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Aqueous polyurethane dry process transform-film synthetic leather and manufacturing method thereof

A water-based polyurethane, dry film transfer technology, applied in chemical instruments and methods, synthetic resin layered products, textiles and papermaking, etc., to achieve the effect of plumpness and good permeability

Inactive Publication Date: 2012-01-11
YANTAI LIANCHENG POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to improve the pollution in the production process of synthetic leather, and to meet the domestic and foreign market demand for non-polluting polyurethane dry-process film-transfer synthetic leather products, to provide an environmentally friendly, high-physical water-based polyurethane dry-process film-transfer synthetic leather and its Manufacturing method

Method used

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  • Aqueous polyurethane dry process transform-film synthetic leather and manufacturing method thereof
  • Aqueous polyurethane dry process transform-film synthetic leather and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A water-based polyurethane dry-process transfer film synthetic leather, comprising a bottom layer 1, an adhesive layer 2, a foam layer 3, and a surface layer 4 connected sequentially from bottom to top, and the bottom layer 1 is a base fabric bottom layer with a non-woven fabric as a skeleton , The adhesive layer 2, the foam layer 3, and the surface layer 4 are all made of polyurethane materials.

[0036] A kind of manufacture method of water-based polyurethane dry transfer film synthetic leather, comprises following technological process:

[0037] Non-woven fabric as the base fabric of the skeleton Coating polyurethane surface layer, foam layer and adhesive layer on the release paper to realize dry film transfer Paper leather separation or leather paper separation after aging Inspection and warehousing

[0038] 1. Base fabric: choose high physical property base fabric to meet the physical property requirements of transfer film leather;

[0039] The base fabric...

Embodiment 2

[0056] The difference between the manufacturing method of a kind of water-based polyurethane dry transfer film synthetic leather of the present embodiment and embodiment 1 is:

[0057] The water-based polyurethane resin slurry system for the surface layer of the dry transfer film is prepared as follows: in parts by weight, 100 parts of water-based polyurethane resin, 10 parts of water-based color paste or 5 parts of pigment, 2 parts of peeling accelerator, 10 parts of leveling agent, defoaming 10 parts of agent, 10 parts of thickener, 10 parts of anti-sticking agent;

[0058] The water-based polyurethane slurry system for the foaming layer of the dry transfer film is formulated as follows: in parts by weight, 100 parts of water-based polyurethane resin, 15 parts of water-based color paste or 5 parts of pigment, and 10 parts of leveling agent;

[0059] The water-based polyurethane resin slurry system for the adhesive layer of the dry transfer film is formulated as follows: in p...

Embodiment 3

[0063] The difference between the manufacturing method of a kind of water-based polyurethane dry transfer film synthetic leather of the present embodiment and embodiment 1 is:

[0064] Base fabric: Non-stationary island (about 800 islands) nylon superfine fiber base fabric made of sea-island structure fibers impregnated with polyurethane resin and then decremented by toluene.

[0065] The water-based polyurethane resin slurry system for the surface layer of the dry transfer film is formulated as follows: in parts by weight, 100 parts of water-based polyurethane resin, 30 parts of pigment, and 10 parts of crosslinking agent;

[0066] The water-based polyurethane slurry system of the dry-process transfer film foaming layer is formulated as follows: in parts by weight, 100 parts of water-based polyurethane resin, 3 parts of pigment;

[0067] The water-based polyurethane resin slurry system for the dry transfer film adhesive layer is formulated as follows: according to parts by we...

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Abstract

The invention which relates to an aqueous polyurethane dry process transform-film synthetic leather and a manufacturing method thereof belongs to the technical field of synthetic leathers and manufacturing methods thereof. The manufacturing method of the aqueous polyurethane dry process transform-film synthetic leather is characterized in that the manufacturing method comprises the following steps: 1, preparing a base cloth which treats a non-woven fabric as the skeleton; 2, coating a superficial layer, a foaming layer and a bonding layer on release paper to realize the dry process transform-film; 3, carrying out leather-paper separation after the paper-leather separation or slaking; and 4, examining and warehousing. Compared with solvent-based polyurethane, the aqueous polyurethane dry process transform-film synthetic leather has equivalent physical properties, and accords with application demands, environmentally friendly aqueous polyurethane is used, a product (the aqueous polyurethane dry process transform-film synthetic leather) contains no organic solvents which are harmful to environmental protection, a DMF recovery operation which is required in the production process of solvent-based products is reduced, the production process is simplified, and energy saving and environmental protection are realized, so the aqueous polyurethane dry process transform-film synthetic leather which adapts to foreign restrictive requirements on environment friendly polyurethane synthetic leathers and allows the production personnel demand, the damage to the personnel, and the production cost to be reduced has a strong market competitiveness.

Description

technical field [0001] The invention relates to a water-based polyurethane dry film transfer synthetic leather and a manufacturing method, belonging to the technical field of synthetic leather and its manufacturing method. Background technique [0002] In the production of traditional PU synthetic leather, solvent-based polyurethane resin is used as the basic raw material for the base layer and surface layer of traditional synthetic leather products, and the annual demand for polyurethane resin has exceeded 2 million tons. Most of its production process uses toluene, xylene, acetone, butanone (MEK), acetic acid, ethyl ester and dimethylformamide (DMF) as solvents. The amount of solvent used accounts for more than 60% of the amount of resin used. About 50% of the solvents in the dry-laid leather production process cannot be recovered and will be discharged into the surrounding air. This not only causes a large amount of waste of organic solvents, but also inevitably seriousl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12B32B27/12B32B27/40B32B7/12
Inventor 吕宁华刘振波
Owner YANTAI LIANCHENG POLYMER MATERIAL
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