Dye diffusion transfer material with graft polymer binding layer

US4056397A · kind A · utility

Assignee

• AGFA-Gervaert AG · DE

Inventors

• Werner Krafft · Leverkusen, DE
• Erich Wolff · Solingen, DE
• Wulf von Bonin · Leverkusen, DE

Key dates

• Filing date: Nov 5, 1975
• Grant date: Nov 1, 1977
• Expiry date: Nov 5, 1995

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C8/52
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In a photographic monosheet material for the dye diffusion transfer process a temporary bond is adjusted between a first layer and a second layer by placing between said layers another layer of a graft polymer which is obtained by grafting a monomer containing double bonds capable of radical polymerization onto a hydrophilic linear basis polymer. The two layers are firmly bonded to each other but are easily separated, when the processing liquid is forced between them.