Extrusion
Extrusion, how does it work?
The polyethylene granules (carbon base coming from fossil resources) are heated to a high enough temperature (200° for PE) and softened into a paste, itself mixed in an extrusion screw and pushed simultaneously to a die, more often than not annular in shape.
This produces a tube which is inflated into a cylindrical bubble. This produces a sheath which, once it has cooled, is cut laterally then wound into spools by drawing rollers, to produce a film.
The thickness of the film depends on the rate of rotation of the extrusion screw and that of the drawing-in rollers. We can propose more than 30 different film colours.
All our polyethylene films can be recycled.
Flexographic printing - up to 8 front/back colours