1, fiber strength: the better the strength and elongation of silk, the better the quality. The longer the silk quilt with the same length is stretched, the better the quality. Generally, good mulberry silk can be pulled above 100 cm.

2, feel: high-quality silk feels soft, smooth and elastic, without lumps; Inferior silk, on the other hand, feels rough, inflexible and moist, and there are relatively many cocoon stems, cocoons, raw cocoons and pupae sloughing. Silk with oily or musty smell is inferior.

3. Burning: When silk burns, it immediately turns to ashes, and the burning speed is very fast. After burning, it was loose gray and smelled of burnt hair. Kapok is also ashes that can be crushed after burning.

Extended data

Try to buy in regular shopping malls, give priority to brands with good reputation and comprehensive logo, and carefully check whether the filler marked is mulberry silk or tussah silk. Mulberry silk is silk secreted by silkworm, which is thin and long, slightly yellow in white, delicate and smooth to the touch, and has a faint odor of animal fibers. This kind of silk quilt is especially soft and close to the skin, and it is a first-class silk quilt.

Tussah silk is the silk secreted by tussah, which is shorter and thicker than mulberry silk, and its color is darker, so chemicals are often used to fade it. Tussah silk contains a lot of sericin, so it feels rough and dull, and the silk quilt made of it is not very close to the body compared with mulberry silk.

Baidu encyclopedia-silk quilt