The invention discloses an automobile sound-absorbing felt front wall material and a production process, relates to the related field of automobile felt front wall materials, and aims to solve the problem that in the prior art, the production cost of an existing front wall material is high. A material main body comprises a surface layer, a base layer is arranged at the lower end of the surface layer, the surface layer is a perforated PE/PA film, and the perforated PE/PA film is arranged at the lower end of the base layer; the base layer is a perforated PE/PA film, the membrane hole pitch of the perforated PE/PA film is set to be 1mm, the base layer is a mixed fiber soft felt, the mixed fiber soft felt is formed by mixing polyester fibers and polypropylene fibers, the mixing ratio of the polyester fibers to the polypropylene fibers is set to be 1: 2, the gram weight of the mixed fiber felt is set to be 80-100g/m < 2 >, and the gram weight of the perforated PE/PA film is set to be 50-500g/m < 2 >.
本发明公开了一种汽车吸音毛毡前围材料及生产工艺,涉及汽车毛毡前围材料相关领域,为解决现有技术中的无法解决现有前围材料生产成本较高的问题,所述材料主体包括面层,所述面层的下端设置有基层,所述面层设置为穿孔PE/PA膜,且穿孔PE/PA膜的膜孔间距设置为1mm,所述基层设置为混合纤维软毡,且混合纤维软毡设置为聚酯纤维与聚丙烯纤维混合,所述聚酯纤维与聚丙烯纤维的混合比例设置为1:2,所述混合纤维毡的克重设置为80‑100g/㎡,所述穿孔PE/PA膜的克重设置为50‑500g/㎡。
Automobile sound-absorbing felt front wall material and production process
一种汽车吸音毛毡前围材料及生产工艺
2022-11-22
Patent
Electronic Resource
Chinese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Production method of automobile felt sound-insulation pad
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