Polyamide Powder Coloring Material for Anhydrous Lip Cosmetics
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Solution Overview
Problem
Conventional cosmetic formulations, particularly anhydrous lip products, face limitations in achieving a wide range of colors due to the difficulty in using water-soluble dyes, which are not compatible with these formulations.
Innovation Solution
A cosmetic composition for lips that incorporates a polyurethane or polyamide powder with a weight average molecular weight of 200,000 or more, combined with a water-soluble dye, allowing for the use of water-soluble dyes in anhydrous formulations and providing enhanced fluorescence and color expression properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If water-soluble dyes are used in conventional anhydrous formulations, then color variety and fluorescence can be improved, but the dyes cannot be used due to incompatibility with anhydrous systems
Solution Approach 1:
The patent uses a surfactant as an intermediary substance to enable water-soluble dyes to function in anhydrous formulations. The surfactant acts as a mediator that allows the hydrophilic dye molecules to disperse and remain stable in the hydrophobic anhydrous base, resolving the incompatibility issue while maintaining color variety and fluorescence properties
2Reliability
If oil-dispersible dyes are used to ensure compatibility with anhydrous formulations, then formulation stability is improved, but color expression and fluorescence are limited
Solution Approach 1:
The patent changes the chemical parameters of the dye system by selecting specific water-soluble dyes with particular molecular structures and properties that enable them to function in anhydrous formulations when combined with appropriate surfactants. This parameter change allows the system to achieve both formulation compatibility and superior color expression with fluorescence
3Reliability
If conventional lake colors are used in anhydrous formulations, then formulation stability is maintained, but the spectrum of achievable colors is limited
Solution Approach 1:
The patent creates a composite coloring system that combines water-soluble dyes with surfactants in an anhydrous formulation. This composite approach allows the system to achieve both formulation stability and an expanded color spectrum including fluorescent hues that cannot be obtained with conventional lake colors alone
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 composition enables the use of water-soluble dyes in anhydrous formulations, resulting in vivid, fluorescent color tones with high chroma and value, expanding the color spectrum achievable in lip cosmetics beyond conventional dyes and lake colors.
Implementation Method 1
a coloring material including one or more selected from the group consisting of a polyurethane powder and a polyamide powder having a weight average molecular weight of 200,000 or more; and a water-soluble dye
Implementation Method 2
the color of an oil-dispersible dye may be improved, but the cosmetic is not applicable to water-soluble dyes... the coloring material... expresses a fluorescent color tone, has a reflectance of 100 or more
Data Source
Figure 1~2B
Figure 2C~2D
Figure 3A~3B
AI summary
The present invention relates to a novel coloring material including a polyamide powder and/or a polyurethane powder and a water-soluble dye. The coloring material of the present invention allows a water-soluble dye to be used in anhydrous formulations. Thereby, the range of use of dyes may be widened, reflectance may be excellent, and fluorescence properties may be obtained. Accordingly, the present invention may broaden the spectrum of cosmetic coloring materials used in limited applications in the cosmetic field.