Preparation method of easy-dyeing microfiber leather
2016
The invention discloses a preparation method of easy-dyeing microfiber leather.The preparation method comprises the steps that 1, sea-island fibers are spun; 2, a non-woven fabric is made from the sea-island fibers; 3, heat setting is conducted on the non-woven fabric; 4, a polyurethane sizing agent is impregnated and cured, and then semi-finished synthetic leather is prepared; 5, decrement is conducted on the unfigured sea-island fibers through a methylbenzene stripping technology or decrement is conducted on the figured sea-island fibers through an alkali decrement stripping technology, and superfine fiber synthetic leather can be prepared; 6, softening treatment and sueding treatment are conducted, and then synthetic leather to be dyed can be prepared after treatment is finished; 7, the synthetic leather to be dyed is dyed with dispersed dye liquid or cationic dye liquid, and after dyeing is finished, the easy-dyeing microfiber leather is obtained.The easy-dyeing microfiber leather product prepared through the method has the advantages of being high in fiber content, skeleton sense and environmental friendliness, excellent in drapability and high in dyeing fastness.
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