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JapanCharacteristics of commonly used fibers
1. Polyester, nylon: cross-sectional shape: round or special-shaped; longitudinal shape: smooth
2. Polyester: close to the flame: shrink; contact the flame: melt, smoke, burn slowly; leave the flame: continue to burn, sometimes extinguished by itself; smell: special aromatic sweetness; residue characteristics: hard black beads
3. Nylon: close to the flame: melting; contacting the flame: melting, smoking; leaving the flame: self-extinguishing; smell: amino smell; residue characteristics: hard light brown transparent beads
4. Acrylic fiber: close to the flame: shrink; contact the flame: melt, smoke; leave the flame: continue to burn, black smoke; smell: spicy; Residue characteristics: black irregular beads, brittle
5. Spandex fiber: close to the flame: melting; contacting the flame: melting, burning; leaving the flame: self-extinguishing; odor: peculiar smell; residue characteristics: white gelatinous.
