Offset Tearable Lines for Label Assembly Separation
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Solution Overview
Problem
Existing self-adhesive label sheets are difficult to remove efficiently, particularly for large quantities, as they require manual bending to separate the labels from the backing, which can be cumbersome and inefficient.
Innovation Solution
A label assembly with a face sheet and a back sheet, featuring a separation line formed by offset tearable lines on both sheets, including angled or non-linear portions, allowing for easier separation and removal of labels by tearing along these lines, thereby exposing the labels for easy access and application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual bending is used to separate labels from the backing sheet, then labels can be removed individually, but the process becomes cumbersome and inefficient for large quantities
Solution Approach 1:
The backing sheet is divided into multiple sections by tear-off lines that allow users to separate labels in batches rather than one by one. This segmentation enables efficient removal of multiple labels at once while maintaining ease of operation for individual label extraction.
Solution Approach 2:
Tear-off lines are pre-formed in the backing sheet during manufacturing, creating predetermined separation paths that guide users through the label removal process. This preliminary action eliminates the need for complex manual bending maneuvers and simplifies the removal process for both single and multiple labels.
2Ease of operation
If tear-off lines are added to facilitate label separation, then label removal becomes easier, but the structural integrity of the sheet may be compromised
Solution Approach 1:
Tear-off lines are strategically positioned only in specific locations where separation is needed, while maintaining full structural integrity in other areas of the sheet. The lines are designed with specific characteristics (such as being partial cuts rather than complete breaks) that provide separation functionality only where required, preserving overall sheet strength.
Solution Approach 2:
The tear-off lines are designed as partial cuts that extend only partway through the backing sheet material, rather than complete breaks. This partial action provides sufficient separation functionality while leaving enough material connection to maintain structural integrity during handling and application.
Data Source
AI summary
A label assembly including a face sheet, a back sheet, and a layer of an adhesive positioned between the face sheet and the back sheet. A separation line divides the label assembly into at least two portions. The separation line is formed by a first tearable line of separation extending across the back sheet and a second tearable line of separation extending across the face sheet. The first tearable line of separation is offset with respect to the second tearable line of separation, and at least one of the first and second tearable lines of separation includes a non-linear portion directed toward and/or an angled portion extending at an angle to an other of the at least one of the first and second tearable lines of separation.