Skin Smoothing Film Composition Using Silicate Ratios
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Solution Overview
Problem
Existing adhesive, contractile film formers for reducing wrinkles are plagued by skin irritation, brittleness, visibility, and non-uniform application, which are exacerbated by attempts to address these issues, and current applicators fail to apply films of optimal thickness uniformly.
Innovation Solution
A skin smoothing film composition comprising sodium silicate, polyvalent silicate, and a plasticizer, applied using a soft-tip applicator, achieving a balanced contraction, flexibility, and transparency while minimizing skin irritation and whiteness, with a uniform thickness of 5-50 microns and standard deviation less than 20% across 80% of the applied area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high levels of sodium silicate are used to achieve high to moderate immediate wrinkle reduction, then contraction effect is improved, but skin irritation increases and film brittleness increases (durability decreases)
Solution Approach 1:
The patent changes the chemical composition parameters by introducing polyvalent silicates (such as magnesium aluminum silicate) alongside sodium silicate, and optimizes the ratio of monovalent to polyvalent silicate. This parameter modification allows achieving contraction effects with reduced skin irritation and improved film durability simultaneously.
Solution Approach 2:
The patent creates a composite film-forming composition combining sodium silicate (monovalent silicate) with polyvalent silicates such as magnesium aluminum silicate. This composite approach leverages the contraction properties of sodium silicate while the polyvalent silicate components mitigate irritation and improve film flexibility, resolving the contradiction between contraction effect and skin compatibility.
2Duration of action of stationary object
If plasticizers are added to combat film brittleness, then film durability is improved, but whiteness increases and contraction is reduced
Solution Approach 1:
The patent modifies the composition parameters by optimizing the ratio of monovalent to polyvalent silicates and controlling plasticizer content within specific ranges. This parameter optimization achieves film durability without excessive whiteness or loss of contraction, balancing multiple competing requirements.
Solution Approach 2:
The patent applies different functional components in specific proportions - polyvalent silicates provide durability and flexibility, while monovalent silicates provide contraction. The local quality of each component is optimized for its specific function, and their combined effect resolves the contradiction between durability and whiteness/contraction.
3Ease of operation
If finger application is used to apply the film, then application simplicity is maintained, but film uniformity and thickness control are poor (splotchy application)
Solution Approach 1:
The patent introduces a specially designed applicator as an intermediary tool between the composition and the skin. This applicator with specific properties (soft tip, appropriate size, material characteristics) enables uniform film deposition at controlled thickness while maintaining ease of use, resolving the contradiction between simple application and precise uniformity.
4Illumination intensity
If the film is made more transparent to reduce visibility, then cosmetic acceptability is improved, but film performance (contraction and flexibility balance) becomes harder to maintain
Solution Approach 1:
The patent optimizes composition parameters including silicate ratios, plasticizer content, and film thickness to achieve transparency while maintaining contraction and flexibility performance. The controlled film thickness range (5-50 microns) is a key parameter change that enables transparency without sacrificing performance.
Solution Approach 2:
The patent employs thin film technology with controlled thickness (5-50 microns) to achieve transparency. The flexible shell properties are maintained through the polyvalent silicate components that provide elasticity and adaptability, allowing the thin transparent film to maintain its performance characteristics.
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 solution provides excellent initial and lasting contraction, is flexible and non-irritating, with a transparent film that maintains performance and consumer preference, as indicated by an Overall Performance Score lower than 2.8, and is compatible with other cosmetic products.
Implementation Method 1
adhesive, contractile film formers... A select group of film formers are also adhesive to skin and even contractile. Wrinkles, in their simplest form, are crevices or valleys in the skin. When an adhesive, contractile film former is applied, the skin at the bottom of the valley or crevice may be pulled to the surface
Implementation Method 2
adhesive, contractile film formers... film formers that when applied to skin, leave a pliable, cohesive and continuous covering... Some of these are also adhesive to skin and even contractile
Data Source
AI summary
A skin smoothing film made from a skin smoothing composition that comprises sodium silicate, polyvalent silicate and water. Moreover, the film may be made from a composition that has a contraction value of from about 30% to about 160%. The film thickness is from about 5 microns to about 50 microns, preferably from about 10 microns to about 40 microns, when applied. The standard deviation of the film over the area covered is less than about 30, preferably less than about 25.