Investigating the effect of recycled cotton included fabrics on the thermal behaviour by using a female thermal manikin

In recent years, with the increase in global awareness of environmental problems, the term “sustainability” became more important for apparel manufacturers and consumers. Therefore, recycling of wastes plays a significant role in environmental sustainability by converting the wastes into raw materials. This study focused on recycled cotton-included fabrics, to evaluate the effect of these fabrics on thermal comfort properties. In this context, first, the 45% recycled cotton/55% polyester blended yarns and 50% virgin cotton/50% blended yarns were obtained. Afterwards, single jersey and rib-structured fabrics were knitted using these yarns. The thermal comfort tests were performed on the fabrics and four long sleeve rounded neck shirts then were manufactured using these fabrics to test by the thermal manikin method. Results showed that the yarns including recycled cotton led to a decrease in the values in air permeability of the fabrics and in the effective clothing insulation of the garments. In contrast, it was observed that, including recycled cotton increased the thermal resistance values of the fabrics.The authors also would like to thank Kempaş İplik Tekstil Ürünleri San. ve Tic. A.Ş. for supplying the yarns and Sun Holding A.Ş. for knitting the fabricThe authors gratefully acknowledge the funding by the project 15-MUH-035 of Ege University funded by Scientific Research Projects Coordination as well as the funding by the project UIDB/00264/2020 of 2C2T – University of Minho, Center for Textile Science and Technology, funded by National Founds through FCT/MCTES

Natalizumab, Fingolimod and Dimethyl Fumarate Use and Pregnancy-Related Relapse and Disability in Women With Multiple Sclerosis

To investigate pregnancy-related disease activity in a contemporary multiple sclerosis (MS) cohort

Paça Kıvırma İşleminde Otomat Kullanımının İşlem Süresi ve Kalite Açısından İncelenmesi

Dünya ticaretinde önemli bir paya sahip olan hazır giyim endüstrisi, dünyadaki diğer emek yoğun sektörler gibi zorlu koşullar içeren rekabet ortamı ile mücadele etmektedir. Teknolojik gelişmeleri takip etmek ve bu faaliyetlere ayak uydurmak operasyonel verimliliği olumlu yönde etkileyecektir. Bu nedenle, teknolojik gelişmeleri şirketlere adapte edebilmek, günümüz iş dünyasında büyük önem arz etmektedir. Bu çalışmada casual (günlük) pantolonlardaki paça kıvırma operasyonu incelenmiştir. Paça kıvırma işlemi zor bir işlem olarak tanımlanmasa da el becerisi gerektirmektedir. Özellikle dar paçalı pantolonlarda, makinenin (baskı ayağının) altında silindirik paçanın kontrol edilmesi zor olduğundan, dikim sürelerinin uzamasına ve bazı istenmeyen kalite sorunlarına neden olabilmektedir. Bu çalışmada, denim pantolonlarda paça kıvırma işleminin klasik yöntemle ve yeni geliştirilen otomatla gerçekleştirilmiş ve her iki yöntem; işlem süreleri ve kalite açısından karşılaştırılmıştır. Böylece, verimlilik (işlem süresi) ve kalite açısından avantajlı yöntem belirlenmiştir. Bu çalışmada, paça kıvırma işleminde otomat kullanımının % 33.34 zaman tasarrufu sağladığı ve kalite problemlerinin neredeyse yok edildiği görülmektedir

ULTRASONIC ENERGY USAGE IN APPAREL INDUSTRY

WOS: 000289879100016New production methods in manufacturing industries are applied by rapidly developing technology. One of these methods is using ultrasonic energy in apparel industries. In this paper; the working principles of sewing machines that use ultrasonic energy, the sewing styles with this machines, using areas and the advantages of this machines will be mentioned alternately. Different fabric types were joined by using different types of roller surface. Using different rollers will bring out differences in sewing strength. The sewing strengths of different fabrics and different rollers are compared with each others, with (one of clasical methods) lock stitch strengths and with fabric tensile strengths. As a result; ultrasonic welding has more advantages than the other joining methods in maintenances of process time and strength

An investigation on the seam tensile properties of ultrasonically bonded nonwoven fabrics

WOS: 000400278900008In this study, the seam tensile properties of the ultrasonically bonded nonwoven fabrics were investigated and the effects of the fabric type, roller type and sewing speed on the seam tensile properties of the samples were studied. It was deduced that fabric type, roller type and sewing speed have statistically significant effect on the seam tensile properties of the nonwoven fabrics. The experimental results indicate that, the tensile strength of the seams made with made with the engraving roller 4 mm wide point and 25 dm/min speed is the highest, and with the engraving roller 9 mm wide point and 45 dm/min is the lowest