Washing Monobathed Film

Paper presented at a symposium on ‘Photographic Processing’ organized by the Science Committee of the Royal Photographic Society, on 22-24 September 1971 at Brighton.

Abstract

Monobath processed films take 40 seconds washing, in tap water at 12°C, to reach the level of sodium thiosulphate required for archival permanence. It is found, however, that a 60 second wash at this low temperature is necessary to avoid staining due to residual hydroquinone.

Notes

Paper presented at a symposium on ‘Photographic Processing’ organized by the Science Committee of the Royal Photographic Society, on 22-24 September 1971 at Brighton.