运用柔软性黏合剂ST310的整理,通过滚筒式烘干机烘干和平板压烫机的热压,以改善单纱在针织横机上编织的单边毛衫扭骨现象.结果表明:黏合剂ST310最佳用量是3.3％,在压力0.30 MPa和压烫时间1.8 min、压烫温度132℃下发生交联反应,在压力的加持下,纱线由圆形变成扁平状,形成立体网状薄膜使毛羽相互固着,增加纤维间的摩擦力,稳定纱线的捻度,扭骨从20.60％改善到0.56％;经处理后手感软滑,色牢度及起毛起球性能都有半级提升,顶破强力由389 N提升到412 N.
Improvement of Woolen Sweater Weft Skew
The weft skew of single yarn knitted on flat knitting machine was improved by using adhesive ST310 finishing through the drum dryer drying and flat plate pressing machine.The testing results show that the best dosage of adhesive ST310 is 3.3％,the pressure is 0.30 MPa and the pressing time is 1.8 minutes.Crosslinking reaction occurs at pressing temperature of 132 ℃.Under the pressure,the yarn changes from round to flat,forming a three-dimensional network film,fixing the hairiness to each other,increasing the friction between the fibers,stabilizing the twist of the yarn,and improving the weft skew from 20.60％to 0.56％.After treatment,the handle feels soft and smooth,the color fastness and fuzzing and pilling performance are improved by 0.5 grades,and the bursting strength is increased from 389 N to 412 N.
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