Because mulberry silk is a green product respected by the world. It is also known as the “fiber Queen” because it is a protein fiber, a porous material, good air permeability, and excellent moisture absorption.

Real silk fabric is smooth, soft, and elastic; It has the natural luster of silk, bright and soft. There are several ways to distinguish true and false silk:

  1. Combustion method

(1) Silk has the smell of burning feathers when burning. It is difficult to continue burning when leaving the fire source and will extinguish itself. The ash is fragile, crisp, fluffy, and black.

(2) Rayon (viscose fiber) has a chemical smell mixed with burning paper when burning. It burns very fast. The ashes are ashless except those without light, and there is a small amount of gray-black ash between them.

(3) Cotton fiber and polyester have very weak sweetness when burning, do not directly continue to burn or continue to burn slowly, and the ash is hard, round, and beaded.

(4) Both cotton and hemp have the smell of burning paper. The ash is soft and black-gray.

(5) Wool burns like silk. The difference can be seen by visual inspection.

  1. Observe the gloss. The luster of silk fabric is soft and uniform, bright but not dazzling. Although the luster of rayon is also bright, it is not soft. Although the luster of polyester filament is uniform, it has flash or bright filament. Nylon silk has poor luster as if coated with a layer of wax.
  2. Feel it. When touching silk fabrics, there is a feeling of holding hands, while other chemical fiber products do not have this feeling. Rayon fabric is smooth and soft, but not neat. The hand touch of cotton and silk is hard but not soft.
  3. Scrutinize the creases. When the silk fabric is squeezed tightly and then released, it has good elasticity and no creases. Rayon fabric has obvious creases after it is released, and the creases are difficult to restore to their original state. Although nylon silk has creases, it can slowly return to its original state, so don’t be confused by its illusion.
  4. Test fiber tension. Take out several fibers at the edge of the fabric and wet them with your tongue. If they are easy to break at the wet place, it means rayon. If they are not broken at the wet place, it means real silk. If the fibers have good strength in the dry and wet state and are not easy to break, it means nylon or polyester.
  5. Listen to the friction. Because the silk surface is protected by sericin and resistant to friction, dry silk fabrics will make a sound when they rub against each other, commonly known as “Silk sound” or “Silk sound”, while other chemical fiber products have no sound.

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