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Alkaline papermaking method in traditional lian-si paper making process

A manufacturing process, a traditional technology, applied in the direction of paper, papermaking, textiles and papermaking, which can solve the problems of paper damage and reduced shelf life

Active Publication Date: 2011-09-07
JIANGXI HANZHU INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional production process of Liansi paper adopts acidic papermaking method in the final papermaking process. Acidity will promote the hydrolysis of cellulose molecules, reduce the degree of polymerization (DP) of cellulose, and destroy the paper, while alkalinity will not The cellulose molecules are hydrolyzed and the degree of polymerization is reduced, so the shelf life of the paper copied from the acid will be greatly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] 1. Add sodium carbonate (amount 1%-3%) to the paper stock to adjust the pH to 8.5-9.5; 2. Add polyacrylamide (amount 0.02%-0.1%) and surfactant twelve to the paper stock Alkyl-benzenesulfonate sodium (amount of 0.1%-0.3%) chemical compounding agent; 3. And add high-efficiency and low-toxic compound type anti-corrosion and anti-mildew fungicide in the paper material, wherein the amount of carbendazim is 1- 3ppm; 4. Alkaline papermaking is carried out after the various agents added above are mixed with the paper material evenly, so that the pH value of the finished paper can reach ≥ 8.5. The storage life of the finished paper strips made in this way will be greatly improved, and it can be anti-corrosion, mildew-proof and insect-proof.

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PUM

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Abstract

The invention discloses an alkaline papermaking method in the traditional lian-si paper making process, relating to a technological method which changes the acidic papermaking method in the traditional lian-shi paper making process into the alkaline papermaking method. The technological method comprises the following steps: adding neutral and alkaline compound agents to paper stock for papermaking to adjust the pH value of the paper pulp to be 8.5-9.5 and then carrying out normal papermaking. By the method, the whole papermaking process is carried out under the condition that the pulp is in the alkaline state, wherein the used agents include polyacrylamide with the dosage of 0.02-0.1%, a surfactant sodium dodecyl benzene monosulfate with the dosage of 0.1-0.3% and an alkaline inorganic chemical product sodium carbonate with the dosage of 1-3% and other alkaline agents.

Description

technical field [0001] The present invention relates to a kind of alkaline papermaking method in the traditional continuous four paper manufacturing process, especially a kind of use polyacrylamide and surfactant sodium dodecyl-benzene sulfonate and sodium carbonate to raise the pH value of the paper stock to 8.5-9.5 alkaline papermaking method. technical background [0002] "Ciyuan" said: "The raw material of Lianshi paper is bamboo, which is white and fine in quality, and its color and quality will not change after a long time. In the old days, it was often used for valuable books, inscriptions, inscriptions, calligraphy and paintings, and fans." Many great works and precious classics in our country also use Qianshanlian four papers, such as "Seventeen Histories" in the Ming Dynasty, "Preliminary Collection of Rare Editions of Siku Quanshu" and so on. Gao Lian of the Ming Dynasty discussed paper products in "Eight Notes of Zunsheng", calling Qianshan Liansi (historical) p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/36D21H17/55D21H17/64
Inventor 鄢中华雷建民甘让生石礼雄
Owner JIANGXI HANZHU INDAL