Layered Warming Blanket Coating for Heat Retention and Breathability
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Solution Overview
Problem
Existing metalized materials lack breathability and flexibility, limiting their effectiveness in retaining body heat while conforming to a user's body and providing vapor permeability.
Innovation Solution
A warming blanket design incorporating a perspiration absorptive layer (PAL) with through-holes, a metal coating layer (MCL), and a transparent coating layer (TCL) to enhance flexibility, breathability, and thermal reflection, allowing electromagnetic radiation to be reflected back to the user while absorbing perspiration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a metal coating is applied to a base substrate to retain body heat, then thermal reflection is improved, but breathability and flexibility deteriorate
Solution Approach 1:
The blanket is divided into multiple functional layers: a base substrate layer, a metal coating layer for thermal reflection, and a vapor permeable layer for breathability. This segmentation allows each layer to perform its specific function optimally while collectively resolving the contradiction between heat retention and breathability
Solution Approach 2:
The invention uses a composite structure combining different materials with complementary properties: the base substrate provides structural support and flexibility, the metal coating provides thermal reflection, and the vapor permeable layer provides breathability. This composite approach allows the blanket to simultaneously achieve heat retention and breathability
2Loss of energy
If a metal coating is applied to a base substrate to reflect body heat, then thermal reflection is improved, but vapor permeability deteriorates
Solution Approach 1:
The blanket structure separates the thermal reflection function (metal coating layer) from the vapor transmission function (vapor permeable layer). This segmentation allows vapor to pass through the permeable layer while the metal layer reflects heat, resolving the contradiction between heat retention and vapor permeability
Solution Approach 2:
The vapor permeable layer acts as an intermediary between the user's body and the metal coating layer, allowing vapor to pass through while the metal layer reflects thermal radiation. This intermediary layer resolves the contradiction by enabling vapor transmission while maintaining thermal reflection
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 design effectively reduces heat loss by reflecting body heat back to the user, while maintaining flexibility and breathability, making it suitable for outdoor and nighttime use.
Implementation Method 1
the metalized materials reflect around 90% of a user's body heat to mitigate heat loss from the user's body
Implementation Method 2
the MCL layer, for example, provides thermal reflection that may reflect electromagnetic radiation from the external environment
Implementation Method 3
The PAL, for example, may comprise a fabric that is capable of absorbing and/or wicking away perspiration from a user's body
Implementation Method 4
capable of absorbing and/or wicking away perspiration
Implementation Method 5
The TCL, for example, provides a layer that mostly transmits several wavelengths of light therethrough and enables the external light to reach the MCL
Implementation Method 6
the TCL also functions as a layer of thermal insulation to mitigate heat loss from the MCL into the external environment
Data Source
Figure 1
Figure 2~3
AI summary
Warming blankets are provided, in which the warming blankets include (i) a perspiration absorptive layer (PAL); (ii) a metal coating layer (MCL); and (iii) a transparent coating layer (TCL); wherein the MCL is located directly or indirectly between the PAL and the TCL. Methods of producing a warming blanket are also provided.