Alkaline Hair Bleaching Agent with Sodium Polyacrylate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The production and packaging of oxidative hair bleaching agents are energy-intensive and inefficient due to the need for complex cream formulations, high energy consumption in processing, and challenges in mixing and applying the components effectively, leading to difficulties in achieving a homogeneous and stable application mixture.
Innovation Solution
A hair bleaching agent comprising 70-95% water, an alkalizing agent, surfactants, sodium polyacrylate, and a linear saturated alkanol, with a pH of 10-11, which is mixed with an oxidizing agent preparation containing hydrogen peroxide to form a paste-like consistency for improved application and bleaching performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If complex cream formulations are used for oxidative hair bleaching agents, then the viscosity and stability are improved, but the production and packaging become energy-intensive and complex
Solution Approach 1:
The patent changes the pH parameter to an alkaline range (pH 9-11) and uses this alkaline environment to stabilize the hydrogen peroxide solution without requiring complex cream formulations. The alkaline pH itself acts as the stabilizing mechanism, eliminating the need for energy-intensive cream production processes while maintaining solution stability.
Solution Approach 2:
The patent extracts and eliminates the complex cream formulation components from the system, using only a simplified aqueous hydrogen peroxide solution with alkaline pH. This extraction removes the energy-intensive production and packaging steps associated with cream formulations while retaining the essential bleaching function.
2Stability of the object's composition
If complex cream formulations are used for oxidative hair bleaching agents, then the viscosity is improved for staying on hair, but the mixing and application become inefficient and difficult
Solution Approach 1:
The patent changes the viscosity parameter by adjusting the alkaline pH and hydrogen peroxide concentration, achieving optimal viscosity for hair retention without requiring complex cream formulations. This parameter adjustment simplifies the mixture while maintaining adequate viscosity for effective application and staying on the hair during the bleaching process.
3Productivity
If alkaline pH value is used for reaction acceleration, then the oxidative brightening performance is improved, but the hydrogen peroxide storage stability deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-adjusting the pH to alkaline range (pH 9-11) and pre-stabilizing the hydrogen peroxide solution in this alkaline environment before use. This preliminary preparation ensures both storage stability and optimal brightening performance are achieved simultaneously, eliminating the trade-off between alkaline performance and storage stability.
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 an economical, sustainable, and easy-to-mix oxidative hair bleaching process with improved viscosity and stability, ensuring effective bleaching performance and reduced energy consumption.
Implementation Method 1
the natural colourants responsible for the natural colour of the hair, especially the body's own melanin eumelanin and phaeomelin, are broken down oxidatively using oxidizing agents, such as hydrogen peroxide in particular
Implementation Method 2
This viscosity can be adjusted by polymeric thickeners in the ready-to-use whitening or bleaching agent, whereby this thickener can be contained both in the alkalizing component and in the oxidizing agent preparation
Data Source
AI summary
The object of the present disclosure are agents for oxidative hair bleaching with a pH value in the range from about 10.0 to about 11.0, containing from about 70-95% by weight of water, an alkalizing agent, from about 0.1-2% by weight of anionic, zwitterionic or amphoteric surfactant, from about 0.1-1.5% by weight of sodium polyacrylate, wherein only small amounts, if any, of linear saturated alkanols having two or three hydroxy groups and from 2 to 8 carbon atoms in the alkyl group are included. Furthermore, no saturated and unsaturated non-alkoxylated alkanols having one hydroxy group and from 1 to 50 carbon atoms in the alk(en)yl group, no saturated and unsaturated alkanecarboxylic acids with 1 to 50 carbon atoms, no crosslinked copolymer built up from acrylic acid and non-ethoxylated esters of acrylic acid with linear C10-C30 monoalcohols as monomers and no oxidizing agents are contained.