摘要:
Spectral sensitizing dyes, and silver halide photographic elements incorporating them, which dyes have the formula: ##STR1## wherein: X1 and X2 each independently represent the atoms necessary to complete a 5- or 6-membered heterocyclic nucleus (preferably benzo-condensed), and X1 may be further substituted and X2 substituted or unsubstituted;n is a positive integer from 1 to 4,p and q each independently represents 0 or 1,each L independently represents a substituted or unsubstituted methine group,R1 and R2 each independently represents substituted or unsubstituted aryl or substituted or unsubstituted alkyl,Z1 represents a substituted or unsubstituted pyrrole or furan containing group;W1 is a counterion as needed to balance the charge of the molecule.
摘要:
Dyes according to formulas (I), (II), (III), (IV), and (V) below are described. The dyes are useful as low-staining sensitizing dyes for photographic materials. ##STR1## Z.sub.1, Z.sub.2, Z.sub.3, R.sub.1, R.sub.2, L, D, G, X, n, P, and q are defined herein.
摘要:
This invention relates to a silver halide photographic material comprising at least one silver halide emulsion having associated therewith at least one dye of Formula I ##STR1## wherein: W and W' represent independently an O atom, a S atom, a Se atom or a NR' group wherein R' is a substituted or unsubstituted alkyl group,Z.sub.1 represents a substituted or unsubstituted aromatic group,Z.sub.1 ' independently represents a fused aromatic group or a substituted or unsubstituted aromatic group which may be appended directly to the dye or Z.sub.1 ' represents LZ.sub.2 where L represents a linking group and Z.sub.2 represents a substituted or unsubstituted aromatic group or substituted or unsubstituted alkyl group,L.sub.1, L.sub.2, and L.sub.3 independently represent methine groups bearing a hydrogen, substituted or unsubstituted alkyl group, or a halogen atom,n represents 0 or 1,the benzene rings shown can be further substituted or unsubstituted,R.sub.1 and R.sub.2 are both substituted or unsubstituted alkyl groups,R.sub.3 is hydrogen or a substituted or unsubstituted alkyl group,X is one or more ions as needed to balance the charge on the molecule.
摘要:
This invention provides a silver halide photographic element comprising at least one silver halide emulsion comprising silver halide grains which have associated therewith at least an inner dye layer and an outer dye layer wherein the outer dye layer comprises a dye having at least one substituent that has a positive charge, said photographic element further comprising a cyanine dye of formula (I) or (II) (as described in the specification) that is capable of spectrally sensitizing a silver halide emulsion.
摘要:
A supersensitizing dye combination for silver halide photographic materials is disclosed. The combination is of a first dye according to the formula: ##STR1## Z.sub.1 and Z.sub.2 each independently represents the atoms necessary to complete a substituted or unsubstituted heterocyclic nucleus,each L independently represents a substituted or unsubstituted methine group,n is a positive integer of from 1 to 4,p and q each independently represents 0 or 1,X represents a cation as needed to balance the charge of the molecule,A and A' each independently represents a divalent linking group such that at least one of H--A--SO.sub.3 H and H--A'--SO.sub.3 H would each have a log P value that is more negative than -0.3, anda second dye, having an oxidation potential that is at least about 0.08 volts less positive than the oxidation potential of the first dye and a reduction potential that is equal to or more negative than the reduction potential of the first dye, according to the formula: ##STR2## Z.sub.3 and Z.sub.4 each independently represents the atoms necessary to complete a substituted or unsubstituted heterocyclic nucleus,each L independently represents a substituted or unsubstituted methine group,m is a positive integer of from 1 to 4,r and s each independently represents 0 or 1,X' represents a counterion as needed to balance the charge of the molecule,R.sub.3 and R.sub.4 each independently represents substituted or unsubstituted alkyl or substituted or unsubstituted aryl.
摘要:
Silver halide photographic elements which are capable of high-contrast development and are especially useful in the field of graphic arts comprise surface latent image forming high-chloride silver halide grains and have incorporated therein a hydrazine compound which functions as a nucleator, an amino compound which functions as an incorporated booster, and a benzimidazolocarbocyanine sensitizing dye that provides enhanced photographic sensitivity yet leaves substantially no sensitizing dye stain after rapid access processing.
摘要:
The invention relates to monoazo colorants derived from pyrazolobenzodiazinedioxides of Formula 1: wherein R1 and R2 are hydrogen or any non-metallic group, n is 0-4, R3 is hydrogen, acyl, aryl, alkenyl, alkynyl or alkyl, A represents an aromatic heterocyclic ring or an aromatic group of Formula 2: wherein R6 and R8 are hydrogen, alkyl, sulfonic acid, or 1-4 carbon alkoxy, R7 is any non-metallic group, m is 0-3, and R6 and R7, R7 and R8, or, when m>1, two R7 groups is can be joined to form a fused carbocyclic or heterocyclic aromatic or non-aromatic ring. The invention also relates to an aqueous ink that comprises at least one colorant of Formula 1: wherein A represents an aromatic or heteroaromatic ring, and A can be bonded to other rings that can be aromatic, aliphatic or heterocyclic, and an ink printing method using the colorant-containing ink.
摘要:
This invention comprises a photographic element for accurately recording a scene as an image comprising a support and coated on the support a plurality of hydrophilic colloid layers comprising radiation-sensitive silver halide emulsion layers forming recording layer units for separately recording blue, green and red exposures wherein, (A) the blue recording layer unit comprises at least one blue sensitive emulsion having a peak dyed absorptance of between 435 and 465 nm and an absorptance at 480 nm≧50% of the maximum peak dyed absorptance; or (B) the blue sensitive recording unit comprises a blue sensitive emulsion layer having a peak dyed absorptance of between 435 and 465 nm, and the emulsion exhibits an overall half-peak dyed absorption bandwidth of at least 50 nm.
摘要:
This invention comprises a photographic element for accurately recording a scene as an image comprising a support and coated on the support a plurality of hydrophilic colloid layers comprising radiation-sensitive silver halide emulsion layers forming recording layer units for separately recording blue, green and red exposures wherein, the green recording layer unit comprises at least one green sensitive emulsion having:(i) a peak dyed absorptance of between 520 and 560 nm,(ii) an absorption bandwidth at 50% of the peak dyed absorptance greater than or equal to 50 nm,(iii) an absorption bandwidth at 80% of the peak dyed absorptance greater than or equal to 27 nm,(iv) a ratio of the absorptance at 560 nm to the peak dyed absorptance greater than or equal to 0.40,(v) a ratio of the absorptance at 550 nm to the peak dyed absorptance greater than or equal to 0.60, and(vi) a ratio of the absorptance at 520 nm to the peak dyed absorptance greater than or equal to 0.55.
摘要:
The present invention relates to an aqueous ink comprising at least water, and a colorant of Formula 1 wherein A is any substituted or unsubstituted aromatic or heteroaromatic moiety; R is hydrogen or any non-metallic group; R1 is hydrogen, or any substituted or unsubstituted aryl, alkenyl, alkynyl or alkyl group; R2 and R3 are hydrogen or any non-metallic group, and R2 and R3 can be joined to form a ring that may be aromatic, aliphatic or heterocyclic and may be further substituted; or a colorant of Formula 2: wherein R4 is hydrogen or any non-metallic group; n is an integer of 0-4; and, if n is 2-4, the R4 groups may be the same or different from each other, and a printing method for creating an image on an ink compatible substrate using colorants of Formula 1 or Formula 2.
摘要翻译:本发明涉及至少包含水的水性油墨和式1的着色剂,其中A是任何取代或未取代的芳族或杂芳族部分; R是氢或任何非金属基团; R 1是氢或任何取代或未取代的芳基,烯基,炔基或烷基; R 2和R 3是氢或任何非金属基团,并且R 2和R 3可以连接形成可以是芳族,脂族或杂环并且可以被进一步取代的环; 或式2的着色剂:其中R 4是氢或任何非金属基团; n是0-4的整数; 如果n为2-4,则R4基彼此可以相同或不同,以及使用式1或式2的着色剂在油墨兼容基板上产生图像的印刷方法。