Keratin Fiber Conditioning Composition Using Ether and Soybean Oil
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Solution Overview
Problem
Current hair care compositions, particularly shampoos, often damage hair due to the aggressive nature of surfactants, leading to issues like lipid and protein removal, and existing conditioning agents do not adequately address these damages, especially in sensitized hair such as bleached hair.
Innovation Solution
A silicone-free composition comprising an ether of formula R—O—R′, a surfactant, a cationic alkyldiallylamine or dialkyldiallylammonium cyclopolymer, and soybean oil, which improves combing ability and conditioning of damaged hair like bleached hair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surfactants are used for washing hair, then cleaning power is improved, but hair damage increases due to aggressive cleansing removing lipids and proteins
Solution Approach 1:
The patent converts the harmful aggressive action of surfactants into a beneficial conditioning effect by using the same surfactant molecules to provide both cleaning and conditioning functions, thereby reducing overall hair damage while maintaining cleaning power
Solution Approach 2:
The patent creates a composite surfactant system combining multiple surfactant types with different properties (anionic, cationic, nonionic) to achieve a balance between effective cleaning and gentle conditioning, reducing the harmful effects of individual surfactant components
2Object-affected harmful factors
If conditioning agents are added to improve cosmetic properties, then hair conditioning is improved, but the composition complexity increases
Solution Approach 1:
The patent uses surfactants that perform multiple functions simultaneously - both cleaning and conditioning - thereby improving cosmetic properties without adding separate conditioning agents that would increase composition complexity
Solution Approach 2:
The patent merges the cleaning and conditioning functions into a single integrated surfactant system, combining what would traditionally be separate functional components into one unified formulation
3Ease of operation
If traditional conditioning agents like silicones are used, then disentangling and smoothness are improved, but the composition becomes less suitable for sensitive or damaged hair
Solution Approach 1:
The patent changes the chemical parameters of the conditioning system by using amphoteric and nonionic surfactants with specific HLB values and molecular structures that provide gentle conditioning suitable for sensitized hair, rather than traditional silicones
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 significantly reduces combing force and enhances detangling, smoothness, and suppleness of bleached hair, providing improved conditioning effects compared to traditional shampoos.
Implementation Method 1
at least one cationic alkyldiallylamine or dialkyldiallylammonium cyclopolymer
Implementation Method 2
Surfactants such as anionic surfactants, amphoteric surfactants, or a mixture are commonly known for the ability of removing the various kinds of soil initially present in the hair
Data Source
AI summary
Disclosed is a composition comprising, in an aqueous phase: a) at least one ether of formula (I): R—O—R′ in which R and R′, which may be identical or different, denotes a linear or branched C6-C25 alkyl or alkenyl radical, R and R′ being chosen such that the ether is liquid at a temperature of less than or equal to 30° C.; b) at least one surfactant chosen from anionic surfactant, amphoteric or zwitterionic surfactant, or a mixture thereof; c) at least one cationic alkyldiallylamine or dialkyldiallylammonium cyclopolymer; and d) soybean oil.