Cellulosic Aerogel Cosmetic Composition for Stable Soft-Focus Coverage
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Solution Overview
Problem
Existing cosmetic compositions struggle to provide stable, environmentally friendly, and comfortable coverage of skin imperfections while avoiding issues like pilling, dryness, and greasiness, while meeting consumer demands for natural and eco-friendly products.
Innovation Solution
A composition comprising particulate cellulosic compounds, hydrophobic silica aerogel particles, and a wax of plant origin with a melting point above 25°C, preferably hydrogenated jojoba oil, which improves optical and sensory performance, stability, and reduces silicone and microplastic content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a large amount of soft-focus fillers is introduced into the composition to achieve satisfactory soft focus, then the soft-focus performance is improved, but the composition becomes destabilized and forms pills during application or after drying
Solution Approach 1:
The patent changes the physical and chemical parameters of the filler particles by introducing a specific size distribution (bimodal or multimodal distribution with particles ranging from 1 µm to 100 µm) and surface treatment (silane coating) to achieve both soft-focus performance and composition stability without pilling
Solution Approach 2:
The patent uses a composite filler system combining organic cellulosic particles (microcrystalline cellulose) with inorganic silane-treated particles, creating a synergistic effect that provides both optical diffusing properties and mechanical stability in the composition
2Manufacturing precision
If a large amount of soft-focus fillers is introduced into the composition to achieve satisfactory soft focus, then the soft-focus performance is improved, but the cosmetic properties deteriorate with dry effect and unpleasant sensation
Solution Approach 1:
The patent optimizes the particle size parameters and surface chemistry of the fillers to control light scattering while maintaining cosmetic comfort, using a bimodal distribution with fine particles (1-10 µm) for soft-focus and coarser particles (20-100 µm) for structural stability without dryness
Solution Approach 2:
The patent introduces silane-treated cellulosic particles as an intermediary that mediates between the optical requirements (soft-focus) and sensory requirements (cosmetic comfort), the silane treatment providing both optical diffusing properties and sensory smoothness
3Manufacturing precision
If alternative oily presentation forms are used to achieve soft-focus effect, then the soft-focus performance is improved, but the skin becomes shiny and greasy with stability problems
Solution Approach 1:
The patent changes the formulation from an oily continuous phase to an anhydrous or water-based system with solid particulate fillers, altering the physical state parameters to eliminate greasiness while maintaining soft-focus through controlled light scattering by the particle distribution
4Manufacturing precision
If crosslinked silicones are used to achieve matte effect and soft-focus effect, then the optical performance is improved, but the sensation becomes uncomfortable with warm and greasy feel
Solution Approach 1:
The patent extracts or removes silicone compounds from the formulation, replacing them with silane-treated cellulosic particles that provide similar optical diffusing properties without the characteristic warm and greasy sensory feel of silicones
Solution Approach 2:
The patent replaces long-lasting silicone compounds with biodegradable cellulosic particles that provide equivalent optical performance but with superior sensory properties and environmental compatibility
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 stable, homogeneous coverage of skin imperfections with a soft-focus effect, providing a radiant complexion and comfortable sensory properties without pilling or greasiness, aligning with consumer preferences for environmentally friendly products.
Implementation Method 1
the formulator uses therein diffusing fillers or else soft-focus fillers
Implementation Method 2
a composition comprising a particulate cellulosic compound, hydrophobic silica aerogel particles
Implementation Method 3
at least one wax of plant origin having a melting point of greater than 25°C
Implementation Method 4
hydrophobic silica aerogel particles
Data Source
AI summary
The present invention relates to a composition, especially cosmetic composition, in particular for caring for keratin materials, comprising: at least one particulate cellulosic compound; at least hydrophobic silica aerogel particles; and at least one wax of plant origin having a melting point of greater than 25°C. It also relates to a cosmetic process for caring for keratin materials comprising the application to the keratin materials of said composition.