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A kind of preparation method of seamless bonding polyurethane synthetic leather

A polyurethane and synthetic leather technology, applied in chemical instruments and methods, synthetic resin layered products, textiles and papermaking, etc., can solve the problems of limited application scope, poor setting effect, leather surface shrinkage, etc., to achieve strong functionality and wearability. Lightweight and smooth

Active Publication Date: 2015-08-19
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional polyurethane synthetic leather products for sports and leisure shoes have disadvantages such as thick leather surface, easy peeling, wrinkled paper, poor setting effect, leather surface shrinkage, etc., which cannot meet the demand and the application range is limited.

Method used

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  • A kind of preparation method of seamless bonding polyurethane synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Preparation of polyurethane slurry

[0040] Preparation of polyurethane impregnating material:

[0041] Dimethylformamide DMF 240 kg

[0042] Water repellant F-3D 1kg

[0043] Polyester polyurethane resin SW-4008 100kg

[0044] Color paste BLPN-560 15kg

[0045] Preparation of polyurethane coating materials:

[0046] Dimethylformamide DMF 150kg

[0047] Hole regulator HY-607 1kg

[0048] Packing 15kg

[0049] Polyether polyurethane resin SW-4040RHA 120kg

[0050] Polyether polyurethane resin SW-5060RH 80kg

[0051] Polycarbonate polyurethane resin SW-410PC 50kg

[0052] Color paste BLPN-560 5kg

[0053] 2. Preparation of semi-finished products of buffed synthetic leather

[0054] Immerse the high-physical composite base fabric blended with thin woven fabric and non-woven fabric in polyurethane impregnation solution, squeeze the rollers, control according to the thickness of the cloth base, and then pre-coagulate (pre-coagulation conditions are temperature ...

Embodiment 2

[0057] 1. Preparation of polyurethane slurry

[0058] Preparation of polyurethane impregnating material:

[0059] Dimethylformamide DMF 200 kg

[0060]Water repellant F-3D 1kg

[0061] Polyester polyurethane resin SW-4008 100kg

[0062] Color paste BLPN-560 15kg

[0063] Preparation of polyurethane coating materials:

[0064] Dimethylformamide DMF 120kg

[0065] Hole regulator HY-607 1kg

[0066] Packing 15kg

[0067] Polyether polyurethane resin SW-4040RHA 110kg

[0068] Polyether polyurethane resin SW-5060RH 100kg

[0069] Polycarbonate polyurethane resin SW-410PC 40kg

[0070] Color paste BLPN-560 5kg

[0071] 2. Preparation of semi-finished products of buffed synthetic leather

[0072] After the polyurethane slurry is filtered, it is coated on the woven surface of the base fabric, dipped and coated, and then placed in a coagulation tank to solidify, washed and dried to obtain a wet-process synthetic leather semi-finished product. The speed is 8 m / min, the thickn...

Embodiment 3

[0075] Preparation of polyurethane impregnating material:

[0076] Dimethylformamide DMF 500 kg

[0077] Water repellant F-3D 3kg

[0078] Polyester polyurethane resin SW-4008 200kg

[0079] Color paste BLPN-560 15kg

[0080] Preparation of polyurethane coating materials:

[0081] Dimethylformamide DMF 300kg

[0082] Hole regulator HY-607 1kg

[0083] Packing 10kg

[0084] Polyether polyurethane resin SW-4040RHA 50kg

[0085] Polyether polyurethane resin SW-5060RH 150kg

[0086] Polycarbonate polyurethane resin SW-410PC 100kg

[0087] Color paste BLPN-560 10kg

[0088] Other processes are with embodiment 1.

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Abstract

The invention discloses a synthetic leather product used in the seamless bonding process of making sports shoes. The invention adopts special thin woven fabrics and non-woven fabrics with high physical property composite base fabrics, and coats the surface of the base fabrics with high peeling properties. Hydrolysis-resistant wet-process polyurethane slurry forms a polyurethane film on the surface of the composite base cloth after condensation, and then washes to replace the solvent, dries, and shapes to obtain a semi-finished product; this wet-process formula system has good permeability to the composite cloth base, and can be washed and dried Finally, the wet-process coating is thin and dense, the flatness of the crust is better, the wet-process crust has high mechanical strength, and good alkali resistance. The seamlessly bonded polyurethane synthetic leather produced by this method is mainly used in the parts of sports shoes under greater stress. The concept of "quantification" is light and comfortable to wear, which endows the product with strong functionality and comfortable wearing.

Description

technical field [0001] The invention relates to a method for preparing seamlessly bonded polyurethane synthetic leather. Background technique [0002] Traditional polyurethane synthetic leather products for sports and leisure shoes have shortcomings such as thick leather surface, easy peeling, wrinkled paper, poor setting effect, and leather surface shrinkage, which cannot meet the demand and the application range is limited. Because the seamless bonding process can directly bond the synthetic leather and the sneaker mesh, it greatly reduces the cost of manpower and material resources, and the seamless bonding polyurethane synthetic leather has a light and thin leather surface, good elasticity, good shaping effect and It is not easy to peel, and is gradually favored by major shoe factories in the world. Contents of the invention [0003] The present invention aims to provide a new type of seamless adhesive polyurethane synthetic leather and its preparation method. The se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14B32B33/00B32B27/06B32B5/02
Inventor 邢高瞻赵伟栋程艳西姚和平黄万里胡东卫陈周王海峰刘宏张本坤胡国金
Owner ANHUI ANLI MATERIAL TECH
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