摘要:
A lithographic silver halide photographic light-sensitive material is described which scarcely exhibits colored fringe and black pepper, forms halftone dots of good quality whether a fresh or an exhausted developer is used for processing thereof, and which scarcely shows a drop in sensitivity even when a developer contaminated by a fixing solution is used; said material comprises a support and at least one lithographic silver halide emulsion layer, and containing in said emulsion layer or in another hydrophilic colliodal layer which does not contain silver halide emulsion at least one compound represented by formula (I) ##STR1## wherein M represents hydrogen, an alkali metal ion or --NH.sub.4.sup..sym. ; X represents --SO.sub.2 NHR', --COOM', --SO.sub.3 M', --OH or --CONH.sub.2, wherein M' represents hydrogen, an alkali metal ion or --NH.sub.4.sup..sym. ; and R' represents hydrogen or an alkyl group having from 1 to 3 carbon atoms; R represents hydrogen or an alkyl group having from 1 to 3 carbon atoms; and n represents 1 or 2.
摘要:
A method of spectrally sensitizing a photographic light-sensitive emulsion where a water-soluble solution, prepared by dissolving a methine dye having at least one water-soluble group in water in the presence of a "Red Shift Compound", as hereinafter defined, is added to a photographic light-sensitive emulsion to provide a photographic light-sensitive emulsion spectrally sensitized with increased sensitizing efficiency and with reduced fog. The disadvantages caused by the use of high organic solvent contents are avoided and photographic light-sensitive emulsions suitable for high-speed coating are obtained.
摘要:
A thermally developable light-sensitive material comprising a support having therein or in at least one layer thereon (a) an organic silver salt, (b) a photocatalyst, and (c) a reducing agent, and additionally (d) at least one 1,2,4-triazole compound.
摘要:
A method of spectrally sensitizing a photographic light-sensitive emulsion where a water-soluble solution, prepared by dissolving a methine dye having at least one water-soluble group in water in the presence of a "Red Shift Compound", as hereinafter defined, is added to a photographic light-sensitive emulsion to provide a photographic light-sensitive emulsion spectrally sensitized with increased sensitizing efficiency and with reduced fog. The disadvantages caused by the use of high organic solvent contents are avoided and photographic light-sensitive emulsions suitable for high-speed coating are obtained.
摘要:
A method for improving the light fastness of a magenta color image in a silver halide color photograph which comprises incorporating into a layer containing a magenta color image, which is formed upon reaction of a magenta coupler and an oxidation product of an aromatic primary amine color developing agent, at least one light fastness improving phenolic compound and at least one synergistic light fastness improving agent selected from a sulfide or sulfoxide compound represented by the following general formula (V):x--b--y (v)wherein B represents --S-- or --SO--; X and Y, which may be the same or different, each represents --(CH.sub.2).sub.n --R.sub.1, ##STR1## or ##STR2## and R.sub.1 represents --COOR.sub.3, ##STR3## --OR.sub.6, --O--COR.sub.6, --NHSO.sub.2 R.sub.6, ##STR4## --NHCOR.sub.6, a cyano group, an aryl group or a hydroxy group; R.sub.2 represents an alkyl group of 1 to 30 carbon atoms, an aryl group, an aralkyl group, a hydroxy group, a cyano group or --COOR.sub.3 ; R.sub.3 R.sub.4, R.sub.5 and R.sub.6 each represents a hydrogen atom, an alkyl group of 1 to 30 carbon atoms, an aryl group, or an aralkyl group, with the proviso that R.sub.6 is not a hydrogen atom; and n is an integer of 1 to 4. A silver halide color photographic light-sensitive material which provides a magenta dye image having a good light fastness is also disclosed.
摘要:
A direct positive silver halide light-sensitive material capable of forming direct positive images comprising a support having coated thereon at least one internal image type silver halide emulsion layer, wherein at least one hydrophilic colloid layer contains a heterocyclic quaternary salt compound represented by formula (I) in an amount necessary to provide the silver halide photographic emulsion with a fogging function. ##STR1## wherein Z is an atomic group necessary for completing a 5- or 6-membered heterocyclic nucleus, R.sub.1 is an aliphatic group, R.sub.2 is a hydrazonoalkyl group, X.crclbar. is an anion, and n is 1 or 2.
摘要:
A photographic developer composition for obtaining high contrast images which comprises (1) a dihydroxybenzene developing agent, (2) an alkanolamine and (3) a compound having the following formula (I) ##SPC1##wherein R.sub.1 and R.sub.2 each represents a lower aliphatic hydrocarbon group, wherein R.sub.1 and R.sub.2 may combine to form a ring, n represents 0 or 1, and X.sup..crclbar. represents an anion.
摘要:
A pharmaceutical composition for treatment of cancer in an animal comprising:(A) a therapeutically effective amount of at least one compound selected from the group consisting of compounds represented by the General Formula (I). ##STR1## wherein Z.sub.1 and Z.sub.2, which may be the same or different, each represents an atomic group necessary to form a 5- or 6-membered ring;R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represents an alkyl group or an aryl group;L.sub.1 and L.sub.2 each represents a methine group or a substituted methine group;X represents a pharmaceutically acceptable anion;k represents a number necessary for electrical charge balance;n represents 0 or 1; and(B) a pharmaceutically acceptable carrier or diluent.
摘要:
A pharmaceutical composition for treatment of cancer comprises:(A) a therapeutically effective amount of at least one compound selected from the group consisting of compounds represented by the General Formula (I) ##STR1## wherein X.sub.1 and X.sub.2, which may be the same or different, each represents O, S, Se, --CH.dbd.CH--, ##STR2## Y.sub.1 represents O, S, Se, or ##STR3## R.sub.1 and R.sub.3, which may be the same or different, each represents an alkyl group;R.sub.2 represents an alkyl group, an aryl group or a heterocyclic group;Z.sub.1 and Z.sub.2, which may be the same or different, each represents an atomic group necessary to form a 5- or 6-membered ring;L.sub.1 represents a methine group or L.sub.1 and R.sub.3 may combine and form a 5- or 6-membered ring;R.sub.4 and R.sub.5, which may be the same or different, each represents a alkyl group;R.sub.6 and R.sub.7, which may be the same or different, each represents an alkyl group or an aryl group;Q represents a pharmaceutically acceptable anion;l represents 1 or 2;m and n, which may be the same or different, each represents 0 or 1; and(B) a pharmaceutically acceptable carrier or diluent.
摘要翻译:用于治疗癌症的药物组合物包括:(A)治疗有效量的至少一种选自由通式(I)表示的化合物的化合物,其中X1和X2可以是 相同或不同,各自表示O,S,Se,-CH = CH-, Y1表示O,S,Se或者可以相同或不同的R 1和R 3各自表示烷基 组; R2表示烷基,芳基或杂环基; Z 1和Z 2可以相同或不同,表示形成5-或6-元环所必需的原子团; L1表示次甲基或L1和R3可以结合形成5-或6-元环; R 4和R 5可以相同或不同,各自表示烷基; R 6和R 7可以相同或不同,各自表示烷基或芳基; Q表示药学上可接受的阴离子; l表示1或2; m和n可以相同或不同,各自表示0或1; 和(B)药学上可接受的载体或稀释剂。
摘要:
A process for preparing a silver halide photographic emulsion to be used for a photographic material is provided. Therein, additives such as dyes, sensitizers, auxiliary agents to be used upon gold sensitization, and so on are utilized within a period from at the silver halide grain forming time to just before the emulsion coating, and oxidizing agents are added at the time when the functions of the additives become substantially needless to result in conversion of the additives to those having no bad influences on photographic characteristics of the emulsion prepared, or to those having such chemical structures as to facilitate their removal with a washing treatment or the like.Silver halide emulsions prepared by the described process are also disclosed.