Expanded Perlite Fragrance Tenacity and Abrasiveness
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Solution Overview
Problem
Existing fragrance products face challenges in maintaining tenacity and comfort due to the abrasive nature of unexpanded perlite, which is difficult to formulate in sprays and aerosols, and does not provide satisfactory sensory cosmetic results.
Innovation Solution
Incorporating expanded amorphous mineral materials, such as perlite particles, in a cosmetically acceptable medium with at least 0.3% by weight of scenting substances to enhance fragrance tenacity and ease of formulation in various cosmetic products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If unexpanded perlite is used to enhance fragrance tenacity, then the fragrance persistence is improved, but the material becomes highly abrasive and difficult to formulate in sprays and aerosols
Solution Approach 1:
The patent applies thermal expansion to perlite particles, transforming them from unexpanded to expanded state. This parameter change fundamentally alters the material properties: the expanded perlite retains the fragrance tenacity benefits while eliminating the high abrasiveness of unexpanded perlite, making it suitable for cosmetic formulations including sprays and aerosols.
Solution Approach 2:
The invention utilizes the phase transition of perlite during thermal expansion, where the material undergoes a structural transformation that changes its physical properties. The expanded perlite maintains the pore structure necessary for fragrance retention while becoming less abrasive, thus resolving the contradiction between fragrance persistence and consumer comfort.
2Duration of action of moving object
If unexpanded perlite is used to increase fragrance tenacity, then the base note persistence is improved, but the formulation complexity increases due to difficulty in sprays and aerosols
Solution Approach 1:
By changing the physical state of perlite from unexpanded to expanded through thermal processing, the invention simplifies formulation complexity. The expanded perlite particles are easier to disperse and incorporate into spray and aerosol formulations while maintaining the desired base note persistence, thus reducing formulation complexity without sacrificing fragrance tenacity.
3Duration of action of moving object
If unexpanded perlite is used to enhance fragrance tenacity, then the persistence is improved, but the sensory cosmetic results are unsatisfactory
Solution Approach 1:
The thermal expansion process fundamentally changes the physical parameters of perlite, transforming it from a highly abrasive material to an expanded form with reduced abrasiveness. This parameter change enables satisfactory sensory cosmetic results while preserving the fragrance tenacity enhancement, making the product comfortable for consumer use.
Data Source
AI summary
The subject-matter of the invention is a cosmetic method for scenting a human keratinous substance which consists in applying, to the said substance, a scenting composition comprising, in a cosmetically acceptable medium, at least 0.3% by weight of at least one scenting substance and at least particles of an expanded amorphous mineral material and in particular of an expanded amorphous mineral material resulting from at least one volcanic rock and more particularly expanded perlite particles.Another subject-matter of the present invention is a cosmetic method for treating human body odors, in particular axillary odors, which consists in applying, to the surface of the skin, an effective amount of the said composition.The invention relates to specific scenting compositions comprising, in a cosmetically acceptable medium:a) at least 0.3% by weight, with respect to the total weight of the composition, of a scenting substance;b) at least the said particles.