The quality of silk is chosen to fundamentally determine the quality of silk. Different quality silks can be correctly identified from the following five aspects:
Exterior
The high-quality silk has a pearl-like color and diffuse refraction of light. Clean and less impurities, the silk road is orderly and tidy; and the poor quality silk is often added with bleach and other chemicals, so that its appearance is pale, not shiny and moist, more impurities, silky roads.
Touch
The high-quality silk has a soft, smooth and elastic feel, and has no hard clumps; while the inferior silk has a rough touch, no flexibility, no moist feeling, and has a relatively large number of stolons, clams, oysters and oysters. taste
Silk with oily or mildewy smell is inferior.
combustion
Silk is not flammable when burned, and it is stopped when it is separated from the flame. It is loosely gray after burning and has a burnt smell of hair.
Fiber strength
The better the silk stretch, the better the quality. The same length of silk, after stretching, the longer the better the quality.
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