FIELD: transport.
SUBSTANCE: invention relates to vehicle trim part intended for noise suppression in vehicle. Sound insulating part of trim is proposed which has acoustic properties of mass-spring with mass layer and separating layer where mass layer consists of porous fibrous layer and impermeable thin protecting layer, herewith, the impermeable thin protecting layer is located between the porous fibrous layer and separating layer, and all the layers are couched together, herewith, the porous fibrous layer has dynamic Young's modulus (Pa) of at least (96·AW·t), where AW is - specific weight (g/m2) and t is thickness (mm) of porous fibrous layer.
EFFECT: technical result consists in obtaining sound insulating part of trim providing more effective noise suppression in a vehicle.
9 cl, 6 dwg
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