Electric Heating Textile with Aromatic Polyamide and Conductive Yarn
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Solution Overview
Problem
Conventional electric heating textiles are limited by their low maximum temperature of about 60° C, restricting their application due to structural limitations.
Innovation Solution
An electric heating textile is developed, comprising an electric heating layer with conductive yarn and aromatic polyamide fibers, heat-insulating layers, and a protective layer, which allows for higher temperature performance by incorporating high-temperature-resistant materials like poly(m-phenylene isophthalamide) fibers and conductive yarns, and a manufacturing method involving sewing of these layers to enhance heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional electric heating textiles are used, then the structure is simple and easy to manufacture, but the maximum temperature is limited to about 60°C
Solution Approach 1:
The patent employs composite materials by combining aromatic polyamide fibers (such as aramid fibers) with conductive yarns to form an electric heating layer. The aromatic polyamide fibers provide high-temperature resistance, allowing the textile to withstand temperatures exceeding 60°C, while the conductive yarns generate heat through electrical resistance. This composite structure enables the textile to achieve higher heating temperatures without compromising structural integrity or safety.
2Productivity
If the heating temperature is increased to improve heating performance, then the heating efficiency is improved, but the risk of accidents increases
Solution Approach 1:
The patent introduces a heat-insulating layer as an intermediary component between the electric heating layer and the external environment. This heat-insulating layer acts as a thermal barrier that prevents excessive heat from escaping the textile, thereby maintaining high heating efficiency while reducing the risk of burns or accidents. The heat-insulating layer mediates the thermal energy, ensuring it is contained within the textile structure rather than being released uncontrolled.
Solution Approach 2:
The patent utilizes a flexible protective layer that covers the electric heating layer. This thin film structure provides an additional safety barrier while maintaining the flexibility and comfort of the textile. The protective layer prevents direct contact with the hot surfaces, reducing accident risk while allowing the textile to be used for high-temperature heating applications.
3Temperature
If heat-insulating layers are added to manage heat, then temperature control is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent divides the textile structure into distinct functional segments: an electric heating layer containing conductive yarns and aromatic polyamide fibers, a heat-insulating layer, and a protective layer. Each segment is manufactured separately and then assembled together through sewing or bonding processes. This segmentation allows for specialized manufacturing of each component, improving overall temperature control while keeping the manufacturing process manageable through modular assembly.
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 significantly higher heating temperatures, enabling applications such as a textile flatiron that can reach 100° C to 180° C faster and cool down quicker, reducing the risk of accidents associated with conventional flatirons.
Implementation Method 1
The electric heating layer includes at least one conductive yarn capable of generating heat
Implementation Method 2
The aromatic polyamide fiber has a melting point of 400° C. or higher and can resist temperature up to 400° C.
Implementation Method 3
the heat-insulating layers are under the electric heating layer
Data Source
AI summary
An electric heating textile is provided. The electric heating textile includes an electric heating layer, plural heat-insulating layers and a protective layer. The electric heating layer includes at least one conductive yarn capable of generating heat and plural aromatic polyamide fibers. The heat-insulating layers are under the electric heating layer. The protective layer is on the electric heating layer. A method for manufacturing the electric heating textile is also disclosed in the specification.