Processing of photographic silver halide material

US4059446A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Edwin Hendrik Hazenbosch · Mechelen, BE
• Antoine R. Van Rossen · Brustem, BE
• Roland F. Beels · Aartselaar, BE
• Marcel Frans Aelterman · Mortsel, BE

Key dates

• Filing date: Apr 12, 1976
• Grant date: Nov 22, 1977
• Expiry date: Apr 12, 1996

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C5/3056
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Sludge formation is reduced in the fixing and washing station of an automatic processing apparatus for rapid processing exposed photographic elements, by addition to the fixing and/or washing medium of a compound of the formula: EQU R(OCH.sub.2 CH.sub.2).sub.n OH wherein n is at least 12 and R is an aliphatic group of 6 to 24 carbon atoms or an alkylaryl group.