Light-sensitive material containing silver halide, reducing agent polymerizable compound, and base arranged outside of microcapsules

Claim 2

In a light-sensitive material comprising a light-sensitive layer which contains silver halide, a reducing agent and an ethylenically unsaturated polymerizable compound provided on a support, the improvement wherein the silver halide and the polymerizable compound are contained in microcapsules which are dispersed in the light-sensitive layer, 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° to 180° C. which are arranged outside of the microcapsules, said polymerizable compound being contained in microcapsules in an amount of 5 to 1.2×10 5 times by weight as much as the amount of the silver halide.

Claim 3

The light-sensitive material as claimed in claim 1, wherein the silver halide, the polymerizable compound and the reducing agent are contained in microcapsules in the light-sensitive layer.

Claim 4

The light-sensitive material as claimed in claim 1, wherein the grains of a hydrophobic organic base compound and/or base precursor is contained in the light-sensitive layer in the form of the dispersion of the grains in a water-soluble polymer.

Claim 5

The light-sensitive material as claimed in claim 1, wherein the hydrophobic organic base compound and/or base precursor is a guanidine derivative.

Claim 6

The light-sensitive material as claimed in claim 1, wherein the hydrophobic organic base compound is a guanidine derivative having a pKa value of not lower than 8.

Claim 7

The light-sensitive material as claimed in claim 1, wherein the hydrophobic organic base compound is contained in an amount of from 0.01 to 50 weight % based on the total solid content of the light sensitive layer.

Claim 8

The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer further contains a color image forming substance.

Claim 9

The light-sensitive material as claimed in claim 1, wherein the light-sensitive layer further contains a hot-melt solvent.

Claim 10

A light-sensitive material as claimed in claim 1, wherein the hydrophobic organic base compound and/or base precursor is guanidine derivative having the following formula (I) or (II): ##STR9## in which each of R 1 to R 9 and R 11 to R 14 independently is a monovalent group selected from the group consisting of hydrogen, an alkyl group containing 1-18 carbon atoms, a cycloalkyl group, an aralkyl group, amino, an alkylamino, an acylamino, carbamoylamino, a heterocyclic group and an aryl group; wherein at least one of R 1 to R 5 and at least one of R 6 to R 9 and R 11 to R 14 are monovalent groups other than hydrogen; wherein each of R 1 to R 9 and R 11 to R 14 may be substituted with a monovalent group selected from the group consisting of a lower alkyl group, an alkoxy group, nitro, an acylamino group, an alkylamino group and a halogen atom; and wherein R 10 is a divalent group selected from the group consisting of a lower alkylene, a phenylene, a naphthylene ##STR10## wherein X is a single bond or a divalent group selected from the group consisting of a lower alkylene, --SO 2 --, S 2 --, --S--, --O-- and --NH--.