Graduated Thermal Insulation Fabric for Body Extremity Warming
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Solution Overview
Problem
Current fabrics and clothing provide constant thermal and reflective properties, failing to address the varying insulatory needs of the human body and extremities, leading to discomfort and inefficiency in heat retention and loss.
Innovation Solution
Development of thermally graded fabrics with varying fiber diameters, fiber counts, and blended fibers to provide graduated thermal and reflective properties, allowing for tailored insulation across different body areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If constant thermal insulatory properties are used in fabrics, then manufacturing is simple and cost-effective, but the varying insulatory needs of different body areas cannot be met
Solution Approach 1:
The patent applies local quality by creating fabric regions with different thermal insulatory properties to match the varying heat loss characteristics of different body areas. Extremity regions use fibers with higher insulatory properties (lower thermal conductivity) while core regions use fibers with lower insulatory properties (higher thermal conductivity), allowing each region to be optimized for its specific thermal needs.
Solution Approach 2:
The patent implements parameter changes by varying the thermal conductivity parameter of fibers across different fabric regions. This is achieved through blending fibers with different thermal conductivities in varying proportions, creating a gradient from high insulatory properties at extremities to lower insulatory properties at the core, thereby adapting the fabric's thermal performance to anatomical requirements.
2Adaptability or versatility
If constant reflective and absorptive properties are used in fibers, then manufacturing is straightforward, but varying reflective and absorptive needs of body areas are not addressed
Solution Approach 1:
The patent applies local quality by assigning different reflective and absorptive properties to fibers in different body regions. Extremity regions incorporate fibers with higher reflectivity and absorptivity to compensate for greater heat loss, while core regions use fibers with more moderate optical properties, allowing each region to optimize its thermal management based on local physiological conditions.
Solution Approach 2:
The patent employs composite materials by blending fibers with different optical and thermal properties within the same fabric structure. This includes combining fibers with varying reflective, absorptive, and insulatory characteristics to create a multi-functional material that simultaneously addresses thermal conduction, radiation, and convection heat transfer mechanisms across different body areas.
3Loss of energy
If uniform fiber composition is used throughout the fabric, then manufacturing is simple, but heat retention efficiency varies suboptimally across body areas
Solution Approach 1:
The patent applies local quality by optimizing fiber composition in each body region to minimize heat loss. Extremity regions use fiber blends with higher insulatory properties and greater reflectivity to reduce the significant heat loss from these areas, while core regions use fiber blends with lower insulatory properties to prevent overheating, thereby minimizing total body heat loss through spatially optimized material properties.
Solution Approach 2:
The patent implements parameter changes by systematically varying the thermal conductivity, reflectivity, and absorptivity parameters of fiber blends across different fabric regions. This creates a thermal gradient that matches the body's heat loss pattern, with higher insulatory parameters at extremities and lower parameters at the core, optimizing overall heat retention efficiency.
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 thermally graded fabrics effectively manage heat retention and loss by providing optimal insulation to extremities, enhancing comfort and efficiency in temperature regulation.
Implementation Method 1
a thermally graded fabric comprising a non-thermally graded fiber blended with a thermally graded fiber having graduated thermal properties along its length to meet the varying insulating needs of the human body and extremities
Implementation Method 2
the reflective and absorptive properties associated with the fibers or threads are constant as well
Implementation Method 3
an absorptively or reflectively graded fiber having; an increasing ration of relectivity to increase the energy reflectance properties along one or more spans of the fabric, or an increasing ration of absorptivity to reflectivity to increase the energy absorbance properties
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
An article of manufacture for warming human extremities via graduated thermal insulation with a blanket comprised of concentrations of and transitions to and from concentrations of various types of woven thread fabric or non-woven fabric, having various properties of thermal insulation.