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 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:
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 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:
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 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.
摘要:
A silver halide color photographic material is disclosed, which comprises a support having provided thereon at least one hydrophilic colloidal layer, wherein the hydrophilic colloidal layer contains a novel coupler compound having a high dye forming rate and a high color density represented by general formula (I):(R.sup.1 COCHXCONR.sup.2 R.sup.3)--(CONHSO.sub.2 R.sup.4).sub.n(I)wherein R.sup.1 represents an alkyl group, an aryl group, a heterocyclic group, --NR.sup.5 R.sup.6 or --OR.sup.7 ; R.sup.2 and R.sup.3 each independently represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sup.4 represents an alkyl group, aryl group, heterocyclic group or --NR.sup.8 R.sup.9 ; R.sup.5, R.sup.6, R.sup.8 and R.sup.9 each independently represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sup.7 represents an alkyl group, an aryl group or a heterocyclic group; X represents a group capable of being released as an anion (X.sup.-) when the coupler compound reacts with an oxidation product of an aromatic primary amine developing agent; and n represents an integer of 1 or more, with the proviso that R.sup.1 and R.sup.4, R.sup.2 and R.sup.4, R.sup.3 and R.sup.4, R.sup.2 and R.sup.3, R.sup.5 and R.sup.6, or R.sup.8 and R.sup.9 may be connected to each other to form a ring. The silver halide color photographic material using the novel coupler compound provides a higher sharpness and a higher sensitivity.
摘要翻译:公开了一种卤化银彩色照相材料,其包括其上提供有至少一个亲水性胶体层的载体,其中亲水性胶体层含有由通式(I)表示的高染料形成速率和高色密度的新型成色剂化合物 ):(R1COCHXCONR2R3) - (CONHSO2R4)n(I)其中R1表示烷基,芳基,杂环基,-NR5R6或-OR7; R2和R3各自独立地表示氢原子,烷基,芳基或杂环基; R 4表示烷基,芳基,杂环基或-NR 8 R 9; R5,R6,R8和R9各自独立地表示氢原子,烷基,芳基或杂环基; R 7表示烷基,芳基或杂环基; X表示当成色剂化合物与芳族伯胺显影剂的氧化产物反应时能够作为阴离子(X-)释放的基团; 并且n表示1或更大的整数,条件是R 1和R 4,R 2和R 4,R 3和R 4,R 2和R 3,R 5和R 6或R 8和R 9可彼此连接形成环。 使用新型耦合剂化合物的卤化银彩色照相材料提供更高的清晰度和更高的灵敏度。
摘要:
A color photographic light-sensitive material containing at least one hydroquinone compound substituted with one or two tertiary alkyl groups having 15 carbon atoms, or a precursor thereof. The hydroquinone compounds are particularly useful for preventing color fog or color stain which is observed with color photographic light-sensitive materials.
摘要:
Disclosed is a silver halide color photographic material containing a silver halide emulsion having a high silver iodide content and containing a novel yellow colored cyan coupler. The material has a high sensitivity, a good graininess, an excellent color reproducibility and a sufficient sharpness. The material has at least one light-sensitive emulsion layer on a support and is characterized in that it contains at least one yellow colored cyan coupler, that the emulsion layer contains chemically sensitized silver halide grains, and that the chemically sensitized silver halide grain in the emulsion has a silver iodobromide phase with a silver iodide content of from 15 to 45 mol % as a distinctly layered structure and has a silver iodide content of more than 7 mol % based on the whole grain.