How to tell if the ribbon quality is good or bad when purchasing it? This is a common concern for many nylon ribbon buyers! Don't worry too much; after reading the explanation below by our editor, the problem will be solved!

In fact, to verify the quality of a ribbon, the direct method is to burn it! The process of the burning test involves: extracting a few strands of warp and weft yarns from two unknown categories, respectively, and burning them with a lighter. During the burning process, observe certain physical phenomena to determine the material of the warp and weft yarns. Pay attention to the flame, melting condition, the smell emitted, and the condition of the ash after burning.

Trinidad Braiding: Only melts near flame, difficult to ignite, does not burn; marginal flame presents blue-green carbonization. The elastic braiding for shoe materials melts and decomposes, releasing toxic gases; the molten substance forms hard, round, black beads. Fluorocarbon fibers are commonly used in the textile industry to produce high-performance sewing threads. The combustion method is simple and straightforward for fiber identification, but it is not easy to determine blended products.

Nylon webbing: When near fire, it melts and ignites, with the flame appearing blue. It continues to melt and burn even after being removed from the flame, emitting a distinctive, irritating odor. The ash left after combustion is soft and loose black灰.

PP Webbing: Difficult to burn, extinguishes upon removal from the flame, with yellow flames and greenish-white smoke, emitting a刺激性 sharp, pungent, and sour odor. After combustion, the ash is dark brown, irregularly hard, and not easily crushed between fingers.

Polyester webbing: Melts upon contact with flame, highly flammable, burns slowly after being removed from the flame with black smoke emitted, flame tips yellow and base blue, releases a petroleum-like odor, leaving hard, rounded, light brown ash particles after combustion, which are easily crushed when rolled with hands.