A kind of preparation method of chemical residue-free wallpaper base paper

Abstract

The invention relates to the technical field of wallpaper preparation, and provides a method for preparing wallpaper base paper without chemical residues by applying modified chitin to the wallpaper field. The wallpaper prepared by the method has no chemical residues, is environmentally friendly and non-toxic, and It has antibacterial function, including the following preparation steps: (1) preparation of modified chitin slurry; (2) adding the modified chitin slurry in step (1) to the mixing tank, the amount of modified chitin slurry 20-30% of the pulp weight; (3) surfing, pressing, and drying; (4) adding paper stiffness improver; (5) drying: the drying temperature is controlled at 110-120 ° C, and the gradient temperature is used to dry slowly , The heating rate is 5-10°C / min.

Description

technical field [0001] The invention relates to the technical field of wallpaper preparation, in particular to a method for preparing wallpaper base paper without chemical residues. Background technique [0002] Wallpaper, also known as wallpaper, is a specially processed paper used to decorate walls. The birthplace of wallpaper is in Europe, and now it is the most popular in developed countries in Northern Europe, with the best environmental protection and quality, followed by Southeast Asian countries, and the penetration rate of wallpaper in Japan and South Korea is as high as nearly 90%. No matter in terms of production technology, process, or use, compared with other building materials, it can be said that wallpaper is the least toxic. The main raw materials of modern new wallpaper are made of bark and chemically synthesized pulp, which is very natural. When it is used, it will not emit harmful ingredients to human health, but its function is relatively single. In the...

AI Technical Summary

Problems solved by technology

Chitin has excellent spinnability. The chitin fiber prepared by wet spinning process not only has long-lasting, broad-spectrum antibacterial properties, is non-toxic, non-irritating to the human body, and can be biodegraded. It also has excellent synthetic properties. Silk, moderate fineness, good alkali resistance, easy dyeing, good moisture absorption and moisture conductivity, good air permeability, etc., are currently widely used in textiles, medicine and other fields to make various antibacterial and deodorant textiles, chitin sutures and artificial skin, but less in the paper industry

[0004] Chinese patent application number 201310307451.5 discloses the preparation of a new type of green environmental protection wallpaper, the following formula is disclosed: pulp 50-60%; coconut shell activated carbon 0-10%; negative ion additive: 0.5-20%; water 1.0-40% ;Adjuvant 0.1-20%, wherein the pulp contains chitin natural polymer material, which can play a certain antibacterial effect, but the chitin natural polymer material in the pulp has poor water solubility and cannot meet the requirements of sizing