Low-Water Aerosol Hair Styling Composition with Anionic Polymers
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Solution Overview
Problem
Existing hair cosmetic compositions fail to provide a satisfactory wax effect without weighing down the hair, and their packaging often leads to uneven application and excessive usage of volatile organic compounds (VOCs).
Innovation Solution
A hair cosmetic composition with a water content of less than or equal to 10% by weight, packaged in an aerosol device, comprising anionic fixing polymers, polyols, liquid fatty alcohols, and propellant gases, which allows for controlled application and a wax effect without weighing the hair down.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional aerosol hair compositions are used to provide holding effect, then hair shaping and fixing properties are improved, but volatile organic compounds (VOCs) content increases and ecological compatibility deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters by replacing traditional high-VOC alcoholic media with a water-based system containing specific polymers (acrylic acid/acrylamide copolymer, polyvinylpyrrolidone), polyols (glycerol, propylene glycol), and fatty alcohols. This parameter change maintains the aerosol delivery mechanism and holding properties while reducing VOC content to below 50% by weight, achieving ecological compatibility without sacrificing hair shaping effectiveness.
2Ease of manufacture
If wax-effect compositions are packaged in tubes or containers with lids, then the composition can be stored, but application quantity control is poor and uniform distribution is difficult
Solution Approach 1:
The patent utilizes aerosol technology (pneumatic principle) by incorporating propellant gases (compressed gas or liquefied gas) to deliver the hair care composition through a spray mechanism. This enables precise control of application quantity through actuation, ensures uniform distribution across the hair surface via aerosol dispersion, while the composition remains stored in a pressurized container, solving both storage and application control requirements.
3Object-generated harmful factors
If existing aerosol compositions are formulated to reduce water content, then VOC content is reduced, but the wax effect and styling properties deteriorate
Solution Approach 1:
The patent employs a composite formulation combining multiple functional components: water-soluble polymers (acrylic acid/acrylamide copolymer with 0.1-5% concentration, polyvinylpyrrolidone with 0.1-5% concentration) for holding and styling, polyols (glycerol and/or propylene glycol with 5-50% concentration) for conditioning and moisture retention, and fatty alcohols (cetyl alcohol and/or stearyl alcohol with 1-10% concentration) for wax effect and styling. This composite material approach maintains effective styling properties while keeping VOC content below 50% by weight.
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 provides a natural and lasting hold, adds shine, and reduces VOC content, ensuring easy application and maintaining the hair's natural shine while offering a long-lasting styling effect.
Implementation Method 1
packaged in an aerosol device, comprising one or more anionic fixing polymer(s), one or more polyol(s), one or more liquid fatty alcohol(s), one or more lower C1-C4 monoalcohols, and one or more propellant gases
Data Source
AI summary
This application relates to a hair cosmetic composition with a water content of 10% or less by weight relative to the total weight of the composition, packaged in an aerosol device and comprising: one or more anionic fixing polymers, one or more polyols, one or more liquid fatty alcohols, one or more lower C1-C4 monoalcohols, and one or more propellant gases. This application also relates to the uses of this composition, particularly for styling and shaping hair, specifically to provide a styling effect to keratin fibers.