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Cold Storage?

How it Affects Face- and Back-mounted Chromogenic Prints as Composites
  • Franziska Leidig , Kristina Blaschke-Walther , Ute Henniges und Irene Brückle
Veröffentlicht/Copyright: 23. Dezember 2022
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Abstract

Six face- and back-mounted chromogenic print samples (each 120 × 160 cm) and one pre-damaged original photograph (120 × 120 cm) were exposed to alternating temperature conditions. Cold storage was set at 8 °C with a slightly fluctuating relative humidity at an average of 55 % in a cooling chamber; room temperature storage occurred at 19 to 27 °C depending on the prevailing weather conditions. The samples were exposed alternatingly to these setups in a 24-hour rotation over five weeks to assess the effect of strong and rapid fluctuations on the stability of the composite. After about one week under the extreme, stress-intensive testing conditions, irreversible deformation, and a local loss of translucency occurred. Further local delamination was observed on the pre-damaged original artwork. Exceeding the dew point temperature, which occurred in our experimental setup and should be avoided, resulted in condensation on the acrylic surface and led to extensive streaks and, in combination with the electrostatic charge, to extreme dust deposits. These findings suggest that cold storage cannot be recommended for face- and back-mounted chromogenic prints.

Abstract

Sechs Probestücke (je 120 × 160 cm) und ein vorgeschädigtes Original (120 × 120 cm), alle chromogen entwickelt und bild- und rückseitig kaschiert, wurden wechselndem Umgebungsklima ausgesetzt. Die Kaltlagerung erfolgte in einer Kühlkammer bei 8 °C mit einer leicht schwankenden relativen Luftfeuchte von durchschnittlich 55 %, die Lagerung bei Raumtemperatur je nach herrschender Witterung zwischen 19 und 27 °C. Um die Auswirkungen schneller und starker Schwankungen auf die Verbundmaterialien zu beurteilen, wurden die Proben den Bedingungen fünf Wochen lang wechselnd in 24-Stunden-Zyklen ausgesetzt. Nach etwa einer Woche unter diesen extrem belastungsintensiven Testbedingungen zeigte sich sowohl eine irreversible Deformation als auch stellenweise farbliche Veränderung des Materials. Weiterhin kam es beim vorgeschädigten Original zu stellenweiser Delamination. Die Überschreitung der Taupunkttemperatur, zu der es während des Experiments kam, die aber grundsätzlich vermieden werden sollte, führte zu Kondensation auf der Acryloberfläche und großflächigen Schlieren. In Kombination mit der resultierenden elektrostatischen Aufladung kam es zu extremer Staubablagerung. Diese Ergebnisse legen nahe, dass eine Kaltlagerung für bild- und rückseitig kaschierte chromogene Farbabzüge nicht empfehlenswert ist.


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Acknowledgements

We would like to thank Lisa Behrens, Lisa Beyer, Esther Hannemann, Philipp Mattausch, Philine Schneider, Miyon Schultka, Sarah Simon, and Irina Vorat – all from the Stuttgart State Academy of Art and Design – for their support in moving the samples. Both companies Grieger GmbH in Düsseldorf and recom ART in Berlin were very accommodating in the production of the samples and therefore ensured that sufficient material could be included in the study. Many thanks to Mario Röhrle, Stuttgart State Academy of Art and Design, for his help with the photographic documentation of the samples.

Notes

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[2] Sylvie Pénichon and Martin Jürgens: “Two Finishing Techniques for Contemporary Photographs”, in: Topics in Photographic Preservation, vol. 9 (2001), pp. 85–96; Jürgens 2001 (as note 1); Murphy 2007 (as note 1); Wei 2008 (as note 1).Suche in Google Scholar

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[9] For the used line light see: <https://www.polytec.com/fileadmin/website/machine-vision/faseroptische-beleuchtung/pdf/datasheet_1-3-2-2-24_lightline_linear_polarizer_kits.pdf> (last accessed November 10, 2022).Suche in Google Scholar

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[12] Fenn and Williams 2018 (as note 6).Suche in Google Scholar

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[14] Jürgens 2001 (as note 1).Suche in Google Scholar

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[16] Franziska Leidig, Nina Quabeck, Ute Henniges and Irene Brückle: “Do’s and Don’ts. Cleaning the Acrylic Surface of Facemounted Photographic Prints”, in: Rundbrief Fotografie, vol. 29 (2022), no. 2, N.F. 114, pp. 29–36.10.1515/rbf-2022-2005Suche in Google Scholar

Published Online: 2022-12-23
Published in Print: 2022-12-16

© 2022 Walter de Gruyter GmbH, Berlin/Boston

Heruntergeladen am 22.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/rbf-2022-3008/html
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