Cel Objectives and content Polyolefin based polymer films, especially polypropylene films have excellent mechanical, optical and barrier properties, well suited for many industrial applications like food packaging, electrical insulation, functional coatings, etc. However they require a surface treatment to increase their surface tension at a level allowing printing, laminating or metallizing... Currently, there is no satisfactory process to achieve this goal: typical corona discharge treatment in air provides partial results, not sufficient to reach high, consistent and permanent value of surface tension. As a result water based inks cannot or only rarely be used for printing, (oil based inks encounter pollution problems), for many applications chlorine containing films are still in use industrially and the most sophisticated polypropylene films are not printable at all, in spite of their excellent properties. Two members of the consortium have demonstrated the feasibility to produce and to maintain for months, polypropylene surface tension up to 60 dyn/cm by using corona discharge treatment under specially designed active atmosphere (patented process); (vs 42-44 dyn/cm ordinarily reached with air corona discharge treatment, falling down to 3840 dyn/cm in few days). This level of surface tension is completely satisfactory for water based inks printing or functional coatings. The purpose of the research project is to reached a level of knowledge allowing industrial applications by combining, on an international level, the skills between a gas manufacturer (atmosphere control), a corona discharge devices manufacturer (electrode design, integration into industrial processes), polymer film industrial transformers (application on industrial quality films) and three well chosen university laboratories for their experience into corona discharge, pulse current generators and polymer surface analysis. With the results already obtained concerning the feasibility of the process, its strategical interest and the combination of competences and industrial motivations joined together, we are quite confident in the industrial success. Dziedzina nauki natural scienceschemical sciencespolymer sciencesengineering and technologymaterials engineeringcoating and filmsnatural scienceschemical sciencesinorganic chemistryhalogensengineering and technologyother engineering and technologiesfood technologyfood packagingnatural sciencesearth and related environmental sciencesatmospheric sciencesmeteorologyatmospheric pressure Program(-y) FP4-BRITE/EURAM 3 - Specific research and technological development programme in the field of industrial and materials technologies, 1994-1998 Temat(-y) 0201 - Materials engineering Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator L'AIR LIQUIDE SA Wkład UE Brak danych Adres Chemin de la Porte des Loges 1, Les Loges en Josa 78354 JOUY-EN-JOSAS Francja Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (5) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko BIOPHY RESEARCH SA Francja Wkład UE Brak danych Adres Village d'Entreprises de Saint Henri, 6 rue Anne G 13016 MARSEILLE Zobacz na mapie Koszt całkowity Brak danych Mactac Europe SA Belgia Wkład UE Brak danych Adres Boulevard Kennedy 7060 Soignies Zobacz na mapie Koszt całkowity Brak danych Softal Electr. Erik Blumenfeld GmbH &Co Niemcy Wkład UE Brak danych Adres 1,König-Georg-Stieg 21107 Hamburg Zobacz na mapie Koszt całkowity Brak danych Technische Universität Braunschweig Niemcy Wkład UE Brak danych Adres Westernwiese 38229 Salzgitter Zobacz na mapie Koszt całkowity Brak danych UNIVERSITE PAUL SABATIER DE TOULOUSE III Francja Wkład UE Brak danych Adres Route de Narbonne 118 31062 Toulouse Zobacz na mapie Koszt całkowity Brak danych