Package closure and a method for producing a package closure

A method for producing a package closure having an axis, a neck, a cap and a folded portion connecting the neck and the cap, comprising the steps of

• a) by means of movable jaws, a counterpart, an outer first tool core part and an inner second tool core part forming the neck the cap and a foldable portion connecting the neck and cap in a single integrated piece, wherein an interior of the neck, an inward projecting sealing flange of the neck, an interior of the foldable portion and an interior of a wall of the cap are formed by the outer first tool core part, wherein an interior of a top portion of the cap and an interior of a sealing ring of the cap is formed by the inner second tool core part, and wherein a breakable notch and a hinge are formed between the top portion and the wall of the cap by the movable jaws and the outer tool core part,
• b) removing the jaws from the formed package closure,
• c) axially displacing the first tool core part in relation to the second tool core part, thereby disengaging the cap from the first tool core part while keeping the second tool core part engaged with the cap,
• d) displacing the neck axially in relation to the cap while folding the foldable portion to the folded portion through an inherent flexibility of the package closure, wherein the wall is brought to enclose a tubular portion of the neck and the sealing ring is engaging the sealing flange,
• e) displacing the package closure in relation to the second tool core part to disengage the package closure from the second tool core part.