| 摘要 |
A substrate, e.g. a vinyl sign, is made with heat transferable inked colours thereon. A composite structure comprising a thin polyester film, a release coating and a heat transferable ink is used for transferring the ink onto the substrate. The coating is sandwiched between the film and the ink, and is adapted so that a) it adheres to the polyester film at room temperature and releases from the film upon heating and b) the coating adheres to the heat transferable ink sufficiently that upon heat transference of the ink to the substrate, the coating transfers with the ink. A design element of the composite structure, with a first colour thereon is placed in contact with the substrate and heated sufficiently for the ink to adhere to the substrate but not permit the coating to release from the polyester film. Any paper backing on the composite is stripped off and then a background composite, with a second colour thereon, is laid on top of the substrate and the design elements. The substrate, design elements and background element are heated to a temperature sufficient for the inks to adhere to the substrate and for he coating to release from the polyester films.
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