Claims
- 1. A color diffusion transfer photographic material which comprises a support having thereon one or more light-sensitive silver halide emulsion layers combined with a reducible dye providing compound represented by the following general formula (I) and an electron donor, said reducible dye providing compound releasing a diffusing dye when reduced, wherein at least one of the silver halide emulsion layers contains a silver halide emulsion obtained by:
- chemically sensitizing the silver halide emulsion in the presence of a first sensitizing dye which is adsorbed into the silver halide emulsion, and
- treating the silver halide emulsion with a solid adsorbent consisting of a porous organic synthetic resin having no ion exchange group to desorb substantially all of the first sensitizing dye:
- PWR-(Time).sub.t -Dye (I)
- wherein PWR represents a group which releases -(Time).sub.t -Dye when reduced; Time is a group which releases Dye through subsequent reactions after -(Time).sub.t -Dye is released from PWR; t represents an integer of 0 or 1; and Dye represents a dye or a precursor thereof.
- 2. A color diffusion transfer photographic material as in claim 1, wherein the silver halide emulsion obtained by:
- chemically sensitizing the silver halide emulsion in the presence of a first sensitizing dye which is adsorbed into the silver halide emulsion, and
- treating the silver halide emulsion with a solid adsorbent to desorb substantially all of the first sensitizing dye, is further:
- treated with a second sensitizing dye, which may the same or different as the first sensitizing dye, such that the second sensitizing dye is adsorbed by the silver halide emulsion.
- 3. A color diffusion transfer photographic material as in claim 2, wherein the first sensitizing dye is different from the second sensitizing dye.
- 4. A color diffusion transfer photographic material as in claim 3, wherein the first sensitizing dye is a compound represented by formula (D-1), and the second sensitizing dye is a compound represented by formula (D-2): ##STR36## wherein Z 1 and Z.sub.2 may be the same or different and each represents a non-metallic atomic group required for forming a benzene ring or a naphthalene ring; R.sub.1 and R.sub.3 may be the same or different and each represents a substituted or unsubstituted alkyl group; R.sub.2 represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group; represents an anion; and m represents 0 or 1 and when m=0, the compound forms an inner salt; ##STR37## wherein X.sub.2 and X.sub.3 independently represent a sulfur atom or a selenium atom; Z.sub.3 and Z.sub.4 each represents a nonmetallic atomic group required for forming a benzene ring or a naphthalene ring; R.sub.4 represents a hydrogen atom, an alkyl group having not more than 6 carbon atoms, an aralkyl group having not more than 12 carbon atoms or a phenyl group; R.sub.5 and R.sub.6 each represents an alkyl group having not more than 10 carbon atoms or an alkyl group having not more than 10 carbon atoms substituted by one or more of a sulfo group, a hydroxyl group, a carboxyl group, a carbamoyl group, a sulfophenyl group, a carboxyphenyl group, an alkoxy group, a phenyl group or a halogen atom, and at least one of R.sub.5 and R.sub.6 is a group having a sulfo group or a carboxyl group.
- 5. A color diffusion transfer photographic material as in claim 4, wherein the sensitizing dye of formula (D-2) is a sensitizing dye of formula (D-3): ##STR38## wherein X.sub.5 and X.sub.6 may be the same or different and each represents a sulfur atom or a selenium atom; R.sub.7 represents an ethyl group, a propyl group, a butyl group or a phenethyl group; R.sub.8 and R.sub.9 each represents a sulfoalkyl group having 2 to 4 carbon atoms, a carboxyalkyl group having 2 to 5 carbon atoms, a hydroxyalkyl group having 2 to 6 carbon atoms, an unsubstituted carbamoyl group-substituted alkyl group having 2 to 5 carbon atoms or a lower alkyl group having not more than 6 carbon atoms; at least one of R.sub.8 and R.sub.9 is a group having a sulfo group or a carboxyl group; R.sup.10 and R.sub.11 independently represent a hydrogen atom, a chlorine atom, a bromine atom, a lower alkyl group having 1 to 7 carbon atoms, a lower alkoxy group having 1 to 6 carbon atoms, a carboxyl group, a hydroxyl group, an alkoxycarbonyl group having 2 to 5 carbon atoms, an acylamino group in which the acyl moiety has 2 to 5 carbon atoms or a phenyl group; and R.sub.12 and R.sub.13 independently represent a hydrogen atom, a chlorine atom, a bromine atom, a lower alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxyl group or an acylamino group in which the acyl moiety has 2 to 5 carbon atoms.
Priority Claims (1)
Number |
Date |
Country |
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3-297691 |
Oct 1991 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 07/961,388 filed Oct. 15, 1992, now abandoned.
US Referenced Citations (5)
Continuations (1)
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Number |
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961388 |
Oct 1992 |
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