Amino Silicone Detergent Compositions for Transparent Hair Care
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Solution Overview
Problem
Conventional detergent compositions for keratin materials like hair, while effective in cleaning, often cause damage due to their aggressive nature, leading to issues such as hair lankness, lack of smoothness, and insufficient sheen, and may not produce transparent or clear compositions.
Innovation Solution
A cosmetic composition combining sulfate or sulfonate anionic surfactants, carboxylic anionic surfactants, amphoteric surfactants, and amino silicones, which provides excellent cosmetic properties like disentangling, lightness, and smoothness without the drawbacks of traditional compositions, maintaining stability and transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If insoluble conditioning agents such as silicones are used to improve disentangling and softness, then cosmetic properties like softness and disentangling are improved, but the composition becomes non-transparent and exhibits lankness and lack of smoothness
Solution Approach 1:
The patent changes the physical-chemical parameter of the silicone from insoluble to water-soluble by introducing amino groups (forming amino silicones with amine numbers of 0.1-5.0 meq/g). This parameter change enables the silicone to dissolve in water, producing transparent compositions while maintaining the desired disentangling and softness effects without lankness or poor smoothness.
Solution Approach 2:
The patent creates a composite material system by combining amino silicones with specific surfactant mixtures (sulfate/sulfonate anionic surfactants, carboxylic anionic surfactants, and amphoteric surfactants in defined ratios). This composite approach enhances both the cosmetic properties and the transparency of the composition, resolving the contradiction between conditioning effectiveness and visual clarity.
2Power
If standard anionic surfactants are used for cleaning, then washing power is improved, but cosmetic properties deteriorate due to hair damage and lankness
Solution Approach 1:
The patent merges two previously separate functions into a single composition: the cleaning function (provided by sulfate/sulfonate anionic surfactants) and the conditioning function (provided by amino silicones). This combination allows the composition to deliver both strong washing power and excellent cosmetic properties including smoothness, shine, and lack of lankness simultaneously.
Solution Approach 2:
The amino silicone acts as an intermediary that bridges the harsh cleaning action and the protective cosmetic effect. It mediates between the aggressive surfactants and the hair fiber, providing conditioning benefits that counterbalance the potential damage from strong cleaning, thereby improving overall cosmetic properties while maintaining washing power.
3Ease of operation
If large amounts of amino silicone are added to achieve good cosmetic properties, then disentangling and smoothness are improved, but composition stability and transparency may be compromised
Solution Approach 1:
The patent optimizes the amine number parameter of the silicone within the range of 0.1-5.0 meq/g to achieve the right balance between water solubility (for transparency) and conditioning effectiveness (for disentangling and smoothness). This parameter optimization allows large amounts of silicone to be incorporated while maintaining composition stability and transparency.
Solution Approach 2:
The patent applies local quality by using amino silicones with specific amine number characteristics tailored for different formulation needs. By controlling the amine number, the patent achieves localized optimization where high silicone content provides excellent cosmetic properties in specific areas of the formulation while maintaining overall composition stability and transparency.
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 stable, transparent, and effective cleansing and conditioning of hair, providing an abundant, airy lather with good rinsability, while enhancing hair's natural appearance and health without causing greasiness or lankness.
Implementation Method 1
comprising, in a cosmetically acceptable support, at least one sulfate or sulfonate anionic surfactant, at least one carboxylic anionic surfactant different from the preceding surfactant, at least one amphoteric surfactant, and at least one amino silicone
Implementation Method 2
at least one amino silicone... providing excellent cosmetic properties like disentangling, lightness, and smoothness
Data Source
AI summary
Disclosed herein is novel detergent and conditioning composition comprising, in a cosmetically acceptable medium, at least one sulfate or sulfonate anionic surfactant, at least one carboxylic anionic surfactant other than the preceding surfactant, at least one amphoteric surfactant and at least one amino silicone, wherein the sulfate or sulfonate anionic surfactant/carboxylic anionic surfactant weight ratio ranges from 2 to 12, and the surfactants are present in the composition in a total amount ranging from 4% to 35% by weight relative to the total weight of the composition. Also disclosed herein is a method for cleansing and/or caring for keratin materials such as the hair or the skin comprising applying this composition to the keratin materials.