Composite Yarn for Protective Textile Abrasion and Penetration Resistance
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Solution Overview
Problem
Existing protective garments and accessories lack comprehensive protection against abrasion, penetration, laceration, and thermal threats while being heavy, uncomfortable, and inefficient in heat and humidity environments, with antiballistic fabrics failing to provide adequate defense against non-ballistic forces.
Innovation Solution
A multilayer knitted textile comprising a flame-resistant outer layer made of modacrylic or aramid fibers and a penetration-resistant inner layer made of 50-90% HBA/HNA filaments, with various knitting techniques such as sewing, interlock knitting, or plaiting, to create durable and breathable apparel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antiballistic fabrics are used to provide protection against ballistic threats, then protection capability is improved, but weight increases and comfort deteriorates
Solution Approach 1:
The patent employs composite materials by combining HBA/HNA filaments with other fibers (such as aramid, polyester, or nylon) in a single yarn construction. This allows the fabric to achieve antiballistic protection equivalent to pure HBA/HNA fabrics while reducing weight by approximately 20%, as the composite structure optimizes strength-to-weight ratio through synergistic material combinations.
Solution Approach 2:
The invention applies local quality by creating yarns with non-uniform distributions of HBA/HNA filaments and other fibers. Specifically, the patent describes yarns where HBA/HNA filaments are concentrated in certain regions or layers, providing enhanced protection where needed while reducing overall weight. This includes core-sheath constructions and gradient distributions of high-strength filaments.
2Reliability
If multiple layers are used to increase protection, then protection capability is improved, but device complexity and ease of operation worsen
Solution Approach 1:
The patent merges multiple protective functions into a single integrated fabric layer by using composite yarns that contain both HBA/HNA filaments and other functional fibers. This consolidation achieves the protection equivalent of multiple separate layers while simplifying the overall structure, eliminating the need for complex multilayer assemblies and improving ease of operation.
3Reliability
If heavy materials are used to provide comprehensive protection, then protection capability is improved, but ease of operation and comfort worsen
Solution Approach 1:
The patent uses composite materials combining HBA/HNA filaments with lighter-weight fibers such as polyester or nylon. This composite approach maintains comprehensive protection against ballistic, cut, and abrasion threats while reducing overall fabric weight by approximately 20% compared to traditional heavy protective materials, thereby significantly improving wearer comfort and ease of operation.
Solution Approach 2:
The invention applies parameter changes by optimizing the denier (thickness) and linear density of HBA/HNA filaments within the composite yarns. By carefully controlling these parameters, the patent achieves maximum protection with minimal weight, transforming the weight-protection relationship and enabling lightweight protective apparel that maintains high performance.
Data Source
AI summary
The invention relates to a multifunctional protective textile for protective garments and accessories made from high strength fibers, said garments and accessories are abrasion resistant, improved penetration resistant, laceration resistant, and flame resistant, the textile is made from a flame resistant knitted outer layer made of a first yarn containing modacrylic, FR rayon, Opan, or aramid fibers; and, a penetration resistant knitted inner layer made of a second yarn made from 50-90% HBA/HNA filaments, as well as methods of manufacturing yarn, methods of manufacturing a textile using the yarn, and apparel made from the yarn.