THERMOFORMABLE NONWOVEN COMPOSITE
    1.
    发明申请

    公开(公告)号:WO2023081064A1

    公开(公告)日:2023-05-11

    申请号:PCT/US2022/048185

    申请日:2022-10-28

    IPC分类号: B32B5/08 D04H1/00 D04H5/00

    摘要: A thermoformable nonwoven composite containing a nonwoven layer which contains a plurality of first staple fibers, a plurality of first binder fibers having a first melting point, and a plurality of second binder fibers having a second melting point, wherein the first staple fibers, first binder fibers, and second binder fibers intertwine and cross at crossover points. The difference first melting point and the second melting point differ by at least about 15°C, and at least 95% by weight of all of the fibers in the nonwoven layer are polyester. The thermoformable nonwoven composite also contains a first resin formulation containing a first resin. The first resin is located within the nonwoven and located in at least a portion of the crossover points. The first staple fibers, the first and second binder fibers, and the first resin all contain a polymer from the same chemical class.