The structure analysis of PP yarn polypropylene fiber!

PP yarn in the macromolecular structure does not contain chemical groups can be combined with dyes, so dyeing is more difficult. Usually using melt coloring method, pigment preparation and polypropylene polymer uniformly mixed in screw extruder, through melt spinning to obtain colored fibers with high color fastness.

Another method is to copolymerize or graft copolymerize with acrylic acid, acrylonitrile, vinylpyridine, so that the polymer macromolecules can be combined with the polar groups, and then directly dyeing with conventional methods. In the production process of PP yarn often need to add a variety of additives to improve the dyeability, light resistance and fire resistance.

Dongguan Donghong New Materials Co., Ltd. was founded in 1991, located in Wentang Brick Kiln Industrial Zone, Dongcheng District, Dongguan City, Guangdong Province, is a medium-sized enterprise specializing in the production of all kinds of PP yarn, with more than 800 employees. The company has now owned 16 PP yarn production lines, forming an annual output of 20,000 tons of PP yarn production scale.