Oxidative Hair Dye Composition Stabilization
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Solution Overview
Problem
Oxidative hair dye compositions often warm up and increase in volume, leading to foaming and inhomogeneous application, especially when coloring hair with large color differences or previous treatments.
Innovation Solution
Incorporating magnesium sulphate into the oxidative dye composition, which prevents warming and volume increase, ensuring a homogeneous application by maintaining a stable mixture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If oxidative dye composition is mixed without magnesium sulphate, then the oxidizing reaction proceeds normally, but the mixture warms up and increases volume causing foaming and inhomogeneous application
Solution Approach 1:
The invention introduces magnesium sulphate as a stabilizing agent that changes the physical-chemical parameters of the oxidative dye composition. Specifically, it suppresses the exothermic reaction and volume expansion that normally occur during mixing, thereby preventing foaming and ensuring homogeneous application without compromising the oxidizing capability.
2Stability of the object's composition
If magnesium sulphate is added to the oxidative dye composition, then warming and volume increase are prevented, but the composition becomes more complex
Solution Approach 1:
Magnesium sulphate acts as an intermediary substance that mediates between the oxidizing agent and the hair dye components. It controls the reaction process by preventing uncontrolled exothermic reactions and volume expansion, while maintaining the essential coloring function. The addition of this single intermediary component resolves the stability issue without requiring complex system redesign.
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 use of magnesium sulphate in the oxidative dye composition results in a stable mixture that allows for uniform hair coloring, even on hair with significant color variations, by preventing foaming and ensuring consistent application.
Implementation Method 1
Oxidative dyeing composition is prepared by mixing an aqueous composition comprising at least one oxidizing agent and another composition comprising at least one hair dye... the mixture warms up and also increases its volume
Data Source
AI summary
The present invention is related to an oxidative colouring composition for keratin fibres especially human hair. The present invention is a composition comprising at least one hair dye and at least one magnesium salt. Furthermore, it is the use of at least one magnesium salt in a composition comprising at least one hair dye for preventing warming up and increase of its volume upon mixing with an aqueous composition comprising at least one oxidizing agent. Present invention is at the same time on the process for colouring keratin fibres with the use of the compositions..