Emulsion Ink Transfer Device for Keratin Materials
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Solution Overview
Problem
Conventional makeup inks for keratin materials, such as skin, dry quickly, making transfer difficult and resulting in irregular and imprecise applications, and they lack stability, especially when stored for extended periods, leading to unsatisfactory results.
Innovation Solution
A cosmetic ink in the form of an oil-in-water (O/W) or water-in-oil (W/O) emulsion, liquid at 20°C, is used for digital printing on a transfer surface, allowing for precise and customizable applications without the need for solvents, enhancing pattern stability and adhesion, and maintaining transferability over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional makeup inks are used for digital printing, then the printing process is simple, but the ink dries quickly making transfer onto keratin materials difficult and resulting in irregular and imprecise applications
Solution Approach 1:
The patent changes the physical-chemical parameters of the ink by formulating it as an emulsion system with specific viscosity and composition. The ink maintains a liquid state with controlled evaporation rate, allowing sufficient time for transfer while ensuring precise pattern reproduction on keratin materials.
Solution Approach 2:
The invention uses a composite emulsion formulation combining water, oils, surfactants, and pigments. This composite structure allows the ink to maintain stability during storage while remaining transferable to keratin materials, resolving the contradiction between quick drying and transferability.
2Manufacturing precision
If solvent is applied to moisten the transfer surface to enable transfer, then transfer onto keratin materials becomes possible, but the amount of solvent cannot be metered precisely leading to running and irregular makeup results
Solution Approach 1:
The patent extracts the solvent step from the transfer process entirely. The ink formulation is modified to be transferable without additional solvent application, eliminating the precision control issues associated with solvent metering while maintaining transfer effectiveness.
Solution Approach 2:
The ink's rheological parameters are adjusted through emulsion formulation to enable direct transfer without solvent. The viscosity and composition are optimized so the ink transfers cleanly with precise pattern reproduction, eliminating the need for solvent-based moisture control.
3Stability of the object's composition
If conventional makeup coatings are used, then the application process is straightforward, but the pattern lacks stability and deteriorates quickly after transferring
Solution Approach 1:
The patent employs a composite emulsion formulation containing water, oils, surfactants, and pigments in specific proportions. This composite structure provides long-term pattern stability on keratin materials while the formulation complexity is managed through systematic ingredient selection and ratio optimization.
Solution Approach 2:
The chemical composition parameters of the ink are optimized to enhance pattern stability. The emulsion formulation includes ingredients that bind effectively to keratin materials, ensuring the transferred pattern remains stable over time despite the increased formulation complexity.
4Reliability
If an emulsion-based ink is used for digital printing, then transferability and pattern stability are improved, but the ink formulation becomes more complex
Solution Approach 1:
The patent optimizes the emulsion formulation parameters including viscosity, pH, and ingredient ratios to ensure reliable transfer performance. The complexity is managed by focusing on key critical parameters rather than attempting to control all possible variables, achieving consistent transfer reliability.
Solution Approach 2:
The emulsion is formulated as a composite material with carefully selected components that work synergistically. This approach improves transfer reliability while controlling formulation complexity through systematic ingredient selection and standardized manufacturing procedures.
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 emulsion-based ink facilitates precise, stable, and customizable makeup applications on keratin materials without solvents, maintaining transferability and pattern integrity both immediately and after storage, offering a broader range of colors and improved adhesion.
Implementation Method 1
the ink being in the form of an oil-in-water (O/W) or water-in-oil (W/O) emulsion and comprising an emulsifying surfactant
Implementation Method 2
improves the adhesion of the ink to the transfer surface, which avoids risks of detachment during the manufacture or during the handling of the device before transfer onto the keratin materials
Implementation Method 3
the ink being in the form of an oil-in-water (O/W) or water-in-oil (W/O) emulsion and comprising an emulsifying surfactant
Implementation Method 4
comprising an emulsifying surfactant
Data Source
AI summary
The present invention relates to a process for manufacturing a device for applying a cosmetic product by transfer onto human keratin materials, comprising the step consisting in printing, using at least one digital printer, onto a surface a cosmetic ink, the ink being in the form of an oil-in-water or water-in-oil emulsion comprising an emulsifier, the ink being liquid at 20° C.