Matte Foundation UV Filter System for Shine Control
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Solution Overview
Problem
Conventional matte foundations struggle to balance high sun protection factor (SPF) values with shine control, matte finish, and large depth and clarity of shade, as existing UV filter systems compromise these characteristics.
Innovation Solution
A cosmetic composition incorporating a mattifying filler, a specific UV filter system comprising organic and inorganic filters, and additional ingredients like hydrocarbon-based oils and emulsifiers, which provides a high SPF, shine control, and optical blurring effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a high level of organic UV filters is used to achieve higher SPF, then sun protection factor is improved, but refractive index becomes too high to provide shine control and matte finish
Solution Approach 1:
The patent changes the chemical parameters of the UV filter system by selecting specific organic UV filters with appropriate refractive indices and combining them with inorganic UV filters. This parameter optimization allows achieving high SPF while maintaining compatible refractive indices that support matte finish and shine control
Solution Approach 2:
The patent creates a composite UV filter system combining organic UV filters (such as ethylhexyl salicylate, homosalate, octyl salicylate) with inorganic UV filters (titanium dioxide, zinc oxide). This composite approach balances the high SPF capability of organic filters with the matte finish properties of inorganic filters, resolving the contradiction between sun protection and shine control
2Object-generated harmful factors
If a high level of inorganic UV filters is used, then shine control and matte finish are improved, but depth and clarity of shade are compromised
Solution Approach 1:
The patent optimizes the concentration parameters of inorganic UV filters, using them at controlled levels (typically 5-20% of total UV filter content) rather than high levels. This parameter control maintains matte finish benefits while minimizing the impact on color depth and clarity
Solution Approach 2:
The patent develops a composite UV filter system that combines inorganic UV filters with organic UV filters in specific ratios. This composite formulation reduces the reliance on high levels of inorganic filters, thereby preserving shade depth and clarity while maintaining shine control and matte finish properties
3Reliability
If conventional UV filter systems are used, then sun protection is provided, but the characteristics required for matte foundations (shine control, matte finish, depth and clarity of shade) are compromised
Solution Approach 1:
The patent develops a novel composite UV filter system combining specific organic UV filters (ethylhexyl salicylate, homosalate, octyl salicylate, octocrylene) with inorganic UV filters (titanium dioxide, zinc oxide) in optimized ratios. This composite system provides high SPF protection while maintaining refractive index compatibility with matte foundation characteristics, including shine control, matte finish, and color depth
Solution Approach 2:
The patent optimizes multiple parameters of the UV filter system including the chemical composition, concentration ratios, and physical properties of individual filters. These parameter changes enable the system to simultaneously achieve high sun protection factor and maintain the optical properties necessary for matte foundation performance
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 composition achieves a high SPF while maintaining a matte finish, controlling shine, and providing an optical blurring effect to minimize pore appearance, improving skin texture and reducing signs of aging over time.
Implementation Method 1
UV filter system consisting of an organic hydrophobic UV filter, an organic water-soluble UV filter, and an inorganic UV filter
Implementation Method 2
mattifying filler may consist of a silica aerogel and optionally a modified starch, amorphous silica, a clay, and/or a silicone elastomer
Implementation Method 3
The composition may be a water-in-oil emulsion
Data Source
AI summary
A cosmetic composition for providing a matte foundation may be provided, that includes a mattifying filler, a colorant, a hydrocarbon-based oil, a hydrocarbon-based emulsifier, water, and UV filter system consisting of an organic hydrophobic UV filter, an organic water-soluble UV filter, and an inorganic UV filter. The mattifying filler may consist of a silica aerogel and optionally a modified starch, amorphous silica, a clay, and/or a silicone elastomer. The organic hydrophobic UV filter may consist of octyl salicylate, and the cosmetic composition may be free of other organic hydrophobic ultraviolet filters. The organic water-soluble ultraviolet filter may consist of 2-phenylbenzimidazole-5-sulfonic acid (PBSA), and the cosmetic composition may be free of other organic water-soluble ultraviolet filters. The inorganic UV filter may consist of UV-grade titanium dioxide, and the cosmetic composition may be free of other inorganic ultraviolet filters.