A method for overmolding at least one line (40) comprises the steps: receiving the at least one line (40) in an opening (14) of a sealing element (10), wherein the opening (34) of the sealing element (10) is substantially complementary in shape to a peripheral geometry of the at least one line (40); mounting the sealing element (10) on a mold (30); overmolding the at least one line (40) received in the sealing element in a region (42) that is adjacent to the sealing element (10) and delimited by the sealing element (10); and removing from the mold (30) the sealing element (10) and the at least one line (40) received therein and overmolded in a region.

A film tensioning element is provided for dental applications with a film extending between tensioning rings. The film has a modulus of elasticity of less than 2 KN/mm.sup.2. The film is made of a tough plastic with a modulus of elasticity of more than 1 KN/mm.sup.2, in particular of PP, or optionally of PA. The film tensioning element is manufactured together with the tensioning rings.

An oral care implement comprises a head and a handle, the head being repeatedly attachable to and detachable from the handle. The head is made from a non-magnetic and/or non-ferromagnetic material, while the handle is at least partially made from a magnetic and/or ferromagnetic material.

A mould system for producing a tufted body having a curved outer surface, for example one hemispherical half of a spherical toothbrush head, the mould system comprising a mould form having a receptacle and an annular flange circumscribing an open end of the receptacle and at least one slot formed substantially radially in the flange and extending into a sidewall of the receptacle.

A toothbrush comprised at least one unitary brush head having a base and at least one filament and extending therefrom and having a free end terminating with a tip, wherein the filament has a length of from 6.0 mm to 20.0 mm between the base and the free end, and wherein the unitary brush head is made from a plastic material that has a melt flow rate of not greater than about 30 g/10 min measured in accordance with ISO 1133.

A toothbrush head, including at least one two-component cleaning element and at least one bristle tuft element, is produced by injection molding. To achieve high design flexibility regarding the arrangement of the two-component cleaning elements and regarding the material choice, the two-component cleaning elements are manufactured separately or in an upstream molding step. Then the two-component cleaning elements, together with the bristle tufts, are over-molded with plastic material, to form the brush head or a part thereof.

A mold insert has at least one filament cavity and a stack of at least a first and second insert plates, wherein the first plate has a front face that closely abuts a front face of the second insert plate. A portion of the a filament cavity is provided in at least one of the front faces of the first and second insert plates such that the filament cavity is open at a top surface of the mold insert but does not extend to a bottom surface of the mold insert. A venting cavity is provided in the same front face of the insert plate in which the portion of the at least one filament cavity is provided. The venting cavity, which is in air-conducting connection with the blind-hole end of the filament cavity, has a depth between 1 μm and 20 μm. A method of manufacturing the mold insert includes providing first and second insert plates, forming a portion of a filament cavity into at least one of the front faces of the insert plates, forming a venting cavity into the front face with the filament cavity, and bringing the front faces of the plates into close abutment to form a filament cavity.

A cosmetic applicator with a bristle carrier (9), which merges into a stem (12), by way of which the bristle carrier (9) is connected to a handle (13), or into a coupling portion (11) for connecting the bristle carrier (9) to such a stem (12), wherein the bristle carrier (9) carries a multiplicity of in each case single-piece bristles (1) of length (L) and is distinguished in that the bristles (1) consist of two halves (2, 3), which are axially symmetrical relative to one another and are displaced relative to one another, and connected in one piece to one another, along their axis of symmetry (4), wherein each of the halves (2, 3) forms a planar region (6) of the bristle (1), said planar region being located in the displacement plane (5).

A brush head (32) including: a supporting portion (42) of a brush neck (40); a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands having a proximal end (23) and a free end (25), wherein each of the plurality of bristle tufts comprises a proximal end head portion (26) melted into a first shape within a mold; and an elastomeric matrix (30) comprising at least a portion of the hard brush neck and the proximal end head portions, wherein the first shape of the proximal end head portion is configured to engage the elastomeric matrix such that the bristle tufts are retained within the elastomeric matrix.

An oral care implement comprises a head and a handle, the head being repeatedly attachable to and detachable from the handle. The head is made from a non-magnetic and/or non-ferromagnetic material, while the handle is at least partially made from a magnetic and/or ferromagnetic material.