Three major identification methods of textile fabrics, you will be a master if you learn them!

, burns when exposed to fire, burns quickly, produces a yellow flame, and has a smell; there is a slight gray-white smoke, and it can continue to burn after leaving the fire. After the flame is blown out, there are still sparks that continue to burn, but the duration is not long. Long; it can maintain its original velvet shape after burning, and easily breaks into loose ash when touched. The ash is gray and soft powder, and the burnt part of the fiber is black;

It burns very quickly, softens, does not melt, does not shrink, and produces yellow or blue flames,There is the smell of burning grass; it continues to burn quickly after leaving the flame; there is little ash, in the shape of light gray or white grass ash;

It does not burn immediately when it comes into contact with the flame. It curls first, then smokes, and then the fiber bubbles and burns; the flame is orange and yellow, and the burning speed is slower than that of cotton fiber. It stops burning immediately after leaving the flame, and is not easy to continue burning. The odor of burning hair and feathers; the ash cannot keep the original fiber shape, but is in the form of amorphous or spherical shiny dark brown brittle pieces, which can be crushed when pressed with your fingers. The amount of ash is large and has the smell of burning;

Burns relatively slowly, melts and curls, shrinks into a ball when burning, and has the smell of burning hair; when leaving the flame Slightly shiny, burns slowly, and sometimes self-extinguishes; gray is a dark brown crispy ball that breaks into pieces when pressed with your fingers;

The burning characteristics are basically similar to cotton, but viscose fiber burns slightly faster than cotton fiber, with less ash and sometimes It is not easy to keep its original shape, and viscose fiber will make a slight hissing sound when burning;

Burns quickly, with sparks, melting while burning, with a pungent acetic acid smell when burning; leave the flame When it melts, it burns at the same time; the ash is a black and shiny irregular block, which can be crushed with your fingers;

Burns very quickly, does not melt, does not shrink, and has the smell of burning paper; it continues to burn rapidly after leaving the flame; there are few ash and is light gray or off-white;

When it is close to the flame, it causes the fiber to shrink. After contacting the flame, the fiber shrinks rapidly and melts into a transparent gel. object, with small bubbles;

It melts and burns while melting, and the burning speed is fast; the flame is white, bright and powerful, sometimes with a slight black smoke; it has a fishy or spicy smell similar to burning coal tar; it continues to burn after leaving the flame, but it burns The speed is slow; the ash is a dark brown irregular brittle ball, which is easy to crush with your fingers;

, when burning, the fiber shrinks rapidly and burns slowly, the flame is small and almost smokeless; when the fiber melts in large quantities It will produce a large dark yellow flame with small bubbles; it will have a special smell of calcium carbide gas when burning; it will continue to burn without the flame, and sometimes it will self-extinguish; the ashes will be dark brown irregular brittle beads that can be crushed with your fingers;