Aqueous Hair Oxidizing Composition for Uniform Grey Coverage
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Solution Overview
Problem
Existing oxidative hair dyeing technologies struggle to achieve homogeneous coloration and satisfactory grey coverage, despite efforts focusing on alkalinity and dyestuff concentration.
Innovation Solution
An aqueous oxidizing composition comprising polyol, oil, solid fatty alcohol, and surfactant, with specific concentrations and ratios, is used to enhance homogeneous coloration and grey coverage, mixed with a hair dye or oxidative dye precursors, and applied for 1-45 minutes before rinsing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional oxidative hair dyeing compositions are used, then the dyeing process is simple, but homogeneous coloration and grey coverage are not achieved
Solution Approach 1:
The patent applies composite materials by formulating an oxidizing composition containing multiple specific ingredients (polyol, oil, solid fatty alcohol, and surfactant) in defined concentration ranges. This composite formulation works synergistically to achieve homogeneous coloration and grey coverage that cannot be obtained with traditional single-ingredient oxidizing compositions.
Solution Approach 2:
The patent applies parameter changes by precisely controlling the concentration ranges of each ingredient (polyol: 0.1-5%, oil: 0.1-5%, solid fatty alcohol: 0.1-5%, surfactant: 0.1-5%) and the pH level (2-5) of the oxidizing composition. These parameter optimizations enable the composition to effectively penetrate damaged hair structures and achieve uniform color distribution.
2Manufacturing precision
If alkalinity is increased to improve grey coverage, then grey coverage may improve, but hair damage and coloration homogeneity worsen
Solution Approach 1:
The patent applies parameter changes by optimizing the pH level to a specific range (2-5), which is significantly lower than traditional alkaline hair dye compositions. This pH optimization, combined with the specific ingredient concentrations, enables effective grey coverage while minimizing hair damage and maintaining coloration homogeneity.
Solution Approach 2:
The patent applies composite materials by using a combination of gentle ingredients (polyol, oil, solid fatty alcohol, and surfactant) that work synergistically to achieve grey coverage without the need for high alkalinity. This composite formulation protects hair from damage while effectively covering grey hairs.
3Manufacturing precision
If dyestuff concentration is increased to improve coloration, then color intensity improves, but coloration homogeneity and grey coverage worsen
Solution Approach 1:
The patent applies parameter changes by optimizing the concentration of oxidizing agents (1-20% hydrogen peroxide) and the pH level (2-5) to achieve maximum coloration homogeneity and grey coverage. This parameter optimization ensures that even at moderate dyestuff concentrations, uniform and effective coloration is achieved.
Solution Approach 2:
The patent applies composite materials by using a multi-ingredient oxidizing composition that enhances the efficiency of dyestuff utilization. The combination of polyol, oil, solid fatty alcohol, and surfactant creates a synergistic effect that improves coloration homogeneity and grey coverage without requiring excessive dyestuff concentrations.
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 improved homogeneous hair coloring and 100% grey coverage on damaged hair, demonstrating enhanced dyeing performance.
Implementation Method 1
aqueous oxidizing composition comprising hydrogen peroxide... one or more oxidative dye precursors... Transform Chemical Energy to Chemical Energy
Implementation Method 2
one or more surfactant... aqueous oxidizing composition... Move Liquid
Implementation Method 3
one or more polyol... one or more oil... Stabilise Viscosity
Data Source
AI summary
Present invention relates to an aqueous oxidizing composition for hair which makes possible achieving homogeneous coloration of multiple damaged hair and especially provides excellent grey coverage with oxidative hair dyes. The object of the invention is an aqueous oxidizing composition for hair comprising one or more oxidizing agent, one or more polyol, one or more oil, one or more solid fatty alcohol and one or more surfactant wherein fatty alcohol to oil weight ratio is less than 1, weight ratio of surfactant to sum of fatty alcohol and oil is less than 0.25 and polyol concentration is less than or equal to 2% by weight calculated to the total of the composition.