Improved production process for producing corrugated core paper by using waste paper

Abstract

The invention discloses an improved production process for producing corrugated core paper by using waste paper. The improved production process comprises the steps of paper cutting, repulping, low-concentration residue removal, low-concentration filter pressing, high-concentration residue removal, high-concentration filter pressing, pulp grinding, screening, blending, paper manufacturing with pulp and formation, drying, squeezing and the like. A traditional production process is improved, an ultrasound pulp grinding process basically does not damage fiber in waste paper in the pulp grinding process, the water quantity for papermaking is decreased while the pulp grinding efficiency is improved and damaged fiber is decreased, the putting and adding amount of chemical materials is decreased,more energy is saved and the environment is protected in the production process, and high-strength corrugated core paper is produced.

Description

Technical field [0001] The invention relates to the technical field of using waste paper to produce corrugated core paper, in particular to an improved production process for using waste paper to produce corrugated core paper. Background technique [0002] The use of waste paper to produce corrugated core paper and the recycling of waste paper are of great significance to reduce the production cost of producing corrugated core paper while protecting the ecological environment. [0003] However, since the recycled waste paper may be waste paper boxes or waste paperboards obtained through secondary papermaking or tertiary papermaking production, the physical properties of the fibers in the waste paper will be greatly reduced, and the process of using waste paper to produce corrugated core paper Especially in the refining process, a larger proportion of water is required, and the water consumption becomes larger. At the same time, most of the fibers will be damaged in the refining pro...

AI Technical Summary

Problems solved by technology

[0003] However, since the recovered waste paper may be waste cartons or waste cardboards produced through secondary papermaking or tertiary papermaking, the physical properties of fibers in waste paper will be greatly reduced. In the process of using waste paper to produce corrugated medium paper Especially in the refining process, a larger proportion of water is required, and the water consumption becomes larger. At the same time, most of the fibers will be damaged in the refining process. Therefore, for the use of waste paper to produce corrugated medium paper, it must be used in the subsequent papermaking Various chemicals are added to the process to improve the physical properties of the corrugated medium produced, so it is necessary to improve

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