ALUMINUM FOIL LIDDING AND METHOD OF MAKING THE SAME
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United States of America
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Issued Date -
Nov 28, 2024
app pub date -
Sep 20, 2022
filing date -
Sep 20, 2022
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Abstract
The present invention relates to an aluminium lidding foil for blister pack comprising a) a layer of aluminum foil, b) a layer of adhesive, c) and a layer of thin polymer film. The adhesive which is a solvent free adhesive is applied in between the aluminium foil layer and the thin polymer film layer. The outer surface of the aluminium foil is used for printing product details. The inner surface of the polymer film facing the aluminium foil can also be used for printing using any inks including anti-counterfeit ink. The polymer layer laminated to the inner surface of the aluminium foil acts as a barrier and prevents direct contact of printing ink with medicines/confectionery products packed in the blister pack. The thin polymer film eliminates possibility of chemical contamination into the product and the problem of residual solvents in present heat seal lacquer coated blister lidding foil.
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