Identification of fabric composition authenticity

The easy way to identify the composition of clothing fabric is the burning method. The method is to pull a cloth yarn containing warp and weft at the seam of the garment, ignite it with fire, observe the state of the burning flame, smell the smell of the cloth yarn after burning, and observe the residue. Burn to judge whether it is consistent with the fabric composition marked on the clothing durability label to distinguish the authenticity of the fabric composition.

1. Cotton fiber and hemp fiber

Cotton fiber and hemp fiber burn immediately after burning, burning quickly, the flame is yellow and blue smoke. The difference between the smell after burning and the ashes after burning is that the cotton burns off the smell of paper, while the hemp burns off the smell of grass and trees. After burning, cotton has little gray-black or gray ash, while hemp produces a small amount of gray-white ash.

2. Wool fiber and silk

Mao burns smoke when it burns, blisters when it burns, burns slowly, and emits the smell of burning hair. After burning, the ashes are mostly smooth black spherical particles that break fingers when pressed. After firing, the silk will shrink into clumps, burning slowly, accompanied by a hissing sound, emitting a burning hair smell, after burning, it will form a black brown spherical ash, which will be broken by hand.

3. Nylon and polyester

Polyamide fiber (the scientific name for polyamide fiber) rapidly shrinks and melts into a white gel when it approaches a flame. It melts and drips in flames and blisters. There is no flame when burning. It is difficult to continue burning after leaving the flame. It smells of celery. Things don't break easily. Polyester fiber, scientifically known as polyester fiber, is easy to ignite. It melts and shrinks as it approaches the flame. When it burns, it emits black smoke and a yellow flame when it melts. It gives off a fragrant smell. The burned ashes are dark brown lumps that can be twisted with your fingers.

4. Acrylic and polypropylene

The scientific name of acrylic fiber is polyacrylonitrile fiber. It softens and shrinks near the fire. It emits black smoke after the fire. The flame is white. It burns quickly after leaving the flame and emits a burning bitter taste. After burning, the ashes are irregular black lumps. It is fragile to twist. Polypropylene, the scientific name of polypropylene, melts and shrinks near the flame. It is flammable. It burns slowly in the fire and emits black smoke. The upper end of the flame is yellow and the lower end is blue, which emits the smell of oil. The ash after burning It is a hard round light yellow-brown particle, which is easy to twist and break.

5. Vinylon and Chlorine

The scientific name of the Vinylon is polyvinyl formal fiber, which is not easy to burn. The nearby flame melts and shrinks. When burning, there is a little flame at the top. When melting, the flame becomes larger, with thick black smoke, smell and bitter taste. Black beads after burning Particles can be crushed by fingers. Polyvinyl chloride fiber (the scientific name for chloroprene) is difficult to burn and extinguishes immediately after fire. The flame is yellow with green and white smoke at the bottom. It gives off a pungent, pungent and sour taste. After burning, the ash is a black-brown irregular mass.

6. Stop Lon and Fluorine

Stalon (the scientific name for Stalon) burns when it burns close to a fire. The flame is blue when burning. When it leaves the fire, it will continue to burn and emit a special pungent smell. After burning, the ashes are soft, fluffy black ash. Fluorocarbon, scientific name ptfe fiber, iso organization calls it fluorite fiber. It only melts near the flame, is difficult to ignite, and does not burn. The edge flame is blue-green carbonization, melts and decomposes, the gas is toxic, and the melt is hard round black beads. Fluorine fibers are commonly used in the textile industry to produce high-performance sewing threads.

7. Viscose fiber and cuprammonium fiber

Viscose fiber is flammable, burns fast, and the flame is yellow, giving off the smell of burning paper. After burning, the ash is small, smooth, twisted, light gray or gray white fine powder. Copper ammonium fiber, commonly known as tiger kapok, burns near the flame, burning fast, the flame is yellow, and it emits a taste of ester and acid. After burning, there is little ash, only a small amount of gray black ash. 57.