures in both fabric and fiber form. Eight different designs, resin types and reinforcement material forms were produced by vacuum infusion method and their impact strength was measured with a falling weight impact resistance device. The results showed that composites with reinforcing material with fiber layer between 30% AESO added resin system and two layers of denim fabric had the best impact resistance.

Students: İrem SARI, Aleyna Rumeysa İRİ
Advisor Information: Assoc. Dr. Nazan OKUR & Assoc. Dr. Canan SARIÇAM
Supporting Organization / Project Information: -
Summary:
The Covid 19 pandemic has caused a global crisis that has affected the economy, lifestyles and behavior of consumers all over the world. A healthy lifestyle has become a top priority for consumers, and awareness of sustainability and the environment has increased significantly. Consumers have changed their shopping habits by reducing the level of contact. Parallel to these, production activities were suspended for a long time on the supply side and there was a great decrease in in-store sales on the marketing side. Although it is predicted that the effect of the pandemic will decrease over time and consumers will return to their pre-pandemic habits, it is expected that consumers' sensitivity towards sustainability will continue. Therefore, the reason for changes in consumer behavior must be properly understood. Understanding consumer behavior will enable retailers to develop the most effective marketing strategies, both for the present and for potential crises in the near future. The subject of this study is to design a model and analyze the influencing factors in order to determine the different factors related to the Covid 19 epidemic and environmental concerns regarding consumer behavior towards purchasing fashion products.

Students: Kunter BİLGE, Atilla SAYIN, Seda Ezgi DÜZGÜN
Advisor Information: Dr. Sena CİMİLLİ DURU, Prof. Dr. Cevza CANDAN, Lecturer Dr. Hande SEZGIN
Supporting Organization / Project Information:-
Summary:
In this study, different ratios of hemp, cotton and polypropylene fibers were passed through the comb and cheesecloth structures were formed and these structures were converted into thermoplastic composite materials by the hot press method. While hemp and cotton act as reinforcement materials in composite materials, polypropylene fiber is used as matrix material. Acoustic performance was measured by measuring the sound absorption coefficient and sound transmission loss of the structures obtained. It has been observed that the sound absorption and sound transmission loss properties of hemp reinforced composites are better than cotton reinforced composites.

Students: Kaan ERİŞ, Seza YILMAZERLER, Hande Nur KAMAN
Advisor Information: Prof. Dr. Bulent ÖZIPEK & Prof. Dr. Hale CANBAZ KARAKAS
Supporting Organization / Project Information:
Summary:
The acceleration in textile consumption caused by the movements of the fashion industry forces the apparel manufacturing industry to offer environmentally harmful temporary solutions to meet this demand. The main aim of this project is to design a sustainable system for the production of ready-made textile products. The project focuses on the processes of organic or recycled raw materials, certification, ecological footprints in the production of an apparel product to create a stable eco-friendly system that benefits the industry and society.

Students: Gamze KASIMOĞLU, Aybüke MERAL
Advisor Information: Lecturer Dr. Berdan KALAV & Assoc. Dr. İkilem GÖCEK
Supporting Organization / Project Information: -
Summary:
This project aimed to improve flame retardancy by applying flame retardant halogen-free Aluminum Trihydrate (ATH) and nanoclay to cotton tent fabric with ultraviolet (UV) curing method, which has gained importance in recent years. All designs are designed to provide flame retardancy in order to benefit from the synergy effects of the use of ATH and nanoclay together, and to obtain acceptable values from the limit oxygen index (LOI) test, which is used to measure ignition levels. 3 different coatings are designed; the designs were intended to be applied on canvas; It is aimed to apply the recipe containing UV cured polyurethane acrylate oligomer resin, ATH, nanoclay and two different photoinitiators (Omnirad 819 and Omnirad 500).

Students: Kübra KARATAY, Sinem AYDIN, Ayşen KAYALI
Advisor Information: Prof. Dr. Emel ÖNDER KARAOGLU
Supporting Organization / Project Information: -
Summary:
Today, the textile and clothing industry is in great competition for efficiency, sustainability and responding to the dynamic needs of customers accurately and quickly and faces significant sanctions at the global level. The linear structure of the sector has evolved into a cyclical operation, and a period in which serious steps are taken to reduce the negative impacts on the environment has entered. In this context, fashion retailers and big brands, as well as suppliers and manufacturers, carry out important projects and reorganize their ways of doing business, such as eliminating the use of synthetic fibers and hazardous chemicals as much as possible, reducing CO2 and water footprints, and improving waste management and recycling processes. . The current sustainability certificates and improved performance indexes are important tools that bring together manufacturers and retailers on a common platform around sustainability. All these elements were analyzed from a broad perspective in the project, and an interview was held with the Beymen Club R&D Center on sustainability studies. In addition, studies were carried out to develop models based on two multiple decision-making tools (AHP and DEMATEL) in order to objectively measure the sustainability performance of suppliers. For retailers, a positioning study was carried out on the basis of sustainability activities.

Students: Asya Ecem KIRKAYA, Emiş Sedef GÖV, Kaan ZIRHLIOĞLU
Advisor Information: Prof. Dr. Emel ÖNDER KARAOĞLU & Prof. Dr. Cevza CANDAN
Supporting Organization / Project Information: -
Summary:
This project is about developing actual strategies for how a fashion retailer located on an online shopping site in the form of a marketplace platform can increase its online sales by analyzing its dynamics and characteristics. For this purpose, the activities of a fashion brand that has just joined the marketplace platform were researched for category diversity, product contents, operational performance indicators and promotional plans. The analyzes are based on the six-month data of 2020 collected from Trendyol, an important market platform in Turkey, and Altınyıldız Classics, a Turkish Men's Fashion brand. In addition, the study was conducted under the COVID pandemic measures with limited access to academic and industrial research platforms. The results of the project can be useful and guiding for brands that are already on a marketplace platform and want to increase customer satisfaction, brand awareness and online sales.

Students: Khikmatillo MATKHOSHIMOV, Başak CİĞEROĞLU, Hilal ÖTÜRK
Advisor Information: Prof. Dr. Hale CANBAZ KARAKAS
Supporting Organization / Project Information:
Summary:
Today, the textile industry is the second most polluting industry after the oil industry. It is well known that only the textile finishing industry consumes billions of tons of water in a year. In addition, millions of people around the world do not have access to clean water. Many forward-thinking brands are looking for alternative ways to reduce their water and chemical consumption. There are two commercially available water-saving bleaching technologies today: laser and ozone. In this project, a design study was carried out on the use of ozone in denim washing. Ozone technology overcomes the characteristic fading abilities of ozone gas, providing an overall whitening effect with greatly reduced ecological impact. Ozone does not completely eliminate the use of water in denim finishing, but it significantly reduces water consumption as well as energy, chemicals, enzymes and stones. Ozone offers significant advantages over the traditional wet finishing method.

Students: Sevgi Aydanur CEYLAN, Gökçe SAKMAR
Advisor Information: Assist.Prof. İpek YALÇIN ENİŞ, Lecturer. Dr. Hande SEZGIN
Organization / Project Information: -
Summary:
Automobiles, which are indispensable in our daily life, have become a very popular end-use area, especially for composite materials. Considering the sustainability principles, natural fiber reinforced composites are frequently used in vehicles that provide fuel efficiency thanks to lighter constructions. In recent years, it has been seen that some automobile brands use panels that prevent simple accidents. These panels, which are used to prevent bending and scratches that may occur on the hood due to low-damage accidents and to give an aesthetic appearance, are especially used in the areas that are hit the most (side mirrors, door tops, rear, etc.). In this study, it was aimed to produce composite structures with high impact resistance suitable for use in the automotive industry by reinforcing epoxy resin and epoxy resin hybridized with acrylated and epoxidized soybean oil (AESO) with waste denim structures in both fabric and fiber form. Eight different designs, resin types and reinforcement material forms were produced by vacuum infusion method and their impact strength was measured with a falling weight impact resistance device. The results showed that composites with reinforcing material with fiber layer between 30% AESO added resin system and two layers of denim fabric had the best impact resistance.

Students: İrem SARI, Aleyna Rumeysa İRİ
Advisor Information: Assoc. Dr. Nazan OKUR & Assoc. Dr. Canan SARIÇAM
Supporting Organization / Project Information: -
Summary:
The Covid 19 pandemic has caused a global crisis that has affected the economy, lifestyles and behavior of consumers all over the world. A healthy lifestyle has become a top priority for consumers, and awareness of sustainability and the environment has increased significantly. Consumers have changed their shopping habits by reducing the level of contact. Parallel to these, production activities were suspended for a long time on the supply side and there was a great decrease in in-store sales on the marketing side. Although it is predicted that the effect of the pandemic will decrease over time and consumers will return to their pre-pandemic habits, it is expected that consumers' sensitivity towards sustainability will continue. Therefore, the reason for changes in consumer behavior must be properly understood. Understanding consumer behavior will enable retailers to develop the most effective marketing strategies, both for the present and for potential crises in the near future. The subject of this study is to design a model and analyze the influencing factors in order to determine the different factors related to the Covid 19 epidemic and environmental concerns regarding consumer behavior towards purchasing fashion products.

Students: Kunter BİLGE, Atilla SAYIN, Seda Ezgi DÜZGÜN
Advisor Information: Dr. Sena CİMİLLİ DURU, Prof. Dr. Cevza CANDAN, Lecturer Dr. Hande SEZGIN
Supporting Organization / Project Information:-
Summary:
In this study, different ratios of hemp, cotton and polypropylene fibers were passed through the comb and cheesecloth structures were formed and these structures were converted into thermoplastic composite materials by the hot press method. While hemp and cotton act as reinforcement materials in composite materials, polypropylene fiber is used as matrix material. Acoustic performance was measured by measuring the sound absorption coefficient and sound transmission loss of the structures obtained. It has been observed that the sound absorption and sound transmission loss properties of hemp reinforced composites are better than cotton reinforced composites.

Students: Kaan ERİŞ, Seza YILMAZERLER, Hande Nur KAMAN
Advisor Information: Prof. Dr. Bulent ÖZIPEK & Prof. Dr. Hale CANBAZ KARAKAS
Supporting Organization / Project Information:
Summary:
The acceleration in textile consumption caused by the movements of the fashion industry forces the apparel manufacturing industry to offer environmentally harmful temporary solutions to meet this demand. The main aim of this project is to design a sustainable system for the production of ready-made textile products. The project focuses on the processes of organic or recycled raw materials, certification, ecological footprints in the production of an apparel product to create a stable eco-friendly system that benefits the industry and society.

Students: Gamze KASIMOĞLU, Aybüke MERAL
Advisor Information: Lecturer Dr. Berdan KALAV & Assoc. Dr. İkilem GÖCEK
Supporting Organization / Project Information: -
Summary:
This project aimed to improve flame retardancy by applying flame retardant halogen-free Aluminum Trihydrate (ATH) and nanoclay to cotton tent fabric with ultraviolet (UV) curing method, which has gained importance in recent years. All designs are designed to provide flame retardancy in order to benefit from the synergy effects of the use of ATH and nanoclay together, and to obtain acceptable values from the limit oxygen index (LOI) test, which is used to measure ignition levels. 3 different coatings are designed; the designs were intended to be applied on canvas; It is aimed to apply the recipe containing UV cured polyurethane acrylate oligomer resin, ATH, nanoclay and two different photoinitiators (Omnirad 819 and Omnirad 500).

Students: Kübra HOROZ, Begüm DEMİRAL, Zeynep Melisa GÜLEN
Advisor Information: Prof. Dr. Selin Hanife ERYÜRÜK, Öğr. Gör. Dr. Belgin GÖRGÜN
Supporting Organization / Project Information: -

Summary:
In this Senior Design Project, it is aimed to design a strategy for the fashion industry by comparing the conventional fitting method with CAD programs and the virtual fitting method. Observations were made by going to a company that carried out these processes. After the article research and fitting observations were completed, questions were prepared for the modelists of the companies that both fitted with the traditional method and fitted in the virtual environment and used both methods in the design process, and a survey study was started. The survey was solved by standing next to them one-on-one and by contacting them via email.

 A general judgment was made by looking at the results of the survey and the results of our one-on-one interviews with some pattern-makers; a sewn sample and conventional fittings may not be needed when making basic clothing models such as shorts and t-shirts of fabrics, such as knitted fabrics, that will facilitate their fit due to their flexibility but when creating non-basic models such as jackets and shirts, a sewn sample and a traditional fitting will be needed.

 

Students: Başak ASLANPAY, Ezgi HIRCA, Hande BULUT, Perihan YILMAZ
Advisor Information: Prof. Dr. Gülay ÖZCAN, Prof. Dr. Selin Hanife ERYÜRÜK
Supporting Organization / Project Information: -
Summary:

Nowadays, environmental protection and sustainability efforts are increasing to reduce the damages to the environment especially considering denim production. This study aims to produce a natural and environmentally friendly denim production method. As a result of the literature survey results, we have selected some natural dyes, mordants and environmental friendly finishing methods. The raw materials was selected as Turkish organic cotton. The next step will be to obtain environmental friendly and blue colored denim and test their suitability using appropriate test standards. In the introduction part of our study, starting from the history of denim, the raw materials in the denim production, yarn production processes, rope dyeing method, weaving, finishing processes, apparel production, and wet and dry finishing processes are presented. Life cycle assessment of cotton growing, denim fabric production, and jean production are shown with numerical data in the content of our design project. In addition, the carbon footprint of denim production, nitrogen footprint, phosphorus footprint, water consumption, the damages of chemical dyes (sulfur, indigo), and the damages of metal mordants were evaluated with numerical data, and the damage to the environment and human beings were drawn attention. By focusing on the objective tree, it can be clearly observed that our work has been guided by natural dyeing, extraction methods of dye sources, and natural mordants. Within the conceptual design process, some tools were used to get intensive knowledge from the literature and use it to obtain our experimental design models. Comparison tables were made according to literature researches, and then pairwise comparison tables were scored according to certain constraints and aims. Afterwards 9 models were created. The 8 of those models were created by combining Turkish organic cotton and 2 organic dyes with using 3 different mordant and without using any mordant, and 1 enzyme washing. Another model which is indigo dyed fabric is added to the models to be used as reference fabric for comparing the test results. Finally, the definition and evaluation of the design selected as a result of the scoring were made and discussed.

Öğrenciler:  Beyza Nur ÖRSCÜ, Okan SÖNMEZ, Yılmazonur BAŞARER
Danışman Bilgisi: Prof. Dr. Cevza CANDAN, Prof. Dr. Banu UYGUN NERGİS
Destekleyen Kuruluş / Proje Bilgisi: -
Özet:
Son yıllarda üniversitelerin kendi logolarını taşıyan tekstil ürünlerini giymek gençler arasında oldukça popüler hale geldi. İstanbul Teknik Üniversitesi’nde bu popüler eğilim uzun süredir devam etmektedir. Bununla beraber, İTÜ’ nün bu ürünlerin üretimini düzenlemek için hâlihazırda kullandığı yöntemin daha verimli ve uygun maliyetli hale getirebileceği yapılan anketler ve araştırmalar sonucu tespit edilmiştir. Bu tekstil ürünlerinin kullanım ömrünün dolması sonrası atığa dönüşmesi ve İTÜ’ ye tekrar geri kazandırılamaması da tespit edilen sorunun ikinci ayağını oluşturmaktadır. Bu iki hususa birden fayda sağlayacak ve İTÜ Yeşil Kampüs anlayışının pekişmesi, kampüsün tüketilen tekstil ürünleri bağlamında da daha sürdürülebilir hale gelmesine destek olmak üzere, İTÜ logolu tekstil ürünlerinin tedarikine ilişkin bir iş modeli geliştirilmiş ve bu tez kapsamında anılan modelin işleyişi tartışılmıştır.

Students: Duygu BOY, Berfin MÜJDE, Sena Nur DURSUN
Advisor Information: Prof. Dr. Cevza CANDAN, Prof. Dr. Banu UYGUN NERGİS
Supporting Organization / Project Information: -
Summary:
The high consumption of water in the textile industry is a major threat to the future of our water resources. In this project, it was aimed to reduce the water footprint in the washing process for denim production. As a first step, a comprehensive literature search was carried out for conventional as well as new technology washing processes. In the light of the literature findings, a sustainable washing model which aims to reduce water footprint, was proposed. The suggested model, together with the  conventional washing were carried out in Eylül Tekstil, in collaboration with LC Waikiki. The data obtained were compared according to ISO 14040/44 (Life Cycle Assessment) and ISO 14046 (Water footprint). For  the evaluation, the system limits were set from the entrance of the washing facility to its exit.

Students: Hatice Fehime FİDAN, Hatice KOÇ
Advisor Information: Prof. Dr. Cevza CANDAN, Prof. Dr. Banu UYGUN NERGİS
Supporting Organization / Project Information: -
Summary:
Masks, caps (scrub hats), and gowns are the widely used articles of PPE (personal protective equipment)  to prevent inhilation of viruses or contact with infectious agents. Use of such PPE creates a barrier between the user and the infectious agent. Mask, gown and cap use has increased enourmously during COVID-19 pandemic. In the Project, the aim has been to design an affordable reusable, environmentaly friendly mask, gown and scrub hat that have high protective efficiency by employing advanced materials and technologies.

Students: Emir NALINCIOĞLU, Mesut KARACA, Abdulmelik TURAN
Advisor Information: Doç. Dr. Nazan OKUR, Doç. Dr. Canan SARIÇAM
Supporting Organization / Project Information: -
Summary:

Today, the impact of the fast fashion model continues in the world as mainstream. In this model, the fashion seasons change faster, the delivery time of a product from design to production is shortened, it meets the ever-changing fashion trends and quickly meets the emerging consumer needs. The world changed with Covid -19, which stated that it emerged in Wuhan, China after the end of 2019 and that the most memorable problem was experienced in 2020. Covid -19 has had various impacts on the environment and climate, this study investigates the sustainable fashion consumption impact of Covid- 19 on humans and designs a model for it. In this study, the behaviors of consumers related to sustainable fashion with Covid-19 are discussed. First of all, sustainable fashion models were designed and a survey was conducted as a result of these designed models. The survey was conducted with 3 different main factors such as fear of Covid-19, environmental awareness and social responsibility. These 3 factors, which emerged as a result of the literature research, helped us later on how to interpret the survey results. Other situations that the survey questioned apart from these 3 factors are the age, gender, income level and education level of the people. A total of 507 people participated in the online survey. The values obtained as a result of the survey were evaluated with computer programs and these results were interpreted statistically. As a result of the analysis made by computer programs, the factors that were 8 under normal conditions were determined as 7. Analyzes were used to test the model designed after the survey results. These analyzes are; explanatory factor analysis and structural equation model. Finally, the interpretation of these analyzes was not made on all answers alone. The answers given according to the gender of the persons, the answers given according to the income level of the persons, the answers given according to the education level of the persons and the answers given according to the age of the persons were interpreted and examined separately. This research will discuss and designed of model consumer behavior about sustainable fashion with Covid-19.

Students: Osman BAYAT, Kaan ÖZER, Mehmet Emir ELMALI
Advisor Information: Prof. Dr. Emel ÖNDER KARAOĞLU, Doç.Dr. Sena CİMİLLİ DURU
Supporting Organization / Project Information: -
Summary:
Cycling is one of the most popular activities in which textiles and sports intersect to a large level. Comfort, aesthetics, durability, sustainability and functionality have a significant impact on the cyclist's performance. The aim of the project was to create a new computational analysis method for product design and to investigate the effects of knitted fabric thermal comfort factors on cyclists. In this direction, with the literature research, twenty-six articles and two hundred and fifty-three samples were examined. Based on the fabric comfort data obtained, the most comfortable fabric was determined by the computational analysis method depending to the varying environmental and cycling sports conditions. This new approach, seeking thermal balance conditions of the wearer, was proposed as and promising method to functional product design.

Students: Meliha YOLAÇAN, Buse BECERENEL, Tuğçe ÇALIŞKAN
Advisor Information: Doç. Dr. İkilem GÖCEK, Öğr. Gör. Dr. Merve KALAFAT 
Supporting Organization / Project Information: -
Summary:

With the technological developments, the expectation to be met from the textile and clothing sectors has shifted from the framework of aesthetic concern to functionality features. In line with this expectation, smart textiles, which are wearable technology products, have emerged. Smart textiles, which emerged by incorporating information and communication technologies into textile materials, emerged as a result of the multidisciplinary work of units such as materials science, electrical engineering, textile engineering and computer engineering. Today, it is used in many fields such as medicine, military, sports, transportation and so on. Textile-based sensor production has a very large share in this category. These systems, which are capable of sensing, heating, lighting or transmitting data, provide a wide application advantage. Considering all these, the aim of this study was determined as 2 different textile-based sensor designs that will serve as data feed in the exoskeleton system designed for people with paraplegia. TPU nanofibers produced with electronic spinning technology were used as the substrate in the design, thus giving the design a porous, breathable and flexible structure. After the TPU polymer was dissolved using DMF and EA, nanofiber production was carried out by electronic spinning process. These processes were carried out in the Laboratory of the Faculty of Textile Technologies and Design of Istanbul Technical University. Many designs have been created for sensors.

Afterwards, electrical conductivity was tried to be given to the 21 samples produced. For this, inkjet printing process using conductive inks was used. Carbon black was chosen as the conductive ink. The desired results could not be obtained from the study with silver inks. Print patterns were created as a result of an extensive literature review. 15 different designs were made for the sensors, 9 of them were used for stress and 6 of them were used for pressure sensors. Afterwards, the curing process was carried out to stabilize the inks. Multimeter and LCR meter were used to measure electrical conductivity, which is one of the most important parameters in sensor design. Each sample was measured separately. Changing resistance values are observed with the designed strain sensors but better results are obtained from strip designs. For pressure sensors it has been observed that no measurement can be taken with the weights less than 5 grams and that there is an indistinguishable change in capacitance values for loads heavier than 30 grams.

Students: Nazlıcan ÇİKOT, Beril AYIK, Meltem ÇÖL
Advisor Information: Prof. Dr. Cevza Candan ve Prof. Dr. Banu Nergis
Supporting Organization/Project Information:  LC Waikiki
Summary: 

The collaborative efforts spent by different stakeholders including apparel retail companies and institutions of higher education, play a prominent role in implementing sustainable practices such as upcycling. The senior design project tittled “UPCYCLED DENIM SHOPPING BAG DESIGN” focuses on developing an upcycling design strategy for converting the cut-out denim test samples obtained from textile quality control processes in an apparel retail company, into shopping bags which can be used instead of plastic ones at apparel retail stores. Plastic packaging pollutes the environment as much as textiles, and many authorities, including the Turkish ones, have passed laws to control and reduce packaging waste and raise recycling for a sustainable environment. A commonly used   packing, i.e. shopping bag, may evoke environmentally conscious purchasing decisions among society at large.