Nonwoven composite
A nonwoven composite containing a first nonwoven layer having a plurality of primary fibers and optionally binder fibers, a thermoplastic film comprising a thermoplastic polymer having an elongation at break greater than 300% and a max softening point (thermomechanical analysis end point) between 150° C. and 200° C. as tested according to ASTM E2347-04 and containing a plurality of holes and an air flow resistance great than 1,500 Rayls. A second nonwoven layer having a plurality of bulking fibers and optionally binder fibers. The thermoplastic film is adjacent the bottom surface of the first nonwoven layer and the top surface of the second nonwoven layer and sandwiched between the first and second nonwoven layers. At least a portion of the primary fibers from the first nonwoven layer are located in the holes of the thermoplastic film and within the second nonwoven layer.
1. A nonwoven composite comprising:
a first nonwoven layer having an upper surface and a bottom surface, wherein the first nonwoven layer comprises a plurality of primary fibers and optionally binder fibers;
a thermoplastic elastomeric film comprising a thermoplastic elastomeric polymer obtaining a thermoplastic elastomeric film, wherein the film comprises a puncture resistant thermoplastic elastomeric polymer having an elongation at break greater than 300% and a max softening point (thermomechanical analysis end point) between 150° C. and 200° C. as tested according to ASTM E2347-04, wherein the thermoplastic elastomeric film comprises a plurality of holes and an air flow resistance great than 1,500 Rayls;
a second nonwoven layer having an upper surface and a bottom surface, wherein the second nonwoven layer comprises a plurality of bulking fibers and optionally binder fibers;
wherein the thermoplastic elastomeric film is adjacent the bottom surface of the first nonwoven layer and the top surface of the second nonwoven layer, and wherein at least a portion of the primary fibers from the first nonwoven layer are located in the holes of the thermoplastic elastomeric film and within the second nonwoven layer.
2. The nonwoven composite of claim 1 , further comprising an extruded thermoplastic layer on the bottom surface of the second nonwoven layer of the nonwoven composite.
3. The nonwoven composite of claim 2 , wherein the extruded thermoplastic layer is not porous.
4. The nonwoven composite of claim 2 , further comprising a sound absorbing nonwoven layer on the extruded thermoplastic layer, wherein the thickness of the sound absorbing nonwoven layer is greater than the thickness of the second nonwoven layer.
5. The nonwoven composite of claim 1 , wherein the primary fibers comprise polyester.
6. The nonwoven composite of claim 1 , wherein the first nonwoven layer is a random velour.
7. The nonwoven composite of claim 1 , wherein the random velour has a pile height of at least about 2 mm.
8. The nonwoven composite of claim 1 , wherein the thermoplastic elastomeric film comprises aromatic polyether polyurethane.
9. The nonwoven composite of claim 1 , wherein the thermoplastic elastomeric film comprises polyester polyurethane.
10. The nonwoven composite of claim 1 , wherein the thermoplastic elastomeric film has a max softening point (thermomechanical analysis end point) between 160° C. and 190° C. as tested according to ASTM E2347-04.
11. The nonwoven composite of claim 1 , wherein the primary fibers are in an amount of greater than about 60% wt of the first nonwoven layer.
12. The nonwoven composite of claim 1 , wherein thermoplastic elastomeric film has an air flow resistance of between 1500-4000 Rayls.
13. The nonwoven composite of claim 1 , wherein essentially no fibers from the second nonwoven layer are located in the first nonwoven layer.
14. A car comprising the nonwoven composite of claim 1 .
15. The car of claim 14 , further comprising an extruded thermoplastic layer on the bottom surface of the second nonwoven layer of the nonwoven composite.
16. The car of claim 15 , further comprising a sound absorbing nonwoven layer on the extruded thermoplastic layer, wherein the thickness of the sound absorbing nonwoven layer is greater than the thickness of the second nonwoven layer.
17. The car of claim 14 , wherein the first nonwoven layer is a random velour.
18. The car of claim 14 , wherein the thermoplastic elastomeric film comprises aromatic polyether polyurethane.
19. The car of claim 14 , wherein the thermoplastic elastomeric film comprises polyester polyurethane.