Cut-Resistant Textile Fabric with Elastomeric Yarn Segmentation

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Solution Overview

Problem

Existing cut-resistant textile fabrics lack flexibility while maintaining protective effectiveness, necessitating a solution that enhances flexibility without compromising cut resistance.

Innovation Solution

A textile fabric comprising a first twisted thread with a cut-resistant yarn and a second twisted thread containing elastomeric fibers, which are processed together through weaving, knitting, or plaiting, incorporating materials like steel, aramid, and elastane fibers to achieve increased flexibility and high cut resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If protective clothing is manufactured using only cut-resistant yarns (e.g., polyolefin with high molecular weight), then cut resistance is maintained, but flexibility is insufficient

Engineering Contradiction:
Improvecut resistanceVSAvoidflexibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The yarn structure is segmented into two functional components: cut-resistant yarn (providing protective function) and elastomeric yarn (providing flexibility function). This segmentation allows each component to optimize its specific property without compromising the other, resolving the contradiction between cut resistance and flexibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses composite yarn construction combining cut-resistant materials (polyolefin, aramid) with elastomeric materials (elastane, elastodiene). This composite approach creates a yarn that simultaneously exhibits both cut resistance and flexibility, eliminating the need to choose between the two properties.

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If elastomeric fibers are added to twisted threads to improve flexibility, then flexibility increases, but the structural complexity increases

Engineering Contradiction:
ImproveflexibilityVSAvoidthread structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The elastomeric yarn is merged with the cut-resistant yarn within the same twisted thread structure. Both yarn types are twisted together in a unified construction, allowing the fabric to achieve enhanced flexibility without requiring separate structural systems or complex multi-layer constructions.

Inventive Principle:
Principle #5Merging (Combining)

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 resulting fabric exhibits higher flexibility and maintains or exceeds the cut resistance levels of prior art, as demonstrated by performance in protective clothing such as gloves, offering improved wear comfort and dexterity without sacrificing protective performance.

Implementation Method 1

the non-cut resistant yarn of the second twisted thread consists of elastomeric fibers, that is, fibers that are extremely stretchable, and, after the release of tension, largely return to the original state

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8021994B2Textile fabric and protective clothing containing the fabric
Publication Date: 2011.09.20 TEIJIN TWARON GMBH

AI summary

A textile fabric is presented comprising at least a first and a second twisted thread, the first and the second twisted threads containing at least one cut resistant yarn as one component, and the second twisted thread containing a non-cut resistant yarn as a further component, and the non-cut resistant yarn of the second twisted thread consisting of elastomeric fibers. Further, protective clothing is presented, which contains the textile fabric.