Global Patent Index - EP 0616255 B1

EP 0616255 B1 19990915 - Low silver color photographic element and process for dye image formation

Title (en)

Low silver color photographic element and process for dye image formation

Title (de)

Farbphotographisches Element mit niedrigem Silbergehalt und Verfahren zur Farbbildherstellung

Title (fr)

Elément photographique en couleurs à basse teneur d'argent et procédé de formation d'une image en couleurs

Publication

EP 0616255 B1 19990915 (EN)

Application

EP 94200669 A 19940316

Priority

  • GB 9305578 A 19930318
  • US 18817194 A 19940126

Abstract (en)

[origin: EP0616255A1] A process is disclosed of producing a dye image in an imagewise exposed color photographic element by developing a silver halide emulsion to produce silver imagewise and employing the developed silver to catalyze the reaction of an oxidizing agent and a reducing agent that are inert to oxidation-reduction interaction in the absence of developed silver, and reacting oxidized reducing agent with a dye image providing compound to form the dye image. In the color photographic element total silver is limited and the emulsion contains a high chloride ä100ü tabular grain population.

IPC 1-7

G03C 7/26; G03C 1/035; G03C 1/005; G03C 7/30

IPC 8 full level

G03C 1/005 (2006.01); G03C 7/30 (2006.01)

CPC (source: EP)

G03C 1/0053 (2013.01); G03C 7/3017 (2013.01); G03C 7/3022 (2013.01); G03C 2001/03594 (2013.01); G03C 2001/0478 (2013.01); G03C 2200/01 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0616255 A1 19940921; EP 0616255 B1 19990915; DE 69420605 D1 19991021; DE 69420605 T2 20000406

DOCDB simple family (application)

EP 94200669 A 19940316; DE 69420605 T 19940316