A kind of preparation method of waterborne polyurethane wall body leather

Abstract

The invention discloses a method for preparing waterborne polyurethane wall leather. The method comprises the following steps: adding water-based color paste, a water-based thickening agent, a filler, negative oxygen ion generating body powder, a flatting agent, a flame retardant and a mildew preventive into a waterborne polyurethane resin, mixing all the components to prepare a waterborne polyurethane beth sizing agent, directly coating a base fabric subjected to impregnation treatment and ironing with the sizing agent, and drying through a coagulating basin, a rinsing bath and a drying tunnel sequentially, thereby obtaining waterborne polyurethane synthetic leather beth; coating the waterborne polyurethane synthetic leather beth with a waterborne polyurethane surface sizing agent, thereby obtaining waterborne polyurethane beth; and finally, performing surface treatment, printing, embossing, cutting and rolling on the waterborne polyurethane beth leather to obtain the product. The waterborne polyurethane wall leather obtained by the method has the characteristics of being safe and environmentally friendly, having flame retardant, mildew-proof and moistureproof effects, is good in hand feeling, being capable of releasing negative oxygen ions continuously and purifying indoor air, and has a remarkable surface stereoscopic impression effect.

Description

technical field [0001] The invention belongs to a preparation method of synthetic leather, in particular to a preparation method of water-based polyurethane wall leather. Background technique [0002] In addition to wallpaper, the commonly used interior wall decoration materials also include paint, board, etc. In comparison, wallpaper has the characteristics of various colors, rich patterns, luxurious style, convenient construction, and moderate price. It is popular in developed countries such as Europe, America, Southeast Asia, and Japan. According to incomplete statistics, in Britain, France, Italy, the United States and other interior decoration, the penetration rate of wallpaper has reached more than 90%, and in Japan it has reached 100%. As a decorative material that can beautify the environment, wallpaper is suitable for many places and spaces, such as household paper, commercial space, administrative space, entertainment space, etc. Different hobbies, different level...

AI Technical Summary

Problems solved by technology

Chinese patent ZL201010242040.9 proposes a kind of interior wall decorative leather and its preparation method. Water-based polyurethane resin is used to prepare interior wall decorative leather by using all PU pure dry process. Its water resistance, solvent resistance, abrasion resistance and scratch resistance Durability, wrinkle resistance, moisture permeability, air permeability and feel are far superior to traditional wallpapers, and the service life can reach more than ten years, but the foam layer of 0.2-0.3 mm is too thin, the subsequent embossing effect is not obvious, and the three-dimensional effect Not strong, and the surface texture is limited by the texture of the release paper

At present, a negative oxygen ion generator has been developed, which produces a large number of negative oxygen ions in the air and improves indoor air quality. It is inconvenient to change the core