| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive and process-simplified method for recycling the ink ribbons for heat transfer printing with excellent measure to cope with the safety and environmental facility. SOLUTION: An ink dispersion type solvent mainly comprising side-branching type hydrocarbon is used to subject the used ink ribbons for heat transfer printing to the ultrasonic cleaning thereby peeling the ink layer 2 from the film base material 1. After removal of ink the film base material 1 is pulled up, air dried thereby recovering the film base material as a raw material. Meanwhile the waste of the ink-dispersing type solvent is subjected to the filtration to remove only the ink layer 2 and the remaining solvent is used for the ultrasonic cleaning.</p> |
