| 摘要 |
PROBLEM TO BE SOLVED: To obtain a high ink repellency and excellent printing durability by sequentially providing an ink receiving layer, a heat sensitive layer and a hydrophilic swelling layer in this order on a base plate, forming the heat sensitive layer of a thin film of a carbon and/or metal of a specific film thickness, and forming the ink receiving layer of a specific compound. SOLUTION: To efficiently absorb a laser beam, a heat sensitive layer is formed of a thin film having a film thickness of 1,000 Angstrom or less made of a carbon and/or a metal. An ink receiving layer has rigid adhesive properties of the plate to the sensitive layer and carries a role of a thermal insulating layer. The receiving layer is made of a polymer compound obtained from a monomer having a hydroxyl group, carbonyl group, carboxyl group, isocyanate group, or epoxy group or a compound having a hydroxyl group, carbonyl group, carboxyl group, or epoxy group. Since the receiving layer contains a chemical bond having such an oxygen or a functional group having an oxygen, adhesive properties of the receiving layer to a hydrophilic swelling layer become rigid, and an ink repellency and printing durability are improved. |
