Fuji Photo Film Company, Limited

Fujifilm Corporation

Hiromitsu Yanaka

Takahiro Goto

Kazuo Maemoto

Hisao Yamamoto

Shigeo Koizumi

Kazuto Kunita

Keiji Akiyama

Kazuo Maetomo

The present invention provides a photosensitive recording material having a support, and a photosensitive layer and a protective layer formed in this order on or above the support. The photosensitive layer contains a polymerization initiator, a sensitizing agent, and a polymerizable compound. Further, the protective layer contains a water-insoluble and alkali-soluble dye that has an absorption wavelength region different from the absorption wavelength region of the sensitizing agent, and the dye is dispersed in a solid state in the protective layer. The present invention also provides a planographic printing plate precursor including the photosensitive recording material, a stack of the photosensitive recording materials, and a stack of the planographic printing plate precursors.

Photosensitive recording material, planographic printing plate precursor, and stacks of the same

The present invention provides a planographic printing plate precursor, including: a support; and a photosensitive layer containing a polymerizable compound; an oxygen barrier layer; and a protective layer containing a filler (preferably an organic resin particle), the layers being formed in this order on the support. The present invention also provides a stack of planographic printing plate precursors, produced by stacking the planographic printing plate precursors with the photosensitive layer side outermost layer and the support side rear surface of the adjacent plate precursor in direct contact with each other.

Planographic printing plate precursor and stack thereof

Photosensitive composition and lithographic printing plate precursor using the same

A lithographic printing plate precursor comprising: a hydrophilic support; and an image-forming layer which comprises (A) at least one of: hydrophobic polymer particles comprising a compound having an onium group; and microcapsules encapsulating a compound having an onium group and a hydrophobic compound, and (B) a light-to-heat converting agent.

Lithographic printing plate precursor

A photopolymerizable composition which comprises (A) a polymerizable compound having at least one radical-polymerizable ethylenically unsaturated double bond per molecule and a cohesive energy density of not smaller than 500 J/cm, (B) a radical polymerization initiator and (C) a binder polymer and cures when exposed to light.

Photopolymerizable composition

A lithographic printing plate precursor comprising a hydrophilic support and an image-forming layer containing a heat radical-generating agent, a polymethine dye, and at least one component selected from fine particles containing a compound having a radical polymerizable group and microcapsules encapsulating a compound having a radical polymerizable group.

A lithographic printing plate precursor is disclosed, comprising a support having provided thereon a photosensitive layer containing at least (A) an infrared ray absorbing agent, (B) an onium salt, (C) a radically polymerizable compound, (D) a binder polymer and (E) an organic dye or the precursor thereof capable of undergoing change in color tone upon exposure.

A lithographic printing plate precursor comprising a hydrophilic support having provided thereon an image-forming layer containing a radical initiator, an infrared absorbing dye, and at least one component selected from fine particles containing a radical polymerizable compound having the specific structure and microcapsules encapsulating a radical polymerizable compound having the specific structure.

A lithographic printing plate precursor having a heat-sensitive layer on a water-receptive substrate, wherein the heat-sensitive layer comprises microcapsules containing a compound having a thermally reactive functional group, and the heat-sensitive layer or a layer adjacent to the heat-sensitive layer contains a compound capable of acting as a co-reactant in thermal reaction of the compound having a thermally reactive functional group in a state contained in other microcapsules.

An image forming process comprises the steps of image-wise exposing to light a light-sensitive material, heating the light-sensitive material to develop the silver halide within the exposed area and to harden the hardening layer, and removing the light-sensitive layer and the unhardened area of the hardening layer from the light-sensitive material with an etching solution to form a replica image of the hardened area on the support. The light-sensitive material comprises a support, a hardening layer and a light-sensitive layer in this order. The hardening layer contains an ethylenically unsaturated polymerizable compound represented by the formula (I).

Image forming process using silver halide, reducing agent and

A silver halide light-sensitive material comprises a support, a hardening layer and a light-sensitive layer in order. The light-sensitive layer contains silver halide and a hydrophilic polymer. The hardening layer or the light-sensitive layer contains a reducing agent. The hardening layer contains a mixture of a polymer (A) and a polymer (B). The mixture contains the polymer (A) in an amount of 5 to 70 wt. % and the polymer (B) in an amount of 30 to 95 wt. %. The polymer (A) comprises repeating units of (A1) in an amount of not less than 95 mol %. The polymer (B) comprises repeating units of (B1) in an amount of 10 to 90 mol % and repeating units of (B2) in an amount of 10 to 90 mol %. ##STR1##

Growing community of inventors

Shizuoka, Japan

Hiromitsu Yanaka