公开(公告)号：US20180023215A1

公开(公告)日：2018-01-25

申请号：US14883907

申请日：2015-10-15

申请人： Nanomeld LLC

发明人： John A. Robertson ,  Douglas J. Morgan ,  Stephen D. Ingle

IPC分类号： D01D5/00 ,  B01D39/16 ,  B01D46/54 ,  B01D46/00 ,  D01F8/04 ,  D04H3/11

CPC分类号： D01D5/003 ,  B01D39/163 ,  B01D46/0001 ,  B01D46/546 ,  B01D2239/0492 ,  B01D2239/0631 ,  B01D2239/1233 ,  D01D5/0084 ,  D01F8/04 ,  D04H3/11

摘要： A method of bonding a nanofiber web of nanofibers having diameters of between about 50 nanometers and about 2,000 nanometers onto a surface of a woven or nonwoven polymeric media having media fiber diameters of between about 700 nanometers and about 50,000 nanometers utilizes exposing the topmost layer of nanofibers and media fibers to a jet of heated air for a time and at a distance such that substantially only the topmost layer of fibers are bonded. The jet of heated air exits through a nozzle slot having a length of less than about 2 inches in the nanofiber web travel direction. The temperature of the heated air ranges from about 2 to about 10 times the nanofiber melting temperature, and heat air has a nozzle slot velocity of greater than about 500 feet/minute. An adhesive may bond the nanofibers, to a media, which may be bi-component fiber fibers.

公开(公告)号：US10266966B2

公开(公告)日：2019-04-23

申请号：US14883907

申请日：2015-10-15

申请人： Nanomeld LLC

发明人： John A. Robertson ,  Douglas J. Morgan ,  Stephen D. Ingle

IPC分类号： D01D5/00 ,  B01D46/00 ,  D01F8/04 ,  D04H3/11 ,  B01D46/54 ,  B01D39/16

摘要： A method of bonding a nanofiber web of nanofibers having diameters of between about 50 nanometers and about 2,000 nanometers onto a surface of a woven or nonwoven polymeric media having media fiber diameters of between about 700 nanometers and about 50,000 nanometers utilizes exposing the topmost layer of nanofibers and media fibers to a jet of heated air for a time and at a distance such that substantially only the topmost layer of fibers are bonded. The jet of heated air exits through a nozzle slot having a length of less than about 2 inches in the nanofiber web travel direction. The temperature of the heated air ranges from about 2 to about 10 times the nanofiber melting temperature, and heat air has a nozzle slot velocity of greater than about 500 feet/minute. An adhesive may bond the nanofibers, to a media, which may be bi-component fiber fibers.