Sequential Wick Emission for Multi-Phase Fragrance Delivery
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Solution Overview
Problem
Existing fragrance dispensers face issues with fragrance perception decay due to adaptation and habituation, requiring multiple refills and actuators, which increase size and cost, and conventional evaporation-based systems result in uneven fragrance delivery with volatile components dominating early on.
Innovation Solution
A delivery system with a container holding a multi-phase composition, comprising a water and oil phase with different fragrances, uses a wick to sequentially emit these phases, ensuring a consistent fragrance experience by leveraging solubility parameters to deliver components with varying volatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple refills and actuators are used to emit different fragrances, then fragrance perception decay is reduced, but device size and cost increase
Solution Approach 1:
The fragrance composition is segmented into multiple phases (volatile and less volatile components) that are sequentially emitted from a single refill. The wick delivers different phases at different times, creating varied fragrance perceptions without requiring multiple refills or actuators.
Solution Approach 2:
The system changes the volatility parameter of the emitted fragrance over time by sequentially delivering different phases. The volatile phase is emitted first, followed by the less volatile phase, creating perception variation without hardware changes.
2Productivity
If evaporation-based delivery is used, then fragrance is delivered into air, but volatile components dominate early delivery causing uneven fragrance perception
Solution Approach 1:
The less volatile phase is positioned to be delivered after the volatile phase in a predetermined sequence. This preliminary arrangement ensures that the volatile components are exhausted first, preventing them from dominating the entire delivery period and causing composition instability.
Solution Approach 2:
The fragrance delivery occurs in periodic phases: an initial volatile phase followed by a less volatile phase. This periodic delivery pattern creates varied fragrance perceptions over time while maintaining controlled composition delivery from a single refill.
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 system maintains a consistent fragrance perception by sequentially emitting phases with different volatilities, overcoming the limitations of conventional systems and reducing the need for multiple refills and actuators.
Implementation Method 1
A wick is in contact with the water phase composition and the oil phase composition and configured to sequentially emit the water phase composition and the oil phase composition
Data Source
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AI summary
A system for delivering a multi-phase fragrance composition comprises a container having a body forming a reservoir and an opening in communication with the reservoir and a multi-phase composition disposed within the reservoir. The multi-phase composition comprises a water phase composition and an oil phase composition and the water phase composition and the oil phase composition are substantially separated. The water phase composition comprises a water phase fragrance and both water and propylene glycol as water phase solvents. The oil phase composition comprises an oil phase fragrance and isopar M as an oil phase solvent. The system further includes a wick in contact with the water phase composition and the oil phase composition and configured to sequentially emit the water phase composition and the oil phase composition.