Fire-Resistant Bi-Layer Textile Composite for Aircraft Seating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current fire-resistant textile barriers for aircraft seating are heavy, aesthetically disruptive, and compromise comfort while failing to meet the requirements of flammability and physical testing standards, particularly the Oil Burn Test.
Innovation Solution
A bi-layer composite textile comprising a nonwoven layer with thermally stable, non-thermoplastic fibers and a knit layer with stretchable, fire-resistant yarns, where the nonwoven fibers extend through the knit layer to form the upper surface, providing a lightweight, flexible, and abrasion-resistant barrier that maintains insulative properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional fire barrier textile with a second textile layer is used to provide abrasion resistance, then the fire resistance and physical durability are improved, but the weight, comfort, and aesthetics are worsened
Solution Approach 1:
The patent applies composite materials by combining a nonwoven fire-resistant layer with a knit abrasion-resistant layer into a bi-layer structure. The nonwoven layer provides fire resistance while the knit layer provides abrasion resistance, creating a composite material that achieves both protective functions simultaneously. This resolves the contradiction by integrating multiple functions into a unified composite structure rather than adding separate layers.
Solution Approach 2:
The patent merges the fire barrier function and abrasion resistance function into a single integrated textile composite. The knit layer and nonwoven layer are bonded together to form one unified structure that provides both fire protection and surface durability. This merging eliminates the need for separate protective layers, reducing overall weight while maintaining both protective functions.
2Object-affected harmful factors
If a fire barrier textile is added between the foam cushion and outer dress cover, then flammability compliance is improved, but comfort and aesthetics are worsened
Solution Approach 1:
The patent applies local quality by assigning different functional properties to different layers of the composite textile. The nonwoven layer is optimized for fire resistance with appropriate fiber composition and structure, while the knit layer is optimized for comfort and aesthetics with softer texture and stretch properties. This local differentiation allows each layer to excel at its specific function while contributing to overall comfort and appearance.
Solution Approach 2:
The patent uses a thin-film approach by creating a lightweight bi-layer composite that provides fire protection without significant bulk. The knit layer acts as a flexible, thin film that conforms to the seat cushion surface, providing comfort and aesthetic appearance while the nonwoven layer provides fire protection. This thin-film structure minimizes disruption to comfort and aesthetics.
3Strength
If a benchmark fire barrier product with an attached textile layer is used, then abrasion resistance is improved, but the complexity and cost are worsened
Solution Approach 1:
The patent segments the protective functions into two distinct layers: a nonwoven layer for fire resistance and a knit layer for abrasion resistance. Each layer is optimized for its specific function with appropriate material selection and construction. This segmentation allows for simplified manufacturing of each individual layer while achieving complex overall performance through their combination.
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 bi-layer composite effectively passes flammability and abrasion tests, retains flexibility and integrity, and minimizes mass contribution, while maintaining comfort and aesthetics, outperforming traditional woven scrims in both lab-scale burn tests and real-world applications.
Implementation Method 1
The nonwoven textile contains a plurality of first fire-resistant fibers, where the first fire-resistant fibers are non-thermoplastic. The knit textile contains a plurality of first fire-resistant yarns, where the first fire-resistant yarns are non-thermoplastic.
Implementation Method 2
The nonwoven layer and the knit layer are bonded together to form a bi-layer composite textile that is lightweight, flexible, and resistant to abrasion, while maintaining its insulative properties.
Data Source
AI summary
The application relates to a fire-resistant textile composite having an upper surface and a lower surface. The composite contains a nonwoven layer and a knit layer. The nonwoven layer has a first and second side and contains a nonwoven textile. The nonwoven textile contains a plurality of first fire-resistant fibers, where the first fire-resistant fibers are non-thermoplastic. The nonwoven layer forms the lower surface of the textile composite. The knit layer contains a knit textile having a first and second side and the second side of the knit layer is adjacent to the first side of the nonwoven layer. The knit textile contains a plurality of second fire-resistant yarns, where the second fire-resistant yarns are non-thermoplastic. At least a portion of the first fire-resistant fibers from the nonwoven layer extend through the first side of the knit layer and form the upper surface of the textile composite.