It isn’t a “time machine” yet, but the MDO (Machine-direction orientation) unit has the ability to literally launch the film into the future. Thanks to machine orientation of the molecular chain of the film, the product takes on important properties that make it more versatile than it originally was and achieve significant downgauging while creating better mechanical and optical features for the film. For istance, according to the experimental tests run by COLINES, a 15-18 micron MOPP film can properly replace a 25-40 micron CPP film. Naturally, this is achievable using specific film recipes and depending on the final applications of the film.
COLINES’ equipment stands out for some exclusive features: through its patented heating system with infrared ray heaters inside the cylinder, the orientation takes place without any temperature dissipation which is a common fault found in standard cylinders. This minimizes the energy consumption as well. Moreover, the sensors detect the temperature directly on the film and this means a more accurate reading of the data. The IR heating system also guarantees reaching the operating temperature much faster than oil and water systems do, which means that IR heating system dramatically reduces scrap during line startup.
A further benefit, thanks to the possibility of adjusting the position, speed and temperature of the cylinders independently, is the significant reduction of the “neck-in”. The infrared eliminates the risk of potential “oil and water leakage”. It represents an enormous advantage as far as environmental sustainability goes.
“We stongly believe that our MDO can offer to flexible packaging manufacturers the chance to boost growth in their market. For this reason, all new POLYCAST® lines come equipped with MDO (MOPP+IR® and MOPE+IR®) and we also offer retrofits on existing lines”, said Eraldo Peccetti, COLINES’ Executive President and co-founder.
For more information go to www.colines.it