Multi-layer Makeup Protection Spray Mist Fineness
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Solution Overview
Problem
Existing makeup protection cosmetics fail to achieve both fine mist formation upon spraying and effective makeup protection, with previous solutions either causing smudging or having poor durability.
Innovation Solution
A multi-layer makeup protection cosmetic comprising an oil-soluble film-forming agent, 40-95% water, and a volatile oil agent, without exceeding 0.25% emulsifier content, which includes a silicone-based film-forming agent like trimethylsiloxysilicic acid and optionally a silicone wax, for use in a spray container without propellants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If conventional makeup protection cosmetics are used, then makeup durability is improved, but mist fineness deteriorates (water droplets form on skin)
Solution Approach 1:
The patent changes the physical and chemical parameters of the cosmetic formulation by specifying precise ranges for water content (40-95 mass%), volatile oil content (0.1-20 mass%), and film-forming agent content (0.1-10 mass%). These parameter adjustments enable the formulation to produce fine mist while maintaining makeup protection durability, resolving the contradiction between mist fineness and makeup durability.
Solution Approach 2:
The patent uses a composite formulation combining multiple components: water, volatile oil, oil-soluble film-forming agents, and optionally silicone wax. This composite material approach allows the cosmetic to achieve both fine mist formation and effective makeup protection by leveraging the complementary properties of each component.
2Manufacturing precision
If emulsifier content is increased to improve mist formation, then mist fineness is improved, but makeup protection effect deteriorates
Solution Approach 1:
The patent extracts or removes the emulsifier component from the formulation, setting emulsifier content to less than 0.25 mass%. This extraction eliminates the trade-off between emulsifier-induced mist fineness and makeup protection effectiveness, as the formulation achieves fine mist through alternative mechanisms involving volatile oil and film-forming agents without compromising protection.
3Object-generated harmful factors
If water content is increased to reduce stickiness, then low stickiness is improved, but mist fineness deteriorates
Solution Approach 1:
The patent optimizes the water content parameter within a specific range (40-95 mass%) and balances it with volatile oil content (0.1-20 mass%). This parameter optimization allows the formulation to achieve low stickiness while maintaining fine mist formation, resolving the contradiction between these two 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 cosmetic provides excellent fineness of mist, long-lasting makeup protection, low stickiness, and a comfortable application experience, maintaining makeup integrity for up to 8 hours with high water and sebum resistance.
Implementation Method 1
a volatile oil agent
Implementation Method 2
an oil-soluble film-forming agent
Data Source
AI summary
A main object of the present technology is to provide a makeup protection cosmetic for use by spraying over makeup, which is a makeup protection cosmetic that is excellent in terms of the fineness of the mist upon use by spraying and yet has an excellent makeup protection effect. The present technology can provide a multi-layer makeup protection cosmetic for use by spraying over makeup, containing the following components (A) to (C): component (A): an oil-soluble film-forming agent, component (B): 40 to 95 mass% of water, and component (C): a volatile oil agent.