Transparent Concealing Cosmetics Using Interference Pigments
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Solution Overview
Problem
Conventional makeup products that conceal skin flaws often appear thick, heavy, and unnatural due to high levels of opacifying pigments, failing to provide a natural, transparent look.
Innovation Solution
A topical composition combining a transparent component with a non-interference platelet component of specific light transmission and reflectance values, mimicking the effect of a one-way mirror to conceal blemishes while allowing clear skin to shine through, achieved by balancing light transmission and reflection properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high levels of opacifying pigments are used to conceal skin flaws, then the concealment effectiveness is improved, but the natural appearance of the skin is deteriorated
Solution Approach 1:
The patent applies optical interference pigments that change how light is reflected and absorbed. These pigments create optical illusions that camouflage skin imperfections through constructive and destructive interference patterns, rather than simply blocking light with opaque materials. This allows effective concealment while preserving the skin's natural light transmission and appearance.
Solution Approach 2:
The invention uses composite pigment systems combining interference pigments with other cosmetic materials. This composite approach enables the formulation to achieve both high concealment performance and natural skin appearance by leveraging the unique optical properties of interference pigments within a balanced cosmetic composition.
2Reliability
If opaque physical covering is applied to hide blemishes, then the concealment effectiveness is improved, but the transparency and lightness of the makeup is deteriorated
Solution Approach 1:
The patent replaces the mechanical approach of physically blocking light with opaque materials with an optical approach using interference phenomena. Instead of relying on mass and opacity to conceal flaws, the invention uses controlled light interference patterns created by specific pigment structures to achieve concealment with minimal material and maintained transparency.
Solution Approach 2:
Interference pigments alter the interaction of light with the makeup composition, creating wavelength-dependent reflection and transmission properties. This optical effect provides effective concealment while maintaining visual transparency, eliminating the need for thick, opaque layers of traditional pigments.
3Reliability
If traditional concealing methods are used, then the skin flaws are hidden, but the skin appears matte and uniform rather than natural and glowing
Solution Approach 1:
The interference pigments create dynamic optical effects that respond to viewing angles and lighting conditions, producing a luminous, glowing appearance rather than a flat, matte finish. The constructive interference patterns enhance light reflection in certain directions, creating a natural skin glow while the destructive interference patterns conceal imperfections.
Solution Approach 2:
The optical properties of the interference pigment formulation are dynamic rather than static, changing with viewing angle and lighting conditions. This dynamic behavior mimics the natural variability of healthy skin under different lighting, providing effective concealment while maintaining a lively, glowing appearance that adapts to environmental conditions.
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 effectively conceals skin blemishes while maintaining a natural, sheer appearance of unflawed skin, reducing the appearance of imperfections without altering the skin's natural tone.
Implementation Method 1
a non-interference platelet component having an average particle size of 25μ or less, the platelet exhibiting a light transmission value of about 20% to about 70%, and a light reflectance value of about 10% to about 20%
Implementation Method 2
the platelet exhibiting a light transmission value of about 20% to about 70%
Data Source
AI summary
The present invention relates to topical compositions comprising (a) a transparent component; and (b) a non-interference platelet component having an average particle size of 25μ or less, the platelet exhibiting a light transmission value of about 20% to about 70%, and a light reflectance value of about 10% to about 20%. The compositions are useful in providing effective but sheer concealment to skin flaws, without the necessity of using large amounts of metal oxide pigments.