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Industry Information
Fabric knowledge and identification
ClassIndustry Information Time2014/3/14 10:49:05
A simple method for identification of clothing material composition is combustion method. Practices in the garment seams side under a wisp of smoke contains the warp and weft yarn cloth, the light with fire, observe the state of combustion flame, smell the fabric yarn after burning smell, see the residue after combustion, so as to determine fabric content annotation and durability on the label to identify whether conform to, fabric composition of authenticity.
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 is the difference between a paper, cotton burning smell, Ma sent burning ash after burning smell; cotton, there are very few powder ash, black or grey, Ma has a few grey white powder.
Two, wool and silk
Hair Yuhuo smoke when burning, blisters, slower burning, burning hair exudes burnt smell, after burning to ashes black spherical particles with shiny, finger pressure is broken. Silk fire shrink into ball shape, a slower burning, accompanied by a hissing sound, emitting a smell burning hair have a fever, a dark brown small spherical ashes, hand twist is broken.
Three, nylon and polyester
Nylon name polyamide fiber, near the flame 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, after cooling the melt is not easy to light brown. Pet name of polyester fiber, easy ignition, flame is nearly collapsing, combustion boundary melting edge smoky, yellow flame, fragrant smell, after burning ashes to dark brown lumps, fingers can be fine.
Four, acrylic and polypropylene
Acrylic name polyacrylonitrile fiber, near fire softening melting contraction after the fire, smoke, flame was white, from the rapid combustion flame, emitting a smell of burning flesh of bitterness, after burning ashes for irregular black lumps, hand twist fragile. Polypropylene name polypropylene fiber, near the flame collapsar, flammable, away from the fire burns slowly and the black smoke, the flame is yellow, the lower blue, exudes a smell of oil, after burning to ashes as hard round brown granules, hand twist fragile.
Five, polyvinyl alcohol and polyvinyl chloride
Vinylon polyvinyl formal fiber name, not easy to ignite, burning near flame melting shrinkage, top has a fire, the fibers are merged into larger colloidal flame, with thick smoke, emit sweet smell, burning left after black bead shaped particles, fingers can be crushed. Polyvinyl chloride PVC fiber name, difficult to burn, the fire is out, the flame is yellow, the lower green white smoke, pungent spicy stimulate the dissemination of sour, after burning ashes to dark brown irregular lump, the fingers are not easy to crush.
Six, 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 the burning ashes for soft fluffy black ash. Teflon PTFE fiber name, ISO organization called fluorite fiber, flame only near the melting, difficult to ignite, not combustion, the flame was blue and 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.
Seven, viscose fiber and copper ammonia fibre
The flammability of the viscose, burning speed is very quick, the flame is yellow, with burning smell, burning less ash, a smooth twisted strip light gray or grayish white powder. Cuprammonium fibre from polynosic, near the flame burning, burning rate, the flame is yellow, sporadic ester sour, after burning to ashes rarely, only a small amount of gray ash.