Fuji Photo Film Company, Limited

Kokichi Waki

Masahiro Asami

Shigeru Ohno

Keiichi Adachi

Seiki Sakanoue

Osamu Takahashi

Yoshio Inagaki

Shigeo Hirano

Tsumoru Hirano

Shinsaku Fujita

Kazunori Hasebe

Yukio Karino

Koichi Koyama

Motohiko Tsubota

Yoshinori Shibata

Asao Nakatsuka

There is disclosed a silver halide color photographic material comprising a silver halide emulsion of high-silver chloride emulsion wherein a thiosulfonic compound represented by formula (I) and a sulfinic acid compound represented by formula (II) are added in the step of the production of said emulsion followed by sulfur sensitization. The disclosure described provides a silver halide color photographic material less in fogging due to the lapse of time after preparation of the emulsion for coating and less in fogging due to rapid development processing.

Silver halide color photographic material containing a stabilized high

A silver halide color photographic material is disclosed. The photographic material comprises a support having provided thereon at least one silver halide emulsion layer wherein silver halide grains comprise monodisperse silver chlorobromide containing at least 2 mol % of silver chloride and having an area ratio of crystal face of Mirror indeces (100) satisfying the relationship:

Entitled silver halide photographic materials

A method of color image formation is disclosed, comprising imagewise exposing a color photographic light-sensitive material comprising a reflective support having provided thereon at least one light-sensitive layer containing a color coupler capable of forming a color image upon coupling with an oxidation product of an aromatic primary amine developing agent and a silver halide emulsion, and processing the exposed light-sensitive material with a color developing solution containing substantially no benzyl alcohol within a development time of 2 minutes and 30 seconds, wherein said processing is carried out in the pressence of at least one compound represented by formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each represents a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, an acyl group, or a sulfonyl group; or R.sup.1 and R.sup.2, or R.sup.3 and R.sup.4 together form a ring; X represents a substituted or unsubstituted lower alkylene group; and n represents an integer of from 1 to 4. Disadvantages due to use of benzyl alcohol can be eliminated, and reduction in color density noted when color development processing is conducted over a short time without using benzyl alcohol can be prevented.

Method for color image formation

There is disclosed a silver halide color photographic material having (A) a red-sensitive, (B) a green-sensitive, and (C) a blue sensitive silver halide emulsion layers, wherein the silver halide emulsion of each layer is a high-silver-chloride emulsion, and the silver halide emulsions of the red-sensitive and blue-sensitive layers is spectrally sensitized in the blue light region within a range satisfying specific relationships. Further two or more silver halide emulsions are mixed so that the gammas of the (A) red-sensitive and the (B) green-sensitive layers in the photosensitive region of the blue-sensitive layer may be in a limited range. The disclosure as described provides a silver halide color photographic material which can form a color image giving a stereoscopic feeling that can reproduce bright primary colors less in turbidity over the range from the low-density part to the high-density part, and which can produce fully the high-density region of primary colors with subtle shades.

Silver halide color photographic material improved in color reproduction

A silver halide color photographic material is disclosed having blue-sensitive, green-sensitive, and red-sensitive silver halide emulsion layers on a support, wherein said red-sensitive silver halide emulsion layer contains a dispersion of fine oleophilic grains formed by dispersing by emulsification a mixture comprising a water-insoluble and organic solvent-soluble homopolymer or copolymer and at least one coupler represented by formula (I) or formula (II), and the silver halide emulsion layer or non-light-sensitive layer of the material contains a dye represented by formula (III); wherein formula (I) is represented by ##STR1## wherein R.sub.11 represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R.sub.12 represents an acylamino group or an alkyl group; R.sub.13 represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, or R.sub.12 and R.sub.13 are bonded together to form a nitrogen-containing heterocyclic ring; Z.sub.11 represents a hydrogen atom, an alkyl group, an aryloxy group, an alkylthio group or an arylthio group; formula (II) is represented by ##STR2## wherein R.sub.21 and R.sub.22 each represents a hydrogen atom, an alkyl group, a cycloalkyl group or an aryl group, provided that at least one of R.sub.21 and R.sub.22 is a substituent other than a hydrogen atom; R.sub.23 represents a hydrogen atom, a carbamoyl group, a sulfamyl group, an alkoxycarbonyl group or an aryloxycrbonyl group; Z.sub.21 represents a hydrogen atom, an alkoxy group, an aryloxy group, an alkylthio group or an arylthio group; X represents --CO-- or --SO.sub.2 --; and formula (III) is represented by ##STR3## wherein R.sub.1 and R.sub.2 each represents --COOR.sub.5 or ##STR4## R.sub.3 and R.sub.4 each represents a hydrogen atom or an alkyl group; R.sub.5 and R.sub.6 each represents a hydrogen atom, an alkyl group or an aryl group; Q.sub.1 and Q.sub.2 each represents an aryl group; X.sub.1 and X.sub.2 each represents a divalent linking group; Y.sub.1 and Y.sub.2 each represents a sulfo group or a carboxyl group; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; m.sub.1 and m.sub.2 each represents 1 or 2; n represents 0, 1 or 2; P.sub.1 and P.sub.2 each represents 0, 1, 2, 3 or 4; and s.sub.1 and s.sub.2 each represents 1 or 2. The material forms a color image with less stain, which is stable for a long period of time; it contains a novel dye which may easily be discolored or dissolved out by photographic processing without having any bad influence on the photographic characteristics of the material; and it is excellent in the time-dependent storability.

Silver halide color photographic material containing a cyan coupler, a

A method for processing a silver halide photographic element comprising carrying out developement processing, including a washing step, of an imagewise exposed silver halide photographic element, wherein the washing step is carried out at 45.degree. C. or less for 90 sec. or less, and wherein the silver halide color photographic element comprises a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide photographic element contains in a hydrophilic colloid layer, from 2 mg/m.sup.2 to 40 mg/n.sup.2 of at least one dye represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2, which can be the same or different, can each represents --COOR.sub.5, or ##STR2## R.sub.3 and R.sub.4, which can be the same or different, each represents a hydrogen atom or an alkyl group, R.sub.5 and R.sub.6, which can be the same or different, each represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, and R.sub.1 and R.sub.2 represent --COOR.sub.5 and R.sub.5 represents a hydrogen atom, R.sub.1 and R.sub.2 represent a carboxyl group which can form a salt, R.sub.5 and R.sub.6 can combine together to form a 5- or 6-membered ring, Q.sub.1 and Q.sub.2, which can be the same or different, each represents a substituted or unsubstituted aryl group, X.sub.1 and X.sub.2, which can be the same or different, each represents a divalent linking group or a bond, Y.sub.1 and Y.sub.2, which can be the same or different, each represents a sulfo group or a carboxyl group which can form a salt, L.sub.1, L.sub.2 and L.sub.3, which can be the same or different, each represents a substituted or unsubstituted methine group, m.sub.1 and m.sub.2 each is 1 or 2, n is 0, 1 or 2, p.sub.1 and p.sub.2 each is 0, 1, 2, 3, or 4, and s.sub.1 and s.sub.2 each is 1 or 2.

Silver halide photographic development and washing process of the

A color image-forming process of developing a color photographic paper having on a support silver halide emulsion layer(s) containing a monodispersed silver chlorobromide emulsion having a deviation coefficient of not more than 20% and a color coupler, said emulsion being spectrally sensitized by at least one of the compounds represented by general formulae (I), (II), (III) and (IV) defined in this invention, using a color developer containing substantially no benzyl alcohol for a period of time of not more than 2 minutes and 30 seconds. In processing the aforesaid color photographic paper, even when the color paper is procesed using a color developer containing no benzyl alcohol, which caused pollution problems, in a short processing time of not more than 2 minutes and 30 seconds, stable color images having less formation of fog and high color density are obtained.

Color image forming process comprising developing with substantially no

Color image-forming process compressing developer containing no benzyl

A silver halide color photographic material is provided, containing a pyrazoloazole type magenta coupler of the general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group which is removable by a coupling reaction with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, .dbd.N-- or --NH--; one of Za--Zb bond and Zb--Zc bond is a double bond and the other is a single bond; one of Za--Zb and Zb--Zc may optionally be condensed with a 5- to 7-membered ring when Za and Zb or Zb and Zc are both carbon atoms; R.sup.1 or X may form a dimer or higher polymer; when Za, Zb or Zc is a substituted methine group, said methine group may optionally form a dimer or higher polymer; characterized in that two or more monodispersed silver halide emulsions each having a different sensitivity are admixed and incorporated into the silver halide emulsion layer in said material, said monodispersed silver halide emulsion being regulated to have a ratio of .sigma./d of 0.2 or less, where .sigma. means a statistical standard deviation in the particle size distribution and d means an average particle diameter. The present silver halide color photographic material may form a magenta image of good light absorption, and the gradation control thereof is easy. Thus, the present photographic material is characterized by improved color reproductivity and tone reproductivity.

Silver halide color photographic materials

A novel color diffusion transfer photographic material comprising (A) a light-sensitive element comprising a first support having thereon at least a silver halide photographic emulsion layer and a dye providing compound, (B) an image receiving element comprising a second support having thereon at least an image receiving layer and (C) means for providing an alkaline treating solution between element (A) and (B), wherein

Hardened color diffusion transfer photographic materials

A color photographic light-sensitive material is described containing a dye-releasing redox compound having the following formula: ##STR1## wherein G represents a hydroxy group or a group providing a hydroxy group by hydrolysis;

Color photographic light-sensitive material

In color photographic sensitive materials comprising at least one direct reversal silver halide emulsion layer associated with a diffusible dye-releasing redox compound on a base, the improvement which comprises that at least one of a layer containing said redox compound or said direct reversal silver halide emulsion layer contains about 5 to 200 mg per 100 millimols silver in the emulsion layer of a compound represented by the general formula (I): ##STR1## wherein A.sub.1 and A.sub.2 each represents a hydrogen atom or a hydrolyzable group, P, Q and R which may be the same or different each represents a hydrogen atom, an alkyl group, an aryl group, an alkylthio group, an arylthio group, a hydroxyl group, a halogen atom, an alkoxy group, an aryloxy group, a heterocyclic group or an --S--Z.sup.2 group, Z.sup.1 and Z.sup.2 may be the same or different and each represents an unsaturated heterocyclic residue which is photographically inactive when bonded to the hydroquinone through the sulfur moiety, and --S--Z.sup.1 or --S--Z.sup.2 is an atomic group which when released by oxidation exhibits a development inhibiting function; at least one of P and Q is an alkylthio group or an arylthio group, and at least one of P, Q and R contains a ballast group.

Color photographic sensitive materials

In a color diffusion transfer photographic element containing at least one dye-releasing redox compound-containing layer associated with a silver halide photographic emulsion and capable of releasing a diffusible dye as a result of a redox reaction with the oxidation product of a developing agent produced by the development of silver halide with an alkaline processing solution, and at least one layer containing an antistain agent, the improvement which comprises said dye-releasing redox compound-containing layer associated with said silver halide photographic emulsion being spaced from the adjacent interlayer containing said antistain agent by a spacer layer essentially containing a hydrophilic colloid or by a silver halide emulsion layer having substantially the same spectral sensitivity as that of the associated silver halide emulsion.

Growing community of inventors

Kanagawa, Japan

Kokichi Waki