Chemical properties and processing methods of PP yarn!

chemical property

Chemical corrosion resistance: PP yarn has good resistance to most chemicals. It can resist the erosion of common chemicals such as acid, alkali, salt, etc. In some chemical industry environments, such as the production of corrosion-resistant filter bags and protective fabrics for chemical pipelines, PP yarn can leverage its chemical stability advantages.

Thermal stability: PP yarn has good thermal stability within a certain temperature range. Its melting point is generally around 160-170 ℃, and its performance is stable at room temperature. However, when the temperature is too high, PP yarn will soften, melt and other phenomena, so temperature control should be paid attention to during use and processing.

Processing method

Spinning process: PP yarn is mainly produced through melt spinning process. Heat the polypropylene slices to a molten state, extrude them into fine filaments through a spinneret, and then produce yarn through processes such as stretching, cooling, and twisting. During the spinning process, parameters such as nozzle aperture, extrusion speed, and stretch ratio can all affect the quality and performance of PP yarn.

Dyeing and post-processing: PP yarn itself is difficult to dye because its molecular structure lacks active groups that bind with the dye. However, through some special dyeing methods such as carrier dyeing, high-temperature and high-pressure dyeing, PP yarn can be dyed. In addition, in order to improve certain properties of PP yarn, post-treatment can also be carried out, such as anti-static treatment, antibacterial treatment, etc.

Dongguan Donghong New Material Co., Ltd. Founded in 1991, located in Wentang Brick Kiln 冚 Industrial Zone, Dongcheng District, Dongguan City, Guangdong Province, is a medium-sized enterprise specializing in the production of various types of polypropylene yarn, with more than 800 employees. At present, our company has 16 polypropylene filament yarn production lines, forming an annual output of 20,000 tons of polypropylene yarn production scale.