Wet Label Submergence Detection via Segmented Coating Layers
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Solution Overview
Problem
Conventional wet labels attached to electronic devices are prone to discoloration due to external environmental changes and user contact, making it difficult to determine if the device has been submerged, leading to unnecessary disassembly and increased maintenance costs.
Innovation Solution
A wet label design featuring a check hole in the device case with an adhesive layer, first and second coating layers, and a submergence check layer that is discolored by internal environmental changes, allowing for precise determination of submersion through the check hole without external interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wet label is attached on the external surface of the device, then it is easy to observe the submergence status, but the label is prone to discoloration from external environmental changes and user contact, leading to false positives
Solution Approach 1:
The wet label is segmented into multiple functional layers: a submergence check layer containing ink that reacts to water, and a protective layer that blocks external environmental factors. This segmentation allows the label to be placed externally for easy observation while the protective layer prevents false discoloration from moisture exposure or user contact.
Solution Approach 2:
The protective layer acts as an intermediary between the external environment and the submergence check layer. It selectively blocks moisture and environmental factors from reaching the ink while allowing the label to indicate genuine submergence events, thus resolving the contradiction between external accessibility and protection from false positives.
2Ease of repair
If the wet label is attached on the external surface, then maintenance and inspection are simplified, but disassembly is still required to determine the cause of defects
Solution Approach 1:
The wet label is pre-configured with the protective layer and submergence check layer in a specific arrangement that allows it to be attached externally to the device. This preliminary design enables maintenance personnel to inspect the label without disassembling the device, and when disassembly is needed, the label is already in position to provide immediate information about submergence history.
3Ease of manufacture
If the wet label lacks a protective coating layer, then the structure is simpler and manufacturing is easier, but the label discolors from any liquid contact including external environmental changes
Solution Approach 1:
The protective layer is applied selectively to specific areas of the wet label structure. Rather than coating the entire label uniformly, the protective coating is positioned to shield the submergence check layer from external environmental factors while maintaining the overall simplicity of the manufacturing process. This localized approach balances manufacturing ease with detection accuracy.
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
This design prevents false positives from external changes and user contact, enabling accurate detection of submersion without disassembly, thereby reducing maintenance costs and prolonging device life.
Implementation Method 1
A wet label for an electronic device within a check hole of an electronic device case, the web label including a submergence check layer capable of being discolored according to an environmental change (e.g., water, moisture, dampness, etc.) coming to the lateral surface of the submergence check layer
Implementation Method 2
the submergence check layer is provided with first and second coating layers. In this case, it is possible to block the environmental change coming to the upper and lower portions of the wet label and to protect the wet label
Implementation Method 3
an adhesive layer attached on a peripheral lower portion inside the check hole
Data Source
AI summary
Disclosed is a wet label that includes a submergence check layer capable of being discolored according to an environmental change (e.g., water, moisture, dampness, etc.). The disclosed wet label includes an adhesive layer; a coating layer provided under the adhesive layer; and a submergence check layer provided under the coating layer, which is discolored according to an internal environmental change, wherein the coating layer blocks environment changes from contacting the submergence check layer. Furthermore, a discolored part of the submergence check layer may be visually checked.