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nature : for polypropylene (modified) dyeing of the dye. Because of the molecular structure of PP is neatly arranged crystal formed by polar base with no little-OH, - NH2, - CONH2, - COOH, etc. with the dye molecules combined group. Hydrophobic big, absorbing only 0.1%. There were more difficult. The polypropylene resin into stearic acid and nickel salts or thio bisphenol nickel metal-organic complex, or joining polyethylene pyridine, polyetherester other polymer. Spun into a modified polypropylene fibers, it will be easier staining. Metal modified polypropylene dyes, as well as with non-water-soluble properties of disperse dyes, but also has with the metal chelating properties. When dyeing, dye diffusion into the fiber, fiber and metal chelating atoms and anchor in the fiber. Polymer-modified PP dye, polymer with these easy color capacity. Polypropylene is azo dye, three-fang methane, anthraquinone and heterocyclic types.
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