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Water-based PU high solid resin combination for synthetic leather

A technology of resin composition and synthetic leather, applied in fiber processing, textiles and papermaking, etc., can solve the problems of poor viscosity, stability, comprehensive effect of hand touch, bad hand feeling of synthetic leather, dissolution of the bottom layer of synthetic leather, etc. Excellent comprehensive effect, fine texture, firm bonding effect

Inactive Publication Date: 2010-05-12
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 high-solid resin composition 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 high-solid resin composition is not only expensive, smelly, and easy to pollute the environment, but also has safety hazards such as flammability and explosion;
[0006] 3. Synthetic leather products prepared from solvent-based high-solid resin compositions have poor overall effects such as viscosity, stability, and hand feel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. The water-based PU high-solid resin composition for synthetic leather consists of the following raw materials: 100 kg of water-based polyurethane resin (100% solid content), 150 kg of tap water, 50 kg of modified silicone polymer, and 7.5 kg of water-based polyurethane thickener , 5 kg of silicone defoamer, 2.5 kg of silicone leveling agent.

[0028] 2. The preparation method of the water-based PU high-solid resin composition for synthetic leather of the present invention is as follows:

[0029] ① Proportionally select 100 kg of water-based polyurethane resin (100% solid content), 50 kg of modified silicone polymer, 5 kg of silicone defoamer, 2.5 kg of silicone leveling agent, 150 kg of tap water, mix and stir for 2 to 3 hours, fully mixed, set aside;

[0030] ② Grinding and filtering the reaction mixture obtained in step ①;

[0031] 3. Take the mixture obtained by step 2. filter, add 7.5 kg of water-based polyurethane thickener in proportion, and stir evenly to ob...

Embodiment 2

[0036] 1. The water-based PU high-solid resin composition for synthetic leather is composed of the following raw materials: 80 kg of water-based polyurethane resin (100% solid content), 130 kg of tap water, 42 kg of modified silicone polymer, and 7 kg of water-based polyurethane thickener , 5 kg of silicone defoamer, 2 kg of silicone leveling agent.

[0037] 2. The preparation method of the water-based PU high-solid resin composition for synthetic leather of the present invention is as follows:

[0038] ① Proportionally select 80 kg of water-based polyurethane resin (100% solid content), 42 kg of modified silicone polymer, 5 kg of silicone defoamer, 2 kg of silicone leveling agent, 130 kg of tap water, mix and stir for 2 to 3 hours, fully mixed, set aside;

[0039] ② Grinding and filtering the reaction mixture obtained in step ①;

[0040] 3. Take the mixture obtained by step 2. filter, add 7 kg of water-based polyurethane thickener in proportion, and stir evenly to obtain th...

Embodiment 3

[0045] 1. The water-based PU high-solid resin composition for synthetic leather consists of the following raw materials: 70 kg of water-based polyurethane resin (100% solid content), 100 kg of tap water, 35 kg of modified silicone polymer, and 7 kg of water-based polyurethane thickener , 4 kg of silicone defoamer, 1.5 kg of silicone leveling agent.

[0046] 2. The preparation method of the water-based PU high-solid resin composition for synthetic leather of the present invention is as follows:

[0047] ① Proportionally select 60 kg of water-based polyurethane resin (100% solid content), 42 kg of modified silicone polymer, 4 kg of silicone defoamer, 1.5 kg of silicone leveling agent, 120 kg of tap water, mix and stir for 2 to 3 hours, fully mixed, set aside;

[0048] ② Grinding and filtering the reaction mixture obtained in step ①;

[0049] 3. Take the mixture obtained by step 2. filter, add 7 kg of water-based polyurethane thickener in proportion, and stir evenly to obtain t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a water-based PU high solid resin combination for synthetic leather, which comprises the following materials by weight percent: 25 to 35 percent of water-based polyurethane resin, 45 to 55 percent of water, 10 to 20 percent of modified organic silicon polymer, 0.5 to 1.5 percent of organic silicon flatting agent, 1 to 3 percent of organic silicon foam killer and 1.5 to 4.5 percent of water-based polyurethane thickening agent. The water-based PU ironing finishing agent has the advantages that the mixture ratio of the component is scientific and reasonable, and the components are coordinated with each other and act together; the high solid resin combination has the advantages of good film reforming property, firm bonding, solvent resistance, cold resistance, hydrolysis resistance and thermosenescence resistance of coating; the finished product made of the synthetic leather, the surface of which is treated by the high solid resin combination, has the advantages that the original effect of the leather surface is not affected, raised patterns on the leather surface are sufficient in contrast to the leather sole after the leather surface is treated and modified, and the leather surface has unique high solid effect.

Description

technical field [0001] The invention relates to a high-solid resin composition for synthetic leather, in particular to a water-based PU high-solid resin composition for synthetic leather used in the back-end process of synthetic leather. Background technique [0002] With the improvement of people's living standards, people are gradually pursuing high-quality daily products, and the demand for leather products is increasing. With the enhancement of animal protection awareness, animal leather can no longer meet people's needs. At present, synthetic leather products have gradually become a popular trend in the future. Synthetic leather has been widely used in the production of luggage, clothing, footwear and other products. The base fabric of PU leather is canvas PU material with good tensile strength. In addition to being coated on the base fabric In addition to the upper surface, the base fabric can also be included in the middle, so that the existence of the base fabric can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M15/643D06M13/50C08L75/04D06N3/14
Inventor 时云刚
Owner JIANGSU BAOZE POLYMER MATERIAL
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