摘要:
A silver halide photographic emulsion containing, in combination, supersensitizing amounts of at last two carbocyanine sensitizing dyes as hereinafter defined.
摘要:
A silver halide photographic emulsion spectrally sensitized in the relatively shorter wavelength region ranging from blue to green with a supersensitizing combination of at least one sensitizing dye represented by the general formula (I) ##STR1## WHEREIN Z.sup.1 represents the atoms necessary to form a benzimidazole ring, an oxazole ring, a benzoxazole ring or a naphthoxazole ring; Z.sup.2 represents the atoms necessary to form a thiazole ring, a benzothiazole ring, a naphthothiazole ring, a selenazole ring, a benzoselenazole ring or a naphthoselenazole ring; R.sup.1 and R.sup.2 each represents an aliphatic group containing up to 8 carbon atoms, which may be unsubstituted or substituted, and the carbon chain of which may be interrupted with an oxygen atom or a sulfur atom; R.sup.3 represents an alkyl group containing up to 3 carbon atoms, an aryl group or an aralkyl group; X.sup.1 represents an acid anion; and m represents 1 or 2, wherein m equals 1 when the dye forms an intramolecular salt; and at least one dye selected from the group consisting of a simple merocyanine and a dimethinemerocyanine dye, or with a supersensitizing combination of at least one sensitizing dye represented by the general formula (I) as defined above and at least one sensitizing dye represented by the general formula (II) ##STR2## wherein Z.sup.3 represents the atoms necessary to form a 5- or 6-membered heterocyclic ring; Q represents the atoms necessary to form a rhodanine ring, a thiohydantoin ring or a 2-thioxazolidinedione ring; R.sup.4 represents an aliphatic group containing up to 4 carbon atoms, which may be unsubstituted or substituted and the carbon chain of which may be interrupted by an oxygen atom or a sulfur atom; R.sup.5 represents a hydrogen atom, an alkyl group, an aryl group or an aralkyl group; and n represents 1 or 2.
摘要:
A silver halide photographic emulsion selectively spectrally sensitized, particularly to red light, with a combination of at least one sensitizing dye represented by general formula (I): ##STR1## wherein Z.sup.1 and Z.sup.2 each represents the atoms necessary to form a benzothiazole nucleus or a benzoselenazole nucleus, R.sup.1 and R.sup.2 l each represents an alkyl group or a substituted alkyl group, wherein at least one of R.sup.1 or R.sup.2 should represent a sulfo group-containing substituted alkyl group, a carboxyalkyl group or a hydroxyalkyl group, R.sup.3 represents an alkyl group, X.sub.1 represents an acid anion, and m represents 1 or 2, wherein m equals 1 when the dye forms an intramolecular salt (betaine-like structure); at least one sensitizing dye represented by general formula (II): ##STR2## wherein Z.sup.3 represents a sulfur atom or a selenium atom, Z.sup.4 represents the atoms necessary to form a benzothiazole nucleus, a benzoselenazole nucleus, a naphtho[1,2-d]thiazole nucleus or a naphtho[1,2-d]selenazole nucleus, R.sup.4 and R.sup.5 each represents an alkyl group or a substituted alkyl group, wherein at least one of R.sup.4 or R.sup.5 should be a sulfo group-containing substituted alkyl group, a carboxyalkyl group or a hydroxyalkyl group, R.sup.6 represents an alkyl group, an aryl group, a furyl group or a thienyl group, X.sub.2 represents an acid anion, and n represents 1 or 2, wherein n equals 1 when the dye forms an intramolecular salt (betaine-like structure), and at least one benzimidazolothiacarbocyanine dye, which exhibits increased color reproducibility, high sensitivity and reduced residual coloration.
摘要:
A silver halide photographic emulsion spectrally sensitized with a combination of sensitizing dyes consisting essentially of at least one sensitizing dye represented by the following general formula [I] and at least one sensitizing dye represented by the following general formula [II] in supersensitizing amounts: ##STR1## wherein R.sup.1 and R.sup.2 each is an alkyl group, R.sup.3 is an alkyl group, X.sub.1 is an acidic anion, m is 1 or 2, and m is 1 when the dye forms an intramolecular salt (betaine-like structure). ##STR2## WHEREIN Z.sup.1 is a sulfur atom or a selenium atom, Z.sup.2 is an atomic group necessary to form a benzothiazole ring, a benzoselenazole ring, a naphtho[1,2-d]thiazole ring or a naphtho[1,2-d]selenazole ring, R.sup.4 and R.sup.5 is an alkyl group, R.sup.6 is an alkyl group, a phenyl group, an aralkyl group, a furyl group or a thienyl group, X.sub.2 is an acidic anion, n is 1 or 2, and n is 1 when the dye forms an intramolecular salt (betaine-like structure).
摘要:
A silver halide photographic emulsion spectrally sensitized with a sensitizing combination of at least one sensitizing dye represented by General formula (I), at least one sensitizing dye represented by General formula (II) and at least one sensitizing dye represented by General formula (III): ##STR1## wherein Z.sup.1 and Z.sup.2 each is the atoms necessary to form a benzothiazole nucleus or a benzoselenazole nucleus, R.sup.1 and R.sup.2 each is an alkyl group or a substituted alkyl group, wherein at least one of R.sup.1 and R.sup.2 is a substituted alkyl group having a sulfo group, R.sup.3 is an alkyl group, X.sub.1 is an acid anion and m is 1 or 2 and when the dye forms an intermolecular salt (betaine like structure), m is 1; ##STR2## wherein Z.sup.3 is a sulfur atom or a selenium atom, Z.sup.4 is the atoms necessary to form a benzothiazole nucleus, a benzoselenazole nucleus, a naphtho[1,2-d]thiazole nucleus or a naphtho[1,2-d]selenazole nucleus, R.sup.4 and R.sup.5 each is an alkyl group or a substituted alkyl group, wherein at least one of R.sup.4 and R.sup.5 is a substituted alkyl group having a sulfo group, R.sup.6 is an alkyl group, an aryl group, a furyl group or a thienyl group, X.sub.2 is an acid anion and n is 1 or 2, and n is 1 when the dye forms an intermolecular salt (betaine like structure); wherein Z.sup.5 is the atomic group necessary to complete a naphthothiazole nucleus, Z.sup.6 is the atomic group necessary to complete a benzimidazole nucleus, R.sup.7 and R.sup.8 each is an alkyl group or a substituted alkyl group, where at least one of R.sup.7 and R.sup.8 is a carboxyalkyl group or a substituted alkyl group having a sulfo group, X.sub.3 is an acid anion, and p is 1 or 2, and p is 1 when the dye forms an intermolecular salt.
摘要:
A supersensitized silver halide photographic emulsion containing a cyan coupler and, in combination, at least one of the sensitizing dyes represented by the following general formula (I) and at least one of the sensitizing dyes represented by the general formula (II): ##STR1## WHEREIN W.sup.1 and W.sup.2 each represents a hydrogen atom, an alkyl group, an alkoxyl group, a halogen atom, an alkoxycarbonyl group, an acyl group or an aryl group; R.sup.1 and R.sup.2 each represents a sulfoalkyl group; R.sup.3 represents an alkyl group or an allyl group; X.sub.1 represents an acid anion; and m is 1 or 2, m being 1 in the case that the dye forms an inner salt of a betaine-like structure; ##STR2## wherein Z.sup.1 and Z.sup.2 each represents an atomic group required for forming a benzothiazole nucleus, a benzoselenazole nucleus, a .beta.-naphthothiazole nucleus or a .beta.-naphthoselenazole nucleus; R.sup.4 and R.sup.5 each represents an aliphatic group and at least one of R.sup.4 and R.sup.5 represents a carboxyalkyl group or a sulfoalkyl group; R.sup.6 represents an alkyl group, an aryl group, a thienyl group or a furyl group; X.sub.2 represents an acid anion; and n is 1 or 2, n being 1 in the case that the dye forms an inner salt of a betaine-like structure.
摘要:
A silver halide photographic emulsion containing, in combination, supersensitizing amounts of at least one sensitizing dye of the following general formula (I) ##EQU1## WHEREIN Z.sub.1 and Z.sub.2 each represents an atomic group required to form a quinoline ring; R.sub.1 and R.sub.2 each represents an aliphatic group, with at least one of R.sub.1 and R.sub.2 being a hydroxyalkyl group, an alkyl group containing a carboxyl group or an alkyl group containing a sulfo group; X.sub.1 is an acid anion; and m is 1 or 2, and when m is 1 the dye forms an intramolecular salt and at least one sensitizing dye of the following general formula (II) ##EQU2## WHEREIN Z.sub.3 represents an atomic group required to form a benzimidazole ring, a benzoxazole ring or a .beta.-naphthoxazole ring; Z.sub.4 represents an atomic group required to form a benzothiazole ring, a benzoselenazole ring, a .beta.-naphthothiazole ring or a .beta.-naphthoselenazole ring; R.sub.3 and R.sub.4 each represents an aliphatic group with at least one of R.sub.3 and R.sub.4 being an alkyl group containing a carboxyl group, a hydroxyalkyl group or an alkyl group containing a sulfo group; R.sub.5 represents a hydrogen atom or an alkyl group; X.sub.2 is an acid anion group; and n is 1 or 2, and when n is 1 the dye forms an intramolecular salt.
摘要翻译:含有以下通式(I)Z1Z2 R1-NC-CH = C-N-R2(I)+(X2))的至少一种敏化染料的超敏化剂组合的卤化银照相乳剂 n-1,其中Z1和Z2各自表示形成喹啉环所需的原子团; R1和R2各自表示脂族基团,其中R1和R2中的至少一个是羟烷基,含羧基的烷基或含有磺基的烷基; X1是酸性阴离子; m为1或2,当m为1时,染料形成分子内盐和至少一种以下通式(II)的增感染料Z3R5Z4 | ANGLE C-CH = C-CH = C ANGLE(II)+ NN | R3R4(X2 - ))n-1其中Z3表示形成苯并咪唑环,苯并恶唑环或β-萘恶唑环所需的原子团; Z4表示形成苯并噻唑环,苯并硒唑环,β-萘噻唑环或β-萘并噻唑环所需的原子团; R 3和R 4各自表示脂族基团,其中R 3和R 4中的至少一个是含有羧基,羟基烷基或含有磺基的烷基的烷基; R5表示氢原子或烷基; X2是酸性阴离子基团; n为1或2,当n为1时,染料形成分子内盐。
摘要:
A silver halide photographic emulsion containing, in combination, supersensitizing amounts of at least two carbocyanine dyes having structures hereinafter defined.
摘要:
A silver halide photographic emulsion containing at least one sensitizing dye represented by the formula (I) ##EQU1## wherein Z.sub.1 represents a group of atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus, a benzoselenazole nucleus, a naphthothiazole nucleus or a naphthoselenazole nucleus; Z.sub.2 represents a group of atoms necessary to complete a naphthothiazole nucleus or a naphthoselenazole nucleus; and R.sub.1 and R.sub.2, which may be the same or different, each represents an aliphatic group and at least one of R.sub.1 and R.sub.2 is an aliphatic group containing a carboxyl group or a sulfo group; and at least one sensitizing dye represented by the formula (II) ##EQU2## wherein Z.sub.3 and Z.sub.4 which may be the same or different, each represents a group of atoms necessary to complete a thiazole nucleus, a benzothiazole nucleus or a benzoselenazole nucleus; and R.sub.3 and R.sub.4, which may be the same or different, each represents an aliphatic group and at least one of R.sub.3 and R.sub.4 is an aliphatic group containing a carboxyl group or a sulfo group.