Water-soluble film article having salt layer, and method of making the same

Water-soluble articles such as films, which can be made resistant to contact with small amounts of water, and methods of making the same are disclosed. The water-soluble article is formed from a water-soluble film-forming composition, such as polyvinyl alcohol, and includes a salt that is distribute...

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Bibliographische Detailangaben
Hauptverfasser: VERRALL ANDREW P, FRIEDRICH STEVEN G
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Water-soluble articles such as films, which can be made resistant to contact with small amounts of water, and methods of making the same are disclosed. The water-soluble article is formed from a water-soluble film-forming composition, such as polyvinyl alcohol, and includes a salt that is distributed more closely to at least one of the surfaces than throughout its thickness.