Splicing Tape Tapered Protrusions Splitting Layer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing splicing tapes face issues with premature splitting and jolting during continuous roll changes, leading to potential tearing, wrinkling, or adhesive failure, especially due to unsymmetrical constructions that increase the risk of pre-splitting and make handling difficult.
Innovation Solution
A splicing tape design featuring a continuous and uninterrupted middle area with repeating tapered protrusions and flattened tips, extending over a significant portion of the tape width, which connects both backing layers and reduces the likelihood of premature splitting and jolting by providing a higher minimum breakout force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a continuous splitting layer is used over the whole width of the backing layer, then the splicing tape can be easily separated, but the breakout force becomes higher than the peel force causing jolting and potential tearing
Solution Approach 1:
The continuous splitting layer is segmented into discrete splittable areas that are distributed across the backing layer. These splittable areas are separated by non-splittable barrier areas, creating a patterned structure that controls the separation process. This segmentation allows the tape to split easily along predetermined lines without generating excessive breakout force, as the separation occurs progressively across multiple discrete points rather than requiring simultaneous separation across the entire width.
Solution Approach 2:
Different regions of the splitting layer are given different properties: splittable areas are designed to separate easily, while barrier areas maintain adhesion. This local differentiation of properties allows the tape to exhibit controlled splitting behavior in specific zones while maintaining structural integrity in other zones, resolving the contradiction between ease of separation and force control.
2Ease of operation
If the splittable material is positioned near one longitudinal edge, then the separation can be initiated easily, but the unsymmetrical construction increases the risk of pre-splitting and makes handling difficult
Solution Approach 1:
The splicing tape employs an asymmetrical construction with splittable areas positioned predominantly near one longitudinal edge, creating an unsymmetrical pattern relative to the tape centerline. This intentional asymmetry facilitates easy initiation of separation at the leading edge while the distributed pattern of multiple splittable areas prevents uncontrolled pre-splitting. The asymmetrical design is optimized for the specific application of flying splices where separation initiates from one end and progresses along the tape.
Solution Approach 2:
The splittable areas are pre-positioned and pre-configured in specific locations on the backing layer before the splicing operation. This preliminary arrangement ensures that when the tape is applied, the separation can be initiated at the correct location and proceed in the desired direction, preventing premature or uncontrolled splitting while maintaining handling ease.
3Area of stationary object
If a broad backing layer is used, then the adhesive coverage is increased, but the tape becomes more sensitive to improper handling and application
Solution Approach 1:
The broad backing layer is functionally segmented into splittable areas and barrier areas. This segmentation allows the large adhesive coverage area to be maintained while the splittable areas provide controlled separation points that reduce sensitivity to improper handling. The barrier areas maintain adhesion across the broad surface, while the distributed splittable areas ensure that even if handling varies, separation will occur at the predetermined locations rather than randomly across the entire broad surface.
Data Source
AI summary
The present invention relates to a splicing tape (1) for continuous roll change, the splicing tape comprising: a) a first tape component including a first backing layer (2) and a first adhesive layer (3) on a first surface of the first backing layer (2); b) a second tape component including a second backing layer (4) and a second adhesive layer (5) on a first surface of the second backing layer (4); and c) a splitting layer (6) joining the first backing layer (2) and the second backing layer (4) together, such that the first and second adhesive layers (3,5) are facing away from the splitting layer (6), wherein the splitting layer (6) comprises a continuous and uninterrupted middle area (7) extending in the longitudinal direction of the splicing tape (1) and provided with repeating tapered protrusions (2) with flattened tips projecting from the middle area (7) towards both longitudinal edges of the splicing tape and to a method for manufacturing and using such a splicing tape.