Arzu Marmarali
Ege University
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Publication
Featured researches published by Arzu Marmarali.
Textile Research Journal | 2011
Gamze Süpüren; Nida Oglakcioglu; Nilgün Özdil; Arzu Marmarali
Double face fabrics are used to ensure better clothing comfort in sports and active wears. High moisture transfer properties of these fabrics affect their comfort properties and make them more functional. In this study, in order to investigate the moisture management properties of the double face fabrics, a special knitting structure, which has different or same yarn combinations in the face and back sides, was used. The selected yarns were cotton—cotton, cotton—polypropylene, polypropylene—cotton and polypropylene—polypropylene for face and back sides respectively. Moisture management properties and the changes of the thermal absorptivity values, which determine the warm-cool feeling, of the produced fabrics were determined and statistically analyzed. All measurements were done both in dry and wet conditions. The results indicate that, the polypropylene (inner)-cotton (outer) fabric has better moisture management property, provides high levels of comfort and can be preferred for summer, active and sports wear.
Textile Research Journal | 2009
Nida Oglakcioglu; Pinar Celik; Tuba Bedez Üte; Arzu Marmarali; Hüseyin Kadoğlu
In this study, thermal properties of different cotton and Angora rabbit fiber blended fabrics were investigated. It is known that cotton fiber has good comfort properties and Angora rabbit fiber is a speciality fur fiber which possesses good softness, whiteness and warmth. The aim of this study was to combine the excellent characteristics of these fibers to produce knitted fabrics with better comfort properties. First, short staple yarns were spun from cotton and Angora rabbit fibers with different blend ratios in two different spinning systems. Then, 1 × 1 rib knitted fabrics were produced with these yarns and the thermal comfort parameters of fabrics were measured on Alambeta and Permetest devices. Finally, according to end use, the optimum ratios were analyzed. The results indicated that the increase of Angora fiber ratio in the fabric and the spinning system affected the thermal comfort properties. The statistical analyses showed that only the fabrics including 25 % of rabbit fiber generated a significant difference on these parameters. Besides, the fabrics knitted from ring yarns had a warmer feeling at first touch and provided more thermal insulation but less water vapor permeability than the fabrics knitted from open-end yarns.
Textile Research Journal | 2004
S. Döonmez; Arzu Marmarali
In this study, we attempt to determine the knittability of a yarn before knitting. Thirty different yarns are knitted into 1 × 1 rib structures with three different loop length values. The knitting process is observed and the number of machine stops, yarn breaks, and holes are recorded. The results of experiments are evaluated by charts and statistical analyses. With a multiple regression analysis, two equations that depend on yarns characteristics can be used to predict yarn-needle and yarn-yarn friction values. In the last stage, we use a binary logistic regression analysis to indicate knittability, depending on the yarn-needle and yarn-yarn friction values, the machine tightness factor, and machine speed values.
International Journal of Clothing Science and Technology | 2009
Nilgün Özdıˆl; Arzu Marmarali; Nida Oglakcioglu
Purpose – The purpose of this paper is to explain the yarn parameters and some finishing process that can affect the abrasion resistance of socks in detail.Design/methodology/approach – The abrasion tests were made on socks produced from the most popular fibers (cotton, wool, PAC, PES, PA, and blends of these) by the Modificated Martindale method. The effects of fiber type, yarn count (for single and ply yarn), combing process, softness process with silicone and mercerization process to the abrasion resistance were investigated.Findings – It was found that the use of coarse yarns, addition of polyester, polyamide fibers or elastane filaments to the structure and application of the mercerization process increase the abrasion resistance of the socks. However, the silicone softeners decrease this value. The resistance of wool socks is higher than acrylics.Originality/value – Socks, which are a necessary item of clothing, need to be comfortable, affordable and retain their quality throughout their life. The m...
Journal of Textile Engineering | 2013
Nida Oğlakcioğlu; A. Aslı Illeez; M. Çetin Erdoğan; Arzu Marmarali; Mücella Güner
Son yillarda, artan tuketici beklentilerini karsilamak amaciyla ozellikle spor giysiler icin yeni ozel kumas yapilari ile yuksek performansli lif ve iplik tipleri gelistirilmektedir. Giysilerin estetik ve modaya uygunlugu yani sira performans ve konfor ozellikleri bu tip fonksiyonel giysilerde en onemli ozelliklerdir. “Iyi” bir spor giysinin, son kullanim amacina gore dort temel fonksiyona (kotu hava kosullarina karsi koruma, yuksek isil izolasyon, nefes alabilirlik ve esneklik) sahip olmasi beklenmektedir. Bu calismanin konusu olan bisikletci giysilerinde ise sporun acik havada gerceklestirilmesi ve yuksek fiziksel aktivite icermesi nedeniyle, farkli dis ortam kosullarina karsi koruma ve yuksek isil konfor ozelliklerini saglamasi gerekmektedir. Bu baglamda, bisikletci giysilerinden genel olarak beklentiler; mukemmel nem yonetimi, yuksek nefes alabilirlik, cabuk kuruma, hafiflik, ruzgar dayanimi, yuksek aerodinamik performansi, ultraviyole korumasi ve anti bakteriyel ozellikler olarak sayilabilir. Bu calismada, bisikletci giysilerinde yaz ve kis aylarinda kullanilan dort farkli kumas yapisinin isil konfor ozellikleri incelenmistir. Bu kapsamda, isil direnc, isil sogurganlik, bagil su buhari gecirgenligi ve hava gecirgenligi gibi onemli isil konfor parametreleri test edilmis ve elde edilen sonuclar son kullanim amacina gore degerlendirilerek dikim isleminin isil konfor ozelliklerine etkileri ortaya konmustur.
Journal of The Textile Institute | 2018
Mustafa Ertekin; Gözde Ertekin; Arzu Marmarali
Abstract Protective clothing protects the body from external influence like heat, chemicals, mechanical hazards, bad weather, etc. by shielding the human body from harsh environmental effects. The maintenance of thermal balance is one of the most important aspects of protective clothing. The study aims to investigate the thermal comfort properties of woven hybrid fabrics produced with high performance core spun yarns. For this purpose, meta-aramid, e-glass, Technora® and Dyneema® fibres were combined using core yarn spinning method in order to enhance the protective performance characteristics. The effects of the core/sheath ratio and type of core materials on the thermal comfort characteristics were investigated and evaluated statistically. The results revealed that, core/sheath ratio, types of core materials have significant effects on thermal comfort characteristics of the fabrics. As the core ratio increases from 19 to 56%, the air permeability of the fabrics increases whereas their thermal conductivity and thermal absorptivity properties decrease. Meta-aramid/E-glass core fabrics can be preferable for protective clothing due to high air permeability and thermal conductivity values.
Journal of Textile Engineering | 2018
Gözde Ertekin; Nida Oglakcioglu; Arzu Marmarali
Bu calisma, farkli elastan iplik numarasi ve elastan besleme oraniyla uretilmis orme kumaslarin fiziksel, mukavemet ve isil konfor ozelliklerinin incelenmesini amaclamaktadir. Fiziksel test sonuclari, daha kalin elastan numarasi ya da yuksek elastan oraniyla orulen kumaslarin yuksek gramaj, kalinlik, patlama mukavemeti ve delinme direncine sahip oldugunu gostermistir. Isil konfor ozellikleri ise kalin elastan iplik numarasi ile tam elastanli yapida orulmus kumaslarin daha yuksek isil iletkenlik ve isil sogurganlik degerlerine sahipken, daha dusuk hava ve su buhari gecirgenligi sagladigini ortaya koymustur.
Journal of The Textile Institute | 2017
Gözde Ertekin; Arzu Marmarali
Abstract This paper aims to analyse the effect of coating, fabric layers and structural parameters on the impact resistance behaviour of warp knitted spacer fabrics used for protective clothing. For this purpose, six warp knitted spacer fabrics were produced by varying thickness and mesh structure and were coated with a silicone substrate. A drop-weight impact tester was used to determine the impact resistance characteristics of the samples. The results indicate that, the impact resistance properties of warp knitted spacer fabrics can be improved considerably by coating as reducing approximately 10 kN of the peak transmitted force. Also, the structural parameters such as fabric thickness and mesh structure have significant effects on impact resistance behaviour of the samples. The fabrics with higher thickness and smaller size mesh on the outer layers have better impact resistance properties. Additionally, the lamination of spacer fabrics can effectively improve the impact resistance characteristics of the spacer fabrics. The warp knitted spacer fabrics can be used as an energy absorbing material for body protection by varying their structural parameters, fabric lamination and/or by coating.
Journal of Fashion Technology & Textile Engineering | 2017
Vassiliadis S; Prekas K; Katsoulis A; Vossou K; Gouvas P; Arzu Marmarali; Blaga M
Multiaxial Tensile Testing of Textile Fabrics The technical applications of the textile structures become more and more often and the measurement of their mechanical properties is very essential. The multiaxial testing of the textile fabrics is of special interest because the fabrics are non-isotropic materials. However the existing equipment is usually expensive and complex. In the present paper a new testing method is presented. The method is based on the operation of the corresponding testing equipment. The mechanical parts have been designed and constructed after their computational modelling so that the prediction and the exact estimation of their performance were possible. The design of the sensor and the electronic modules has been made exclusively designed in order to face the requirements of the measurements of the multiaxial tensile testing. The first version of the testing instrument gave promising results ensuring that the sensing principle is trustful and the mechanical and electronic parts are operational for the testing of knitted fabrics.
IOP Conference Series: Materials Science and Engineering | 2017
I Seçil Aydın; M Kertmen; Arzu Marmarali
In recent years the importance of clothing comfort became one of the most important feature of the fabrics. The aim of this study is to characterize thermal comfort properties of single jersey fabrics were knitted using 100% modal yarns which were spun in various types of yarn spinning methods such as ring spinning, compact spinning, rotor spinning and airjet spinning. Thermal comfort properties like air permeability, thermal resistance, thermal absorptivity and water vapour permeability of fabrics were tested. The results indicate that compact spinning technology will be appropriate for the summer climate casual wear.