What are the identification methods of garment lining composition?

What are the identification methods of garment lining composition?

1、 Cotton fiber and hemp fiber

Cotton fiber and hemp fiber are all ignited immediately near the fire. The fire is light yellow and black smoke. The difference between the smell released by ignition and the embers after burning is that cotton ignites the smell of paper, and hemp burns the smell of grass ash; After ignition, cotton has very few powdery embers, which are black or dark gray, while hemp causes a small amount of gray powdery embers.

2、 Wool and silk

When Mao catches fire and smokes, he bubbles when ignited. The ignition rate is relatively slow, releasing the scorching smell of burning beautiful hair. After burning, the embers are mostly gray black spherical particles with gloss, which are broken as soon as his fingers are pressed. The real silk shrinks and agglomerates when it sees the fire, and the ignition rate is relatively slow. With the hissing sound, it releases the smell of burning hair. After burning, it turns into dark brown small spherical embers, which are broken when twisted by hand.

3、 Nylon and polyester

Nylon, also known as polyamide fiber, quickly curls up and melts into milky white colloid near the fire. It melts and burns in the fire, drops and bubbles. There is no fire when ignited, and it is difficult to ignite again when leaving the fire, releasing the smell of lettuce. After cooling, the light brown melt is not easy to smash. Polyester, also known as polyester fiber fabric, is easy to ignite. It melts and shrinks near the fire. When ignited, it melts and emits black smoke from the exhaust pipe. It shows a light yellow fire and releases a fragrant smell. The embers after burning are dark brown lumps that can be broken with fingers.

4、 Acrylic and polypropylene

Acrylic fiber, also known as polythiophene chemical fiber, softens and shrinks near the fire. After the fire, there is black smoke from the exhaust pipe. The flame is milky white. It is ignited quickly after leaving the flame, releasing the sour taste of fire barbecue. The embers after burning are irregular gray black lumps, which are easy to be broken by hand twisting. Polypropylene fiber, also known as polypropylene fiber, melts and shrinks near the fire. It is flammable. The dark fire ignites slowly and emits black smoke from the exhaust pipe. The light yellow above the fire and dark blue below release the smell of crude oil. The embers after burning are hard round light tan particles, which are easy to break by hand.

5、 Vinylon and nylon

Vinylon, acrylic acid, emulsion, chemical fiber, not easy to ignite, close to flame fusion, and ignited with a little flame at the top. When the chemical fibers are fused into a jelly flame, the smoke will be thicker and the bitter smell will be released. The remaining ash and black beads can be damaged after burning, and can be damaged by fingers. Chlorine fiber, also known as polyethylene chemical fiber, is difficult to ignite. The dark fire is extinguished. The flame is light yellow and the lower part is emerald green. It emits a strange smell of pungent and pungent food. After ignition, the embers are dark brown irregular lumps, and the fingers are not easy to break.

6、 Spandex and fluorine fiber

Spandex, also known as polyurethane chemical fiber, melts and burns near the fire. When ignited, the flame is dark blue. When it leaves the fire, it melts and burns again, releasing stimulating odor. After ignition, the ember is soft and loose ash. Fluorine fiber is also known as polytetrafluoroethylene chemical fiber. ISO organization calls it fluorite chemical fiber. It only melts near the flame, which is difficult to ignite. If it is not ignited, the edge flame is green and blue, carbonized, melted and dissolved. The vapor is harmful, and the melt is hard round black beads. Fluoro chemical fiber is commonly used in the production of sewing machine thread with good manufacturing performance in the textile industry.

7、 Viscose fiber and copper ammonium chemical fiber

Viscose fiber is flammable, with fast ignition speed. The flame is light yellow. It releases the smell of burning paper money. After burning, there is less ash, which is smooth and twisted strip light gray or gray white fine powder. Copper ammonium synthetic fiber, also known as hukapok tree, is ignited near the flame. The ignition rate is faster. The flame is light yellow and releases ester odor. There is little residual ash after burning, only a small amount of gray black ash.

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