Foaming Cleansing Composition Surfactant Blend Viscosity

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Solution Overview

Problem

Conventional cleansing systems relying on sulfate surfactants face challenges in replacing them with nature-based surfactants like amino acid surfactants and glycolipids, as these often require thickeners and result in undesirable sensory properties such as gel-like textures and the inclusion of potentially toxic synthetic ingredients.

Innovation Solution

A foaming cleansing composition comprising a unique blend of amphoteric surfactants, such as cocamidopropyl hydroxysultaine, and anionic surfactants like methyl oleoyl taurate, with a carboxyl group, which forms entangled elongated micelles without the need for sulfate surfactants or PEG-type polymeric thickeners, ensuring a smooth and creamy texture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If nature-based surfactants such as amino acid surfactants and glycolipids are used to replace sulfate surfactants, then renewability and safety are improved, but the composition requires inclusion of thickeners and results in gel-like textures with undesirable sensory properties

Engineering Contradiction:

Improvetoxicity and renewabilityVSAvoidsensory properties and texture

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent combines multiple nature-based surfactants (amino acid surfactants, glycolipids, and other biodegradable surfactants) in specific ratios to create a synergistic system that achieves both desirable sensory properties and high renewability content, eliminating the need for synthetic thickeners while maintaining smooth liquidous texture

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent optimizes the concentration ratios of different surfactant components and adjusts pH levels to control micelle formation and viscosity, achieving the desired balance between sensory properties and natural ingredient content without requiring synthetic additives

Inventive Principle:

Principle #35Parameter changes

2Reliability

If sulfate surfactants are used, then foaming and cleansing performance is achieved, but renewability and safety are reduced due to synthetic ingredients

Engineering Contradiction:

Improvefoaming and cleansing performanceVSAvoidrenewability and toxicity

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent converts the previously problematic properties of nature-based surfactants (poor micelle formation, low salt responsiveness) into benefits by using specific combinations and ratios, demonstrating that these natural ingredients can achieve performance comparable to or better than sulfate-based systems while being biodegradable and non-toxic

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent creates a composite surfactant system combining amino acid surfactants, glycolipids, and other biodegradable surfactants, where each component contributes specific properties that collectively achieve high foaming performance, cleansing efficacy, and biodegradability, replacing synthetic sulfate surfactants entirely

Inventive Principle:

Principle #40Composite materials

3Ease of operation

If PEG-type polymeric thickeners are included to achieve desired viscosity, then texture is improved, but the composition contains synthetic non-biological ingredients reducing renewability

Engineering Contradiction:

Improveviscosity and textureVSAvoidrenewability and synthetic ingredient content

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent removes PEG-type polymeric thickeners and other synthetic additives from the formulation, relying instead on the intrinsic viscosity-enhancing properties of the surfactant combinations themselves, particularly the entangled elongated micelles formed by the nature-based surfactant system, to achieve the desired texture and flow characteristics

Inventive Principle:

Principle #2Taking out (Extraction)

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 composition provides effective foaming and cleansing performance comparable to benchmarks, with enhanced renewability and pleasing sensory properties, while using higher amounts of nature-based ingredients and avoiding harsh additives, as demonstrated by in-vitro and in-vivo testing.

Implementation Method 1

conventional cleansing systems relying on sulfate surfactants and amphoteric surfactants to build viscosity via surfactant interaction. Such combinations of ingredients provide entangled elongated type micelles

Methodology Applied

Scientific EffectMicelle formation: Surfactant

Data Source

PatentUS20250000753A1Foaming cleansing composition

Publication Date: 2025.01.02 LOREAL SA

AI summary

A foaming cleansing composition includes at least one amphoteric surfactant, which may be selected from cocamidopropyl hydroxysultaine, cocamidopropyl betaine, cocobetaine, sodium lauroamphoacetate, disodium cocoamphodiacetate, or combinations thereof, at least one anionic surfactant comprising methyl oleoyl taurate, at least one anionic surfactant having a carboxyl group which may be selected from sarcosinates, glycinates, alaninates, glutamates, glycolipids, or combinations thereof, and water. The foaming cleansing composition may be essentially free of added PEG-type polymeric thickeners.