《14.6tex棉／甲壳素70／30／混纺纱工艺设计》-毕业论文.doc

PAGE w w 盐城纺织职业技术学院 毕业设计（论文） 题 目：14.6tex棉/甲壳素70/30/混纺纱工艺设计 姓 名： 学 号： 专业班级： 产纺811 指导教师： 交稿日期: 年11月21日 w 摘要 本文主要叙述了甲壳素纤维与棉混纺细特纱生产的工艺流程、相关计算和选用原料的性能指标。介绍了甲壳素纤维的特点和功能，以及选题的目的和意义。讨论了在生产中遇到的难点，并采取了相应的措施。阐述了开清棉、梳棉、并条、细纱的工艺参数的选用和成纱质量的控制。 在开清棉工序适当加重棉卷的定量；梳棉工序为解决成网、成条比较困难的问题，生条要定量控制，适当降低锡林与刺辊的转速；并条工序合理配置后区牵伸倍数，使纤维充分混合；粗纱配合较小的后区牵伸倍数和较大的粗纱捻系数，合理选定车速，保证粗纱质量，稳定粗纱生产；为提高成纱干水平，减少细节产生，细纱后区前伸倍数采用偏小配置，捻系数要偏高掌握。由于甲壳素纤维束纤维含量较高，单强偏低纤维偏粗，还要在清花工序前加入了预处理，是纤维原料充分松解，为后道工序顺利加工创造条件。 关键词：甲壳素纤维 棉纤维 混纺纱 工艺设计 作者：张曼 导师：赵磊 Abstact This paper describes the chitin fiber and cotton blended fine yarn production process, correlation calculation and the selection of raw material. Introduces the characteristics and functions of chitin fibers, and expatiates the purpose and meaning. In production are discussed, and the difficulties encountered in the corresponding measures taken. Expounds opening, cotton, spinning, and the selection of technological parameters and yarn quality control. In the opening process appropriate increase of quantitative cotton roll-the uniform, Cotton, to solve the difficult problem to the quantitative control, and appropriate to reduce cylinder and the speed of the licker in, And the reasonable configuration process after the draft, fiber area fully mixing, Roving with smaller areas after draft and larger roving twist factor, reasonable and ensure quality of roving selected speed, stable roving production.To improve the level of dry, reduce yarn spinning, after the details before the area by small stretch multiple configuration, high coefficient of twisting to grasp. Because chitin fiber bundle fiber content is higher, low intensity, and also in partial crude fibre pure flower before joining the pretreat