Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SILVER HALIDE PHOTOSENSITIVE MATERIAL
Document Type and Number:
Japanese Patent JPS6156347
Kind Code:
A
Abstract:

PURPOSE: To improve a photosensitivity and a contrast and to prevent a color stain apt to generate in developing by using an anti-foggant or a compd. releasing its precursor in an amount proportional to that of a developing silver in developing.

CONSTITUTION: The material provides at least one of silver halide emulsion layers on a base material and contains a color stain inhibitor represented by the formula and the anti-foggant or the compd. releasing its precursor in the amount proportional to that of the developing silver in developing. In the formula, R1 and R2 are each a hydrogen atom, a halogen atom and a carboxyl group or a sulfone group capable of a forming a salt; R1 together with R2 may be composed of a carbon right. One of X1WX4 groups is a hydroxyl group, remainder two groups are each hydroxyl group or a sulfonamide group. further remainder one group is an atom or a group of R1 or R2. Total carbon numbers of R1, R2, and X1WX4 amount to ≥10. Therefore, the effects of improving the photosensitivity, the contrast and preventing the color stain are obtd.


Inventors:
OOKI NOBUTAKA
OBAYASHI KEIJI
Application Number:
JP17887684A
Publication Date:
March 22, 1986
Filing Date:
August 28, 1984
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G03C7/26; G03C7/392; (IPC1-7): G03C7/26
Attorney, Agent or Firm:
Youichi Ishii