Adhesive Tape Laminate for Cable Harness Noise and Abrasion
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Solution Overview
Problem
Current adhesive tapes for cable harnesses lack a combination of sound insulation, high abrasion resistance, temperature resistance, compatibility with core insulation, and hand-tearability, limiting their range of uses and performance in industrial applications, particularly in the automotive sector.
Innovation Solution
An adhesive tape featuring a laminate structure with a staple fiber nonwoven carrier, consolidated using mechanical, thermal, or chemical methods, combined with a thin PE film and a pressure-sensitive adhesive, providing enhanced noise attenuation, temperature resistance, and improved tearability, while maintaining a lightweight and flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a fleece carrier is used for adhesive tape, then noise attenuation is improved, but abrasion resistance deteriorates
Solution Approach 1:
The patent applies composite materials by combining a fleece carrier with a film layer to create a laminate structure. The fleece provides noise attenuation while the film layer compensates for the lack of abrasion resistance, achieving both sound insulation and protective functions simultaneously.
2Strength
If a thick nonwoven carrier is used, then cushioning properties are improved, but the basis weight increases
Solution Approach 1:
The patent segments the carrier structure into two distinct layers: a fleece layer for cushioning and a film layer for protection. This segmentation allows each layer to be optimized for its specific function while keeping the overall basis weight lower than using a single thick nonwoven layer.
3Weight of stationary object
If a thin film is used for adhesive tape, then basis weight is reduced, but protection against media migration deteriorates
Solution Approach 1:
The patent uses a composite laminate structure where a thin film layer is combined with a fleece carrier. The thin film provides basis weight reduction while the fleece layer compensates for the reduced barrier properties, maintaining protection against media migration.
4Strength
If adhesive mass is applied to penetrate into the carrier, then adhesion is improved, but the carrier structure becomes more complex
Solution Approach 1:
The patent introduces a film layer as an intermediary between the adhesive and the fleece carrier. This film layer serves as a controlled interface for adhesive application, improving adhesion while keeping the fleece carrier structure simple and maintaining its noise attenuation properties.
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 adhesive tape achieves improved noise attenuation, temperature resistance, and hand-tearability, offering a broader range of uses and enhanced performance in cable harness applications, including better protection against media migration and reduced fogging, with a reduced basis weight and improved adaptability to cable contours.
Implementation Method 1
a) a textile carrier (1), in particular a fleece, and b) a film (3), in particular a thermoplastic film, preferably a PE film, wherein a layer of a pressure-sensitive adhesive (12) is applied on the free side of the film (3)
Implementation Method 2
The laminate (10) is formed from a textile carrier (1), in particular a fleece, and a film (3), in particular a thermoplastic film, preferably a PE film, wherein a laminating adhesive (2) is present between the textile carrier (1) and the film (3)
Data Source
Figure 1
Figure 2
AI summary
The adhesive tape comprises a carrier material (10) that is provided on one side with an adhesive coating (12), where the carrier material consists of a laminate. The laminate is formed from a textile carrier (1) in the form of a staple fiber web or a spun-bonded web and from a film (3), which is located on an underside of the textile carrier and is made of polyolefins. A thickness of the film is 15-80 mu m. The adhesive coating is disposed on a free side of the film. The staple fiber webs are wet-laid, needle-punched or water-jet webs. The adhesive tape comprises a carrier material (10) that is provided on one side with an adhesive coating (12), where the carrier material consists of a laminate. The laminate is formed from a textile carrier (1) in the form of a staple fiber web or a spun-bonded web and from a film (3), which is located on an underside of the textile carrier and is made of polyolefins. A thickness of the film is 15-80 mu m. The adhesive coating is disposed on a free side of the film. The staple fiber webs are wet-laid, needle-punched or water-jet webs. The wet-laid, needle-punched or water-jet staple fiber webs or the spun-bonded webs are consolidated mechanically, thermally and/or chemically. The laminate consists of spun-bonded web, wet-laid web, needle-punched web or water-jet web with a multilayer polyethylene film. A width of the carrier material is 9-38 mm, and a basis weight of the carrier material is 60-150 g/m 2>.