At present, the sales of polyester in the market are very large, because the raw materials of polyester are cheaper, while nylon is almost half as expensive.

This will not be marked when you buy it. You can buy it and burn it. Nylon is transparent when burning, and there is no black smoke, while polyester

There is black smoke in the burning place.

At present, the market is divided into domestic lines and Taiwan Province provincial lines according to the origin. The best line in China should be Lisi Line, which is more expensive, and so is Taiwan Province Province.

There are several brands whose quality and price are higher than those in China, such as the famous Lisi silk.

Extended data

There are more than ten kinds of basic knots in China, and their names are all named according to their shapes, uses, or original origins and meanings.

1. Double money knot: It looks like two and a half pieces of ancient China copper coins, hence the name.

2. Newbutton knot: it is often used to tie clothes, and it is named because of its function.

3. Pipa knot: This knot evolved from a double-line ox knot, which is used to make decorative buckles for Tang suits and cheongsam.

4. Tuanjinjie: It looks like a flower, hence the name. The golden knot is complete and diverse, similar to the shape of a flower. Although the knot is small, it is beautiful and not easy to loosen. Often inlaid with beads, very beautiful.

5. Cross knot: The knot has two sides, one is the mouth and the other is the cross, which is called a cross knot.

6. Auspicious knot: Auspicious knot is an extension of the cross knot and one of the ancient decorative knots, which means auspiciousness and auspiciousness. The knitting method is simple, the knot shape is beautiful, there are many kinds, and it is widely used. When used alone, if the knot is easily deformed by hanging heavy objects, it can be fixed with setting glue.

7. The swastika used by the Nazi Party: The line of the knot resembles the symbol of Buddhism, hence the name.

8. Coil knot: a kind of Chinese knot. It symbolizes the highest state of unity of mind and matter, no beginning, no end and eternity, and represents the auspiciousness of the avenue, so people attach great importance to it. The length of the disk symbolizes the realization of the cycle, is the origin of all things, and is one of the most important foundation knots. It is often the main knot of many varied knots, and because Chinese knots are closely symmetrical, they are easily loved by ordinary people in sense and vision.

9. Algae well knot: named for its compact structure, gorgeous shape and ancient patio. The homonym of well and brocade is also called algae well.

10. Flat knot: A flat knot is formed by taking a line or an object as an axis and shuttling the two ends of another line around the axis. Flat knots are widely used, which can be used to connect ropes with the same thickness, and can also be used to weave bracelets, chains and other accessories.

Reference source: Baidu Encyclopedia Chinese Knot