一区二区三区在线观看视频,欧美xxxx色视频在线观看免费,六月婷婷久久,axhd国产馆入口,国产婷婷色,亚洲色在线视频,中文乱码在线视频

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.


福建省| 海盐县| 合作市| 黎城县| 兴文县| 浪卡子县| 巴塘县| 澄迈县| 宕昌县| 开化县| 青龙| 文昌市| 岗巴县| 江华| 常州市| 友谊县| 慈利县| 黔西| 正镶白旗| 晴隆县| 通河县| 吴忠市| 岫岩| 广安市| 台山市| 同德县| 三台县| 铜梁县| 虞城县| SHOW| 施甸县| 南昌县| 南华县| 汽车| 永吉县| 台州市| 尚志市| 京山县| 深圳市| 鹿邑县| 滦南县|