Abstract: A cap of the press-twist type for a container, includes: a metal capsule having a transversal wall of longest extension which extends transversely with respect to an axis of the container, and a lateral wall; a curling in the distal part with respect to the transversal wall of the lateral wall by means of a curling operation; a sealing gasket with an annular shape for engaging with an opening of the container. The sealing gasket is made of a PVC-free material and includes a lateral portion, positioned in contact with the lateral wall of the capsule, which includes two portions away from the transversal wall of the capsule: a first distal portion relative to the transversal wall of the capsule and a second proximal portion relative to the transversal wall of the capsule, with a thickness greater than the first distal portion.

Abstract: A metal closure for containers comprising a capsule designed to be applied to an opening of a container and including a circular part from which extends a perimeter edge. The perimeter of the edge has a rounding or folding obtained by curling and has a series of deformations made in a radial direction towards the centre of the capsule for forming the seal.

Abstract: A closure element of the press-twist type for closing a container comprises: a capsule having a side wall extending about an axis, and a transverse panel extending transversely to said axis, an annular seal for sealingly engaging with a mouth of the container. The annular seal is made of a PVC-free material and comprises: a side portion arranged in contact with the side wall of the capsule; a front portion extending from the side portion towards said axis; a deformability promoting element for increasing deformability of the front portion, the deformability promoting element comprising a recessed zone configured to be at least partially filled by the material forming the front portion when the front portion is pressed against an edge of the container delimiting the mouth.

Abstract: A cap of the press-twist type for a container, includes: a metal capsule having a transversal wall of longest extension which extends transversely with respect to an axis of the container, and a lateral wall; a curling in the distal part with respect to the transversal wall of the lateral wall by means of a curling operation; a sealing gasket with an annular shape for engaging with an opening of the container. The sealing gasket is made of a PVC-free material and includes a lateral portion, positioned in contact with the lateral wall of the capsule, which includes two portions away from the transversal wall of the capsule: a first distal portion relative to the transversal wall of the capsule and a second proximal portion relative to the transversal wall of the capsule, with a thickness greater than the first distal portion.

Abstract: A metal closure for containers comprising a capsule designed to be applied to an opening of a container and including a circular part from which extends a perimeter edge. The perimeter of the edge has a rounding or folding obtained by curling and has a series of deformations made in a radial direction towards the centre of the capsule for forming the seal.

Abstract: A closure element of the press-twist type for closing a container comprises: a capsule having a side wall extending about an axis, and a transverse panel extending transversely to said axis, an annular seal for sealingly engaging with a mouth of the container. The annular seal is made of a PVC-free material and comprises: a side portion arranged in contact with the side wall of the capsule; a front portion extending from the side portion towards said axis; a deformability promoting element for increasing deformability of the front portion, the deformability promoting element comprising a recessed zone configured to be at least partially filled by the material forming the front portion when the front portion is pressed against an edge of the container delimiting the mouth.