How to identify the quality of non-woven products

Non-woven fabrics are popular nowadays, and many people do not know how to identify them when they buy non-woven fabrics. In fact, according to the different chemical composition of the non-woven fiber, the combustion characteristics are also different, thus roughly distinguishing the major categories of aluminized non-woven fiber. The comparison of the combustion characteristics of several common non-woven fibers is introduced as follows. 1. Polypropylene fiber: close to the flame: melting; contacting the flame: melting and burning; leaving the flame: continuing to burn; smell: paraffin smell; residue characteristics: off-white hard transparent round beads. 2. Cotton, hemp, viscose, cupra: close to the flame: no shrinkage and no melting; contact with the flame: rapid burning; leaving the flame: continue to burn; smell: the smell of burning paper; residue characteristics: a small amount of gray black or gray ashes. 3. Spandex fiber: near the flame: melting; contacting the flame: melting and burning; leaving the flame: self-extinguishing; smell: peculiar smell; residue characteristics: white gel. 4. Silk and wool fiber: close to flame: curl and melt; contact flame: curl, melt, burn; leave flame: slow burning and sometimes extinguish itself; smell: smell of burnt hair; residue characteristics: loose and brittle black particles or coke shape. 5. Polyester fiber: near the flame: melting; contacting the flame: melting, smoking, slowly burning; leaving the flame: continuing to burn, sometimes extinguished by itself; smell: special aromatic sweetness; residue characteristics: hard black round beads. 6. Vinylon fiber: near the flame: melting; contacting the flame: melting and burning; leaving the flame: continuing to burn and emitting black smoke; smell: unique fragrance; residue characteristics: irregular scorched brown lumps. 7. Nylon fiber: near the flame: melting; contacting the flame: melting and smoking; leaving the flame: self-extinguishing; smell: amino smell; residue characteristics: hard light brown transparent round beads. 8. Acrylic fiber: close to the flame: melting; contacting the flame: melting and smoking; leaving the flame: continuing to burn and emitting black smoke; smell: pungent; residue characteristics: black irregular beads, fragile. 9. Chlorine fiber: near the flame: melting; contacting the flame: melting, burning, emitting black smoke; leaving the flame: self-extinguishing; smell: pungent smell; residue characteristics: dark brown lumps.