Layered Sound Absorptive Non-Woven Fabric
OwnerKlara Kalinova, Filip Sanetrnik +2inventors
InventorsKlara Kalinova, Filip Sanetrnik, Oldrich Jirsak, Ladislav Mares
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Abstract
The invention relates to the layered sound absorptive non-woven fabric containing the resonance membrane and at least one another layer (1, 3) of the fibrous material at which the resonance membrane is created by a layer (2) of nanofibres having diameter to 600 nanometers and of surface weight 0.1 to 5 g/m2, at the same time the resonance membrane together with at least one layer (1, 3) of fibrous material is formed by cross laying to the required thickness and surface weight.
Claims5
The layered sound absorptive non-woven textile containing the resonance membrane and at least one another layer of fibrous material, characterised by that the resonance membrane is created by a layer (2) of nanofibres of diameter to 600 nanometers and of surface weight 0.1 to 5 g/m2.
The layered sound absorptive non-woven textile according to any of the previous claims, characterised by that the resonance membrane together with another at least one layer (1, 3) of fibrous material is formed by means of cross laying into the system of layers having the required thickness and/or surface weight.
Dependencies are inferred from the claim text.