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Abstract(s)
A preservação para a salvaguarda do património engloba muito mais que a conservação e o restauro dos objetos artísticos e históricos, ela vai muito além da manutenção desses bens, abrangendo desde o estudo aprofundado acerca dos materiais que constituem as obras até os cuidados preventivos, visando eliminar qualquer risco existente no ambiente envolvente que possa afetar a integridade desses bens, seja a curto, médio ou longo prazo. Esta dissertação tem como objetivo a caracterização dos suportes das Cartas Patentes no que diz respeito à morfologia de suas fibras, aos tipo de polpa e seu processamento, à encolagem, às cargas e ao material gráfico, utilizando além dos testes visuais, testes microquímicos, exames sob fluorescência de ultra violeta, microscopia electrónica de varrimento (SEM EDS) e exames de espectroscopia de infravermelho (FTIR). Com o intuito de comparar a evolução dos materiais que constituem esses documentos, escolheu-se dois exemplares, um do século XVIII e o outro do século XIX, para estudarmos as diferenças da composição dos papéis no decorrer dos quase cem anos que separam as duas cartas patentes selecionadas para esse estudo. Mais além, utilizar a informação extraída desse estudo, junto ao levantamento das patologias encontradas nos exemplares analisados, para assim, traçar e executar um plano de tratamento seguro, que utilize materiais eficazes, compatíveis, inertes e reversíveis, dentro do rigor técnico e científico que esse trabalho exige. Finalmente, indicar qual a melhor forma de acondicionamento desses documentos, visando sua conservação preventiva, tanto no âmbito da reserva como em itinerância considerando que sua função enquanto documento histórico é estar apto às exposições e a apreciação e conhecimento público.
The preservation for the safeguarding of the heritage encompasses much more than the conservation and restoration of artistic and historical objects, it goes far beyond the maintenance of these assets, ranging from the in depth study of the materials that constitute the object to the preventive care, aiming to eliminate any existing risk in the surrounding environment that may effect the integrity of these assets, whether in the short, medium or long term. This dissertation aims to characterize the supports of the Patent Letters by studying the morphology of its fibers, type of pulp and its processing, fillers, binders and graphic materials, using in addition to visuals test, the spot tests, exams under ultra violet fluorescence, scanning electron microscopy (SEM EDS) and infrared spectroscopy (FTIR ATR) exams. In an attempt to understand the evolution of the materials that make up theses documents, two patents letters were chosen, one from the 18th century and the other from 19th century, to study the differences in the composition of the papers over the almost hundred years that separate these two selected letters for this study. Furthermore, use the information extracted from this study, together whit the survey of the pathologies found in the analysed objects, in order to design and execute a safe treatment plan, using effective, compatible, inert and reversible materials, within the technical and scientific rigor that this king of job requires. Finally, point which is the best way of storing theses documents, aiming at their preventive conservation, both within the scope of the storage and in roaming, considering that its function as a historical document is to be able to be exhibited to public appreciation and knowledge.
The preservation for the safeguarding of the heritage encompasses much more than the conservation and restoration of artistic and historical objects, it goes far beyond the maintenance of these assets, ranging from the in depth study of the materials that constitute the object to the preventive care, aiming to eliminate any existing risk in the surrounding environment that may effect the integrity of these assets, whether in the short, medium or long term. This dissertation aims to characterize the supports of the Patent Letters by studying the morphology of its fibers, type of pulp and its processing, fillers, binders and graphic materials, using in addition to visuals test, the spot tests, exams under ultra violet fluorescence, scanning electron microscopy (SEM EDS) and infrared spectroscopy (FTIR ATR) exams. In an attempt to understand the evolution of the materials that make up theses documents, two patents letters were chosen, one from the 18th century and the other from 19th century, to study the differences in the composition of the papers over the almost hundred years that separate these two selected letters for this study. Furthermore, use the information extracted from this study, together whit the survey of the pathologies found in the analysed objects, in order to design and execute a safe treatment plan, using effective, compatible, inert and reversible materials, within the technical and scientific rigor that this king of job requires. Finally, point which is the best way of storing theses documents, aiming at their preventive conservation, both within the scope of the storage and in roaming, considering that its function as a historical document is to be able to be exhibited to public appreciation and knowledge.
Description
Keywords
Alcalinidade Branqueamento Desacidificação Documentos gráficos Testes microquímicos Tratamento aquoso Alkalinity Bleaching Deacidification Graphic documents Spot test Washing