Claims
- 1. A silver halide photosensitive material having at least one silver halide emulsion layer on a support, said silver halide emulsion layer containing at least one magenta-forming coupler of the 1H-pyrazolo(3,2-c)-s-triazole type which is substituted by a tertiary alkyl group at the 3-position, by a primary alkyl group, a secondary alkyl group, an aryl group, or a heterocyclic ring group at the 6-position; and by a releasable group other than a hydrogen atom at the 7-position, said tertiary alkyl group at the 3-position having a carbon atom directly coupled to the 1H-pyrazolo(3,2-c)-s-triazole nucleus, said carbon atom having no hydrogen atom attached thereto.
- 2. The silver halide color photo-sensitive material as claimed in claim 1, wherein said magenta-forming coupler of 1H-pyrazolo[3,2-c]-S-triazole type is a compound represented by the following formula;
- wherein R.sub.1 represents a tertiary alkyl group; R.sub.2 represents an primary alkyl group, secondary alkyl group an aryl group or a heterocyclic ring group; and X represents a split-off group other than hydrogen, which is capable ofs plitting off through a coupling reaction with the oxidation products of an aromatic amine color developing agent.
- 3. The silver halide color photo-sensitive material as claimed in claim 1, wherein said silver halide emulsion layers are those spectrally sensitized in blue, green and red, respectively, and the green-sensitive layer contains said magenta-forming coupler of 1H-pyrazolo3,2-c]-S-triazole type in an amount of from 0.005 mole to 2 mole per mole of the silver halide used.
- 4. The silver halide color photo-sensitive material as claimed in claim 3, wherein said green-sensitive layer contains said magenta-forming coupler of 1H-pyrazolo[3,2-c-S-triazole type in an amount of from 0.03 mole to 0.5 mole per mole of the silver halide used.
- 5. The silver halide color photo-sensitive material as claimed in claim 3, wherein said blue-sensitive layer contains at least one yellow-forming coupler selected from the group consisting of those of benzoylacetanilide type and of pivaloylacetanilide type.
- 6. The silver halide color photo-sensitive material as claimed in claim 3, wherein said red-sensitive layer contains at least one cyan-forming coupler selected from the group consisting of those of phenol type and of naphthol type.
- 7. The silver halide color photo-sensitive material as claimed in claim 3 , wherein said blue-sensitive layer contains at least one of the yellow-forming couplers claimed in claim 5, and said red-sensitive layer contains at least one of the cyan-forming couplers claimed in claim 6.
- 8. The silver halide color photo-sensitive material as claimed in claim 2, wherein X represents a halogen atom.
- 9. The silver halide color photo-sensitive material as claimed in claim 2, said tertiary alkyl group represented by R.sub.1 has 4 to 25 carbon atoms.
- 10. The silver halide color photo-sensitive material as claimed in claim 2, said primary alkyl group represented by R.sub.2 has 1 to 15 carbon atoms.
Priority Claims (1)
Number |
Date |
Country |
Kind |
59-243015 |
Nov 1984 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 186,662, filed Spr. 20, 1988, now abandoned, which is a continuation of application Ser. No. 040,715, filed Apr. 21, 1988, now abandoned, and which is a continuation of Ser. No. 798,116, filed Nov. 14, 1985, now abandoned.
US Referenced Citations (29)
Foreign Referenced Citations (11)
Number |
Date |
Country |
073636 |
Sep 1983 |
EPX |
143570 |
May 1985 |
EPX |
177765 |
Apr 1986 |
EPX |
178789 |
Apr 1986 |
EPX |
1810464 |
Nov 1967 |
DEX |
3339201 |
May 1984 |
DEX |
1247493 |
Sep 1971 |
GBX |
1252418 |
Nov 1971 |
GBX |
1334515 |
Oct 1973 |
GBX |
2132783 |
Jul 1984 |
GBX |
2135788 |
Sep 1984 |
GBX |
Non-Patent Literature Citations (3)
Entry |
Research Disclosure 20525, May 1981. |
Research Disclosure 20919, Sep. 1981. |
Research Disclosure 12443, Aug. 1974. |
Continuations (3)
|
Number |
Date |
Country |
Parent |
186662 |
Apr 1988 |
|
Parent |
40715 |
Apr 1987 |
|
Parent |
798116 |
Nov 1985 |
|