| 摘要 |
<p>A fibrous, non-woven thermal insulation comprises synthetic polymeric resin microfibers, staple fibers and bonding fibers which are randomly oriented and randomly intermingled in a single layer. The microfibers comprise between 0 % and 95 % by weight virgin synthetic polymeric resin and between 5 % and 100 % by weight recycled polyethylene terephthalate. In one embodiment the microfibers have an average diameter between 1 to 10 microns and comprise between 5 % and 80 % by weight of the insulation; the staple fibers have an average diameter between 10 and 30 microns and comprise between 5 % and 90 % by weight of the insulation; and the bonding fibers have an average diameter between 0.9 and 15 denier and comprise between 5 % and 95 % by weight of the insulation. The bonding fibers have thermoplastic surfaces with a lower temperature softening point than the microfibers and staple fibers and bond the fibers together to form the insulation material.</p> |
