A silver halide color photographic light sensitive material excellent in both sharpness and whiteness of background while being capable of satisfactorily displaying the yellow coupler characteristics including an excellent color reproduction is provided, wherein the silver halide color photographic light sensitive material contains a compound represented by the following Formula [I] in at least one of the photographic component layers thereof, a compound represented by the following Formula [II] in at least one of the silver halide emulsion layers thereof, and a compound represented by the following Formula [III] in at least one of the photographic component layers; and ##STR1##

Silver halide color photographic light-sensitive material.

A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains, in the dispersion medium phase of the emulsion, one or more kinds of inorganic fine particles having a refractive index the total weight of the fine particles contained in the unit volume of the dispersion medium phase is from 1.0 to 95 wt %, the dispersion medium phase containing the fine particles is substantially transparent to the photosensitive peak wavelength light of the emulsion layer, and the photographic material is exposed and processed in the development process comprising at least a developing step and a fixing step.

Silver halide photographic material.

Disclosed is a silver halide photographic light-sensitive material comprising a base paper support coated with a hydrophilic polymer as a peeling agent, and having thereon, a polyolefin resin layer, and at least one silver halide emulsion layer, wherein the hydrophilic polymer is coated on the side on which the silver halide emulsion layer is provided, and a peel strength between the base paper support and the polyolefin resin layer is within the range of 30 to 160 g in weight per inch, and a maximum color transmission density is not less than 2.0 when the silver halide light-sensitive material is subjected to a color developing.

Light-sensitive silver halide color photographic material

PURPOSE:To prevent the generation of a fog, and to make it possible to obtain the sufficient coloring density of the subject material by incorporating at least one kind of pyrazolone type magenta couplers having a specified coupling releasable group and a specified another compd. in the emulsion layer contd. in the subject material, and by developing the material with a color developer having a prescribed condition. CONSTITUTION:At least one kind of the pyrazolone type magenta couplers shown by formula I and at least one kind of the compds. shown by formulas II and III are incorporated in the emulsion layer contd. in the photosensitive material, and the material is developed with the color developer which has a temp. of the developer of 36-50 deg.C and pH 10.3-12.0. In formula I, L1 and L2 are each an ethylene group, etc., (l) and (m) are each 0 or 1, R1 is alkyl group, etc., R2 is carbon atom, etc., A is sulfur atom, (n) is 1 or 2, B is nitrogen atom, etc., X is an atomic group necessary for forming a ring. In formulas II and III, X is alkoxyl group, etc., R and R are each a group having the same meaning to those of the group X or hydrogen atom, etc., Y is hydroxyl group, etc., R is an aliphatic group, etc., Z2 is a nucleophilic group, etc. Thus, the generation of the fog is suppressed, and the sufficient coloring density of the photosensitive material is obtd.

Method for processing silver halide color photographic sensitive material

A silver halide color photographic material comprises a combination of at least one yellow dye-forming coupler of the following general formula (1) with at least one discoloration inhibitor of special amide, phosphorus or hydrazine compound type to prevent the dye images, especially the yellow dye image, formed therein from discoloring or changing their colors; ##STR1## wherein X 3 represents an organic residue completing a nitrogen-containing heterocyclyl group together with ##STR2## Y represents an aromatic or heterocyclic group; and Z represents a group capable of splitting off when the coupler represented by the foregoing formula reacts with the oxidation product of an aromatic primary amine color developing agent.

Silver halide color photographic material

PURPOSE: To obtain a sensitive material having high sensitivity and showing superior sharpness and graininess by satisfying four conditions with respect to red-, green- and blue-sensitive emulsion layers. CONSTITUTION: When red-, green- and blue-sensitive silver halide emulsion layers are formed on a support, a blue-sensitive silver halide emulsion layer having the highest sensitivity among red-, green- and blue-sensitive silver halide emulsion layers each having the highest sensitivity is positioned farthest from the support. The red-sensitive silver halide emulsion layer having the highest sensitivity and the green-sensitive silver halide emulsion layer having the highest sensitivity are held between the blue-sensitive silver halide emulsion layer having the highest sensitivity and a blue-sensitive silver halide emulsion layer having lower sensitivity. Red-, green- and blue-sensitive silver halide emulsion layers each having the lowest sensitivity are not present between the uppermost layer and the blue-sensitive silver halide emulsion layer having lower sensitivity. At least one layer among the red-, green- and blue-sensitive silver halide emulsion layers each having the highest sensitivity contains a diffusion resistant compound capable of forming a movable dye by a coupling reaction with the oxidized product of a color developing agent. COPYRIGHT: (C)1984,JPO&Japio

Color photographic sensitive silver halide material

PURPOSE: To release a photographically useful substance from a photographic sensitive silver halide material at a desired speed under specified processing condtions and to enhance the shelf stability of the material by adding a specified pyrazole compound to the material. CONSTITUTION: To a photographic sensitive silver halide material is added a pyrazole compound represented by formulaI[where A is a group capable of being eliminated under photographic processing conditions; X is O, S or a group represented by formula II (where R 5 is H, alkyl, aryl, acyl or sulfone, and it may form a condensed ring together with R 1 ); R 1 is H, alkyl, aryl, acyl, sulfone or the like; R 2 is H, alkyl, aryl, alkoxy, amino, cyano or the like; each of R 3 and R 4 is H, alkyl or aryl; and PUG is a photographically useful substance bonding to C substituted at the 4-position of the pyrazole ring through a hetero atom], e.g. the compound of formula III or IV. A protective group or a coupler is stably bonded to the photographically useful substance, the substance is released at a desired speed under certain processing conditions, and stable preservability is provided. COPYRIGHT: (C)1982,JPO&Japio

Phtotographic sensitive silver halide material

PURPOSE:To regulate the release timing of a photographically useful group by converting the bonding part of the group into a specified timing group. CONSTITUTION:To a sensitive material is added a compound represented by the general formula (where A is component capable of reacting with the oxidant of a color developing agent, PUG is photographically useful group, Y is a nucleophilic precursor, it may form a ring together with X, Z is an electrophilic group, and X is a group relating Y to Z in three dimensions, connects to A at a position where it can be substituted for the oxidant of the color developing agent, and can release PUG through intramolecular nucleophilic substitution reaction accompanied by ring closure between Z and Y converted into a nucleophilic group after breaking the bond between A and X). By separating the coupler and the nucleophilic group in the timing group and making the nucleophilic group its precursor, the decomposition due to a processing soln. is improved, and the time up to release can be changed considerably.

Photographic sensitive silver halide material

There is disclosed a novel silver halide photosensitive color photographic material comprising a coupler which consists of a coupling component (A) which is capable of causing a coupling reaction with an oxidized color developing agent and a substituent component bonded at the coupling position of said coupling component (A), which substituent component is capable of being split off on coupling reaction, the improvement characterized in that said substituent comprises a coupling component (B) which can undergo coupling reaction with an oxidized color developing agent when released from said coupling component (A) and a photographically useful component which is capable of being released on coupling reaction of said coupling component (B). The color photographic material according to the present invention provides graininess, sharpness and color reproducibility which is sufficiently competent to the requirement of further miniturization of film size by use of a coupler having novel functions.

Silver halide photosensitive color photographic material

PURPOSE: To improve the sensitivity and color developability of a sensitive material and to reduce fog by incorporating a specified coupler into a silver halide emulsion layer. CONSTITUTION: A two-equiv. yellow coupler represented by the formula is incorporated into one or more silver halide emulsion layers of a sensitive material. In the formula, R 1 is alkyl or cycloalkyl, R 2 is alkyl, acyl or the like, R 3 is a group substitutable on the benzene ring, n=0 or 1, R 4 is an org. group contg. a bonding group having a carbonyl or sulfonyl unit, J is -N(R 5 )CO- or -CON(R 5 )-, R 5 is H, alkyl or the like and X 1 is a group releasable by coupling with the oxidized product of a developing agent. Other coupler and various additives may be incorporated into the sensitive material in combination with the coupler represented by the formula. Especially when a UV absorber is incorporated, the durability of a yellow image is further improved. COPYRIGHT: (C)1988,JPO&Japio

Nakagawa Satoshi

Papers

Color photographic sensitive silver halide material

Phtotographic sensitive silver halide material

Photographic sensitive silver halide material

Silver halide photosensitive color photographic material

Silver halide photographic sensitive material containing novel yellow coupler