Patent attributes
A multi-ply knit fabric containing a first knit ply and a second knit ply. The first knit ply contains a plurality of first yarns and forms the upper surface of the fabric. The second knit ply forms the lower surface of the fabric and contains a plurality of polytetrafluoroethylene (PTFE) yarns having a density of about 2 to 2.25 g/cm3, a transmission in the IR region of 8-10 μm at least about 60%, and a thermal conductivity of at least about 0.2 W/(m·K). The plies are integrated through combined portions formed by at least one of the following methods: interlacing first yarns among the PTFE yarns of the second knit ply, interlacing PTFE yarns among the first yarns of the first knit ply, and interlacing a plurality of third yarns among the first yarns of the first knit ply and the PTFE yarns of the second knit ply.
