Fuji Photo Film Company, Limited

Fujio Kakimi

Hiroharu Matsukawa

Takeshi Mikami

Takashi Naoi

Yoshiyuki Hoshi

Yutaka Akiyoshi

Shinzo Kobayashi

Makoto Yamada

Tadashi Ikeda

Akira Ogawa

Keiso Saeki

Masatoshi Sugiyama

Yoshio Tani

Takayuki Hayashi

Nobuo Hiratsuka

Shunichi Ishikawa

Yasuharu Nakamura

The present invention discloses an image receiving material for electronic photograph comprising a support made of base paper having a thermoplastic resin layer on each side of the support; a toner receiving layer, provided on one side of said support, which contains a thermoplastic resin; and one or more back layers provided on the other side of said support, wherein thermoplastic resin, porous particles and a cationic material are contained in any one of said back layers. Such image receiving material for electronic photograph of the present invention has a right side which is excellent in glossiness and thus allows electronic photographic image full of photographic touch to be formed thereon, and a back side having desirable printability for both of electronic photographic image and ink-jet printed image.

Image receiving material for electronic photograph

A light-sensitive material comprises a support and a light-sensitive layer provided thereon which contains silver halide, a reducing agent, a polymerizable compound, a color image forming substance and a base precursor. The silver halide, the reducing agent, the polymerizable compound, the color image forming substance and the base pre cursor are contained in microcapsules which are dispersed in the light-sensitive layer. According to the present invention, the color image forming substance is a coloredsubstance, namely a dye or a pigment, and the microcapsules further contain a polar compound such as an alcohol, an ether, an amide, an urea, an urethane and a sulfonamide. Most of the polar compounds preferably have a molecular weight in the range of 100 to 400. An exceptional polar compound is polyethylene glycol or its derivative, which preferably has a molecular weight in the range of 200 to 20,000. The polar compound has a function of preventing the base precursor from decomposition, which is accelerated by the dye or pigment. The polar compound is preferably attached on the surface of the particles of the base precursor.

Light-sensitive material containing silver halide reducing agent,

A light-sensitive microcapsule contains silver halide, an ethylenically unsaturated polymerizable compound and pigment particles. Another light-sensitive microcapsule contains a photopolymerization initiator, an ethylenically unsaturated polymerizable compound and pigment particles. According to the present invention, the pigment particles are surface treated to be lipophilic. The pigment particles are preferably treated with a surface treating agent such as a lipophilic resin or an oil-soluble surface active agent. The light-sensitive microcapsule is advantageously employed in a light-sensitive material comprising a support and a light-sensitive layer in which the microcapsules are dispersed.

Light-sensitive microcapsule containing polymerizable compound and

A light-sensitive material comprises a support and a light-sensitive layer provided thereon which contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound, and at least the silver halide and the polymerizable compound are contained in a microcapsule. The light-sensitive layer further contains a fluorine atom-containing compound.

Light-sensitive material containing silver halide, reducing agent,

Image-forming method employing light-sensitive material having

A light-sensitive material comprises a light-sensitive layer which contains silver halide, a reducing agent and an ethylenic unsaturated polymerizable compound provided on a support (the silver halide and polymerizable compound are contained in microcapsules which are dispersed in the light-sensitive layer), characterized in that the microcapsules have an average particle size (volume average particle diameter) of 8.5 to 20 .mu.m and the following specific particle size distribution. The amount of the microcapsules having a particle size of not larger than one-sixth part of the average particle size is not more than 1 volume % of the total amount of the microcapsules and the amount of the microcapsules having a particle size of not smaller than twice as large as the average particle size is not more than 1 volume % of the total amount of the microcapsules. The microcapsules preferably have a proportion (a/b) of an average thickness (a) of the shell of the microcapsules to the average particles size (b) in the range of 0.5.times.10.sup.-2 to 5.times.10.sup.-2.

Light-sensitive material containing silver halide, reducing agent and

A light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and a polymerizable compound provided on a support, characterized in that the silver halide and the polymerizable compound are together contained in microcapsules which are dispersed in the light-sensitive layer, and the light-sensitive layer further contains dispersed grains of a hydrophobic organic base compound and/or base precursor having a melting point of from 80.degree. to 180.degree. C. which are arranged outside of the microcapsules.

Light-sensitive material containing silver halide, reducing agent

A light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains silver halide, a reducing agent, a polymerizable compound, and an organic solvent which is miscible with the polymerizable compound and is contained in microcapsules.

A light-sensitive microcapsule containing silver halide and a polymerizable compound which is enclosed with a shell comprising a polyurea resin and/or polyurethane resin. A light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains microcapsules containing silver halide and a polymerizable compound enclosed with a shell comprising an polyurea resin and/or a polyurethane resin and a reducing agent.

A light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and a polymerizable compound provided on a support, characterized in that the silver halide and the polymerizable compound are together contained in microcapsules which are dispersed in the light-sensitive layer, and the light-sensitive layer further contains a binder which is arranged outside of the microcapsules. A process for the preparation thereof is also disclosed.

Light-sensitive material containing silver halide reducing agent and

A light-sensitive material comprises a light-sensitive layer which contains silver halide, a reducing agent, a polymerizable compound and a base or base precursor provided on a support. The silver halide and polymerizable compound are contained in microcapsules to form light-sensitive microcapsules which are dispersed in the light-sensitive layer. The base or base precursor is contained in particles which are arranged outside of the light-sensitive microcapsules. At least 30% of the particles are adsorbed on the surface of the light-sensitive microcapsules.

A light-sensitive microcapsule containing silver halide and a polymerizable compound which is enclosed with a shell comprising an amino-aldehyde resin. A light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains microcapsules containing silver halide and a polymerizable compound enclosed with a shell comprising an amino-aldehyde resin and a reducing agent.

A light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains silver halide, a reducing agent, a polymerizable compound and a base or base precursor which is contained in microcapsules under condition that the base or base precursor is dissolved or dispersed in an aqueous solution of a water retention agent.

A light-sensitive material comprising a light-sensitive layer provided on a support, wherein the light-sensitive layer contains silver halide, a reducing agent, a polymerizable compound, and a base or a base precursor. The base or base precursor is contained in microcapsules.

In a process for the preparation of an electrostatographic toner material comprising encapsulating a core material containing colorant with a shell material in an aqueous medium to prepare encapsulated toner particles and drying the so prepared encapsulated toner particles, the improvement which comprises heating the so dried encapsulated toner particles.

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Kanagawa, Japan

Fujio Kakimi