Water-borne coating sofa leather and preparation method thereof

Abstract

The invention relates to water-borne coating sofa leather and a preparation method thereof. The water-borne coating sofa leather comprises a coating layer and a glue layer, wherein the coating layer is prepared from the following raw materials in parts by mass: 100 parts of waterborne polyurethane, 0.5 to 2 parts of flatting agents, 1 to 3 parts of wetting agents, 1 to 2 parts of thickening agents, 0.2 to 1 part of anti-foaming agents, 0.5 to 2 parts of hand feeling agents and 0 to 8 parts of silicon dioxide; the glue layer comprises a foaming layer and a non-foaming layer; the foaming layer is prepared from 100 parts of PVC resin SG-5, 60 to 90 parts of DOP, 2 to 5 parts of stabilizing agents, 3 to 8 parts of AC foaming agents, 0.5 to 2 parts of foam sorting agents, 60 to 100 parts of calcium carbonate, 0 to 2 parts of ACR and 0.2 to 0.5 part of stearic acid; the non-foaming layer is prepared from 100 parts of PVC resin SG-3, 60 to 90 parts of DOP, 1 to 3 parts of ESPO, 2 to 4 parts of stabilizing agents, 0 to 30 parts of calcium carbonate, 0 to 2 parts of ACR and 0.2 to 1 part of stearic acid. The VOC discharge is reduced; the product has better surface color firmness and low VOCresidue.

Description

technical field [0001] The invention relates to sofa leather, in particular to a water-based coated sofa leather and a preparation method thereof. Background technique [0002] In ancient times, there was a saying that "stand like a pine, sit like a bell, walk like the wind, and lie down like a bow." It can be seen that people in ancient times had very high requirements for standing and sitting posture. In modern life, When people come home after a busy day, the most pleasant thing is to sit on the spacious and comfortable leather sofa after dinner and enjoy a happy and beautiful life. Leather sofas allow our bodies to fully relax. Due to the comfort and softness of leather sofas, it is very popular. Nowadays, leather sofas have gradually become the most important sitting and sleeping utensils for everyone's entertainment and leisure. The exterior of the leather sofa is mainly sofa leather, and the sofa leather can be made of artificial leather. [0003] Artificial leather...

AI Technical Summary

Problems solved by technology

[0003] Artificial leather, it is made of various PVC and PU foaming or film-coating on woven or non-woven fabrics, and can be processed according to different strengths, colors, luster, patterns, etc. , has the characteristics of a wide variety of designs and colors, good waterproof performance, neat edges, high utilization rate and relatively cheap price compared with genuine leather. However, after long-term use, most artificial leather is easy to fade, aging, and has a short service life. For the adhesion of different types of leather, a large amount of adhesives will be used, and for the use of adhesives, most of them are composed of a variety of chemically corrosive substances, which will emit more toxic chemicals

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