Anhydrous Solid Cosmetic Composition Using Acylglutamates
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Solution Overview
Problem
Existing solid cleansing cosmetic compositions face challenges in being environmentally friendly, skin-safe, and free from soap and preservatives, while maintaining effective foaming properties and sensory appeal.
Innovation Solution
A solid cosmetic composition with less than 10% water by weight, comprising more than 50% acylglutamates in the form of sodium salts as surfactants, along with additional surfactants like decylglucoside and plant-derived conditioning agents, which are free from triethanolamine salts and sodium cocoyl isethionate, and includes a fatty phase for stability and foaming power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If water is used as a solvent in cosmetic compositions, then the composition can dissolve ingredients and provide moisturizing effects, but it leads to microbial growth and requires preservatives
Solution Approach 1:
The patent removes water from the cosmetic composition entirely, creating an anhydrous formulation. This extraction of the problematic substance (water) eliminates the medium for microbial growth while preserving the functional benefits through alternative ingredient selection and formulation approaches.
Solution Approach 2:
The patent changes the fundamental parameter of water content from typical levels (e.g., 60-80%) to less than 10%, fundamentally altering the composition's physical and chemical properties. This parameter change enables the elimination of preservatives while maintaining product stability and functionality.
2Shape
If polyvinyl alcohol fibers are used as support in solid cosmetic articles, then the composition maintains solid form, but it hinders environmental friendliness due to harmful impact on aquatic environments
Solution Approach 1:
The patent removes polyvinyl alcohol fibers and other harmful supports from the formulation. Instead, it uses inherently solid surfactants like acylamino acids that provide both the solid structure and cleansing function, eliminating the need for separate support materials that harm aquatic environments.
Solution Approach 2:
The patent makes the surfactant molecules perform multiple functions: they provide the solid structural framework, deliver cleansing action, and eliminate the need for separate support materials. This multi-functionality resolves the contradiction between maintaining solid form and environmental friendliness.
3Reliability
If triethanolamine salts are used as surfactants and pH adjusters, then the composition achieves desired pH and surfactant properties, but it is environmentally polluting and suspected to be toxic to skin
Solution Approach 1:
The patent removes triethanolamine and its salts from the formulation entirely. It replaces them with inherently mild and environmentally compatible surfactants such as acylamino acids and their derivatives, which provide equivalent or superior performance without the associated toxicity and environmental harm.
Solution Approach 2:
The patent selects surfactants that are biodegradable and environmentally benign, replacing persistent and toxic compounds. The chosen ingredients break down naturally without harming ecosystems or skin health, aligning with sustainable cosmetic formulation principles.
4Object-affected harmful factors
If solid cosmetic compositions are made without water and preservatives, then environmental friendliness and skin safety improve, but foaming properties and sensory appeal may deteriorate
Solution Approach 1:
The patent creates a composite formulation combining multiple surfactant types (acylamino acids, their derivatives, and other compatible surfactants) with conditioning agents and optional natural ingredients. This composite approach ensures rich foaming, pleasant sensory properties, and skin benefits while maintaining the anhydrous, preservative-free structure.
Solution Approach 2:
The patent optimizes the concentration ratios and molecular structures of the surfactant components to achieve maximum foaming performance and sensory appeal. By carefully adjusting these parameters within the anhydrous framework, the formulation delivers luxury用户体验 without compromising safety or environmental compatibility.
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 achieves satisfactory foaming and skin integrity while being environmentally respectful, hydratable, and free from harmful ingredients, maintaining effective cleansing without soap or preservatives.
Implementation Method 1
comprising more than 50% acylglutamates in the form of sodium salts as surfactants
Data Source
AI summary
The invention relates to a solid composition for cleaning the skin or hair comprising more than 50% surfactants, said surfactants comprising at least three acylglutamates in the form of different sodium salts and said composition being free of triethanolamine salts.