Break-Open Single-Dose Sealed Package with A Double Compartment and Method for the Production Thereof

A method for the production of a break-open single-dose sealed package (1);

• the production method comprising the steps of:
• setting on top of one another and welding along an annular weld (14) a first sheet (2) of semi-rigid plastic material and a second sheet (3) of flexible plastic material, so as to define a sealed pocket (4) containing a dose of a product (5);
• manufacturing a pre-weakened area (6), which develops transversely in a central area of the first sheet (2), so as to guide, following a folding of the sealed package (1), a controlled breaking of the first sheet (2) in the pre-weakened area (6), in order to cause the formation of an outlet opening for the product (5) through the first sheet (2);
• and
• making a central weld (17), which connects the second sheet (3) to the first sheet (2) and divides the pocket (4) into two distinct and separate chambers (15), which are insulated from one another and each contain a corresponding component (16) of the product (5);
• the production method is characterized in that:
• the annular weld (14) defining the pocket (4) has a greater mechanical resistance than the central weld (17) separating the two chambers (15);
• and
• the central weld (17) dividing the pocket (4) into the two chambers (15) is weak, so as to be broken, without breaking the annular weld (14) as well, by exerting a pressure on at least one of the two chambers (15), so as to be able to mix the two components (16) of the product (5) one with the other before folding the sealed package (1) and therefore before determining a controlled breaking of the first sheet (2) in the pre-weakened area (6).