The process of polypropylene staple fiber seems simple and convenient, but is it really so? A little mistake in the operation process will have a greater impact on the finished product. Take, for example, the problem of excessive elongation of polypropylene staple fibers.

Excessive elongation of polypropylene staple fiber will cause a lot of harm. In blending, the strength of yarn will also be affected.

In spinning, it has been found that the strength of yarn after blending is poor, such as the quality index of pure polypropylene fiber 2808, polypropylene 50% cotton blend index 1950, polypropylene 50% cotton blend index 2193,215 pure cotton quality index 2336. As can be seen from the above data, pure spinning polypropylene yarn strength is the highest, far higher than cotton, but with cotton blending, but not as high as pure cotton, although this situation may be related to the uneven mixing of polypropylene fiber and cotton, but also with polypropylene fiber is difficult to control the stretch length, so it seems to be more than caring about the simple process is more test manufacturers.

Polypropylene fiber looks like a group of cotton, soft and elastic, polypropylene fiber elongation performance is large, it is easy to control in production, elongation will be 60%, in addition to its polypropylene macromolecule itself structural factors, in the production process may also be insufficient tensile.

Because the silk is not uniform, improve the elongation of easy winding roll break, or sometimes pull back after the foot. In production, it is often found that the retraction between the second and third drawing machine will pull three sets of five rollers to reverse, indicating that after orientation, the internal stress of the fiber is great and there is retraction. These can be improved by intense heat setting or appropriate heat treatment.

Hubei Botao Composite Fiber Co., Ltd. was established in October 2000, specializing in the production and sales of polypropylene fiber, polyester, composite fiber, polylactic acid staple fiber, products are mainly used in non-woven fabrics, automotive interior, geotextiles, carpets, filtration and other industries. The company is located in Jingmen City, Hubei Province, now has six branches, covering a total area of 300,000 square meters. The company is equipped with imported fiber production line, fixed assets of more than 100 million yuan, annual output of 50,000 tons of polypropylene staple fiber, 20,000 tons of polyester staple fiber, 10,000 tons of composite fiber, annual output of more than 500 million yuan.

Based on technological innovation, the company has introduced new technical talents, cooperated with large and medium-sized universities in research and development, and created high-end Botao brand. The company has filled the market gap by researching and developing automobile interior decoration and polypropylene staple fiber for high-speed railway geotextile. The company has more than 280 employees, including 8 engineers and more than 30 other technical personnel. With strong technical force, the company has strict quality testing system and independent research and development, production and marketing capabilities. It is a leading enterprise in China's polypropylene fiber industry, and has participated in drafting and formulating the industry standard of Polypropylene Staple Fiber.