Fuji Photo Film Company, Limited

Chiyomi Niitsu

Fumiaki Shinozaki

Tamotsu Suzuki

Mikio Totsuka

Yuichi Wakata

An aqueous alkaline developing solution comprises an alkali compound, water and an alkylnaphthalene sulfonate having the following formula: ##STR1## in which R represents an alkyl group of 3 to 5 carbon atoms and q is 0 or an integer of 1 to 3, in the amount of 1 to 20 weight %. The aqueous alkaline developing solution further contains an anionic surface active agent of the specific sulfonate compound having a naphthalene ring and a polypolyoxyethylene moiety, in the amount of 0.1 to 10 weight % and an nonionic surface active agent having a polyoxyethylene moiety and an aromatic ring in its structure in the amount of 0.03 to 3 weight %, or contains an anionic surface active agent of the specific sulfonate compound having the specific aralkyl-substituted benzene ring and a polypolyoxyethylene moiety.

Aqueous alkaline developing solution

Disclosed is an image forming process employing a light-sensitive image forming material and a developing solution. The image forming material comprises a support and either a light-sensitive resin layer containing a pigment or a colorant layer containing a pigment and a light-sensitive resin layer, superposed in order. The process comprises the steps of imagewise exposing the image forming material to light and developing the material by the use of an alkaline developing solution containing at least one of compounds having the following formula (1): ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represents hydrogen, an alkyl group having 1 to 5 carbon atoms which may be substituted or an aryl group which may be substituted, M.sup.1 represents hydrogen, potassium or an ammonium group, Y represents hydrogen or --SO.sub.3 M.sub.2 (in which M.sup.2 represents sodium, potassium or an ammonium group and M.sup.2 may be the same as or different from M.sup.1) and n represents a number in the range of 1 to 1000; to form an image on the support.

Image forming process

A photosensitive material either comprises a support, a peel layer, a barrier layer and a coloring material-containing photosensitive layer or a laminate of a coloring material layer and a photosensitive layer, superposed in order, or comprises a support having a releasing surface, an intermediate layer instead of both the peel layer and the barrier layer as mentioned above, a coloring material-containing photosensitive layer or a laminate of a coloring material layer and a photosensitive layer, superposed in order. The barrier layer or the intermediate layer comprises a polymer having a glass transition temperature not higher than 70.degree. C. which is selected from the group consisting of a homopolymer of an acrylate monomer having an aromatic ring, a methacrylate monomer having an aromatic ring, an acrylamide monomer having an aromatic ring or a methacrylamide monomer having an aromatic ring, a copolymer of two or more of these monomers, and a copolymer of 50 molar % or more of one or more of these monomers and 50 molar % or less of one or two of other copolymerizable monomers.

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Shizuoka, Japan

Chiyomi Niitsu