Sealed single-dose paper package with improved break opening

A sealed single-dose package with a break opening, comprising:

• a multilayer semi-rigid sheet having a rear face and an opposite front face, the multilayer semi-rigid sheet comprising:
• a carrier layer having said rear face;
• a barrier layer adapted to provide a barrier against passage of gas and vapor;
• and
• final layer having said front face;
• a flexible sheet having an inner face and an outer face, superimposed on the multilayer semi-rigid sheet so that the inner face faces the front face, and welded to the front face of the multilayer semi-rigid sheet to form an inner pocket for containing one dose of a product;
• an outer incision extending along an incision direction, made in the rear face of the multilayer semi-rigid sheet, adapted to guide, upon a bending of the sealed single-dose package, a breakage of the multilayer semi-rigid sheet to form an opening for the product contained in the inner pocket to escape;
• and
• on the front face, at the inner pocket, an inner incision extending along the incision direction, wherein the inner incision does not indent the barrier layer, wherein
• the barrier layer has an interruption aligned with the outer incision, wherein the interruption partially follows a geometry of the inner incision, and wherein the carrier layer is made of paper, cardboard or other cellulose-based material.