Oscillating Brushhead for Shear-Thinning Makeup Removal
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Solution Overview
Problem
Conventional methods for removing facial makeup are time-consuming and often ineffective, requiring significant effort and varying in cleansing efficiency depending on the makeup remover's characteristics.
Innovation Solution
A brushhead with an oscillating action in the sonic frequency range is designed to operate with a non-Newtonian cosmetic composition, transforming from a solid, semi-solid, or gel to a liquid state, facilitating efficient makeup removal through shear thinning characteristics and energy coupling from a motor assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional methods (towelettes, wipes, or liquid makeup remover with cotton pads) are used to remove facial makeup, then the makeup can be removed from the skin, but the process is time-consuming and less effective
Solution Approach 1:
The brushhead operates with an oscillating action in the sonic frequency range, utilizing mechanical vibration to rapidly loosen and remove makeup from the skin. This vibration mechanism enables quick and effective makeup removal without requiring prolonged manual rubbing or multiple passes with conventional wipes.
Solution Approach 2:
The invention employs a non-Newtonian cosmetic composition that changes its rheological properties under shear stress. The composition transforms from a solid or semi-solid state during storage to a liquid state during application, enabling easy distribution and effective makeup removal while maintaining product stability before use.
2Ease of operation
If a solid, semi-solid, or gel non-Newtonian cosmetic composition is used in the brushhead, then the composition can be easily applied and distributed, but it requires transformation from solid to liquid state during operation
Solution Approach 1:
The non-Newtonian cosmetic composition undergoes parameter changes in its rheological properties, transforming from a solid or semi-solid state at rest to a liquid state under shear stress during brushhead oscillation. This allows the composition to remain stable during storage and application while becoming easily distributable during the makeup removal process.
Solution Approach 2:
The invention utilizes phase transition of the non-Newtonian cosmetic composition, where the material transitions from a solid or semi-solid phase to a liquid phase under the mechanical action of the oscillating brushhead. This phase transition enables the composition to be easily applied and distributed across the skin surface during operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The brushhead effectively and quickly removes facial makeup by converting a solid or semi-solid makeup remover into a liquid, enhancing the efficiency and convenience of the makeup removal process.
Implementation Method 1
an inner brushhead portion adapted to capture a solid, semi-solid or gel non-Newtonian cosmetic composition which has shear thinning characteristics
Data Source
AI summary
The brushhead includes a brushhead base member and at least one outer ring of bristles mounted thereto, the brush base member being non-oscillating. An inner assembly is adapted to capture a solid, semi-solid, gel or the like non-Newtonian balm element having shear thinning characteristics. In an embodiment, the inner assembly is adapted to receive energy from an oscillating action of the inner assembly produced by a motor in the appliance to which the brushhead is attachable. Oscillation of the inner portion at a target frequency and amplitude is sufficient to result in the solid, semi-solid, gel or the like balm element changing to a liquid in a shear thinning effect, the liquid being useful for removal of makeup.