Printing Ink System For Printing On Polyamide-Based Food Casings, Printed Food Casings And Process For Their Production
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United States of America Patent
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Issued Date -
May 28, 2009
app pub date -
Nov 18, 2008
filing date -
Nov 22, 2007
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Abandoned
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Abstract
A one-ply or multi-ply food casing based on (co)polyamide, or which has an outer ply based on (co)polyamide, is disclosed that is printed with a printing ink cured by a free radical mechanism. The printing ink is printed on a layer of a base ink which also cures by a free radical mechanism. The base ink contains, in one and the same molecule, at least one group which can form a bond with the (co)polyamide surface, in particular an isocyanate group, and at least one ethylenically unsaturated group which can undergo a free radical polyaddition reaction, in particular a (meth)acrylate group. The print adheres firmly on the casing and is abrasion- and scratch-resistant, even without additional varnish.
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