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Novel method for performing deacidification repairing on ancient books

A restoration method and technology from ancient books, applied in post-processing of waste paper, textiles and papermaking, fiber treatment, etc., can solve the problems of difficult operation, no discovery, high cost, etc., achieve obvious acid removal effect, avoid secondary damage, good The effect of acids

Active Publication Date: 2018-05-08
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is easy to change the color of the paper, making newsprint, periodicals, etc. yellow, and the treatment process cannot play a role in reinforcement. In addition, the investment in equipment and instruments is large, and large-scale promotion is limited.
Judging from the application of deacidification repair technology in foreign countries, in the 1970s and 1980s, gas-phase deacidification repair was highly praised by people for its advantages of large-scale processing, but the requirements for process conditions were high, there were safety hazards, high toxicity, and large investment , The disadvantage of uneven treatment effect limits its wide application
[0010] At present, there are many similar gas-phase and liquid-phase deacidification repair processes at home and abroad, but they all have their own defects, such as high cost, difficult operation, high toxicity of deacidification agents, large-scale failure, potential safety hazards, and pollution. Environment, etc. So far, no practical method for deacidification and restoration of ancient books has been found.

Method used

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  • Novel method for performing deacidification repairing on ancient books
  • Novel method for performing deacidification repairing on ancient books
  • Novel method for performing deacidification repairing on ancient books

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take "Medical Ancient Books" - People's Medical Publishing House 1937 edition 5 copies about 0.004m 3 , the original humidity of the paper in the book is about 8.6% by sampling. 3 In the deacidification device, the system is dehumidified first, and the dehumidification time is 4 hours, and the dehumidifier is turned off after the time is reached. Then turn on the vacuum pump, evacuate the pressure in the system to -0.05mpa and then turn off the vacuum pump. Then turn on the ultrasonic atomizer, choose NaOH solid and water as the deacidification agent and mix them evenly according to the mass ratio of 20:80, put them into the container, use the ultrasonic transducer to atomize the prepared NaOH solution, and import it into the The deacidification repair operation is carried out in a sealed container, and the air humidity in the system is controlled at about 50% by controlling the gas pipeline valve, and the pH value of the ancient book is monitored while neutralizing th...

Embodiment 2

[0038] Take "Medical Ancient Books" - People's Medical Publishing House 1937 edition 5 copies about 0.004m 3 , the original humidity of the paper in the book is about 9.2% by sampling. 3 In the deacidification device, the system is dehumidified first, and the dehumidification time is 3 hours, and the dehumidifier is turned off after the time is reached. Then turn on the vacuum pump, and turn off the vacuum pump after the pressure in the system is evacuated to -0.07mpa. Then turn on the ultrasonic atomizer, choose NaOH solid and water as the deacidification agent and mix them evenly according to the mass ratio of 20:80, put them into the container, use the ultrasonic transducer to atomize the prepared NaOH solution, and import it into the The deacidification repair operation is carried out in a sealed container, and the air humidity in the system is controlled at about 50% by controlling the gas pipeline valve, and the pH value of the ancient book is monitored while neutralizi...

Embodiment 3

[0041] Take "Medical Ancient Books" - People's Medical Publishing House 1937 edition 5 copies about 0.004m 3 , the original humidity of the paper in the book is about 7.3% by sampling. 3 In the deacidification device, the system is dehumidified first, and the dehumidification time is 4 hours, and the dehumidifier is turned off after the time is reached. Then turn on the vacuum pump, evacuate the pressure in the system to -0.05mpa and then turn off the vacuum pump. Then turn on the ultrasonic atomizer, select NaOH solid and water as the deacidification agent and mix them evenly according to the mass ratio of 30:70, put them into the container, use the ultrasonic transducer to atomize the prepared NaOH solution, and introduce it into the The deacidification repair operation is carried out in a sealed container, and the air humidity in the system is controlled at about 50% by controlling the gas pipeline valve, and the pH value of the ancient book is monitored while neutralizing...

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Abstract

The invention discloses a novel method for performing deacidification repairing on ancient books. The treatment method comprises the following steps: putting to-be-treated ancient books into a closeddeacidification repairing device, performing dehumidifying operation and vacuumizing operation on the system sequentially after sealing to maintain the system to be dry, maintaining stable under negative pressure, starting a fan group, directly conveying nano-scale alkaline deacidification powder into the deacidification repairing device by a gas pipeline, or atomizing an alkaline deacidificationsolution by an ultrasonic atomizer and conveying into the deacidification repairing device through a gas pipeline, enabling the to-be-treated ancient books to absorb the alkaline deacidification agentcompletely and uniformly, and monitoring the pH value of the ancient books to realize deacidification repairing on the ancient books. The method is suitable for repairing of the ancient books and isalso suitable for deacidification repairing and storage treatment on files, literatures, books as well as modern paper, cotton and linen products.

Description

technical field [0001] The invention relates to the field of deacidification and restoration of ancient books, in particular to a novel method for deacidification and restoration of ancient books. Background technique [0002] In various libraries, museums, and archives in China, there are thousands of precious books, paintings, modern newspapers, archives, and other cultural relics. They are the essence of the Chinese nation's excellent traditional culture and have important Historical value, cultural value, and information value are important components of Chinese cultural heritage and have historical significance that cannot be duplicated. Paper, as the carrier of the essence of these characters, has become more and more serious about being eaten by moths, acidified, mildewed, and damaged with the passage of time, and the situation is precarious. Paper is made of fiber raw materials. The stability of cellulose is one of the most important conditions for maintaining the p...

Claims

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Application Information

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IPC IPC(8): D21H25/18D06M11/38D06M11/44D06M11/49D06M11/76D06M13/332D06M101/06
CPCD06M11/38D06M11/44D06M11/49D06M11/76D06M13/332D21H25/18D06M2101/06
Inventor 樊慧明陈建华王海滨甘谦李嘉禾高达郭鸣凤
Owner SOUTH CHINA UNIV OF TECH
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