Novel environmentally-friendly aqueous PU leather

A water-based, environmentally friendly technology, applied in layered products, synthetic resin layered products, textiles and papermaking, etc., can solve the problems of difficult to achieve complete environmental protection, low production efficiency and high production cost of environmentally friendly water-based PU leather, and achieve a thick feel. , The effect of strong adhesion and low price

Active Publication Date: 2011-02-23
浙江昶丰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention lies in the low production efficiency of environmental protection water-based PU leather in the prior art, it is difficult to achieve complete environmental protection, and the problem of high production cost, thereby providing a kind of high-efficiency production, complete environmental protection and low production cost. New environmental protection water-based PU leather

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The PU leather of the present embodiment comprises a surface layer, an adhesive layer and a base cloth, and the surface layer accounts for 15% by mass percentage, the adhesive layer accounts for 55%, and the base cloth accounts for 30%.

[0016] The water-based polyurethane resin with a mass percentage of 98% and the water-based pigment with a mass percentage of 2% are uniformly mixed to obtain a surface layer raw material composition.

[0017] Coat the surface layer raw material composition on the release paper with a thickness of 0.1-0.25mm, dry it at 80-130°C for 1-2min, cool the cooling roller, and coat the adhesive layer on the product obtained in the previous step The raw material is water-based polyurethane acrylic resin, the thickness is 0.2-0.3mm, the base cloth is pasted on the obtained adhesive layer, dried at 110-150°C for 1-2min, cooled and peeled off the release paper to obtain water-based PU leather products , the production speed of the product is 18 met...

Embodiment 2

[0019] The PU leather of the present embodiment comprises a surface layer, an adhesive layer and a base cloth, and the surface layer accounts for 30% by mass percentage, the adhesive layer accounts for 15%, and the base cloth accounts for 55%.

[0020] The water-based polyurethane resin with a mass percentage of 95% and the color paste with a mass percentage of 5% are uniformly mixed to obtain a surface layer raw material composition.

[0021] Coat the surface layer raw material composition on the release paper with a thickness of 0.1-0.25mm, dry it at 80-130°C for 1-2min, cool the cooling roller, and coat the adhesive layer on the product obtained in the previous step The raw material is water-based polyurethane acrylic resin, the thickness is 0.2-0.3mm, the base cloth is pasted on the obtained adhesive layer, dried at 110-150°C for 1-2min, cooled and peeled off the release paper to obtain water-based PU leather products , the production speed of the product is 14 meters per ...

Embodiment 3

[0023] The PU leather of the present embodiment includes a surface layer, an adhesive layer and a base cloth. More preferably, the surface layer accounts for 35% by mass, the adhesive layer accounts for 45%, and the base cloth accounts for 20%.

[0024] Coat the surface layer raw material water-based polyurethane resin on the release paper with a thickness of 0.1-0.25mm, dry it at 80-130°C for 1-2min, and after cooling with the cooling roller, coat the adhesive layer raw material on the product obtained in the previous step Water-based polyurethane acrylic resin, with a thickness of 0.2-0.3 mm, the base cloth is pasted on the obtained adhesive layer, dried at 110-150 ° C for 1-2 minutes, cooled and peeled off the release paper to obtain water-based PU leather products, The production vehicle speed of described product is 16 meters per minute.

[0025] In this embodiment, the water-based polyurethane acrylic resin bonding layer accounts for 45% of the PU leather mass, so the pr...

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PUM

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Abstract

The invention relates to novel environmentally-friendly aqueous PU leather, which comprises a surface layer, an adhesive layer and a backer. The surface layer host is aqueous polyurethane resin, the adhesive layer host is an aqueous polyurethane acrylic resin; a middle layer is further arranged between the surface layer and the adhesive layer, the middle layer host is aqueous polyurethane resin; 2 to 10 mass percent of aqueous pigment is between the surface layer and the middle layer. The invention solves the problems that the production efficiency of the environmentally-friendly aqueous PU leather is low and the full environment protection is difficult to realize in the prior art, thereby providing novel environmentally-friendly aqueous PU leather with highly efficient production.

Description

technical field [0001] The invention relates to a novel environment-friendly water-based polyurethane artificial leather, namely a novel environment-friendly water-based PU leather, in particular to a novel environment-friendly water-based PU leather capable of efficient production. Background technique [0002] Most of the water-based PU leather raw materials produced at this stage are water-based polyurethane resins. The PU leather made of water-based polyurethane resins has the general performance requirements of synthetic leather, and has a high degree of imitation leather and good water permeability. At the same time, water is used as a solvent. It replaces a large number of toxic organic solvents such as DMF and acetone. There is no toxic and harmful gas emission during production and processing. The product is non-flammable, non-toxic, and non-polluting, which fundamentally eliminates the toxicity of solvent-based PU resin paste. However, there are certain defects in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/12D06N3/14
Inventor 邵晨旭
Owner 浙江昶丰新材料有限公司
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