Iron Gall Ink Corrosion on Parchment. Preliminary Evaluation of Treatment Methods Using Aqueous Solutions

IF 0.7 4区管理学 Q3 INFORMATION SCIENCE & LIBRARY SCIENCE

Restaurator. International Journal for the Preservation of Library and Archival Material Pub Date : 2022-05-31 DOI:10.1515/res-2022-0003

Lisa Behrens, U. Henniges, Kerstin Forstmeyer, I. Brückle

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Abstract

Abstract Ink corrosion on parchment is a phenomenon that, unlike its counterpart on paper, has so far been little researched. The same applies to the options for conservation treatment. In order to provide a guide for conservation practice as well as further research, five water-based treatment methods were examined: calcium phytate with pH 5.3 or 3.0, a 0.5% (w/w) solution type B gelatine, a 1% (w/w) solution of phytic acid at pH 2.2 and calcium phytate in combination with gelatine. These were tested on 70 specimens cut from on piece of buffed vellum and 36 specimens from an early modern deed on parchment that showed signs of ink degradation. After treatment and accelerated ageing, the samples were examined with colorimetry and ATR-FTIR spectroscopy and tested with bathophenanthroline for free iron ions. None of the tested treatment methods achieved a fully reliable inhibition of ink corrosion, but apart from a moisture-catalysed acceleration of degradation reactions, no adverse effects were observed either. Results from ATR-FTIR suggest that oxidation plays a more important role in damage related to ink corrosion of parchment than hydrolysis.

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羊皮纸上的铁胆墨水腐蚀。水溶液处理方法的初步评价

羊皮纸上的油墨腐蚀是一种现象，与纸上的油墨腐蚀不同，迄今为止研究很少。这同样适用于保护处理的选择。为了为保护实践和进一步研究提供指导，研究了5种水基处理方法:pH为5.3或3.0的植酸钙、0.5% (w/w)的B型明胶溶液、1% (w/w) pH为2.2的植酸溶液和植酸钙与明胶的复合处理。他们对70个从抛光的牛皮纸上剪下来的样本和36个从早期现代羊皮纸上剪下来的样本进行了测试，这些样本都有墨水退化的迹象。经过处理和加速老化后，用比色法和ATR-FTIR光谱法检测样品，并用邻菲罗啉测定游离铁离子。所有测试的处理方法都没有达到完全可靠的油墨腐蚀抑制作用，但除了潮湿催化的降解反应加速外，也没有观察到不良影响。ATR-FTIR结果表明，氧化对羊皮纸油墨腐蚀的影响比水解更大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Restaurator. International Journal for the Preservation of Library and Archival Material INFORMATION SCIENCE & LIBRARY SCIENCE-

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Restaurator is the only international periodical specializing exclusively in the conservation of library and archive materials. Articles examine the many important aspects of this subject area, such as technology, practical experience and organization. They also focus on scientific basics: Many articles deal with the development of new preservation techniques and the improvement and better understanding of established methods. The articles are written in English with summaries in English, French and German. By reading Restaurator regularly, librarians, archivists and restorers can keep up to date with the latest research and developments. The editorial committee is made up of experts from well-known institutions and organizations from all over the world