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Renewable high-strength corrugated medium and its production method

A production method and technology of corrugated base paper, applied in the field of pulp and papermaking, can solve the problems of insufficient utilization of pulp residue, easy pollution of the environment, high raw material prices, etc., and achieve the effects of reducing papermaking costs, being conducive to environmental protection, and good environmental protection

Active Publication Date: 2014-11-12
JIAN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the disadvantages of the prior art that the price of raw materials needed to manufacture high-strength corrugated base paper is high, the cost of papermaking is high, and it is easy to cause pollution to the environment, and the pulp residue produced by the enterprise can only be used as low-grade paper and cannot be fully utilized, the invention provides a recycled High-strength corrugated base paper and its production method

Method used

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  • Renewable high-strength corrugated medium and its production method
  • Renewable high-strength corrugated medium and its production method
  • Renewable high-strength corrugated medium and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Preparation of high-strength corrugated base paper

[0026] Raw materials: 90% of national waste, 10% of pulp residue

[0027] Put the waste paper into the hydraulic pulper to disintegrate. After the disintegration, the slag is removed by the high-concentration desander and then enters the classifying screen. It is classified into two kinds of fibers: long fiber and short fiber. The classification ratio of long fiber and short fiber is 5 :5. The long fibers are processed by four-stage heavy desander, three-stage fine screen, and two-stage light desander. After being concentrated by multiple discs, they are sent to double disc mills for beating to make long fiber slurry with a beating degree of 35°SR; After being treated by three-stage heavy desander and light desander, short fiber slurry is made after multi-disk concentration;

[0028] The tailings of the desander are processed by the first-stage and second-stage low-concentration desanders to remove impuri...

Embodiment 2

[0030] Example 2 Preparation of high-strength corrugated base paper

[0031] Raw materials: 40% of national waste, 60% of pulp residue

[0032] Put the waste paper into the hydraulic pulper to disintegrate. After the disintegration, the slag is removed by the high-concentration desander and then enters the classifying screen. It is classified into two kinds of fibers: long fiber and short fiber. The classification ratio of long fiber and short fiber is 5 :5. The long fiber is processed by four-stage heavy desander, three-stage fine screen, and two-stage light desander. After multi-disk concentration, it is sent to double-disc mill for beating to make long fiber slurry with a beating degree of 32°SR; short fiber After being treated by three-stage heavy desander and light desander, short fiber slurry is made after multi-disk concentration;

[0033] The tailings of the desander are processed by the first-stage and second-stage low-concentration desanders to remove impurities,...

Embodiment 3

[0035] Example 3 Preparation of high-strength corrugated paper

[0036] Raw materials: 90% of national waste, 10% of pulp residue

[0037] Put the waste paper into the hydraulic pulper to disintegrate. After the disintegration, the slag is removed by the high-concentration desander and then enters the classifying screen. It is classified into two kinds of fibers: long fiber and short fiber. The classification ratio of long fiber and short fiber is 5 :5. The long fibers are processed by four-stage heavy desander, three-stage fine screen, and two-stage light desander. After being concentrated by multiple discs, they are sent to double disc mills for beating to make long fiber slurry with a beating degree of 35°SR; After being treated by three-stage heavy desander and light desander, short fiber slurry is made after multi-disk concentration;

[0038] The tailings of the desander are processed by the first-stage and second-stage low-concentration desanders to remove impurities...

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Abstract

The invention relates to a renewable high-strength corrugated medium and its manufacturing method. The raw paper is prepared from 40-90% of old paper stock and 10-60% of dreg paper pulp. The invention also provides a high-strength corrugated paper and its production method. The right side and back side of the corrugated medium are respectively provided with sizing layers. According to the renewable high-strength corrugated medium, waste paper and dregs are used as raw materials. Therefore, the renewable high-strength corrugated medium has good environmental protection property and requires low papermaking cost. According to the renewable high-strength corrugated paper, the raw paper layer is prepared from waste paper and dregs which are used as raw materials. The right side and the back side are both provided with the sizing layers. The production method requires low papermaking cost and is beneficial to environmental protection. Key technical indexes of the production method all reach national standard (GB / T13023-2008) superior product AA grade.

Description

technical field [0001] The invention relates to a recycled high-strength corrugated base paper and a production method thereof, belonging to the technical field of pulping and papermaking. Background technique [0002] The high-strength corrugated base paper currently produced in the market mainly uses waste paper pulp as the main raw material, with a part of wheat straw pulp or cotton straw pulp or chemical mechanical thermal refining (CTMP) as auxiliary raw materials. At the present stage, straw pulp pulping not only causes serious pollution, but also easily pollutes the environment, and the cost of wastewater treatment is high, so its use is limited; cotton straw pulp and chemical mechanical thermal refining, due to their high cost, are generally used to make high-quality pulp. High-strength paper, such as banknote paper, coated paper, etc.; in the actual situation of low domestic forest coverage, wood pulp generally relies on imports. If it is used to make high-strength ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/01D21C5/02D21F11/12
CPCY02W30/64
Inventor 舒君明王宏伟文学芬李聪定赵德源
Owner JIAN GRP
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