How to identify the material of the webbing

Update:16-03-2022

To identify the material of the webbing, an experienced person will know what the material of the webbing is, the approximate width and thickness of the webbing when they touch the webbing. However, as a newcomer who has just stepped into the webbing industry, to achieve such a level obviously depends on the accumulation of experience. The methods of identifying the ribbon are: touch (the feel of the ribbon), observe its color, burn and other methods.

Touch method: nylon or nylon material webbing feels soft, smooth, bright color, good gloss, light material; polypropylene (PP) material webbing feels hard, rough, and has poor gloss; polyester material webbing color is relatively rigid, But the color fastness is good, and the specific gravity is heavier; polyester staple yarn (also known as polyester civil yarn, commonly known as polyester cotton) has a similar feel to that of cotton, and is soft to the touch.

Burning method: Ignite it with fire, observe the state of the burning flame, smell the smell after burning, and see the residue after burning, so as to judge the material of the webbing.

1. Cotton fiber and hemp fiber
Both cotton fibers and hemp fibers are 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 the burning of cotton gives off the smell of paper, and the burning of hemp gives 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. Nylon and polyester
Nylon (nylon) scientific name is polyamide fiber, it crimps and melts into a white gel quickly near the flame, it melts and drips and bubbles in the flame. The light brown melt is not easily ground.
The scientific name of polyester is polyester fiber. It is easy to ignite, and it melts near the flame. When burning, it melts and emits black smoke. It has a yellow flame and emits a fragrant smell.

3. Vinylon and Chlorine
The scientific name of 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 jelly, the flame becomes larger, there is thick black smoke, and it emits a bitter smell. After burning, it remains black. Small bead-like particles that can be crushed with fingers.
The scientific name of polyvinyl chloride fiber is polyvinyl chloride fiber. It is difficult to burn, and it will be extinguished immediately after leaving the fire. The flame is yellow, and the lower end is green and white smoke.

Fourth, acrylic and polypropylene (PP)
The scientific name of acrylic fiber is polyacrylonitrile fiber. It softens and shrinks near fire, emits black smoke after ignition, and the flame turns white. .
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. Spandex and Fluorine
The scientific name of spandex is polyurethane fiber. It burns while melting near the fire. When burning, the flame is blue. When it leaves the fire, it continues to melt and burn, giving off a special pungent odor. After burning, the ashes are soft and fluffy 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 textile industry to make high-performance sewing threads.
It is simple and easy to identify fibers by the combustion method, but it is not easy to judge the blended products. It is necessary to extract one yarn from each of the warp and weft directions (ie, the straight and horizontal directions) and burn them separately.

0
Contact Us