Fiber-Enhanced Sprayable Cosmetic Composition for Uniform Hair Coverage
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Solution Overview
Problem
Existing sprayable hair cosmetics face challenges in achieving uniform application due to the spray pattern and distribution of solid cosmetic active ingredients, particularly in dry shampoos, which often result in non-uniform coverage.
Innovation Solution
Incorporating fibers into the sprayable cosmetic compositions, specifically using fibers with a length-to-diameter ratio above 3:1, suspended in ethanol and propelled by a suitable gas mixture, enhances the uniformity and coverage of the spray pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If solid cosmetic active ingredients are sprayed onto hair, then cleansing and refreshing effects are achieved, but uniform application and spray pattern distribution are poor
Solution Approach 1:
The patent changes the physical state of the active ingredient from solid particles to liquid form by dissolving starch and other cosmetic agents in ethanol. This parameter change from solid to liquid state enables uniform distribution through spray application while maintaining the fat-absorbing and cleansing properties of the active ingredients.
Solution Approach 2:
The patent introduces ethanol as an intermediary solvent that dissolves the cosmetic active ingredients and propellant, creating a homogeneous liquid mixture. This intermediary medium enables uniform spray distribution and improves application properties while allowing the active ingredients to function effectively upon contact with hair.
2Reliability
If solid ingredients are used in sprayable cosmetic compositions, then active cosmetic effects are achieved, but application uniformity deteriorates
Solution Approach 1:
The patent transforms the physical state of cosmetic active ingredients from solid to liquid by dissolving them in ethanol. This parameter change ensures reliable delivery of cosmetic effects while achieving uniform spray distribution, as the liquid solution can be evenly atomized without the clumping issues of solid particles.
Solution Approach 2:
The patent creates a composite liquid composition combining ethanol, propellant, and dissolved cosmetic active ingredients (starch, oils, fragrances). This composite material integrates multiple functional components into a single homogeneous phase that provides both reliable cosmetic effects and uniform spray application properties.
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 addition of fibers results in a more uniform spray pattern and increased sprayed area, improving the application properties of the cosmetic compositions.
Implementation Method 1
aerosol preparations containing microfibers are sprayed onto the hair
Implementation Method 2
Incorporating fibers into the sprayable cosmetic compositions, specifically using fibers with a length-to-diameter ratio above 3:1, suspended in ethanol
Implementation Method 3
These active ingredients are usually starch or starch derivatives, which, due to their fat-absorbing properties, are applied to the hair as an essential ingredient in dry shampoos
Data Source
AI summary
Cosmetic composition for the cosmetic treatment of keratin fibers, comprising: (a) 0.1 to 5.0 wt% fibers; (b) 5.0 to 19 wt% ethanol; (c) 78 to 94 wt% propellant.