Silver halide emulsion fog inhibited with quaternary ammonium,triazole and tetrazaindene compounds

Abstract

Abstract A LIGHT-SENSITIVE SILVER HALIDE PHOTOGRAPHIC MATERIAL, ESPECIALLY SUITED FOR QUICK DEVELOPMENT, CONTAINS AS ANTIFOGGANTS AT LEAST ONE OF THE COMPOUNDS REPRESENTED BY THE GENERAL FORMULAS I, II, III AND IV R2-N(-R3)(-R1)(-X)(-A) I OR A-N(-X)<(-Z-) II (R2-)(R3-)N(-R1)(-X)-B-N(-X)(-R1)(-R2)-R3 III (-Z-)>N(-X)-B-N(-X)<(-Z-) IV WHEREIN R1 AND R2 ARE INDIVIDUALLY AN ALKYL OR HYDROXYALKYL GROUP HAVING 1 TO 18 CARBON ATOMS; R3 IS AN ALKYL OR HYDROXYALKYL GROUP HAVING 1 TO 18 CARBON ATOMS, OR AN ARYL OR ARAKLYL GROUP; Z IS A NON-METALLIC ATOMIC GROUP NECESSARY FOR FORMATION OF HETERO RING BY BONDING TO THE NITROGEN ATOM; A IS AN ALKYL, ALKENYL, ARYL OR ARALKYL GROUP; B IS -CH2-1,4-PHENYLENE-CH2- (WHERE N IS A POSITIVE INTEGER OF 1 TO 10); AND X IS AN ANION, COMBINED WITH 4-HYDROXY-6-METHYL-1,3,3A,7-TETRAZAINDENE IN AT LEAST ONE LAYER OF THE PHOTOGRAPHIC MATERIAL. A COMPOUND OF THE GENERAL FORMULA WHERE Y IS A HYDROGEN ATOM, A NITRO GROUP, A HALOGEN ATOM OR A METHYL GROUP, IS FURTHER INCORPORATED AS THIRD COMPONENT. Y-1H-BENZOTRIAZOLE

Inventors

• 👤 Teruhide Haga
• 👤 Hisashi Yamaguchi
• 👤 Yotaro Hirao

Bibliographic Details