Photographic silver halide emulsion

Abstract

Abstract wherein D represents a divalent aromatic group combining with each other the pyromidinylamino groups or triazinylamino groups shown in the above formula, R3, R4, R5 and R6 each represents a hydrogen atom, a hydroxyl group, an alkoxyl group, a halogen atom, an amino group, an alkyl amino group or a substituted alkylamino group, such as, a hydroxyalkylamino group, a sulfoalkylamino group, a cycloalkylamino group, an arylamino group and a heterocyclic amino residual group, and W represents CH- or N-. wherein Z1 represents the nonmetallic atoms necessary for forming 4-quinoline nucleus, Z2 represents the nonmetallic atoms necessary for forming a 5or 6-membered ring, R1 and R2 represent substituted or nonsubstituted alkyl groups, X is an acid anion group, M IS 1 OR 2, AND P IS 1 OR 2, SAID DYE FORMING AN INTRAMOLECULAR SALT WHEN P IS 1, AND TOGETHER WITH A COMPOUND HAVING TRIAZINE NUCLEI OR PYRIMIDINE NUCLEI REPRESENTED BY THE FOLLOWING GENERAL FORMULA II: A photographic silver halide emulsion having incorporated therein the sensitizing dye represented by the following general formula I:

Inventors

• 👤 Keisuke Shiba
• 👤 Masanao Hinata
• 👤 Reiichi Ohi
• 👤 Hiroshi Misu

Bibliographic Details