Infrared-transparent porous polymer textile for human body cooling and heating

Patent metadata

Field	Value
Publication number	US-2019008217-A1
Application number	US-201716066247-A
Country	US
Kind code	A1
Filing date	Feb 17, 2017
Priority date	Feb 17, 2016
Publication date	Jan 10, 2019
Grant date	—

Abstract

A method of regulating a temperature of a human body includes: (1) providing an article of clothing including a textile, wherein the textile includes at least one porous layer including a polyolefin; and (2) placing the article of clothing adjacent to the human body. The porous layer has pores having an average pore size in a range of 50 nm and 1000 nm.

First claim

What is claimed is:

1 . A method of regulating a temperature of a human body, comprising:
providing an article of clothing including a textile, wherein the textile includes at least one porous layer including a polyolefin; and placing the article of clothing adjacent to the human body, wherein the porous layer has pores having an average pore size in a range of 50 nm and 1000 nm.

2 . The method of claim 1 , wherein the porous layer has a transmittance of infrared radiation at a wavelength of 9.5 μm of at least 40%.

3 . The method of claim 1 , wherein the porous layer has an opacity to visible radiation over a wavelength range of 400 nm to 700 nm of at least 40%.

4 . The method of claim 1 , wherein the polyolefin includes at least one of polyethylene or polypropylene.

5 . The method of claim 1 , wherein the porous layer is a first layer, and the textile further includes a second layer adjacent to the first layer and including a textile material.

6 . The method of claim 5 , wherein the textile material includes at least one of cotton or polyester.

7 . The method of claim 1 , wherein the textile is chemically treated to become hydrophilic.

8 . The method of claim 1 , wherein the textile defines holes having an average size in a range of 1 μm to 1 mm.

9 . The method of claim 1 , wherein the textile further includes a first coating adjacent to the porous layer and a second coating adjacent to the first coating, and the first coating has a greater emissivity with respect to infrared radiation than the second coating.

10 . The method of claim 9 , wherein placing the article of clothing adjacent to the human body is such that, in a cooling mode, the first coating is placed further away from the human body than the second coating.

11 . The method of claim 9 , wherein placing the article of clothing adjacent to the human body is such that, in a heating mode, the second coating is placed further away from the human body than the first coating.

12 . A textile comprising:
a first layer having a transmittance of infrared radiation at a wavelength of 9.5 μm of at least 40%; a first coating adjacent to the first layer; and a second coating adjacent to the first coating, wherein the first coating and the second coating have different emissivities with respect to infrared radiation.

13 . The textile of claim 12 , wherein the first layer has pores having an average pore size in a range of 50 nm and 1000 nm.

14 . The textile of claim 12 , wherein the first layer includes a polyolefin.

15 . The textile of claim 12 , wherein the first coating has a first emissivity of infrared radiation at the wavelength of 9.5 μm, the second coating has a second emissivity of infrared radiation at the wavelength of 9.5 μm, and a difference between the first emissivity and the second emissivity is at least 0.4.

16 . The textile of claim 12 , further comprising a second layer having a transmittance of infrared radiation at the wavelength of 9.5 μm of at least 40%, the first coating and the second coating are disposed between the first layer and the second layer, and the second coating is adjacent to the second layer.

17 . The textile of claim 16 , wherein the first coating has a first emissivity of infrared radiation at the wavelength of 9.5 μm, the second coating has a second emissivity of infrared radiation at the wavelength of 9.5 μm, the first emissivity is greater than the second emissivity, and a thickness of the first layer is greater than a thickness of the second layer.

18 . A textile comprising:
at least one porous layer including a polyolefin; and a hydrophilic agent coated over the porous layer.

19 . The textile of claim 18 , wherein the porous layer is a first layer, and further comprising a second layer adjacent to the first layer and including a textile material.

Assignees

• Univ Leland Stanford Junior

Inventors

• Cui Yi
• Fan Shanhui
• Hsu Po-Chun
• Song Alex Yu
• Catrysse Peter B
• Peng Yucan

Classifications

• D10B2401/20

  optical · CPC title

• A41D31/065

  using layered materials · CPC title

• B32B2255/24

  Organic non-macromolecular coating · CPC title

• D06N3/04

  with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• B32B2255/02

  on fibrous or filamentary layer · CPC title