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PROCEDE GOMME BICHROMATEE [1 record]
Record 1 - internal organization data 2004-03-18
Record 1, English
Record 1, Subject field(s)
- Photography
Record 1, Main entry term, English
- gum bichromate process
1, record 1, English, gum%20bichromate%20process
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- gum dichromate process 2, record 1, English, gum%20dichromate%20process
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A contact printing process in which the image is formed in a coating of gum arabic sensitised with dichromate and containing a coloured pigment. 1, record 1, English, - gum%20bichromate%20process
Record number: 1, Textual support number: 1 OBS
After exposure soaking the print face downwards in water dissolves away unhardened gum and associated pigment. 1, record 1, English, - gum%20bichromate%20process
Record 1, Key term(s)
- gum-bichromate process
- gum-dichromate process
Record 1, French
Record 1, Domaine(s)
- Photographie
Record 1, Main entry term, French
- procédé à la gomme bichromatée
1, record 1, French, proc%C3%A9d%C3%A9%20%C3%A0%20la%20gomme%20bichromat%C3%A9e
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Procédé à la gomme bichromatée. Il s'agit d'une simplification du procédé au charbon qui se base sur le fait que la gomme arabique en présence de bichromate de potassium modifie son hydrosolubilité au contact de la lumière. La gomme arabique à laquelle est mélangé un pigment est appliquée sur une feuille de papier qui est ensuite lavée, séchée, placée sous un négatif et exposée à la lumière. Une fois lavée à l'eau chaude, la feuille laisse apparaître une image. Le développement se fait au pinceau. 2, record 1, French, - proc%C3%A9d%C3%A9%20%C3%A0%20la%20gomme%20bichromat%C3%A9e
Record 1, Spanish
Record 1, Textual support, Spanish
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