Fundamentals of Photograph Conservation: A Study Guide

Hendriks, Klaus B.

doi:10.2307/3179642

Cited by 8 publications

(3 citation statements)

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“…Albumen prints exhibit characteristic yellowing, noticeable in the highlights 35 . The discoloration of albumen prints is mainly due to the reactions initiated by the sugar content of the egg white; the reactions initiated by the sulfur content of the egg white; the tendency of proteins to bind silver; and the susceptibility of proteins to react with light 36 .…”

Section: Photo Conservation Practices In Egypt: Low Budget Optionsmentioning

confidence: 99%

Photograph Conservation Practices in Egypt Applied on Francis Amin’s Photo Collection: Low Budget Options

Ali¹,

Abdallah²,

Henin³

2023

مجلة کلیة الآثار . جامعة القاهرة

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Photographic collections form a fundamental part of Egypt's cultural heritage for their documentary and artistic value. Photography reached Egypt in 1839, the very same year it was invented. Many pioneer photographers were attracted to Egypt's beauty and the mystery of its ancient treasures. Today, these images are held by archives, libraries, and museums all across Egypt, from Cairo to Nubia. Damaged photographs present a challenge in the conservation field. Since photo conservation is a relatively new field in Egypt, the work of a photo conservator is not clear to conservation institutions and collection holders. In this paper, the authors have selected different photographs suffering from various damage forms with the aim of sharing the current photograph conservation practices in Egypt with other professionals and scholars through discussing what we do, what we do not do, and why. The authors believe that this would assist in developing criteria and better strategies for the preservation of our photographic heritage. When handling damaged photographs, each case is unique and has specific conservation needs.

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Section: Photo Conservation Practices In Egypt: Low Budget Optionsmentioning

confidence: 99%

Photograph Conservation Practices in Egypt Applied on Francis Amin’s Photo Collection: Low Budget Options

Ali¹,

Abdallah²,

Henin³

2023

مجلة کلیة الآثار . جامعة القاهرة

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“…Both methods are commonly used by conservators in spite of a number of limitations. In particular, the sensitive gelatine layer is swelled by the water when cotton swabs soaked in solvents are gently rolled over the surface of the print [21], while the applied mechanical force may cause irreparably damage. Washing of prints is considered an intrusive treatment that can only be performed when the object is in a good condition and free of water-sensitive additives such as inks, paints, glues.…”

Section: Introductionmentioning

confidence: 99%

“…In silver gelatine printing, the commonly used solvents are demineralized water, ethanol (EtOH) and "wetting agents" such as Kodak ™ Photo-flo. In some cases, other solvents will be used exceptionally, such as acetone, but because of the very limited and specific use of such solvents, they are not included in this study [1,2,21]. As illustrated in Table 1, for all solvent-based methods three solvents commonly used in the conservation of photographic material were tested: water, EtOH and Photo-flo.…”

Section: Introductionmentioning

confidence: 99%

Towards a novel strategy for soot removal from water-soluble materials: the synergetic effect of hydrogels and cyclomethicone on gelatine emulsion-based photographs

et al. 2023

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Gels are a popular cleaning method for paper conservators and a lot of research has been done concerning gel cleaning of paper objects over the last 15 years. Despite the close interconnection between the conservation fields of paper and photographic material, research on using gels for cleaning photographs is very scarce. However, gels can provide an excellent cleaning method for photographic material. Cleaning silver gelatine prints with aqueous solvents is very complex due to the hydrophilic properties and fragility of the gelatine layer which makes mechanical cleaning difficult. The properties of gels ensure better control over the flow and evaporation of the solvent, facilitating the cleaning process. This study is the first insight into the viability of using gellan gum gel and polyvinyl acetate-borax (PVAc-borax) gel to clean contaminants from the surface of silver gelatine photographs. It is based on self-made samples that were artificially aged and contaminated with soot. Water, ethanol (EtOH), and Kodak Photo-flo were studied as solvents to remove the soot from the silver gelatine-based prints. These solvents were loaded into the aforementioned gels and applied to the samples in two different methods. These gel cleaning methods were subsequently compared with traditional cleaning methods. In addition, the usage of cyclomethicone D4 as a protective mask for the gelatine layer was studied. Measuring methods used to evaluate the cleaning were visual comparison, microscopic observation, and densitometry. ATR-FTIR measurements were also conducted to investigate potential side-effects of the cleaning methods on the prints, such as unwanted chemical transformations or the presence of gel residues after the treatments. Most of the gel cleaning methods within this study proved to be inadequate, with the exception of the gellan gum gel loaded with 30% EtOH. It was used as a granulated gel applied mechanically on a print saturated with cyclomethicone (octamethylcyclotetrasiloxane D4). Cyclomethicone proved to be a very effective protective barrier for the water-sensitive gelatine layer with minimal reduction in cleaning effectiveness.

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Identification and Treatment for a Damaged Hand-Coloured Photograph

Donaldson¹

1997

AICCM Bulletin

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Fundamentals of Photograph Conservation: A Study Guide

Cited by 8 publications

References 0 publications

Photograph Conservation Practices in Egypt Applied on Francis Amin’s Photo Collection: Low Budget Options

Photograph Conservation Practices in Egypt Applied on Francis Amin’s Photo Collection: Low Budget Options

Towards a novel strategy for soot removal from water-soluble materials: the synergetic effect of hydrogels and cyclomethicone on gelatine emulsion-based photographs

Identification and Treatment for a Damaged Hand-Coloured Photograph

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