亚洲在线一区_麻豆视传媒精品AV_69超碰_国产精品午夜未成人免费观看_97射射_欧美熟妇喷潮xxxx

Online Sevice

  • Nantong YUEYE Textile Co., Ltd.
  • Tel:0086-513-85261533 
  • Fax:0086-513-85261511
  • ADD:No,1111 Taiping Road(N),Guanyin Shan Street,Nantong Jiangsu.China
  • E-mail:gjx@jsyyfz.com

Method of identification of pure wool fabrics
2015-01-13 00:00:00

methods


Sense of touch. Pure wool fabrics usually feel smooth, long wool fabrics along with the feel of smooth, reverse hair tingling. And blended or pure chemical fiber, some less soft, some too soft and loose, and sticky feeling.


The colour and lustre. The color of pure wool fabric is soft and natural, bright and timeless. In contrast, blended or pure chemical fiber fabrics, or luster is darker, or have a sense of flash.


The elastic. Hold the fabric tightly by hand, then release it immediately to see how elastic the fabric is. Pure wool fabric rebound rate is high, can quickly restore to its original state, and blend or chemical fiber products, wrinkle resistance is poor, most of the more obvious wrinkle marks, or slow recovery.


Combustion identification. Take a bunch of yarn, use fire, pure wool fiber smell like burning hair, chemical fiber smell like burning plastic. The harder the particles are after combustion, the more chemical fiber components there are.


Single root identification. Hair under a microscope to see all the animals have scales, if is long hair fabrics as long as take a hair like above laid a few times will move up or down (to master this skill can take a hair from the first experiment), if it is a normal fabric, extracting a root yarn, cut 2 cm of the two paragraphs into one fiber under the hand rub four or five, they would not move.


主站蜘蛛池模板: 亚洲成人免费在线观看 | 久久亚洲视频 | 亚洲国产成人久久综合区 | 亚洲一区二区三区中文字幕在线 | 国产免费伦精品一区二区三区 | 一区二区三区视频在线 | 国产精品一级香蕉一区 | 久久99亚洲精品久久99 | 日本伦理一区二区三区 | 国产精品日本一区二区在线播放 | 曰韩人妻无码一区二区三区综合部 | 国产精品丝袜久久久久久消防器材 | A国产精品手机在线 | 国产一级毛片视频 | 久久精品中文字幕人妻 | 国产精品一级二级在线观看 | 久久6热最新地址 | 精精国产xxxx视频在线野外 | 国产一区二区免费看 | 久久久久性色Av毛片特级 | 国产三级午夜理伦三级最新章节 | 夜夜春亚洲嫩草一区二区 | 国产精品久久久久久久久久综合 | 久久综合精品国产丝袜长腿 | 黄站在线观看 | 男女无套内射白将在线线国语 | 91精品在线免费观看 | 日韩1区2区3区 | 1000部精品久久久久久久久 | 成人拍拍拍免费视频网站 | 日韩爱爱免费视频 | 91精品久久久久久久久久 | 国产精品美女久久久久久久久久久 | 亚洲日韩在线中文字幕线路2区 | 国产性夜夜春夜夜爽有声小说 | 亚洲VA久久久噜噜噜久久无码 | 国产男女爽爽爽 | 日韩欧美亚洲国产ay | 天堂综合网久久 | 黄网91 | 亚洲精品久久久蜜桃 |