HEAT, AIR AND WATER VAPOR TRANSFER PROPERTIES OF CIRCULAR KNITTED SPACER FABRICS

Year 2011, Volume: 21 Issue: 4, 369 - 373, 30.12.2011

Gözde Ertekin Arzu Marmaralı

Abstract

Spacer fabrics are 3D textile structures formed of two fabric layers combined by a spacer yarn or layer. The production method of spacer fabrics produced in circular knitting machines is based on the connection of two fabric layers knitted in cylinder and dial with tucks. In this study, thermal comfort properties of fabrics which are produced in three different dial heights and two different spacer yarn on circular knitting machine by using spacer fabric production method were investigated. It is observed that, fabric weight, thermal conductivity, thermal resistivity, air permeability and relative water vapor permeability properties are affected by dial height and the type of spacer yarn significantly.

Keywords

Spacer fabrics, Circular knitting, Dial height, Spacer yarn, Thermal comfort

YUVARLAK ÖRME SANDVİÇ KUMAŞLARIN ISI, HAVA ve SU BUHARI TRANSFER ÖZELLİKLERİ

Abstract

Sandviç tekstiller iki kumaş tabakasının bir bağlantı ipliği veya tabakası ile bağlanması sonucu elde edilen üç boyutlu yapılardır. Yuvarlak örme makinelerinde sandviç kumaş üretimi, silindir ve kapak iğneleri tarafından örülen iki kumaş tabakasının, bağlantı ipliklerinin her iki yatakta askı yapması ile birleştirilmesi esasına dayanır. Bu çalışmada yuvarlak örme makinelerinde sandviç kumaş üretim tekniği ile üç farklı kapak yüksekliğinde ve iki farklı bağlantı ipliği ile üretilen sandviç kumaşların fiziksel ve ısıl konfor özellikleri incelenmiştir. Araştırma sonucunda kapak yüksekliği değişiminin ve bağlantı iplik tipinin kumaşların gramaj, ısıl iletkenlik, ısıl direnç, hava geçirgenliği ve bağıl su buharı geçirgenliği özellikleri bakımından farklılık yarattığı tespit edilmiştir.

Keywords

Sandviç kumaşlar, Yuvarlak örme, Kapak yüksekliği, Bağlantı ipliği, Isıl konfor

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