Water Based Cosmetic Composition Viscosity Stickiness Balance
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Solution Overview
Problem
Existing cosmetic compositions struggle to achieve high viscosity without causing stickiness, which hinders even application and longevity of the cosmetic effect, especially in makeup products that require higher viscosity.
Innovation Solution
A water-based composition combining a crosslinked siloxane elastomer, lipophilic porous powder, and an aqueous medium, with a surfactant and optional polar oil component, to enhance viscosity while minimizing stickiness and maintaining long-lasting cosmetic effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a thickener is added or increased to increase viscosity, then viscosity is improved, but stickiness increases
Solution Approach 1:
The patent changes the chemical composition parameters by introducing specific components (crosslinked siloxane elastomer at 0.01-20%, lipophilic porous powder at 0.1-30%, and specific surfactants with HLB 9-17) to achieve the desired viscosity-stickiness balance. This compositional parameter adjustment allows the formulation to reach appropriate viscosity levels while suppressing stickiness through synergistic interactions between components.
Solution Approach 2:
The patent employs a composite material system combining crosslinked siloxane elastomer, lipophilic porous powder, and specific surfactants in a water-based formulation. This composite approach leverages the complementary properties of each component: the elastomer provides viscosity enhancement, the porous powder absorbs excess oil and reduces stickiness, and the surfactant ensures proper dispersion and stability, collectively achieving both high viscosity and low stickiness.
2Duration of action of stationary object
If viscosity is increased for makeup cosmetic performance, then application durability is improved, but even application becomes difficult
Solution Approach 1:
The patent optimizes the viscosity parameter to a specific range (10,000-100,000 mPa·s) that balances application performance and durability. This parameter optimization ensures the cosmetic is viscous enough to remain on the skin and provide long-lasting coverage, yet not so viscous that it becomes difficult to apply evenly.
Solution Approach 2:
The patent introduces surfactants (particularly poly oxyethylene-poly oxy alkylene alkyl ether block polymers with HLB 9-17) as intermediary substances that facilitate the dispersion and distribution of the viscous cosmetic formulation during application. These surfactants act as mediators between the high-viscosity base and the skin surface, enabling smooth and even application despite the elevated viscosity required for durability.
Data Source
AI summary
To provide a water based composition having an appropriate level of viscosity, which does not impart a sensation of stickiness, corrects unevenness such as pores, and has long lasting cosmetic effects. A water based composition includes an (A) crosslinked siloxane elastomer, a (B) lipophilic porous powder, and a (C) aqueous medium.