How to distinguish the ingredients of lace fabric

At present, the composition and content of some lace fabrics sold on the market are not standardized, causing some people to take the opportunity to pretend to be shoddy and fake as real to deceive consumers. In order to help consumers accurately identify the main true ingredients of lace fabrics, we recommend a simple and practical burning method. Consumers only need to pull out a thread from the fabric, ignite it with fire, then observe the state of the burning flame, smell the smell of the cloth yarn after burning, and look at the residue after burning, so as to judge and label it on the clothing durability label. Whether the composition of the fabric is consistent, in order to distinguish the authenticity of the fabric composition.

1. Polyamide fiber, which is the scientific name of nylon and polyester nylon, quickly crimps and melts into a white gel near the flame. It melts and drips and foams in the flame. There is no flame when it burns. It is difficult to continue burning without the flame, giving off the smell of celery. The light brown melt is not easy to grind after cooling. The scientific name of polyester is polyester fiber, which is easy to ignite and melts when it is near the flame. When it burns, it emits black smoke while melting. It is a yellow flame and emits an aromatic smell. After burning, the ashes are dark brown lumps, which can be broken with fingers.

2. Six. Polyurethane fiber, the scientific name of spandex and fluorine spandex, melts while burning near the fire. The flame is blue when burning. It will continue to melt away from the fire, emitting a special pungent odor, and the ashes will be soft after burning. Fluffy black ash. The scientific name of fluorine fiber is polytetrafluoroethylene fiber, which is called fluorite fiber by ISO organization. It only melts near flame, hard to ignite, and does not burn. The edge flame is blue-green and carbonized, melted and decomposed. The gas is toxic, and the melt is hard round black. Beads. Fluorine fibers are often used in the textile industry to make high-performance sewing threads.

　　3. Viscose fiber and cuproammonium fiber Viscose fiber is flammable and burns quickly. The flame is yellow and emits the smell of burning paper. After burning, there is less ash, and it is a smooth and twisted ribbon of light gray or off-white fine powder. Copper ammonium fiber, commonly known as tiger kapok, burns near the flame. It burns quickly. The flame is yellow and emits an acid taste. After burning, there is very little ash, only a small amount of gray black ash.