Preparation method of high-strength corrugated board

A corrugated paper, high-strength technology, applied in the field of papermaking, to achieve the effect of increasing the yield of coarse pulp

Inactive Publication Date: 2018-02-16
广西金荣纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method for preparing high-strength corrugated paper to solve the problem of how to prepare natural color pulp and high-strength corrugated paper disclosed in the patent document "Cotton-stalk-made natural color pulp and method for producing high-strength corrugated paper (authorized announcement number: CN103215837B)", Problems of increasing the crude pulp yield of natural color pulp, the fracture length of high-strength corrugated paper and the ring pressure index

Method used

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  • Preparation method of high-strength corrugated board
  • Preparation method of high-strength corrugated board

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preparation example Construction

[0028] In an embodiment, the preparation method of the high-strength corrugated paper includes the following steps:

[0029] S1: Grinding the bagasse, and transporting the resulting crushed product to the primary treatment liquid, the weight ratio of the bagasse crushed product to the primary treatment liquid is 1:1.2-4, and the primary treatment liquid is expressed in parts by weight as a unit, including the following raw materials: polyethylene glycol 3-6 parts, fatty alcohol polyoxyethylene ether 4-8 parts, fatty alcohol polyoxyethylene ether ammonium sulfate 1-2 parts, sodium alkyl succinate sulfonate 2- 4 parts, 0.1-0.2 parts of cellulase, 50-120 parts of water, soaking for 20-30min at an ultrasonic power of 80-120W and a temperature of 40-50°C, and then filtering to obtain the soaking material a;

[0030] S2: Transport the immersion material a prepared in step S1 to the secondary treatment liquid, the weight ratio of the immersion material a to the secondary treatment li...

Embodiment 1

[0034] A method for preparing high-strength corrugated paper, comprising the following steps:

[0035] S1: Grinding the bagasse, and transporting the obtained pulverized product into the primary treatment liquid, the weight ratio of the bagasse pulverized product to the primary treatment liquid is 1:1.3, and the primary treatment liquid is in parts by weight , including the following raw materials: 3 parts of polyethylene glycol, 5 parts of fatty alcohol polyoxyethylene ether, 1 part of fatty alcohol polyoxyethylene ether ammonium sulfate, 2 parts of sodium alkyl succinate sulfonate, 0.1 part of cellulase, 50 parts of water Parts were soaked for 30 minutes at an ultrasonic power of 80W and a temperature of 40°C, and then filtered to obtain the impregnated material a;

[0036]S2: Transport the immersion material a prepared in step S1 to the secondary treatment liquid, the weight ratio of the immersion material a to the secondary treatment liquid is 1:4.5, and the secondary trea...

Embodiment 2

[0040] A method for preparing high-strength corrugated paper, comprising the following steps:

[0041] S1: Grinding the bagasse, and transporting the obtained pulverized product to the primary treatment liquid, the weight ratio of the bagasse pulverized product to the primary treatment liquid is 1:4, and the primary treatment liquid is in parts by weight , including the following raw materials: 6 parts of polyethylene glycol, 8 parts of fatty alcohol polyoxyethylene ether, 2 parts of fatty alcohol polyoxyethylene ether ammonium sulfate, 4 parts of sodium alkyl succinate sulfonate, 0.2 part of cellulase, 120 parts of water Parts were soaked for 20 minutes at an ultrasonic power of 120W and a temperature of 50°C, and then filtered to obtain the impregnated material a;

[0042] S2: Transport the immersion material a prepared in step S1 to the secondary treatment liquid, the weight ratio of the immersion material a to the secondary treatment liquid is 1:12.6, and the secondary tre...

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Abstract

The invention discloses a preparation method of a high-strength corrugated board and belongs to the technical field of papermaking; the high-strength corrugated board is made via the steps of secondary pretreating, grinding, beating, forming and the like. The yield, breaking length and ring crush index of crude pulp made by using the preparation method of crude pulp and high-strength corrugated boards are all significantly higher than those of the pulp made by using the prior art; the preparation method meets the national industrial policies of resource conservation, environmental friendliness, circular economy, and energy conservation and emission reduction, the redundant abandoned resources such as bagasse are developed and utilized, contamination can be decreased, and economic benefit can be increased.

Description

【Technical field】 [0001] The invention belongs to the technical field of papermaking, and in particular relates to a preparation method of high-strength corrugated paper. 【Background technique】 [0002] The current pulp production methods mainly include chemical, semi-chemical, mechanical and chemical-mechanical processes. Among them, chemical pulping occupies a dominant position among many pulping methods at present. The pulp prepared by chemical cooking is called natural pulp. The low brightness of natural pulp limits its application. Generally, natural pulp can only be produced after bleaching to produce higher-grade paper. If the whiteness of the natural pulp can be improved during the pulping process, the trouble of subsequent bleaching can be saved, the production process can be simplified, the production cost can be reduced, and the use value of the natural pulp can be increased. [0003] In the production process of natural pulp, for wood raw materials, the kraft m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/12D21C5/00D21C3/20D21C3/02D21B1/16D21B1/30D21C3/22
CPCD21H11/12D21B1/16D21B1/303D21C3/02D21C3/20D21C3/226D21C5/005
Inventor 古金荣古丰铭
Owner 广西金荣纸业有限公司
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