Browsing by Author "Kut, Dilek"
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Item %100 pamuklu dokuma kumaşlara uygulanan buruşmazlık bitim işlemi sonrası kopma mukavemeti, aşınma dayanımı ve buruşma açısı özelliklerinin yapay sinir ağı (artificial neural network) yöntemi ile tahminlenmesi(Uludağ Üniversitesi, 2006) Yürük, Neslihan; Kut, Dilek; Uludağ Üniversitesi/Fen Bilimleri Enstitüsü.Bu çalışmada buruşmazlık apresi uygulanmış pamuklu kumaşlarda kullanılan kimyasal maddenin ve işlem koşulunun kopma mukavemeti, buruşma açısı ve aşınma dayanımı üzerine etkisi araştırılmıştır. Çalışmada 24 farklı kumaşa tek bir buruşmazlık reçetesi uygulanmış ve kumaşların kopma mukavemeti, aşınma dayanımı ve buruşma açısı ölçümleri yapılmıştır. Ardından yapay sinir ağı yöntemi ile kumaşın özellikleri ile buruşmazlık işlemindeki kopma mukavemeti, aşınma dayanımı ve buruşma açısı değerlerinin değişimi arasında ilişkilendirme yapılmıştır.Item Application of low-frequency oxygen plasma treatment to polyester fabric to reduce the amount of flame retardant agent(Sage Publications, 2012-04) Ömeroğulları, Zeynep; Kut, Dilek; Uludağ Üniversitesi/Mühendislik Mimarlık Fakültesi/Tekstil Mühendisliği Bölümü.; AAH-4335-2021; 55027410000; 55027507400To reduce the quantity of chemicals required to produce flame retardant polyester fabrics, a low-frequency oxygen plasma treatment at low temperature (<50 degrees C) was carried out before padding the polyester fabrics with alkyl-phosphonate-structured flame retardant agents. The concentration of the flame retardant agent was varied to determine the plasma treatment effect on the amount of chemicals used in the finishing process. All padded fabrics which had pre-plasma treatment or not, were also washed five times to determine the washing resistance. The surfaces of the polyester fabrics were characterized by FT-IR (ATR) and SEM. The flame retardant performances of the polyester fabrics were evaluated by the LOI test. Hydrophilic characteristics of the polyester fabrics were also tested after the plasma treatment. According to the results, the hydrophilic properties of the polyester fabrics improved after oxygen plasma treatment. Moreover, the plasma treatment allowed the reduction of the flame retardant concentration to 50 g/L in the padding system, however, it was out of the optimal concentration range; the chemical amount consumed was half of the maximum concentration without the LOI changing significantly.Publication Color, fastness, and antimicrobial properties of wool fabrics dyed with Helichrysum Arenarium Subsp. Aucheri extract(Taylor & Francis, 2020-12-06) Cüce, Mustafa; Kılınç, Mehmet; Kılınç, Nur; Tekin, Aşkın; Kut, Dilek; KUT, YAŞAR DİLEK; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0002-9059-0838; AAH-4335-2021Natural dyestuffs are evaluated as innovative natural sources to color the fabric and give antibacterial properties in the textile industry. In this study, methanol extracts of Helichrysum arenarium subsp. aucheri were used as natural sources in wool fabric dyeing. Aluminum potassium sulfate (KAl(SO4)(2).12H(2)O), copper sulfate (CuSO4.5H(2)O), and iron sulfate (FeSO4.7H(2)O) metal salts were used in the pre-mordanting process. The dyeing process was carried out in mordant and non-mordant fabrics at 25% and 50% concentrations. In this experiment, fastness values are ranked between medium and good grades. The point that should be especially emphasized is that the un-mordanted and dyed samples' fastness values are acceptable. The disc diffusion method was applied to determine the antibacterial effect of extracts against Staphylococcus aureus ATCC 25923 and gram-negative Escherichia coli ATCC 25922. The methanol extract obtained from the ultrasonic water bath has shown the most powerful antibacterial effect against S. aureus ATCC 25923 with a 15.8 zone diameter. The dyed wool fabrics demonstrated excellent antimicrobial activity (reduction rates: w38.4e100) against two different bacteria according to AATCC 100 method.Item Determining suitable softener type for 100% PET woven fabric(AATCC, 2005-05) Kut, Dilek; Güneşoğlu, Cem; Orhan, Mehmet; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0001-8043-4148; AAH-4335-2021; M-2463-2018; AAG-8034-2021; 55027507400; 8299162200; 35307795300Softeners are common textile treatments that affect many textile properties. The chemical structures of softeners determine their effectiveness. This study focused on the effect of softener type; e.g., micro or macroemulsions of polysiloxane, fatty acid, or quaternary ammonium on 100% PET woven fabric properties including drapeability, lightfastness, color evaluation, and breaking strength. Softeners that gave better drapeability and soft hand were identified, and their effects on other important end use properties were examined. Various softener types had significant effect on these fabric properties, with differences in electrical charge between softeners of the same type being an important parameter. The hydrophilic polysiloxane softener type was found to be the most suitable for application on PET woven fabrics.Publication Development of multifunctional cotton fabric via chemical foam application method(Sage Publications Ltd, 2019-10-30) Başyiğit, Zeynep Ömeroğulları; Hauser, Peter; Kut, Dilek; KUT, YAŞAR DİLEK; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi; 0000-0002-9059-0838; AAH-4335-2021Nowadays, the methods and techniques used in the textile industry are required to be environmentally friendly, and water and energy saving. In addition to these, they should transfer more than one functionality, in other words give multifunctionality to the textile material with reliable and sufficient results in terms of efficiency and permanence. With the increase in and diversification of today's industrial requirements, one functionality on the fabric may be insufficient to meet the requirements, and therefore the subject of multifunctionality holds an important place in the textile industry. Therefore, in this study flame retardant, antibacterial and water-repellent, single-layered multifunctional 100% cotton fabrics with different functionalities on different sides (back and face surfaces) of the fabric were obtained via a chemical foam application method, which has many advantages compared with conventional methods. In some of the experimental parts, impregnation and foam application methods were combined in the process in order to optimize the multifunctionality properties of the fabrics. In order to indicate the performance test of cotton fabric, vertical burning test, contact angle test, antibacterial test against Gram positive and Gram negative bacteria, color spectrum analysis and tearing strength test were carried out while, in terms of characterization tests, Fourier transform infrared (attenuated total reflectance) and scanning electron microscope analyses were performed. According to the test results, the flame retardancy effect of the samples was improved significantly while antibacterial results showed a 99% reduction of bacteria and the finished fabrics demonstrated improved water repellency with contact angles up to 125 degrees. In addition, the functionalities were durable up to 50 washing and 50 drying cycles.Item The effect of dyeing properties of fixing agent and plasma treatment on silk fabric dyed with natural dye extract obtained from Sambucus Ebulus L. Plant(Elsevier, 2015) Dayıoglu, Habip; Merdan, Nigar; Canbolat, Seyda; Şener, S.; Sarıdoğan, E.; Staub, S.; Kut, Dilek; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0002-9059-0838; AAH-4335-2021In this study, the natural dye extracted from the fruits of Sambucus Ebulus L. (Dwarf Elder) was used to dye silk fabric. Prior to the dyeing process, the samples were exposed to oxygen plasma pre-treatment at low frequency for 1 and 5 minutes. Following the plasma pre-treatment, the samples were dyed with the natural dye by the use of conventional and microwave dyeing methods. After dyeing procedure, the samples were treated with three different fixing agents. Finally, the effect of plasma pre-treatment and microwave energy, and type of fixing agent as a dyeing procedure on colour fastness to light, rubbing and washing and also the colour strength of the samples were investigated. According to the results, the increase on plasma treatment time and microwave energy increased the colour strength of samples. The fixing agent treatment did not affect much as the colour fastness properties of dyed samples.Item The effect of plasma treatment on the dyeability of silk fabric by using Phytolacca Decandra L. natural dye extract(Ege Üniversitesi, 2016-07-25) Dayıoğlu, Habip; Merdan, Nigar; Eyüpoğlu, Şeyda; Kılınç, Mehmet; Kut, Dilek; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; AAH-4335-2021; 55027507400The aim of this study is that plasma treatment effect on dyeability properties of silk fabric with natural dye is investigated. For this purpose, in this study, silk fabric was dyed by the conventional method with natural dye extracted from Phytolacca Decandra L. Before the dyeing process, the sericin on silk fabric was removed. After then, plasma treatment was applied the samples with using oxygen and nitrogen gas for 1, 5 and 10 minutes at low frequency. Furthermore, plasma treated samples were mordanted with potassium aluminum sulfate before the dyeing process. After the dyeing process, colour strength, colour fastness, surface properties, moisture absorption, chemical groups and tensile strength of the dyed samples were investigated. According to the results, the plasma treatment and mordanting process caused to improve the colour yields. The scanning electron microscope images showed that the plasma treatment causes microcracks on the surface of the silk fiber. After the plasma treatment, the hydrophility of samples increased. Moreover, plasma treatment creates microcracks on the silk fiber surface, resulting tensile strength decreases.Item Effect of the particle size of finishing chemicals on the color assessment of treated cotton fabrics(Wiley, 2007-02-16) Güneşoğlu, Cem; Kut, Dilek; Orhan, Mehmet; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0001-8043-4148; M-2463-2018; AAH-4335-2021; 8299162200; 55027507400; 35307795300Color change is one of the important side effects of textile treatments to consider. This article evaluates the effect of the particle size of commonly used finishing chemicals (fluorocarbon resins and dimethyloldihydroxylethylene urea reagents) on color assessment by studying instrumental analyses, and it is reported that the smaller the particle size is, the higher the surface reflectance is, and the less the color change can be achieved. On the other hand, the effect of the particle size is not significant on color assessment after abrading cycles.Item Effects of environmental conditions on the antibacterial activity of treated cotton knits(Amer Assoc Textile Chemists Colorists - AATCC, 2005-03) Kut, Dilek; Orhan, Mehmet; Güneşoğlu, Cem; Özakın, Cüneyt; Uludağ Üniversitesi/Mühendislik-Mimarlık Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0001-8043-4148; AAH-4335-2021; M-2463-2018; 55027507400; 35307795300; 8299162200; 57200678942The effects of environmental conditions on the antibacterial activity of finished single jersey-knitted cotton fabric have been studied. The fabrics were bleached, finished separately with antibacterial chemicals, and subsequently exposed to chemical solutions that simulated use and wear. The resulting antibacterial activities were evaluated against S. aureus and E. coli bacteria using AATCC Test Method 100-1999. Bleaching and antibacterial finishing led to significant reductions in bacterial growth. The leaching (control led-release) antibacterial mechanism was found to be more effective than the non-leaching mechanism on the respectively finished cotton fabrics. The finished bleached fabrics maintained good antibacterial activity against S. aureus even after the fabrics were exposed to urine.Item Effects of plasma and ozone treatments on tensile and whiteness properties of 100 % silk(Uludağ Üniversitesi, 2015-04-25) Balcı, Nurşah; Ömeroğulları, Zeynep; Kut, Dilek; Eren, Hüseyin Aksel; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.In this study raw and degummed silk fabrics are treated with low frequency oxygen plasma and ozone in order to investigate the effects on the physical properties of silk. Plasma and ozone treatments are performed individually and in combined order for 5, 10 and 15 min. The yellowness and whiteness values are determined after the plasma and ozone treatments. The tensile strengths of treated and untreated silk fabrics are measured. The SEM images of the surfaces of silk fabrics are investigated and the combined effect of ozone and plasma treatments are discussed after each test. Results indicate that there is more significant decrease in ozone treatment, considering decrease in whiteness indexes and increase in yellowness values of silk fabrics when compared to the plasma treatment. Generally, when the treatment time of plasma or ozone is increased, increase of yellowness and decrease of whiteness become clear.Item Energy and water saving finishing method for producing durable flame retardant cotton fabric(IOP Publishing Ltd, 2018) Başyiğit, Z. Ömeroğulları; Kut, Dilek; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0002-9059-0838; AAH-4335-2021; 55027507400This study presents the improvement of durable flame retardant (FR) effect of 100 % cotton fabrics via chemical foaming system which provides energy and water saving significantly, compared to conventional methods. In order to carry out the experiments, dialkylphosphonocarboxylic acid amide based flame retardant agent and auxiliary chemicals were applied on cotton fabrics in a foam formed. Foam parameters such as blow ratios and wet-pick-up ratios were varied and flame retardant properties of foamed cotton fabrics were compared with cotton fabrics treated through pad-dry-cure process in order to determine the performance effect of cotton fabrics in flame retardancy via different finishing methods. After the finishing processes, flame retardant effect of all treated fabrics was examined with vertical burning test method. As durability of flame retardant applied cotton fabrics against washing process is one of the most important subjects that has been tried to be improved with different approaches for a long time, all treated fabrics were washed and dried 50 times, separately. After repeated washing and drying cycles, burning behavior of washed and FR treated fabrics were also tested vertically for determining flame retardancy effect. Beside the vertical burning test, tearing strength test, color spectrums, SEM and SEM-EDX analysis of fabrics were carried out. According to test results, even at the low wet-pick-up ratios, a significant increase was observed in flame retardant effect of cotton fabrics that were treated with FR agents via foam application. Moreover, all treated fabrics were durable against 50 washing and 50 drying processes.Item Ev tekstilinde kullanılacak materyallerde ısıl regülasyon sağlamaya yönelik mikrokapsül hazırlanması ve uygulanması(Uludağ Üniversitesi, 2010-09) Güler, Zeliha; Kut, Dilek; Uludağ Üniversitesi/Fen Bilimleri Enstitüsü/Tekstil Mühendisliği Anabilim Dalı.Kullandığı enerjinin önemli bir kısmını dışarıdan sağlayan ülkelerde enerjinin verimli olarak kullanılması ve böylece enerjiden tasarruf sağlanması gitgide önemli hale gelmektedir. Ayrıca enerji fiyatlarındaki artış miktarının beklenen seviyelerin üzerinde gerçekleşmesi nedeniyle enerji giderleri önemli gider kalemlerinin başlıcalarından biri olmuştur.Enerji giderlerinin minimize edilmesi için farklı yöntemler uygulanmaktadır. Enerji tasarrufu sağlamak amacıyla en çok uygulanan ve ilk akla gelen önlem, yalıtımdır. Yalıtım uygulanması, hem enerji tasarrufu sağlanması hem de çevre kirliliğinin önlenmesi açısından önem taşımaktadır.Son dönemlerde yalıtıma ek olarak, ortamda bulunan mevcut enerjiyi daha verimli kullanmak ve ortamın ısısal konforunu arttırmak amacıyla faz değiştiren maddelerin (FDM) kullanımı önem kazanmaktadır. FDM'lerin erime ile donma/kristalleşme sırasındaki sıcaklıkları sabittir. Bu prensipten hareketle bir FDM, diğer maddelere göre daha fazla ısı absorbe eder. Ortamdaki sıcaklık artışı ile birlikte malzemenin ısı absorbe ettiği, tersi durumda ise absorbe ettiği ısıyı dış ortama verdiği görülür. Bu özellikleri nedeni ile FDM'ler ısıtma ve soğutma uygulamalarının verimliliğinin arttırılmasında katkı sağlamaktadır.Tekstil malzemelerine entegre edilen FDM'ler sadece birkaç mikrometrelik küreler (mikro-kapsüller) içine yerleştirilmişlerdir. Böylece, FDM'in kullanımı kolaylaşırken ısı transferi açısından daha uygun bir ortam oluşmaktadır.Bu çalışmada, mikrokapsüllenmis FDM'ler, ev tekstili amaçlı kullanılacak perdelik ve döşemelik kumaşlara uygulanarak, ortamın ısıtma-soğutma yükünün azaltılması hedeflenmektedir.Item Ev tekstilinde kullanılacak materyallerde multifonksiyonel özellik sağlayacak mikrokapsül hazırlanması ve uygulanması(Uludağ Üniversitesi, 2011) Özerdem, Bilun; Kut, Dilek; Uludağ Üniversitesi/Fen Bilimleri Enstitüsü/Tekstil Mühendisliği Anabilim Dalı.Bu projede, ev tekstilinde kullanılan polyester ve polyester karışımı ürünlere multifonksiyonel özellik kazandırmaya yönelik olarak mikrokapsül hazırlanmış ve hazırlanan mikrokapsüller kumaşa aktarılarak kullanım alanına uygun olarak test edilmiştir. Mikrokapsül hazırlamada optimum sonuçlar sağlandıktan sonra, kapsül içeriği farklılaştırılarak, koku oluşumunu önleyen veya koku veren, sinek/böcek savar, antibakteriyel gibi multifonksiyonel özellikler kazandırılması hedeflenmektedir. Bu özellikler günümüzde çeşitli kimyasal bitim işlemleri ile uygulanmakta ve çokta başarılı sonuçlar elde edilmektedir.Ancak bu özelliklerin mikrokapsülleme tekniği ile elde edilmesinin hem üreticiye hem tüketiciye hem de yaşadığımız çevreye çok büyük katkıları olacaktır. Çünkü mikrokapsülleme yöntemi ile su, enerji ve kimyasal sarfiyatı büyük ölçüde azalmakta, elde edilen özelliklerin kalıcılıkları artmaktadır. Böylelikle üreticinin gider kalemleri azalmakta bunun sonucu olarak da tüketiciye daha uygun ve daha uzun ömürlü ürünler sunulabilmektedir.Item Formaldehyde-free and halogen-free flame retardant finishing on cotton fabric(AB. Basım ve Yayınevi, 2018-05-16) Başyiğit, Zeynep Ömeroğulları; Kut, Dilek; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0002-9059-0838; AAH-4335-2021; 55027507400This study focuses on the application of environmental-friendly flame retardant (FR) finishing which does not include formaldehyde or halogen based chemicals on cotton fabrics since it has been announced that these kinds of materials have environmental and toxicological hazards. Three different types of FR agents were used in the finishing bath and applied on raw, pre-treated and dyed cotton fabrics, respectively. One of them was the mixture of inorganic and organic salts while the other type was chosen as phosphate structured which have a commercial use in textile industry widely in order to compare the flame retardant effects on cotton. The third type was calcium carbonate based chemical produced in Balikesir Turkey named Firetex. After finishing treatment of all types of FRs, performance tests as burning tests and color spectrums were carried out beside the characterization tests as SEM and FTIR-ATR analysis. In order to determine the washing durability of the cotton fabrics, each performance test was performed after 5 repeated washing cycle. According to the results, it was observed that both three types of flame retardant agents improved the flame retardant effect of cotton fabrics however the char length of cotton fabric which treated with Firetex was lower than the rest and it was indicated in the study that using natural structured FR could be a new area in green chemistry as a FR textile chemical.Item Improving the antibacterial activity of cotton fabrics finished with triclosan by the use of 1,2,3,4-butanetetracarboxylic acid and citric acid(Wiley, 2009-02-05) Orhan, Mehmet; Kut, Dilek; Güneşoğlu, Cem; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0001-8043-4148; AAH-4335-2021; M-2463-2018; 35307795300; 55027507400; 8299162200For producing antibacterial textiles, the conventional finishing processes have high productivity and low processing costs, but textiles finished in these ways exhibit low durability against laundering. Therefore, cotton fabrics were bleached with hydrogen peroxide, finished with triclosan, and then treated with polycarboxylic acids such as 1,2,3,4-butanetetracarboxylic acid (BTCA) and citric acid (CA) as crosslinking agents to provide durable antibacterial properties. The surface of fibers treated with BTCA had a greater crosslinked area, and the surfaces of fabrics treated with CA were exposed to greater amounts of deformation due to the mechanical and chemical influences after 50 launderings. The bleaching and finishing treatments did not dramatically affect the breaking strength. However, the polycarboxylic acid treatment (both BTCA and CA) alone showed reductions in the breaking strength when the acid concentration was increased. The polycarboxylic acids were fairly effective against both bacteria, even at lower concentrations, when they were applied to stand-alone cotton fabrics, whereas the antibacterial activity decreased somewhat after the use of polycarboxylic acid and triclosan in the same recipes. Adding polycarboxylic acids to the antibacterial finishing recipes enhanced the durability after 50 launderings, and the durability of the recipes containing BTCA was much higher than that of the recipes containing CA.Item Improving the antibacterial property of polyethylene terephthalate by cold plasma treatment(Springer, 2012-04) Güneşoğlu, Cem; Orhan, Mehmet; Kut, Dilek; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0001-8043-4148; AAH-4335-2021Many studies suggest strong hydrophilicity of plasma treated polyester surfaces. However, no studies have been reported on the influence of plasma on the antibacterial activity of polyethylene terephthalate. First samples were padded with triclosan as antibacterial agent with different concentrations. Second samples were treated by oxygen plasma with different operating frequency and treating time, respectively. Afterwards, plasma treated samples were padded with triclosan in same conditions. The results revealed that the antibacterial activity slighlty increased after treating with triclosan. SEM images and FTIR spectra showed that horizontal channels were brought about on the fiber surface and then better surface roughness and wettability were obtained by plasma. Fibers were fully coated with triclosan after plasma and the antibacterial activity increased with increasing operating frequency and reaction time. Finally, the samples treated with triclosan after plasma gave acceptable results and showed the best antibacterial activity for Staphylococcus aureus and Escherichia coli.Publication Investigation of effects of protease enzyme produced by Bacillus subtilis 168 E6-5 and commercial enzyme on physical properties of woolen fabric(Taylor, 2019-06-04) Demirkan, Elif; Kut, Dilek; Sevgi, Tuba; Doğan, Meral; Baygın, Eren; DEMİRKAN, ELİF; KUT, YAŞAR DİLEK; SEVGİ, TUBA; Doğan, Meral; Baygın, Eren; Bursa Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Biyoloji Bölümü; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü; 0000-0002-5292-9482; 0000-0002-9059-0838; 0000-0002-7528-9529; AAG-7112-2021; AAH-4335-2021; ABI-4472-2020; CMN-9718-2022; CFF-0023-2022Wool is one of the most important fibers in textile industry, and has been commonly used for producing value added products due to its properties of lightness, warmth, softness, and smoothness. However, the special scale structure in wool cuticle can cause felting shrinkage of wool fabrics. Proteases have been widely used to modify the surface of wool to prevent wool felting, due to their ability to catalyze the hydrolysis of peptide bonds in wool scales. Although the treatment of wool with proteases was considered as an environmentally friendly technique to provide wool fabrics with shrink resistance properties, proteases exhibited low efficacy in removing the cuticle scales because of the highly cross-linked barriers. In this study, wool fabric was treated with protease enzyme obtained from novel isolated bacteria and commercial protease enzyme, and the results were compared. The tear strength, pilling changes in Delta E values, whiteness and yellowness values of wool were controlled. Results showed that treatment with Bacillus subtilis 168 E6-5 protease enzyme yielded improvements in the physical properties of wool fabric compared with commercial enzyme.Item Investigation of pumice stone powder coating of multilayer surfaces in relation to acoustic and thermal insulation(Sage Publications, 2015-01-20) Canbolat, Şeyda; Dayıoğlu, Habip; Kut, Dilek; Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü.; 0000-0002-9059-0838; AAH-4335-2021; 55027507400In this study, production of multilayer surfaces for acoustic and thermal insulation was investigated. After the optimum textile materials had been chosen to provide acoustic and thermal insulation, surfaces were created using different relative methods in this field. Sublayer nonwoven produced from slotted polyester fiber was combined with two different top layers of fabrics, one of which was the top layer of fabric woven from plain weave obtained from texture yarns, which, in turn, was produced from hollow polypropylene, and the other was plain weave obtained from texture weft yarn, which was produced from conventional polypropylene fibers separately. Subsequently, these two different surfaces were combined with polyurethane-based material. Pumice stone powder in three different concentrations and two different sizes was added to enhance acoustic and thermal insulation, after which the sublayer had been coated with an adhesive material to produce multilayer adhesive force and adherence to the wall. Consequently, air permeability, sound absorption, and thermal conductivity coefficients of multilayer surfaces were researched with regard to the type of top layer of fabrics, concentration, and particle size of pumice stone powder. The results demonstrate that the properties of multilayer surfaces concerning acoustic and thermal insulation increase with the increasing concentration of pumice stone powder and with the decreasing sizes of pumice stone particles. In addition, air permeability of multilayer surfaces was ensued to decrease with the increasing concentration as well as particle size of pumice stone powder.Publication Investigation of the bee-repellent properties of cotton fabrics treated with microencapsulated essential oils(Sage, 2019-04-01) Eyüpoğlu, Şeyda; Kut, Dilek; Girişgin, Ahmet Onur; Eyüpoğlu, Can; Özüiçli, Mehmet; Dayıoğlu, Habip; Civan, Mustafa; Aydın, Levent; KUT, YAŞAR DİLEK; GİRİŞGİN, AHMET ONUR; ÖZÜİÇLİ, MEHMET; AYDIN, LEVENT; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Parazitoloji Anabilim Dalı; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi/Tekstil Mühendisliği Bölümü; 0000-0002-0020-2708; 0000-0002-9059-0838; AAH-4335-2021; B-5286-2017; FQC-4674-2022; HLG-4450-2023In this study, to produce single-use bee-repellent fabrics, a variety of essential oils were encapsulated with gum arabic wall material at a 1:5 ratio of wall to the core substance. The following core substances were used: lavender oil, laurel oil, fennel oil, N, N-diethyl-3-methylbenzamide (DEET), lavender + laurel oil, lavender + fennel oil, laurel + fennel oil, lavender + fennel + laurel oil, lavender oil + DEET, fennel oil + DEET and laurel oil + DEET. Lavender, fennel and laurel oils were analyzed by high-performance liquid chromatography. In this context, 11 different microcapsules were produced. After the microencapsulation process, the microcapsules were analyzed with a light microscope and by Fourier transform infrared spectroscopy. Furthermore, an image processing application was developed and implemented to determine the particle size distribution of the microcapsules. After the analysis of the microcapsules, cotton fabric samples were treated with the microcapsules. In order to analyze the microcapsules on the fabric samples, scanning electron microscopy (SEM) was used. To analyze the bee-repellent abilities of the fabric samples, 12 different measurement cabinets made of pine tree and glass were produced. According to the results, lavender and fennel oils can be used as bee-repellent alternatives to DEET in beekeeping.Item Köpük aplikasyonu ile selülozik esaslı tekstil materyaline fonksiyonellik kazandırılması(Uludağ Üniversitesi, 2016-09-05) Başyiğit Ömeroğulları, Zeynep; Kut, Dilek; Uludağ Üniversitesi/Fen Bilimleri Enstitüsü/Tekstil Mühendisliği Anabilim Dalı.Bu tez çalışmasında, köpük aplikasyonu ile selülozik esaslı tekstil malzemelerine fonksiyonellik kazandırılması amaçlanmış ve bu amaç doğrultusunda, güç tutuşurluk, antibakteriyellik ve su-yağ iticilik fonksiyonelliklerini içeren pek çok kombinasyon oluşturulmuştur. Kombinasyonlar oluşturulurken, tekstil malzemesinin tekstil endüstrisindeki kullanım alanı belirlenerek, fonksiyonelliklerin çeşidi ve uygulama yöntemi seçilmiştir. Çalışma süresince, sadece köpük aplikasyonu ya da sadece konvansiyonel emdirme veya bu iki yöntemi birbirine entegre ederek kombine yöntemler kullanılmış ve multifonksiyonellik başlığı altında ikili veya üçlü fonksiyonellikleri içeren kombinasyonlar üretilmiştir.