Hair Cosmetic Composition Texture Consistency
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Solution Overview
Problem
Conventional hair colors fail to maintain satisfactory texture both during and after the rinsing process, particularly when containing cationic polymers, which excel in dry states but underperform in wet states.
Innovation Solution
A hair cosmetic composition incorporating cationic polymers, cationic surfactants with chlorine or alkyl sulfate counterions, hydrocarbon oils, ester oils, waxes, vegetable oils, nonionic surfactants, and oleyl alcohol or oleic acid, optimized in specific mass ratios and concentrations to enhance texture consistency from rinsing to dry states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cationic polymer is added to improve texture, then texture in the dry state is improved, but texture during plain rinsing deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the composition by introducing specific cationic surfactants with chlorine or alkyl sulfate counterions in controlled amounts (0.01-5 mass%) alongside the cationic polymer. This parameter adjustment allows the composition to maintain texture improvement in dry state while preventing deterioration during plain rinsing, resolving the contradiction between these two states.
Solution Approach 2:
The patent creates a composite hair color composition that integrates multiple components: cationic polymer (for texture adherence), cationic surfactant with specific counterions (to prevent texture deterioration during rinsing), oily components, and nonionic surfactants. This composite approach allows each component to address specific aspects of the texture contradiction, with the cationic surfactant counteracting the negative effects of the cationic polymer during wet states while maintaining the benefits in dry states.
2Reliability
If conventional hair color components are used, then texture in dry state can be maintained, but texture during plain rinsing is not satisfactory
Solution Approach 1:
The cationic surfactant with chlorine or alkyl sulfate counterion acts as an intermediary component that mediates between the cationic polymer and the aqueous environment during plain rinsing. It prevents the cationic polymer from causing texture deterioration in wet states while allowing the polymer to maintain its texture-improving function in dry states, thus resolving the contradiction without compromising either state.
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 excellent and consistent texture evaluation from the rinsing process to the dry state, addressing the limitations of cationic polymers by incorporating additional components that improve wet-state texture without compromising dry-state performance.
Implementation Method 1
cationic polymers are known as components which adhere well to hair
Implementation Method 2
one or more cationic surfactants with a counter ion which is chlorine or an alkyl sulfate
Data Source
AI summary
A hair color which achieves excellent texture consistently from during plain rinsing in the treatment with the hair color to the dry state after the treatment is provided includes a hair cosmetic composition containing (A) one or more cationic polymers, (B) one or more cationic surfactants with a counter ion which is chlorine or an alkyl sulfate, (C) one or more selected from hydrocarbon oils, ester oils, waxes and vegetable oils, (D) one or more nonionic surfactants and (E) one or more selected from oleyl alcohol and oleic acid.