Peroxide Oxidizing Composition with pH-Dependent Dyes for Hair Bleaching
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Solution Overview
Problem
Existing hair bleaching compositions often result in unaesthetic orange or reddish reflections due to uneven decomposition of melanin pigments, and current solutions are either unsatisfactory or limited in application, forming aggregates with residual colors and being restricted to specific bleaching methods.
Innovation Solution
A peroxide-based oxidizing composition containing hydrogen peroxide, a first dye that assumes an azure or blue color at pH above 7, and optionally a second dye that assumes a red color at the same pH, combined with a bleaching or dyeing composition to create a chromatic antagonist, effectively eliminating unwanted reflections by forming a stable emulsion that counteracts these tones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hydrogen peroxide-based oxidizing compositions are used for hair bleaching, then the hair can be lightened by disrupting melaninic granules, but unaesthetic orange or reddish reflections remain due to uneven decomposition of melanin pigments
Solution Approach 1:
The patent applies matting agents (dyes) that counteract the unwanted orange/reddish reflections by introducing complementary colors (blue/green). The harmful color residues are transformed into an aesthetic result through chromatic opposition, where the matting agent's color combines with the reflection color to produce a neutral or desired shade.
Solution Approach 2:
The composition combines multiple components: hydrogen peroxide (oxidizing agent), matting agents (dyes for color correction), and optionally boosting oxidizing agents. This composite formulation simultaneously achieves lightening and color correction functions in a single application.
2Object-affected harmful factors
If matting agents are added to counteract reflection colors, then unaesthetic tones can be eliminated, but the composition becomes more complex and may form aggregates with residual colors
Solution Approach 1:
The patent merges the lightening function (hydrogen peroxide) and the matting function (dyes) into a single unified composition. This combined formulation eliminates the need for separate applications and reduces the risk of aggregation issues that occur when components are added separately to already-bleached hair.
Solution Approach 2:
The composition is designed to maintain stability across a wide pH range (2-12), allowing it to remain effective whether used alone or combined with alkaline bleaching agents. This parameter optimization prevents precipitation and aggregation while ensuring both lightening and matting activities function properly.
3Object-affected harmful factors
If existing matting compositions are used, then color reflections can be counteracted, but they are limited to specific bleaching methods and form aggregates with residual components
Solution Approach 1:
The composition is designed to be universally applicable with various bleaching systems (persulfates, carbonates, silicates) and can be used both alone and in combination. The matting agents are selected to be compatible with different oxidizing systems, making the composition versatile across multiple bleaching methods and hair types.
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 solution effectively disperses and solubilizes pigments, allowing better penetration into hair fibers and easier application, providing a comprehensive and effective method to eliminate unaesthetic reflections in hair bleaching and dyeing, applicable across various bleaching and dyeing products.
Implementation Method 1
The hydrogen peroxide in an alkaline environment is destabilized, thus releasing oxygen that attacks the melanin pigments present on the hair
Implementation Method 2
ammonium, potassium and sodium persulfates that develop oxygen in an alkaline environment through an oxidation-reduction reaction
Implementation Method 3
at least a first dye which per se assumes an azure or blue colour at a pH higher than 7, preferably at a pH between 8 and 11.5, and optionally at least one second dye which per se assumes a red colour at a pH higher than 7
Data Source
AI summary
The present invention relates to a fluid/creamy pigmented hydrogen peroxide-based oxidising composition, to be used in combination with persulfates-based hair bleaches or with dyes, lightening, super-lightening products. The composition of the semi-finished product includes hydrogen peroxide in various titles in proportions from 1% to 12% by weight, plus other substances in addition to a first dye which provides the semi-finished product with a yellow/green colour at an acid pH. By combining the oxidising composition (first product) with bleaching products of various nature/lightening dyes (second product) in an emulsion, the pH of the emulsion becomes strongly alkaline, from the initial 2-3 it may increase up to 11.5. In this pH transition from acid to alkaline, the oxidising emulsion changes its colour from yellow/green to blue. In the pH passage of the emulsion from acid values to alkaline values, the blue that has formed is chromatically active against the orange and red reflections, present on the hair as residual colours due to previous treatments.