Absorbent Article Perfume Composition for Improved Cyclodextrin Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional perfumes in absorbent articles are not optimized for efficient release from cyclodextrin complexes, leading to incomplete perfume expression and persistent malodor issues, especially after extended wear or disposal.
Innovation Solution
Formulating perfumes with 10% or more of perfume raw materials having a cyclodextrin complex stability constant of less than about 3.0, a C log P of about 2.5 or less, and a weight average molecular weight of about 200 Daltons or less to enhance release from cyclodextrin complexes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional perfumes are used in absorbent articles, then the articles can mask or reduce odor, but the perfume release is incomplete and malodor persists after extended wear or disposal
Solution Approach 1:
The patent applies parameter changes by optimizing the chemical composition of perfumes to achieve specific physical properties: C log P of about 2.5 or less, weight average molecular weight of about 200 Daltons or less, and cyclodextrin complex stability constant of less than about 3.0. These parameter optimizations enable complete perfume release from cyclodextrin complexes, resolving the contradiction between reliable perfume release and malodor persistence.
2Stability of the object's composition
If perfumes are strongly bound to cyclodextrin complexes, then the perfume is retained within the complex, but the perfume character is not expressed or remains unexpressed
Solution Approach 1:
The patent resolves this contradiction by changing the stability parameter of the cyclodextrin complex to be less than about 3.0. This optimized stability parameter allows the perfume to remain bound to the cyclodextrin complex for retention while simultaneously enabling complete release and expression of the perfume character, preventing unexpressed perfume components.
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 optimized perfumes demonstrate significantly improved fragrance intensity and duration, with up to 15 times greater release compared to conventional compositions, ensuring pleasant scent perception during and after use.
Implementation Method 1
a cyclodextrin complex stability constant (log k) of less than about 3.0
Data Source
AI summary
An absorbent article comprising a perfume which is suitable for improved release from a cyclodextrin complex, wherein the perfume includes 10% or more, by weight of the perfume, of one or more perfume raw materials having: a cyclodextrin complex stability constant (log k) of less than about 3.0, a C log P of about 2.5 or less, and a weight average molecular weight of about 200 Daltons or less.