HAIR PRODUCT WITH STABLE VISCOSITY
A composition of matter, a hair product formulation, comprising three polymer species, one or more polyols, an emulsifier, and water. The formulation balanced between viscosity increasing components and viscosity decreasing components such that the viscosity is stabilized. The emulsifier being used to tune the viscosity of the solution.
1 . A hair styling composition, comprising:
a combination of three polymers, comprising a total of 4 wt. % to 25 wt. %, the three polymers comprising:
1.2 wt. % to 15 wt. % of a first nonionic polymer;
0.3 wt. % to 5 wt. % of a vinylpyrrolidone dimethylamino propylacrylamide acrylate copolymer; and
1 wt. % to 10 wt. % of a cationic polymer;
1 wt. % to 20 wt. % of one or more polyols, wherein one of the one or more polyols has a greater affinity for water than at least one of the three polymers, and
0.05 wt. % to 1.2 wt. % emulsifier, wherein the emulsifier concentration is balanced stabilize a viscosity over a period of 2 to 6 weeks after mixing.
2 . The composition of claim 1 , wherein the polyols comprise sorbitol.
3 . The composition of claim 1 , wherein the first non-ionic polymer is polyvinylpyrrolidone.
4 . The composition of claim 1 , wherein volatile organic compounds (VOCs) comprise less than 2 wt. % of the composition.
5 . The composition of claim 1 , wherein the composition comprises multiple constituents that increase the viscosity of the composition over time.
6 . The composition of claim 5 , wherein the composition comprises multiple constituents that decrease the viscosity of the composition over time.
7 . The composition of claim 6 , wherein the contributions of the viscosity increasing and viscosity decreasing constituents are balanced at two weeks after mixing.
8 . The composition of claim 1 , further comprising a perfume.
9 . The composition of claim 1 , further comprising 65 to 85 wt. % water.
10 . The composition of claim 1 , wherein the emulsifier is a phosphate based emulsifier.
11 . A method of increasing viscosity in a formulation, the method comprising:
identifying a formulation, in which the formulation includes 4 wt. % to 25 wt. % hydrophilic polymers and 1 wt. % to 12 wt. % of one or more polyols;
increasing the concentration of an emulsifier in the formulation to produce a target viscosity.
12 . The method of claim 11 , in which the emulsifier is a phosphate based emulsifier.
13 . The method of claim 12 , further comprising assessing an impact of the emulsifier on the viscosity of the formulation for a range of emulsifier concentrations.
14 . The method of claim 13 , in which assessing the impact of the emulsifier on the viscosity of the formulation for a range of emulsifier concentrations is performed using rotational viscometry.
15 . The method of claim 14 in which the rotational viscometry is performed between 5 and 15 RPM.
16 . The method of claim 11 , in which the formulation further comprises a viscosity agent in the concentration of 0.02 to 2.0 wt. %.
17 . The method of claim 16 , in which the viscosity agent is hydroxyethylcellulose.
18 . A hair styling composition, comprising:
a combination of three polymers, comprising a total of less than 20 wt. % of the composition, the polymers comprising:
4 wt. % to 8 wt. % of polyvinylpyrrolidone;
3 wt. % to 5 wt. % of a vinylpyrrolidone dimethylamino propylacrylamide acrylate copolymer; and
0.5 wt. % to 3 wt. % of a cationic polymer;
5 wt. % to 10 wt. % of one or more polyols, wherein one of the one or more polyols has a greater affinity for water than at least one of the three polymers, and
0.1 wt. % to 1.4 wt. % emulsifier, where the viscosity of the product at 6 weeks after mixing and storage at room temperature is less than 250,000 cSt as measured using rotational viscometry at 10 RPM.
19 . The composition of claim 18 , in which the one or more polyols comprise 6 wt. % to 8 wt. % of the composition.
20 . The composition of claim 9 , in which the one or more polyols comprise sorbitol.