Multilayer fabric with selective radiation filter
First Claim
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1. An article of apparel, comprising:
- a multilayer fabric comprising;
a microporous water vapor permeable layer comprising pores that allow the transmission of far infrared (FIR) radiation and solar radiation; and
a textile layer coupled to the microporous water vapor permeable layer,wherein the multilayer fabric comprises a plurality of zones,wherein a first zone of the microporous water vapor permeable layer comprises a first pore pattern and a second zone of the microporous water vapor permeable layer comprises a second pore pattern,wherein the first pore pattern in the first zone comprises a first pore size range that allows the transmission of a first percentage of FIR radiation and the second pore pattern in the second zone comprises a second pore size range which is different from the first pore size range and allows the transmission of a second percentage of FIR radiation,wherein the pores of the microporous water vapor permeable layer in first pore pattern and the second pore pattern have a pore size in a range of 1.0 micron to 14.0 microns,wherein the pores in the first pore size range have a first average pore size,wherein the pores in the second pore size range have a second average pore size greater than the first average pore size, andwherein the first percentage of FIR radiation is greater than the second percentage of FIR radiation.
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Abstract
A multilayer fabric for selectively blocking or transmitting particular wavelengths in the electromagnetic spectrum, such solar radiation, and far infrared (FIR) radiation. The multilayer fabric may include a microporous water vapor permeable layer that selectively filters particular wavelengths depending on the size of its pores. In some embodiments, the multilayer fabric may include a nanostructured layer that selectively filters particular wavelengths.
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Citations
14 Claims
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1. An article of apparel, comprising:
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a multilayer fabric comprising; a microporous water vapor permeable layer comprising pores that allow the transmission of far infrared (FIR) radiation and solar radiation; and a textile layer coupled to the microporous water vapor permeable layer, wherein the multilayer fabric comprises a plurality of zones, wherein a first zone of the microporous water vapor permeable layer comprises a first pore pattern and a second zone of the microporous water vapor permeable layer comprises a second pore pattern, wherein the first pore pattern in the first zone comprises a first pore size range that allows the transmission of a first percentage of FIR radiation and the second pore pattern in the second zone comprises a second pore size range which is different from the first pore size range and allows the transmission of a second percentage of FIR radiation, wherein the pores of the microporous water vapor permeable layer in first pore pattern and the second pore pattern have a pore size in a range of 1.0 micron to 14.0 microns, wherein the pores in the first pore size range have a first average pore size, wherein the pores in the second pore size range have a second average pore size greater than the first average pore size, and wherein the first percentage of FIR radiation is greater than the second percentage of FIR radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification