Water-based PU matte surface finishing agent for synthetic leather

Abstract

The invention discloses a water-based PU matte surface finishing agent for synthetic leather, which comprises the following materials in parts by weight: 30 to 40 parts of water-based polyurethane resin, 45 to 55 parts of water, 4 to 10 parts of modified organic silicon polymer, 0.5 to 1.5 parts of organic silicon flatting agent, 1 to 2 parts of organic silicon foam killer, 1 to 2 parts of water-based polyurethane thickening agent, and 3 to 5 parts of modified organic silicon matting agent. For the water-based PU matte surface finishing agent, the mixture ratio of the components is scientific and reasonable, and the components are coordinated with each other and act together. The matte surface finishing agent has the advantages of good film reforming property, firm bonding, solvent resistance, hydrolysis resistance and thermosenescence resistance of coating. The finished product made of the synthetic leather, the surface of which is treated by the matte surface finishing agent, has the advantages that the original effect of the leather surface is not affected, particularly the combined application of the modified organic silicon matting agent and the polyurethane resin ensures that the treated leather surface has unique matte surface effect, and the synthetic leather has good comprehensive effects of good air permeability, good hand feel, water resistance, cohesiveness and the like.

Description

technical field [0001] The invention relates to a water-based PU fog surface treatment agent for synthetic leather, in particular to a water-based PU fog surface treatment agent for synthetic leather applied to the synthetic leather post-stage process. 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 ...

AI Technical Summary

Problems solved by technology

[0004] 1. The organic solvent contained in the solvent-based matte treatment agent 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 matte treatment agent 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 matte surface treatment agents have poor comprehensive effects such as viscosity, stability, and hand feel.