Binding Tape With Segmented Fused Sections

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Solution Overview

Problem

Sound deadening tapes used in automobile wiring experience low abrasion resistance and layer separation issues, leading to reduced work efficiency and performance.

Innovation Solution

A binding tape with a substrate layer comprising a non-woven fabric featuring at least two types of fused sections with different shapes or sizes, thermally formed by heat embossing, which enhances abrasion resistance and suppresses layer separation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a substrate layer comprising non-woven fabric is used for sound deadening, then tapping noises and scratching noises are attenuated, but layer separation occurs when the tape is rewound or drawn from a tape roll

Engineering Contradiction:
Improvenoise attenuationVSAvoidlayer separation
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The fused sections are divided into at least two types with different shapes (e.g., circular and linear) or different sizes, creating a segmented bonding pattern that prevents uniform layer separation while maintaining sound deadening properties

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the substrate layer have different fusion characteristics through the use of multiple fused section types, creating localized bonding strengths that collectively prevent layer separation while preserving overall noise attenuation capability

Inventive Principle:
Principle #3Local quality

2Reliability

If a substrate layer with fused sections is used to suppress layer separation, then layer separation is reduced, but abrasion resistance decreases

Engineering Contradiction:
Improvelayer separation suppressionVSAvoidabrasion resistance
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The fused sections are segmented into multiple types with different shapes and sizes distributed across the substrate layer, creating a balanced structure that provides both layer separation suppression and adequate abrasion resistance through diversified bonding points

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fusion parameters (shape, size, distribution) of the fused sections are optimized to achieve the right balance between preventing layer separation and maintaining abrasion resistance, rather than using a single fusion pattern

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If binding tape is used in concealed locations subject to vibration, then wires are bound together, but tapping noises and scratching noises are generated

Engineering Contradiction:
Improvewire bundlingVSAvoidtapping and scratching noises
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The binding tape uses a composite structure combining non-woven fabric substrate with adhesive layer and multiple fused sections, creating a material that provides both wire bundling stability and noise attenuation through its layered composition

Inventive Principle:
Principle #40Composite materials

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 binding tape achieves improved sound deadening properties, increased abrasion resistance, and reduced layer separation, ensuring effective noise attenuation and prolonged usage.

Implementation Method 1

the non-woven fabric acts as a cushioning material and it is possible to attenuate tapping noises and scratching noises

Methodology Applied
Scientific EffectCushioning: Damping

Implementation Method 2

the fused sections are formed by thermally fusing fibers of the non-woven fabric by a heat embossing

Methodology Applied
Scientific EffectThermal fusing: Heat Treatment

Data Source

PatentEP3957478B1Binding tape
Publication Date: 2023.10.18 DENKA CO LTD

AI summary

[Problem] To provide a binding tape which has sound deadening properties, can suppress layer separation, and is also excellent in abrasion resistance. [Solution] A binding tape having a substrate layer comprising a non-woven fabric, and an adhesive layer, wherein the substrate layer is provided with at least two types of fused sections having different shapes. The fused sections are preferably formed by thermally fusing fibers of the non-woven fabric by a heat embossing. Further, the binding tape preferably has a scrape abrasion resistance repetition number of 100 times or more.