| 摘要 |
PURPOSE:To improve sticking at the time of thermal transfer and obtain a thermal transfer film optimal for the use in a thermal printer, by providing a heat-fusible ink layer on one side of a base film and providing a thin layer of a fluoro polymeric resin on the other side. CONSTITUTION:A polyester film is particularly effective for use as a base film. A coating resin comprises an aqueous emulsion or solution of a fluoro polymeric resin having perfluoroalkyl groups at side chains or other resin based on methacrylic acid or the like, with a stabilizer, an inorganic fine powder, an antistatic agent or the like mixed therein, as required. The coating agent or the like mixed therein, as required. The coating agent produces an effect when being provided in the form of a thin layer, in which the solid content is preferably 0.005 to 0.5g/m<2>. To produce a thermal transfer film, for example, an unstretched film obtained by melt extrusion of a thermoplastic resin in the form of a film is coated with the coating agent, and the coated film is subjected to simultaneous or sequential biaxial stretching. After thermally treating the biaxially stretched film, an ink layer comprising a mixture of paraffin, carbon black or the like is provided on the base film on the side opposite to the anti-sticking layer provided as above. |
