| 摘要 |
PROBLEM TO BE SOLVED: To easily provide a planography printing block having a high printing durability and a high size accuracy by providing an MC layer containing a micro capsule on a supporting member and a hydrophilic ink repellent polymer layer in a block comprising a micro capsule, a hydrophilic ink repellent polymer and a supporting member. SOLUTION: A heat sensitive direct planography block without the need of development comprises a micro capsule accommodating a lipophilic component to be converted to an image part by heat, a hydrophilic ink repellent polymer and a supporting member, wherein the polymer has a functional group capable of crosslinking three-dimensionally and a functional group to be chemically bonded with the lipophilic component in the micro capsule after the breakage of the capsule, and the lipophilic component has a functional group to be chemically bonded with the hydrophilic ink repellent polymer after the breakage of the capsule. In this case, an MC layer containing the micro capsule is provided on the supporting member, and the hydrophilic ink repellent polymer layer is provided thereon. Then, the polymer layer is crosslinked three- dimensionally before drawing an image. |
