DISSOLVABLE FIBROUS WEB STRUCTURE ARTICLE COMPRISING ACTIVE AGENTS
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.
1 . 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.
2 . The method of claim 1 , wherein the first and the second pressurized gas streams are heated.
3 . The method of claim 2 , wherein the second pressurized gas stream is a continuation of the first pressurized gas stream.
4 . The method of claim 3 , wherein the desired final moisture content is from about 1% to about 15% moisture.
5 . The method of claim 1 , wherein a significant number of fibers have an average diameter less than about 100 micrometer.
6 . The method of claim 5 , wherein a significant number of fibers have an average diameter less than about 10 micrometer.
7 . The method of claim 1 , wherein the viscosity of the processing mixture is from about 10,000 centipoise to about 125,000 centipoise.
8 . The method of claim 7 , wherein the viscosity of the processing mixture is from about 15,000 centipoise to about 100,000 centipoise.
9 . The method of claim 8 , wherein the viscosity of the processing mixture is from about 20,000 centipoise to about 75,000 centipoise.
10 . The method of claim 9 , wherein the viscosity of the processing mixture is from about 25,000 centipoise to about 60,000 centipoise.
11 . The method of claim 1 , wherein the % solids of the processing mixture is from about from about 20% to about 55% solids.
12 . The method of claim 11 , wherein the % solids of the processing mixture is from about from about 25% to about 50% solids.