Preparation process of bleaching pulp for production of high-strength corrugated paper

A preparation process and technology for corrugated paper, applied in pulp beating/refining method, non-woody plant/crop pulp, paper, etc., can solve the problems of long fracture and low ring pressure index of high-strength corrugated paper, reduce pollution and improve economy effect of benefit

Inactive Publication Date: 2018-02-09
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

Compared with the traditional chemical pulping method, the water consumption per ton of paper is greatly reduced, but there are problems such as the yield of natural color pulp, the fracture length of high-strength corrugated paper and the low ring pressure index

Method used

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  • Preparation process of bleaching pulp for production of high-strength corrugated paper
  • Preparation process of bleaching pulp for production of high-strength corrugated paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing high-strength corrugated paper produced by a bleaching process, comprising the following steps:

[0034] 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: 8 parts of stearamide, 5 parts of fatty alcohol polyoxyethylene ether, 1.5 parts of sodium dodecylbenzenesulfonate, 2.4 parts of sodium alkyl succinate sulfonate, 0.1 part of cellulase, 70 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;

[0035] 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 seconda...

Embodiment 2

[0039] A method for preparing high-strength corrugated paper produced by a bleaching process, comprising the following steps:

[0040] 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: 12 parts of stearamide, 9 parts of fatty alcohol polyoxyethylene ether, 2.5 parts of sodium dodecylbenzenesulfonate, 4.5 parts of sodium alkyl succinate sulfonate, 0.2 part of cellulase, 160 parts of water , soaking for 20 minutes at an ultrasonic power of 120W and a temperature of 50°C, and then filtering to obtain the impregnated material a;

[0041] 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 trea...

Embodiment 3

[0045] A method for preparing high-strength corrugated paper produced by a bleaching process, comprising the following steps:

[0046] S1: Grinding the bagasse, and conveying the obtained pulverized product to the primary treatment liquid, the weight ratio of the bagasse pulverized product to the primary treatment liquid is 1:3, and the primary treatment liquid is in parts by weight , including the following raw materials: 10 parts of stearamide, 8 parts of fatty alcohol polyoxyethylene ether, 2 parts of sodium dodecylbenzenesulfonate, 3.5 parts of sodium alkyl succinate sulfonate, 0.1 part of cellulase, 120 parts of water , soaking for 25 minutes at an ultrasonic power of 100W and a temperature of 45°C, and then filtering to obtain the impregnated material a;

[0047] 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 1:8, and the secondary treatment li...

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Abstract

The invention discloses a preparation process of bleaching pulp for production of high-strength corrugated paper, and belongs to the technical field of papermaking. The bleaching pulp is prepared by the steps of performing pretreatment for twice, washing, performing defibrination, bleaching, performing filter pressing and the like. The yield of crude pulp of the prepared sugarcane bleaching pulp is obviously higher than the yield of the crude pulp prepared according to the prior art; according to the process, rich and abandoned material resources such as bagasse are utilized, so pollution canbe reduced and the economic benefit can be improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of papermaking, and in particular relates to a process for preparing bleached pulp for high-strength corrugated paper production. 【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 bleached sugarcane pulp. The low brightness of bleached sugarcane pulp limits its application. Bleached sugarcane pulp generally needs to be bleached to produce higher-grade paper. [0003] With the continuous expansion of the paper industry and the continuous expansion of the application of pulp, the supply of wood, which was originally the main raw material for papermaking, is gradually in short supply, resulting in excessive deforestation and affecting the ecological environment. T...

Claims

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Application Information

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IPC IPC(8): D21H11/12D21H17/33D21H17/36D21H21/14D21D1/20D21C5/00
CPCD21H11/12D21C5/00D21D1/20D21H17/33D21H17/36D21H21/14
Inventor 古金荣古丰铭
Owner 广西金荣纸业有限公司
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