Method for producing antifouling PU synthetic leather

A manufacturing method and synthetic leather technology, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of easy pollution to the environment, can only be washed with water, and easy to be contaminated with dirt, so as to achieve superior antifouling performance and reduce environmental hazards Effect

Inactive Publication Date: 2011-11-09
义乌市鑫挺人造革有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary PU synthetic leather, due to its own structural characteristics, has poor antifouling performance, is easy to be contaminated with dirt, and is difficult to clean after being contaminated with dirt. If it is contaminated during use, it needs to be cleaned with water and detergent. Avoid Gasoline scrubbing, not dry cleaning, only water washing, and the washing temperature should not exceed 40 degrees, the cleaning process is cumbersome, and the cleaning agent for PU synthetic leather is highly corrosive, and it is easy to pollute the environment after use
[0003] Chinese patent application (application number: CN200610035821.4) discloses a processing method of wet PU synthetic leather, which has simple processing technology and low production cost, but the PU synthetic leather produced by this method has no antifouling performance. improved, the surface is not prone to pick up dirt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of manufacture method of antifouling PU synthetic leather, comprises the following steps:

[0029] ① Making wet PU semi-finished basses:

[0030] a. configure PU slurry, the components of the PU slurry are as follows, all in parts by weight:

[0031] Solvent-based PU: 100 parts, lignocellulose 30 parts, dimethylformamide: 90 parts, color paste: 2 parts, sorbitan oleate: 0.8 parts, diisooctyl maleate sulfonic acid Sodium: 1.5 parts;

[0032] b. Select the woven fabric as the base fabric, inspect the woven fabric, and use a coating knife to coat the PU slurry on the inspected woven fabric. The gap between the coating knife is controlled at 15mm, and the coated woven fabric is Solidify in the coagulation tank, in the described coagulation tank, be the mixed solution of dimethylformamide and water, the concentration of dimethylformamide is 20%;

[0033] c. Carry out 12 water washings to the woven fabric after step b, place it in an environment with a temperature o...

Embodiment 2

[0041] A kind of manufacture method of antifouling PU synthetic leather, comprises the following steps:

[0042] ① Making wet PU semi-finished basses:

[0043] a. configure PU slurry, the components of the PU slurry are as follows, all in parts by weight:

[0044] Solvent-based PU: 100 parts, lignocellulose 60 parts, dimethylformamide: 120 parts, toner: 25 parts, sorbitan oleate: 2 parts, dioctyl maleate sulfonic acid Sodium: 3 parts;

[0045] b. Select the woven fabric as the base fabric, inspect the woven fabric, and use a coating knife to coat the PU slurry on the inspected woven fabric. The gap between the coating knife is controlled at 20mm, and the coated woven fabric is placed Solidify in the coagulation tank, in the described coagulation tank, be the mixed solution of dimethylformamide and water, the concentration of dimethylformamide is 25%;

[0046] c. Carry out 12 water washes to the woven fabric after step b, and then dry the washed woven fabric in an environmen...

Embodiment 3

[0054] A kind of manufacture method of antifouling PU synthetic leather, comprises the following steps:

[0055] ① Making wet PU semi-finished basses:

[0056] a. configure PU slurry, the components of the PU slurry are as follows, all in parts by weight:

[0057] Solvent-based PU: 100 parts, lignocellulose 30 parts, dimethylformamide: 90 parts, color paste: 2 parts, sorbitan oleate: 0.8 parts, diisooctyl maleate sulfonic acid Sodium: 3 parts;

[0058] b. Select the woven fabric as the base fabric, inspect the woven fabric, and use a coating knife to coat the PU slurry on the inspected woven fabric. The gap between the coating knife is controlled at 15mm, and the coated woven fabric is Solidify in the coagulation tank, in the described coagulation tank, be the mixed solution of dimethylformamide and water, the concentration of dimethylformamide is 20%;

[0059] c. Carry out 12 water washes to the woven fabric after step b, and then dry the washed woven fabric in an environm...

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PUM

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Abstract

The invention, relating to the technical field of producing PU synthetic leather, relates to a method for producing antifouling PU synthetic leather, comprising the three steps of making a wet-process PU semi-finished base, dry-process veneering on the wet-process PU semi-finished base and antifouling printing processing. The produced antifouling PU synthetic leather has a surface which is not easy to be contaminated, has superior antifouling performance, and is cleaned easily without using special cleaning agent when the leather is contaminated by contamination, so as to reduce the damage tothe environment.

Description

technical field [0001] The invention relates to the technical field of PU synthetic leather production, in particular to a method for manufacturing antifouling PU synthetic leather. Background technique [0002] In China, people are used to calling the artificial leather produced with PU resin and non-woven fabric as PU synthetic leather (synthetic leather for short). After continuous research and development, PU synthetic leather has grown rapidly in terms of product quality, variety, and output. Its performance is getting closer and closer to natural leather, and some properties even exceed natural leather. It plays a very important role in human's daily life. PU synthetic leather is used to replace PVC artificial leather. Its price is higher than PVC artificial leather. In terms of chemical structure, it is closer to leather fabrics. It does not use plasticizers to achieve softness, so it will not harden and change. It is crisp, and has the advantages of rich colors and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06M15/643
Inventor 潘公挺李华臧德华娄臻
Owner 义乌市鑫挺人造革有限公司
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