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Book treatment method

A book and compound treatment technology, applied in the post-treatment of waste paper, etc., can solve the problems of unfavorable alkali retention, adverse effects on the surface and appearance of documents, and unfavorable alkali retention, etc., so as to prolong the acidification time and storage life Prolonged, well-uniform effect

Inactive Publication Date: 2015-05-27
河北地质大学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the commonly used alkali retains calcium carbonate as an insoluble substance, which deposits on the surface of the paper, which is not conducive to the function of retaining alkali, and is also not conducive to achieving the amount of alkali retention. At the same time, it also adversely affects the surface and appearance of the document.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Detect the pH value of book paper to be 3.6 with supercritical CO 2 Carry out deacidification treatment. The treatment conditions are 10MPa, 32°C, and the treatment time is 0.1h. The entrainer used in the deacidification treatment is urea; a composite treatment solution containing nanomaterials with core-shell structure is prepared, and the composition of the composite treatment solution is nanomaterials with core-shell structure: propylene glycol : sodium carboxymethyl cellulose: sodium hydroxide proportioning is 0.03:1:0.003:0.05, the core material calcium carbonate and magnesium carbonate of the core-shell structure nano material, the shell material is polymethacrylate, the described will For books that have undergone deacidification treatment, the composite treatment solution is sprayed into contact with the books. The pH of the treated books reaches 9.3.

Embodiment 2

[0029] The pH value of the book paper is detected to be 6.2, and a composite treatment solution containing a core-shell structure nanomaterial is prepared. The composition of the composite treatment solution is a core-shell structure nanomaterial: ethanol: methacrylate: calcium propionate ratio of 0.05:1: 0.002:0.08, the core layer material calcium carbonate and calcium hydroxide of the core-shell structure nanomaterial, the shell layer material is polyacrylate, and the books that will be deacidified, the composite treatment solution is sprayed with the books make contact. The pH of the treated books reaches 9.6.

Embodiment 3

[0031] The pH value of the book paper is detected to be 5.1, and a composite treatment solution containing a core-shell structure nanomaterial is prepared. The composition of the composite treatment solution is a core-shell structure nanomaterial: ethanol: methacrylate: calcium propionate ratio of 0.03:1: 0.002:0.05, the core layer material calcium carbonate and calcium hydroxide of the core-shell structure nanomaterial, the shell layer material is polyacrylate, and the book that will be deacidified, the composite treatment solution is sprayed with the book make contact. The pH of the treated books reaches 9.8.

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PUM

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Abstract

The invention aims to provide a simple and practical book treatment method. Book paper is treated preventively, and compound treatment liquid which is made of a core-shell-structured nano material of a core-shell structure and is capable of slowly releasing alkaline substances is adopted for treating books. A reasonable treatment path is selected according to the acidification degree of to-be-treated paper; not only can the old books with relatively high acidity be treated, but also relatively new books can be protected preventively. According to the method, the books not only can be hardly damaged, and also can be stored for a long time; the pH value and the alkaline retaining amount of the whole treated books keep the relatively good uniformity, and the alkaline retaining amount at different parts of a single page does not exceed 10%. The service life of common paper treated by the method can be prolonged by 5-10 times.

Description

technical field [0001] The invention relates to a paper protection treatment method, in particular to a paper document protection treatment method. Background technique [0002] Books are the main carrier and representation of human material civilization and culture. Although there is a tendency for books to be digitized, it is unrealistic to completely preserve all kinds of existing books with preservation value electronically. Moreover, books are not only cultural carriers, but many books that have been handed down to the present are handicrafts and artworks that embody human wisdom. How to protect these precious ancient books and documents, so that the damaged ancient books and documents can be repaired in time is a very meaningful work. [0003] The inherent problem of book protection is mainly to prevent the destruction of the book-making materials themselves, to be precise, to delay and stop the process of acid-returning and aging of paper. Studies have shown that ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H25/18
Inventor 不公告发明人
Owner 河北地质大学
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