Polypropylene
Difficult to work, has forced Cristina’s technologists to give their best.
Launched as an alternative to PVC, it immediately won designers for its outstanding innovative qualities: very versatile and with an incredible amount of finishes.
One of the main problems that Cristina had to face in processing the transparent plastic, was the material’s tendency to spread when it comes into contact with the heat generated by the machines. One of the simplest expedients we normally adopt to reduce the risk of spread and the consequent print, is to let the printed sheet rest for several days. With specific reference to polypropylene, that is particularly sensitive to heat, we have introduced new hot crease die-cutting machines, especially developed to maximise this material’s creasing performance. The introduction of the hotmelt glue has then eliminated the complicated locking systems designed for the early days PP boxes.
Technical characteristics
The disadvantage of Polypropylene lies in its poor transparency, with its milky looking. To the touch, it feels like a softer plastic because of its lower specific weight.
TECHNICAL DATA SHEET
Thickness
From 200 μm to 1 mm.
Types
Crystal: the standard type.
Matt: frosted effect with a smooth surface.
Grained: frosted effect with a rough surface.
Clear tinted: sheets are extruded already tinted.
Fluorescent tinted
Embossed
Technical performance
Printing: litho and silk-screen printing, foil blocking.
Die-cutting: only hot creasing, no high frequency creasing.
Gluing: only hotmelt glue.
Machine Compatibility: suitable for machine erection.