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Fabric Identification Method
- Jul 31, 2018 -

First, cotton fiber and hemp fiber

Both cotton fiber and hemp fiber are burning near the flame, burning rapidly, the flame is yellow, and blue smoke is emitted. The difference between the odor of burning and the ash after burning is that the cotton burns to emit a paper odor, and the numbness emits a ash ash; after burning, the cotton has very little powder ash, which is black or gray, and the hemp produces a small amount of grayish white ash.

Second, wool fiber and silk

When the hair meets the fire and smokes, it foams when burned, and the burning speed is slow. It emits the burnt smell of burnt hair. After burning, the ash is mostly shiny black spherical particles, and the fingers are crushed. The silk huddled in a fire, and the burning speed was slower, accompanied by a squeaking sound, which gave off the burning smell of the hair. After burning, it formed a dark brown globular ash, and the handcuffs were broken.

Third, nylon and polyester

The polyamide fiber of nylon name is rapidly curled and melted into a white gel. It melts and blisters in the flame, and there is no flame when burning. It is difficult to continue burning after leaving the flame, emitting celery flavor, and light brown melting after cooling. Things are not easy to break. Polyester fiber name is easy to ignite. It is melted near the flame. When burning, it emits black smoke when it melts. It has a yellow flame and emits an aromatic odor. After burning, the ash is a black-brown hard block, which can be broken with fingers.

4. Acrylic and polypropylene

Acrylic fiber name polyacrylonitrile fiber, near fire softening and melting, black smoke after the fire, the flame is white, burning quickly after the flame, emitting the bitter smell of fire meat, after burning, the ash is irregular black lumps, handcuffs are brittle . Polypropylene fiber, polypropylene fiber, near the flame is melted, flammable, burning slowly from the fire and black smoke, the upper end of the flame is yellow, the lower end is blue, emitting oily smell, after burning, the ash is hard round light yellow brown granules, hand easy broken.

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