How to solve the problem of difficult dyeing of polypropylene high-strength yarn?
Polypropylene high-strength yarn is one of the polypropylene products, and it is a synthetic fiber with a wide range of uses. However, because polypropylene does not contain chemical groups that can bind to dyes in the macromolecular structure, it is difficult to dye.
Because of its difficulty in dyeing, the application areas of polypropylene high-strength yarns are limited to a certain extent, especially in clothing. How to solve the problem of difficult dyeing of polypropylene high-strength yarn?
The scientific name of polypropylene high-strength yarn is polypropylene fiber. It melts near the flame and is flammable. It burns slowly and emits black smoke from the fire. The upper end of the flame is yellow and the lower end is blue, emitting a smell of petroleum. The ashes after burning are hard round light yellow-brown particles. Twist fragile.
Usually, the melt coloring method can be used to uniformly mix the pigment preparation and the polypropylene polymer in a screw extruder, and the colored fiber obtained by melt spinning has high color fastness.
Another method is to copolymerize or graft copolymerize with acrylic acid, acrylonitrile, vinyl pyridine, etc., to introduce good groups that can be combined with dyes on the polymer macromolecules, and then directly dye with conventional methods. In the production process of polypropylene high-strength yarns, various additives are often added to improve dyeability, light resistance and flame resistance.
The above are some solutions to solve the difficulty of dyeing polypropylene high-strength yarn.
Xuzhou Heping Chemical Fiber Co., Ltd. is located in Xuzhou, Jiangsu. For many years, it has focused on the development and production of polypropylene high-strength yarns. The polypropylene high-strength yarns produced by it have many excellent properties such as light weight, high strength, anti-aging, acid and alkali resistance, which also makes polypropylene high-strength Silk can be used in all aspects of our lives. Heping chemical fiber polypropylene high-strength yarn is supplied by manufacturers, with a complete range of products and high-quality after-sales service. Users can purchase with confidence. Heping Chemical Fiber also has high-quality polypropylene industrial yarn, polypropylene high-strength yarn, high-strength polypropylene network yarn, polypropylene high-strength yarn, high-strength polypropylene yarn and split film industrial yarn.
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