Nacre Particle Dispersion in Triphasic Cosmetic Compositions
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Solution Overview
Problem
Cosmetic compositions containing nacre particles face issues with agglomeration and adhesion to container walls when in an aqueous medium, leading to unsatisfactory application properties, freshness, and comfort over time, while oily phases can limit coloring effects and degrade sensory properties.
Innovation Solution
A cosmetic composition with a physiologically acceptable medium comprising an aqueous phase, an oily phase with lower density, and nacre particles coated with metal oxides, where the nacre particles are dispersed in the aqueous phase, preventing agglomeration and adhesion, and maintaining a triphasic structure at rest.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If nacres are dispersed in an aqueous phase, then the coloring effect is improved, but agglomeration occurs at rest
Solution Approach 1:
An oily phase is introduced as an intermediary component between the aqueous phase (containing nacres) and the container walls. This oily phase acts as a mediator that prevents direct contact between nacres and container walls, eliminating adhesion while allowing the aqueous phase to maintain its coloring function. The oily phase creates a physical barrier that stops nacre particles from aggregating on the container walls during storage.
Solution Approach 2:
The invention creates a composite cosmetic composition consisting of multiple phases: an aqueous phase with nacre particles for coloring, an oily phase for preventing adhesion and providing sensory properties, and potentially a third phase. This composite structure allows each component to fulfill its specific function without interfering negatively with the others, resolving the contradiction between coloring effect and prevention of agglomeration.
2Illumination intensity
If nacres are dispersed in an aqueous phase, then the visual appearance is improved, but adhesion to container walls occurs
Solution Approach 1:
The oily phase serves as a protective intermediary layer between the nacre particles and the container walls. This intermediate phase prevents direct adhesion by creating a physical barrier, while allowing the aqueous phase to maintain its visual appearance properties. The oily phase absorbs the harmful adhesion effect without compromising the aesthetic qualities of the nacre dispersion.
3Ease of operation
If a simple aqueous medium is used, then the sensory properties are improved, but agglomeration and adhesion occur
Solution Approach 1:
The invention merges the aqueous phase (providing sensory properties and nacre dispersion) with an oily phase (providing adhesion prevention and stability). This combination allows the composition to benefit from both phases: the aqueous phase maintains good sensory properties and nacre visibility, while the oily phase prevents agglomeration and adhesion to container walls, creating a synergistic effect that resolves the contradictions.
4Object-affected harmful factors
If an oily phase is used to disperse nacres, then adhesion is prevented, but the coloring effect is limited
Solution Approach 1:
The invention segments the cosmetic composition into distinct functional phases: an aqueous phase dedicated to nacre dispersion and coloring, and an oily phase dedicated to adhesion prevention and sensory properties. This segmentation allows each phase to optimize its specific function without compromising the other, as the nacre particles remain in the aqueous phase where they provide maximum coloring effect, while the oily phase independently prevents adhesion to container walls.
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 homogeneous product upon stirring, ensuring nacre particles remain in the liquid medium without adhering to container walls, providing improved application properties, freshness, and comfort over time while maintaining an attractive visual appearance.
Implementation Method 1
nacre particles, dispersed in the aqueous phase
Implementation Method 2
three visually distinct phases at rest: an aqueous phase, an oily phase with a density lower than that of the aqueous phase
Implementation Method 3
an oily phase with a density lower than that of the aqueous phase
Implementation Method 4
said nacre particles sedimenting in the aqueous phase without adhering to the walls of the container containing them
Data Source
AI summary
The present invention relates to a cosmetic composition comprising a physiologically acceptable medium containing an aqueous phase, an oily phase and nacre particles consisting of a substrate partially or totally coated with one or more layers.