Keratin Fiber Decolorization via Hydrogen Peroxide Carrier
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Solution Overview
Problem
Current hair dye removal methods using hydrogen peroxide can cause significant damage to hair fibers, leading to brittleness and breakage, especially with repeated use, and are insufficient for completely stripping permanent oxidation dyes.
Innovation Solution
A kit containing a cosmetic decolorizing agent with hydrogen peroxide in a cosmetic carrier, used in conjunction with a dyeing agent comprising CH-acidic and reactive carbonyl compounds, allows for gentle and complete color stripping of keratin-containing fibers without the need for organic peroxo compounds or inorganic per-salts, minimizing fiber damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hydrogen peroxide is used as a decolorizing agent, then color stripping effectiveness is improved, but fiber damage increases leading to brittleness and breakage
Solution Approach 1:
The patent changes the chemical parameters of the decolorizing system by introducing organic peroxo compounds (peracetic acid, perbenzoic acid) and inorganic per-salts (persulfates, percarbonates) in combination with hydrogen peroxide. This parameter change enables complete stripping of permanent oxidation dyes while the cosmetic carrier system controls the release and concentration of oxidizing agents, reducing fiber damage while maintaining effectiveness.
Solution Approach 2:
The patent creates a composite decolorizing system combining multiple oxidizing agents (hydrogen peroxide, organic peroxo compounds, inorganic per-salts) with a cosmetic carrier. This composite approach allows the different components to work synergistically, achieving complete color removal while the cosmetic carrier protects the fiber structure from excessive damage.
2Reliability
If conventional decolorizing agents are used, then color removal is achieved, but complete stripping of permanent oxidation dyes is insufficient
Solution Approach 1:
The patent merges multiple decolorizing mechanisms by combining hydrogen peroxide with organic peroxo compounds and inorganic per-salts. This combination provides both the gentle action of hydrogen peroxide and the potent stripping capability of persulfates and peracids, achieving complete removal of permanent oxidation dyes while maintaining fiber integrity.
3Productivity
If repeated decolorization treatments are performed, then complete color removal is achieved, but cumulative fiber damage increases
Solution Approach 1:
The cosmetic carrier acts as an intermediary system that controls the delivery and concentration of oxidizing agents. It modulates the decolorization process to be effective yet gentle, allowing repeated treatments without cumulative damage by regulating the interaction between decolorizing agents and hair fiber.
Solution Approach 2:
The cosmetic carrier provides protective cushioning to the fiber structure before and during the decolorization process. This pre-protection mechanism allows repeated treatments to be performed without cumulative damage by buffering the harsh effects of oxidizing agents on the hair cuticle and cortex.
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 enables effective and gentle decolorization of hair dyed with oxo dyeing agents, maintaining the integrity of hair fibers and ensuring they remain soft and combable after the color removal process.
Implementation Method 1
The present invention relates to the use of a decolorizing agent containing hydrogen peroxide in a cosmetic carrier for decolorizing dyed keratin-containing fibers
Data Source
AI summary
Use of a composition comprising hydrogen peroxide in a cosmetic vehicle allows gentle discoloring of permanently colored, keratinous fibers which have been colored with a specific coloring composition. The coloring composition used for coloring the fibers comprises, in a cosmetic vehicle, a combination of at least one CH-acidic compound with at least one reactive carbonyl compound. The discoloring composition contains preferably between 0% and 15% by weight of hydrogen peroxide and has the effect, in particular in a working time of 5 to 20 minutes even without the use of organic peroxo compounds and in the absence of inorganic persalts, of effective color removal with simultaneous gentle treatment of the fibers.