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US 9,545,364 B2Granted
Dissolvable fibrous web structure article comprising active agents
AssigneeThe Procter & Gamble Company
InventorsRobert Wayne Glenn, Jr., Rajeev Chhabra, William Maxwell Allen, Jr., Jonathan Paul Brennan
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Abstract
The personal care compositions of the present invention are in the form of an Article comprising a dissolvable fibrous web structure. The fibers of the dissolvable fibrous web structure comprise a surfactant; a water soluble polymeric structurant; and a plasticizer. Additionally the ratio of the water soluble water soluble polymeric structurant to the active agent in the fiber is 3.5 or less.
Claims12
A method of making an article from a dissolvable fibrous web structure comprising the steps of:
- a. preparing a processing mixture comprising one or more active agents, wherein one or more of the active agents are surfactants comprising a sodium laureth sulfate, and one or more water soluble polymeric structurants, wherein the processing mixture has:
- i. from about 20% to about 60% solids;
- and
- ii. a viscosity of from about 5,000 centipoise to about 150,000 centipoise;
- b. fibrillating the processing mixture into fibers by a fluid film fibrillation process comprising a first pressurized gas stream directed against a liquid film of the processing mixture to form the fibers;
- c. at least partially drying the fibers of the processing mixture by a second pressurized gas stream;
- d. depositing the partially dry fibers on a surface to form a web of partially dry fibrous web structures;
- e. drying the partially dry fibrous web structure to a desired final moisture content;
- f. applying a surface resident coating;
- and
- g. cutting the fibrous web into one or more shapes to form the article.
8 more elements
Dependencies are inferred from the claim text.