1. PP yarn (also known as polypropylene yarn) is composed of: PP rubber particles + PE rubber particles + masterbatch from coarse to fine: 1200D, 1000D, 900D, 600D, 300D.
2. Nylon yarn: The raw materials for the production of nylon tape are from coarse to fine: 1260D, 840D, 630D, 420D, 390D, 210D, and 390D yarn is commonly used for 840D N7562.

3. The main raw materials for the production of elastic belts with special multi-yarns: small yarns and weft yarns of jacquard belts from coarse to fine: 1200D, 900D, 600D, 300D, 150D Properties: twisted, untwisted (AO original yarn), used for special multi-yarn In the weft, there is no need to twist, twisted yarn: it is not easy to fluff when making webbing. When used for small yarns, twisted yarns are used to prevent fluff.
4: Stretch nylon, also known as nylon yarn, is divided into 70D single-strand and 70D double-strand, commonly used 70D double-strand, commonly used in the production of elastic belts.
5: Acrylic from coarse to fine: 10 pieces: 3/10, 2/10, 1/10; 20 pieces: 3/20, 2/20, 1/20; 30 pieces: 2/30, 10 pieces are commonly used.
6: Pure cotton, made of plant cotton, feels softer and more fragile.
7. SP line (ie needle thread) = SPUN POLYESTER from thick to thin: 3/20, 2/20.
8: Synthetic cotton is a combination of some cotton and other fibers.
9: Plastic thread (fishing thread) is used for health care products, weft yarn, and small yarn to produce curtain tape.