Depickling technology for paper relics

A technology for deacidification of paper cultural relics, applied in the field of preparation of deacidification materials for paper cultural relics, can solve the problems of potential safety hazards, flammability and explosion, etc., and achieve simple and convenient deacidification operation, simple preparation, and low processing cost Effect

Inactive Publication Date: 2018-10-23
TIANSHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the deacidification agent diethyl zinc is flammable and explosive, and the deacidification process needs to strictly control parameters such as temperature, which has potential safety hazards [H.Cheradame, S.Ipert, E.Rousset, Mass deacidification of paper and books I-Study limitations gasphase process, Restaurant, 2003, 24(4): 227-229.]

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Dissolve sodium polyacrylate and sodium hydroxide in deionized water at a mass ratio of 1:8 to make a 7% clear solution; then immerse the medium-speed qualitative filter paper in the above-mentioned deacidification agent solution for 15 minutes, then take it out and dry it. Deacidification material. The deacidified material is sandwiched into an acidified book with a pH of 4.5, and placed in a temperature of 15° C. and a relative humidity of 55%-environmental conditions for deacidification for 5 days to increase its pH to above 7.0.

Embodiment 2

[0013] Dissolve sodium carboxymethylcellulose and potassium hydroxide in deionized water at a mass ratio of 1:6 to make a 5% clear solution; then soak the cotton cloth in the above deacidification agent solution for 20 minutes and take it out to dry. Deacidification material. The deacidified material is sandwiched into an acidified book with a pH of 5.0, and placed in a temperature of 20° C. and a relative humidity of 60%—environmental conditions for deacidification for 4 days to increase its pH to above 7.4.

Embodiment 3

[0014] Embodiment 3. Sodium alginate and sodium carbonate are dissolved in deionized water according to the mass ratio of 1: 3 to make a 3% clarification solution; then soak the cotton cloth in the above-mentioned deacidification agent solution for 30 minutes and then take it out and dry it. Deacidification material. The deacidified material is sandwiched into acidified books with a pH of 5.5, and placed in a temperature of 20° C. and a relative humidity of 65%—environmental conditions for deacidification for 3 days to increase its pH to above 7.6.

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PUM

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Abstract

The invention discloses a preparation of a depickling material of a paper relics and an application technology thereof. The preparation method comprises the following steps: a depickling agent is dissolved in deionized water to prepare a clarification solution having a certain concentration; and a water-absorption material is immersed in the above depickling agent solution for certain time, and then the material is taken out and dried in air. The application of the depickling material is characterized in that a to-be-depickled paper relic is coated or clamped by the depickling material, and the depickling effect can be achieved after standing for the certain time.

Description

technical field [0001] The invention belongs to the field of cultural relic protection, and relates to the preparation and application technology of a paper-based cultural relic deacidification material. Background technique [0002] Acidification is a common and serious deterioration phenomenon of paper cultural relics. It will cause the hydrolysis and oxidation of paper cellulose, resulting in accelerated damage to paper cultural relics. It is generally believed that when the pH value of paper is lower than 5.6, deacidification measures should be taken for paper cultural relics. At present, the deacidification methods of paper cultural relics include aqueous solution [Zhang Jinping, Zheng Dongqing, Lu Gang, etc., a multifunctional nano-composite treatment solution for the protection of paper cultural relics and its preparation method, zl201310208232.1, 2014], organic Solvent method [Y.Wang, Y.Fang, W.Tan, et al, Preservation of aged paper using borax inalcohols and the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H25/18
CPCD21H25/18
Inventor 杨富巍刘妍
Owner TIANSHUI NORMAL UNIV
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