How to distinguish to distinguish different kinds of ribbon

by:BAILI     2020-11-14

how to differentiate to distinguish different kinds of ribbon? Differential fiber by combustion method is simple, but blended product is not easy to judge. From warp/weft direction ( The straight and horizontal direction) The extraction of a root yarn were burning. Will two categories ribbon of warp/weft yarn break several root, with lighter burning, burning process to observe some physical phenomena, to determine the raw materials of warp/weft yarn. To respectively on the flame combustion, melting and send out the smell, the status of the ash after burning. Here are two kinds of physical performance parameters of the combustion of ribbon material, for your reference: nylon ribbon: nearly flame combustion, shrink of molten drop and sparkling not directly continue burning like celery flavour is hard, round, light, brown to gray, bead polyester ribbon: nearly flame combustion, shrink of molten drop and foaming can continue burning, smoke a few very weak sweet hard round, dark or light brown cotton fiber and hemp fiber and hemp are just near the flame is burning, burning rapidly, flame, yellow, blue smoke. The smell of burning and after burning ashes, is the difference between the cotton paper smells like burning, burning plant ash smells; After combustion, cotton has little powder ash, a black or gray, hemp produces a small amount of ash gray powder. Second, polyamide and polyester polyamide ( Nylon) Scientific name polyamide fiber, nearly flames shot curled fused white colloidal, namely in the flame melt dripping and sparkling, burn without fire, leave the flame burning hard, sends out a celery flavour, beige molten material not easy pulverization after cooling. Scientific name dacron polyester fiber, easy to ignite, near flame namely shrinkage, melting and smoke during burning, yellow flame, fragrant smell, burning after the ashes for dark brown lump, can twist with your fingers. Three, acrylic and polypropylene ( pp) Scientific name acrylic polyacrylonitrile fiber, near fire softening melting and smoke after the fire, with a white flame, quickly after the flame burning, send out a fire to the bitter smell of meat, after burning ashes for irregular black lumps, hand twist is fragile. Polypropylene scientific name of polypropylene fiber, near flame namely shrinkage, flammable, burning slowly and smoke from the fire, flame upper yellow, bottom, blue emitting oil smell, burning ashes as hard round fawn particles, after hand twist is fragile. Scientific name four, whalen and chlorofibre whalen polyvinyl formaldehyde fiber, not easy to ignite, nearly flame melt contraction, the top is a little flame, burning for fiber blending gelatinize flame, with thick black smoke, bitter sweet smell, small black bead particles left after burning, available fingers crush. Scientific name chlorofibre PVC fiber, difficult to burn, the fire is out, the flame is yellow, the bottom green white smoke, pungent irritant spicy sour, after burning ashes for the dark brown irregular lumps, fingers twist not easily broken. Five scientific name, nylon spandex spandex and fluorine polyurethane fiber, near the fire burning, burning flame is blue, leaving the fire continues to melt, send out a special irritating odor, ashes for soft fluffy black ash after combustion. Scientific name fluorine nylon ptfe fiber, iso organization called fluorite fiber, flame only melt, difficult ignition, not burning, edge of the flame is blue, green, carbide melt and decomposition of toxic gas, melt for hard round black beads. Fluorine nylon fiber in the textile industry is often used in the manufacture of high performance sewing thread.

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