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Directed high rate evaporation of metallic and transparent materials onto polymer films

Objective



Directed High Rate Evaporation of Metallic and Transparent Materials onto Polymer Films Directed Evaporation Main target is to develop a new, relatively simple evaporation technology for vacuum coating, based on specifically shaped radiation - heated porous sources with high directional characteristics, . compatible with various vacuum coating technologies, having significantly longer lifetimes than present boat evaporators, retrofittable into available equipment, for operation of present metallization coating processes at Iower cost and . for specific new processes without the high investment required e.g. for electron - gun evaporation sources, thus helping SME's to operate their existing equipment in a competitive way and to enter into new product fields. This technique is to be developed for 3 different kinds of evaporation coating materials: * Meltable, low boiling point metals, (such as Al, Cu) * Subliming metals (such as Cr) * Dielectrics, mainly oxides. The main future application field for this technology and coating materials will be roll-to-roll large area vacuum coating of films, especially for: * Packaqing films with evaporated barrier layers (metallic or transparent) * Decorative films * Films for technical applications, e.g. capacitor films, or films for safety applications. In this technical area, the following innovations are to be expected: * A better usage of evaporation material, less stray deposition residues, reduced cleaning effort and higher equipment up-time, as main effect. * Evaporation of other metals than Aluminum, e.g. Chromium, without the need for additional equipment for electron beam evaporation or flash evaporation. * Direct evaporation of dielectrics from inexpensive oxide mixtures, e.g. for transparent barrier layers for packaging films. * Position-independent evaporation sources for perpendicular to nearly horizontal directions, allowing for arranqements of several subsequent evaporation sources in substrate transport direction.

Funding Scheme

CRS - Cooperative research contracts

Coordinator

Gesellschaft für Wolfram Industrie mbH
Address
34,Permanederstraße
83278 Traunstein
Germany

Participants (9)

Alfa Roto SA - Flexible Packaging Materials
Greece
Address
2,Kapsorachi Street
12241 Athens
BOLLORE TECHNOLOGIES S.A.
France
Address
Odet
29551 Quimper
Ecoform GmbH
Germany
Address
Memminger Straße
88412 Ochsenhausen
FN Nuove Tecnologie e Servizi Avanzati SpA
Italy
Address
Ss 35 Dei Giovi Km 15
15062 Bosco Marengo
Fraunhofer-Gesellschaft zur Förderungder Angewandten Forschung e.V.
Germany
Address
Steinerstraße 15
81369 München
Hueck Folien Gesellschaft mbH
Austria
Address
Gewerbeparck
4342 Baumgartenberg
Stamp Foil Srl
Italy
Address
Via L. Da Vinci 41
51035 Lamporecchio
UNIVERSITY OF IOANNINA
Greece
Address
University Campus, Ioannina
45110 Ioannina
Ultimet Films Ltd.
United Kingdom
Address
16,Maurice Gaymer Road
NR17 2QZ Attleborough