1. Listening with the ear: Open the inner liner of the silk quilt, take a little fiber, knead and rub with your hands, and listen carefully. Dry silk makes a rustling sound when rubbed, and silk, also known as silk, is a unique characteristic of real silk, while chemical fibers and cotton do not. In addition, during the process of friction between two fingers, silk generally "gathers" into threads, while chemical fibers slide out of the finger center.

2. Observation of Gloss: The luster of matte rayon products is elegant and bright, but not harsh. There are many reflective and refractive surfaces, which are irregular and similar to pearl luster. Although some chemical fibers are also bright, their color is pale and dazzling.

3. Comparison of creases: Take some fibers and repeatedly fold and knead them in half. Silk has good elasticity and no creases. And matte rayon has obvious creases that are difficult to recover. If there are slight creases but gradually recover, it is synthetic fibers such as nylon.

Burn it with fire for a while, then rub the burnt area with two fingers. The result is powder like silk, and after burning, it becomes a ball like silk. After a while, it becomes hard like matte rayon.

Another method is to use pure silk to feel cool and slippery, and to give it a texture when shaking with your hands. And matte rayon is not like this, it is very rigid.

Precautions for cleaning silk clothes:

1. Do not use hot water to wash silk clothes: Silk clothes are particularly delicate, and do not use hot water to wash silk clothes when cleaning. If silk clothes are washed with hot water, it can damage the protective layer of silk clothes, causing them to fuzz.

2. No soap: During the process of washing silk clothes, do not use soap to wash silk clothes. Washing silk clothes with soap will damage the silk contained in the clothes and make the entire silk clothes lose its luster.

3. Do not soak in water for a long time: During the process of cleaning silk clothes, the cleaning speed must be fast. Do not let silk clothes soak in water for a long time. If silk clothes are soaked in water for a long time, after cleaning and drying, the surface of the silk clothes will fuzz, and the appearance of the silk clothes after fuzzing will become particularly ugly.