Enzymes in Solvent Conditioned Poultices for the Removal of Starch-based Adhesives from Iron Gall Ink Corroded Manuscripts

Verfasser / Beitragende:
[Dirk Schönbohm, Agnes Blüher, Gerhard Banik]
Ort, Verlag, Jahr:
2004
Enthalten in:
Restaurator, 25/4(2004-12), 267-280
Format:
Artikel (online)
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024 7 0 |a 10.1515/REST.2004.267  |2 doi 
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245 0 0 |a Enzymes in Solvent Conditioned Poultices for the Removal of Starch-based Adhesives from Iron Gall Ink Corroded Manuscripts  |h [Elektronische Daten]  |c [Dirk Schönbohm, Agnes Blüher, Gerhard Banik] 
246 1 |a Enzymes présentes dans les compresses contenant des solvants afin de retirer les colles à base d'amidon des manuscrits corrodés à l'encre gallique 
520 3 |a Semi-aqueous amylase poulticing methods were tested with the objective to detach silking from archival documents weakened by iron gall ink corrosion. Originally amylose gels on the basis of methylcellulose as gel forming agent containing methyl cellosolve were used to remove wheat starch paste adhesives modified by addition of aluminiumsulfate from test artifacts that have been restrenthened according to the traditional siliking technique. These experiments led to the development of polyethylenoxide gels in which the methyl cellosolve and amylase were incorporated. A system was developed by which a fully aqueous amylase gel was used to detach silking from iron gall ink test artifacts protected from the contact with water by having been impregnated with ethylene glycol monomethylether (EGMM) - water blends. The migration of ink and degradation products could successfully be prevented when the artifact to be poulticed was firstly impregnated with the organic solvent. The method was sucessfully used on original artifacts. 
540 |a © 2004 K. G. Saur Verlag GmbH, Ortlerstr. 8, D-81373 München 
700 1 |a Schönbohm  |D Dirk  |u Dipl.-Rest., Frankfurter Tor 9, 10 243 Berlin, Germany, Tel: ++49 +3029047754, Fax: ++49 +3029047750. E-mail: dsrestaurierung@t-online.de  |4 aut 
700 1 |a Blüher  |D Agnes  |u Schweizerische Landesbibliothek, Hallwylstraße 15, CH- 3003 Bern, Switzerland, Tel.: ++41 +31 +322 2359, Fax: ++41 +31 322 8463. E-mail: agnes.blueher@slb.admin.ch, http://www.snl.ch  |4 aut 
700 1 |a Banik  |D Gerhard  |u Staatliche Akademie der Bildenden Künste, Höhenstraße 16, 70736 Fellbach, Germany, Tel: ++49 +711 6646 38-0, Fax: ++49 +711 58 64 53. E-mail: sekretariat@sabk.de, www.sabk.de   |4 aut 
773 0 |t Restaurator  |d Walter de Gruyter GmbH & Co. KG  |g 25/4(2004-12), 267-280  |x 0034-5806  |q 25:4<267  |1 2004  |2 25  |o REST 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Schönbohm  |D Dirk  |u Dipl.-Rest., Frankfurter Tor 9, 10 243 Berlin, Germany, Tel: ++49 +3029047754, Fax: ++49 +3029047750. E-mail: dsrestaurierung@t-online.de  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Blüher  |D Agnes  |u Schweizerische Landesbibliothek, Hallwylstraße 15, CH- 3003 Bern, Switzerland, Tel.: ++41 +31 +322 2359, Fax: ++41 +31 322 8463. E-mail: agnes.blueher@slb.admin.ch, http://www.snl.ch  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Banik  |D Gerhard  |u Staatliche Akademie der Bildenden Künste, Höhenstraße 16, 70736 Fellbach, Germany, Tel: ++49 +711 6646 38-0, Fax: ++49 +711 58 64 53. E-mail: sekretariat@sabk.de, www.sabk.de   |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Restaurator  |d Walter de Gruyter GmbH & Co. KG  |g 25/4(2004-12), 267-280  |x 0034-5806  |q 25:4<267  |1 2004  |2 25  |o REST 
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