women jeans Guangdong Merican Industrial Co.,Ltd , https://www.gdmerican.com
1 There is a strong burning odor. The ash is black and loose. It is pure wool or silk. The hair is short fiber. The silk is long fiber and can be distinguished from the appearance.
2 Burning odor, grayish white powder, Qinghe cashmere, woolen blended fabric.
3 Burning odor, ash is a harder ball, a blended or interwoven fabric of wool and synthetic fibers.
4 It has neither burning nor burning odor, but other special odors. The ash is hard and spherical or lumpy. It is synthetic fiber pure spinning or blended fabric.
With the gradual emergence of woolen products, there are many kinds of yarns on the market, so long as a few wools are drawn from them, they can be identified through burning.