Corona treatment improves 'wettability' of plastic surfaces
Many engineering plastics lack sufficient surface energy for printing or
bonding, polypropylene and polyethylene being prime examples. Their
inability to 'wet' sufficiently creates severe limitations when it comes
to design choice. However, the 'wettability' of such surfaces can be
radically improved by pre-treatment using an atmospheric corona discharge.
Now available in the UK from Intertronics, the 3DT corona system is able
to treat any three-dimensional polymer surface - be it injection or blow
moulded, vacuum formed or extruded - gently, quickly and efficiently
prior to printing, bonding, coating or laminating. The systems are
available in semi- or fully-automatic versions, or stand alone
workstations.