Shower Emulsion Surfactant System for Foam and Rinsing
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Solution Overview
Problem
Existing shower emulsions often foam poorly, are difficult to rinse off, or have a greasy/slippery feeling, which are unpleasant for consumers.
Innovation Solution
A body cleansing emulsion containing at least 1.8% by weight of amphoteric or zwitterionic surfactants, 1% by weight of sodium cocoyl glutamate, and a crosslinked copolymer of methacrylic acid and C1 to C4 alkyl acrylate, with a total surfactant content of 6 to 25% by weight, along with a specific ratio and preferred concentrations of components, is used to create a stable, well-foaming, and easy-to-rinse product.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If emulsion-shaped preparations with oil or emollient content exceeding surfactant content are used, then sensory properties are improved, but foaming behavior deteriorates
Solution Approach 1:
The patent applies parameter changes by precisely controlling the surfactant content range (6-25% by weight) and the oil/emollient content range (5-30% by weight), ensuring that surfactant content remains equal to or greater than oil content. This quantitative parameter control resolves the contradiction by maintaining optimal foaming behavior while achieving pleasant sensory properties through the emulsion formulation.
2Ease of operation
If shower emulsions with high oil content are formulated, then sensory properties are improved, but rinsing off becomes difficult
Solution Approach 1:
The patent resolves this contradiction by controlling the oil content parameter within 5-30% by weight and ensuring surfactant content (6-25% by weight) equals or exceeds oil content. This parameter optimization allows the emulsion to provide rich sensory properties while maintaining easy rinsing characteristics through adequate surfactant levels that prevent excessive greasiness.
Solution Approach 2:
The patent uses a composite surfactant system combining anionic surfactants (7.7-10.2% by weight) with amphoteric surfactants (1.4-1.7% by weight) to create a synergistic effect. This composite material approach enhances both sensory properties and rinsing behavior by balancing the emollient effects with the cleansing and rinsing properties of different surfactant types.
3Stability of the object's composition
If conventional shower emulsion formulations are used, then stability is achieved, but foaming and rinsing properties deteriorate
Solution Approach 1:
The patent employs a composite material strategy by formulating a multi-component surfactant system including anionic surfactants (7.7-10.2% by weight) and amphoteric surfactants (1.4-1.7% by weight), combined with specific polymers (0.01-0.5% cationic polymer, 0.1-10% water-insoluble conditioning oil). This composite formulation achieves stable emulsion composition while simultaneously improving foaming and rinsing properties through the synergistic interaction of different material components.
Solution Approach 2:
The patent resolves the contradiction between stability and performance by optimizing multiple parameters: surfactant content (6-25% by weight), oil content (5-30% by weight), polymer concentrations, and pH conditions. These parameter optimizations ensure thermodynamic stability of the emulsion while maintaining excellent foaming and rinsing characteristics that conventional formulations fail to achieve.
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 composition results in a stable, well-foaming, and easy-to-rinse shower emulsion with superior sensory properties, maintaining viscosity stability even after long-term storage and avoiding greasiness.
Implementation Method 1
a crosslinked copolymer of methacrylic acid and C1 to C4 alkyl acrylate... This special gelling agent as a stabilizer
Implementation Method 2
crosslinked copolymer of methacrylic acid and C1 to C4 alkyl acrylate
Implementation Method 3
at least 1.8% by weight of amphotheric or zwitterionic surfactants and at least 1% by weight of sodium cocoyl glutamate... specially tailored surfactant system... well-foaming
Implementation Method 4
improve the amount of foam in cosmetic cleaning emulsions and the use of... to improve the foam quality
Implementation Method 5
body cleansing preparation in the form of an emulsion... stable, well-foaming... maintaining viscosity stability even after long-term storage
Implementation Method 6
specially tailored surfactant system... stable... shower emulsion
Data Source
AI summary
The body cleaning preparation comprises 1.8 wt.% of amphoteric or zwitterionic surfactant, 1.0 wt.% of sodium cocoyl glutamate and a cross-linked copolymer of methacrylic acid and 1-4C-alkyl acrylate. The amount of the surfactant is 6.0-25 wt.%, preferably 8.0-20 wt.%, particularly 12-16 wt.% and the body cleaning preparation is in the form of emulsion. The copolymer is cross linked by using 0.03-1.0 wt.% of multiple ethylenic unsaturated cross-linking agents. Oils in the form of natural triglycerides, fatty alcohol ethoxylates and polysaccharide are also provided.