Relief printing on thermoplastics - by prepn. of metallic reverse copy, application of inks or dyes and transfer in press under heat and pressure

摘要

The process consists of (a) prepg. a reverse mould in special plastics material from the original: (b) copying the reverse mould to obtain a metal printing mould; (c) depositing inks or dyes in the recess of the printing mould, which is heated and cooled for each colour deposited; (d) depositing inks or dyes or the flat parts of the printing mould, heating and cooling the mould for each colour deposited; and (e) transfer onto the material or surface to be printed, using presses with suitable pressure and temp. conditions.