Abstract: A sealed single-dose break-open package having: a first sheet of semi-rigid plastic material; a second sheet of flexible plastic material superposed on and sealed to the first sheet to define a sealed pocket that contains a dose of a product; and a weakened zone that is made in a central zone of the first sheet for guiding, after bending of the sealed package, controlled breaking of the first sheet at the weakened zone in such a way as to cause the formation of an outlet opening for the product through the first sheet. The weakened zone comprises at least one incision that is made in a surface of the first sheet and extends along a single line that is open and does not cross itself. The incision comprises a “U”-shaped central part and two lateral parts that are positioned on opposite sides of the central part and connect to the central part.

Abstract: A sealed single-dose break-open package having: a first sheet of semi-rigid plastic material; a second sheet of flexible plastic material superposed on and sealed to the first sheet to define a sealed pocket that contains a dose of a product; and a weakened zone that is made in a central zone of the first sheet for guiding, after bending of the sealed package, controlled breaking of the first sheet at the weakened zone in such a way as to cause the formation of an outlet opening for the product through the first sheet. The weakened zone comprises at least one incision that is made in a surface of the first sheet and extends along a single line that is open and does not cross itself. The incision comprises a “U”-shaped central part and two lateral parts that are positioned on opposite sides of the central part and connect to the central part.

Abstract: A production method of a sealed single-dose break-open package; wherein the package comprises: a first sheet of semi-rigid plastic; a second sheet of flexible plastic superposed on and sealed to the first sheet to define a sealed pocket that contains a dose of a product; and a weakened zone made in a central zone of the first sheet for guiding, after bending of the package, controlled breaking of the first sheet at the weakened zone to cause formation of an outlet opening for the product through the first sheet; the method includes making in a surface (8, 10) of the first sheet an incision that constitutes the weakened zone; wherein the incision is made through plastic deformation of the material using an incision tool having a tip that is not sharp, that is, that has a round shape for deforming rather than cutting.