One is to look. Look at the logo: first look at the product name, factory name and address, specifications and models, ingredients of materials used, net weight, etc. If the above contents are not marked, the marked contents are incomplete or exaggerated, consumers should be cautious when buying. Choose a silk quilt with the logo "100% mulberry silk" or "100% tussah silk". If it means "100% silk" in general, it may be counterfeit. Look at the color: high-quality silk should be milky white and slightly yellow, with soft luster on the surface and long silk fibers. Each layer of silk is like a net, and may be accompanied by a small amount of pupa shells. After the surface silk is pulled open, there is no flocculent broken silk inside. If there are rows of stitches on the quilt, nine times out of ten it is a fake silk quilt made of short fibers.

The second is to touch. High-quality silk feels soft, smooth and elastic, without lumps; Silk Silk is delicate and soft, and it is a real material that is easy to stick to hands; And those that don't stick to their hands are fakes. Inferior silk is rough, inflexible and moist, and there are relatively many cocoon stems, cocoons, raw cocoons and pupae sloughing. The other is to rub the quilt exposed from the zipper mouth for about one minute, and then let it suck paper scraps the size of a small grain of rice, the distance is about 0.3mm to1mm. If it can suck up paper scraps, it means that it is chemical fiber or many chemical fibers. Silk does not generate static electricity.

The third is to smell. Silk without any chemicals has the natural smell of silkworm itself. In order to increase the smoothness of inferior silk, silicone oil and softener will be added. Silk with oily or musty smell is inferior.

The fourth is combustion. When silk burns, its separation from the flame stops. The smoke is white, accompanied by the burning smell of protein. The burnt ash powder is crisp and can be ground into powder by hand. Chemical fiber materials emit black smoke when burning, with pungent smell, black ash and pinched hands.

The fifth is pulling. Silkworms made of high-quality silk are not easy to tear apart by hand, while inferior silk will be torn apart by hand gently, and some will be bundled.

The sixth is payment. Silkworm is made of high-quality silk. No matter how you kick it, it will not become a ball. And inferior silk will be kicked into a ball while sleeping. Now many manufacturers just put some filaments at the opening of the quilt, but they are all short fibers. You can go deep into the opening and pull out some filaments for comparison. Short fiber silk is often the leftover silk made by some machines.