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Abstract(s)
O objetivo deste estudo foi entender quais os principais fatores de degradação da tinta ferrogálica, quais os danos causados nos documentos e contribuir para a identificação do método mais adequado para a sua consolidação. O estágio integrou-se no plano de estudos do mestrado da Escola das Artes da Universidade Católica Portuguesa e insere-se no Projeto de Digitalização de Fundos de Arquivo do Arquivo Distrital do Porto, enquadrado pelo PRR- Plano de Recuperação e Resiliência do Ministério da Cultura. Desta forma, o trabalho de estágio focou-se na avaliação e preparação da documentação com tinta ferrogálica para o processo de digitalização, permitindo perceber a dimensão do problema de conservação que antecede a duplicação da documentação mais antiga e fornecendo experiência prática na resolução desta problemática. Pretendeu-se procurar soluções inovadoras para a resolução deste problema de conservação, através da comparação de diferentes métodos e materiais de intervenção, sempre numa ótica de intervenção mínima e preservação a longo prazo. No contexto do estágio foram identificados os principais problemas que podemos encontrar em documentos históricos com este tipo de tinta. A partir dessa realidade procurou-se entender de que forma se pode retardar essa degradação e qual o método mais eficaz de consolidação. Deste modo, foi produzida uma tinta ferrogálica a partir de uma receita medieval, a qual foi aplicada, simultaneamente, num papel histórico e num papel neutro (papel de filtro usado regularmente em laboratório, sem aditivos), como forma de comparação. Sobre estes papeis e tintas foram aplicados três consolidantes, a Tylose®, o Klucel®, e o Crompton Tissue®. As amostras foram sujeitas a envelhecimento artificial, seguindo a norma ISO 5630:3 de 1986, devidamente analisadas e os resultados interpretados. Interessa clarificar qual o método ou métodos mais eficazes, nomeadamente, que com o passar do tempo demonstre maior estabilidade físico-química, tenha uma boa performance operacional e, consequentemente, possa vir a ser considerado o mais adequado para este tipo de trabalho.
The main goals of this study were to understand the main factors contributing to the degradation of ferrogalic ink, which damages caused to the documents and to help identify the most appropriate method for its consolidation. This internship was performed as part of the master's degree programme at the School of Arts of the Portuguese Catholic University, being part of the Scanning Project of Archive Funds at the Porto District Archive, developed under the Ministry of Culture's PRR - Recovery and Resilience Plan. Therefore, in this internship there was a focus on assessing and preparing documentation with ferrogalic ink for the scanning process, in order to understand the scale of the conservation problem that precedes the duplication of older documentation and providing practical experience in solving this problematic. The aim was to find innovative solutions to this conservation problem by comparing different intervention methods and materials, always considering minimal intervention strate gies and long-term preservation. In the context of the internship, the main problems found in historical documents with this type of ink were identified. Based on this reality, we tried to understand how this degrada tion can be slowed down and what the most efficient consolidation method is. According to this, a ferrogalic ink was produced from a medieval recipe, which was applied simultaneously to historical paper and neutral paper (filter paper regularly used in the laboratory, without additives), as a mean of comparison. Three different consolidation methods were applied to these papers and inks: Tylose®, Klucel® and Crompton Tissue®. The samples were artificially ageing, following the ISO 5630:3 of 1986, duly analysed and the results interpreted. The aim was to clarify which method or methods were the most effective, namely those that, over time, demonstrate greater physical and chemical stability, had good operational performance and, consequently, can be considered the most suitable for this type of work.
The main goals of this study were to understand the main factors contributing to the degradation of ferrogalic ink, which damages caused to the documents and to help identify the most appropriate method for its consolidation. This internship was performed as part of the master's degree programme at the School of Arts of the Portuguese Catholic University, being part of the Scanning Project of Archive Funds at the Porto District Archive, developed under the Ministry of Culture's PRR - Recovery and Resilience Plan. Therefore, in this internship there was a focus on assessing and preparing documentation with ferrogalic ink for the scanning process, in order to understand the scale of the conservation problem that precedes the duplication of older documentation and providing practical experience in solving this problematic. The aim was to find innovative solutions to this conservation problem by comparing different intervention methods and materials, always considering minimal intervention strate gies and long-term preservation. In the context of the internship, the main problems found in historical documents with this type of ink were identified. Based on this reality, we tried to understand how this degrada tion can be slowed down and what the most efficient consolidation method is. According to this, a ferrogalic ink was produced from a medieval recipe, which was applied simultaneously to historical paper and neutral paper (filter paper regularly used in the laboratory, without additives), as a mean of comparison. Three different consolidation methods were applied to these papers and inks: Tylose®, Klucel® and Crompton Tissue®. The samples were artificially ageing, following the ISO 5630:3 of 1986, duly analysed and the results interpreted. The aim was to clarify which method or methods were the most effective, namely those that, over time, demonstrate greater physical and chemical stability, had good operational performance and, consequently, can be considered the most suitable for this type of work.
Description
Keywords
Arquivo Distrital do Porto Documentos gráficos Tinta ferrogálica Consolidação Porto District Archive Graphic documents Ferrogalic ink Consolidation