| 摘要 |
PURPOSE:To achieve securing a closed property of information and its secrecy of no readhesion, and improve an adhesion property by a method wherein an opaque coating sheet is formed of paper having natural pulp as a main component and specific water absorption degree of paper is set at a specific numerical value (g/m<2>) concerning contact time with water. CONSTITUTION:In a pressure sensitive recording sheet 5, a pressure sensitive recording layer 3 and an opaque resin coating sheet 1 are integrated on one side face of a base material 4 via a melting extruded laminate layer 2. A color coupler and a developer of which both sides or one side are microcapsulated, are respectively or mixedly applied to the pressure sensitive recording layer 3. In that case, the opaque coating sheet 1 is formed by paper having natural pulp as a main component. Furthermore, a water absorption degree of paper by Cobb method specified in JIS-P8140 is set at 30g/m<2> or under when contact time with water is 60s. Further, the laminate layer 2 comes in strong contact with the pressure sensitive recording layer 3 and besides comes in weak contact with the opaque coating sheet 1. |
