Method for producing metallized paper or flexible substrate, coated flexible substrate having matt, semi-sheen or sheen metallized appearance, and, aqueous solution
AssigneeSchweitzer-Mauduit Do Brasil S.A.
InventorAntonio Cunha
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Abstract
The present invention relates to a process for producing flexible substrates having metallized appearance for application in the field of packaging by way of a method for direct coating of the substrate that the user wishes to metallize, using coating application devices usually used by the paper industry, to apply an aqueous-base solution mainly comprised of polymers and fine particles of metal which, once dried, give the substrate sheen and metallic appearance. The product of this invention can be used as a substitute for paper metallized by vacuum or by lamination particularly in applications where the prime attribute of packaging is the visual aspect.
Claims13
Method for producing metallized paper or flexible substrate, characterized by the application, directly on a substrate, of an aqueous-base solution containing polymers having the function of ligants and metallic pigments, the polymers being chosen from among acrylic, styrene/acrylic or styrene/butadiene polymers, the metallic pigments being constituted of fine particles of metal chosen from among aluminum, bronze, zinc, silver and mixture thereof, so that the quantities of metallic pigments do not exceed 35 parts of metallic pigment per 100 parts of polymers.
Coated flexible substrate having matt, semi-sheen or sheen metallized appearance, characterized by the fact that it comprises a flexible base substrate coated with an aqueous-base solution containing polymers having the function of ligants and metallic pigments, the polymers being chosen from among acrylic polymers, styrene/acrylic or styrene/butadiene, the metallic pigments being constituted of fine particles of metal chosen from among aluminum, bronze, zinc, silver and mixture thereof, so that the quantities of metallic pigments do not exceed 35 parts of metallic pigment per 100 parts of polymers.
Aqueous-base solution, characterized by the fact that it comprises polymers having the function of ligants and metallic pigments, the polymers being chosen from among acrylic polymers, styrene/acrylic or styrene/butadiene, the metallic pigments being constituted of fine particles of metal chosen from among aluminum, bronze, zinc, silver and mixture thereof, so that the quantities of metallic pigments do not exceed 35 parts of metallic pigment per 100 parts of polymers.
Dependencies are inferred from the claim text.