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Distinguish the ribbon of method

Category:Industry News Publish:2013-3-21 11:42:18 Browse:2755 [Back]
Two kinds of unknown categories ribbon warp yarn and number of roots, respectively, with a lighter combustion, the observation of some physical phenomena in the combustion process, to determine the warp and weft yarn material. When you were on the flame combustion, melting and smell, ash after combustion condition were observed.
Below is the combustion physical parameters of two types of woven material, for your reference:
Nylon webbing: near the flame is burning and collapsing melting, dripping bubble does not directly continued burning like celery taste hard, round, light, brown to gray, bead
Polyester ribbon: near the flame is burning and collapsing melting, dripping bubble can continue to burn, there are a few sweet smoke very weak hard round, dark or light brown
A, cotton fiber and hemp fiber
Cotton fiber and hemp fiber is just near the flame is burning, fast combustion, the flame is yellow, blue smoke. Two in the burning smell and after burning to ashes difference is burning smell, cotton paper, linen burn ash after burning smell;, cotton with few powder ash, a black or grey, hemp is produced a few grey white powder.
Two, nylon and polyester
Polyamide (nylon) name of polyamide fiber, near the flame is rapidly kink fused white glue in the flame burning, melting dropping and blistering, burning no flame, left to continue burning flame, emitting a celery flavor, cool light brown molten material is not easy to crush.
Polyester or polyester fiber, easy ignition, flame is nearly collapsing, combustion while melting edge smoky, yellow flame, fragrant smell, after burning ashes to dark brown lumps, fingers can be crushed.
Three, acrylic and polypropylene (PP)
Acrylic name polyacrylonitrile fiber, heat softening collapsar, fire smoke, flame is white, away from the flame burning rapidly, emitting a bitter smell of burning flesh, after burning ashes for irregular black lumps, hand twist.
Polypropylene or polypropylene fiber, near the flame is collapsing, flammable, away from the fire burns slowly and black smoke, the upper end of the lower end of the flame yellow, blue, emitting a smell of oil, after burning to ashes as hard round brown granules, hand twist.
Four, polyvinyl alcohol and polyvinyl chloride
Vinylon generic formal fiber, not easy to ignite, burning near the flame melting shrinkage, top has a fire, the fibers are gelatinized flame becomes larger, with thick smoke, emit sweet smell, burning left small black bead particles, the finger can crush.
This name PVC fiber, difficult to burn, the fire is out, the flame is yellow, green white smoke, pungent spicy stimulate the dissemination of sour, after burning ashes to dark brown irregular lumps, the fingers are not easy to crush.
Five, spandex and Teflon
Spandex name polyurethane fiber, near the fire edge fusion burning, burning flame is blue, leaving the fire continued to molten fuel, emitting a special pungent odor, after burning ashes for soft fluffy black ash. Teflon PTFE fiber name, ISO organization called fluorite fiber, near the flame only melt, difficult to ignite, not combustion, the flame was blue-green edge carbonization, melting and decomposition, poisonous gas, melt into hard round black pearl. Teflon fiber used in the textile industry in the manufacture of high performance of sewing thread.
The combustion method for identification of fibers is simple, but not easy to judge the blended products. From the latitude and longitude direction (i.e., vertical and horizontal direction) from each one yarn were burning phase.
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