Abstract: The invention relates to a method for applying capsules (1) to a plastic container (54) which is aseptically filled with a liquid and which is weld-sealed with a membrane (80). The capsule (1) to be applied, which preferably is constituted of two aluminum foils (2, 6) having a collar (58), is placed on the membrane (80) with a planar surface thereof and the collar is mechanically bent so that it is reliably secured to the container neck (50). The cap (100) is then pressed onto it so that the collar (58) is retained between the container neck (50) and the cap (100) in a form-and in a force-locking connection. The method according to the invention avoids the risk of the capsule being destroyed, which can happen during welding, and the risk of soiling, which can happen during gluing.

Abstract: In a plastic closure (1), preferably configured as a screw cap, a capsule having a chamber (3) is formed with a capsule wall (2), wherein said capsule is closed both by means of a flexible membrane (6) and by means of a film (4) which seals the chamber (3). An active ingredient B to be dispensed is accommodated in the chamber (3). The sealing film (4) can be destroyed or pushed away by means of a piercing member (7). The piercing member (7) is configured to be replaceable. As a result the plastic closure (1) itself can be produced as standard, and the piercing member (7) can be produced customer-specifically for the respective application. The connection between the piercing member (7) and the convex membrane (6) preferably takes place by means of a coupling part (8) which is formed on the lower face of the convex membrane and on which the piercing member (7) having a cup-shaped coupling attachment receptacle (74) can be fitted.

Abstract: A container with a corresponding bottle neck having a capsule inside of which a substance is placed that is to be released into the bottle contents. This invention avoids having to sterilize the contents again after the container has been aseptically filled, even though the substance in the capsule often does not endure these temperatures. Thus, this invention provides a method with the following steps: a) aseptic filling of the plastic bottle; b) welding a first membrane onto the container neck; c) placing the substance, which is to be released into the plastic bottle, on the first membrane that is already welded on; d) covering the substance, which is to be released, by a second membrane and welding the second membrane to the first membrane. Lastly, a closure with a secured tamper-evident layer is placed over the capsule and onto the bottle neck.