公开(公告)号：US20180245252A1

公开(公告)日：2018-08-30

申请号：US15747444

申请日：2016-07-15

Applicant: Carl Freudenberg KG

Inventor： Robert Groten ,  Benedicte Beck ,  Ulrich Jahn ,  Abdelkader Ameur ,  Jean-Francois Kerhault

IPC: D04H3/11 ,  D04H3/016 ,  D04H3/011

CPC classification number: D04H3/11 ,  D04H1/495 ,  D04H3/011 ,  D04H3/016 ,  D04H3/018 ,  D10B2331/02 ,  D10B2331/04 ,  D10B2403/01 ,  D10B2503/06 ,  D10B2505/08

Abstract: In an embodiment, the present invention provides a method for producing a structured microfilament non-woven, including: forming a non-woven by spinning microfilaments and/or composite filaments that can be split into microfilaments to form at least one fiber layer, stretching the at least one fiber layer, and laying the at least one fiber layer; thermally pre-bonding the non-woven; treating the thermally pre-bonded non-woven using a pressurized medium in order to break the thermal pre-bonding at least in part; and further applying a pressurized medium to the non-woven while the non-woven is resting on a structure-producing surface, so as to obtain a structured microfilament non-woven.