Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL
Document Type and Number:
Japanese Patent JP2000122250
Kind Code:
A
Abstract:

To obtain a silver halide photographic sensitive material having excellent color developing property during developing, excellent color reproducibility and excellent picture quality by incorporating a specified dye-forming coupler into one layer of silver halide emulsion layers.

One layer of silver halide emulsion layers contains a dye-forming coupler expressed by the formula. In the formula, each of R1, R2, R3 and R4 is hydrogen atom or a substituent having <250 formula weight, but when R4 is not hydrogen atom, R3 is -NH-Y, wherein Y is hydrogen atom, an alkyl group, aryl group, heterocyclic group, acyl group or the like, X is a group having ≥250 formula weight which can be released by the reaction with the oxidizing part of a color developing agent, and when each of R1 and R3 is phenyl group, a substituent at the ortho or para position on the phenyl group is not -OH group nor -NHSO2Z, wherein Z is an alkyl group, aryl group or heterocyclic group. Thus, the obtd. photographic sensitive material has excellent color developing property and excellent light fastness.


Inventors:
NARUSE HIDEAKI
SUZUKI MAKOTO
TAKEUCHI KIYOSHI
HARADA TORU
ISHIWATA YASUHIRO
Application Number:
JP30786198A
Publication Date:
April 28, 2000
Filing Date:
October 14, 1998
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G03C8/40; (IPC1-7): G03C8/40
Attorney, Agent or Firm:
Toshizo Iida