Manufacturing method of carboxyl-type solvent-type polyurethane resin artificial leather

A technology of polyurethane resin and manufacturing method, which is applied in the direction of textiles, papermaking, and layered products. It can solve the problems of single color of coating, hard hand feeling of coating coloring, monotonous gloss and color, etc., and achieve bright colors and short dyeing time. , small effect of color migration

Inactive Publication Date: 2017-05-31
WUXI HUALIAN PLASTIC PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Coloring substances such as dyes are combined to give different colors to the finished leather, but the coloring of the coating feels hard, and once the coloring formula is determined, the coating presents a single color, the gloss and color are monotonous, and there is no layering such as depth, light and shade, new and old.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The manufacturing method of carboxyl-based solvent-based polyurethane resin artificial leather is to use carboxyl-based solvent-based polyurethane resin to prepare a coating slurry, and then coat the coating slurry on the surface of the artificial leather base cloth. The solvent-based polyurethane surface layer is attached to the semi-finished artificial leather wet-processed, and then the dyed polyurethane artificial leather is obtained by pad dyeing.

[0020] The finishing paste includes the following components in parts by mass:

[0021] Carboxyl-based solvent-based polyurethane resin 100 parts

[0022] 100 parts of dimethylformamide

[0023] 80 parts of acetone.

Embodiment 2

[0025] The method for manufacturing carboxyl-based solvent-based polyurethane resin artificial leather is to use a carboxyl-based solvent-based polyurethane resin to prepare a coating slurry, and then coat the coating slurry on the surface of an artificial leather base cloth. The surface of artificial leather semi-finished product is coated with material, and then dyed polyurethane artificial leather is obtained after jigging treatment.

[0026] The finishing paste includes the following components in parts by mass:

[0027] Carboxyl-based solvent-based polyurethane resin 100 parts

[0028] 80 parts of dimethylformamide

[0029] 60 parts of acetone.

Embodiment 3

[0031] The method for manufacturing carboxyl-based solvent-based polyurethane resin artificial leather is to use a carboxyl-based solvent-based polyurethane resin to prepare a coating slurry, and then coat the coating slurry on the surface of an artificial leather base cloth. The layer is applied to the semi-finished surface of the artificial leather base cloth, and then the dyed polyurethane artificial leather is obtained by air dyeing.

[0032] The finishing paste includes the following components in parts by mass:

[0033] Carboxyl-based solvent-based polyurethane resin 100 parts

[0034] 80 parts of dimethylformamide

[0035] 100 parts of acetone.

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PUM

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Abstract

The invention relates to a manufacturing method of carboxyl-type solvent-type polyurethane resin artificial leather, wherein coating slurry is prepared from carboxyl-type solvent-type polyurethane resin and then is used for coating the surface of an artificial leather basic cloth, and then dyeing treatment is carried out to produce dyed polyurethane artificial leather. The coating slurry includes, by mass, 100 parts of the carboxyl-type solvent-type polyurethane resin, 20-120 parts of dimethylformamide, and 20-120 parts of acetone. The carboxyl-type solvent-type polyurethane resin is used as the coating material for the surface of the artificial leather, so that the dyeing treatment can be carried out by means of a dye. After the dyeing treatment, the artificial leather is dyed, so that the product is colorful, has good coating permeability, has high surface color fastness, and is low in color migration.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of polyurethane resin artificial leather, in particular to a preparation method of carboxyl-based solvent-type polyurethane resin artificial leather which is convenient for dyeing. Background technique [0002] The artificial leather with dye coloring effect on the surface has bright colors and high transparency. It is very popular in fashion products such as luggage, women's shoes, etc. However, traditional synthetic leather is usually colored by pigments, which cannot achieve the effect of dye coloring. The manufacturing method of adding dye water colorant to the coating material is used to obtain the dye coloring effect, but this manufacturing method will bring serious color migration, poor color fastness, and high cost and price, which restricts the use of the product. [0003] In the traditional synthetic leather manufacturing process, it is necessary to add color paste, toner and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/14B32B33/00
CPCD06N3/00B32B33/00D06N3/14D06N3/142
Inventor 季建良
Owner WUXI HUALIAN PLASTIC PROD CO LTD
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