Abstract

For development of computer-to-plate direct exposure system, it is necessary to develop a dry and high definition recording process connected to the computer system. In the wax melt-type laser thermal transfer printing, the laser diode irradiation is absorbed as heat in the thermal transfer ribbon that results in local melting and transfer of the ink to the receiving sheet. In this research, the ink image was transferred to the paper and an aluminum plate by laser heating technology for making the high definition image and offset printing plate directly. The fundamental characteristics such as the shape of printed pixel, printing energy and optimization of printing condition were discussed in the melt-type thermal printing by laser heating.

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