Perfuming Method Using Hydrolyzable Precursors for Stable Fragrance Release
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Solution Overview
Problem
Existing perfuming methods face challenges in achieving stable storage and controlled sustained release of fragrances, particularly in water-based products, due to the instability of perfume-derived ester compounds with phenol or hydroxypyrone structures.
Innovation Solution
A perfuming method using esters of maltol, ethyl maltol, vanillin, or raspberry ketone combined with aliphatic monocarboxylic or dicarboxylic acids, which are hydrolyzed upon exposure to moisture, providing a stable and long-lasting fragrance release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If perfume-derived ester compounds with phenol or hydroxypyrone structures are used in water-based products, then sustained fragrance release is achieved, but storage stability deteriorates
Solution Approach 1:
The patent uses an ester compound as an intermediary substance that bridges the contradiction between sustained release and stability. The ester itself is stable during storage but hydrolyzes slowly over time to release the fragrance, acting as a mediator that transforms from a stable storage form to an active release form through controlled hydrolysis
Solution Approach 2:
The patent changes the chemical state of the fragrance from its original phenol or hydroxypyrone form to an esterified form. This parameter change (esterification) fundamentally alters the stability profile while maintaining the ability to release fragrance through subsequent hydrolysis, thus resolving the contradiction between stability and sustained release
2Stability of the object's composition
If stable molecular structure is used to improve storage stability, then storage stability is improved, but perfume release control becomes difficult
Solution Approach 1:
The ester compound is designed to automatically hydrolyze and release fragrance under normal storage conditions without requiring external triggers or complex control systems. The molecule self-regulates its transformation from stable storage form to active fragrance form through natural hydrolysis, eliminating the need for additional control mechanisms
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 method results in a perfume composition with enhanced storage stability and sustained fragrance release over a long period, suitable for use in fabric treating agents, cosmetics, and detergents.
Implementation Method 1
subsequently bringing the perfume precursor into contact with moisture in the air to perform hydrolysis, thereby releasing a perfume
Data Source
AI summary
Provided is a perfuming method including applying a water-based product to a fabric or a human body and drying, the water-based product containing a perfume precursor composed of an ester of at least one perfume selected from maltol, ethyl maltol, vanillin, ethyl vanillin, and raspberry ketone and at least one aliphatic monocarboxylic acid or aliphatic dicarboxylic acid selected from lauric acid, myristic acid, palimitic acid, stearic acid, oleic acid, adipic acid, and sebacic acid; and subsequently bringing the perfume precursor into contact with moisture in the air to perform hydrolysis, thereby releasing a perfume.