Photo-sensitive composition for dry formation of image

Claim 1

A photo-sensitive composition used for the dry formation of an image without requiring any fixing operation consisting essentially of a dyestuff having photofading properties selected from the group consisting of an azo dyestuff, a triphenylmethane dyestuff, a xanthene dyestuff, and an oxazine dyestuff; an aryl ketone sensitizing agent selected from the group consisting of benzophenone, 4-methylbenzophenone, 4-chlorobenzophenone, 4-ethylbenzophenone, 4,4'-dimethoxybenzophenone, acetophenone, 4-methylacetophenone, propiophenone, benzalacetophenone and ω-bromoacetophenone; and a high molecular polymer binding agent selected from the group consisting of an N-substituted polyamide resin and a vinyl acetate polymer or its partially saponified product, wherein the proportions of the dyestuff, the ketonic sensitizing agent and the high molecular polymer are 0.05 to 20:0.2 to 200:100 parts by weight.

Claim 7

A method for production of an image which comprises applying a light to a material for dry formation of an image through an original picture corresponding to the image, the said material being one prepared by incorporating a photo-sensitive composition comprising a dyestuff having photo-fading properties selected from the group consisting of an azo dyestuff, a triphenylmethane dyestuff, a xanthene dyestuff and an axazine dyestuff; an aryl ketone sensitizing agent selected from the group consisting of benzophenone, 4-methylbenzophenone, 4-chlorobenzophenone, 4-ethylbenzophenone, 4,4'-dimethoxybenzophenone, acetophenone, 4-methylacetophenone, propiophenone, benzalacetophenone and ω-bromoacetophenone; and a high molecular polymer binding agent selected from the group consisting of an N-substituted polyamide resin and a vinyl acetate polymer or its partially saponified product into a plastic material and molding the resulting product, wherein the proportions of the dyestuff, the ketonic sensitizing agent and the high molecular polymer are 0.05 to 20:0.2 to 200:100 parts by weight.

Claim 8

A method for production of an image which comprises applying a light to a material for dry formation of an image through an original picture corresponding to the image, the said material being one prepared by incorporating a photo-sensitive composition comprising a dyestuff having photo-fading properties selected from the group consisting of an azo dyestuff, a triphenylmethane dyestuff, a xanthene dyestuff and an axazine dyestuff; an aryl ketone sensitizing agent selected from the group consisting of benzophenone, 4-methylbenzophenone, 4-chlorobenzophenone, 4-ethylbenzophenone, 4,4'-dimethoxybenzophenone, acetophenone, 4-methylacetophenone, propiophenone, benzalacetophenone and ω-bromoacetophenone; and a high molecular polymer binding agent selected from the group consisting of an N-substituted polyamide resin and a vinyl acetate polymer or its partially saponified product into a plastic material and molding the resulting product, wherein the proportions of the dyestuff, the ketonic sensitizing agent and the high molecular polymer are 0.05 to 20:0.2 to 200:100 parts by weight.

Claim 9

A method for production of an image which comprises applying a light to a material for dry formation of an image through an original picture corresponding to the image, the said material being one prepared by applying a photo-sensitive composition comprising a dyestuff having photo-fading properties selected from the group consisting of an azo dyestuff, a triphenylmethane dyestuff, a xanthene dyestuff, and an oxazine dyestuff; an aryl ketone sensitizing agent selected from the group consisting of benzophenone, 4-methylbenzophenone, 4-chlorobenzophenone, 4-ethylbenzophenone, 4,4'-dimethoxybenzophenone, acetophenone, 4-methylacetophenone, propiophenone, benzalacetophenone and ω-bromoacetophenone; and a high molecular polymer binding agent selected from the group consisting of an N-substituted polyamide resin and a vinyl acetate polymer or its partially saponified product, or its solution in an appropriate solvent on a supporter to form a layer of the photo-sensitive composition, wherein the proportions of the dyestuff, the ketonic sensitizing agent and the high molecular polymer are 0.05 to 20:0.2 to 200:100 parts by weight.

Claim 10

A method for production of an image which comprises applying a light to a material for dry formation of an image through an original picture corresponding to the image, the said material being one prepared by applying a photo-sensitive composition comprising a dyestuff having photo-fading properties selected from the group consisting of an azo dyestuff, a triphenylmethane dyestuff, a xanthene dyestuff, and an oxazine dyestuff; an aryl ketone sensitizing agent selected from the group consisting of benzophenone, 4-methylbenzophenone, 4-chlorobenzophenone, 4-ethylbenzophenone, 4,4'-dimethoxybenzophenone, acetophenone, 4-methylacetophenone, propiophenone, benzalacetophenone and ω-bromoacetophenone; and a high molecular polymer binding agent selected from the group consisting of an N-substituted polyamide resin and a vinyl acetate polymer or its partially saponified product, or its solution in an appropriate solvent on a supporter to form a layer of the photo-sensitive composition, wherein the proportions of the dyestuff, the ketonic sensitizing agent and the high molecular polymer are 0.05 to 20:0.2 to 200:100 parts by weight.