Oily Solid Cosmetic Composite Powder Lip Wrinkle Reduction
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Solution Overview
Problem
Conventional oily solid cosmetics, particularly lipsticks, do not effectively diminish vertical wrinkles on the skin, especially on the lips, and fail to maintain a glossy appearance over time.
Innovation Solution
A cosmetic formulation combining a plate-like composite powder presenting interference colors, a spherical composite powder with a specific refractive index coating, and a semi-solid oil component, which works together to reduce vertical wrinkles and maintain lip gloss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a spherical resin powder and a plate-like pearl agent are formulated in combination, then the modifying effect for diminishing roughness and the gloss provided by the pearl agent are balanced, but the overall modifying effect and gloss become inadequate
Solution Approach 1:
The patent uses a composite powder system consisting of spherical resin powder particles coated with a specific inorganic coating layer. This composite structure combines the modifying effect of the spherical resin powder with the gloss-providing properties of the inorganic coating, resolving the contradiction between roughness reduction and gloss maintenance.
Solution Approach 2:
The patent specifies precise parameter ranges for the inorganic coating layer (refractive index of 2.00 to 2.90, thickness of 1 to 100 nm) to optimize both the modifying effect and gloss. By controlling these parameters, the formulation achieves adequate gloss while maintaining the roughness-dimming capability.
2Ease of manufacture
If conventional pearl agents are used in oily solid cosmetics, then the cosmetic can be formulated, but the vertical wrinkles on the lip are not effectively diminished and the glossy appearance is not maintained over time
Solution Approach 1:
The patent employs a composite powder with specific properties (spherical shape, refractive index of the core particle, and inorganic coating layer) that provides both immediate wrinkle diminishing effect and long-lasting glossy appearance. The composite structure ensures the cosmetic maintains its effectiveness over time.
Solution Approach 2:
The patent controls specific parameters including the refractive index of the core particle (1.40 to 1.60), the refractive index of the inorganic coating layer (2.00 to 2.90), and the coating thickness (1 to 100 nm) to achieve both immediate and long-lasting cosmetic effects.
3Reliability
If plate-like pearl agents are used, then the cosmetic can be formulated with good gloss, but the vertical wrinkles on the lip are not effectively diminished
Solution Approach 1:
The patent employs spherical resin powder particles instead of flat plate-like particles. The spherical shape provides superior light scattering properties that simultaneously achieve both gloss and wrinkle diminishing effects, resolving the contradiction between these two functions.
Solution Approach 2:
The patent creates a composite structure where spherical resin powder is coated with an inorganic layer. This composite approach allows the spherical particles to provide both the modifying effect for wrinkles and the gloss through the inorganic coating, overcoming the limitations of using plate-like particles alone.
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 cosmetic effectively diminishes vertical wrinkles on the lips and maintains a glossy appearance for an extended period, addressing the inadequacies of conventional formulations.
Implementation Method 1
a plate-like composite powder presenting interference colors
Implementation Method 2
a spherical composite powder comprising a spherical powder having a refractive index of 1.40 to 1.60 whose surface is coated with a coating component having a refractive index of 2.00 to 2.90
Implementation Method 3
a powder presenting diffuse reflection of light thereon
Data Source
AI summary
An oily solid cosmetic is capable of effectively diminishing morphological problems, such as vertical wrinkles, in particular on the lip, over a long period of time. The present invention provides an oily solid cosmetic which contains: (A) a plate-like composite powder presenting interference colors, (B) a spherical composite powder wherein the surface of a spherical powder having a refractive index of 1.40 to 1.60 is coated with a coating component having a refractive index of 2.00 to 2.90, and (C) 1 to 40% by mass of a semi-solid oil component. Preferably, the cosmetic of the present invention further contains (D) heavy isoparaffin. The cosmetic of the present invention is capable of diminishing vertical wrinkles, in particular on the lip, over a long period of time, and of maintaining a glossy lip.