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Preparation method of water-based ecological leather

An ecological and water-based technology, applied in textiles and paper making, etc., can solve the problems of DMF easily exceeding the standard, polluting the environment, endangering health, etc., and achieving the effect of excellent elasticity, good air permeability and pollution elimination.

Inactive Publication Date: 2020-10-09
QINGYUAN QILI SYNTHETIC LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a water-based ecological leather and its preparation method to solve the problems that the existing wet polyurethane synthetic leather process uses a large amount of organic solvents, pollutes the environment, and the DMF in the synthetic leather is easy to exceed the standard, which is harmful to health.

Method used

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  • Preparation method of water-based ecological leather

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Experimental program
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Effect test

Embodiment 1

[0029] see figure 1 , the preparation method of water-based ecological leather provided by the invention, it may further comprise the steps:

[0030] S1. Prepare the base cloth, pretreat the base cloth with the treatment liquid, and dry and iron the pretreated base cloth;

[0031] S2. Take the following raw materials by weight to prepare water-based polyurethane synthetic leather foam slurry: 70 parts of water-based polyurethane, 0.2 parts of dispersant, 2 parts of foam stabilizer, 0.2 parts of leveling agent, 2 parts of wetting agent, and 3 parts of thickener , 8 parts of mica powder, 10 parts of polypropylene powder and 6 parts of water-based color paste, water-based polyurethane, dispersant, leveling agent, wetting agent, thickener, mica powder, polypropylene powder and water-based color paste The raw materials are pre-mixed in the stirring tank, and after the stirring is completed, the pre-mixed slurry is bubbled by a bubble generator, and the water-based polyurethane syn...

Embodiment 2

[0044] see figure 1 , the preparation method of the water-based ecological leather provided by the invention comprises the following steps:

[0045] S1. Prepare the base cloth, pretreat the base cloth with the treatment liquid, and dry and iron the pretreated base cloth;

[0046] S2. Take the following raw materials by weight to prepare water-based polyurethane synthetic leather foaming slurry: 80 parts of water-based polyurethane, 0.3 parts of dispersant, 3 parts of foam stabilizer, 0.4 parts of leveling agent, 1.2 parts of wetting agent, and 2 parts of thickener , 7 parts of mica powder, 9 parts of polypropylene powder and 5 parts of water-based color paste, water-based polyurethane, dispersant, leveling agent, wetting agent, thickener, mica powder, polypropylene powder and water-based color paste The raw materials are pre-mixed in the stirring tank, and after the stirring is completed, the pre-mixed slurry is bubbled by a bubble generator, and the water-based polyurethane ...

Embodiment 3

[0058] see figure 1 , the preparation method of water-based ecological leather provided by the invention comprises the following steps:

[0059] S1. Prepare the base cloth, pretreat the base cloth with the treatment liquid, and dry and iron the pretreated base cloth;

[0060] S2. Take the following raw materials by weight to prepare water-based polyurethane synthetic leather foaming slurry: 80 parts of water-based polyurethane, 0.5 parts of dispersant, 4 parts of foam stabilizer, 0.4 parts of leveling agent, 1.5 parts of wetting agent, and 1.5 parts of thickener , 7 parts of mica powder, 8 parts of polypropylene powder and 5 parts of water-based color paste, water-based polyurethane, dispersant, leveling agent, wetting agent, thickener, mica powder, polypropylene powder and water-based color paste The raw materials are pre-mixed in the stirring tank, and after the stirring is completed, the pre-mixed slurry is bubbled by a bubble generator, and the water-based polyurethane sy...

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Abstract

The invention discloses a preparation method of water-based ecological leather. The preparation method comprises the following steps that S1, basic cloth is prepared, the basic cloth is pretreated through treatment liquid, and the pretreated basic cloth is subjected to roll drying and ironing treatment; and S2, raw materials which comprise, by weight, 70-100 parts of water-based polyurethane, 0.2-0.8 part of a dispersion agent, 2-6 parts of a foam stabilizer, 0.2-1 part of a flatting agent, 1-2 parts of a wetting agent, 0.5-3 parts of a thickening agent, 5-8 parts of mica powder, 6-10 parts ofpolypropylene powder and 3-6 parts of water-based color paste are taken to prepare water-based polyurethane synthetic leather foaming slurry. The invention further discloses a product of the water-based ecological leather. The prepared water-based polyurethane synthetic leather can eliminate pollution from sources, the environment-friendly water-based color paste, auxiliaries and packing are adopted, the leather is safe, non-poisonous and environment-friendly, excellent elasticity is achieved after film forming, the remarkable durability and hydrolysis resistance, high tearing resistance andhigh scraping and wearing resistance are achieved, and the leather has the touch feeling similar to the dermis and is good in moisture permeability and air permeability.

Description

technical field [0001] The invention relates to the technical field of synthetic leather preparation, in particular to a water-based ecological leather and a preparation method thereof. Background technique [0002] Polyurethane synthetic leather belongs to the category of polyurethane elastomers. It has soft and natural luster, soft touch, and a strong leather-like appearance. It has excellent mechanical properties such as excellent adhesion to substrates, wear resistance, flex resistance, and aging resistance. At the same time, it also has the advantages of good cold resistance, breathability, washability, convenient processing, and low price. It is the most ideal substitute for natural leather. [0003] The wet-process polyurethane synthetic leather process mainly makes the slurry fully penetrate into the gap of the non-woven fabric through extrusion, and then puts the non-woven fabric in the coagulation bath, and uses the "DMF-HO" system to make the DMF continuously diss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/14D06N3/0077D06N3/0043D06N3/0063D06N3/0061D06N3/0088D06N3/0056D06N2211/28D06N2209/1635D06N2209/143D06N2209/103D06N2209/105D06N2209/126D06N2209/123
Inventor 刘爱明刘军郑重罗志清梁勇劲
Owner QINGYUAN QILI SYNTHETIC LEATHER