Modified Sorbitan Siloxane Cleansing Wipes Stability
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Solution Overview
Problem
Existing personal care wipes face challenges in incorporating hydrophobic skin benefit agents into aqueous solutions without separation issues, leading to poor aesthetics and potential skin irritation, while high surfactant concentrations or humectants can cause irritation or greasiness.
Innovation Solution
Incorporation of a modified sorbitan siloxane into single phase compositions and wipes, which is water dispersible and capable of solubilizing oils on the skin or hair, providing a cleansing effect without harsh surfactants and improving skin feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If hydrophobic skin benefit agents are incorporated into aqueous wipe solutions, then skin aesthetics and moisturization are improved, but separation issues occur and stability is compromised
Solution Approach 1:
The patent uses surfactants as intermediary substances to bridge the hydrophobic skin benefit agents and the aqueous wipe solution. The surfactant molecules have both hydrophilic (water-loving) and hydrophobic (water-fearing) portions, allowing them to solubilize the hydrophobic agents in the aqueous environment while maintaining solution stability and preventing separation.
Solution Approach 2:
The patent modifies the chemical parameters of the formulation by carefully controlling the concentration and type of surfactant used. By adjusting surfactant concentration and selecting appropriate surfactant molecules with suitable HLB (hydrophile-lipophile balance) values, the formulation achieves stable incorporation of hydrophobic agents without separation.
2Stability of the object's composition
If surfactant concentration is increased to stabilize oil in aqueous solution, then oil stability is improved, but skin irritation increases
Solution Approach 1:
The patent optimizes the surfactant concentration parameter to achieve the minimum effective level needed for stabilizing oil in the aqueous solution. By carefully controlling this parameter and selecting surfactants with appropriate properties, the formulation maintains oil stability while minimizing skin irritation effects.
Solution Approach 2:
The patent employs surfactants that can be easily rinsed off the skin, effectively making their action short-lived and non-accumulative. This approach allows sufficient surfactant to be present during the cleansing action to stabilize and remove oils, but the surfactant is then removed with water, preventing prolonged skin irritation.
3Stability of the object's composition
If PEG and/or PPG containing surfactants are used to stabilize oil, then long-term stability is improved, but consumer acceptance decreases due to negative attention
Solution Approach 1:
The patent changes the chemical composition parameters by selecting alternative surfactant types that do not contain PEG or PPG components. By choosing surfactants based on other chemical families (such as amino acid-based, glucose-based, or other non-PEG/PPG surfactants), the formulation achieves long-term stability without incorporating ingredients that have received negative consumer attention.
4Ease of manufacture
If high levels of humectants such as glycerin are included to achieve moisturization, then skin moisturization is improved, but tack or drag increases which is aesthetically displeasing
Solution Approach 1:
The patent introduces hydrophobic skin benefit agents as intermediary substances that provide moisturization through a different mechanism than humectants. These agents deliver skin benefit and moisturization effects without the water-binding properties of humectants that cause tackiness, thereby achieving moisturization without the associated aesthetic drawbacks.
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 modified sorbitan siloxane effectively cleanses the skin or hair while imparting a perceivable aesthetic feel, reducing skin irritation and sheet-to-sheet adhesion, and providing a smooth, moisturizing effect without the drawbacks of traditional surfactants or humectants.
Implementation Method 1
a modified sorbitan siloxane is incorporated into the compositions and wipes... capable of solubilizing oils located on the skin or hair of the user
Implementation Method 2
single phase compositions and wipes... water dispersible and capable of solubilizing oils
Data Source
AI summary
The present disclosure generally relates to personal care cleansing compositions and wipes. More particularly, the disclosure relates to single phase compositions and wipes for cleansing the skin and/or hair of a user, while additionally, imparting a perceivable aesthetic feel to the skin of a user. To achieve both cleansing and the perceivable aesthetic feel, a modified sorbitan siloxane is incorporated into the compositions and wipes.