Coupled Balloon Using Adhesive Tape for Gas Barrier Sealing
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Solution Overview
Problem
Existing coupled balloons face challenges in achieving air-tightness and gas retention due to the difficulty in thermally fusing gas barrier layers, particularly when using materials like polyamide or ethylene-vinyl alcohol copolymer resin, which hinders the efficient inflation of multiple balloons with helium or other gases.
Innovation Solution
The solution involves forming through-holes in each balloon body and joining their peripheries with double-sided bonding tape, ensuring alignment of communication holes for gas passage, allowing helium or other gases to be injected into multiple balloons simultaneously through a single valve, thereby maintaining air-tightness and creating a coherent three-dimensional shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If thermal fusion is used to join balloon bodies, then manufacturing precision is improved, but it becomes difficult to apply to gas barrier layers made of polyamide or ethylene-vinyl alcohol copolymer resin
Solution Approach 1:
The invention changes the joining method from thermal fusion to bonding with adhesive tape, which is compatible with gas barrier layers made of polyamide or ethylene-vinyl alcohol copolymer resin that cannot be easily thermally fused
Solution Approach 2:
The invention introduces bonding tape as an intermediary material to join the balloon bodies, eliminating the need for direct thermal fusion of the gas barrier layers
2Ease of manufacture
If bonding agent layer or double-sided bonding tape is used to connect pouch bodies, then ease of manufacture is improved, but air-tightness and gas retention cannot be ensured
Solution Approach 1:
The invention uses bonding tape as an intermediary that provides both ease of manufacture and reliable air-tightness by connecting the pouch bodies while maintaining gas retention
Solution Approach 2:
The invention employs a composite structure combining bonding tape with the balloon body materials to achieve both ease of manufacture and air-tightness
3Adaptability or versatility
If multiple balloons are coupled with communicating interiors, then functionality is improved, but manufacturing complexity increases due to air-tightness requirements
Solution Approach 1:
The invention uses bonding tape as a simple intermediary to connect multiple balloons while ensuring air-tightness, avoiding complex manufacturing processes
Solution Approach 2:
The invention divides the coupled balloon into separate pouch bodies that are independently manufactured and then joined using bonding tape, simplifying the overall manufacturing 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
This method effectively prevents gas leakage and allows for the creation of novel balloon toys with coupled shapes, such as ribbons or animals, by ensuring air-tight bonding between balloons using a pressure-sensitive adhesive tape, optimizing air-tightness and reducing air resistance.
Implementation Method 1
a double-sided bonding tape having a communication hole by which the outward-surface-side peripheral edge portions of each of the through-holes are joined together
Implementation Method 2
the inside comprises a heat seal layer, the outside is formed by overlapping films configured from gas barrier layers, a valve for injecting a gas into one location on the peripheral edge thereof is interposed, and the peripheral edge other than the inner surface of the valve is thermally fused
Data Source
AI summary
A coupled balloon includes: a first balloon body, at least one second balloon body, through-holes formed in the balloon bodies via which the balloon bodies communicate with each other, and a double-sided bonding tape having a communication hole which is aligned with the through-holes, by which outward-surface-side peripheral edge portions of each of the through-holes are joined together. Inside of the balloon bodies include a heat seal layer, and outside thereof is formed by overlapping films configured from gas barrier layers. A valve for injecting a gas into one location on a peripheral edge of the first balloon body is interposed, and the peripheral edge other than an inner surface of the valve is thermally fused. A peripheral edge of the at least one second balloon body is thermally fused.