Konishiroku Photo Industry Co., Ltd.

Masahiko Taguchi

Katsuo Mogaki

Syun Takada

Takashi Sasaki

Shoji Kikuchi

Takashi Uchida

Shinichi Nakamura

Shui Sato

Hidehiko Ishikawa

Haruhiko Sato

Mikio Sato

A color photographic material comprising a support and at least one layer thereon containing at least one compound of formula [I]: Formula [I] ##STR1## wherein R.sub.1 R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each are defined in the specification and claims of this application. The compound of formula [I] is incorporated in a color photographic material to prevent the discoloration and fading-in-color of the color photographic material.

Color photographic material

A color photographic material comprising a support and at least one layer thereon containing at least one compound of formula [I]: Formula [I] ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each are defined in the specification and claims of this application. The compound of formula [I] is incorporated in a color photographic material to prevent the discoloration and fading-in-color of the color photographic material.

The present invention is directed to a color photographic material which is characterized as containing a compound represented by the following formula I in combination with a compound represented by the following formula II ##STR1## wherein R represents an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a heterocyclic ring; R.sub.1, R.sub.2 and R.sub.3 individually represent hydrogen, halogen, an alkyl group, an alkylthio group, an alkoxy group, an aryl group, an aryloxy group, an arylthio group, an acyl group, an acylamino group, a diacylamino group, an acyloxy group, a sulfonamido group, an alkylamino group, a cycloalkyl group or an alkoxycarbonyl group; and Z represents an atomic group or groups necessary for forming a chroman or coumaran ring; provided that R and R.sub.1 can cooperatively be cyclized to form a chroman or cumaran ring. ##STR2## wherein A.sub.1, A.sub.2, A.sub.3 and A.sub.4 are individually alkyl having 1-18 carbon atoms, the total number of carbon atoms of A.sub.1, A.sub.2, A.sub.3 and A.sub.4 being not more than 32; and X is a simple bond, oxygen, sulfur, sulfonyl or ##STR3## in which A.sub.5 is hydrogen or alkyl having 1-10 carbon atoms and n is an integer of 1-3.

Color photographic materials containing dye-fading inhibitors

A color photosensitive material is disclosed which contains a support and a silver halide photosensitive layer wherein the photosensitive material also contains a combination of a member selected from one group of compounds with a member selected from another group of compounds.

Color photographic materials containing dye fading inhibitors

A silver halide photosensitive element using specifically defined yellow, magenta and cyan color couplers in the individual respectively blue, green and red-sensitive layers.

Growing community of inventors

Odawara, Japan

Masahiko Taguchi