What is the phenomenon of burning cotton, wool and chemical fiber fabrics

When the wool fiber is burned, it shrinks and curls, smokes and bubbles, has the smell of burning hair, and the burning residue becomes brittle, and it is broken when pinched by hand.

Cotton fiber. When burning, it does not melt, does not shrink, has the smell of burning paper, and the residue ash is less, gray-white, and it is scattered when it is blown.

Polyester fiber, shrinkage when burning, melting, first melting and then burning, yellow flame, smoke, dripping and drawing, the residue into a glassy black-brown hard ball, not easy to crush.

Hello! Cotton and wool contain proteins, and the ash produced by burning is gone with a twist of the hand.

After the chemical fiber is burned, it forms very hard particles.

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Polyester is melted and shrunk near the flame, can continue to burn, and a few have a very weak sweet taste Hard round, black or light brown.

Wool melts away from the flame Melts and burns Hard to continue burning, will self-extinguish Burn feather smell Brittle, brittle, black.

Cotton Near-flame instant combustion Rapid continuous combustion, with afterglow Burning paper smell Very little, soft, black or gray.

Wool burning: Ignite the wool pumped out with fire, and there is a fishy smell of burning feathers and hair when burning, and it will be broken into ashes with a finger pinch after burning. When wool products are burned, they smoke and blister while burning, accompanied by the smell of singe, and there are many ashes.

When the acrylic fiber product is burned, it burns slowly while melting, the flame is white, bright and powerful, with a slight black smoke, a fishy smell, and the ash is white spherical, brittle and fragile.

Synthetic fiber combustion: no burning feathers, hair odor when burning, ash into coke and agglomerate, and not easy to crush. When the synthetic fiber product is burned, it is slowly burned while melting, and there is a slight white smoke when burning, and the flame is small and blue, with a celery fragrance, and it is a light brown hard lump after burning.

Wool is mainly made up of proteins. The use of wool can be traced back to the Neolithic Age, when it spread from Central Asia to the Mediterranean and other parts of the world, and became the main textile raw material in Asia and Europe. Wool fibres are soft and elastic and can be used to make textiles such as wool, fleece, blankets, felts, etc.

Wool products have the characteristics of plump feel, good warmth, and comfort in wearing bridge shirts.

Synthetic fiber is a synthetic linear polymer with suitable molecular weight and soluble (or fusible) properties, which is spun and formed and post-processed. These polymers with fibroforming properties are often referred to as fibroforming polymers. Compared with natural fibers and man-made fibers, the raw materials of synthetic fibers are made by artificial synthetic methods, and the production of douxiao is not limited by natural conditions.

Because when pure cotton fibers, wool fibers and synthetic fibers are burned, they emit different odors, so they can be distinguished according to these odors.

When burning, the smell of burning paper is: cotton fiber pants withered.

When burned, there is a smell of burnt hair: wool fibers.

When burned, the scented ones are usually: synthetic fibers.

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Cotton fibers: Cotton fibers are ignited just after the flame, burning quickly, the flame is yellow, and the smoke is blue. Cotton burns and emits a paper smell; After burning, the cotton has a polar type of powder ash with little powder, which is black or gray.

Wool fiber: the hair smokes when it encounters fire, foams when burning, burns slowly, emits a burning smell of burning hair, and the ashes are mostly shiny black spherical particles after burning, and the fingers are crushed as soon as they are pressed. <

Cotton fiber eggplant: Cotton fiber is just close to the flame that ignites, burns quickly, the flame is yellow, and the smoke is blue. Cotton burns and emits a paper smell; When burned, cotton has very little powder ash and is black or gray in color.

Wool fiber: the hair smokes when it encounters fire, foams when burning, burns slowly, emits a burning smell of burning hair, and the ashes are mostly shiny black spherical particles after burning, and the fingers are crushed as soon as they are pressed.

1. When burning, the smell of burning paper is: cotton fiber trembling rent stupid dimension. When burned, there is a smell of burnt hair: wool fibers.

2. Wool fiber is the first deformation of sheep, with excellent warmth, and is mostly used for clothing in autumn and winter, but it is easy to be moth-eaten.

3. The main component of cotton fiber is cellulose, and the rest is cellulose companion organisms. The content of cotton cellulose and its companions depends on the maturity of the cotton fibers.

Wool burning is a smell of burning hair, red flames, and thick smoke; The fibers have a rubbery smell and are blue in color.