Cryovac, Inc.

Marc Alan Edlein

David Ray Kyle

Ram Kumar Ramesh

Joe Milton Bowen

Mendy J Mossbrook

Milton Bowen

Jean-Luc Foureys

A printed antifog packaging film incorporates a cured reactive ink system or a cured reactive varnish system. The reactive ink system includes a radiation-cured ink or a cured thermoset ink. The reactive varnish system includes a radiation-cured varnish or a cured thermoset varnish. The cured reactive ink or varnish reduces the tendency of the antifog film to form a ghost condensate image of the printed image after the film has been unwound from a roll form and subjected to conditions that form moisture condensation on the film.

Printed antifog film

A packaged food product includes a food product and a package enclosing the food product. The package may be formed from a coated, printed film that includes a substrate film including one or more thermoplastic materials and having an average thickness of less than about 15 mils. An image is printed on the print side of the substrate film. A radiation-cured varnish covers the printed image. The radiation-cured varnish was formed by coating the printed image with a radiation-curable varnish that includes one or more polymerizable reactants and optionally one or more photointiators. The radiation-curable varnish is subsequently exposed to radiation sufficient to polymerize at least 90 weight % of the polymerizable reactants. When the coated, printed film is tested according to the FDA migration test protocol, no more than 50 parts per billion total of any of the polymerizable reactants and the optional photoinitiators migrate within 10 days at 40&#xb0; C. from the coated, printed film into a food simulant of 95 weight % ethanol and 5 weight % water enclosed within a test container formed from the coated, printed film so that the food simulant contacts the food side of the substrate film and the ratio of volume of food simulant to surface area of coated, printed film is 10 milliliters per square inch.

Printed thermoplastic film with radiation-cured overprint varnish

A printed antifog packaging film incorporates one or more organic acid esters of cellulose to reduce the tendency of the film to form a ghost condensate image of the printed image after the film has been unwound from a roll form and subjected to conditions that form moisture condensation on the film. The organic acid ester of cellulose may be incorporated in the ink that forms the printed image or may be incorporated in an overprint varnish covering the printed image.

Printed antifog film with cellulose ester ink or overprint varnish

A printed packaging material and a method for making the same is described. On a primary surface of a thermoplastic flexible packaging material is disposed a printed image. That image includes two primary components. The first is at least one marking containing a pigment. The second is a pigment-free coating which overlies the outermost marking. The coating is made from materials which can polymerize and/or crosslink when exposed to ionizing radiation. After the film is exposed to such radiation, the coating hardens to form a protective layer over the printed markings.

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Belton, SC, United States of America

Marc Alan Edlein