Transfer printing method and system for printing images on a workpiece with supercritical fluid

Abstract

The present invention relates to a transfer printing method and a system using the method for printing images on a workpiece with supercritical fluid. The method includes disposing the workpiece inside the first mold and disposing a transfer film above the workpiece, closing the first mold with a second mold and injecting pressured gas, whose pressure is greater than a critical pressure, into the first mold and the second mold, ensuring a temperature of the pressured gas being greater than a critical temperature so as to convert into supercritical fluid, softening the transfer film with the supercritical fluid, transferring an adhesive layer, a print layer and a hardening layer of the transfer film onto the workpiece, and opening the first mold and the second mold to take out the workpiece.

Dependencies are inferred from the claim text.