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14: Finishing & Laminating : 


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Jet USA - Americas Photopolymer Specialists - ADA phenolic series

 
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flute lines
Posted by: rycckg (---.109.251.26.static.dejazzd.com)
Date: July 09, 2009 11:11AM

Hello.. We are a direct UV printer of corrugated cardboard boxes. We are having a large problem when it comes to laminating films over solid areas of print. What appears to be occurring is that the film is lifting off of the valleys of the flutes that are common with corrugated cardboard. I have tried vinyl cold set films and heat activated polyester films. We operate a Seal Image 40". Any help would be greatly appreciated..

Re: flute lines
Posted by: lamexpert (12.49.193.---)
Date: July 20, 2009 11:42PM

Most likely you will have to abandon film lamination altogether for this process. UV curable inks have a very low surface energy and require something with even lower energy to bond properly. On top of that you have a corrugated surface and utilizing a technology designed for flat, consistent surfaces. In effect if you achieve any bond at all it is on the high points of the corrugation. The "valleys" are receiving little to no dwell time or pressure to properly wet out the adhesive. You would get better results from a UV coater. There are exceptions to this, albeit very few exceptions.



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RENOLIT Calendered Vinyl - Top performance for various applications

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