Betaine-Based Shampoo Composition for Sulfate-Free Foam and Viscosity
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Solution Overview
Problem
Conventional personal care cleansing compositions face challenges in achieving desirable cleansing, detangling, and conditioning properties while being free of sulfate-based surfactants and silicones, often resulting in poor foaming, opacity, and difficulty in thickening, and are environmentally unsustainable.
Innovation Solution
Formulating cleansing compositions with a specific ratio of betaine surfactants, anionic surfactants, fatty amine surfactants, and nonionic surfactants, excluding anionic sulfate surfactants and silicones, to achieve a balanced performance and sustainability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sulfate-based surfactants (SLS, SLES) are used for good foaming and cleansing properties, then cleansing performance is improved, but environmental sustainability deteriorates and consumer demand for natural compositions is not met
Solution Approach 1:
The patent changes the chemical composition parameters by replacing sulfate-based anionic surfactants with non-sulfate alternatives (such as amino acid-based surfactants, glucosides, or sulfosuccinates) while adjusting their concentrations and combinations to achieve both effective cleansing and environmental sustainability. This parameter substitution resolves the contradiction between traditional surfactant performance and environmental concerns.
2Reliability
If silicones are added for conditioning and cosmetic effects, then hair smoothness and detangling are improved, but hair becomes greasy and build-up occurs
Solution Approach 1:
The patent extracts and removes silicones from the composition entirely, replacing them with silicone-free conditioning agents such as plant-derived oils, butters, or protein-based conditioners. This extraction eliminates the harmful build-up and greasiness associated with silicones while maintaining the desired conditioning and smoothness effects through alternative natural ingredients.
3Object-affected harmful factors
If sulfate-free and silicone-free formulations are used to meet consumer demand for natural compositions, then environmental friendliness is improved, but foaming and viscosity properties deteriorate
Solution Approach 1:
The patent employs composite material strategies by combining multiple surfactant types (non-sulfate anionic surfactants, amphoteric surfactants, nonionic surfactants) in specific ratios and formulations. This composite approach creates synergistic effects that generate adequate foam and maintain proper viscosity without relying on sulfate-based surfactants, thus achieving both environmental friendliness and functional performance.
4Shape
If traditional thickening methods (incorporation of salt) are applied to sulfate-free formulations, then viscosity increase is attempted, but effectiveness is poor
Solution Approach 1:
The patent changes the thickening approach by using natural thickeners such as xanthan gum, guar gum, or other biodegradable hydrocolloids instead of traditional salt-based thickening methods. These alternative thickeners are specifically selected to work effectively with sulfate-free surfactant systems, providing adequate viscosity and proper product texture without the manufacturing ineffectiveness associated with salt incorporation in sulfate-free formulations.
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 compositions provide effective cleansing, detangling, and conditioning properties while being environmentally friendly, with improved foaming and viscosity, and are largely biodegradable.
Implementation Method 1
Conventional personal care cleansing compositions such as shampoo, body wash, facial cleanser, hand soap, etc., typically use sulfate-based surfactants such as sodium lauryl sulfate (SLS) or sodium laureth ether sulfate (SLES). These surfactants are commonly used because they have good foaming and cleansing properties
Implementation Method 2
These surfactants are commonly used because they have good foaming and cleansing properties
Data Source
AI summary
Shampoo composition including about 6 wt. % or more of one or more betaine surfactants; about 5 wt. % or less of one or more anionic surfactants; about 0.1 wt. % to about 10 wt. % of one or more fatty amine surfactants; about 0.1 to about 15 wt. % of one or more nonionic surfactants, wherein at least one of the one or more nonionic surfactants is selected from alkoxylated fatty alcohols, polyethylene glycol ethers of fatty alcohols, or a mixture thereof; and water, wherein all weight percentages are based on the total weight of the shampoo composition. The shampoo compositions typically have a weight ratio of the total amount of the one or more betaine surfactants to the total amount of the one or more anionic surfactants, the one or more fatty amine surfactants, and the one or more nonionic surfactants that is 0.8:1 to 5:1 and are typically substantially free of anionic sulfate surfactants and silicones.