| 摘要 |
PURPOSE:To protect a dye layer from the peeling off at the time of transfer and to give a high image density with an excellent thermal efficiency by forming an easily adhesive layer on the surface of a base film after its formation or at the same time as the time when the film is formed and elongating both base film and the easily adhesive layer simultaneously to a specified film thickness. CONSTITUTION:Polyethylenterephthalate film or polyethylenenaphthalate film is used as a base film. The easily adhesive layer is formed by applying water resin when the base film is formed or after it is formed before elongation, or laminating film of adhesive resin, then elongating in a cold or not condition, further preferably thermally treating the film. The thickness of the formed easily adhesive layer should be 1mum or less, more preferably 0.005 to 1mum. The adhesion strength applied to the easily adhesive layer and a dye layer formed on the former should be T-type peel-off strength. It should be preferably 10gf/cm or more and further preferably 20gf/cm or more, at 20 deg.C and 20gf/cm or more and further preferably 50gf/cm or more, at 100 deg.C. |
