Infrared-Reflecting Covering Material

Abstract

An invention describes a drapable IR-reflecting material for garments. The IR-reflecting material comprises a water-vapor-permeable metallized ply supporting an ah-permeable drapable convective ply having a three-dimensionally transmissive structure. The outer surface of the convective ply, said outer surface being opposite to the metallized ply, is formed by an air-permeable sheetlike structure. The convective ply causes heat convection of temperatures reflected by the metallized ply in order that the outer surface of the convective ply may be brought into line with the ambient temperature.

1 . An Infrared-reflecting material for covering objects comprising:
 at least one metallized water-vapor-permeable ply having a top surface and a bottom surface; and   at least one connective ply that is air permeable, and drapable and has a three-dimensionally transmissive structure, wherein the convective ply is disposed on one or more of the top surface and bottom surface of the metallized ply.   
     
     
         2 . The material according to  claim 1 , wherein the convective ply has a top surface and an air-permeable sheetlike structure is disposed on top thereon. 
     
     
         3 . The material according to  claim 1 , wherein the convective ply has a top surface and the top surface is formed by an air-permeable sheetlike structure. 
     
     
         4 . The material according to  claim 1 , wherein the convective ply is disposed on the top surface of the metallized water-vapor-permeable ply. 
     
     
         5 . The material according to  claim 1 , wherein the convective ply has a thickness of at least 2 mm. 
     
     
         6 . The material according to  claim 1 , wherein the convective ply has a structure that is riblike, honeycomblike, pimpled, netlike, beflocked, or foamlike. 
     
     
         7 . The material according to  claim 1 , wherein the convective ply comprises spacers perpendicular to one or both of the top surface and bottom surface of the metallized water-vapor-permeable ply. 
     
     
         8 . The material according to  claim 1 , wherein the convective ply a three-dimensional pimpled formed-loop knit. 
     
     
         9 . The material according to  claim 1 , wherein the convective ply is at least one material selected from the group consisting of polypropylene, polyester, polyurethane, polyethylene, polyimide and combinations thereof. 
     
     
         10 . The material according to  claim 1 , wherein the convective ply has an air permeability in the z direction of at least 100 l/m 2 s at a pressure of 10 Pa. 
     
     
         11 . The material according to  claim 1 , wherein the convective ply has an air permeability in the x and y direction of at least 50 l/m 2 s at a pressure of 10 Pa. 
     
     
         12 . The material according to  claim 2 , wherein the sheetlike structure has an air permeability of at least 50 l/m 2 s at a pressure of 10 Pa. 
     
     
         13 . The material according to  claim 1 , wherein the sheetlike structure is selected from the group consisting of polypropylene, silk, polyethylene, polyamide, polyester, polyurethane and combinations thereof. 
     
     
         14 . The material according to  claim 1 , wherein the metallized ply comprises a metallized textile. 
     
     
         15 . The material according to  claim 1 , wherein the metallized ply comprises a metallized membrane. 
     
     
         16 . The material according to  claim 14 , wherein the metallized membrane is watertight and water vapor permeable. 
     
     
         17 . The material according to  claim 1 , wherein the metallized ply comprises a microporous water-vapor-permeable polymeric membrane having a top surface, a bottom surface and pores therein wherein a metal layer covers one or more of the top surface and bottom surface of the polymer membrane and exposed sub-surface portions thereof. 
     
     
         18 . The material according to  claim 17 , wherein the metal layer is selected from the group consisting of aluminum, gold, silver, copper, zinc, cobalt, nickel, platinum, palladium, tin, titanium, their alloys, oxides, nitrides, hydroxides and combinations thereof. 
     
     
         19 . The material according to  claim 17 , wherein the microporous membrane is selected from the group consisting of expanded polytetrafluoroethylene (ePTFE), polyethylene, polypropylene, polyurethane and blends thereof. 
     
     
         20 . The material according to  claim 1 , wherein the metallized ply comprises a metallized microporous polymeric membrane of expanded polytetrafluoroethylene. 
     
     
         21 . The material according to  claim 20 , wherein the ePTFE membrane comprises a polymeric layer which is water vapor permeable, continuous and hydrophilic. 
     
     
         22 . The material according to  claim 1 , wherein the infrared-reflecting material forms at least part of a clothing or tenting material. 
     
     
         23 .- 39 . (canceled)