公开(公告)号：US11957550B2

公开(公告)日：2024-04-16

申请号：US16491999

申请日：2018-03-19

Applicant: GDM S.p.A.

Inventor： Matteo Piantoni ,  Valerio Soli ,  Marco Rosani ,  Federico Toscani ,  Giuseppe Poli

IPC: A61F13/15 ,  A61F13/532

CPC classification number: A61F13/15658 ,  A61F13/15699 ,  A61F13/5323

Abstract: A method for forming an absorbent pad including a first layer, a second layer and an absorbent material interposed between the first and the second layer and arranged according to a spreading pattern M1 having at least one channel which is free of absorbent material, includes a step of feeding a first web, intended to form the first layer of the pad; a step of feeding a second web, intended to form the second layer of the pad; a step of spreading the absorbent material on the first web according to the spreading pattern M1; a step of spreading an adhesive on the first web according to a gluing pattern; a step of welding the first web and the second web according to a welding pattern M3 including at least one welding zone at the channel on the pad.

公开(公告)号：US11191674B2

公开(公告)日：2021-12-07

申请号：US16492018

申请日：2018-01-26

Applicant: GDM S.p.A.

Inventor： Matteo Piantoni ,  Valerio Soli ,  Marco Rosani ,  Federico Toscani ,  Giuseppe Poli

IPC: A61F13/15 ,  A61F13/47 ,  A61F13/53 ,  B32B5/26 ,  B32B5/02 ,  B32B7/14

Abstract: A method for forming an absorbent pad including a first layer, a second layer and an absorbent material interposed between the first and the second layer and arranged according to a spreading pattern M1 having at least one channel which is free of absorbent material, includes a step of feeding a first web, intended to form the first layer of the pad; a step of feeding a second web, intended to form the second layer of the pad; a step of spreading the absorbent material on the first web according to the spreading pattern M1; a step of joining the first and second webs, a step of removing any absorbent material that may be present in the channel.