Bio-based Velour Cable Tape for Noise Damping and Abrasion Resistance
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Solution Overview
Problem
Adhesive tapes used for wrapping cables in automobiles face challenges in providing effective noise damping, abrasion resistance, and manual tearability while meeting requirements for resource-conserving manufacture and temperature resistance.
Innovation Solution
A predominantly textile adhesive tape with a velour substrate band made from bio-based polymer fibers and/or polymer filaments, featuring outwardly directed velour loops for noise damping and a bio-polyester film layer for enhanced resource efficiency, combined with a suitable adhesive coating for improved abrasion and temperature resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a textile substrate band made of bio-based polymer fibers is used, then resource-conserving manufacture is improved, but noise damping performance deteriorates
Solution Approach 1:
The patent applies composite materials by combining a textile substrate band made of bio-based polymer fibers with a polymeric adhesive coating. This composite structure allows the tape to simultaneously achieve resource-conserving manufacture through bio-based materials while the adhesive coating provides the necessary noise damping and suppression properties that the textile substrate alone cannot deliver.
2Strength
If the adhesive tape is made with high abrasion resistance, then protection against mechanical abrasion is improved, but manual tearability deteriorates
Solution Approach 1:
The patent applies local quality by creating different functional zones within the adhesive tape structure. The textile substrate band provides high abrasion resistance for protection against mechanical wear, while the adhesive coating is designed with specific properties that allow manual tearability. This spatial differentiation of material properties enables the tape to exhibit both high abrasion resistance and ease of manual tearing in different locations and contexts.
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 tape achieves effective noise suppression, high abrasion resistance, and manual tearability while being manufactured in a resource-conserving manner, meeting the stringent requirements for automotive applications.
Implementation Method 1
the outwardly directed velour loops for noise damping
Implementation Method 2
an adhesive coating applied to the substrate band on one or both faces
Data Source
AI summary
An adhesive tape for bundling cables is made by first making a velour substrate band entirely or partially of bio-based polymer fibers and/or bio-based polymer filament and having a front face from which projects a dense array of loops and a back face. Then an adhesive coating is applied to a back face of the substrate band to make therefrom an adhesive tape meeting abrasion class C of LV 312. This adhesive tape is used by being wound around a plurality of motor-vehicle cables with the adhesive engaging the cables and the front face and loops turned away from the cables.