The simple method of identifying the ingredients of clothing fabrics is the combustion method. The method is to draw a ray of cloth containing the meridian and weft gauze on the side of the clothing, ignite it with fire, observe the state of burning flames, smell the smell after burning in the cloth yarn, look at the remaining objects after the burning, so as to judge the burning object, so as to judge Whether the fabric component marked on the durability label of clothing is consistent to identify the authenticity of the fabric component.
Fabric
First, cotton fiber and hemp fiber cotton fiber and hemp fiber are just near the flames, burning rapidly, the flames are yellow, and blue smoke. The difference between the smell and ash after burning and the ashes after burning is that the cotton burns emit a paper smell, and the hemp burns produces the gray smell of the plant; after the burning, the cotton has less powder ashes, black or gray, and a small amount of gray and white powder is produced.
Second, the fiber fiber and the silk fur are smoked. When burning, the fiber is foaming, the burning speed is slow, and the burnt smell of the hair is emitted. After burning, the ashes are mostly shiny black spherical particles. The fingers are crushed as soon as possible. The real silk encounters the fire into a ball -like, the burning speed is slow, accompanied by a sound, exuding the burnt flavor of the hair. After burning, the dark brown ball -shaped ashes are formed.
Third, nylon and polyester nylon scientific name polyamide fiber. Near flames quickly curls into white glue, dripping and foaming in the flames, no flames when burning, leaving the flames to continue burning, emitting celery flavor, which exudes the smell of celery. Light brown melting after cooling is not easy to study. Polyester scientific polyester fiber, which is flawed, near flames are fused. When burning, black smoke is melted while burning.
Fourth, acrylic and propeline acrylics learn the name polypropylene fiber, softened and softened by the fire, and the black smoke was risen after the fire. , Fragmented by hand twisting. Polycerine scientific name polypropylene fiber, near the flames, flammable, flammable, slowly burning from the fire and the black smoke, the upper end of the flame, the lower end of the blue, exuding the oil flavor, the ashes after burning are hard round light yellow -brown particles. broken.
