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5. Extrusion-coating
This involves coating a substrate (paper, aluminum, etc.) by extruding a layer of molten polymer with subsequent heat-sealing properties.
Thanks to their excellent adhesion to paper, cardboard, aluminum and many other polymers, ethylene-acrylic ester copolymers are ideal for use either as binders or as sealing layers in extrusion-coating and co-coating processes.
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These qualities offer the following advantages:
excellent stretchability ;
very good adhesion to a wide range of substrates, including aggressive food products;
good adhesion to inks ;
Suitable for mixing with polyethylene in all proportions ;
excellent welding properties (weldability...
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Extrusion-coating
Bibliography
Regulations
Food grading
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Europe
Commission Directive 2002/72/EC of August 6, 2002 relating to plastic materials and articles intended to come into contact with foodstuffs.
Council Directive 82/711/EEC of 18 October 1982 laying down the basic rules...
Standardization
▪ French Association for Standardization (Afnor)
• Adhesives
- Hot melt adhesives – Determination of thermal stability. - ISO 10363 - (12-1992)
- Packaging materials and systems for medical devices requiring sterilization – Part 10: adhesive-coated polyolefin nonwovens for the manufacture of pouches and heat-sealable...
Machine builders and suppliers
(non-exhaustive list)
Aucouturier SA
Bachofen und Meier AG http://www.bmag.ch
Black BrothersEfcol SARL (Pafra)
BOBST SA http://www.bobst.ch
Bosch (Allemagne)...
Manufacturers of packaging adhesives
(non-exhaustive list)
3M France (ruban adhésif) http://www.3m.com
Alquier Colles et gélatines
ATOFINA http://www.atofina.com
Organizations (inspection, testing, research, etc.)
AFERA – Association des fabricants européens de rubans auto-adhésifs http://www.afera.com
BVT Bureau de vérifications techniques
Chambre syndicale des fabricants de sacs en papier
COPACEL – Confédération française de l'industrie des papiers, cartons,...
Training
CREACOL http://www.creacol.fr
ITECH – Écoles spécialisées en science des polymères et applications de ces polymères
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