Czasopismo | OPAKOWANIE | Rocznik 2012 - zeszyt 9e

BOPP vs. cellulose films - competition or coexistence?

ANDRZEJ KORNACKI

nr katalogowy: 71167

Nowadays, we usually do not realize the importance of films in our everyday life. We are not aware of how quickly and to what extent we subconsciously get accustomed to their new varieties and applications emerging on the market. Almost every day, on shop shelves, we find a multitude of products packed in various films by various packaging techniques; we take them home in film shopping bags and then dispose of them putting as wastes in film garbage bags to be thrown in garbage bins.The story started at the turn of the 19th and 20th centuries when first experiments were carried out leading to later production of films. The first to come was a cellulose film patented in 1908 by a Swiss textile engineer Jacques E. Brandenberger who called the material "cellophane". In the years to follow, gradual improvement of this film made it possible to widen the range of its applications. It also caused continuous growth of film production in Europe and the USA. As a result, packages in the first half of 20th century were definitely dominated by cellophane, although the fact the the name had been patented (by Du Pont Company) forced various producers to use different names for their products: Tomofan (ChemitexWistom), Transparit (Wolff), Diophane (Transparent Papers), Lozofan (Loznica Viskoza), Cellglass, Helizell and Rayophan. However, in the sixties of the past century new, synthetic films came into view and among them the biggest competitor of cellophane - biaxially oriented polypropylene film, BOPP for short. By its appropriate refining, the properties were obtained which to some extent resembled those of cellulose films, and so it was possible to use BOPP films for similar applications and also on the same packaging lines. Since the new film was considerably cheaper, resistant to atmospheric conditions and not so hazardous to the environment, it promptly supplanted cellulose films on the market. OPAKOWANIE 20 ENGLISH EDITION BO[...]

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