Post-Foaming Gel Structure with Volatile Agents
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Solution Overview
Problem
Conventional post-foaming skin cleansing and shaving gels are sensitive to skin conditioning agents, leading to a loss of structure and aesthetic issues such as stringiness and poor high-temperature stability, limiting the use of high levels of these agents.
Innovation Solution
The composition includes an aqueous base with a lipophilic skin conditioning agent, a structuring agent, and a water dispersible surface active agent, along with a volatile post-foaming agent, which maintains gel structure and application feel while allowing for higher levels of skin conditioning agents, using isododecane, isohexadecane, glyceryl oleate, and soap-based surfactants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If skin conditioning agents are added to conventional personal care compositions, then skin conditioning benefit is improved, but structure stability deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the composition by using specific surfactant systems (sodium lauryl sulfate combined with fatty acid diethanolamide) and controlling the concentration ranges of skin conditioning agents (0.1-10% w/w), thereby achieving structure stability while maintaining skin conditioning benefits
Solution Approach 2:
The patent creates a composite surfactant system combining sodium lauryl sulfate and fatty acid diethanolamide in specific ratios, which works synergistically to maintain gel structure while allowing incorporation of skin conditioning agents without drastic structure loss
2Productivity
If foaming agents are added to post-foaming shower gels, then foaming properties are improved, but viscosity deteriorates
Solution Approach 1:
The patent optimizes the concentration parameters of foaming agents (liquefied hydrocarbon and chlorofluorohydrocarbon propellants) within specific ranges (5-20% and 10-30% w/w respectively) to achieve desirable foaming properties while maintaining adequate viscosity through the synergistic surfactant base
3Stability of the object's composition
If high viscosity base is used in post-foaming shower gels, then gel properties are improved, but processability deteriorates
Solution Approach 1:
The patent adjusts the viscosity parameter of the base composition by optimizing the ratio and concentration of surfactants (sodium lauryl ether sulfate and fatty acid diethanolamide), achieving a balanced viscosity that maintains gel properties while improving processability through controlled rheological parameters
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
This formulation enhances the stability and foaming properties of personal care products, reducing skin irritation and maintaining a desirable gel texture, even with high levels of skin conditioning agents, thereby improving the overall performance and user experience.
Implementation Method 1
The compositions can comprise, consist of, and consist essentially of an aqueous base composition and a volatile post foaming agent mixed with the base composition
Data Source
AI summary
Personal care compositions are provided that include an aqueous base composition and a volatile post foaming agent mixed with the base composition. The base composition comprises a lipophilic skin conditioning agent, a structuring agent, and a water soluble or water dispersible surface active agent. The personal care composition is used as skin shaving, cleansing and moisturizing agent.