Water-Based Fragrance Composition Without Ethanol or Oily Residue
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Solution Overview
Problem
The perfume industry faces challenges in replacing ethanol due to its VOC nature and negative effects on skin integrity, while alternative organic solvents result in oily skin feel and potential staining, necessitating ethanol-free fragrance compositions that maintain fragrance bloom and transparency.
Innovation Solution
A water-based fragrance composition using solubilizers like PPG-26-buteth-26, PEG-40 hydrogenated castor oil, and trideceth-9, with fragrance ingredients having a c Log P value less than 5, achieving stability and transparency without ethanol, and optionally including preservatives and boosters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ethanol is used as a solvent in perfume, then fragrance ingredients are well dissolved and rapid evaporation with cooling sensation is achieved, but VOC emissions increase and skin integrity is compromised
Solution Approach 1:
The patent removes ethanol entirely from the fragrance composition, extracting the harmful solvent component while retaining fragrance delivery functionality through alternative means (oil-based formulation with cyclodextrin encapsulation).
Solution Approach 2:
Cyclodextrin molecules serve as intermediary carriers that encapsulate fragrance ingredients, enabling controlled release without requiring ethanol as a solvent. This mediator allows fragrance dissolution and delivery while avoiding VOC emissions and skin damage associated with ethanol.
2Object-generated harmful factors
If other organic solvents are used to replace ethanol, then VOC emissions are reduced, but oily skin feel and staining are created
Solution Approach 1:
The patent changes the fundamental parameter of solvent type from organic solvents to water-based formulation with cyclodextrin encapsulation. This parameter change eliminates oily skin feel and staining while maintaining fragrance delivery, as the cyclodextrin-fragrance complexes dissolve in water rather than leaving oily residues.
Solution Approach 2:
The formulation uses a composite approach combining cyclodextrin inclusion complexes with water-soluble components, creating a hybrid system that achieves fragrance delivery without the drawbacks of traditional organic solvents. The cyclodextrin acts as a molecular container that modifies the physical properties of fragrance ingredients.
3Object-generated harmful factors
If water-based formulation is used without cyclodextrin, then VOC emissions and skin damage are reduced, but fragrance ingredient solubility and stability are insufficient
Solution Approach 1:
The cyclodextrin molecules form nested structures where fragrance ingredients are encapsulated within the cyclodextrin cavity. This nesting arrangement protects fragrance molecules from degradation, enhances water solubility, and enables controlled release, solving the solubility and stability issues of water-based formulations.
Solution Approach 2:
Cyclodextrin serves as an intermediary that bridges the incompatibility between water-soluble formulation and oil-soluble fragrance ingredients. The cyclodextrin cavity provides a hydrophobic environment for fragrance molecules while the exterior remains water-compatible, enabling stable aqueous formulation.
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 provides a stable, translucent, and non-sticky skin-feel with full olfactory restitution, maintaining fragrance integrity over a wide temperature range and reducing skin irritation.
Implementation Method 1
The fragrance composition comprises at least one fragrance ingredient, at least one solubilizer, and acceptable carriers, and is substantially free of ethanol. The at least one solubilizer is selected from the group consisting of PPG-26-buteth-26, PEG-40 hydrogenated castor oil, trideceth-9, PPG-20 methyl glucose ether, dipropylene glycol, hydrophilic polymers, and mixtures thereof
Data Source
AI summary
A fragrance composition is provided. The fragrance composition comprises one or more fragrance ingredients, at least one solubilizer, and acceptable carriers, and the composition is substantially free of ethanol. The composition is a perfume, perfume water, eau de toilette, eau de cologne, eau de parfum, fragrance mist, or air freshener. The composition may be personalized and may also provide a sensory experience.