| 摘要 |
PROBLEM TO BE SOLVED: To improve the print quality by upgrading a state of heat transmission to a heat-sensitive sheet at the bottom and at the same time, making a deviation between the heat-sensitive sheets hardly occur. SOLUTION: In the heat-sensitive multiple copying sheet 20 consisting of a plurality of pieces of the heat-sensitive sheet 21-24 formed using a base 25, superposed over each other a thermally fusible transfer agent layer 27 is formed on the back of the base 25 of each of the intermediate heat-sensitive sheets 22, 23 excepting the heat-sensitive sheets 21, 24 at the top and the bottom. On the heat-sensitive sheet 21 at the top, the thermally fusible transfer agent layer 27 is not formed on the back of the base 25, and when the layer 27 is formed. Its thickness has to be smaller than the thickness of the thermally fusible transfer agent layer 27 formed on the intermediate heat sensitive sheets 22, 23. Thus the print density of each of the heat-sensitive sheets 21-24 is almost identical. |
