Textile Product With Reduced Density Regions
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Solution Overview
Problem
Conventional nonwoven textile products, such as felt, tend to be dense and lack flexibility, which limits their applications due to their tendency to break apart under stress or chemical exposure, and they often block sound and light effectively, restricting their use in certain applications.
Innovation Solution
The creation of textile products with selectively reduced density regions achieved through the introduction of microperforations or microbores, which can be formed using lasers or mechanical means, allowing for enhanced acoustic and optical transmission, flexibility, and maintaining the appearance and feel of the original fabric.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional nonwoven textile products are used, then they provide dense structure and good integrity, but they block sound and light transmission and lack flexibility
Solution Approach 1:
The patent applies porous materials by introducing microperforations and microbores into the textile fabric, creating a porous structure that allows sound and light transmission while maintaining fabric integrity. The microperforations pass through the fabric surface, and microbores extend into the fabric body, forming interconnected voids that enable acoustic and optical transmission without compromising the overall structural strength of the textile.
Solution Approach 2:
The patent applies local quality by creating localized reduced-density regions within the fabric rather than uniformly perforating the entire material. The microperforations and microbores are strategically positioned in specific zones to achieve desired acoustic and optical transmission properties in those areas while maintaining the original dense structure and integrity in other regions of the fabric.
2Object-generated harmful factors
If microperforations are introduced to improve sound transmission, then acoustic transmission improves, but fabric density and structural integrity may be compromised
Solution Approach 1:
The patent uses porous materials with controlled porosity, where microperforations are designed with specific diameter ranges (e.g., 1-100 micrometers) and distribution patterns that optimize sound transmission while maintaining sufficient fabric density for structural integrity. The interconnected porous network allows acoustic wave propagation while the remaining fabric matrix preserves mechanical strength.
Solution Approach 2:
The patent applies parameter changes by precisely controlling the size, shape, distribution, and depth of microperforations and microbores. By adjusting parameters such as perforation diameter, spacing, and penetration depth, the fabric achieves optimal balance between sound transmission capability and structural integrity, with different parameter sets tailored for specific acoustic performance requirements.
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 reduced density regions in the textile products improve sound transmission clarity and range, flexibility, and light transmission, enabling applications where standard textiles would be inadequate, such as in acoustic or optical components without compromising the fabric's visual and tactile attributes.
Implementation Method 1
at least one micro-feature formed in the second volume, the at least one micro-feature reducing a density of the second volume. In certain embodiments, the at least one micro-feature comprises a plurality of microperforations; and the plurality of microperforations cooperate to reduce the density of, and/or allow air flow through, the second volume
Data Source
AI summary
Embodiments described herein may take the form of a textile product having one or more regions of reduced density. These reduced density volumes may form one or more features in the product. For example, the reduced density volumes may have better acoustic transmission properties, optical transmission properties, flexibility, and the like. Sound transmission may be enhanced not only in terms of clarity, but also overall range. That is, certain audio frequencies that the textile may normally block when in an unaltered state may pass through a textile having reduced density or reduced density regions.