Hydraulic PU pressing color-changing resin for synthetic leather

A technology of synthetic leather and resin, which is applied in fiber treatment, textiles and papermaking, etc., and 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 plump hand feeling, solvent resistance of the coating, and unique pressure change effect

Inactive Publication Date: 2009-12-16
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 PU pressure-change 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 solvent-based PU pressure-changeable resin not only has high cost, strong odor, and is easy to pollute the environment, but also has safety hazards such as flammability and explosion;
[0006] 3. Synthetic leather products prepared by solvent-based PU pressure-change 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 pressure change resin for synthetic leather is composed of the following raw materials: 40 kg of aliphatic polyurethane emulsion (30% solid content), 40 kg of tap water, 9 kg of silicon dioxide discoloration powder, 6 kg of matting powder, and silicone leveling agent 1 kg, 2 kg of silicone defoamer, 2 kg of water-based polyurethane thickener.

[0027] 2. The preparation method of the water-based PU pressure-set resin for synthetic leather of the present invention is as follows:

[0028] ① Select 40 kg of aliphatic polyurethane emulsion (30% solid content) according to the above proportions, 40 kg of tap water, 9 kg of silica discoloration powder, 6 kg of matting powder, 1 kg of silicone leveling agent, and 2 kg of silicone defoamer , stirred for 2 hours, fully mixed, and set aside;

[0029] ② Grinding and filtering the reaction mixture obtained in step ①;

[0030] ③ Take the mixture obtained by filtering in step ②, add 2 kg of water-based polyure...

Embodiment 2

[0035] 1. The water-based PU pressure change resin for synthetic leather is composed of the following raw materials: 90 kg of aromatic polyurethane emulsion (30% solid content), 70 kg of tap water, 20 kg of silicon dioxide discoloration powder, 15 kg of matting powder, and silicone leveling agent 2 kg, 5 kg of silicone defoamer, 3 kg of non-ionic polyurethane polymer thickener.

[0036] 2. The preparation method of the water-based PU pressure-set resin for synthetic leather of the present invention is as follows:

[0037] ① Select 90 kg of aromatic polyurethane emulsion (30% solid content) according to the above proportions, 70 kg of tap water, 20 kg of silica discoloration powder, 15 kg of matting powder, 2 kg of silicone leveling agent, and 5 kg of silicone defoamer , stirred for 2 hours, fully mixed, and set aside;

[0038] ② Grinding and filtering the reaction mixture obtained in step ①;

[0039] 3. Take the mixture obtained by step 2. filter, add 3 kilograms of non-ioni...

Embodiment 3

[0044] 1. The water-based PU pressure-changing resin for synthetic leather is composed of the following raw materials: 70 kg of aromatic polyurethane dispersion (30% solid content), 50 kg of tap water, 10 kg of silica color changing powder, 10 kg of matting powder, and silicone leveling 0.6 kg of agent, 2 kg of silicone defoamer, and 1 kg of non-ionic polyurethane polymer thickener.

[0045] 2. The preparation method of the water-based PU pressure-set resin for synthetic leather of the present invention is as follows:

[0046] ① Select 70 kg of aromatic polyurethane dispersion (30% solid content) according to the above ratio, 50 kg of tap water, 10 kg of silica discoloration powder, 10 kg of matting powder, 0.6 kg of silicone leveling agent, and 2 kg of silicone defoamer kg, stirred for 3 hours, fully mixed, and set aside;

[0047] ② Grinding and filtering the reaction mixture obtained in step ①;

[0048] ③ Take the mixture obtained by filtering in step ②, add 1 kg of nonion...

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PUM

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Abstract

The invention discloses a hydraulic PU pressing color-changing resin for synthetic leather; the hydraulic PU pressing color-changing resin is constituted by the following raw materials by weight percentage: 35-45 percent of waterborne polyurethane, 25-35 percent of water, 5-15 percent of silicon dioxide color changing powder, 5-10 percent of extinction powder, 0.3-1 percent of organic silicon flatting agents, 1-3 percent of silicone defoaming agents, and 0.5-2 percent of waterborne polyurethane thickeners. The hydraulic PU pressing color-changing resin for synthetic leather takes water as solvent, toxic solvents such as dimethyl fomamide and butanone are replaced, therefore, the hydraulic PU pressing color-changing resin has non-inflammable, safe, environmental-protection, cost-saving performances, and the pressing color-changingresin has the advantages of good film forming property, firm adhesion, solvent-proof, cold-resistance, hydrolyzation-resistance and heat-proof ageing coating. The finished products manufactured by the pressing color-changing resin has the advantages of full handle, good pressing double-color effect, 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 pressure-change resin for synthetic leather applied to the front-stage dry process 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. Synthetic leather is usually a sheet-like product made of a polyurethane resin composition laminated on a substrate such as non-woven fabric, woven fabric or woven fabric. Its structure includes a base fabric and a polyurethane resin layer attached to the base fabric. Polyurethane The resin surface layer mainly plays the role of decoration and imitation leather visual effect. [0003] At present, the water-based PU pressure-settable resins for synthetic leather sold in the market are usually solvent-based pressure-settable resins,...

Claims

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Application Information

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IPC IPC(8): D06M15/564D06M11/79D06M13/50C08L75/04D06N3/14
Inventor 时云刚
Owner JIANGSU BAOZE POLYMER MATERIAL
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