Water Dispersible Cosmetic Sachet with Effervescent Emulsification
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Solution Overview
Problem
There is a need for an easy-to-use, premeasured cosmetic composition that effectively reduces age-related symptoms in human skin, preferably delivered in a water dispersible bag that forms an emulsion when agitated in hot water, incorporating an effervescent compound to aid emulsification.
Innovation Solution
A cosmetic sachet containing a water dispersible paper bag filled with a cosmetic composition comprising sodium bicarbonate, citric acid, magnesium sulfate heptahydrate, highly saturated plant oil, and methylene blue, which forms an emulsion when agitated in hot water, releasing a topical formulation with a controlled concentration of methylene blue for skin application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cosmetic composition is delivered in a water dispersible bag, then ease of operation and convenience are improved, but device complexity increases due to the need for special dispersible packaging materials
Solution Approach 1:
The patent employs a single-use water-dispersible bag that is discarded after one use. The bag is designed to dissolve completely in water, eliminating the need for rinsing or removal. This disposable approach simplifies the user experience while the specialized material (water-dispersible polymer) handles the complexity of dissolution control.
Solution Approach 2:
The bag material undergoes a parameter change from intact to dissolved state when exposed to water. The polymer structure is designed to transition from a water-resistant state during storage to a water-soluble state during use, controlled by the hydrophilic-hydrophobic balance of the polymer chains and cross-linking density.
2Ease of operation
If effervescent compounds are added to aid emulsification, then ease of operation is improved, but loss of substance increases due to gas release
Solution Approach 1:
The patent converts the potentially harmful loss of carbon dioxide gas into a beneficial emulsification mechanism. The effervescent reaction between sodium bicarbonate and citric acid generates CO2 bubbles that physically agitate and disperse the oil phase throughout the water, creating a stable emulsion. The gas loss is thus transformed into the driving force for effective cosmetic application.
3Reliability
If methylene blue is used at effective concentrations, then skin care benefits are improved, but object-generated harmful factors may increase due to potential skin irritation
Solution Approach 1:
The patent precisely controls the concentration parameter of methylene blue within the narrow range of 0.001-0.01 wt%. This parameter optimization ensures sufficient antioxidant and skin-rejuvenating effects while remaining below the threshold for skin irritation. The controlled release from the dissolving bag further moderates the effective concentration at the skin surface.
Solution Approach 2:
The water-dispersible bag acts as an intermediary delivery system that controls the release of methylene blue. Rather than direct application of concentrated methylene blue solution, the compound is released gradually as the bag dissolves in bath water, diluting it to safe concentrations before skin contact while maintaining therapeutic 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 sachet provides a convenient and effective topical formulation that reduces age-related skin symptoms by promoting skin hydration, wound healing, and collagen production, while being safe for long-term use without skin irritation.
Implementation Method 1
The cosmetic composition includes at least one effervescent compound that functions as the agitator for emulsifying the oil
Implementation Method 2
an oil which forms an emulsion in hot water if agitated
Implementation Method 3
a bag comprising a water dispersible paper
Data Source
AI summary
A cosmetic sachet is provided for reducing age-related symptoms in human skin, the cosmetic sachet comprising: a bag comprising a water dispersing paper; and a cosmetic composition, the cosmetic composition releasably retained in the bag and comprising sodium bicarbonate, citric acid, magnesium sulfate heptahydrate, starch, highly saturated plant oil and methylene blue.