Sealing Tape Roll with Patterned Adhesive Strands
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Sealing tapes with adhesive layers often stick together in rolls, making them difficult to unwind and install, and require additional steps like peeling off release films, which increases installation time and risk of damage.
Innovation Solution
A roll of sealing tape with a self-adhesive layer partially covered by strands arranged in a pattern, allowing for reduced adhesion between turns without the need for additional separating means, enabling easy unwinding and strong adhesion to components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a self-adhesive layer is fully exposed on the sealing tape, then adhesion strength to component is improved, but adhesion between adjacent turns in roll increases causing difficulty in unwinding
Solution Approach 1:
The self-adhesive layer is segmented into uncovered adhesive areas and covered non-adhesive areas through the application of a non-adhesive layer in a pattern (such as stripes, dots, or grid). This segmentation allows the adhesive layer to fulfill its bonding function on the component while preventing excessive adhesion between adjacent turns in the roll, enabling easy unwinding without compromising attachment strength.
Solution Approach 2:
Different regions of the sealing tape are given different properties: the uncovered areas of the self-adhesive layer maintain high adhesive strength for bonding to the component, while the covered areas have reduced or no adhesion to prevent sticking between turns. This local differentiation of adhesive properties resolves the contradiction between strong attachment and easy unwinding.
2Ease of operation
If a release liner is added to prevent adhesion between turns, then unwinding ease is improved, but device complexity and installation steps increase
Solution Approach 1:
The separate release liner component is eliminated by integrating the non-adhesive function directly into the self-adhesive layer through patterned coverage. The non-adhesive layer is applied only in specific areas of the adhesive layer, creating an integrated structure that prevents turning adhesion without requiring a separate removable liner, thus reducing device complexity and installation steps.
Solution Approach 2:
The non-adhesive layer and self-adhesive layer are merged into a single integrated structure where the non-adhesive areas are strategically positioned on the adhesive layer. This combination eliminates the need for separate release liner components while maintaining both the easy unwinding and strong adhesion functions within a unified tape structure.
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
Facilitates easy unwinding and secure attachment to components without reducing adhesive strength, eliminating the need for release films and ensuring reliable adhesion, thus simplifying installation and enhancing usability.
Implementation Method 1
A self-adhesive layer is arranged on the bottom surface of the sealing tape. The self-adhesive layer has a partial covering formed by strands arranged in a pattern on the bottom surface of the sealing tape or on the self-adhesive layer. Openings are provided between the strands for uncovered areas of the self-adhesive layer.
Implementation Method 2
The sealing tape has a base body made of a soft foam material capable of elastic recovery after compression.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The sealing tape roll (2) comprises a sealing tape (4) wound onto the sealing tape roll (2) such that the underside (8) of one turn is adjacent to the top side (10) of the subsequent turn of the sealing tape (4) and the side flanks (12) are arranged at the end faces of the sealing tape roll (2). A self-adhesive layer (18) is arranged on the underside (8) of the sealing tape (4), the self-adhesive layer having a partial covering (20) formed from strands (22) arranged in a pattern, with openings (24) between the strands (22) providing passages for uncovered areas of the self-adhesive layer (18).