浆纱时的纱线拉伸决定织造的经纱断头  

Yarn stretch at sizing decides warp breaks on weaving machines

作　　者：R.N.Narkhedkar P.V.Kadole H.Patil 曾文敏 

机构地区：[1]D.K.T.E’S纺织工程学院 [2]C.T.F

出　　处：《国际纺织导报》2014年第6期48+50-51,50-51,共3页Melliand China

摘　　要：通常纺织厂的生产能力由织机开口的效率决定,而开口效率取决于上浆织轴的质量。对原纱进行上浆加工时,纱线会受到拉伸,这是生产高质量上浆织轴需考虑的重要因素之一。张力引起的拉伸导致纱线伸长,以及纱线和纤维横截面减小,从而影响纤维强度。较高织造水平所需的高质量浆纱要求具有较高的断裂伸长率。如果断裂伸长率低于一定限度,织机上的经纱断头就将增加。为得到较高的断裂伸长率,浆纱时纱线拉伸率应尽可能小,特别是湿区的纱线拉伸率应越小越好。对不同线密度的棉纱、聚酯/棉混纺纱的纱线拉伸率、浆纱拉伸率和原纱伸长率的控制进行了研究,以降低织机上的经纱断头。Usually the performance of a textile plant is determined from the weaving machine-shed efficiency,which entirely depends upon the quality of sized beam production. During the processing of material on sizing,the yarns are stretched. This is one of the important factors to be considered in producing quality-sized beam.The stretch caused by tension leads to an increase in length and reduction in yarn as well as fiber cross-section.This phenomenon affects the strength of the fiber. The required quality-sized yarn for good weaving performance is high elongation at break. If this falls below a certain limit then the warp breaks will increase on the weaving machine. For better elongation at break the yarn stretch at sizing should be at the minimum possible level and particularly the stretch at wet zone should be as low as possible. This study mainly focused on control of stretch percent,elongation of sized yarn and un-sized yarn for reducing the warp breaks on weaving machines. The study was conducted for different counts as well as for cotton( CO) and cotton /polyester( CO /PET) blend yarns.

关 键 词：浆纱 拉伸 织造 经纱断头 

分 类 号：TS105.213[轻工技术与工程—纺织工程]