Knit Fabric Continuous Conductive Matrix for Static Dissipation

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Solution Overview

Problem

Existing fabrics lack effective and consistent static dissipation, thermal regulation, and antimicrobial properties, often relying on chemical treatments that can be toxic and inefficient in moisture management and pest repellency.

Innovation Solution

A multi-bar warp knit fabric structure with a continuous conductive matrix formed by hybrid yarns, incorporating a specialty core unit, static-dissipative inside cover, and surface-conductive outside cover, which creates a synergistic pathway for static dispersion and antimicrobial action without chemical treatments, enhancing durability and safety.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical treatments are applied to fabrics for static dissipation and antimicrobial properties, then functional performance is improved, but toxicity and environmental safety deteriorate

Engineering Contradiction:
Improvestatic dissipation performanceVSAvoidtoxicity
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces chemical treatments with a physical structure - a continuous conductive matrix formed by conductive yarns integrated into the knit fabric. This mechanical/structural approach provides static dissipation and antimicrobial properties without toxic chemical finishes, eliminating the harmful effects while maintaining functional performance

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The fabric uses composite yarns combining conductive materials (such as metal fibers or carbon) with textile fibers to create a continuous conductive matrix within the knit structure. This composite approach provides both the desired electrical conductivity for static dissipation and the mechanical properties of textile materials, without requiring chemical treatments

Inventive Principle:
Principle #40Composite materials

2Ease of manufacture

If conventional knit fabrics are used without conductive matrix, then manufacturing simplicity is maintained, but static dissipation effectiveness deteriorates

Engineering Contradiction:
Improvefabric production simplicityVSAvoidstatic dissipation consistency
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent merges the conductive function with the structural function by integrating conductive yarns directly into the knit fabric construction. The conductive matrix is formed by incorporating conductive elements into the yarns themselves or as part of the knit pattern, combining structure and function in a single manufacturing process rather than requiring separate treatment steps

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The continuous conductive matrix serves multiple functions simultaneously: it provides static dissipation, creates thermal regulation pathways, and offers antimicrobial properties. This multi-functional approach maintains manufacturing simplicity while delivering comprehensive performance benefits that conventional single-function fabrics cannot achieve

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If chemical finishes are applied for performance enhancement, then functional properties are improved, but durability and wash resistance deteriorate

Engineering Contradiction:
Improveantimicrobial and anti-static propertiesVSAvoidwash durability
Core Design Contradiction:
ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent replaces chemical finishes with a physical conductive matrix structure that is an integral part of the fabric construction. This structural approach is inherently durable and wash-resistant because it is built into the fabric architecture rather than applied as a surface coating that can wear off or degrade through washing

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The use of composite yarns with embedded conductive materials creates a durable, wash-resistant conductive network. The conductive elements are integrated within the yarn structure and knit into the fabric, making them resistant to degradation from washing, stretching, and wear, unlike surface-applied chemical finishes

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 fabric achieves balanced and predictable dissipation of electrical, thermal, and liquid charges, while being antimicrobial, hypoallergenic, and resistant to pests, maintaining performance and integrity without chemical finishes, suitable for diverse applications.

Implementation Method 1

a continuous conductive matrix formed by hybrid yarns, incorporating a specialty core unit, static-dissipative inside cover, and surface-conductive outside cover, which creates a synergistic pathway for static dispersion

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

The present fabric includes a multiplicity of evenly spaced, static absorptive boxes forming a continuous conductive grid, pattern, or 'matrix' in warp and wale directions with an evenly balanced field of static dispersion

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS11828007B2Knit fabric structure incorporating a continuous conductive matrix for enhanced static dissipation
Publication Date: 2023.11.28 APPLIED CONDUCTIVITY LLC
  • US11828007B2 patent drawing
  • US11828007B2 patent drawing
  • US11828007B2 patent drawing

AI summary

A multi-bar warp knit fabric structure includes a body yarn and a multi-wrapped hybrid yarn. The hybrid yarn incorporates a specialty core unit, an inside textile cover, and an outside textile cover. The inside textile cover is a static-dissipative yarn helically wrapped around the core unit, and the outside textile cover is a surface-conductive yarn helically wrapped around the inside textile cover and the core unit. The hybrid yarn is integrally knit with the body yarn in a repeating stitch pattern alternately zigzaging lengthwise up selected wales of the fabric structure and floating across the fabric structure in a widthwise course direction. The hybrid yarn cooperates with like knitted multi-wrapped hybrid yarns to form a continuous conductive matrix of static dissipative boxes in the fabric structure.