Production process of decorative base paper

Abstract

The invention relates to a production process of decorative base paper. The process comprises the following steps: carrying out pulping treatment on wood pulp, thus rough pulp is prepared; carrying out pulping treatment on the rough pulp, defibering fiber in paper pulp, cutting off moderately and brooming, thus mechanical pulp after knocking and needle leaf and broad leaf mixed chemical pulp after knocking are prepared; mixing the mechanical pulp and the chemical pulp, and adding starch and auxiliary chemicals in the pulp, thus pulp is prepared; and adding auxiliary chemicals such as glue, filler after dilution, and preparing the high-grade decorative base paper after the treatment of screening, processing of a wet end, processing of a pressing section, press polishing, paper winding and rewinding and packaging. According to the invention, through the improvement of production technology and devices in the production technology, the ratio of expansion and contraction, thickness, bubble points and other using performances are improved.

Description

technical field [0001] The invention relates to a papermaking process, in particular to a production process of decorative base paper. Background technique [0002] At present, there is still a relatively large difference between the research and production of decorative base paper in my country and the advanced level abroad. Internationally, the base paper represented by Finland occupies the main market of high-end decorative paper in the world, and the domestic high-end decorative base paper market mainly relies on imports. The main market of domestic decorative base paper is domestic, occupying mainly the middle and low-end decorative base paper market, and domestic decorative base paper cannot completely replace imported base paper. The main gap between domestic base paper and imported base paper is reflected in several aspects: [0003] 1. There is a certain gap between the domestic decorative base paper and the imported base paper in terms of expansion rate and thickn...

AI Technical Summary

Problems solved by technology

[0003] 1. There is a certain gap between the domestic decorative base paper and the imported base paper in terms of expansion rate and thickness, and the bubble point after PVC coating is not as stable as that of the Finnish imported base paper.

[0004] 2. The coating and printing clarity and grade required by high-grade decorative paper cannot be met, and high-grade decorative paper still needs to use imported base paper

[0005] 3. Domestic base paper loses hair and powder during reprocessing. Compared with imported base paper, the number of machine cleanings during reprocessing increases.

[0006] 4. The applicability of the base paper is relatively poor under different processes such as PVC foaming or not, low foaming or high foaming, etc. in the reprocessing process