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Production technology of pulp board

A production process and pulp board technology, applied in chemical/chemical mechanical pulp, textiles, papermaking, papermaking machines, etc., can solve the problems of high manufacturing cost, poor air permeability, dull color, etc., and achieve low manufacturing cost, moderate water absorption, colorful effect

Inactive Publication Date: 2015-05-06
周锦和
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional pulp board production process is to use elemental chlorine or hypochlorite to bleach the reed pulp. The bleaching wastewater is difficult to recycle, and the bleaching wastewater pollutes the environment. The pulp whiteness and pulp bulk thickness are low, the strength of the produced pulp board is poor, the water absorption is unreasonable, the air permeability is poor, the pulp board is uneven, and the color is dull
In addition, the traditional pulp board production process is complicated and the manufacturing cost is high

Method used

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  • Production technology of pulp board

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Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0017] refer to figure 1 , providing a pulp board production process, comprising the following steps:

[0018] Continuous kraft cooking, oxygen delignification and chlorine dioxide bleaching are used in turn to make reed pulp. First, the reeds are washed, cut and prepared, and then kraft continuous cooking is used. After washing and screening, oxygen is used to remove lignin. Then bleach with chlorine dioxide;

...

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Abstract

The invention discloses a production technology of a pulp board. The production technology of the pulp board comprises the following steps: sequentially and continuously cooking by virtue of a sulphate process, carrying out oxygen delignification treatment, and carrying out chlorine dioxide bleaching to obtain reed pulp; carrying out a production technology combining alkaline hydrogen peroxide pretreatment with defibrination chemical treatment to obtain poplar chemi-mechanical pulp; blending 15-30wt% of the obtained reed pulp with 70-85% of the obtained poplar chemi-mechanical pulp to obtain slurry without adding auxiliary materials, colour mixing or gluing; and carrying out wire section moulding on the obtained slurry according to a jet-wire speed ratio of 1.0+ / -0.01 and wire loading concentration of 0.9-1.5%, so that the pulp board is obtained. The production technology of the pulp board is simple and low in manufacturing cost and has the environment-friendly advantage, and the pulp board produced by adopting the production technology is good in strength, moderate in water absorption property, strong in air permeability, flat and rough and bright in colour.

Description

technical field [0001] The invention relates to the technical field of pulp board production, more specifically, relates to a pulp board production process. Background technique [0002] The traditional pulp board production process is to use elemental chlorine or hypochlorite to bleach the reed pulp. The bleaching wastewater is difficult to recycle, and the bleaching wastewater pollutes the environment. The pulp whiteness and pulp bulk thickness are low, the produced pulp board has poor strength, unreasonable water absorption, poor air permeability, uneven pulp board and dull color. In addition, the traditional pulp board production process is complicated and the manufacturing cost is high. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a pulp board production process with simple process, low manufacturing cost and environmental protection advantages. The pulp board produced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/02D21F11/00
Inventor 周锦和
Owner 周锦和
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