The Analysis of Alkaline Reserve in Paper after Deacidification
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Vladimír Bukovský
SUMMARIES
The creation of sufficiently large alkaline reserves is, besides elimination of acidity, another important aim of any deacidification of groundwood papers. It is problematic reaching a required alkaline reserve of 2% because the amount of alkaline reserve retained in the paper is determined by the type of paper and its initial acidity. It is also difficult because the amount and concentration of the chosen deacidification agent necessary for both aims must be adjusted to take both into account. With a mass method this adjusting is almost impossible. The research reported aimed at finding the relationship between the alkaline reserve measured as change of paper weight before and after deacidification on one side, and by titration on the other
Parallèlement à l'élimination de l'acidité un autre but important recherché par la désacidification de papiers est de créer une réserve alcaline suffisante. Ce n'est pas facile d'obtenir la quantité souhaitée de 2% de réserve alcaline car il faut ajuster la quantité et la concentration de la solution de neutralisation à chaque type de papier et à son pH d'origine. Ceci est presque impossible lors d'une neutralisation de masse. L'objectif poursuivi par les recherches en question était d'établir une relation entre les quantités de réserve alcaline obtenues en mesurant le poids du papier avant et après la désacidification et les résultats obtenus par titration.
Das Ziel der konservatorisch-restauratorischen Neutralisierung von sauer gefertigtem holzhaltigem Papier ist, neben dem Neutralisieren von dort vorhandener Säure, die Schaffung einer ausreichenden alkalischen Reserve. Es ist schwierig eine angestrebte Menge von ca. 2% zu erreichen, weil Menge und Konzentration der Neutralisierungslösung entsprechend dem Papiertyp und seinem Ausgangs-pH eingestellt werden müssen. Bei einer Massenneutralisierung ist dies geradezu unmöglich. Ziel der Untersuchungen, über die berichtet wird, war es, eine Relation zwischen den durch Wiegen und den durch Titration gemessenen Mengen an alkalischer Reserve zu finden.
© 2005 K. G. Saur Verlag GmbH, Ortlerstr. 8, D-81373 München
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- A New Technique for Strengthening Book Papers Using Cellulose Derivatives
- Mass Deacidification of Papers and Books III: Study of a Paper Strengthening and Deacidification Process with Amino Alkyl Alkoxy Silanes
- The Analysis of Alkaline Reserve in Paper after Deacidification
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Articles in the same Issue
- Behaviour of Paper Documents after Irradiation
- Evaluation of the Antifungal Activity of Products Used for Disinfecting Documents on Paper in Archives
- A New Technique for Strengthening Book Papers Using Cellulose Derivatives
- Mass Deacidification of Papers and Books III: Study of a Paper Strengthening and Deacidification Process with Amino Alkyl Alkoxy Silanes
- The Analysis of Alkaline Reserve in Paper after Deacidification
- Removing Metallic Stains from Paper Objects Using Chelating Agent EDTA