摘要:
A silver halide photographic emulsion is disclosed. The emulsion includes a silver halide emulsion which has dispersed therein at least three types of sensitizing dyes. The emulsion includes at least one dye represented by the formula (I), at least one dye represented by the formula (II) and at least one dye represented by the formula (III). Each of the structural formulae and their substituents are defined within the specification. The resulting silver halide photographic emulsion shows a small decrease in the inherent sensitivity of the silver halide due to the sensitizing dye used.
摘要:
A presensitized plate from which a lithographic printing plate is to be prepared, comprising a support having provided thereon a non-silver light-sensitive layer comprising an O-quinonediazide compound and a silver halide light-sensitive layer in this order, said silver halide light-sensitive layer containing a specific sensitizing dye. The presensitized plate is specifically high in sensitivity to a light of the wavelength in the range of 480 nm to 520 nm, and therefore it can be handled even under the lighter safe light.
摘要:
Silver halide color light-sensitive materials which contain a compound having a repeating unit represented by general formula (I) and a compound represented by general formula (II): ##STR1## wherein R.sub.1 represents --OR, --SR or wherein R and R' each represents a hydrogen atom, or alkyl group, a hydroxyalkyl group, a sulfoalkyl group (or a salt thereof), a carboxyalkyl group (for a salt thereof), an aralkyl group, an aryl group, or a cycloalkyl group, or R and R' may form an alkylene group or an --O-- containing alkylene ring together; R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom or an alkyl group; Y.sub.1, Y.sub.2, Y.sub.3 and Y.sub.4 each represents a polymethylene group, an arylene group, or a cycloalkylene group, Z represents --O--, --SO.sub.2 -- or --CH.sub.2 --; and l and m each represents 0 or 1; ##STR2## wherein R.sub.6 represents a hydrogen atom, an alkyl group; R.sub.7 and R.sub.8, which may be identical or different, each represents an alkyl group, or an aryl group, but at least one of R.sub.7 and R.sub.8 is an alkyl group having an acid substituent; D and E, which may be identical or different, each represents a hydrogen atom, a halogen atom, an alkyl group, a hydroxyl grup, an alkoxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a cyano group, a carboxyl group, an sulfo group, a trifluoromethyl group, a phenyl group or a benzene condensed ring, but at least one of D and E represents a hydroxyl group, an alkoxy group, an alkoxycarbonyl group or a carboxyl group; Z.sub.1 represents an anion; and n represents 1 or 2, but n represents 1 when the dye forms an inner salt; the light-sensitive materials improve sensitization processing aptitude.
摘要:
A silver halide photographic emulsion having a high spectral-sensitivity in a red-color wavelength range, especially within a wavelength range of from 600 nm to 690 nm, is disclosed, which contains one or more sensitizing dyes represented by formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represents an alkyl group, a substituted alkyl group, or an alkenyl group;V.sub.1, V.sub.2, V.sub.3, and V.sub.4 each represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, a carboxyl group, an alkoxysulfonyl group, a cyano group, or a trifluoromethyl group;Q represents an alkyl group or an aralkyl group;X.sup..crclbar. represents an anion; andm is 1 or 2, provided that when the dye forms an internal salt, m is 1.
摘要:
A silver halide photographic light-sensitive material is disclosed. The material is comprised of a support base having provided thereon a hydrophilic colloid layer and a silver halide emulsion layer. The silver halide emulsion layer contains tubular silver halide grains having a diameter at least 3 times their thickness and also contains a compound represented by general formula (I) or (II): ##STR1## the substituents are defined within the specification. The material obtains the advantages of utilizing tabular silver halide grains while having a reduced dependents of its photographic properties on development processing conditions which normally effect materials containing tabular silver halide grains.
摘要:
A silver halide photographic emulsion is disclosed which contains at least one of benzimidazolocarbocyanine dyes represented by the general formula (I) or (II): ##STR1## wherein a represents an integer of 1 to 8, R.sub.1, R.sub.2 and which may be identical with or different from one another, represent each --CH.sub.2 (CF.sub.2).sub.b H or a substituted or unsubstituted alkyl group, but at least one of R.sub.1, R.sub.2 and R.sub.3 contains an acid group-containing alkyl group, wherein b, which may be identical with or different from a, represents an integer of 1 to 8, l represents 0 or an integer of 1 to 8, and m represents 0 or an integer of 1 to 8, but l+m>0; R.sub.4, R.sub.5 and R.sub.6, which may be identical or different from one another, represent each --(CH.sub.2).sub.j (CF.sub.2).sub.k F or a substituted or unsubstituted alkyl group, but at least one of R.sub.4, R.sub.5 and R.sub.6 represents an acid group (for example, sulfo group or carboxyl group, etc.)-containing alkyl group; j represents 0 or an integer of 1 to 8; and k represents 0 or an integer of 1 to 8, but j+k>0; V.sub.1, V.sub.2, V.sub.3, V.sub.4, V.sub.5, V.sub.6, V.sub.7 and V.sub.8, which may be identical with or different from one another, represent each a hydrogen atom, a halogen atom, a substituted alkyl group, an unsubstituted alkyl group, an alkoxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a cyano group or a trifluoromethyl group; X represents an anion; and n represents 1 or 2 but represents 1 when the dye forms an inner salt.The emulsion has good stability to the passage of time, in which an increase of fog under a high temperature or under a high temperature and a high humidity is controlled and reduction of sensitivity with the passage of time is minimized.
摘要:
A light-sensitive silver halide photographic emulsion characterized by containing a combination of at least one sensitizing dye represented by formula (I) and at least one sensitizing dye represented by formula (II). ##STR1## A silver halide color photographic light-sensitive element comprising a support having thereon at least one light-sensitive emulsion layer comprising a sensitizing dye represented by formula (I) and a sensitizing dye represented by formula (II) is also described.
摘要:
A silver halide photographic emulsion comprising at least one spectral sensitizing dye having the following general formula (I):Dye--J.sup.1 --CONH--J.sup.2 --NHNHG--R (I)wherein Dye represents a dye residue capable of becoming a spectral sensitizing dye; J.sup.1 represents a substituted or unsubstituted alkylene group, a substituted or unsubstituted arylene group, a substituted or unsubstituted aralkylene group, or a substituted or unsubstituted alkarylene group; J.sup.2 represents a substituted or unsubstituted arylene group; R represents hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryloxy group; and G represents a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or a substituted or unsubstituted iminomethylene group.
摘要:
A photoresponsive material containing a dye compound having a cyclodextrin or its derivative as a substituent. The photoresponsive material exhibits increased light absorptivity by increasing the amount of spectral sensitizer, the dye compound. The photoresponsive material is useful as a photographic emulsion and the like.
摘要:
A silver halide photographic emulsion containing at least one compound represented by following formula (I):Dye--L--Hyd (I)wherein Dye represents a chromophore-containing dye residue shown by following formula (II); Hyd represents a hydrazine residue one of the two nitrogen atoms of which is substituted by a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or an alkilydene group and L represents a divalent linkage group of bonding Dye and Hyd; ##STR1## wherein R and R.sub.1, which may be the same or different, each represents an alkyl group; Z and Z.sub.1, which may be the same or different, each represents an atomic group necessary for forming a 5- or 6-membered heterocyclic ring; Q represents an atomic group necessary for forming a 5- or 6-membered carbon ring or a 5- or 6-membered heterocyclic ring; A represents an oxygen atom or a sulfur atom; and n, d, and m each represents 0 or 1.