Surface printing inks and coatings for use
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United States of America Patent
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Apr 15, 2003
Grant Date -
N/A
app pub date -
Dec 7, 1999
filing date -
Dec 7, 1999
priority date (Note) -
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Abstract
This invention relates to non-aqueous coating and ink formulations for use on flexible film or paper packages for food, which require aseptic packaging conditions. The printed and coated packaging materials, and methods of aseptic packaging, as well as the aseptic packages are also disclosed. The coating formulation comprises the following components: 1) a mixing varnish comprising a phenolic-modified co-solvent-type polyamide resin, 2) a nitrocellulose compound varnish, 3) a non-aqueous solvent mixture, and 4) specialty additives, and wherein all components present in the formulation are stable in the presence of an oxidizing agent. The ink formulation comprises the following components: 1) a mixing varnish comprising a phenolic-modified co-solvent-type polyamide resin, 2) a nitrocellulose compound varnish, 3) a non-aqueous solvent mixture, 4) a non-aqueous solution of a metal salt of propionic acid and 5) specialty additives, and wherein all components present in the formulation are stable in the presence of an oxidizing agent.
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