| 摘要 |
PURPOSE:To prevent double feeding when thermal printing is carried out while paper is fed sheet by sheet with an automatic paper feeding mechanism, by a method wherein the heat sensitive coloring layer is placed on the top surface of basic material and at the same time, the back coat layer composed of specific substances is placed on its bottom surface. CONSTITUTION:The heat sensitive coloring layer containing leuco dye and developer is placed on the top surface of basic material and at the same time, the antistatic layer composed of stylene series polymer containing an aliphatic quaternary ammonium group and wax state material is placed on the bottom surface of basic material as the back coat layer. Then, when papers are fed, the double feeding thereof are not encountered. The deposit to the basic material of those stylene series polymer having an aliphatic quaternary ammonium group and wax state material is 0.1-10g/m<2> level under dry adhesion standard. Further, the ratio of stylene series polymer to wax state material should be within a range of 1:1-1:0.1 and its surface resistance value should preferably be 10<10>OMEGA max. |
