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Production process of high-strength corrugated base paper

A production process and technology of corrugated base paper, applied in the field of papermaking, can solve the problems of low pulp yield, low product grade, no glue boiling process and sizing process, etc., and achieve the effect of saving water resources and reducing environmental pollution

Inactive Publication Date: 2012-04-04
HUIXIN BIOLOGICAL PULP PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The new papermaking process provided by this patent application has achieved positive results in the utilization of black liquor, saving water resources, and increasing the winning rate. process, the corrugated base paper produced can only meet the B-level standard products, and cannot solve the problem of low-grade products
And there are problems such as difficulty in black liquor treatment, environmental pollution, waste of water resources, high production cost, and low slurry yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Taking the production of excellent A-grade high-strength corrugated base paper from cotton stalks as an example, the specific implementation procedures of this process are as follows:

[0013] 1. Slurry preparation process: steaming the raw material of cotton stalks to obtain coarse cotton stalk pulp with a yield of about 75%.

[0014] 2. Slurry rubbing process: the cooked coarse pulp is sent to the pulp well by the screw conveyor for dilution and stirring, so as to completely separate the heavy impurities in the pulp from the pulp, so as to ensure the normal use of the pulp grinder. The slurry is then concentrated by a solid-liquid separator to reach the concentration of the pulping machine, and the concentrated water is pumped into the slurry well for recycling. After the slurry is concentrated by the solid-liquid separator, it is sent to the twin-screw squeezer by the screw conveyor for black liquor extraction. The black liquor is pumped into the biological bacteria ...

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PUM

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Abstract

The invention relates to a production process of high-strength corrugated base paper, belonging to the technical field of papermaking. The production process comprises the following procedures of: (1) a pulp preparation procedure, (2) a pulp kneading procedure, (3) a pulping and papermaking procedure, (4) a glue boiling procedure and (5) a double-face gluing procedure, so that a high-strength corrugated paper product is obtained, wherein in the pulp kneading process, the concentration of pulp entering a pulp kneading machine is ensured to be not less than 30%, the current of a motor of the pulp kneading machine is controlled to be 18A-22A, the beating degree of the pulp discharged out of the pulp kneading machine is not less than 18 degrees SR, and then the devillicate and the brooming of the pulp are realized. The invention realizes the cyclic utilization of black liquor, solves the problem that superior A-grade high-strength corrugated base paper can not be produced by utilizing various raw materials including wheat straw hood, cotton stalks, straws and the like, saves water resources, reduces environmental pollution, and provides successful experience for non-wood fiber papermaking.

Description

technical field [0001] The invention belongs to the technical field of papermaking. Background technique [0002] At present, due to the difficulties in pollution control and the optimization and adjustment of the national paper industry policy, many straw pulp papermaking enterprises in the paper industry are in a dilemma. The use of bio-pulping technology to solve pollution problems has become the development direction of many companies. Bio-pulping and papermaking technology can realize the recycling of black liquor and produce corrugated base paper with a quality that meets the national B-level standard. The national standard GB / T13023-2008 Excellent Class A standard is very difficult. [0003] The prior art close to the present invention is the invention patent application (Application No.: 200510044222.4) declared by the inventor on August 5, 2005 entitled "New Process for Papermaking with High Pulp Yield". The new papermaking process provided by this patent applicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/12D21D1/20
CPCD21H21/16
Inventor 李敬民
Owner HUIXIN BIOLOGICAL PULP PAPER