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Research on De-acidification of Preserved Books.

Research Project

Project/Area Number 60303025
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 林産学
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

OYE Raysabro  Tokyo Univ. of Agr.& Techn.,Faculty of Agr.: Professor, 農学部, 教授 (10015076)

Co-Investigator(Kenkyū-buntansha) OKAYAMA Takayuki  Tokyo Univ. of Agr. & Techn., Faculty of Agr.:Res.Assoc., 農学部, 助手 (70134799)
MIURA Sadatoshi  Tokyo National Inst. of Cultural Properties: Senior Scientist, 主任研究官 (50099925)
MASUDA Katuhiko  Tokyo National Inst. of Cultural Properties: Research Director, 研究室長 (40099924)
YASUE Akio  , 国立国会図書館協力課
USUDA Makoto  Univ, of Tokyo, Faculty of Agr.: Professor, 農学部, 教授 (40011887)
Project Period (FY) 1985 – 1986
Project Status Completed (Fiscal Year 1986)
Budget Amount *help
¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 1986: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1985: ¥3,300,000 (Direct Cost: ¥3,300,000)
KeywordsDegradation of paper / Acidic paper / Neutral paper / Alum-treatment / Book paper / Accelate ageing / Degradation rate / Diethyl-zinc
Research Abstract

Since the modern paper-making technology has been introduced in the middle of the nineteenth century, a lot of books containing so-called acid papers has been published until to-day. Acid paper is more easily deteriorated compared to neutral papers like washi, the traditional Japanese folk art paper. This research project involves the examination of the present state of books preserved in the libraries to undertake the countermeasures to de-acidify papers to elongate the life of books. For de-acidification, alkyl-magnesium-carbonates and diethyl-zinc have been investiated. A specially designed apparatus for de-acidification of books was set up by the grant. Detailed conditions for de-acidifying by diethyl-zinc have been investigated successfully and its effects were evaluated from degradation rates of papers by the accelation tests. Washi is sometimes damaged by alum, an acidic agent, applied to improve the drawing properties for painting from old days. The effects of alum on washi was also investigated from a scientific view point. In order to prevent degradation of papers, the fundamental interpretation of the mechanism in degradation of paper, as well as cellulosic fibres for paper-making is indispensable. A new concept on degradation of papers has been established through the study in the project.

Report

(1 results)
  • 1986 Final Research Report Summary

URL: 

Published: 1987-03-31   Modified: 2016-04-21  

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