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ABSTRACT
The effects of chenille yarn properties-pile material type, pile length, and twist level-on the boiling shrinkage behavior of chenille yarns are examined in this study. Different chenille yarns are produced on a chenille machine using a range of pile material types, twist levels, and pile lengths. Nm 4 and Nm 6 count chenille yarns are produced from different pile materials of viscose, acrylic (0.9 dtex), acrylic (1.3 dtex), combed cotton, carded cotton, and open-end cotton, in two different pile lengths of 0.7 and 1.0 mm and two different twist levels of 700 and 850 T/m. The results indicate that pile material types, pile lengths, and twist levels have significant effects on the boiling shrinkage of chenille yarns.
Chenille is a fancy yarn that is currently in great demand by fabric designers. Chenille yarns have a wide range of applications ranging from knitwear, blankets, and area rugs to furnishing fabrics and car interiors.
A chenille yarn consists of short lengths of spun yarns or filaments that are held together by two ends of a highly twisted, fine, strong yarn. The short lengths are the pile and the highly twisted yarns are the core. The result is a yarn with a velvet-like or pile surface [2].
During manufacture, the pile yarns are wrapped around a short stem of polished metal, called a caliper or gauge, through which a blade passes to cut the pile yarns into short lengths. The core yarns are pressed onto the short lengths with a rotating wheel [4]. The resulting yarn is then fed onto a traditional ring twisting take-up mechanism. In the twisting process, two ends of core yarns twist and trap the short ends of the pile. Chenille yarn count is determined by the count of the core and pile yarns, the number of pile yarns, the gauge size, and the pulley diameter. The gauge size determines the pile length, while the pulley diameter determines the pile density.
Due to chenille yarn properties and fabric construction, yarn slippage and pile loss are the main problems of chenille upholstery fabrics. Recently, several researchers attempted to determine the effects of yarn structure on abrasion characteristics. They found that chenille yarn material and twist affect the pile loss of the yarns. [4-78]....