What is PP yarn, PP yarn advantages introduced!

PP yarn is mainly used for various civil webbing belts such as webbing and rope mobile phone straps, shoelaces and backpack straps.

Specifications of PP yarn; 300D, 450D, 600D, 900D, 1000D, etc. There are now nearly 10,000 colors for customers to choose from. Polypropylene can also customize polypropylene yarns of various colors according to customer needs.

The belts made of PP yarn with special properties can be used as car seat belts, mountaineering, high-altitude and offshore work safety belts, air vehicle straps, etc.

The performance characteristics of PP yarn have the following aspects:

Shape: The longitudinal surface of polypropylene is straight and smooth, and the cross section is round;

Density: The great advantage of polypropylene is its light texture. Its density is only 0.91g / cm3. It is a lighter density among common chemical fibers.

Strong elongation: polypropylene yarn has high strength, large elongation, high initial modulus, and excellent elasticity. Therefore, polypropylene has good abrasion resistance. In addition, the wet strength of polypropylene yarn is basically equal to the dry strength.

Hygroscopicity and dyeability: Polypropylene has very little hygroscopicity, hardly hygroscopic, and the moisture regain in normal atmospheric conditions is close to zero. But it has a wicking effect, can transfer water vapor through the capillary in the fabric, and does not have any absorption effect itself.

Acid and alkali resistance: Polypropylene has good chemical resistance. In addition to concentrated nitric acid and strong caustic soda, polypropylene has good resistance to acids and alkalis.

Lightfastness: Polypropylene has poor lightfastness, poor thermal stability, easy ageing, and is not resistant to ironing. But anti-aging agent can be added during spinning to improve its anti-aging performance. In addition, polypropylene has good electrical insulation properties, but is prone to static electricity during processing.

PP yarn has superior performance and is a chemical fiber material often used in our daily life and production.