Process for producing a water soluble package
AssigneeUnilever Home & Personal Care, Division of Conopco, Inc.
InventorRichard Harbour
Life of this patent
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Abstract
A process for producing a thermoformed package comprises the steps of placing a first sheet of film over a forming die having at least one cavity, heating the film to mould the film into the at least one cavity thereby forming at least one recess in the film, placing a composition in the at least one formed recess, and sealing a second sheet of film across the at least one formed recess to produce at least one closed package. Once formed, the or each recess is substantially retained in its formed orientation by the application of a vacuum through the or each cavity.
Claims3
A process for producing a thermoformed package comprising the steps of:
- placing a first sheet of film over a forming die having at least one forming cavity;
- heating the film;
- moulding the film into the at least one cavity thereby forming at least one recess in the film;
- placing a detergent or personal care composition in the form of a liquid or gel in the at least one formed recess;
- and
- sealing a second sheet of film across the at least one formed recess to produce at least one closed package, the process being characterized in that, once formed, the or each recess is substantially retained in its formed orientation by the application of a vacuum through the or each cavity, which vacuum is maintained at least until completion of the sealing step.
Dependencies are inferred from the claim text.