Thin clothing insulation with improved draping and comfort characteristics

摘要

The invention is directed to a synthetic fiber thermal insulator material in the form of a flexible, conformable, sheet-like structure, which structure comprises an assemblage of:(a) from about 50 to 100% by weight of slickened, spun and drawn, crimped staple polymeric microfibers having a diameter of from about 3 to 12 microns;(b) from about 0 to 30% by weight of unslickened, spun and drawn, crimped staple polymeric microfibers having a diameter of from about 3 to 12 microns; and(c) from about 0 to 30% by weight of synthetic polymeric macrofibers having a diameter of from about 12 to 50 microns, wherein at least some of the fibers are bonded or mechanically interconnected one to another, and wherein the resultant fiber assemblage has a thermomechanical parameter T greater than about 0.25 (m²·K/W·m)/(mN·cm).