In recent years, due to the market sales of some fabric products and workwear manufacturers of fabric composition name and content labeling is not standardized, resulting in unscrupulous businessmen to take advantage of the opportunity to fill the good with the bad, fake with real, to deceive consumers. In order to assist consumers to accurately identify the main true composition of the workwear fabric, now Daxing introduced a simple identification of common sense for consumers to purchase workwear reference.
The simple method of identifying the composition of the workwear fabric is the combustion method. The practice is to draw a strand of cloth yarn containing warp and weft yarn at the sewing edge of the workwear, ignite it with fire, watch the state of the burning flame, listen to the smell issued after the burning of the cloth yarn, see the residue of the burning, so as to deduce and workwear durability label labeled fabric composition is consistent with the authenticity of the fabric composition.
1, cotton fiber and hemp fiber: cotton fiber and hemp fiber are just near the flame that is burning, burning rapidly, the flame is yellow, blue smoke. The difference between the two in the smell of burning and burning ashes is that cotton burning paper odor, hemp burning smell of grass ash; after burning, cotton has very little powder ashes, black or gray, hemp is a small amount of gray powder ashes.
2, wool fibers and silk: wool smoldering in fire, burning blistering, slow burning, emitting the smell of burning hair, burning ashes after more black spherical particles with complete luster, a finger pressure that is broken. Silk fire shrinkage into a doughnut, slow burning speed, accompanied by sizzling sound, emitting hair burning smell, burned into small black-brown spherical ashes, hand twist that is broken.
3, nylon and polyester: nylon, the scientific name of polyamide fibers, near the flame that is quickly curled and melted into a white gel, molten combustion in the flame dripping and blistering, burning without flame, leaving the flame is difficult to continue to burn, emitting celery smell, light brown molten material after cooling is not easy to shred. Polyester scientific name polyester, easy to ignite, near the flame that melting shrinkage, burning while melting black smoke, a yellow flame, emitting aromatic odor, after burning ashes for the hard black-brown block, with fingers can be twisted.
4, polyacrylonitrile fibers and polypropylene: polyacrylonitrile fibers, polyacrylonitrile fibers, near the fire softening and melting, black smoke on fire, white flame, rapid combustion from the flame, emitting a pungent smell of burning flesh, after burning ashes for irregular black hard, easy to twist and break. Polypropylene fiber, polypropylene fiber, near the flame that melts and shrinks, flammable, slow burning and black smoke, the upper end of the flame yellow, the lower end of blue, emitting petroleum odor, after burning ashes for hard round light yellow-brown particles, easy to twist and break.
