Paper packaging with increased resistance to liquids

Abstract

The subject of the application is a paper packaging comprising at least two walls in the form of sheets made of paper, which walls have an inner surface and an outer surface and are joined together to form a chamber for containing products, wherein the inner surfaces of the walls are directed towards the interior of the chamber, and the inner surface of the walls is hydrophilic and covered with at least two discontinuous layers of varnish, the first layer of which is a hydrophobic layer, which is characterized in that the first layer (2) is made as an arrangement of parallel lines, wherein the width of the lines of the first layer (2) is at least four times the spacing between the lines of the first layer (2), and the second layer (3) is made as an arrangement of at least partially continuous parallel lines, wherein the width of the lines of the second layer (3) is at least twice the spacing between the lines of the first layer (2),and the spacing between the lines of the second layer (3) is substantially equal to the spacing of the lines of the first layer (2), and the angle formed by the lines of the first layer (2) with the lines of the second layer (3) is an angle in the range of 15 to 35 angular degrees, and the spacing between the lines of the first layer (2) is at least three times the thickness of the sheet of paper (1), but not more than ten times this thickness.,