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

Guangdong Instltute of Textile Technolegy Fiber Properties and Identification 0Mechanical properties Tensile properties Tensile deformation

Guangdong Instltute of Textile Technolegy Justification Textile materials are the basic materials. It is crucial to establish a basic understanding of the science governing the behavior of these materials. The course is taught in a bilingual system such that the students will have an opportunity to enhance their English ability while learning the key knowledge in textiles

一、纺织纤维鉴别的基础知识 二、纺织纤维的鉴别新技术 三、纺织纤维鉴别实验

本章主要内容 纺织材料的热学性质 导热与保温、热转变点、阻燃性与抗熔性、热 膨胀与热收缩、热塑性与热定型、耐热性与热稳定性等性质

织物风格的定义 从广义来说应是人们综合触觉、视觉以至 听觉等方面对织物品质的评价。它有棉 型感、毛型感、丝型感、麻型感的区别 。狭义的织物风格与产品的外观、服用 舒适性等有较密切的关系

一、原棉的品质检验与评定 二、本色棉纱线的品质检验与评定 三、本色棉布与印染布的品质检验与评定

一、织物外观保持性 二、织物的尺寸稳定性 三、织物的透通性