破坏成品或面料的表面,使其具有不完整、 无规律或破烂感等特征。如:抽丝、镂空、 烧花、烂花、撕、剪切、磨洗

一、课程培养目标 培养掌握各种纺织材料基本结构、物理性质及其工艺意义、指标、测试方法;熟悉试 验仪器工作原理和影响因素;了解纤维、纱线、织物基本结构与物理性质的内在联系的, 能够进行纺织材料实验、检验和鉴定的纺织材料专业人员

一、概念题(15分) 1、羊毛缩绒性:在湿热或化学试剂条件下,羊毛纤维或织物鳞片会张开,如同 时加以反复摩擦挤压,由于定向摩擦效应,使纤维保持指根性运动,纤维纠缠 按一定方向慢慢蠕动。羊毛纤维啮合成毡,羊毛织物收缩紧密,这一性质成为 羊毛的缩绒性

一、概念题(15分) 规则的沿长度方向不断改变旋向的螺旋形扭曲,称为。棉 1、羊毛的缩融性:

第一章 1纺织纤维应具备哪些基本条件? 2.名词解释:纤维、纺织纤维、天然纤维、化学纤维、再生纤维、合成纤维等 3列出纺织纤维的分类表

Guangdong Instltute of Textile Technolegy Island in sea Manufacturing process Suspension of droplets of one component in matrix of the other Two components should have similar melting temperatures Can make composite fiber

Guangdong Institute of Textile Technolegy Outline gCarbon fibers 0Glass fibers 0Aramid fibers Ultra High Modulus Polyethylene fibers

Guangdong Instltute of Textile Technolegy Introduction Fibers in which forming substance is cellulose acetate where not less than 92% of hydroxyl groups are acetylated: replacing -OH groups with -COCH3. Acetate: 2 of 3 -0H groups in each 6- member ring are acetylated; ~2.5 Triacetate: Nearly all -OH groups are replaced 2.91~2.96

Guangdong Inatitute of Textile Technolegy Introduction The larva of certain insects for use in their building webs, climbing ropes and cocoons 0Spiders 0Commercial silk industry: use larva of silkworm o Application: Mostly apparel, was also used for parachutes

Guangdong Institute of Textile Technolegy Structures of wool fibers Submicrostructure Cotex core of the wool fiber: 90% of the fiber volume, consists of countless long, spindle-shaped- cells held together by intercellular cement