Polypropylene yarn is finished by the processing of polypropylene. Chemical name is polypropylene fiber, which is made from propylene as raw material by polymerization, melt spinning fiber. Polypropylene yarn in 1957 officially started industrial production, is a rising star in the synthetic fiber. As polypropylene has the advantages of simple production process, low cost, high strength and relative density, polypropylene yarn develops rapidly. At present, polypropylene is the fourth largest variety of synthetic fibers.

Polypropylene yarn is widely used in the manufacture of industrial fabrics, non-woven fabrics. Such as carpet, industrial filter cloth, rope, fishing nets, building reinforcements, oil absorption carpet and decorative cloth. In civil use, polypropylene yarn can be purely spun or blended with wool, cotton or viscose to make a variety of fabrics. In addition, polypropylene fiber membrane can be used as packaging materials.

The main physical and chemical properties of polypropylene yarn

1. Shape Polypropylene yarn straight smooth straight, circular cross-section.

2. The greatest advantage of density polypropylene yarn is light texture, the density of only 0.91g / cm3 is the lightest chemical fiber varieties, so the same weight of polypropylene fibers can be obtained than other high coverage area.

3. High tensile polypropylene yarn high strength, elongation, higher initial modulus, excellent elasticity. Therefore, good wear resistance of polypropylene. In addition, the wet strength of polypropylene is basically equal to dry, so it is ideal for making fishing nets, cables.

4. Hygroscopicity and dyestuff Polypropylene yarn hygroscopicity is very small, almost non-hygroscopic, atmospheric regain near zero. But it has a wicking effect, passing water vapor through the capillaries in the fabric, but does not itself have any absorption. Polypropylene dyeing is poor, incomplete chromatography, but the solution can be used to make up for lack of coloring.

5. Acid-alkali-resistant polypropylene yarn has good chemical resistance, in addition to concentrated nitric acid, concentrated caustic soda, polypropylene acid and alkali resistance is good, it is suitable for use as a filter material and packaging materials.

6. Polyester yarn, such as light resistance, poor light fastness, poor thermal stability, easy to aging, intolerant ironing. However, anti-aging agents can be added during spinning to improve their anti-aging properties. In addition, polypropylene electrical insulation is good, but easy to produce static electricity during processing.

Polypropylene yarn in the life of the application of similar polypropylene, polypropylene yarn is also called PP Cape, PP yarn / PP Cape is mainly used for webbing, polypropylene yarn with a rope. Polypropylene yarn and polypropylene yarn / Polypropylene Cape can also be used for mobile phone straps, laces and backpacks and other civilian Ribbon.

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