Sealed single-dose package with break opening

A sealed single-dose package comprising

• a multi-layer semi-rigid sheet having a rear face and a front face opposite to the rear face, and
• a flexible sheet having an inner face and an outer face, the flexible sheet overlapping the multi-layer semi-rigid sheet so that the inner face faces the front face and is welded to the front face to form an inner pocket for containing one dose of a product,
• wherein an outer incision extending along an incision direction is provided on the rear face of the multi-layer semi-rigid sheet, at the inner pocket, and an inner incision is provided on the front face;
• wherein the multi-layer semi-rigid sheet comprises
• a supporting layer having said rear face made of paper, cardboard, or other cellulose-based material, and wherein the outer incision has a depth and extends exclusively through said supporting layer of the multi-layer semi-rigid sheet,
• a barrier layer suitable for providing a barrier against the passage of gas, and
• a final layer having said front face, comprising polyethylene or polypropylene or a solder varnish or other material suitable for being welded to the flexible sheet;
• wherein the flexible sheet comprises
• an outer layer having said outer face made of paper, cardboard, or other predominantly cellulose-based material, and
• an inner layer having said inner face, comprising polyethylene or polypropylene or a solder varnish or other material suitable for being welded to the multi-layer semi-rigid sheet,
• wherein the rear face has a plurality of secondary outer incisions arranged along the incision direction, on both sides of the outer incision, and wherein the paper, cardboard, or predominantly cellulose-based material forms at least 60% by weight of a weight of the sealed single-dose package.