One-step forming process for special veneer glass fiber felt replacing plasterboard surface paper

Abstract

The invention discloses a one-step forming process for special veneer glass fiber thin felt replacing plasterboard surface paper. The forming process comprises the following specific steps: preparation of white water, preparation of slurry, forming of a wet felt blank, soaking in an adhesive solution, recovery of the adhesive solution, drying and curing, and winding to obtain a finished product. Existing equipment is fully utilized, production and 'coating' of the glass fiber felt can be completed through one step on a glass fiber wet felt line by adjusting the production process, and equipment investment is reduced, energy is saved and production efficiency is improved under the condition of meeting use requirements of customers.

Description

technical field [0001] The invention relates to a one-time molding process of a special veneer glass fiber thin felt replacing the face-protecting paper of a gypsum board, which belongs to the molding processing technology. Background technique [0002] At present, the gypsum board veneer is made of paper material, which has the following defects. First, the production process of face protection paper will generate a large amount of waste water, which has a significant impact on the environment; The cost of gypsum board production is increasing day by day; the third is that the air permeability of the protective paper itself is poor, and it takes a long time in the drying stage of the gypsum board production process, which affects its production efficiency; the fourth is that although the protective paper can now be made into It has the characteristics of flame retardancy, but after use, it will be damp and mildewed and its strength will be reduced, and its fire resistance i...

AI Technical Summary

Problems solved by technology

Including the production of glass fiber felt and the surface coating of glass fiber felt, the glass fiber wet-laid thin felt for gypsum veneer manufactured by this method has low efficiency, high energy consumption, and difficult quality assurance

First of all, this method must first produce qualified glass fiber wet-laid felt, and then put it on the coating and scraping line for secondary processing. The production speed of wet-laid felt can generally reach 80-90m / min, while the production of coating and scraping line The speed can only reach about 20 m / min, so a wet felting line needs 4-5 coating and scraping lines to match, which will greatly increase the cost and energy consumption, and reduce the production efficiency a lot

In addition, the glass fiber wet-laid thin felt for gypsum veneer produced by this process is double-coated and scraped, which increases the thickness of the product and deteriorates the flexibility of the product. It will break when the gypsum board veneer is processed, affecting the entire product

Images