Clay-Based Compositions for Selective Semi-Permanent Dye Removal
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Solution Overview
Problem
Existing methods for removing semi-permanent hair dye are harsh and cause damage to hair, or are ineffective in completely removing the dye without also affecting permanent dyes, making it difficult to achieve desired hair color changes without additional damage.
Innovation Solution
Compositions comprising clay compounds and solvents, optionally with surfactants, thickeners, amino acids, or salts, are used to selectively remove semi-permanent dyes from hair, allowing for controlled alteration of hair color, tone, and/or shade without harsh chemicals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If oxidizing agents are used to remove semi-permanent hair dye, then color removal effectiveness is improved, but hair damage increases
Solution Approach 1:
The patent introduces clay compounds as intermediary substances that mediate between the hair fiber and the dye molecules. The clay compounds selectively adsorb semi-permanent dye molecules from the hair through their porous structure and surface area, enabling color removal without requiring harsh oxidizing agents that would damage the hair.
Solution Approach 2:
The patent replaces the chemical mechanism of oxidizing agents with a physical mechanism of adsorption. Instead of using chemical reactions to break down dye molecules, the invention uses the physical properties of clay compounds (surface area, porosity, and adsorption capacity) to selectively remove dye molecules from the hair fiber.
2Reliability
If harsh chemicals are used to remove semi-permanent dye, then complete color removal is achieved, but hair strength decreases
Solution Approach 1:
The patent changes the parameters of the color removal process by using clay compounds with specific physical properties (surface area, porosity, charge characteristics) instead of harsh chemicals. These parameter changes enable selective adsorption of semi-permanent dyes while maintaining hair strength and integrity.
Solution Approach 2:
The patent applies local quality by making the clay compounds specifically responsive to certain dye molecules based on their chemical properties. The clay compounds selectively interact with semi-permanent dye molecules through adsorption, while leaving permanent dyes and hair structure unaffected, thus achieving localized color removal without compromising overall hair strength.
3Reliability
If traditional color removal methods are used, then semi-permanent dye is removed, but permanent dye is also affected
Solution Approach 1:
The patent applies local quality by making the clay compounds specifically responsive to certain dye molecules based on their chemical properties. The clay compounds selectively interact with semi-permanent dye molecules through adsorption, while leaving permanent dyes and hair structure unaffected, thus achieving localized color removal without compromising overall hair strength.
Solution Approach 2:
The patent introduces clay compounds as intermediary substances that mediate between the hair fiber and the dye molecules. The clay compounds selectively adsorb semi-permanent dye molecules from the hair through their porous structure and surface area, enabling color removal without requiring harsh oxidizing agents that would damage the hair.
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 compositions effectively remove semi-permanent dyes with minimal impact on hair health, enabling consumers to achieve desired hair colors, tones, and/or shades without the need for subsequent hair coloring steps or harsh chemicals.
Implementation Method 1
Compositions comprising clay compounds and solvents, optionally with surfactants, thickeners, amino acids, or salts, are used to selectively remove semi-permanent dyes from hair
Data Source
AI summary
The disclosure relates to compositions and methods for altering the color of hair, the compositions comprising at least one color-removing agent chosen from clay compounds and at least one solvent.