Flame-Resistant Textile Finish for Chemical Splash Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Laboratory workers face discomfort due to the inherent flame resistance of fabrics made from aramid fibers, which also fail to provide adequate protection from chemical splashes and spills, necessitating a balance between comfort and protection.
Innovation Solution
A treated textile material with a substrate comprising interwoven yarns of 50% or more inherent flame-resistant fibers, such as meta-aramid and para-aramid fibers, and a fluorochemical repellent finish to enhance chemical resistance and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lightweight open weave fabrics are used to improve wearer comfort, then comfort is improved, but protection from chemical splashes and spills deteriorates
Solution Approach 1:
The patent applies composite materials by combining inherent flame resistant fibers (such as aramid) with solution-dyed polyester fibers in a blended yarn construction. This composite fiber approach allows the fabric to maintain flame resistance while achieving tighter weave density that provides chemical protection, thereby resolving the contradiction between comfort and chemical protection.
Solution Approach 2:
The patent changes the areal density parameter from lightweight to at least 150 g/m², and adjusts the optical transparency to at most 10%. These parameter changes indicate a transition from open weave to tighter construction, which improves chemical protection while the specific fiber blend and finish applications maintain wearer comfort and flame resistance.
2Reliability
If inherent flame resistant fibers are used to provide flame resistance, then flame resistance is improved, but wearer comfort deteriorates
Solution Approach 1:
The patent uses composite materials by blending inherent flame resistant fibers with solution-dyed polyester fibers. The polyester component improves comfort by reducing the roughness and stiffness associated with 100% aramid fabrics, while the inherent flame resistant fibers maintain the required flame protection, thus resolving the comfort-flame resistance contradiction.
Solution Approach 2:
The patent applies local quality by using solution-dyed polyester fibers specifically to modify the comfort characteristics of the fabric in contact with the wearer, while maintaining inherent flame resistant fibers in the blend to ensure flame protection. This localized functional differentiation resolves the contradiction between comfort and flame resistance.
3Ease of operation
If open weave construction is used to enhance comfort, then wearer comfort is improved, but chemical protection deteriorates
Solution Approach 1:
The patent changes the areal density parameter to at least 150 g/m² and optical transparency to at most 10%, indicating a tighter weave construction that provides chemical protection. This parameter change resolves the contradiction by establishing denser fabric structure while the fiber blend and finish applications maintain wearer comfort.
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 treated textile material provides improved comfort and high levels of protection from both flames and chemical hazards, maintaining effectiveness even after repeated launderings.
Implementation Method 1
a finish disposed on the first yarns and the second yarns, the finish comprising a fluorochemical repellent
Data Source
AI summary
A treated textile material comprises a textile substrate and a finish on the yarns making up the textile substrate. The yarns of the textile substrate comprise inherent flame resistant fibers. The finish comprises a fluorochemical repellent. The treated textile material exhibits improved resistance to chemical splashes and spills, such as those encountered in institutional and commercial laboratory settings.