Porous, dissolvable solid substrates and surface resident starch perfume complexes
AssigneeThe Procter & Gamble Company
InventorsRobert Wayne Glenn, Jr., Kathleen Mary Kaufman, Virginia Tzung-Hwei Hutchins, Zerlina Guzdar Dubois
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Abstract
The present invention relates to personal care compositions, especially those personal care compositions in the form of a personal care article that is a porous dissolvable solid substrate. The porous dissolvable solid substrate has a surface resident coating comprising the starch perfume complex that can provide a consumer benefit.
Claims5
A method for making a personal care article, the method comprising applying a surface resident coating comprising a starch perfume complex in powdered form to a porous dissolvable solid substrate comprising from about 10% to about 75% by weight of the personal care article of a surfactant, from about 10% to about 50% by weight of the personal care article of a water-soluble polymer, and from about 1% to about 30% by weight of the personal care article of a plasticizer, wherein the porous dissolvable solid substrate comprises a percent open cell content from about 80% to about 100.0%.
A method for making a personal care article, the method comprising:
- (a) preparing a processing mixture comprising from about 5% to about 50% by weight of the personal care article of a surfactant, from about 5% to about 35% by weight of the personal care article of a water-soluble polymer, and from about 0.5% to about 20% by weight of the personal care article of a plasticizer;
- (b) aerating the processing mixture by introducing a gas into the processing mixture to form an aerated wet mixture;
- (c) forming the aerated wet mixture into one or more desired shapes;
- (d) drying the aerated wet mixture to form a porous dissolvable solid substrate having a percent open cell content from about 80% to about 100.0%;
- and
- (e) applying a surface resident coating comprising a starch perfume complex in powdered form to the porous dissolvable solid substrate.
Dependencies are inferred from the claim text.