Manufacturing method of suede leather polyurethane synthetic leather with high?physical properties

A manufacturing method and synthetic leather technology, applied in textiles and papermaking, fabric surface trimming, roughening, etc., can solve the problems of inferior physical properties, low production efficiency, and long process flow, etc., to achieve a strong surface feel and increase production efficiency , reduce the effect of wet process

Active Publication Date: 2014-01-22
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The imitation leather suede synthetic leather manufactured by traditional technology has a long process, complex equipment, high energy consumption and low production efficiency; and the products manufactured by traditional technology have poor appearance and feel of genuine leather, and their physical properties are far inferior to genuine leather, or even lower than that of genuine leather. General ordinary synthetic leather

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of manufacture method of high physical property suede polyurethane synthetic leather, comprises the following steps:

[0019] 1. Preparation of semi-finished synthetic leather: apply polyurethane foam slurry to the base fabric, and then dry it in an oven.

[0020] The polyurethane foam slurry formula is (by weight):

[0021] Foaming resin ST-2030 80 parts

[0022] Protein resin 15 parts

[0023] Dimethylformamide 100 parts

[0024] Foaming agent 920-DU40 1.5 parts

[0025] Foaming agent 920-DU80 2.5 parts

[0026] 12 parts of solvent-based color paste

[0027] Silicone feel agent 1.5 parts.

[0028] Set the temperature of the oven to a certain gradient, the specific temperature is: 80°C, 130°C, 150°C, 130°C, each temperature is baked for 30 seconds in turn, and the foaming process is completed in 2 minutes.

[0029] 2. Sanding treatment: The synthetic leather semi-finished product that has completed the foaming process is first ground with a multi-roller g...

Embodiment 2

[0033] A kind of manufacture method of high physical property suede polyurethane synthetic leather, comprises the following steps:

[0034] 1. Preparation of semi-finished synthetic leather: apply polyurethane foam slurry to the base fabric, and then dry it in an oven.

[0035] The polyurethane foam slurry formula is (by weight):

[0036] Foaming resin ST-2030 80 parts

[0037] 10 servings of protein resin

[0038] Dimethylformamide 100 parts

[0039] Foaming agent 920-DU40 0.5 parts

[0040] Foaming agent 920-DU80 3 parts

[0041] Solvent-based color paste 5 parts

[0042] Silicone feel agent 0.5 part.

[0043] Set the temperature of the oven to a certain gradient, the specific temperature is: 80°C, 130°C, 150°C, 130°C, each temperature is baked for 30 seconds in turn, and the foaming process is completed in 2 minutes.

[0044] 2. Sanding treatment: The synthetic leather semi-finished product that has completed the foaming process is first ground with a multi-roller gr...

Embodiment 3

[0049] A kind of manufacture method of high physical property suede polyurethane synthetic leather, comprises the following steps:

[0050] 1. Preparation of semi-finished synthetic leather: apply polyurethane foam slurry to the base fabric, and then dry it in an oven.

[0051] The polyurethane foam slurry formula is (by weight):

[0052] Foaming resin ST-2030 80 parts

[0053] Protein resin 20 parts

[0054] Dimethylformamide 100 parts

[0055] Foaming agent 920-DU40 1.5 parts

[0056] Foaming agent 920-DU80 4 parts

[0057] 15 parts of solvent-based color paste

[0058] Silicone feel agent 2.5 parts.

[0059] Set the temperature of the oven to a certain gradient, the specific temperature is: 80°C, 130°C, 150°C, 130°C, each temperature is baked for 30 seconds in turn, and the foaming process is completed in 2 minutes.

[0060] 2. Sanding treatment: The synthetic leather semi-finished product that has completed the foaming process is first ground with a multi-roller gri...

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PUM

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Abstract

The invention discloses a manufacturing method of a suede leather polyurethane synthetic leather with high?physical properties. The manufacturing method includes preparation of a semi-finished product of the synthetic leather, sanding treatment and napping treatment. The preparation of semi-finished product of the synthetic leather is carried out by coating a polyurethane foaming slurry on a base cloth, and then drying by an oven. The sanding treatment is carried out by first conducting surface grinding on the semi-finished product of the synthetic leather subjected to the foaming process by a multi-roll grinding wheel, and adjusting the amount of grinding by selecting sandpaper and rotation speed of the grinding wheel. The napping treatment is carried out by conducting napping on the suede leather sanding subjected to sanding treatment by using a carbon fiber napping roller. The manufacturing method of the suede leather polyurethane synthetic leather with high?physical properties provided by the invention is simple; and coating treatment is carried out directly on the base cloth to reduce the operations of a traditional wet process, so as to substantially increase the production efficiency and effectively reduce material and energy consumption cost.

Description

technical field [0001] The invention relates to a method for manufacturing polyurethane synthetic leather, in particular to a method for manufacturing high-property suede polyurethane synthetic leather. Background technique [0002] Polyurethane synthetic leather (PU synthetic leather) is a kind of artificial synthetic leather that uses various cloth bases as substrates, and coats polyurethane resin on the substrates to impart various patterns and patterns. In order to imitate the suede effect of the surface of the leather split leather, the traditional manufacturing methods usually include: first make the wet base, and then perform secondary processing on the back of the wet base: flocking, planting leather powder, and foaming of sheepbucks Etc., and then grind the crust leather to achieve a velvet effect similar to genuine leather. The imitation leather suede synthetic leather manufactured by traditional technology has a long process, complex equipment, high energy consum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12D06C11/00
Inventor 张宁华笪丽红刘兵迟红梅王义峰张玉萍黄万里苏星高兵贺力徐帆
Owner ANHUI ANLI MATERIAL TECH
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