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Pretreatment method for producing high-strength corrugated paper

A technology for pretreatment and corrugated paper, used in the field of papermaking

Inactive Publication Date: 2018-01-19
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 pretreatment method for the production of high-strength corrugated paper to solve the method for preparing natural color paste and high-strength corrugated paper disclosed in the patent document "Cotton-stalk-made natural color paste and method for producing high-strength corrugated paper (authorized announcement number: CN103215837B)" On the issue of improving the crude stock yield of natural color pulp, the fracture length of high-strength corrugated paper and the ring pressure index

Method used

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  • Pretreatment method for producing high-strength corrugated paper
  • Pretreatment method for producing high-strength corrugated paper

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preparation example Construction

[0026] In an embodiment, the preparation method of the high-strength corrugated paper includes the following steps:

[0027] 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;

[0028] 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

[0032] A method for preparing high-strength corrugated paper, comprising the following steps:

[0033] 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 1:1.3, 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;

[0034] 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 treatmen...

Embodiment 2

[0038] A method for preparing high-strength corrugated paper, comprising the following steps:

[0039] 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;

[0040] 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 pretreatment method for producing high-strength corrugated paper, and belongs to the technical field of paper making. The pretreatment method comprises the following steps ofS1: crushing bagasse, conveying an obtained crushed substance into primary treating liquid, soaking under ultrasonic power, and next, filtering, so as to obtain a soaked material a, wherein the primary treating liquid is prepared from the following raw materials: polyethylene glycol, fatty alcohol polyoxyethylene ether, ammonium fatty alcohol polyoxyethylene ether sulfate, sodium alkyl sulfosuccinate, cellulase and water; S2, conveying the soaked material a prepared in the step S1 into secondary treating liquid, cooking under heating, and next, filtering, so as to obtain a soaked material b,thereby completing a pretreatment procedure, wherein the secondary treating liquid is prepared from the following raw materials: 1,3-diketone, sodium lauryl sulfate, percarbamide, magnesium oxide, sodium hydrate and water. A coarse-pulp yield, a breaking length and a ring crush index which are obtained by the process of the pretreatment method are all obviously higher than the coarse-pulp yield, the breaking length and the ring crush index obtained in the prior art.

Description

【Technical field】 [0001] The invention belongs to the technical field of papermaking, and in particular relates to a pretreatment method for producing 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,...

Claims

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Application Information

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IPC IPC(8): D21C5/00D21C3/02D21C1/10D21C3/22D21H11/12
Inventor 古金荣古丰铭
Owner 广西金荣纸业有限公司
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