Preparation method of aqueous / solvent-free composite environmentally friendly polyurethane synthetic leather

A water-based polyurethane, solvent-free technology, applied in the field of synthetic leather manufacturing, can solve problems such as being unfavorable to health and environmental protection, and achieve the effects of strong skin and skin feel, strong pattern three-dimensional effect, and moderate cost
CN105350342AActive Publication Date: 2016-02-24ANHUI ANLI MATERIAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI ANLI MATERIAL TECH
Publication Date
2016-02-24

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Abstract

The present invention discloses a preparation method of aqueous / solvent-free composite environmentally friendly polyurethane synthetic leather, the synthetic leather comprises an aqueous elastomer surface layer and a solvent-free foaming intermediate layer, the aqueous elastomer surface layer resin is thermosetting polyether aqueous polyurethane resin, the solvent-free foaming intermediate layer is thermosetting two-component polyether solvent-free foaming polyurethane resin, and the two-component material is polyether combination A material and polyether B material prepolymer. The preparation process does not use any organic solvent, achieves the synthetic leather production and processing, finished product zero solvent use and health and environmental friendliness; at the same time, the advantages of the aqueous polyurethane resin and the solvent-free polyurethane resin are combined, and the obtained synthetic leather products has strong pattern stereoscopic impression, soft hand feeling, superior hydrolysis resistance and other physical properties, and skin and leather feeling equivalent to natural dermis.
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Description

1. Technical field

[0001] The invention relates to a method for manufacturing polyurethane synthetic leather, in particular to a method for preparing a water-based / solvent-free composite type environment-friendly polyurethane synthetic leather, which belongs to the field of synthetic leather manufacturing. 2. Background technology

[0002] With the development of the national economy and the improvement of people's living standards, consumers not only have high requirements for the quality of clothing, shoes and hats, sofa furniture, and automotive interior products, but also have very high requirements for the environmental performance of materials. At present, although leather products have the advantages of comfortable hand feeling, good elasticity and good durability, due to the limited natural leather resources, high-performance, high-quality and high-value-added products made of top layer leather are in short supply, and prices continue to rise. Become synonymous with ...

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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