US 12,006,633 B2
Method for coating a fibrous web, and a surface coated fibrous web
Kaj Backfolk, Lappeenranta (FI); Isto Heiskanen, Imatra (FI); and Otto Nylén, Helsinki (FI)
Assigned to Stora Enso OYJ, Helsinki (FI)
Appl. No. 17/757,257
Filed by Stora Enso OYJ, Helsinki (FI)
PCT Filed Dec. 22, 2020, PCT No. PCT/IB2020/062323
§ 371(c)(1), (2) Date Jun. 13, 2022,
PCT Pub. No. WO2021/130667, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 1951552-7 (SE), filed on Dec. 23, 2019.
Prior Publication US 2023/0002976 A1, Jan. 5, 2023
Int. Cl. D21H 23/24 (2006.01); D06B 1/10 (2006.01); D06M 13/02 (2006.01); D06M 13/10 (2006.01); D06M 13/188 (2006.01); D06M 15/17 (2006.01); D06M 15/227 (2006.01); D06M 101/06 (2006.01); D21F 11/00 (2006.01); D21H 19/16 (2006.01); D21H 19/28 (2006.01); D21H 19/66 (2006.01); D21H 27/02 (2006.01)
CPC D21H 23/24 (2013.01) [D06B 1/10 (2013.01); D06M 13/02 (2013.01); D06M 13/10 (2013.01); D06M 13/188 (2013.01); D06M 15/17 (2013.01); D06M 15/227 (2013.01); D21F 11/006 (2013.01); D21H 19/16 (2013.01); D21H 19/28 (2013.01); D21H 19/66 (2013.01); D21H 27/02 (2013.01); D06M 2101/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for coating a fibrous web, said method comprising the steps of:
a. providing a textured substrate having at least one textured surface region,
b. applying a coating agent to the textured surface region of said textured substrate, so as to provide a coated, textured surface region of said textured substrate;
c. applying a fibre furnish onto the coated, textured surface region of said textured substrate; and dewatering said fibre furnish to provide a wet fibrous web, or,
d. applying a wet fibrous web onto the coated, textured surface region of said textured substrate;
e. drying said wet fibrous web from step c. or step d. such that at least a portion of said coating agent is transferred to said fibrous web, and
f. removing the fibrous web from said textured surface region after step e., thereby providing a coated fibrous web.