Patent ID: 11920268
Assignee: FITESA GERMANY GMBH
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D  B | IPC B  D

Claim 11:
12. A process for preparing an aliphatic polyester nonwoven fabric, the method comprising:
providing a first stream of molten or semi-molten polymer resin comprising an aliphatic polyester polymer resin;
providing a second stream of molten or semi-molten polymer resin comprising a second polymer resin selected from the group consisting of an aliphatic polyester, polyethylene, polypropylene, polyethylene terephthalate, and combinations thereof;
extruding the first and second streams of molten or semi-molten polymer resins through a spin beam to form a plurality of multicomponent continuous filaments;
depositing the plurality of multicomponent continuous filaments on a collection surface disposed below an outlet of the spin beam to form the aliphatic polyester nonwoven fabric; and
exposing the multicomponent continuous filaments to ions, wherein the step of exposing the plurality of multicomponent continuous filaments to ions consists of exposing the plurality of multicomponent continuous filaments to ions at a point downstream of where the multicomponent continuous filaments are deposited on the collection surface, wherein the multicomponent continuous filaments are only exposed to ions downstream of the point where the multicomponent filaments are deposited on the collection surface.