초록

A plurality of layers of high-loft polyester fiberfill batting separated by sheets of metal foil or metalized polymeric film results in an unexpected increase in thermal insulating properties based on weight which can provide thermal insulation equivalent to natural down.

대표청구항 ▼

An improved insulating material for use in thermally insulated textile articles which material consists essentially of a plurality of substantially parallel layers of high-loft polyester fiberfill consisting essentially of intermingled hollow fibers having a denier per fiber of 4 to 6 and a void con

An improved insulating material for use in thermally insulated textile articles which material consists essentially of a plurality of substantially parallel layers of high-loft polyester fiberfill consisting essentially of intermingled hollow fibers having a denier per fiber of 4 to 6 and a void content of from 8 to 30 percent with adjacent layers being separated from one another by a thin flexible sheet of metal foil or metalized polymeric film with the layered structure having an average density within the range of from about 0.35 to about 0.6 lb./ft.3 and the thickness of each fiberfill layer is within the range of about 0.25 to 0.6 in. so that compared to an all fiber sample of the same weight and density the increase in CLO units due to the separating sheets corresponds to an increase of at least 15 percent.