Protective Garment Lining Fabric Moisture Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current protective garments, such as firefighter gear, face challenges in combining fire resistance with moisture management and comfort, particularly in maintaining low friction and preventing water absorption, which increases weight and stress on the wearer.
Innovation Solution
A fabric with a woven or knitted structure featuring first yarns with at least 20% fire-resistant cellulose fibers and second yarns with inherently flame-resistant fibers, forming patterns that concentrate FR cellulose fibers for enhanced moisture management and breathability, while maintaining flame resistance even after multiple launderings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protective garments use traditional fire resistant materials, then flame resistance is improved, but moisture management and breathability deteriorate
Solution Approach 1:
The fabric incorporates different fiber types in specific patterns and concentrations - FR cellulose fibers (at least 20% by weight) combined with inherently flame resistant fibers like aramid, PBI, or PBO. This local differentiation of fiber composition allows different regions of the fabric to provide different functions: moisture management in areas with higher cellulose content and enhanced flame resistance in areas with concentrated FR fibers, resolving the contradiction between uniform flame protection and localized moisture management.
Solution Approach 2:
The invention uses composite yarns containing both fire resistant cellulose fibers and inherently flame resistant synthetic fibers (aramid, PBI, or PBO) woven together. This composite structure combines the moisture-wicking properties of cellulose with the thermal stability and flame resistance of synthetic fibers, allowing the fabric to simultaneously achieve both flame resistance and moisture management without sacrificing either property.
2Reliability
If protective garments absorb water during use, then fire resistance is maintained, but weight increases and stress on wearer increases
Solution Approach 1:
The fabric changes the moisture absorption parameter by using hydrophobic inherently flame resistant fibers (aramid, PBI, PBO) combined with controlled amounts of cellulose fibers. This parameter modification allows the fabric to resist water absorption while maintaining flame resistance, preventing weight increase during use without compromising protective properties.
3Reliability
If inner lining has high friction characteristics, then fire resistance is improved, but comfort and ease of movement deteriorate
Solution Approach 1:
The fabric creates local quality variations in friction characteristics through its woven structure and fiber distribution. The inner lining surface has modified friction properties due to the specific arrangement of cellulose and synthetic fibers, providing low friction for comfort during movement while maintaining adequate fire resistance through the overall fiber composition and weave density.
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 provides excellent moisture management, comfort, and flame resistance, reducing stress on the wearer and maintaining performance through multiple uses, with improved breathability and durability.
Implementation Method 1
the present disclosure is directed to further improvements in fabrics for removing or wicking away moisture from the wearer
Data Source
AI summary
A fabric having moisture management properties is disclosed. The fabric can also be made to be fire resistant. The fabric is particularly well suited for being used as an inner lining in protective garments. The fabric contains first yarns and second yarns. The first yarns extend in a first direction and the second yarns extend in the second direction. The yarns are woven together such that the first yarns form a pattern of shapes. The pattern of shapes concentrate the FR cellulose fibers and provide channels for carrying away moisture and improving the moisture management properties of the fabric.