Fuji Photo Film Company, Limited

Shigeru Kuwashima

Keiichi Adachi

Yoshihiro Jimbo

Akio Mitsui

Makoto Yamada

Shigeru Ohno

Shigeo Hirano

Akihiko Ikegawa

Sadanobu Shuto

Mario Aoki

Masayuki Kuramitsu

Masaru Sano

The present invention relates to a color reversal photographic light-sensitive material, and particularly to a color reversal photographic light-sensitive material improved in skin color (flesh color) reproduction. More specifically, it relates to a color reversal photographic light-sensitive material that is excellent in tone reproduction of gray and skin colors, and that also exhibits a preferable chroma (colorfulness or saturation) with respect to skin colors of different tints.

Silver halide color reversal photographic light-sensitive material

A method of forming a direct positive color image by imagewise exposing a photographic material having at least one emulsion layer which contains previously non-fogged internal latent image-type silver halide grains, on a support, followed by color-developing the exposed material during or after fogging thereof, wherein the photographic material contains a color sensitizing dye and at least one compound or salt thereof which satisfies the condition-1 as defined in the specification. With the image formed by the method having an elevated maximum image density with a lowered minimum image density, and with the iamge-forming method displaying extremely excellent color reproducibility.

Method of forming positive color image

'A positive-positive silver halide color photographic material comprising at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, at least one blue-sensitive silver halide emulsion layer, at least one hydrophilic colloid layer, and at least one colloidal silver layer on a support wherein said silver halide emulsion layer, hydrophilic colloid layer, or colloidal silver layer contains at least one dye of formula (I): ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and each represents an alkyl group, an aryl gorup or a heterocyclic group; L.sub.1, L.sub.2 and L.sub.3 each represents a methine group; n.sub.1 represents 1 or 2; and any of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 has a sulfo group and the total of the groups is at least two or more. A method of forming a color image using the same is also disclosed.

Color photographic material and method of forming color image

Disclosed are direct positive photographic photosensitive materials which have at least one internal latent image core/shell type silver halide emulsion layer, which has not been pre-fogged, on a support wherein the silver halide molar ratio of the core and shell of the emulsion is not more than 1/5, and wherein at least one type of compound which can be represented by the formula (N-I) indicated below is included in the photosensitive material. ##STR1## In this formula, Z represents a non-metal atomic group which is required to form a 5- or 6-membered heterocyclic ring, and Z may be substituted with substituents. R.sup.1 is an aliphatic group, and R.sup.2 is a hydrogen atom, an aliphatic group or an aromatic group. R.sup.1 and R.sup.2 may be substituted with substituents. Furthermore, R.sup.2 may be joined to the heterocyclic ring which is completed by and form a ring. However, at least one of the groups represented by R.sup.1, R.sup.2 and Z contains an alkynyl group, acyl group, hydrazine group or hydrazone group, or alternatively a 6-membered ring is formed with R.sup.1 and R.sup.2 and a dihydropyridinium skeleton is formed. Moreover, at least one of the groups represented by R.sup.1, R.sup.2 and Z may be a group which promotes adsorption on silver halide. Y is a counter ion for balancing the electrical charge, and n is 0 or 1.

Direct positive photographic photosensitive materials

A silver halide color photographic material comprising a support having in a layer thereon at least a dye represented by general formula (I) ##STR1## wherein R.sub.1 and R.sub.4, which may be the same or different, each represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, -NR.sub.7 R.sub.8, --NR.sub.7 CONR.sub.7 R.sub.8, --NR.sub.8 COR.sub.9 or --NR.sub.8 SO.sub.2 R.sub.9 ;

Silver halide color photographic materials

A novel silver halide color photographic material is described, comprising a support having thereon at least three silver halide emulsion layer units each having a sensitivity to each of three primary colors of blue, green and red, wherein at least one unit among said silver halide emulsion layer units comprises a layer group containing at least two layers each having a different sensitivity and at least one layer in said layer group, which satisfies the following condition (A) or (B):

Silver halide color photographic material

There is provided a silver halide photographic material wherein a hydrophilic colloid layer is dyed with a new water-soluble dye that will not adversely affect the photographic characteristics of the silver halide emulsion layer. The silver halide photographic material exhibits excellent performance in that the dye is photochemically inactive such that not allow the sensitivity to lower, the latent image to fade, or the image to fog, and the decoloring or dissolving of the dye proceed rapidly in a photographic processing step, leaving no detrimental color on the processed photographic material.

Silver halide photographic material

A silver halide color reversal reflection print photosensitive material comprises at least one blue-sensitive layer, at least one green-sensitive layer and at least one red-sensitive layer on a support. In the characteristic curves of the color sensitive layers, a fluctuation width of point-gammas and absolute values of point-gammas are defined. The distribution of the grain size of the silver halide grains in silver halide emulsions contained in the color sensitive layer can be controlled by forming the grains in the presence of a silver halide solvent.

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Kanagawa, Japan

Shigeru Kuwashima