Preparation process of environmental protection liner paper

Abstract

The invention relates to a preparation process of an environmental protection liner paper, comprising the steps of: a. adding domestic waste paper and European waste paper into a pulper to break them into paper pulp; b. removing impurities from the paper pulp through a scalping screen and a slag separator in sequence; c. inputting the slurry into a grading sieve, separating long fibers and short fibers, and then conveying the long fibers and short fibers respectively to a long fiber slurry pond and a short fiber slurry pond; d. adding adjuvants composed of 10-20kg reinforcing agent per ton of slurry, 10-15kg sizing agent per ton of slurry and 10-18kg pearl alum per ton of slurry into the long fiber slurry pond and the short fiber slurry pond respectively; e. pumping the long fiber slurry into a first bed at a wire section for shaping up and dehydrating to a dryness of 10%-30%, and pumping the short fiber slurry into a second bed for shaping up and dehydrating to a dryness of 10%-30%, then conveying the shaped and dehydrated slurries into a composite roll to compound a piece of paper; f. pressing and dehydrating the paper to a dryness of 35%-50%; g. drying the paper so as to obtain a finished product of liner paper. The preparation process of the invention is characterized by low cost, low power consumption, outstanding energy conservation and better environmental protection.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a preparation process of environment-friendly liner paper. Background technique [0002] Liner paper plays a very important role in modern society, especially in the packaging industry. It is one of the components of many packing boxes and packing boards. In the prior art, the preparation of liner paper needs to go through multiple processes and requires a lot of equipment, so the preparation process is complicated, more equipment is required in the preparation process, and the power consumption is large, resulting in high cost and high energy consumption. Therefore, in view of the deficiencies in the prior art, it is necessary to provide a high-quality, low-cost preparation process for environmentally friendly liner paper to solve the deficiencies in the prior art. Contents of the invention [0003] The object of the present invention is to avoid the disadvantages of the...

AI Technical Summary

Problems solved by technology

In the prior art, the preparation of liner paper needs to go through multiple processes and requires more equipment, so the preparation process is complicated, more equipment is required in the preparation process, and the power consumption is large, resulting in high cost and high energy consumption.

Images