How to identify the ingredients of clothing fabrics
Recently, some fabrics products and workwear manufacturers selling in the market do not standardize the names and contents of fabric ingredients, causing unscrupulous businessmen to take the opportunity to pass off substandard products. , pretending to be fake and deceiving consumers. In order to help consumers accurately identify the main real ingredients of work clothes fabrics, simple identification common sense is introduced here for consumers’ reference when purchasing work clothes.
IdentificationWork clothes clothThe simple method of ingredients is the burning method. The method is to pull out a strand of cloth containing warp and weft from the seam of the work clothes, ignite it with fire, watch the burning flame, listen to the smell of the burning cloth, and look at the residue after burning. Infer whether the fabric composition is consistent with the fabric composition marked on the workwear durability label to identify the authenticity of the fabric composition.
1. Cotton fiber and linen Fiber Cotton fiber and hemp fiber both ignite as soon as the flame is near, burning quickly, with a yellow flame and blue smoke. The difference between the smells emitted by the two when burning and the ashes after burning is that cotton emits a paper smell when burned, while hemp emits a grass ash smell after burning. After burning, cotton has very little powdery ash, which is black or gray, while hemp produces a small amount of off-white powdery ashes.
2. Wool fiber and silk Hair smokes when exposed to fire, foams when burned, burns slowly, and emits the smell of burnt hair. After burning, the ashes are mostly shiny black spherical particles that break into pieces when pressed with your fingers. When the silk is exposed to fire, it shrinks into a ball, burns slowly, makes a hissing sound, and emits the smell of burning hair. After burning, it condenses into small dark brown spherical ash, which can be broken into pieces when twisted by hand.
3. Nylon and polyester nylon The scientific name is polyamide fiber. It quickly shrinks and melts into a white gel when near the flame. It melts, drips and bubbles in the flame. There is no flame when burning. It is difficult to continue burning without the flame. It emits the smell of celery and becomes a light brown melt after cooling. Not easy to grind. The scientific name of polyester is polyester. It is easy to ignite and shrinks when it is near a flame. When burning, it melts and emits black smoke, showing a yellow flame and emitting an aromatic smell. After burning, the ashes turn into dark brown lumps that can be crushed with your fingers.
4. Polyacrylonitrile fiberand polypropylene polyacrylonitrile fiber, whose scientific name is polyacrylonitrile fiber, softens and shrinks near fire. It emits black smoke after igniting, and the flame is white. It burns quickly after leaving the flame. , exuding the pungent smell of roasted meat. After burning, the ashes turn into irregular black lumps that are easily broken by hand. The scientific name of polypropylene is polypropylene fiber. It shrinks when near the flame and is flammable. It burns slowly away from the fire and emits black smoke. The upper end of the flame is yellow and the lower end is blue. It emits the smell of petroleum. After burning, the ashes are hard round light yellow-brown particles, which are easy to twist by hand. broken.
5. Vinyl and vinylon Vinylon’s scientific name is polyvinyl formal fiber. It is not easy to ignite. It melts and shrinks near the flame. When burning, there is a little flame at the top. When the fibers are melted into a gel, the flame becomes larger. There is thick black smoke and a bitter smell. After burning, black remains. Small bead-like particles that can be crushed with your fingers. The scientific name of chlorine fiber is PVC fiber. It is difficult to burn and extinguishes as soon as it is removed from the fire. The flame is yellow, with green white smoke at the lower end. It emits a pungent, pungent and sour smell. After burning, the ashes turn into dark brown irregular lumps, which are difficult to crush with fingers.
Six. Spandex and fluoronex Spandex’s scientific name is polyurethane The fiber melts and burns when close to the fire. The flame is blue when burning. It continues to melt and burn away from the fire, emitting a very pungent odor. After burning, the ashes are soft and loose black ash. The scientific name of fluoron is polytetrafluoroethylene fiber, ISO organization It is called fluorite fiber. It only melts near the flame, is difficult to ignite, and does not burn. The edge flame is blue-green carbonized, and it decomposes when melted. The gas is toxic, and the melt is hard round black beads. Fluoron fiber is often used in the fabric industry. High performance sewing thread.
Seven , Viscose fiber and cupro-ammonium fiber. Viscose fiber is flammable, burns very quickly, has a yellow flame, emits the smell of burning paper, has little ash after burning, and is a smooth and twisted belt-shaped light gray or gray-white fine powder. Cupro-ammonium fiber is commonly known as tiger Kapok burns when near a flame. It burns quickly, the flame is yellow, and it emits a sour smell. There are very few ash after burning, only a small amount of gray-black ash. The first futures company in mainland China to take advantage of Xinjiang market and cotton resources takes the lead
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