Film Flakes for Delayed Fragrance Release in Cleaning Compositions
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Solution Overview
Problem
Existing cleaning compositions face challenges in delivering fragrance effectively while maintaining aesthetic appeal, as fragrance is often diluted and washed away, and film fragments are prone to instability in high water and surfactant content environments.
Innovation Solution
A cleaning composition incorporating film flakes with a polymer system, including hydroxypropyl methylcellulose and polyvinyl acetate, that suspends in a surfactant system with high water activity and surfactant content, allowing for delayed fragrance release when diluted, enhancing both fragrance delivery and aesthetic properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If film fragments are used to deliver fragrance, then fragrance delivery efficiency is improved, but dimensional and compositional stability deteriorates in high water and surfactant content environments
Solution Approach 1:
The patent changes the water solubility parameter of the film material to approximately 40-60%, creating an optimal balance where the film is stable enough to maintain its structure in the cleaning composition but soluble enough to release fragrance when diluted with water during use
Solution Approach 2:
The patent uses composite film materials comprising multiple polymers (e.g., polyvinyl alcohol, polyethylene oxide, carboxymethyl cellulose) with complementary properties that provide both structural stability in the concentrated composition and controlled solubility for fragrance release upon dilution
2Productivity
If fragrance is dissolved or dispersed in the composition, then fragrance is delivered, but fragrance is diluted and washed away reducing its effectiveness
Solution Approach 1:
The patent segments the fragrance delivery system by incorporating fragrance particles or encapsulated fragrance within the film matrix, allowing the fragrance to be contained and released in a controlled manner rather than being freely dissolved and washed away
Solution Approach 2:
The patent prepares the fragrance within the film structure in advance, so that the fragrance release is triggered by the dilution event during use, ensuring fragrance is delivered at the optimal moment rather than being lost during application
3Productivity
If film fragments with high solubility are used, then fragrance release is enhanced, but dimensional stability and structural integrity worsen
Solution Approach 1:
The patent optimizes the water solubility parameter to a specific range (40-60%) that balances fragrance release capability with structural stability, preventing the film from dissolving too quickly while ensuring adequate fragrance delivery upon dilution
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 achieves a controlled release of fragrance, providing a pleasant scent during use and maintaining stability in high water and surfactant environments, improving user experience and fragrance perception.
Implementation Method 1
the film flake has a solubility in water of 40% to 60%
Implementation Method 2
The cleaning composition contains at least one surfactant, and a plurality of film flakes. The composition has a water activity higher than 0.9 and a surfactant content of at least 15%
Implementation Method 3
The film flake may include a water-soluble polymer, a water-insoluble polymer and a beneficial ingredient, such as fragrance
Data Source
AI summary
A cleaning composition that contains film flakes with beneficial ingredients. The composition with the film flakes releases the beneficial ingredients when it is delivered to the target surface.