The present invention relates to a heat-hardened sound-absorbing nonwoven fabric having a flow resistance of 150 Ns/m3 to 5000 Ns/m3 and a weight per unit area of 150 g/m2 to 600 g/m2 as measured in DIN EN 29053, May 1993, the nonwoven fabric comprising a) scaffold staple fibers having an average denier of 0.9 dtex to 8.8 dtex, the proportion of the scaffold staple fibers being 50 wt% to 90 wt% relative to the total weight of the nonwoven fabric, and b) a heat-hardened sound-absorbing nonwoven fabric having a flow resistance of 150 Ns/m3 to 5000 Ns/m3 as measured in DIN EN 29053, and a weight per unit area of 150 g/m2 to 600 g/m2 as measured in DIN EN 29053, a proportion of core/sheath binder fibers is from 10 wt% to 50 wt%, where the scaffold staple fibers contain a proportion of tear scaffold staple fibers, and the core/sheath binder fibers contain a proportion of tear core/sheath binder fibers.
本发明涉及一种热加固的吸音无纺布,具有按DIN EN 29053,1993年5月测得的150Ns/m3至5000Ns/m3的流动阻力和150g/m2至600g/m2的单位面积重量,所述无纺布包括a)平均纤度为0.9dtex至8.8dtex的支架短纤维,所述支架短纤维相对于所述无纺布的总重量的比例为50wt%至90wt%,和b)相对于所述无纺布的总重量,比例为10wt%至50wt%的芯/鞘粘合纤维,其中所述支架短纤维含有一定比例的撕裂支架短纤维,并且所述芯/鞘粘合纤维含有一定比例的撕裂芯/鞘粘合纤维。
Sustainable sound-absorbing non-woven fabric
可持续的吸音无纺布
15.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | D04H Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material , MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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