摘要:
A method for the formation of a color photographic image comprising exposure and development of a photographic element, said photographic element comprising at least one silver halide emulsion layer, a compound capable of releasing a diffusible azo dye compound during development, and at least one mordant layer arranged on a support. The color image formation is effected by the reaction of multivalent metallic ions with an azo dye compound having the formula: ##STR1## wherein G.sup.1 is an alkoxy or a thioalkoxy metallic chelating group; G.sup.2 is a metallic chelating group in which an oxygen atom is involved in the chelate formation; and Z.sup.1 and Z.sup.2 each is a group of atoms necessary to form an aromatic carbocyclic ring or a heterocyclic ring. The azo dye compound and the metallic ions form a metal complex by coordination of the azo group and the G.sup.1 and G.sup.2 groups of the azo dye compound with the multivalent metallic ions.
摘要:
A photographic light-sensitive element for a color diffusion transfer process which has a silver halide emulsion layer and also employs a nondiffusible cyan dye releasing compound. The compound is capable of releasing a diffusible metallic complex which forms an azo dye under alkaline conditions as a function of the development of the silver halide in said silver halide emulsion layer.
摘要:
A photographic light-sensitive element which comprises on a support a light-sensitive silver halide emulsion layer and having associated therewith a non-diffusible compound capable of, under alkaline condition, releasing a diffusible azo dye, said compound having the formula (1), ##STR1## wherein X represents a group of atoms necessary to complete a naphthalene ring or a benzene ring, G.sup.1 represents a hydroxy group, a salt thereof or a hydrolyzable precursor thereof, G.sup.2 represents a carboxy group, a salt thereof or a hydrolyzable precursor thereof, a hydroxy group, a salt thereof or a hydrolyzable precursor thereof, R.sup.1 is a hydrogen atom, an alkyl group or an aryl group, R.sup.2 is a hydrogen atom, an alkyl group or an aryl group, R.sup.2 represents a hydrogen atom, a halogen atom, an alkyl group, a carboxy group, a carbamoyl group or an amino group, each of which group may be substituted, R.sup.3 represents a hydrogen atom, a carboxy group, a carbamoyl group, a cyano group or a trifluoromethyl group, J represents a divalent linking group, Y represents a ballasted carrier moiety capable of releasing said diffusible dye under alkaline condition as a function of development of silver halide, m represents an integer of 1 to 3 and n represents zero or an positive integer not larger than m.
摘要:
Photoreceptor for electrophotography comprising a conductive support and an overlaying photosensitive layer thereon, said photosensitive layer containing at least one azo compound of Formula I or II ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3 and Ar.sub.4 each is an aromatic hydrocarbon ring radical or an aromatic heterocyclic ring radical; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each is an electron attractive group or hydrogen provided that at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is an electron attractive group; and A is ##STR2## wherein X is a hydroxy group or a group represented by the formula: ##STR3## wherein R.sub.6 and R.sub.7 each is hydrogen or an alkyl group, and R.sub.8 is an alkyl or aryl group; Y is halogen, an alkyl or alkoxy group, a carboxy group, a sulfo group, a carbamoyl or sulfamoyl group; Z is an atomic group necessary for making an aromatic hydrocarbon ring or an aromatic heterocyclic ring; R.sub.5 is hydrogen, an amino or carbamoyl group, a carboxy group or an ester group thereof; Ar.sub.5 is an aryl group; n is an integer of 1, 2 or 3; and m is an integer of 0, 1 or 2.
摘要:
An electrophotograhic photoreceptor that has great ability to generate carriers and which has high sensitivity but low residual potential is disclosed. This photoreceptor is characterized by having formed on an electrically conductive support a light-sensitive layer containing a bisazo compound of the following formula: ##STR1## (wherein R.sub.1 is a cyano group, a chlorine atom or a bromine atom; X.sub.1 is a halogen atom, an alkyl group, an alkoxy group or a cyano group; X.sub.2 is a hydrogen atom, a halogen atom, an alkyl atom or an alkoxy group; A is ##STR2## wherein Y is a substituted or unsubstituted carbamoyl group or a substituted or unsubstituted sulfamoyl group; Z is an atomic group necessary for forming a substituted or unsubstituted aromatic hydrocarbon ring or a substituted or unsubstituted heteroaromatic ring; R.sub.2 is a hydrogen atom, a substituted or unsubstituted amino group, a substituted or unsubstituted carbamoyl group, a carboxy group or an ester group thereof; and A' is a substituted or unsubstituted aryl group).
摘要翻译:公开了具有很高的灵敏度但低残留电位的产生载体的能力的电子照相感光体。 该感光体的特征在于在导电载体上形成含有下式的双偶氮化合物的光敏层:其中R1是氰基,氯原子或溴原子; X1是卤素原子 ,烷基,烷氧基或氰基; X 2为氢原子,卤素原子,烷基或烷氧基; A为取代或未取代的氨基甲酰基或取代或未取代的氨基甲酰基 氨磺酰基; Z是形成取代或未取代的芳族烃环或取代或未取代的杂芳环所需的原子团; R 2是氢原子,取代或未取代的氨基,取代或未取代的氨基甲酰基,羧基或 其酯基; A'为取代或未取代的芳基)。
摘要:
There is disclosed an electrophotosensitive receptor which comprises a conductive support and an electrophotosensitive layer which comprises a carrier transporting material and a specified trisazo compound wherein the azo compound is applied as a coating solution containing a solvent or as a liquid dispersion mixture containing a dispersion medium. Alternatively, the electrophotosensitive receptor comprises a conductive support and an electrophotosensitive layer which comprises said azo compound wherein the azo compound is applied as a coating solution containing a solvent and a binder or as a liquid dispersion medium containing a dispersion medium and a binder.
摘要:
A light-sensitive photographic element comprising a support and at least one light-sensitive silver halide emulsion layer coated thereon having associated therewith a magenta image dye-providing compound which releases a magenta dye or a precursor thereof corresponding to the imagewise exposure of said emulsion layer, said magenta dye-providing compound being a compound represented by formula [I]: ##STR1## wherein Car represents a carrier moiety which can be oxidized under alkaline conditions to release a diffusible dye or a precursor thereof from said compound;R.sup.1 and R.sup.2, which may be the same or different, independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms (provided that the total sum of carbon atoms in R.sup.1 and R.sup.2 does not exceed 5), or R.sup.1 and R.sup.2 may form, together with the nitrogen atom, ##STR2## X represents a hydroxyl group, a salt thereof or a group, which can be converted into a hydroxyl group by hydrolysis, having the following formula: ##STR3## in which R.sup.3 represents an alkyl or haloalkyl group having 1 to 18 carbon atoms or a phenyl group which may be substituted; Y represents a ##STR4## group in which R.sup.4 and R.sup.5, which may be the same or different, independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group (provided that the total sum of carbon atoms in R.sup.4 and R.sup.5 does not exceed 6);Z represents a hydrogen atom, a chlorine atom, a methyl group or a methoxy group;l is 1 or 2 provided that when l is 2 each Z may be the same or different;m is 0 or 1;andJ represents a bivalent linking group having the formula --R.sup.6 --(O).sub.n --R.sub.p.sup.7 -- in which R.sup.6 and R.sup.7, which may be the same or different, independently represent an alkylene group having 1 to 8 carbon atoms, a phenylene group which may be substituted; n represents 0 or 1; p represents 0 or 1 provided that p is 1 when n is 1 and 1 or 0 when n is 0 (provided that, when p is 1, the total sum of carbon atoms in R.sup.6 and R.sup.7 does not exceed 13).
摘要:
A light-sensitive photographic element comprising a support and at least one light-sensitive silver halide emulsion layer coated thereon having associated therewith a cyan image dye-providing compound which releases a cyan dye or a precursor thereof corresponding to the imagewise exposure of said emulsion layer, said cyan image dye-providing compound being a compound represented by formula [I] or [II]: ##STR1## wherein Car, R.sup.1, R.sup.2, X, Y.sup.1, Y.sup.2, m, J.sup.1 and J.sup.2 are defined in the specification and claims.
摘要:
2-Sulfamoyl-5-sulfamido-1-naphthols represented by the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be the same or different and each represent a hydrogen atom, a straight-chain alkyl group, a branched alkyl group or a cycloalkyl group; or R.sup.1 and R.sup.2 can be connected with each other, together with the nitrogen atom, to form a ##STR2##
摘要:
A photographic element containing a nondiffusible metal complex capable of releasing a diffusible photographically useful group. The complex contains at least one poly-dentate ligand which contains the photographically useful group. The complex may be activated when reduced under alkaline conditions to release the photographically useful group.