Dyeing-facilitating sulfonyl polyurethane suede artificial leather manufacturing method

A technology of sulfonyl polyurethane and a manufacturing method, which is applied in textiles and papermaking, textile material processing, liquid/gas/steam textile material processing, etc., and can solve the problem of single color coating, monotonous gloss and color, and partial coloring of coating. Hard and other problems, to achieve the effect of bright colors, small color migration, and short dyeing time

Inactive Publication Date: 2017-05-31
JIANGYIN YONGLONG PLASTICS
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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 easy-to-dye sulfonyl polyurethane suede artificial leather manufacturing method is to use sulfonyl solvent-based polyurethane resin to configure the finishing slurry, and then apply the finishing slurry to the surface of the suede artificial leather base cloth. The aforementioned finishing is made by dry method of release paper Technology The sulfonyl solvent-based polyurethane surface layer is attached to the semi-finished suede artificial leather wet process, and then the dyed polyurethane suede artificial leather is obtained through pad dyeing treatment.

[0020] Finishing paste comprises the following components by mass:

[0021] Sulfonyl solvent-based polyurethane resin 100 parts

[0022] Dimethylformamide 100 parts

[0023] Acetone 80 parts.

Embodiment 2

[0025] The method for making sulfonyl polyurethane suede artificial leather which is easy to dye is to use sulfonyl solvent-based polyurethane resin to configure the coating slurry, and then coat the coating slurry on the surface of the suede artificial leather base cloth. The type polyurethane finishing slurry is applied to the surface of the dry semi-finished suede artificial leather, and then dyed polyurethane suede artificial leather is obtained through jigger dyeing.

[0026] Finishing paste comprises the following components by mass:

[0027] Sulfonyl solvent-based polyurethane resin 100 parts

[0028] 80 parts of dimethylformamide

[0029] 60 parts of acetone.

Embodiment 3

[0031] The manufacturing method of sulfonyl polyurethane suede artificial leather which is easy to be dyed is to use sulfonyl solvent-based polyurethane resin to configure the finishing slurry, and then coat the finishing slurry on the surface of the suede artificial leather base cloth. The polyurethane suede surface layer is coated on the surface of the semi-finished suede artificial leather base cloth, and then dyed polyurethane suede artificial leather is obtained through air-flow dyeing treatment.

[0032] Finishing paste comprises the following components by mass:

[0033] Sulfonyl solvent-based polyurethane resin 100 parts

[0034] 80 parts of dimethylformamide

[0035] Acetone 100 parts.

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PUM

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Abstract

The invention relates to a dyeing-facilitating sulfonyl polyurethane suede artificial leather manufacturing method. Dyed polyurethane suede artificial leather is obtained by preparing coating slurry by using sulfonyl solvent type polyurethane resin, then coating the surface of suede artificial leather base cloth with the coating slurry, and carrying out dyeing treatment. The coating slurry is prepared from the following components in parts by mass: 100 parts of the sulfonyl solvent type polyurethane resin, 20 to 120 parts of dimethyl formamide and 20 to 120 parts of acetone. As an artificial leather surface coating material, the sulfonyl solvent type polyurethane resin can be dyed through a dye; after being dyed, the sulfonyl solvent type polyurethane resin can achieve a color effect of the dye; therefore, a product has the characteristics of bright color, high coating permeability, high surface color fastness and low color migration property.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of polyurethane suede artificial leather, and in particular relates to a method for manufacturing sulfonyl polyurethane suede artificial leather which is easy to dye. Background technique [0002] The artificial leather with dye coloring effect on the surface is bright in color and high in transparency. It is popular in fashion products such as bags and women’s shoes. However, traditional synthetic leather is usually colored by pigment, which cannot achieve the effect of dye coloring. Although it can The manufacturing method of adding dye water coloring agent to the coating material is used to obtain the dye coloring effect, but this manufacturing method will bring serious color migration, poor color fastness, high cost and other problems, which restrict the use of the product. [0003] In the traditional synthetic leather manufacturing process, it is necessary to add color paste, tone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06B3/18D06B3/32D06B23/00
CPCD06N3/14D06B3/18D06B3/32D06B23/00
Inventor 王东
Owner JIANGYIN YONGLONG PLASTICS
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