Method for preparing printed pattern PU/PVC artificial leather with printed pattern by dry method and PU/PVC artificial leather

A technology for printing patterns and manufacturing methods, applied in chemical instruments and methods, textiles and papermaking, fabric kneading/softening treatment, etc., can solve the problem of affecting the texture of PU/PVC artificial leather, affecting the production rate of products, and the unnatural look and feel of leather and other problems, to achieve natural look and feel, unique printing effect, and reduce the effect of staff

Inactive Publication Date: 2011-11-02
FUJIAN POLYTECH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This general method has the following defects: First, because the patterned roller is used to print on the surface of the artificial leather, the pattern floats on the artificial leather, which affects the texture of the PU / PVC dry-process artificial leather leather, resulting in an unnatural look and feel of the leather; second, the printed pattern After use, the pattern is easy to fall off due to friction; the third is that the production process increases, and the produced PU / PVC dry-laid artificial leather products are printed again, which affects the product rate of the produced products

Method used

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  • Method for preparing printed pattern PU/PVC artificial leather with printed pattern by dry method and PU/PVC artificial leather
  • Method for preparing printed pattern PU/PVC artificial leather with printed pattern by dry method and PU/PVC artificial leather
  • Method for preparing printed pattern PU/PVC artificial leather with printed pattern by dry method and PU/PVC artificial leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A printing pattern PU / PVC dry-process artificial leather manufacturing method: 1. Buy the release paper with the best-selling texture in the market, using solvent-based polyurethane fabric resin, polyurethane laminating material, polyurethane printing material, polyvinyl chloride foam paste resin, and Suitable base cloth. The resin viscosity of the polyurethane fabric is 100000~200,000 cps, the content of non-volatile matter is 25%-35%, the viscosity of polyurethane printing resin is 500-3000 cps, and the content of non-volatile matter is 20%-50%. Polyurethane adhesive resin The viscosity is 60,000 to 120,000 cps, and the non-volatile content is 35% to 50%. The polyvinyl chloride resin is an emulsion polymerization resin with a K value of 65 to 75.

[0028] 2. Polyurethane color coating. Using the diluent solvents dimethylformamide DMF, toluene TOL and methyl ethyl ketone MEK, the polyurethane PU is diluted to a diluent with a viscosity of 1300-1500 cps, and the weight r...

Embodiment 2

[0034] The rest of the steps in the manufacturing method of the printed pattern PU / PVC dry artificial leather of this embodiment are the same as in embodiment 1, which is to add the kneading process after release: the obtained semi-finished product is placed in a kneading machine at a temperature of 50°C and kneaded After 40 hours of tattooing, the rubbing procedure is completed.

[0035] The parts not described in this embodiment are the same as the first embodiment.

Embodiment 3

[0037] This embodiment is basically the same as Embodiment 2, except that the obtained semi-finished product is placed in a kneading machine at a temperature of 70° C., and kneading the kneading process for 30 hours is completed.

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Abstract

The invention discloses a method for preparing PU / PVC artificial leather with a printed pattern by a dry method and PU / PVC artificial leather. The method comprises the following steps that: the following printing step is introduced to the main machine production equipment in the previous step, the structure of the artificial leather is changed, and the structure of the artificial leather orderly comprises a PU fabric layer, a printed pattern layer, a PVC foaming layer, a PU bonding layer and a base fabric layer. The method and the product have the advantages that: the printed pattern is arranged on the section of the artificial leather, and indistinctly emerges on the surface of the artificial leather, so that the artificial leather is beautiful and graceful and has natural impression and unique printing effect; and when the artificial leather is used, the pattern is not dropped due to friction, so that the beauty of the artificial leather is not affected.

Description

Technical field [0001] The invention relates to a method for manufacturing artificial leather, in particular to a method for manufacturing printed pattern dry PU / PVC artificial leather and PU / PVC artificial leather. Background technique [0002] In the artificial leather manufacturing industry, the basic steps of PU / PVC dry-method artificial leather manufacturing commonly used with printed patterns are: First, prepare the materials: provide release paper with three-dimensional leather texture, base cloth, polyurethane fabric, and PVC foam paste. Resins and polyurethane adhesive resins, etc.; secondly, it is produced by the main machine: that is, the polyurethane resin of the selected and formulated color is coated on the surface of the release paper, and after drying, the polyvinyl chloride foam paste resin is coated on the polyurethane surface , And then coat the polyurethane adhesive on the foamed polyvinyl chloride foamed paste resin, and affix it to the base fabric; when the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/18D06C19/00B32B27/12B32B27/08B32B27/30B32B27/40B32B37/14B32B38/14B29C44/32
Inventor 苏奕富
Owner FUJIAN POLYTECH TECH CO LTD
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