A method for the manufacturing of a polymer product with super- or highly hydrophobic characteristics, a product obtainable from said method and use thereof

摘要

A method for manufacturing a polymer coated paper or board product, for example those used in the food processing industry, wherein the product has super- or highly hydrophobic characteristics, making it easy to empty dairy packages, reduce foaming during conveying soft drinks or beer into a cup and creating a nice touch surface. The method comprises the following steps of providing a melt of polymer and a web of paper or board, coating the web of paper or board directly with the melt of polymer to create a polymer coated web; passing the polymer coated web over a roll, whereby the roll faces a polymer coated side of the polymer coated web and wherein the roll has a mould giving the polymer coated side a pattern providing a Lotus effect, which improves the hand-feel and resistance to liquids of the product, when in contact with the polymer coated side of the polymer coated web; and cooling the polymer coated paper or board product.