摘要:
In a method of preparing a color photographic image by a silver dyestuff bleaching process, the improvement which comprises dyestuff bleaching a color photographic light-sensitive element in the presence of a phenazine-N-oxide, as a bleaching catalyst, represented by the formula:
WHEREIN R, which may be the same or different groups, represents a member selected from the group consisting of a hydrogen atom, an alkyl group having one to eight carbon atoms, a nitro group, a cyano group, a carboxy group, a sulfogroup, an acylamino group, a sulfonamino group, a halogen atom and a carbocyclic aromatic residue formed by the condensation of two of said R''s bonded to adjacent carbon atoms.
摘要:
wherein R1, R2 and R3 each represent a hydroxyl group, a hydroxylamino group, an amino group, an alkylamino group of from 1-6 carbon atoms, said alkyl group of said alkylamino group capable of being substituted by a member selected from the group consisting of a hydroxy group, a dialkylamino group of from 2 to 8 carbon atoms and an alkoxy group of from 1 to 4 carbon atoms, an arylamino group, said arylamino group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group and a halogen atom, an alkoxyl group of from 1 to 6 carbon atoms, an aryloxy group, said aryloxy group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group, and a halogen atom, an alkyl group of from 1 to 6 carbon atoms, an aryl group, said aryl group capable of being substituted with a member selected from the group consisting of an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a hydroxy group, and a halogen atom, or a halogen atom, said compound represented by the above described formula containing no more than one group which is active to gelatin, with the proviso that if R1, R2 or R3 is a halogen atom, no more than one of said R1, R2 and R3 can be a halogen atom. The uniqueness of the above-described invention resides in the fact that the compounds set forth above, do not exhibit a hardening effect on gelatin, but rather, exhibit a sensitizing effect when employed in a gelatino silver halide photo-sensitive material. A practical, useful gelatino silver halide photo-sensitive material having incorporated therein a compound represented by the following formula:
摘要翻译:一种实用的,有用的明胶卤化银感光材料,其中掺入由下式表示的化合物:N ANGLE R1-CC-R2 | PARALLEL NN ANGLE C | R3其中R1,R2和R3各自表示羟基,羟基氨基 基团,氨基,1-6个碳原子的烷基氨基,所述烷基氨基的所述烷基能够被选自羟基,2-8个碳原子的二烷基氨基, 原子和具有1至4个碳原子的烷氧基,芳基氨基,所述芳基氨基能够被选自1至4个碳原子的烷基,1至4个碳原子的烷氧基, 至4个碳原子,羟基和卤素原子,具有1至6个碳原子的烷氧基,芳氧基,所述芳氧基能够被选自下列的基团取代: 1至4个碳原子的烷氧基,1至4个碳原子的烷氧基,羟基和卤素原子,1至6个碳原子的烷基,芳基,所述芳基能够被 选自由1至4个碳原子的烷基,1至4个碳原子的烷氧基,羟基和卤素原子或卤素原子组成的组中的至少一个,所述化合物由上述 该配方含有不超过一个对明胶有活性的基团,条件是如果R1,R2或R3是卤素原子,则不超过一个所述R 1,R 2和R 3可以是卤素原子。
摘要:
A SPECTRALLY SENSITIZED SILVER HALIDE PHOTOGRAPHIC EMULSION, HAVING IMPROVED SENSITIVITY IN THE RED-SENSITIVE REGION, YET NO INCREASE IN FOGGING, COMPRISING A COMBINATION OF A PENTAMETHINECYANINE-TYPE DYE AND AN AROMATIC HETEROCYCLIC COMPOUND HAVING A THIO-KETO STRUCTURE IS DISCLOSED.
摘要:
Photographic silver halide emulsion and photographic elements containing same, said elements containing certain phenazine desensitizing dyes. The dyes of this invention selectively desensitize the silver halide emulsion to visible light, as contrasted with X-rays.
摘要:
Processing silver halide, light-sensitive photographic materials employing solutions containing aldehyde hardening agents and certain phenazine oxides or dioxides in order to maintain the mechanical strength of the emulsion layers thereof during processing without impairing the photographic characteristics of the processed materials.
摘要:
wherein D represents a divalent aromatic group combining with each other the pyromidinylamino groups or triazinylamino groups shown in the above formula, R3, R4, R5 and R6 each represents a hydrogen atom, a hydroxyl group, an alkoxyl group, a halogen atom, an amino group, an alkyl amino group or a substituted alkylamino group, such as, a hydroxyalkylamino group, a sulfoalkylamino group, a cycloalkylamino group, an arylamino group and a heterocyclic amino residual group, and W represents CH- or N-.
wherein Z1 represents the nonmetallic atoms necessary for forming 4-quinoline nucleus, Z2 represents the nonmetallic atoms necessary for forming a 5or 6-membered ring, R1 and R2 represent substituted or nonsubstituted alkyl groups, X is an acid anion group, M IS 1 OR 2, AND P IS 1 OR 2, SAID DYE FORMING AN INTRAMOLECULAR SALT WHEN P IS 1, AND TOGETHER WITH A COMPOUND HAVING TRIAZINE NUCLEI OR PYRIMIDINE NUCLEI REPRESENTED BY THE FOLLOWING GENERAL FORMULA II:
A photographic silver halide emulsion having incorporated therein the sensitizing dye represented by the following general formula I:
摘要:
A process for developing exposed multilayer color photographic silver halide light-sensitive elements which comprises processing said color photographic element in a processing composition containing a compound represented by the general formula: WHEREIN R represents an alkyl group having four to 7 carbon atoms or a compound represented by the general formula: WHEREIN R'' represents an alkylene group having one to eight carbon atoms.
WHEREIN R AND R1 EACH REPRESENTS A HYDROGEN ATOM, A LOWER ALKYL GROUP OR AN ARYL GROUP; X REPRESENTS A HYDROXYL GROUP AND
-N(-R1)-R2
(WHERE R1 AND R2 EACH REPRESENTS A LOWER ALKYL GROUP OR ARYL GROUP AND R1 AND R2 MAY TOGETHER COMPLETE A HETEROCYCLIC RING); AND Y REPRESENTS
-N(-R3)-
(WHERE R3 REPRESENTS A LOWER ALKYL GROUP OR AN ARALKYL GROUP), IS USED IN DIFFUSION TRANSFER PHOTOGRAPHIC MATERIAL TO GIVE DEEP BLACK IMAGES OR PRINTINGS ON A POSITIVE MATERIAL IN DIFFISION TRANSFER PHOTOGRAPHY.