Notice bibliographique du personnel « Treatment considerations for the Haggadah Prayer Book: evaluation of two antioxidants for treatment of copper-containing inks and colorants »
- Titre
- Treatment considerations for the Haggadah Prayer Book: evaluation of two antioxidants for treatment of copper-containing inks and colorants
- Auteur ou éditeur
- Tse, Season
- Trojan-Bedynski, Maria
- St-Jacques, Doris
- Date de publication
- 2012
- Collation
- 87-97
- Titre de la source
- American Institute for Conservation Book and Paper Group Annual
- Numéro de la source
- vol. 31
- Résumé
- The Altona Haggadah, ca. 1763, is an illuminated manuscript containing iron-gall ink and numerous drawings with pigments such as atacamite, or basic copper chloride. It was deacidified with Wei T’o in 1987. Additional treatment is necessary to delay further damage to the paper caused by copper-catalyzed oxidation. The water sensitivity if the manuscript required that only non-aqueous treatments be considered. Two anti-oxidants, tetrabutylammonium bromide (TBAB) and 1-ethyl-3 methylimidazolium bromide (EMIMBr) were chosen for testing. Wei T’o and Bookkeeper were used for deacidification. Iron-gall ink, iron-copper ink, atacamite, and verdigris were applied on unsized Whatman #1 paper and pre-aged. Six combinations of antioxidant and deacidification treatments were used on pre-age samples. The treated pigment and ink samples were aged at 80°C and 65% RH. Both aged and unaged samples were evaluated using color measurement, zero-span tensile tests, and pH measurement. Inductively coupled plasma atomic emission spectrometry (ICP-AES) was also carried out by an external laboratory to determine the concentrations of magnesium, iron, and copper in the samples. The tensile strength results showed that the deacidification alone benefitted the two sets of acidic ink samples; treatment with the two antioxidants did not provide additional protection. The benefits of antioxidants with deacidification were clearly shown with atacamite samples; the results with verdigris samples were inconclusive.
- Langue
- English = Anglais
- Sujet
- Haggadah Prayer Book; Paper; Iron-gall Ink; Atacamite; Copper Chloride; Tetrabutylammonium Bromide; Methylimidazolium Bromide
- Pays
- United States
- Type de document
- Journal Article = Article de périodique
- Localisation
- # 15933
- Clé
- 1950
- Collection
- Staff Bibliography