Document Type and Number:
Japanese Patent JPS5164927
Kind Code:
A
Abstract:
In a color photographic material wherein by color development there are produced either non-diffusing image dyes or diffusing image dyes (the latter being transferred to an image-receiving layer) the color development is controlled by means of non-diffusing thioether compounds which on color development release a diffusing mercapto compound but do not themselves form a dye. The mercapto compound inhibits the development of the silver halide and the thioether compound has the formula R1=hydrogen or alkyl with 1-3 carbon atoms R2=alkyl with up to 22 carbon atoms the group -S-Y is split off during color development and forms a mercaptane, e.g. 5-mercapto-1-phenyltetrazole, which inhibits the development.
Inventors:
HAINRITSUHI OODENUEERUDERU
HANSU FUETSUTERU
BARUTERU PYUUSHERU
ERUBIN RANTSU
HANSU FUETSUTERU
BARUTERU PYUUSHERU
ERUBIN RANTSU
Application Number:
JP12144375A
Publication Date:
June 04, 1976
Filing Date:
October 09, 1975
Export Citation:
Assignee:
AGFA GEVAERT AG
International Classes:
G03C7/26; C07D257/04; G03C7/30; G03C7/305; G03C8/00; (IPC1-7): G03C7/20; G03C7/26