Adhesive Sheet With Slits For Neck Movement
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Solution Overview
Problem
Adhesive sheets used on the neck tend to peel off easily due to its curved surface and extensive movements, especially during activities like jogging or outdoor labor, where sweat and movement exacerbate the issue.
Innovation Solution
An adhesive sheet design featuring a sheet body with a gel-covered first region and a second region with reduced or no gel, incorporating slits that reduce wrinkles and stretchability loss, along with tapered or curved slit ends, to enhance adhesion and prevent peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the adhesive sheet is made with a gel layer to adhere to the skin, then the adhesion to the skin is improved, but the sheet body becomes rigid and wrinkles easily when the neck moves
Solution Approach 1:
The sheet body is divided into a first region with gel and a second region without gel or with less gel. This segmentation allows the gel region to provide adhesion while the non-gel region maintains flexibility and stretchability, preventing wrinkles when the neck moves.
Solution Approach 2:
Different regions of the sheet body have different gel amounts. The first region has sufficient gel for adhesion, while the second region has reduced or no gel to maintain flexibility. This local quality differentiation resolves the contradiction between adhesion and wrinkle prevention.
2Reliability
If the sheet body is made fully gel-covered for maximum adhesion, then the adhesion strength is improved, but the stretchability and flexibility are reduced
Solution Approach 1:
The sheet body is segmented into a first region with gel for adhesion and a second region without gel for flexibility. This segmentation allows the sheet to maintain both adhesion strength and stretchability by distributing gel only where needed.
Solution Approach 2:
The gel is applied locally in the first region rather than uniformly across the entire sheet. This local quality approach ensures adhesion where required while preserving stretchability in the gel-free second region.
3Temperature
If the adhesive sheet is adhered to the curved neck surface, then the cooling effect is improved, but the sheet peels off easily due to neck movements
Solution Approach 1:
The sheet body is segmented into adhesive and flexible regions, allowing it to conform to the curved neck surface while resisting peeling. The flexible second region accommodates neck movements without causing the sheet to peel off.
Solution Approach 2:
The sheet body is designed with dynamic flexibility through the gel-free second region, allowing it to adapt to neck movements. This dynamic property enables the sheet to maintain adhesion on the curved neck surface during various movements.
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 adhesive sheet effectively resists peeling even with neck movements, maintaining adhesion and providing a cooling effect, making it suitable for prolonged use during activities like jogging and outdoor labor.
Implementation Method 1
a sheet body 110 having a first region 111 having a surface on which a gel is laid out; since the sheet body has the first region having a surface on which a gel is laid out, the sheet body adheres to the skin
Data Source
AI summary
An adhesive sheet that is resistant to peeling when adhered to a movable part of a human is provided. The adhesive sheet is an adhesive sheet configured to be adhered to a movable part of a human, the adhesive sheet including: a sheet body having a first region, the first region having a surface on which a gel is laid out; and at least one slit formed from a peripheral part of the sheet body toward the inside of the sheet body.