Dyeing method of artificial leather

A dyeing method and technology for artificial leather, applied in the field of leather processing, can solve the problems of different dye requirements and inapplicability, and achieve the effect of increasing difficulty, stiffness and softness
CN101798764AInactive Publication Date: 2010-08-11厦门象屿兴泓超细材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
厦门象屿兴泓超细材料有限公司
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a dyeing method of artificial leather, comprising: providing superfine fibre PU synthetic leather composed of superfine fibre non-woven fabric and polyurethane impregnated in the superfine fibre non-woven fabric, wherein the superfine fibre non-woven fabric is prepared from superfine fibre, and the superfine fibre comprises polyester superfine fibre and polyamide superfine fibre; adding the superfine fibre PU synthetic leather into dye bath filled with the dye containing the following components for dyeing; the dye comprises the following components in percentage by weight: 63-78% of acidic dye, 13-29% of disperse dye and the balance of metal complex dye; and dyed superfine fibre PU synthetic leather is dried after being washed by water. The dyeing method of the invention realizes the simultaneously and evenly dye of polyester fibre, polyarmide fibre and polyurethane in the superfine fibre PU synthetic leather, and prepared superfine fibre PU synthetic leather not only has proper stiffness and softness but also has abundant color.
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Description

technical field

[0001] The invention relates to the field of leather processing, in particular to a method for dyeing artificial leather. Background technique

[0002] Artificial leather is widely used because of its good wear resistance, heat resistance, cold resistance, high toughness and tensile strength. The artificial leather produced by impregnating non-woven fabrics with PU (polyurethane) resin is called PU synthetic leather. PU synthetic leather has the pattern and luster of natural leather. It is widely used for its rich colors, high strength, and not easy to damage. In the clothing industry, luggage industry, sports industry, automobile manufacturing and other industries.

[0003] Microfiber PU synthetic leather is an artificial leather with a microfiber structure with a fineness of less than 0.33dtex. Due to the strong water absorption of superfine fibers, it has hygroscopicity comparable to natural leather. In addition, microfiber PU synthetic leather also surp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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