You purchase regularly buy grosgrain ribbon , how to distinguish between the different types of webbing to distinguish is a headache event, are often faced with this question and do nothing , for knowledge is poorly understood, here today briefly introduce resolution way , you want to help a friend .
Combustion method generally used to identify fiber is simple, but not easy to determine the blended products . From the warp and weft direction ( ie vertical and horizontal direction ) were each taken a yarn burning Kam . The two weft yarns of the webbing unknown class roots of split out , respectively, with lighter combustion , the combustion process in some physical phenomena observed to determine the warp and weft yarn material . Respectively, when the flame burning , melting conditions and odors , ashes after burning conditions were observed.
Here are two webbing material physical properties of the combustion parameters, when using the combustion method of identifying , for your reference :

1.Cotton fiber and hemp fiber

Cotton fiber and hemp fiber are just near the flame that is burning, burning quickly, yellow flame, take the blue smoke. Both the smell and the burning ashes after burning difference is that the issue of paper burning smell of cotton, linen smell of burning ash; combustion, there is very little cotton powder ashes, was black or gray, hemp produces a small amount of white powder is ashes.

2.Nylon and polyester

Polyamide (nylon) scientific name polyamide fibers, near the flame that quickly melt into white gelatinous curling, burning in flames melt dripping and blistering, burning without a flame, the flame is difficult to continue to burn away, emitting a celery flavor, after cooling Hazel melt easily crush.
Polyester generic polyester fiber, easy to ignite, near the flame that melt condensation, black smoke when burned edges melted edge, yellow flame, a sweet odor, dark brown ash after burning lumps, can crush with your fingers. Nylon webbing: Near the flame that is collapsing, melting burning, dripping and blistering, not directly continued burning, like celery flavor, hard, round, light brown to gray beads. Polyester ribbon: Near the flame that is collapsing, melting burning, dripping and foaming, can continued burning, a few smoke and very weak sweetness, hard round, black or brown.

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