One-step paper deacidification strengthening and enhancing agent and method

A technology of reinforcing agent and paper, applied in the post-processing of waste paper, etc., to achieve the effect of improving bursting resistance, short processing time, and slowing down corrosion

Inactive Publication Date: 2016-01-27
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, SP in borate 2 The electron-deficient structure makes tetraborate have a strong electron-absorbing ability, and it is easy to add to polyols to enhance the ability of intermolecular force; in addition, due to the special electron-deficient structure of borides, its compounds have a variety of Special properties, often used as a modifier in industrial production, but there is no application related to deacidification or strengthening of paper

Method used

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  • One-step paper deacidification strengthening and enhancing agent and method
  • One-step paper deacidification strengthening and enhancing agent and method
  • One-step paper deacidification strengthening and enhancing agent and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Cut about 30g of the 1986 newspaper ("Mei Xing Daily") for later use, weigh 0.3g of cationic etherified starch and mix with 2.1g of sodium tetraborate, add 80mL of deionized water and heat to 90°C, add water to 500mL, and keep at 30°C spare. Pour the deacidification and strengthening agent into the deacidification and strengthening tank, then add the newspapers cut above into the deacidification and strengthening tank, soak for 30 minutes for deacidification. After the paper is dried, let it stand under constant temperature and humidity conditions, and measure the mechanical strength and acidity of the paper after 72 hours.

[0036] The results are shown in the table below:

[0037]

Embodiment 2

[0039] Cut out about 30g of the 1986 newspaper ("Mei Xing Daily") for later use, weigh 0.09g of cationic etherified starch, 3.0g of potassium tetraborate and mix, add a small amount of deionized water and heat to 90°C, add water to 500mL, and keep at 25°C spare. Pour the deacidification and strengthening agent into the deacidification and strengthening tank, then add the newspapers cut above into the deacidification and strengthening tank, soak for 30 minutes for deacidification. After the paper is dried, let it stand under constant temperature and humidity conditions, and measure the mechanical strength and acidity of the paper after 72 hours.

[0040] The results are shown in the table below:

[0041]

Embodiment 3

[0043] Cut out about 30g of the 1986 newspaper ("Mei Xing Daily") for later use, weigh 0.1g of cationic etherified starch and 2.3g of lithium tetraborate and mix, add a small amount of deionized water and heat to 90°C, add water to 500mL, and keep at 60°C spare. Pour the deacidification and strengthening agent into the deacidification and strengthening tank, then add the newspapers cut above into the deacidification and strengthening tank, soak for 30 minutes for deacidification. After the paper is dried, let it stand under constant temperature and humidity conditions, and measure the mechanical strength and acidity of the paper after 72 hours.

[0044] The results are shown in the table below:

[0045]

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PUM

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Abstract

The invention discloses a one-step paper deacidification strengthening and enhancing agent and a method and aims at providing a paper deacidification strengthening and enhancing agent which is high in deacidification strengthening efficiency and short in processing time and a strengthening and enhancing method thereof. The one-step paper deacidification strengthening and enhancing agent is technically characterized by being prepared from cationic etherification starch and tetraborate. The method includes the steps that firstly, the paper deacidification strengthening and enhancing agent with 0.18-1.0g of quaternary ammonium type cationic starch and 4-6 g of tetraborate contained in each liter of reagents is prepared; secondly, paper needing to be processed directly makes contact with the paper deacidification strengthening and enhancing agent prepared in the first step and is processed for 10-120 min at the 25-60 DEG C; thirdly, the processed paper is taken out and stands still for 60-80 h.

Description

technical field [0001] The invention provides a paper processing method, specifically, a one-step paper deacidification strengthening agent and a strengthening method thereof. Background technique [0002] my country is an ancient civilization with a long history and splendid culture. In the long years, a large number of precious historical archives and cultural books have been formed, which record the historical footprints of the Chinese nation and the life course of Chinese sons and daughters who struggled endlessly. These cultural treasures left behind are the spiritual backbone of the Chinese nation standing tall in the world. Today, however, the protection of these precious historical and cultural materials, especially modern literature and books, is facing severe challenges. [0003] According to the survey, more than 60% of modern documents and books in most libraries and archives in our country are seriously acidified. A large number of papers were severely discol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H25/18
Inventor 林茵涛谭伟方岩雄徐兵潘韵婷吴婷
Owner GUANGDONG UNIV OF TECH
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