摘要:
A method of producing a silver halide photographic emulsion including the step of:reacting a water-soluble silver salt and at least one water-soluble halide salt containing chloride in aqueous solution in the presence of at least one compound represented by formulae (I) or (II): ##STR1## wherein A.sub.1, A.sub.2, A.sub.3 and A.sub.4, which may be the same or different, each represents a nonmetallic atomic group necessary for forming a substituted or unsubstituted heterocyclic ring; B represents a divalent linking group; R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl group; X represents an anion necessary for charge balance; m is 0 or 1; and n is 0 or 1;to form light-sensitive silver halide grains having a silver chloride content of at least 50 mol %, selected from octahedral grains, tetradecahedral grains and tablular grains, wherein at least 30% of the surface area of said light-sensitive silver halide grains is composed of (111) planes. The high chloride silver halide emulsions are suitable for rapid development processing with reduced fogging.
摘要:
A process for forming a superhigh contrast negative image with a stable developer is disclosed, which comprises development processing a silver halide photographic material in the presence of a compound of formula (I) and a compound of formula (II) as defined in the specification.
摘要:
In the presence of a novel antifoggant represented by the general formula (I), a silver halide photographic material which has at least one light-sensitive silver halide emulsion layer on a support is development-processed. The developing solution is one containing both dihydroxybenzenes and 3-pyrazolidones, a developing solution containing both dihydroxybenzenes and aminophenoles, or a developing solution containing a primary aromatic amine developer to suppress markedly fog generation at much reduced sacrifice of sensitivity: ##STR1## wherein M represents a hydrogen atom, an alkali metal atom, NH.sub.4 or a mercapto group-protecting moiety which can be split-off in the presence of an alkali; n represents 1, 2 or 3; R.sup.1 represents a hydrogen atom or --COOR.sup.2 ; and R.sup.2 represents a hydrogen atom, an alkali metal atom, NH.sub.4, or an unsubstituted or substituted alkyl, aryl or aralkyl group.
摘要翻译:在由通式(I)表示的新型防灰雾剂的存在下,在载体上具有至少一个感光卤化银乳剂层的卤化银照相材料进行显影处理。 显影溶液是含有二羟基苯和3-吡唑烷酮的显影液,其是含有二羟基苯和氨基苯酚的显影液,或含有主要芳族胺显影剂的显影液,以在极少的敏感性牺牲下抑制明显的雾产生。 其中M表示氢原子,碱金属原子,NH 4或可在碱存在下分离的巯基保护基; n表示1,2或3; R1表示氢原子或-COOR2; R 2表示氢原子,碱金属原子,NH 4或未取代或取代的烷基,芳基或芳烷基。
摘要:
A method for developing a silver halide photographic material in the presence of an amino compound represented by the following general formula (I) or the salt thereof to increase photographic speed and/or gamma without being attended by a concomitant increase in generation of fog: ##STR1## wherein R.sup.1 represents an alkyl group, an aryl group, an aralkyl group or a cycloalkyl group; R.sup.2 and R.sup.3, which may be the same or different, each represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an aralkyl group or an alkylcarbonyl group, or R.sup.2 and R.sup.3 may combine with each other and form a ring; and A represents a divalent aliphatic linkage group.
摘要翻译:在由下列通式(I)表示的氨基化合物或其盐的存在下显影卤化银照相材料的方法,以增加摄影速度和/或γ,而不伴随着雾的产生的伴随增加: (I)其中R1表示烷基,芳基,芳烷基或环烷基; R 2和R 3可以相同或不同,各自表示氢原子,烷基,烯基,芳基,芳烷基或烷基羰基,或者R 2和R 3可以彼此结合形成 环; A表示二价脂肪连接基团。
摘要:
A silver halide photographic light-sensitive material is disclosed. The material is comprised of a support base having thereon a silver halide emulsion layer and a high molecular compound having a repeating unit containing a residue of benzotriazoles. The repeating unit may be represented by the general formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group, L represents a divalent bonding group, and X represents a monovalent group of benzotriazoles. Improved antifogging agent effects are obtained by utilizing the high molecular compound of applicants' invention in connection with silver halide photographic light-sensitive materials.
摘要:
A silver halide photographic light-sensitive element is described containing a cephalosporin compound in its silver halide emulsion layer of substantially the surface latent image type, or in its hydrophilic colloid layer. This light-sensitive element is prevented in the latent image fading.
摘要:
High-contrast photographic images are obtained by developing with a developer containing at least one dihydroxybenzene and sulfite ion and then treating with a solution of an oxidizing agent.
摘要:
A color photographic process which comprises processing silver halide color photographic materials using a color developer containing a 2-alkyne-1-ol represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, a hydroxyalkyl group, an aminoalkyl group, a carboxyalkyl group, or a formylalkyl group, and R.sub.1 and R.sub.2 may be the same or different.By using the above compound in a color photographic process, the speed of color development can be effectively promoted without increasing fog, and, further, the stability of the color developer is improved.
摘要:
A color photographic silver halide light-sensitive material which comprises a support having thereon at least two light-sensitive layers, at least one of said layers containing a compound capable of coupling with an oxidation product of a color developing agent and in which splitable hetero aromatic ring containing a triazole or diazole ring is connected to the carbon atom in the coupling position, through the nitrogen atom in the 1-position of said triazole or diazole ring.