Paper Conservation: Decisions & Compromises

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Fig. 4: turning the supporting paper between the verso of the left painting and the protective sheet of Japanese paper over the recto of the right painting cm) is placed over the recto of each gouache and pasted over the hinges onto the supporting paper with Methocel A4M 2.5% w/v. This construction protects the painting’s surface while reinforcing the row of hinges. Careful handling allows turning the pages without the risk of sliding and friction (Fig. 4). An illustrated instruction sheet has been designed for curators showing the handling of the parchments in the books step by step. References Albums de Croy, Tome II, Propriétés des Croy, II, Crédit communal de Belgique, Bruxelles, 1988. Albums de Croy, Tome XXVI, Recueil d’études, Actes du colloque organisé à Chimay et à Fourmies les 7 et 8 Mai 1992, Crédit communal de Belgique, Bruxelles, 1996. Irblich, E. ‘Die Konservierung von Handschriften unter Berücksichtigung der Restaurierung, Reprographie und Faksimilierung an Hand von Beispielen aus der Handschriftensammlung der Österreichischen Nationalbibliothek Wien’, Codices manuscripti, 11/1985, issue 1, p. 28 – 30. Les Albums de Croy. Exposition à la bibliothèque Royale Albert 1 er du 22 septembre au 27 octobre 1979. Société des bibliophiles et iconophiles de Belgique, Bruxelles, 1979. Michalski, S. ‘Using decision diagrams explore, document and teach treatment decisions with an example of their application to a difficult painting consolidation treatment’. Preprints of the ICOM-CC, 16th Triennal Conference, 19-23 September 2011, published on CD-ROM, Paper 1913. Authors Uta Landwehr | Junko Sonderegger Austrian National Library, Conservation Department, Josefsplatz 1, A-1015 Vienna, Austria Uta.Landwehr@onb.ac.at; Junko.Sonderegger@onb.ac.at ICOM-CC Graphic Documents Working Group Interim Meeting | Vienna 17 – 19 April 2013 16
A 1763 Illuminated Haggadah Manuscript: How Ineffective Past Treatments Resulted in an Antioxidant Research Project, Impacting Current Treatment Decisions Doris St-Jacques | Maria Bedynski | Lynn Curry | Season Tse Library and Archives Canada; Canadian Conservation Institute, Ottawa, Canada This 1763 Altona Haggadah (Fig. 1 ) is a mid-eighteenth-century illuminated manuscript from the Lowy Collection of Library and Archives Canada (LAC). The manuscript is particularly important as it does not represent high book art, but gives testimony to the way a middle class Ashkenazi family of the 18th century would have celebrated Passover. The text is accompanied by 97 illuminated miniatures and a fully illuminated frontispiece. Analysis of paper, ink, pigments and coatings from the manuscript was undertaken using Fourier transform infrared spectroscopy (FTIR), energy dispersive x-ray spectroscopy (EDS), scanning electron microscopy (SEM), x-ray diffraction (XRD) and/or polarized light microscopy (PLM) at Canadian Conservation Institute (CCI) (Helwig, Corbeil: 2009). The text is written in iron gall ink and the pigments used in illuminations are predominantly red, blue and green. They were identified as dry process vermilion or cinnabar, Prussian blue, and atacamite/paratacamite (copper chloride hydroxides). Unidentified yellow, glaze-like paint is very thinly applied. Gold toned colours were found to be composed of brass flakes. The colours are transparent and the pigment vehicle is hard and glossy. Lighter colours are also present although these are less concentrated dispersions of the same red, blue and green pigments. Gum was identified as the only binding media present. The paper support is in fragile condition due to iron gall ink and copper containing atacamite corrosion. On several pages, ink had penetrated to the verso of the page, making the text difficult or impossible to read. It is unevenly discoloured and stained throughout. Handling and use is the cause of much of the grime around the edges of the folios. There are large brown liquid stains on several pages caused by splashed red wine, most probably during the ceremonial Passover meal. Fig. 1: Frontispiece of the 1763 Altona Haggadah, from the Jacob M. Lowy Judaica Collection, Library and Archives Canada, (BM674.6 A3 1763 xxfol. LOWY) Past Conservation Treatment Highlights 1987 examination revealed that deterioration of the paper was further advanced in areas of densely applied iron gall ink (Fig. 2) The green copper pigment had also caused similar deterioration of the paper. Treatment in 1987 included dismantling the manuscript and deacidifying the pages with solvent based Wei T’o #2 solution (methyl/ethyl magnesium carbonates in 1,1 Dichloro-1-Fluoroethane (HCFC-141B) and methanol). This was followed by tissue repairs using carboxy-methyl-cellulose as an adhesive. Examination In 2007 revealed many new cracks and losses throughout the manuscript. It ICOM-CC Graphic Documents Working Group Interim Meeting | Vienna 17 – 19 April 2013 17
Page 1 and 2: Paper Conservation: Decisions & Com
Page 3 and 4: Content Lieve Watteeuw Introduction
Page 5: Michael Wheeler | Nicholas Barnard
Page 8 and 9: New Trends in Preservation in the D
Page 10 and 11: and monitoring against adverse envi
Page 12 and 13: Steve Hobaica, Patrick Loughney, Ma
Page 14 and 15: The Albums of Duke Charles de Croÿ
Page 18 and 19: Fig. 2: Close-up of some of the los
Page 20 and 21: manuscript paper, the binding would
Page 22 and 23: Figure 2 partial sewing: the blue d
Page 24 and 25: Books in Exhibitions: History and A
Page 26 and 27: Fig. 4 Museum in London and the pre
Page 28 and 29: Risk and Safety of Illuminated Manu
Page 30 and 31: Fig. 2 Atlas, the Crown papers are
Page 32 and 33: Acknowledgments The authors would l
Page 34 and 35: Verdigris I: Compromises in Conserv
Page 36 and 37: Verdigris 2: Wet Chemical Treatment
Page 38 and 39: Integrated Modelling: The Demograph
Page 40 and 41: Fig. 3: The consequence of 50 insta
Page 42 and 43: Characterisation of Historical Pape
Page 44 and 45: pling is required, tide-lines are c
Page 46 and 47: Study of Phytate Chelating Treatmen
Page 48 and 49: Evaluation of stochiometric effects
Page 50 and 51: Practice and Progress in the Conser
Page 52 and 53: Fig. 1 Fig. 2 plex picture and prov
Page 54 and 55: Fig. 2: Coloured paper strips place
Page 56 and 57: the fire (on the other hand paper,
Page 58 and 59: inform decisions on conservation tr
Page 60 and 61: This paper summarizes what is known
Page 62 and 63: 2. Methods An interdisciplinary met
Page 64 and 65: Fig. 4: Dyed endpaper pasted at the
Page 66 and 67:
Preservation of Architectural Drawi
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Notes 1 According Salvador Muñoz V
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course of time under the influence
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the curators in review of the treat
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cellulose powders with cellulose et
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Authors Xing Kung Liao Conservator
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Fig. 2: Our Railroad Workers and th
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The Restoration of Cartoons at the
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tation presumes that the works are
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To Remove or Retain? - Extensive In
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Fig. 4 repeated applications until
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The Migration of Hydroxy Propyl Cel
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tion issue allowed a visualisation
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Ethical Considerations Concerning t
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emoved with damp cotton swab. Then
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Conservation of a Book of Hours fro
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Fig. 4: Pigments movement and conse
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Notes 1 Brazilwood lake, lapis lazu
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pages, which would easily have torn
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The Microflora Inhabiting Leonardo
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Acknowledgments The authors would l
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Microorganisms in Books - First Res
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hyaline white mycelia on and in the
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Deconstructing the Reconstruction E
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Fig. 3: Poster after 2012 conservat
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Conservators’ Investigation of Ch
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had been used, may be false-positiv
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function will provide a holistic pi
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Fig. 2: Patriarchs of Chan Buddhism
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ing techniques, which build upon fu
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Applications of Image Processing So
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Fig. 3 Fig. 4 images in a single wi
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Analysing Deterioration Artifacts i
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Fig. 3 similarity maps. Similarity
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Strategy in the Case of a Wrecked P
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without preliminary consolidation.
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Fiber Optic Reflectance Spectroscop
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Fig. 3: 18 th century paper seal, i
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Fig. 3 Fig. 4 of responsibilities r
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Characterising the Origin of Carbon
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Fig. 3: Sampling depth for ATR spec
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Fig. 2: Filmoplast® tape attached
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Pluchart, F. 1971. Pop Art Et Cie.
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Fig. 3: The reverse of left screen
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porting the reverse of severe creas
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Paper Conservation: Decisions & Compromises

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