Sateen Flame-Resistant Textile With Low Weight and High Air Permeability
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Solution Overview
Problem
Current flame-resistant textiles used for protecting workers from electric arc flashes are often heavy and uncomfortable due to their high weight, which compromises user comfort and air permeability while maintaining arc and flame protection.
Innovation Solution
A lightweight flame-resistant textile is developed using a sateen weave fabric with cellulosic fibers, treated with a tetrahydroxymethyl phosphonium salt or its condensate, and a hydrazide compound, which provides enhanced flame resistance and comfort through improved air permeability and thickness retention after washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional flame resistant textiles are used to provide arc and flame protection, then safety protection is improved, but weight increases and comfort deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the flame retardant treatment by using tetrahydroxymethyl phosphonium salt or its condensate combined with specific chemicals (urea, guanidines, guanyl urea, glycoluril, or polyamines) to create a modified chemical composition that achieves flame resistance with reduced weight and improved comfort properties
Solution Approach 2:
The patent creates a composite treatment system combining phosphorous-containing compounds with nitrogen-containing compounds (urea, guanidines, etc.) that work synergistically to provide flame resistance while maintaining lighter weight and better comfort characteristics compared to traditional single-chemistry treatments
2Reliability
If traditional flame resistant textiles are used to provide arc and flame protection, then safety protection is improved, but air permeability decreases and comfort deteriorates
Solution Approach 1:
The patent modifies physical parameters including thickness (maintaining at least 19.5 mils initial thickness and 25 mils after washing) and air permeability (at least 60 cfm) through optimized chemical treatment that does not compromise fabric structure, allowing breathability and comfort to be maintained alongside flame resistance
3Stability of the object's composition
If flame resistant treatment is applied to maintain thickness after washing, then durability is improved, but fabric weight increases
Solution Approach 1:
The patent optimizes the balance between thickness retention and weight by controlling the treatment composition and heat cure parameters, achieving minimum thickness retention (25 mils after washing) while keeping weight below 7 oz/yd² through efficient chemical formulation
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 textile achieves effective arc and flame protection with a weight of less than 7 oz/yd², maintaining thickness and air permeability, thus enhancing user comfort and meeting flammability standards.
Implementation Method 1
a tetrahydroxymethyl phosphonium salt or its condensate with a chemical or chemicals selected from the group consisting of urea, guanidines, guanyl urea, glycoluril, and polyamines
Implementation Method 2
When the sateen weave fabric to which the treatment has been applied has been heat-cured and oxidized at least a portion of the cellulosic fibers have a pentavalent phosphate compound polymerized therein
Implementation Method 3
When the sateen weave fabric to which the treatment has been applied has been heat-cured and oxidized at least a portion of the cellulosic fibers have a pentavalent phosphate compound polymerized therein
Implementation Method 4
When the sateen weave fabric to which the treatment has been applied has been heat-cured and oxidized at least a portion of the cellulosic fibers have a pentavalent phosphate compound polymerized therein
Data Source
AI summary
A flame resistant textile is provided. The textile is a sateen weave fabric containing cellulosic fibers, where the sateen weave fabric has a thickness of at least 19.5 mils, a thickness of at least 25 mils after 3 home washes at 120° F., an air permeability of at least 60 cfm, and a weight of less than about 7 oz/yd2. The sateen weave fabric also contains a treatment, where the treatment contains a tetramethylhydroxy phosphonium salt or its condensate and chemical selected from the group consisting of urea, guanidines, guanyl urea, glycoluril, and polyamines. When the sateen weave fabric to which the treatment has been applied has been heat-cured and oxidized at least a portion of the cellulosic fibers have a pentavalent phosphate compound polymerized therein. The method for producing the flame resistant textile is also provided.