Mono-Oriented Polymer Snuff Container Sealing Label
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Solution Overview
Problem
Existing sealing labels for snuff containers often require pre-formed tear lines, which can compromise the tightness of the seal and require careful alignment, and typically consist of laminates that consume more material and are not as effective in maintaining the freshness of the product.
Innovation Solution
A sealing label made of a single, mono-oriented polymer film with a continuous adhesive coating, where the film is oriented in the length direction and has a tear strip that tears in a controlled manner without pre-formed lines, providing a tight seal and reducing material consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pre-formed tear lines are used in sealing labels, then the tear strip can be separated easily, but the tightness of the seal is compromised and alignment precision is required
Solution Approach 1:
The sealing label is divided into distinct functional zones: a container lid attachment area, a container base attachment area, and a tear strip area positioned between them. This segmentation allows the tear strip to be separated independently while maintaining the integrity of the attachment areas, resolving the contradiction between easy separation and seal tightness.
Solution Approach 2:
The adhesive coating is applied selectively to specific regions: it covers the container lid attachment area and container base attachment area, but intentionally excludes the tear strip area. This local differentiation in adhesive distribution enables the tear strip to be easily separated while ensuring strong bonding in the attachment regions, eliminating the need for pre-formed tear lines and maintaining seal integrity.
2Strength
If laminate structures are used in sealing labels, then the seal strength is improved, but material consumption increases
Solution Approach 1:
The invention extracts and removes the inner web layer from the traditional laminate structure, retaining only the essential outer web layer. This simplification maintains the necessary seal strength while significantly reducing material consumption and eliminating the complexity of multi-layer laminates.
Solution Approach 2:
The sealing label utilizes a composite structure combining an outer web layer made of oriented polymer film with a selectively applied adhesive coating. This composite design provides sufficient mechanical strength for sealing while using materials more efficiently than traditional laminate structures, reducing overall material consumption.
3Area of stationary object
If the sealing label width is increased to provide more information area, then the information display capability is improved, but the sealing effectiveness may be reduced
Solution Approach 1:
The sealing label is designed with a length considerably exceeding its width, creating an elongated format. This dimensional configuration provides a large surface area for information display while concentrating the critical sealing function in the width direction where the attachment areas are positioned, thus maintaining sealing effectiveness despite increased information area.
Solution Approach 2:
The adhesive coating is applied selectively to specific regions along the length of the label, concentrating the sealing function in the attachment areas while leaving the tear strip area adhesive-free. This localized adhesive application ensures effective sealing without compromising the information display area, allowing the label to fulfill both functions simultaneously.
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 solution offers improved sealing capacity, reduced material usage, and a longer shelf-life for snuff products without the need for refrigeration, while allowing for a larger information display area on the container.
Implementation Method 1
The structural layer may include a mono oriented polymer film having a direction of orientation coinciding with said length direction of said sealing label
Implementation Method 2
The adhesive coating is arranged to provide non-removable attachment of the container lid attachment area and the container base attachment area to a container lid and a container base, respectively
Data Source
AI summary
A sealing label for sealing a snuff container may include a structural layer and having first and second side edges extending in a length direction and first and second end edges extending in a width direction. The sealing label may be divided in the width direction into a container lid attachment area and a container base attachment area. A tear strip area may be arranged between the container lid attachment area and the container base attachment area and may be terminated by a pull tab arranged at the first end edge. The structural layer of the sealing label may be a single structural layer of the sealing label and may consist of a mono oriented polymer film having a direction of orientation coinciding with the length direction of the sealing label. A snuff container provided with the sealing label is also disclosed.