Metal acid inks and their preservation. Case study: 16th century documents in the Archivo Histórico Provincial de Santa Cruz de Tenerife.

Ania Rodríguez Maciel; Elisa Díaz González

doi:10.14568/cp30897

Autores

Ania Rodríguez Maciel Departamento de Bellas Artes, Universidad de La Laguna, Santa Cruz de Tenerife, España https://orcid.org/0000-0002-8300-8520
Elisa Díaz González Departamento de Bellas Artes, Universidad de La Laguna, Santa Cruz de Tenerife, España https://orcid.org/0000-0002-6265-3213

DOI:

https://doi.org/10.14568/cp30897

Palavras-chave:

Tintas ferrogálicas, Corrosão, Século XVI, Tenerife, Arquivos, Protocolo de inspeção

Resumo

As tintas ferrogálicas foram utilizadas durante séculos, razão pela qual a maioria das instituições mantem uma grande abundância de manuscritos com este tipo de tinta. Dada a composição das tintas ferrogálicas, o principal problema que afeta estes manuscritos é a corrosão. Este trabalho teve como objetivo definir um protocolo de inspeção de documentos do século XVI que integram os fundos do Archivo Histórico Provincial de Santa Cruz de Tenerife, que possa também ser aplicado a outros documentos semelhantes. Este protocolo envolve a inspeção de cada documento com luz visível difusa e transmitida, radiação UV e microscopia ótica digital. Foi utilizada uma escala de cinzentos Kodak para avaliar a profundidade de cor das tintas. Os resultados obtidos indicam que uma parte significativa dos documentos analisados se encontra nas condições 3 e 4, ou seja, em mau e muito mau estado de conservação, o que indica um elevado nível de vulnerabilidade.

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