Recently, some manufacturers of fabrics and workwear sold on the market did not standardize the labeling of the names and contents of fabric components, resulting in unscrupulous merchants taking the opportunity to deceive consumers by pretending to be shoddy and fake. In order to help consumers accurately identify the main real components of workwear fabrics, here is an introduction to simple identification common sense for consumers to refer to when purchasing workwear.

An easy way to identify the composition of workwear fabrics is the burning method. The method is to draw a yarn containing warp and weft yarns at the seam of the work clothes, ignite it with fire, watch the state of the burning flame, listen to the smell of the yarn after burning, and see the residue after burning, so that Infer whether the fabric composition marked on the durability label of the workwear matches the fabric composition to identify the authenticity of the fabric composition.

1. Cotton fiber and hemp fiber Cotton fiber and hemp fiber are both flammable when they are close to the flame, burning rapidly, the flame is yellow, and blue smoke is emitted. The difference between the odors emitted by the two during combustion and the ashes after burning is that cotton burns to give off the smell of paper, while hemp burns to give off the smell of plant ash; after burning, cotton has very little powder ash, which is black or gray, while hemp produces a small amount of off-white powder ash.

2. Wool fiber and silk wool emits smoke when exposed to fire, foams when burned, burns at a slow speed, and emits a burnt smell of burning hair. When exposed to fire, the silk shrinks into a ball, and the burning speed is slow, accompanied by a sizzling sound, exuding a burning smell of hair, and after burning, it forms black-brown spherical ashes, which are broken when twisted by hand.

3. The scientific name of nylon and polyester nylon is polyamide fiber. Near the flame, it quickly curls and melts into a white gel. It melts and drips and foams in the flame. There is no flame when burning, and it is difficult to continue to burn when it leaves the flame. The light brown melt was not easily ground after cooling. The scientific name of polyester is polyester, which is easy to ignite. It melts when it is close to the flame. When it is burned, it melts and emits black smoke. It has a yellow flame and emits a fragrant smell.

Fourth, polyacrylonitrile fiber and polypropylene polyacrylonitrile fiber scientific name polyacrylonitrile fiber, softening and shrinking near fire, black smoke after fire, white flame, burning quickly after leaving the flame, emitting the bitter and sour smell of burning meat, after burning The ashes are irregular black lumps that are brittle when twisted by hand. The scientific name of polypropylene fiber is polypropylene fiber. It melts near the flame and is flammable. It burns slowly and emits black smoke from the fire. The upper end of the flame is yellow and the lower end is blue. broken.

5. The scientific name of vinylon and vinylon is polyvinyl formal fiber, which is not easy to ignite, melts and shrinks near the flame, and there is a little flame at the top when burning. When the fibers are melted into a jelly-like flame, the flame becomes larger, with thick black smoke and a bitter smell. , after burning, black bead-like particles remain, which can be crushed with fingers. The scientific name of polyvinyl chloride is PVC fiber. It is difficult to burn. It will be extinguished immediately after leaving the fire. The flame is yellow, and the lower end is green and white smoke. It emits a pungent, pungent, and sour smell.

Six, spandex and fluorine spandex scientific name polyurethane fiber, close to the fire and burning while melting, the flame is blue when burning, leaving the fire to continue melting and burning, emitting a very pungent odor, after burning the ashes are soft and loose black Ash. The scientific name of fluorine is polytetrafluoroethylene fiber, which is called fluorite fiber by the ISO organization. It only melts near the flame, is difficult to ignite, and does not burn. The edge flame is blue-green carbonized, melted and decomposed, the gas is poisonous, and the melt is hard and round black. beads. Fluorocarbon fibers are commonly used in the fabric industry to make high-performance sewing threads.

7. Viscose fiber and cuproammonium fiber Viscose fiber is flammable, burns very fast, the flame is yellow, the smell of hot paper is dissipated, the ashes are few after burning, and it is a smooth, twisted ribbon-shaped light gray or gray-white fine powder. Copper ammonium fiber, commonly known as tiger kapok, burns near the flame, the burning speed is fast, the flame is yellow, and the ester acid smell is emitted.