Pigment-containing heat-curable composition, color filter, image-recording material, and method of producing color filter

1. A method of producing a color filter employing an image-recording material comprising a color layer and a photosensitive resin layer laminated thereon, said method comprising at least:

forming a pattern image on the photosensitive resin layer of the image-recording material;

dry-etching the image-recording material to form a pattern in the color layer of the image-recording material;

wherein said color layer is formed by a pigment-containing heat-curable composition comprising a pigment dispersion solution obtained by dispersing a composition containing a heat-curable resin, a solvent, and a pigment, wherein the concentration of the pigment is 50% or more and less than 100% with respect to the total solid contents.

2. A method of producing a color filter, comprising:

forming a color layer by coating and drying a colorant-containing heat-curable composition containing a colorant and a heat-curable compound and having a colorant concentration of 50% by mass or more and less than 100% by mass with respect to the total solid contents, on a substrate;

heat-curing the color layer;

forming an image-recording material by coating and drying a photosensitive resin composition on the color layer and thus forming the photosensitive resin layer on the heat-cured color layer;

forming a pattern formed on the photosensitive resin layer by image wise exposing the photosensitive resin layer to light and developing the photosensitive resin layer; and

forming a pattern in the color layer by dry-etching the image-recording material having the pattern formed on the photosensitive resin layer.

3. The method of producing a color filter of claim 2 , wherein the colorant-containing heat-curable composition contains the colorant at a concentration of 60% by mass or more and 90% by mass or less with respect to the total solid contents.

4. The method of producing a color filter of claim 2 , wherein the colorant-containing heat-curable composition contains the colorant at a concentration of 65% by mass or more and 80% by mass or less with respect to the total solid contents.

5. The method of producing a color filter of claim 2 , wherein the heat-curable compound contains at least one group selected from epoxy, methylol, alkoxymethyl and acyloxymethyl groups as a heat-curable functional group.

6. The method of producing a color filter of claim 2 , wherein the heat-curable compound is an epoxy resin.

7. The method of producing a color filter of claim 6 , wherein the epoxy resin is a multifunctional epoxy resin.

8. The method of producing a color filter of claim 2 , wherein the heat-curable compound is a melamine compound, guanamine compound, glycoluril compound, urea compound, phenol compound, naphthol compound or hydroxyanthracene compound substituted with at least one substituent group selected from methylol, alkoxymethyl and acyloxymethyl groups.