公开(公告)号：US11767638B2

公开(公告)日：2023-09-26

申请号：US17263634

申请日：2019-07-09

Applicant: VOITH PATENT GMBH

Inventor： Christoph Henninger ,  Michael Doermann

IPC: D21H19/54 ,  B05C1/08 ,  B05C5/00 ,  D21G9/00 ,  D21H17/28

CPC classification number: D21H19/54 ,  B05C1/0834 ,  B05C5/008 ,  D21G9/009 ,  D21H17/28

Abstract: A method and a device for the application of starch on a moving fiber web, especially on a packaging paper web such as a testliner or a corrugated medium web, include first applying starch to a first roll and/or a second roll and passing the fiber web through a treatment nip formed by the first roll and the second roll. At least one of the first or the second roll, preferably both rolls, have a hardness of 15 P&J (Pusey & Jones) or lower, preferably 5 P&J or lower and most preferably 1 P&J or lower. The starch is applied to the first roll and/or the second roll by a slot die and/or a slide die and then transferred to the fiber web in the treatment nip.