Process and Mould for Thermoforming Containers
AssigneeReckitt & Colman (Overseas) Limited
InventorsGeoffrey Robert Hammond, Richard Rogers
Life of this patent
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AssigneeReckitt & Colman (Overseas) Limited
InventorsGeoffrey Robert Hammond, Richard Rogers
Estimating the term…
A method of manufacturing water-soluble containers using a horizontal intermittent motion thermoforming machine comprises: a) locating a first water-soluble film over a mould, said mould containing a plurality of pocket forming cavities, defined by side walls and a base, in a 2-dimensional array, each cavity being surrounded by a planar surface of the mould on all sides; b) thermoforming the first film to produce a plurality of pockets; c) at least partially filling the pockets with a composition; and d) sealing the plurality of the at least partially filled pockets. The cavities are positioned in the array such that there are a plurality of continuous strips of uninterrupted planar surface of the mould from a leading to a trailing edge of the mould, for receiving support means fitted to the machine for supporting the film.
1-20. (canceled)
A mould for use in a thermoforming process for manufacturing water-soluble containers from water-soluble films, in which said mould contains a plurality of pocket forming cavities, defined by side walls and a base, in a 2-dimensional array, each cavity being surrounded by a planar surface of the mould on all sides in which the shortest dimension of the planar surface between two adjacent cavities is at least 3 mm and between an edge of the mould and the closest cavity is at least 1.5 mm, and in which the cavities are positioned in the array such that there are a plurality of continuous strips of uninterrupted planar surface of the mould from a leading to a trailing edge of the mould.
A container formed by the process of any one of the preceding claims.
Dependencies are inferred from the claim text.