Claims
- 1. A silver halide photographic emulsion containing at least one sensitizing dye represented by the following general formula (I): ##STR29## in which Z represents an atomic group necessary for forming a benzoxazole nucleus or a naphthoxazole nucleus; R.sub.1 represents a member selected from the group consisting of an unsubstituted alkyl group; an alkyl group substituted with a hydroxy group, an alkoxy group, an acyloxy group, a carboxy group, an alkoxycarbonyl group, a sulfo group, or an aryl group; or an allyl group; R.sub.2 represents an alkyl group, an allyl group or an aryl group; R.sub.3 represents an N-(N,N-dialkylaminoalkyl)carbamoylalkyl group, an N-(N,N-trialkylammoniumalkyl)carbamoylalkyl group or an N,N,N-trialkylammoniumalkyl group, with R.sub.2 being a phenyl group where R.sub.3 is an alkoxycarbonylalkyl group; X represents an acid anion; and n represents 0 or 1.
- 2. The silver halide photographic emulsion of claim 1, wherein R.sub.3 represents an N-(N,N-dialkylaminoalkyl)-carbamoylalkyl group.
- 3. The silver halide photographic emulsion of claim 1, wherein R.sub.3 represents an N-(N,N,N-trialkylammoniumalkyl)carbamoylalkyl group.
- 4. The silver halide photographic emulsion of claim 1, wherein R.sub.3 represents an N,N,N-trialkylammoniumalkyl group.
- 5. The silver halide photographic emulsion of claim 1, wherein Z is halogen-, alkyl-, alkoxy-, hydroxy-, trifluoromethyl-, alkoxycarbonyl-, acetyl-, or phenyl- substituted benzoxazole, and an .alpha.-naphthoxazole, a .beta., .beta.-naphthoxazole or a .beta.-naphthoxazole nucleus.
- 6. The silver halide photographic emulsion of claim 1, wherein Z is 5-fluorobenzoxazole, 5-chlorobenzoxazole, 5-chlorobenzoxazole, 5-bromobenzoxazole, 5-methylbenzoxazole, 5-methoxybenzoxazole, 5-hydroxybenzoxazole, 5-trifluoromethylbenzoxazole, 5-methoxycarbonylbenzoxazole, 5-acetylbenzoxazole, 5-phenylbenzoxazole, 6-methylbenzoxazole, 6-methoxybenzoxazole, 6-hydroxybenzoxazole, 5,6-dimethylbenzoxazole, or 5-chloro-6-methylbenzoxazole.
- 7. The silver halide photographic emulsion of claim 1, wherein said silver halide is silver chloride, silver bromide, silver iodide, silver chlorobromide, silver bromoiodide, silver chloroiodide, or silver chlorobromoiodide.
- 8. The silver halide photographic emulsion of claim 1, wherein the grains of said silver halide have an average diameter ranging from about 0.04 to 2 microns.
- 9. The silver halide photographic emulsion of claim 1, wherein said silver halide emulsion contains at least one of a chemical sensitizer, an optical sensitizer, a hardener, an antifoggant, a stabilizer, a coating aid, and a color coupler.
- 10. The silver halide photographic emulsion of claim 1, wherein said at least one sensitizing dye has the formula: ##STR30##
- 11. The silver halide photographic emulsion of claim 1, wherein said at least one sensitizing dye has the formula: ##STR31##
- 12. The silver halide photographic emulsion of claim 1, wherein R.sub.3 is an N-(3-(N,N-dimethylamino)propyl)carbamoylmethyl, N-(2-(N,N-diethylamino)ethyl)carbamoylmethyl, N-(3-(morpholino)-propyl)-carbamoylmethyl, N-(3-piperidino)propyl)carbamoylmethyl), N-(3-(N,N,N-triethylammonium)propyl)carbamoylmethyl, N-(3-methylmorpholino)-propyl)-carbamoylmethyl, N-(3-(N-methylpiperidino)propyl)carbamoylmethyl), or an N,N,N-trialkylammoniumalkyl group.
- 13. The silver halide photographic emulsion of claim 1, wherein said at least one sensitizing dye is used in an amount of from about 5 .times. 10.sup.-3 mol to 1 .times. 10.sup.-6 mol of said at least one sensitizing dye per 1 mol of silver.
- 14. A silver halide photographic element comprising a support having thereon a layer of the silver halide photographic emulsion of claim 1.
Priority Claims (1)
Number |
Date |
Country |
Kind |
48-47467 |
Apr 1973 |
JA |
|
Parent Case Info
This is a continuation of application Ser. No. 464,094, filed Apr. 25, 1974, now abandoned.
US Referenced Citations (6)
Continuations (1)
|
Number |
Date |
Country |
Parent |
464094 |
Apr 1974 |
|