Knowledge Of Surface Accessories: How To Distinguish The Composition Of Clothing Fabrics

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< p > identification of < a target= "_blank" href= "http://www.91se91.com/" > dress less than /a > the simplest method of fabric composition is combustion.

The practice is to draw a strand of yarn containing warp and weft at the edge of the garment, ignite it with fire, observe the state of the burning flame, smell the smell after the burning of the yarn, and see the residue after burning, so as to judge whether the fabric composition marked on the clothing durability label is consistent, so as to distinguish the authenticity of the fabric composition.

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< p > > a href= "http://www.91se91.com/news/" > hemp < /a > cotton fiber and hemp fiber are just near the flame, burning rapidly, the flame is yellow, emitting blue smoke.

The difference between the two odours and the ashes after burning is that the burning of cotton gives out the smell of paper, and the burning of wood gives off the smell of grass and ashes. After burning, cotton has very little powder ashes, black or gray, and a small amount of ash and ashes.

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< p > wool and silk wool smoke when they are caught in fire. When they burn, they burn up and burn slowly, giving off the burning smell of burning hair. After burning, most of the ashes are glossy black globular particles, and fingers press and crush.

Silk shrunk into a group like fire, slow burning speed, accompanied by a sizzling sound, emitting hair fever and coke, after burning into black brown small ball ash, hand twisting.

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< p > > a href= "http://www.91se91.com/news/index_c.asp" > nylon < /a > and polyamide polyamide fiber polyamide fiber, near flame is rapidly curled into white colloid, burning and dropping in the flame and bubbling, burning without flame, leaving the flame difficult to continue to burn, emitting the celery flavor, cooling the light brown melt is not easy to crack.

Polyester fiber name is polyester fiber, easy to ignite, near the flame that melt shrinkage, burning when melting black smoke, a yellow flame, emitting aromatic odor, burned black brown hard lump, with fingers can be twisted.

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< p > acrylonitrile acrylic fiber and polyacrylonitrile polyacrylonitrile polyacrylonitrile fiber, which melted and melted near the fire, ignited black smoke after burning. The flame was white, burning rapidly from the flame, emitting the bitterness smell of burning meat, burning ashes for irregular black hard lumps, hand twisting and fragile.

Polypropylene fiber is known as polypropylene fiber, which is near flame, which is melted and flammable. It is flammable. It burns slowly from the fire and smoked black. The flame is yellow at the top and blue at the bottom, emitting oil smell. The burnt ashes are hard round brown, and the hands are twisted and fragile.

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< p > polyvinyl formal fiber, the name of vinylon and polyvinyl chloride, is not easy to ignite. The flame is melted and contracted near the flame. When it burns, there is a little flame at the top. When the fiber is melted into a jelly flame, it has a thick black smoke and a bitter smell. After burning, the black bead shaped particles can be left and can be crushed by fingers.

The polyvinyl chloride fiber, known as the polyvinyl chloride fiber, is difficult to burn. It is extinguished from fire. The flame is yellow, and the lower part is green and white. It gives off pungent, pungent, sour taste. After burning, the ashes are dark brown, irregular hard lumps, and fingers are not easy to twist.

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< p > polyamide fiber and spandex, the name of polyurethane fiber, near the edge of the fire edge burning, the flame is blue when burning, leaving the fire to continue to melt, emitting a special pungent odor, burning after the ash is soft fluffy black ash.

Polytetrafluoroethylene fiber, called I S O, is called fluorite fiber, which is only melting near flame. It is hard to ignite and does not burn. The edge flame is blue-green and carbonized and melted and decomposed. The gas is poisonous, and the melting material is hard round black bead.

Fluorine fiber is commonly used to manufacture high-performance sewing thread in < a target= "_blank" href= "http://www.91se91.com/" > textile < /a > industry.

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< p > viscose fiber and copper ammonium fiber viscose fiber is flammable, burning fast, the flame is yellow, emitting burning paper smell, burning less ash, a smooth twisted strip gray or gray white fine powder.

Cuprammonium fiber, commonly known as tiger kapok, burns near flame, burning fast, flame yellow, emitting acid taste, burning little ash, only a small amount of gray ash.

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