| 摘要 |
PROBLEM TO BE SOLVED: To obtain a copying slip representing information with good print quality at an upper and a lower slips, by so constituting that the information is surely copied to the lower slip even at a lower temperature than a coloration temperature of a heat-sensitive color generation agent applied to the upper slip. SOLUTION: In a heat-sensitive copying slip 1, a heat sensitive color generation agent 5 is applied to a front face of an upper sales slip 2, and a mixed agent 7 having a dye dispersed in a heat-sensitive wax which is melted at a lower temperature than a coloration temperature of the heat-sensitive color generation agent 5 and is transferred to a front face of a lower slip is applied to a rear face of the upper slip 2. A developer 9 reacting to the dye of the mixed agent 7 thereby developing a color is applied to the front face of the lower slip 3. The heat-sensitive color generation agent 5 is one that is used for general heat-sensitive coloring papers, e.g. formed of a leuco coloring matter, fine crystals of phenol developing compound and a hydrophilic binder. The heat-sensitive wax should melt at the lower temperature than the coloration temperature of the heat-sensitive color generation agent of a face part where information is described, e.g. is formed of a mixture of two or more of beeswax, spermaceti, botanical montan wax such as shellac wax or the like, mineral paraffin wax such as ozokerite, ceresin wax or the like, etc. |
