Nano Zeolite Warming Composition Dispersion Stability
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Solution Overview
Problem
Conventional warming compositions containing zeolite or polyhydric alcohol face issues with storage stability and clogging of discharge mechanisms due to zeolite's powder form, leading to reduced warming impact and unpleasant texture.
Innovation Solution
Using nano-sized zeolite particles instead of micron-sized zeolite, combined with polyhydric alcohol in an aerosol formulation where zeolite and water are stored in separate containers, with a propellant-filled space between them to enhance dispersion stability and prevent clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If micron-sized zeolite is used in warming composition, then heat-generating capability is achieved, but dispersion stability deteriorates and precipitation occurs during long-term storage
Solution Approach 1:
The patent applies parameter changes by reducing the particle size of zeolite from micron-scale to nano-scale (specifically 10-500 nm). This fundamental change in the physical parameter of particle size resolves the contradiction by maintaining the heat-generating capability while dramatically improving dispersion stability and preventing precipitation during long-term storage.
2Temperature
If micron-sized zeolite powder is used in aerosol formulation, then warming effect is produced, but discharge mechanism becomes clogged
Solution Approach 1:
The patent resolves this contradiction by changing the particle size parameter of zeolite to nano-scale (10-500 nm). The reduced particle size allows the zeolite to pass through the discharge mechanism without clogging while still maintaining the warming effect when applied to the skin.
3Temperature
If zeolite adsorbs moisture from air during storage, then heat-generating reaction is activated, but storage stability is reduced
Solution Approach 1:
The patent applies preliminary action by pre-mixing zeolite with polyhydric alcohol to create a composition that is stable during storage. The polyhydric alcohol acts as a moisture barrier, preventing premature adsorption of atmospheric moisture by the zeolite. The heat-generating reaction is activated only when water is intentionally applied to the composition during use.
4Temperature
If zeolite is used instead of polyhydric alcohol, then warming impact is enhanced, but feeling of use becomes rough
Solution Approach 1:
The patent resolves this contradiction by changing the particle size parameter of zeolite to nano-scale (10-500 nm). The reduced particle size eliminates the rough feeling during application while maintaining or enhancing the warming impact, providing both sensory comfort and thermal effectiveness.
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 solution provides improved dispersion stability, increased warming impact, and prevents clogging, ensuring a favorable user experience and long-term storage stability by using nano-sized zeolite particles and separate storage of zeolite and water in an aerosol formulation.
Implementation Method 1
compositions containing zeolite or a polyhydric alcohol, which compositions generate heat when they are applied to the skin and allowed to react with water in the skin
Implementation Method 2
zeolite or polyhydric alcohol adsorbs moisture in the air when, for example, a cap is opened
Data Source
AI summary
The present invention aims to provide a warming composition showing a favorable dispersion stability after long-term storage, a high warming impact, and improvement of zeolite-specific deterioration of feeling of use, and to provide an aerosol formulation containing the warming composition. This object is achieved with a warming composition containing zeolite nanoparticles having an average particle size of not more than 500 nm, wherein the temperature of the composition is rapidly increased by heat generated by hydration reaction between the zeolite and water.