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US 2022/0031579 A1Published application
Water-soluble fibrous pouch containing prills for hair care
AssigneeThe Procter & Gamble Company
InventorsJennifer Elaine Hilvert, Mark William Hamersky, Gemma Zoe Braganza, Eric Paul Granberg, Jorge Max Sunkel, Junichi Yokogi
Life of this patent
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Abstract
A water-soluble pouch for hair care with a water-soluble fibrous facing sheet and a water-soluble backing sheet. The facing sheet and backing sheet are joined by a seal along at least a portion of the perimeter. A plurality of hair conditioner prills are disposed within the internal volume. The prills can include both cationic surfactant and fatty alcohol and can have a melting point greater than 45°.
Claims18
A water-soluble pouch for hair care comprising:
- a. a water-soluble pouch defining an internal volume comprising:
- i. a water-soluble fibrous facing sheet comprising a perimeter, an outer surface, and an inner surface;
- and
- ii. a water-soluble fibrous backing sheet comprising a perimeter, an outer surface, and an inner surface;
- wherein the facing sheet and the backing sheet comprise a thermal seal joining the facing sheet to the backing sheet along at least a portion of the perimeters;
- wherein the fibrous structure comprises a plurality of two or more fibrous elements that are inter-entangled or otherwise associated with one another;
- wherein the fibrous elements comprise a polymeric structurant that is thermally sealable without the addition of an adhesive or other composition;
- wherein the outer surfaces and/or the inner surfaces of the facing and backing sheets comprise a plurality of bonding points;
- b. a plurality of prills within the internal volume comprising:
- i. from about 1% to about 60%, by weight of the prills, of a cationic surfactant selected from behentrimonium methosulfate, brassicamidopropyl dimethylamine, behentrimonium chloride, stearamidopropyl dimethylamine, and/or behenamidopropyl dimethylamine;
- ii. from about 10% to about 90%, by weight of the prills, of a fatty alcohol;
- wherein the prills comprise a melting point of greater than 45° C.
9 more elements
A water-soluble pouch for hair care comprising:
- a. a water-soluble fibrous pouch defining an internal volume;
- i. a water-soluble fibrous facing sheet comprising a perimeter, an outer surface, and an inner surface;
- and
- ii. a water-soluble fibrous backing sheet comprising a perimeter, an outer surface, and an inner surface;
- wherein the facing sheet and the backing sheet are sealed along the perimeters to form a pouch defining an internal volume;
- wherein the fibrous structure comprises a plurality of two or more fibrous elements that are inter-entangled or otherwise associated with one another;
- wherein the fibrous elements comprise a polymeric structurant selected from starch, cellulose, hemicellulose, polyvinyl alcohol, and mixtures and derivatives thereof;
- wherein the facing sheet and the backing sheet comprise a seal permanently joining the facing sheet to the backing sheet along at least a portion of the perimeters;
- wherein the facing sheet and the backing sheet are substantially free of apertures;
- b. a plurality of prills within the internal volume comprising:
- i. from about 1% to about 60%, by weight of the prills, of a cationic surfactant selected from behentrimonium methosulfate, brassicamidopropyl dimethylamine, behentrimonium chloride, stearamidopropyl dimethylamine, and/or behenamidopropyl dimethylamine;
- ii. from about 10% to about 90%, by weight of the prills, of a fatty alcohol;
- wherein the prills dissolve to form a gel network;
- wherein the pouch comprises a melting point of greater than 45° C.
11 more elements
A water-soluble pouch for hair care comprising:
- a. a water-soluble pouch defining an internal volume comprising:
- i. a water-soluble fibrous facing sheet comprising a perimeter, an outer surface, and an inner surface;
- and
- ii. a water-soluble fibrous backing sheet comprising a perimeter, an outer surface, and an inner surface;
- wherein the facing sheet and the backing sheet comprise a thermal seal joining the facing sheet to the backing sheet along at least a portion of the perimeters;
- wherein the fibrous structure comprises a plurality of two or more fibrous elements that are inter-entangled or otherwise associated with one another;
- wherein the fibrous elements comprise a polymeric structurant that is thermally sealable without the addition of an adhesive or other composition;
- wherein the outer surfaces and/or the inner surfaces of the facing and backing sheets comprise a plurality of bonding points;
- b. a plurality of prills within the internal volume comprising:
- i. from about 1% to about 60%, by weight of the prills, of an anionic surfactant;
- ii. optionally a zwitterionic co-surfactant selected from cocoamiodpropyl betaines, lauramidopropyl betaine, and combinations thereof;
- wherein the prills comprise a melting point of greater than 45° C.
9 more elements
Dependencies are inferred from the claim text.