Fragrance Composition Volatility Management for Odour Differentiation
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Solution Overview
Problem
Existing perfumed products fail to provide perceptibly different odour characteristics when transitioning from wet to dry conditions, leading to consumer fatigue and habituation, as the perception of perfume typically decreases with evaporation, and existing solutions involve the use of microcapsules which can affect product appearance and are not always desired.
Innovation Solution
A fragrance composition comprising three groups of ingredients with specific equilibrium headspace concentrations: Group A (highly volatile), Group B (intermediate), and Group C (low volatile), where Group B and Group C have mutually opposing odour characteristics, ensuring different odour perceptions under wet and dry conditions without encapsulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If microcapsules are used to release high performance odourants at different moments, then the odour benefit is enhanced, but the product appearance is degraded and visibility issues occur
Solution Approach 1:
The patent extracts the fragrance ingredients from microcapsule structures and incorporates them directly into the liquid composition. The composition contains specific fragrance ingredients (2-phenylethyl acetate, linalool, geraniol, citronellol, benzyl alcohol, eugenol, vanillin, cinnamaldehyde, limonene, linalyl acetate, geranyl acetate, citronellyl acetate, benzoic acid, salicylic acid, and caffeine) that provide different odour characteristics at wet and dry stages without requiring encapsulation structures.
Solution Approach 2:
The patent changes the volatility parameters of the fragrance ingredients to achieve the desired effect. By selecting ingredients with specific volatility ranges (high, intermediate, and low volatility), the composition maintains consistent odour intensity while providing perceptibly different odour characteristics between wet and dry stages, eliminating the need for microcapsules.
2Ease of manufacture
If conventional fragrance compositions are used, then the product is simple to manufacture, but consumer fatigue and habituation occur due to decreasing odour perception
Solution Approach 1:
The patent changes the volatility distribution parameters of the fragrance composition. It includes high volatility ingredients (2-phenylethyl acetate, linalool, geraniol, citronellol), intermediate volatility ingredients (benzyl alcohol, eugenol, vanillin, cinnamaldehyde), and low volatility ingredients (limonene, linalyl acetate, geranyl acetate, citronellyl acetate, benzoic acid, salicylic acid, caffeine). This parameter optimization ensures consistent odour intensity perception while providing different odour characteristics at wet and dry stages.
Solution Approach 2:
The patent creates a composite fragrance composition by combining multiple fragrance ingredients with different volatility characteristics. The synergistic combination of these ingredients (including oppositely directed odour characteristics in some cases) provides perceptibly different odour experiences at wet and dry stages while maintaining consistent intensity, all within a simple liquid formulation that is easy to manufacture.
3Device complexity
If fragrance compositions with single odour character are used, then the composition is simple, but consumer habituation occurs due to lack of sensory variation
Solution Approach 1:
The patent optimizes the volatility parameters of fragrance ingredients to create distinct sensory experiences at different stages. The composition includes ingredients with high volatility (providing initial fresh odour), intermediate volatility (providing mid-stage odour), and low volatility (providing residual odour). This parameter distribution creates perceptibly different odour characteristics between wet and dry stages while maintaining consistent intensity and simple liquid formulation.
Solution Approach 2:
The patent creates a dynamic fragrance composition where the odour characteristics change over time as the product transitions from wet to dry stage. The different volatility ingredients evaporate at different rates, providing a temporal evolution of odour character. This dynamic behavior engages consumer interest and reduces habituation while maintaining composition simplicity.
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 fragrance composition provides distinct and hedonically pleasant odour experiences under both wet and dry conditions, reducing consumer habituation by maintaining a consistent intensity and offering a noticeable change in odour perception, thus enhancing the sensory experience of perfumed products.
Implementation Method 1
the perception of perfume typically decreases with evaporation
Data Source
AI summary
A perfume composition providing differentiated odour depending on the assessment conditions is provided. The perfume composition includes a) less than 20% by weight of perfumery ingredients having an equilibrium headspace concentration (HS) between 151 and 900 microgram/l at 25° C., b) at least 35% by weight of perfumery ingredients having a HS higher than 900 microgram/l at 25° C. and b) 25% by weight of perfumery ingredients having a HS lower than or equal to 150 microgram/l at 25° C. The perfume composition reduces consumer perfume habituation to said perfume product.