Thin Film Affixing Device with Transparent Hydrophilic Layer
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Solution Overview
Problem
Existing thin film affixing devices face challenges in accurately positioning and affixing thin films to adherend surfaces, such as discolored skin areas, due to difficulties in aligning the film with the surface during application.
Innovation Solution
A thin film affixing device featuring a transparent main portion with a temporary adherend portion and a hydrophilic layer, allowing for precise alignment and attachment of the thin film to the adherend surface through a holding member that enables clear visibility and accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a traditional thin film affixing device is used, then the device structure is simple, but the positioning accuracy of the thin film on the adherend surface deteriorates
Solution Approach 1:
A transparent main portion is introduced as an intermediary component between the thin film and the adherend surface. This transparent main portion includes a temporary adherend portion that allows the thin film to be temporarily attached, and its transparency enables the user to view the adherend surface through it for accurate positioning before affixing
Solution Approach 2:
The device adds a dimensional aspect of transparency/visibility by making the main portion transparent, allowing the user to see through the device to the adherend surface. This creates a new dimension of optical access that enables visual alignment without compromising the mechanical affixing function
2Strength
If the thin film is pressed against the adherend surface, then the affixing strength is improved, but the ability to check positional relationship deteriorates
Solution Approach 1:
The temporary adherend portion allows the thin film to be preliminarily attached to the transparent main portion before final affixing to the adherend surface. This preliminary attachment enables the user to check and adjust the positional relationship while the film is still temporarily held, and ensures the film is properly positioned before pressing against the adherend surface for final affixing
3Reliability
If the hydrophilic layer is formed on the first surface, then the temporary adhesion capability is improved, but the device complexity increases
Solution Approach 1:
The surface properties of the temporary adherend portion are modified by forming a hydrophilic layer, which changes the surface energy and wettability parameters. This parameter change enhances the temporary adhesion capability between the thin film and the transparent main portion, ensuring reliable positioning during the affixing process
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
Enables high-accuracy affixing of thin films to discolored areas, improving the precision and ease of application while maintaining the device's portability and protection of the hydrophilic layer.
Implementation Method 1
a transparent hydrophilic layer formed on the first surface of the main portion so as to serve as the temporary adherend portion
Data Source
AI summary
A thin film affixing device used to affix a thin film to an adherend surface, such as the face of a user, is provided. The thin film affixing device is configured to include a main portion having a first surface and a second surface, where the first surface has a temporary adherend portion that allows the thin film to be temporarily attached thereto, a holding member that holds the main portion so that the first side is viewable from the second side through the main portion and the temporary adherend portion is capable of pressing against the adherend surface, and a transparent hydrophilic layer formed on the first surface of the main portion so as to serve as the temporary adherend portion.