Identification Method Of Work Clothes Fabric

At present, the quality of workwear fabrics selected by workwear manufacturers are uneven, deceiving consumers with fakes. In order for everyone to correctly identify the authenticity of work clothes fabrics, Bai Nian Laotu work clothes introduces a method to identify the authenticity of work clothes fabrics-burning method. The main procedure is to take a strand of cloth yarn-burn-smell the smell-look at the burned object to judge the authenticity of the fabric. Let's introduce it in detail below.

　　1. Cotton fiber, hemp fiber cotton, fiber and hemp fiber are all burned just near the flame, burning quickly, the flame is yellow, and blue smoke is emitted. The difference between the smell of burning and the ashes after burning is that cotton burns to give out a paper smell, while hemp burns to give off a smell of plant ash; after burning, cotton has very little powder ash, which is black or gray, and hemp produces a small amount of off-white powder ash. .

　　2. The wool fiber and the silk wool emit smoke when they are burnt, and the burning speed is slow, and the scorching smell of burning hair is emitted. After burning, the ashes are mostly shiny black spherical particles, which are broken when the fingers are pressed. The silk shrunk into a mass when it encounters fire, and the burning speed is slow, accompanied by a sizzling sound, and the hair emits a scorching smell. After burning, it forms into dark-brown ball-shaped ashes, which will shatter with hand twist.

3. Polyamide fiber, which is the scientific name of nylon and polyester nylon, quickly crimps and melts into a white gel near the flame. It melts and drips and foams in the flame. There is no flame when it burns. It is difficult to continue burning without the flame, and it smells of celery. The light brown melt is not easy to grind after cooling. The scientific name of polyester is polyester fiber. It is easy to ignite and melts when it is near the flame. When it burns, it emits black smoke while melting. It shows a yellow flame and gives off a fragrant smell. After burning, the ashes are dark brown lumps, which can be broken with fingers.

4. The scientific name of polypropylene acrylic fiber is polyacrylonitrile fiber. It softens and shrinks near fire. It emits black smoke after fire. The flame is white. After leaving the flame, it burns quickly. It gives off a bitter smell of burning meat. After burning, the ashes are irregular black-colored lumps. Hand twist is fragile. The scientific name of polypropylene is polypropylene fiber, which melts near the flame and is flammable. It burns slowly away from the fire and emits black smoke. The upper end of the flame is yellow and the lower end is blue, with a smell of petroleum. The ashes after burning are hard round light yellow-brown particles, easy to twist by hand. broken.

The scientific name of vinylon and vinylon vinylon is polyvinyl formal fiber. It is not easy to ignite. It melts and shrinks near the flame. When burning, there is a little flame at the top. When the fiber is melted into a gelatinous flame, the flame becomes larger, with thick black smoke and a bitter aroma. After burning, small black beads are left, which can be crushed with fingers. The scientific name of polyvinyl chloride fiber is polyvinyl chloride fiber. It is difficult to burn and extinguishes when you leave the fire. The flame is yellow with green white smoke at the bottom. It has a pungent, pungent and sour smell. After burning, the ashes are dark brown irregular lumps, and the fingers are not easy to twist.