Photographic recording material and process for the production of photographic images

US4636460A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Heinz Meckl · Bensberg, DE
• Helmut Kampfer · Idar-Oberstein, DE
• Helmut Haseler · Leverkusen, DE

Key dates

• Filing date: Jun 11, 1985
• Grant date: Jan 13, 1987
• Expiry date: Jun 11, 2005

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C1/43
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Photographic recording materials which contain a developer substance or a precursor thereof produce better results if in addition they contain a sulphite, a disulphite or a compound capable of releasing sulphite in the photographic material.