Perfume Prolonger Viscous Solvent Fixative Composition
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Solution Overview
Problem
Existing perfume formulations have limited longevity due to the rapid evaporation of fragrance ingredients, leading to a short-lasting effect that requires frequent reapplication.
Innovation Solution
A non-scented composition comprising at least 50% of a viscous, low-volatility solvent and a musk substance is applied separately to the skin or substrate, enhancing the longevity and intensity of the perfume without altering its character.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a perfume formulation uses light and delicate fragrance ingredients, then the fragrance character is fresh and light, but the longevity is reduced
Solution Approach 1:
The patent introduces a fixative composition as an intermediary substance applied to the skin before the perfume. This mediator contains high-boiling-point ingredients that form a base layer, allowing the light and delicate perfume to be released gradually over time without compromising its fresh character, thus resolving the contradiction between fragrance lightness and longevity
Solution Approach 2:
The fixative composition is applied to the skin in advance before the perfume application. This preliminary action creates a preparatory base that controls subsequent perfume evaporation, enabling the light fragrance to persist longer without requiring the perfume itself to be heavy or tenacious
2Duration of action of moving object
If fixatives are added to increase perfume longevity, then the evaporation rate is reduced, but the fixative's own odour becomes noticeable
Solution Approach 1:
The patent applies the fixative composition to a specific location (the skin) as a separate preparatory layer, rather than mixing it with the perfume formulation itself. This spatial separation allows the fixative to perform its function of slowing evaporation while its odour remains distinct and can be controlled independently, preventing it from interfering with the perfume's character
Solution Approach 2:
The patent divides the fragrance system into two separate components: the perfume formulation and the fixative composition. This segmentation allows each component to be optimized independently - the perfume maintains its desired character while the fixative provides longevity enhancement without its odour contaminating the perfume blend
3Speed
If fragrance ingredients with high volatility are used, then the initial impression is fresh and light, but the rate of evaporation is too fast
Solution Approach 1:
The fixative composition acts as a mediator between the high-volatility fragrance ingredients and the skin. It provides a base layer that modulates the release rate, allowing the volatile ingredients to evaporate quickly initially for a fresh impression, then slowing down to extend longevity without requiring the fragrance ingredients themselves to have low volatility
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 significantly increases the longevity of the perfume by at least 25% after five hours, maintaining the fragrance's intensity and perception, while being compatible with any perfume formulation.
Implementation Method 1
the relative volatility of fragrance ingredients will determine the tenacity and therefore the rate of evaporation and the release of the fragrance
Implementation Method 2
Aromatic materials are used having various volatilities which, for practical purposes are split into three main groups known as top notes, middle notes and base notes
Implementation Method 3
Previous attempts to increase longevity of a perfume have involved adding so-called fixatives to the fragrance formulation, which slow the evaporation of the mixture from skin and other substrates
Data Source
AI summary
A composition for application to the skin or other substrate, which acts in conjunction with any perfume product, to extend the longevity of a fragrance, compared to the perfume in the absence of the composition. In particular, the composition contains a musk substance and at least 50% of a non-scented, viscous, low-volatility, solvent for perfume ingredients.