摘要:
A silver halide photographic emulsion comprising a silver halide emulsion, at least one ascorbic acid compound, a bisaminostilbene compound substituted by a pyrimidine derivative, and at least one sensitizing dye as described herein, exhibits an increased inhibition of desensitization due to the use of a sensitizing dye and an increase in the spectral sensitivity of the photographic emulsion.
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 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 spectrally sensitized silver halide photographic emulsion comprising a silver halide emulsion containing a combination of at least one sensitizing dye represented by the following general formula (I): ##STR1## at least one sensitizing dye represented by the following general formula (II): ##STR2## and at least one organic heterocyclic compound represented by the following general formula (III) or (IV): ##STR3## wherein Z.sup.1 and Z.sup.2, which may be the same or different, each represents a group of atoms necessary for forming a thiazole nucleus or a selenazole nucleus; Z.sup.3 has the same meaning as Z.sup.1 and Z.sup.2 ; Z.sup.4 represents a group of atoms necessary for forming an imidazole nucleus or an oxazole nucleus; Z.sup.5 represents a group of atoms necessary for forming an imidazole nucleus; R.sup.1, R.sup.2, R.sup.4, R.sup.5 and R.sup.7, which may be the same or different, each represents an alkyl group, with at least one of R.sup.1, R.sup.2, R.sup.4 and R.sup.5 being an alkyl group substituted with a carboxy group, a hydroxy group or a sulfo group; R.sup.3 and R.sup.6, which may be the same or different, each represents a lower alkyl group, an aryl group or a hydrogen atom; R.sup.8 represents a hydrogen atom or an alkylene group necessary for forming a ring through a combination with R.sup.7 ; R.sup.9 represents an aryl group (including a monocyclic aryl group and a bicyclic aryl group); X.sub.1.sup.-, X.sub.2.sup.- and X.sub.3.sup.- each represents an acid anion; m, n and p each represents 1 or 2, but when m, n or p is 1, the dye forms an intramolecular salt.The photographic emulsion exhibits a high sensitivity with a reduced fog and stain, and a good stability with the lapse of time during and after production, and further an improved latent image stability with the lapse of time of from image-wise exposure to development.
摘要翻译:包含含有由以下通式(I)表示的至少一种敏化染料的组合的卤化银乳剂的光谱增感卤化银照相乳剂:(I)至少一种由以下通式(II)表示的增感染料 )(II)和由以下通式(III)或(IV)表示的至少一种有机杂环化合物:其中Z 1和Z 2可以是 相同或不同,每个表示形成噻唑核或硒唑核所需的一组原子; Z3与Z1和Z2具有相同的含义; Z4表示形成咪唑核或恶唑核所需的一组原子; Z5表示形成咪唑核所需的一组原子; R 1,R 2,R 4,R 5和R 7可以相同或不同,各自表示烷基,R 1,R 2,R 4和R 5中的至少一个为被羧基,羟基或 磺基; R 3和R 6可以相同或不同,各自表示低级烷基,芳基或氢原子; R8表示通过与R 7的组合形成环所需的氢原子或亚烷基; R9表示芳基(包括单环芳基和双环芳基); X 1,X 2和X 3各自表示酸性阴离子; m,n和p各自表示1或2,但当m,n或p为1时,染料形成分子内盐。
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.
摘要:
A silver halide photographic emulsion containing, in supersensitizing amounts, the combination of at least one compound represented by the following general formula (I): ##STR1## wherein Z.sub.1 represents the atoms necessary for forming a benzene ring or a naphthalene ring; W.sub.1 represents a sulfur atom or a selenium atom; Y represents an oxygen atom or a sulfur atom; R.sub.1 represents an alkyl group or an aryl group; and R.sub.2 represents a lower alkyl group having 1 to 6 carbon atoms in the alkyl moiety or an aryl group;At least one carbocyanine dye represented by the following general formula (II): ##STR2## wherein Z.sub.2 represents the atoms necessary for forming a thiazole ring, a selenazole ring, an oxazole ring, an imidazole ring or a pyrroline ring; Z.sub.3 represents the atoms necessary for forming an oxazole ring or an imidazole ring; R.sub.4 and R.sub.5, which may be the same or different, each represents an alkyl group; R.sub.6 represents a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms in the alkyl moiety; X.sub.a.sup..crclbar. represents an acid anion; and p represents 0 or 1 and, when an inner salt is formed, p represents 0; andAt least one dye represented by the following general formula (III): ##STR3## wherein Z.sub.4 and Z.sub.5, which may be the same or different, each represents the atoms necessary for forming a thiazole ring or a selenazole ring; R.sub.7 and R.sub.8, which may be the same or different, each represents an alkyl group; R.sub.9 represents a hydrogen atom, a lower alkyl group having 1 to 6 carbon atoms in the alkyl moiety or an aryl group; X.sub.b.sup..crclbar. represents an acid anion; and q represents 0 or 1 and, when an inner salt is formed, q represents 0.
摘要翻译:(I)表示的至少一种化合物的组合:(I)其中Z1表示形成苯环或萘环所需的原子的卤化银感光乳剂,其以超敏化剂量含有至少一种化合物的组合。 W1表示硫原子或硒原子; Y表示氧原子或硫原子; R1表示烷基或芳基; 并且R 2表示在烷基部分或芳基中具有1至6个碳原子的低级烷基; (II)表示的至少一种碳青霉烷衍生物:其中Z2表示形成噻唑环所需的原子,硒唑环,恶唑环,咪唑环或吡咯啉环; Z 3表示形成恶唑环或咪唑环所必需的原子; R 4和R 5可以相同或不同,各自表示烷基; R6表示烷基部分中的氢原子或碳原子数1〜6的低级烷基; Xa( - )表示酸性阴离子; p表示0或1,当形成内盐时,p表示0; (III)表示的至少一种染色剂:其中Z4和Z5可以相同或不同,分别表示形成噻唑环或硒唑环所需的原子; R 7和R 8可以相同或不同,各自表示烷基; R9表示氢原子,烷基部分或芳基中具有1〜6个碳原子的低级烷基; Xb( - )表示酸性阴离子; q表示0或1,当形成内盐时,q表示0。
摘要:
A silver halide photographic emulsion which contains in combination a supersensitizing amount of at least one pseudocyanine sensitizing dye and at least one oxacarbocyanine sensitizing dye.
摘要:
A water-soluble methine compound represented by the following general formula (I): ##STR1## wherein Z.sub.1 and Z.sub.2, which may be the same or different, each represents a non-metallic atomic group required for forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring; R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group; Q.sub.1 and Q.sub.2 each represents an atomic group required, in combination, for forming a 4-thiazolidinone ring, a 5-thiazolidinone ring, a 4-imidazolidinone ring, a 4-oxazolidinone ring, a 5-oxazolidinone ring, a 5-imidazolidinone ring or a 4-dithiolanone ring; L.sub.1, L.sub.2, L.sub.3, L.sub.4 and L.sub.5, which may be the same or different, each represents a methine group; R represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; m represents 1 or 2; i and h each represents 0 or 1; l represents 1 or 2; and j and k each represents 0, 1, 2 or 3.A photographic silver halide emulsion containing said methine compound added in the form of an aqueous solution is also disclosed.
摘要:
A silver halide photographic emulsion including a spectrally sensitizing dye and at least one compound represented by general formula [I] or general formula [II] are disclosed. ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.4 ', R.sub.5, R.sub.5 ', R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.12 represent hydrogen atoms or univalent organic residual groups.