Pore Hiding Cosmetic Composition Using Plate Fillers and Silicon Elastomers
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Solution Overview
Problem
Current fluid cosmetic compositions for pore hiding fail to maintain their effectiveness throughout the day due to sebum secretion, and there is a lack of formulations combining plate type fillers with high refractive index, silicon elastomers, and oil-absorbing fillers for long-lasting pore coverage.
Innovation Solution
A cosmetic composition comprising plate type fillers with a refractive index greater than 1.6, non-emulsifying silicon elastomers, and fillers with strong oil absorption capacity, which are applied to the skin to reduce pore visibility and maintain the effect throughout the day.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If pigments with strong light scattering and absorption are used to achieve pore hiding effect, then the brightness gap between skin ridges and pores decreases, but the pigments accumulate inside pores and enhance their visibility
Solution Approach 1:
The light scattering function is segmented between two types of fillers: plate type fillers (barium sulfate, boron nitride, bismuth oxychloride) for surface light scattering to reduce brightness gap, and spherical fillers for light diffusion. This segmentation prevents pigment accumulation in pores while maintaining pore hiding effect.
Solution Approach 2:
Silicon elastomers act as intermediaries that bind the fillers together and prevent their accumulation in pores. The elastomer matrix holds the fillers in place on the skin surface, preventing them from migrating into and accumulating within the pores.
2Reliability
If fluid formula with fillers is applied to achieve pore hiding effect, then the initial pore coverage is good, but sebum secretion during the day alters the optical effects
Solution Approach 1:
Different fillers are assigned different local functions: plate type fillers with high refractive index (RI>1.6) provide strong light scattering at the skin surface for immediate pore hiding, while oil-absorbing fillers are strategically placed to manage sebum in specific areas where it accumulates, maintaining the optical effect throughout the day.
Solution Approach 2:
The composition uses a composite filler system combining plate type fillers (barium sulfate, boron nitride, bismuth oxychloride) with spherical fillers (talc, silica, polyethylene) and oil-absorbing fillers. This composite approach provides both immediate pore hiding and long-lasting effect by addressing different mechanisms simultaneously.
3Illumination intensity
If plate type fillers with high refractive index are used to scatter light and hide pores, then the pore hiding effect is enhanced, but the formulation complexity increases
Solution Approach 1:
The patent specifies precise parameter ranges to optimize performance while managing complexity: plate type fillers with refractive index >1.6 and particle size 1-20 μm, silicon elastomer content 1-30%, and oil-absorbing filler content 0.1-20%. These parameter specifications provide clear formulation guidelines that balance performance with manufacturability.
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 decreases pore visibility and maintains the pore hiding effect for an extended period by utilizing plate type fillers with high refractive index, silicon elastomers for thickening, and oil-absorbing fillers to manage sebum, providing a soft and matte finish.
Implementation Method 1
Light scattering can decrease this brightness gap and may be achieved by mat and haze effect. Introduction of fillers with light scattering properties provides haze effect.
Implementation Method 2
A good balance between filler oil absorption capacity and non-volatile oil content provides mat effect. The composition includes fillers with strong oil absorption capacity to manage sebum.
Implementation Method 3
silicon elastomers for thickening, and oil-absorbing fillers to manage sebum, providing a soft and matte finish.
Data Source
AI summary
The invention relates to a cosmetic composition, in particular in the form of a liquid cosmetic composition, comprising in a physiological medium (i) at least a plate type filler with refractive index>1.6 and having a particle size between 1 μm and 20 μm, preferably between 1 μm and 15 μm, (ii) at least a silicon elastomer, preferably a non-emulsifying silicon elastomer, and (iii) at least a filler having an oil absorption capacity greater than or equal to 1 ml/g. The composition is preferably used as a skin care or make-up base or primer intended to decrease the visibility of skin imperfections, in particular the pores and make the pore hiding effect long lasting.