摘要:
A color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing therein a coupler represented by the following general formula (I):Q-B (I)wherein Q represents a coupler residue capable of forming a magenta color image upon the coupling reaction with an oxidation product of a developing agent; and B represents a group containing an unsubstituted or substituted methylenedioxybenzene group.The magenta coupler containing a methylenedioxybenzene group is useful in preventing the formation of yellow stain due to light irradiation in unexposed areas of a color photographic light-sensitive material after color development processing. Color images formed from the coupler are resistant to fading even if the color images obtained after color development processing are irradiated with light.
摘要:
Disclosed are an azo dye having the following formula (1), an ink-jet ink comprising the aforesaid azo dye, an ink-jet recording method using the aforesaid ink-jet ink, and a thermal transfer recording material comprising the aforesaid azo dye: wherein Z represents an atomic group which forms, together with a nitrogen atom, a five-, six- or seven-membered ring, R1 represents a hydrogen atom, an oxy radical, an aliphatic group, an aliphatic oxy group, an acyl group, an aliphatic oxycarbonyl group, an aryloxycarbonyl group or an acyloxy group, R2, R3, R4 and R5, which may be the same or different, each represents an alkyl group, or R2 and R3 and/or R4 and R5 may be combined with each other to form a ring, and Dye represents a dye moiety group necessary for forming an azo dye.
摘要:
A method for improving light fastness of an image, which comprises releasing or forming an image forming dye or a precursor thereof corresponding or counter-corresponding to silver development and allowing an image formed by transferring said image forming dye or precursor thereof to coexist with a compound represented by general formula (I) in an image forming material ##STR1## The symbols in formula (I) are defined in the description. Also disclosed is an image forming material for use in the method.
摘要:
A polymer compound is provided comprising at least one of the monomer units represented by the following formula (A) or formula (B): wherein R11 and R21 each represents a hydrogen atom, an oxy radical group, an alkyl group, an alkenyl group, an alkoxy group or an acyl group; R12 and R22 each represents a hydrogen atom or an alkyl group; Y1 and Y2 each represents ←CONR4—, ←COO— or ←CH(OH)CH2O—; X− represents a chlorine ion, a bromine ion, an iodine ion or a hydroxy ion; Z represents an atom group which together with the nitrogen atom forms a 5- to 7-membered heteroring; R13 and R23 each represents a hydrogen atom, a methyl group, an ethyl group or a halogen atom; R4 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and ← represents a bond to the main chain side of the polymer.
摘要翻译:提供了包含由下式(A)或式(B)表示的单体单元中的至少一种的高分子化合物:其中R 11和R 21各自表示氢原子,氧自由基,烷基,烯基, 烷氧基或酰基; R 12和R 22各自表示氢原子或烷基; Y1和Y2各自表示←CONR4-,←COO-或←CH(OH)CH2O-; X-表示氯离子,溴离子,碘离子或羟基离子; Z表示与氮原子一起形成5-至7-元杂环的原子基团; R 13和R 23各自表示氢原子,甲基,乙基或卤素原子; R4表示氢原子或碳原子数1〜4的烷基。 ←表示与聚合物的主链侧的键。
摘要:
A novel 4-acylamino-2,2,6,6-tetramethylpiperidine derivatives and antioxidants comprising the same. The 4-acylamino-2,2,6,6-tetramethylpiperidine derivatives are represented by formula (A): wherein R1 represents a hydrogen atom, a hydroxyl group, an oxyradical group, an aliphatic group, an acyl group, an aliphatic oxy group or an acyloxy group; and R2 represents an aliphatic group having at least 3 carbon atoms and at least two hydroxyl groups.
摘要:
A pyrazolylazophenol dye exhibiting excellent spectral characteristics and having high fastness to light, heat, air or chemicals, and a color light-sensitive material containing an image forming compound comprising the dye, which releases a magenta dye exhibiting excellent spectral characteristics and having high fastness to light, heat, air or chemicals.
摘要:
A color photographic silver halide light-sensitive material is described, characterized by containing at least one of the compounds represented by the general formula (I) and their precursors. ##STR1## wherein R represents ##STR2## (wherein R.sub.1 and R.sub.2 are each a hydrogen atom or an alkyl group and may combine with R.sub.3 to form a ring having 5 to 10 carbon atoms, provided that R.sub.1 and R.sub.2 are not hydrogen atoms at the same time, R.sub.3 is a substituted or unsubstituted aryl group, and n is an integer of 1 to 4), and R' has 1 to 20 carbon atoms and represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or a substituent defined by R as defined above). This light-sensitive material provides color images which are stabilized, i.e., freed of fading and the discoloration of the white ground.
摘要:
A silver halide color photographic material comprising a support having thereon at least a silver halide emulsion layer is described, wherein the photographic material contains a cyan dye-forming coupler represented by formula (I) ##STR1## wherein R represents an unsubstituted or substituted alkyl, aryl, or heterocylic ring group; B represents --O-- or --NR.sub.1 --, wherein R.sub.1 represents a hydrogen atom or an unsubstituted or substituted alkyl or aryl group; Z represents an unsubstituted or substituted aryl group or an alkyl or aralkyl group substituted by a carboxy group or a hydroxy group; A represents a substituted aryl group, or a substituted or unsubstituted heterocyclic ring group; and m represents 0 or 1, provided that when m is 0 the substituent is not an alkoxy group, a halogen atom or a cyano group.
摘要:
A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, the color photographic light-sensitive material containing a cyan dye forming coupler represented by the following general formula (I): ##STR1## wherein R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a heterocyclic group; X represents a hydrogen atom or a group capable of being released upon an oxidative coupling reaction with a developing agent; R.sup.1 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group.The cyan dye forming coupler represented by the general formula (I) has a good solubility in an organic solvent having a high boiling point and a high dye forming rate even in a color developing solution which does not contain benzyl alcohol and provides a cyan color image having a high maximum density and excellent fastness to light. Further, a decrease in optical density of the cyan color image is not substantially observed even when the color photographic light-sensitive material is processed with a bleaching solution which has a weak oxidation power or a bleaching solution which is exhausted.
摘要:
A dye compound excellent in transfer property and color fastness against light, a yellow dye excellent in light absorption property, a yellow dye compound for thermal transfer dye donating material excellent in solubility and a dye compound which can be synthesized with ease from readily-available source materials are provided. A dye compound of the present invention is expressed by the general formula (1): or a salt thereof, wherein R1, R2, R3 and R4 independently represent a hydrogen atom or a substituent.