| 摘要 |
<p>An insulating article comprises as insulating material goose down or other fibrous insulation mixed together with an excess of submicron finely divided hydrophobic particulate metal or metalloid oxide pigment. The mixed material is sealed in an envelope. The envelope is tightly woven (or similar) fabric which is permeable to gas, but retains the pigment. An envelope having good breathability and, hence, dryability is provided together with improved insulation and resistance to water penetration and absorption. In addition, the envelope may be compressed when not in use and still recover its loft thereafter when the pressure is released.</p> |
