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Water-soluble PU nubuck low-temperature foamex for synthetic leather

A foamed resin and synthetic leather technology, applied in fiber processing, textiles and papermaking, etc., can solve the problems of poor viscosity, stability, hand feel and other comprehensive effects, poor hand feel of synthetic leather, easy to pollute the environment, etc. Excellent comprehensive effect, unique effect, good air permeability

Inactive Publication Date: 2010-03-10
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 solvent-type Yangbuck low-temperature foaming 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-type Yangba low-temperature foaming resin not only has high cost, strong smell, 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 Yangbucks low-temperature foaming resin have poor comprehensive 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 Yangbuck low-temperature foaming resin for synthetic leather is composed of the following raw materials: 100 kg of water-based polyurethane (30% solid content), 100 kg of ordinary tap water, 4 kg of low-temperature Yangbuck powder, 8 kg of water-based polyurethane thickener, organic 1 kg of silicon defoamer, 5 kg of silicone leveling agent.

[0028] 2. The preparation method of the water-based PU Yangbuck low-temperature foaming resin for synthetic leather of the present invention is as follows:

[0029] ① Proportionally select 100 kg of water-based polyurethane (30% solid content), 100 kg of ordinary tap water, 4 kg of low-temperature yangbuck powder, 1 kg of silicone defoamer, 5 kg of silicone leveling agent, mix and stir for 2 to 3 hours , fully mixed and set aside;

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

[0031] 3. Take the mixture obtained by filtering in step 2, add 8 kg of water-based polyurethane thicke...

Embodiment 2

[0036] 1. The water-based PU Yangbuck low-temperature foaming resin for synthetic leather is composed of the following raw materials: 80 kg of aliphatic polyurethane emulsion (30% solid content), 100 kg of ordinary tap water, 16 kg of low-temperature Yangbuck powder, and 4 kg of water-based polyurethane thickener , 8 kg of silicone defoamer, 10 kg of silicone leveling agent.

[0037] 2. The preparation method of the water-based PU Yangbuck low-temperature foaming resin for synthetic leather of the present invention is as follows:

[0038] ① Proportionally select 80 kg of aliphatic polyurethane emulsion (30% solid content), 100 kg of ordinary tap water, 16 kg of low-temperature yangbuck powder, 8 kg of silicone defoamer, 10 kg of silicone leveling agent, 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 in step ② and filter, add 4 kg of water-based polyurethane...

Embodiment 3

[0045] 1. The water-based PU Yangbuck low-temperature foaming resin for synthetic leather is composed of the following raw materials: 60 kg of aromatic polyurethane emulsion (30% solid content), 80 kg of ordinary tap water, 4 kg of low-temperature Yangbuck powder, and non-ionic polyurethane polymer 2 kg, 4 kg of silicone defoamer, 4 kg of silicone leveling agent.

[0046] 2. The preparation method of the water-based PU Yangbuck low-temperature foaming resin for synthetic leather of the present invention is as follows:

[0047] ① Proportionally select 60 kg of aromatic polyurethane emulsion (30% solid content), 80 kg of ordinary tap water, 4 kg of low-temperature yangbuck powder, 4 kg of silicone defoamer, 4 kg of silicone leveling agent, 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 in step ② by filtering, add 2 kg of nonionic polyurethane polymer in propo...

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PUM

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Abstract

The invention discloses water-soluble PU nubuck low-temperature foamex for synthetic leather, prepared by the following raw materials in percentage by weight: 30-40 percent of water-soluble polyurethane, 40-50 percent of water, 2-10 percent of low-temperature nubuck foam powder, 2-5 percent of organosilicon levelling agent, 2-5 percent of organosilicon antifoaming agent and 0.5-2 percent of water-soluble polyurethane thickener. The mixture ratio of each component of the water-soluble PU nubuck low-temperature foamex for synthetic leather is scientific and reasonable, and the components mutually coordinate and jointly act. The nubuck low-temperature foamex has the advantages of good film reforming property and firm adhesion, and coating is resistant to solvent, cold, hydrolysis and thermalageing. The original effect of the leather surface of a finished product prepared from the water-soluble PU nubuck low-temperature foamex can not be influenced; after the leather surface is treated bythe foamex, low-temperature foaming is carried out to produce nubuck leather, and therefore, the effect of the leather surface is unique; moreover, the synthetic leather has exquisite texture, good air permeability and excellent resultant effect of hand feeling, water proofing, adhesion and the like.

Description

technical field [0001] The invention relates to a water-based PU yangbuck low-temperature foaming resin for synthetic leather, in particular to a water-based PU yangbuck low-temperature foaming resin for synthetic leather applied to the back-stage 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 t...

Claims

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Application Information

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IPC IPC(8): D06M15/564D06N3/12
Inventor 时云刚
Owner JIANGSU BAOZE POLYMER MATERIAL
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