In the production process of PCB, there are many defects such as surface smudginess, solder mask unevenness, text excursion, pad damage, track damage etc.
PA seccotine has strong oil resistance, acid resistance and alkali resistance, with which can protect the printing machine from the erosion of fountain solution.
Another group used the 3D information provided by intaglio printing, which raises the ink of letters or features much higher than occurs with conventional anastatic printing.
Attractive and 'Pilfer-Proof' - A stapled box leaves a clear, unmarred surface;no part of the box is obscured (especially print) and the box achieves its function as a messenger.