| 摘要 |
A pre-printing or overprinting method for rendering unique, via airbrushing or laser engraving, any printed logo or alphanumeric code envisages mounting, on any offset-printing or flexographic line, at least one ink-jet airbrush or a laser marker on an arm oscillating with random movement, for producing continuously a differentiated and unique nonlinear sign, which interferes directly with the logo or alphanumeric code already printed, or for sending a jet of silicone-based or erosive liquid limited to the space where said logo or alphanumeric code is to be printed, prior to printing thereof. |
