Microemulsified Silicone Shampoo Conditioning
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Solution Overview
Problem
Shampoo compositions often fail to provide sufficient deposition of conditioning agents onto hair and skin, leading to reduced conditioning benefits, and existing solutions result in tradeoffs such as reduced cleaning performance, product buildup, or instability, particularly with high internal phase viscosity silicones.
Innovation Solution
A shampoo composition combining low viscosity microemulsified silicone oil with a cationic deposition polymer, including an anionic surfactant system and a stabilizing agent, to achieve superior conditioning and storage stability while maintaining optical clarity and viscosity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high levels of conditioning agents are used to provide adequate conditioning performance, then conditioning benefits are improved, but raw material costs increase, lathering is reduced, and product stability is compromised
Solution Approach 1:
The patent changes the physical-chemical parameters of the conditioning agent by using microemulsified silicone with controlled particle size (0.01-1.0 microns) and specific viscosity ranges, enabling effective conditioning at lower concentrations while maintaining product stability
Solution Approach 2:
The patent creates a composite system combining microemulsified silicone particles with specific surfactant systems and optional cationic polymers, where the synergistic interaction between components achieves superior conditioning at reduced ingredient levels
2Reliability
If microemulsified silicone is used to provide conditioning benefits, then hair conditioning is improved, but deposition on hair is poor and conditioning agents are rinsed away
Solution Approach 1:
The patent optimizes particle size parameters to 0.01-1.0 microns and controls silicone viscosity within specific ranges, enabling the microemulsified particles to adhere effectively to hair surfaces and resist rinsing while providing conditioning benefits
Solution Approach 2:
The patent introduces surfactants and optional cationic polymers as intermediary substances that facilitate the attachment of microemulsified silicone particles to hair, improving deposition and reducing loss during rinsing
3Reliability
If high internal phase viscosity silicones are used to improve deposition, then conditioning performance is enhanced, but cleaning performance is reduced, product buildup occurs, and hair volume is reduced
Solution Approach 1:
The patent precisely controls the internal phase viscosity of silicone within specific ranges and manages particle size distribution, achieving effective conditioning deposition without excessive buildup that would harm cleaning performance or hair volume
4Reliability
If dispersed droplets of silicone oil are used to provide conditioning, then hair conditioning is attempted, but product clarity is reduced and viscosity stability deteriorates over time
Solution Approach 1:
The patent utilizes microemulsion phase formation where silicone oil is stabilized in an aqueous phase with specific surfactants, creating a thermodynamically stable system that maintains optical clarity and viscosity stability over time while providing conditioning benefits
Solution Approach 2:
The patent creates a stable composite microemulsion system where surfactants and optional co-surfactants form a structured interface around silicone particles, preventing phase separation and maintaining product clarity and stability during storage
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 effectively deposits conditioning agents, providing superior hair and skin benefits with excellent storage stability and optical transparency, while maintaining cleaning performance and avoiding product instability.
Implementation Method 1
a cationic cellulose or guar deposition polymer
Implementation Method 2
a microemulsion of silicone wherein the silicone is present as stably emulsified droplets
Implementation Method 3
an anionic detersive surfactant
Data Source
AI summary
Shampoo compositions comprising at least one surfactant; a silicone oil having an internal phase viscosity of less than about 50,000 cst, wherein said silicone oil is present as a preformed microemulsion of particles having an average particle size of less than about 0.15 microns, a cationic deposition polymer; an aqueous carrier and optionally a stabilizing agent provide a substantially clear shampoo composition, which provides superior conditioning to hair and/or skin while also providing excellent storage stability and high optical transparency or translucency.