Process for producting a water soluble package
OwnerPaul John Duffield, David Brian Edwardsinventors
Life of this patent
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Abstract
A process for producing a container containing a composition which comprises producing a pocket surrounded by a sealing portion in a film; coating the inside of the pocket but not the sealing portion with a coating; filling the pocket with the composition; placing a film on top of the filled pocket and across the sealing portion; and sealing the films together at the sealing portion.
Claims15
A process for producing a container containing a composition which comprises:
- a. producing a pocket surrounded by a sealing portion in a film;
- b. coating the inside of the pocket but not the sealing portion with a coating;
- c. filling the pocket with the composition;
- d. placing a film on top of the filled pocket and across the sealing portion;
- and
- e. sealing the films together at the sealing portion.
A process according to any one of the preceding claims wherein the pocket is formed by thermoforming the film.
A process according to any one of the preceding claims wherein the composition is a liquid composition.
A process according to any one of the preceding claims wherein the coating protects the film from the composition.
A process according to any one of the preceding claims wherein the coating protects the composition from the atmosphere.
A process according to any one of the preceding claims wherein the coating comprises a poly (vinyl alcohol), a cellulose derivative, poly (vinyl dichloride), polytetrafluoroethylene, gelatine, polyacrylate or polyvinylpyrrollidone.
A process according to any one of the preceding claims wherein the coating is applied in the form of a coating solution and dried prior to filling the pocket with the composition.
A process according to any one of the preceding claims wherein the composition is a fabric care, surface care or dishwashing composition.
Dependencies are inferred from the claim text.