Water PU cracking resin for synthesizing leather

A technology of cracking resin and synthetic leather, which is applied in the field of water-based PU cracking resin, which can solve the problem of poor synthetic leather visual effect, viscosity, stability, hand touch, etc., the bottom layer of synthetic leather dissolves, and the synthetic leather feels bad. and other problems, to achieve the effect of excellent cracking effect, solvent resistance of the coating, and good hand feeling

Inactive Publication Date: 2009-12-30
JIANGSU BAOZE POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The organic solvent contained in the solvent-based cracking resin will cause the bottom layer of synthetic leather or artificial leather to dissolve, and the treated synthetic leather will not feel good;
[0005] 2. The organic solvent contained in the solvent-based cracking resin is not only expensive, smelly, easy to pollute the environment, but also has safety hazards such as flammability and explosion;
[0006] 3. Synthetic leather products prepared by solvent-based cracking resins have poor comprehensive effects such as visual effects, viscosity, stability, and hand touch.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. The water-based PU cracking resin for synthetic leather is composed of the following raw materials: 100 kg of aliphatic polyurethane emulsion (30% solid content), 40 kg of tap water, 2 kg of water-based polyurethane thickener, and 1 kg of silicone leveling agent.

[0027] 2, the preparation method of synthetic leather water-based PU cracking resin of the present invention is as follows:

[0028] ①According to the above formula, take 100 kg of aliphatic polyurethane emulsion (30% solid content), 40 kg of tap water and 1 kg of silicone leveling agent, stir for 2 hours, fully mix, and set aside;

[0029] 2. get step 1. filter the mixture obtained by reaction;

[0030] 3. Take the mixture obtained by filtering in step 2, add 2 kg of water-based polyurethane thickener according to the above ratio, and stir evenly to obtain the water-based PU cracking resin for synthetic leather.

[0031] 3. Experimentally detect the technical performance indicators of the PU cracked resi...

Embodiment 2

[0035] 1. The water-based PU cracking resin for synthetic leather is composed of the following raw materials: 120 kg of aliphatic polyurethane dispersion (30% solid content), 50 kg of tap water, 8 kg of non-ionic polyurethane polymer thickener, and silicone leveling agent 4 kg.

[0036] 2, the preparation method of synthetic leather water-based PU cracking resin of the present invention is as follows:

[0037] ① According to the above formula, take 120 kg of aliphatic polyurethane dispersion (30% solid content), 50 kg of tap water and 4 kg of silicone leveling agent, stir for 2 hours, mix well, and set aside;

[0038] 2. get step 1. filter the mixture obtained by reaction;

[0039] 3. Get the mixture obtained by step 2. filter, add 8 kilograms of nonionic polyurethane polymer thickeners according to the above ratio, and stir evenly to obtain the water-based PU cracking resin for synthetic leather.

[0040] 3. Experimentally detect the technical performance indicators of the ...

Embodiment 3

[0044] 1. Water-based PU cracking resin for synthetic leather is composed of the following raw materials: aromatic polyurethane dispersion (30% solid content) 150 kg, tap water 70 kg, non-ionic polyurethane polymer thickener 8 kg, silicone leveling agent 4 kg.

[0045] 2, the preparation method of synthetic leather water-based PU cracking resin of the present invention is as follows:

[0046] ① According to the above formula, take 150 kg of aromatic polyurethane dispersion (30% solid content), 70 kg of tap water and 4 kg of silicone leveling agent, stir for 2 hours, mix well, and set aside;

[0047] 2. get step 1. filter the mixture obtained by reaction;

[0048] 3. Get the mixture obtained by step 2. filter, add 8 kilograms of nonionic polyurethane polymer thickeners according to the above ratio, and stir evenly to obtain the water-based PU cracking resin for synthetic leather.

[0049] 3. Experimentally detect the technical performance indicators of the PU cracked resin pr...

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PUM

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Abstract

The invention discloses water PU cracking resin for synthesizing leather, which comprises following materials in percentage by weight: 60-70 percent of water polyurethane resin, 20-35 percent of water, 0.3-2 percent of organic silicon flatting agent and 0.5-4 percent of water polyurethane thickener. The water PU cracking resin for synthesizing leather uses water as solvent to replace dimethyl formamide and butanone and other toxic solvents, thereby achieving the non-inflammable, safe, environmental-protection and cost-saving performance. In addition, the cracking resin has the advantages of good film forming, firm bonding, solvent-resist, cold resist, hydrolysis-resist and heat aging-resist performances, and the like. Finished products made by using the cracking resin have the advantages of excellent cracking effect, better real leather quality, fine and smooth texture, good air permeability, and the like.

Description

technical field [0001] The invention relates to a resin for synthetic leather, in particular to a water-based PU cracking resin applied to the front-stage and post-stage treatment of synthetic leather. Background technique [0002] At present, synthetic leather products have gradually become a popular trend in the future, and synthetic leather has been widely used in the production of luggage, clothing, footwear and other products. The base fabric of PU leather is a canvas PU material with good tensile strength. In addition to being coated on the top of the base fabric, the base fabric can also be included in the middle, so that the existence of the base fabric cannot be seen from the outside. PU leather has physical properties. Good, resistance to twists and turns, good softness, high tensile strength, and breathability, so PU leather is widely used in the fabric of footwear or the weight-bearing parts of bags. [0003] At present, the PU cracking resins for synthetic leat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M13/50C08L75/04D06N3/14
Inventor 时云刚
Owner JIANGSU BAOZE POLYMER MATERIAL
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