Adhesive Patch Pinching Piece for Release Sheet Removal
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Solution Overview
Problem
Conventional adhesive patches face difficulties in easy application and manufacturing due to issues with releasing sheets, such as leakage of medicinal properties, wrinkling, and increased manufacturing costs, particularly when using configurations with multiple release sheets and complex folding processes.
Innovation Solution
An adhesive patch design featuring a support with a pressure-sensitive adhesive layer, a releasable release sheet with weakened parts for easy division, and a pinching piece forming sheet that covers these weakened parts, allowing for easy release and positioning without the need for complex folding or additional anti-releasing means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two release sheets are placed on the pressure-sensitive adhesive agent layer with folded portions or butting ends to enable easy removal, then ease of operation is improved, but medicinal properties leak out from the superposed or butting portions
Solution Approach 1:
The invention extracts the pinching function from the release sheet itself and implements it through a separate pinching piece that is adhered to the release sheet. This separation allows the release sheet to remain simple and flat without folds or butting portions, eliminating medicinal property leakage, while the pinching piece provides the necessary gripping functionality for easy removal.
2Ease of operation
If release sheets are folded or butted against each other to create pinching portions, then ease of operation is improved, but device complexity increases due to folding processes and positioning requirements
Solution Approach 1:
The invention extracts the pinching function from the release sheet structure itself and implements it through a separate pinching piece that is adhered to the release sheet. This separation eliminates the need for complex folding processes and precise positioning of multiple release sheets, significantly reducing manufacturing complexity while maintaining ease of operation.
Solution Approach 2:
The pinching piece acts as an intermediary element between the user's fingers and the release sheet. Instead of requiring the release sheet itself to have complex folded structures for pinching, the intermediary pinching piece provides the gripping surface, simplifying both the release sheet design and the manufacturing process.
3Ease of manufacture
If a single release sheet is used without folding or butting, then manufacturing is simplified, but ease of operation deteriorates due to difficulty in gripping and removing the release sheet
Solution Approach 1:
The pinching piece serves as an intermediary that attaches to the simple, flat release sheet to provide the necessary gripping functionality. This allows the release sheet itself to remain simple for easy manufacturing, while the pinching piece enables easy operation by providing fingers with something to pinch and pull for removal.
Solution Approach 2:
The invention segments the release mechanism into two distinct components: a simple release sheet for coverage and a separate pinching piece for manipulation. This segmentation allows each component to be optimized independently - the release sheet for manufacturing simplicity and the pinching piece for ease of operation.
Data Source
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AI summary
An adhesive patch easily applied to the skin. An adhesive patch 10 according to the present invention includes a support 12, a pressure-sensitive adhesive agent layer 14 provided on one surface of the support, a release sheet 16 which is releasably attached to the pressure-sensitive adhesive agent layer, and a weakened part 20 which is formed in the release sheet, that is for easily dividing the release sheet, and further, a pinching piece forming sheet 18 is fixed so as to cover the weakened part 20 on the release sheet, and portions of the pinching piece forming sheet other than the fixed portions 22 function as pinching pieces 18a and 18b, and in the pinching piece forming sheet as well, a weakened part 20 for easily dividing the release sheet is formed at a position corresponding to the weakened part of the release sheet.