Roll-Shaped Thin Film Buffer Layer Packaging Structure
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Solution Overview
Problem
Existing packaging methods for roll-shaped thin films often result in damage during the application of external forces, such as adhesive tapes, leading to deformation and surface damage, which increases costs due to unusable sections of the film.
Innovation Solution
A package structure and packaging method that includes a thin film roll with a buffer layer wound around its outer circumference, where one end portion of the buffer layer is covered by the inner surface of the thin film, allowing the buffer layer to absorb external forces and reduce pressure on the film, thereby minimizing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive tape is applied to attach the buffer layer to the roll-shaped thin film, then the buffer layer is secured to protect the film, but external force applied during attachment causes deformation and surface damage to the thin film
Solution Approach 1:
The patent introduces a connecting element as an intermediary component between the buffer layer and the roll-shaped thin film. This connecting element serves as a mediator that attaches the buffer layer to the film without requiring direct application of external force to the film surface, thereby preventing deformation and surface damage while still achieving secure attachment.
Solution Approach 2:
The patent extracts the harmful effect of direct force application by separating the attachment function from the film itself. The connecting element is used to attach the buffer layer to the winding core or packaging structure, removing the need to apply adhesive tape or force directly to the thin film, thus eliminating the source of deformation and surface damage.
2Stability of the object's composition
If external force is applied to attach the buffer layer, then the buffer layer is fixed in position, but the roll-shaped thin film underneath suffers damage reducing usable length
Solution Approach 1:
The connecting element acts as an intermediary that secures the buffer layer's position without transmitting damaging forces to the thin film. By attaching the buffer layer to the winding core or packaging structure through this intermediary, the buffer layer remains stable and fixed while the film underneath is protected from force-induced damage, preserving its full usable length.
Solution Approach 2:
The buffer layer itself serves as a cushioning element that is positioned beforehand to protect the thin film from future damages during transportation. The connecting element secures this protective buffer layer in place without compromising the film, ensuring the film is pre-protected while maintaining its integrity and full usable length.
3Object-affected harmful factors
If the buffer layer is made thicker to better protect the film, then protection effectiveness increases, but the overall package size and complexity increase
Solution Approach 1:
The patent applies local quality by positioning the buffer layer specifically at critical areas where the roll-shaped thin film is most vulnerable to damage, such as the ends and surfaces exposed during transportation. This targeted placement ensures effective protection at key locations without requiring a uniformly thick buffer layer throughout, thereby maintaining simplicity in the packaging structure while achieving high protection effectiveness where needed.
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 proposed solution effectively protects the roll-shaped thin film from deformation and surface damage by absorbing external forces, reducing the length of damaged sections and lowering costs associated with film waste.
Implementation Method 1
the buffer layer may be sandwiched between the inner surface of the end portion of the thin film and the outer circumference of its underlying thin film of the next round. Therefore, even if an external force toward the winding core is applied to the end portion of the thin film, the external force may be absorbed by the buffer layer completely or partially.
Data Source
AI summary
A package structure of a roll-shaped thin film includes a thin film roll and a buffer layer. The thin film roll includes a winding core and a thin film wound around the winding core, and the buffer layer is wound around an outer circumference of the thin film. An end portion of the buffer layer is covered with an inner surface of an end portion of the thin film, and the thickness of the buffer layer is in a range of 1-20 mm.