公开(公告)号：US11441272B2

公开(公告)日：2022-09-13

申请号：US16643060

申请日：2018-08-30

Applicant: Stora Enso OYJ

Inventor： Tuomo Sippus

IPC: D21H11/18 ,  B32B7/12 ,  B32B29/00 ,  B32B29/08 ,  D21F11/12 ,  C08L1/02 ,  D21D1/20

Abstract: The present invention relates to a method for producing a paperboard comprising the steps of; providing a furnish comprising cellulosic fibers, applying the furnish on at least one wire to form a web, dewatering the web on said at least one wire by subjecting the web to a pressure above 150 kPa without the use of a press roll nip and thereafter pressing the dewatered web to form a paperboard. The invention also relates to a paperboard and a corrugated board.

公开(公告)号：US20200332468A1

公开(公告)日：2020-10-22

申请号：US16643060

申请日：2018-08-30

Applicant: Stora Enso OYJ

Inventor： Tuomo Sippus

IPC: D21H11/18 ,  C08L1/02 ,  D21F11/12 ,  B32B29/00 ,  B32B29/08 ,  B32B7/12 ,  D21D1/20

Abstract: The present invention relates to a method for producing a paperboard comprising the steps of; providing a furnish comprising cellulosic fibers, applying the furnish on at least one wire to form a web, dewatering the web on said at least one wire by subjecting the web to a pressure above 150 kPa without the use of a press roll nip and thereafter pressing the dewatered web to form a paperboard. The invention also relates to a paperboard and a corrugated board.

公开(公告)号：US20240240403A1

公开(公告)日：2024-07-18

申请号：US18559419

申请日：2022-05-13

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Kaj Backfolk ,  Jukka Kankkunen ,  Tuomo Sippus

IPC: D21H11/06 ,  D21C9/02 ,  D21H17/20 ,  D21H21/10 ,  D21H21/16 ,  D21H27/40

CPC classification number: D21H11/06 ,  D21C9/02 ,  D21H17/20 ,  D21H21/10 ,  D21H21/16 ,  D21H27/40

Abstract: The present invention relates to a fluting or liner for corrugated board comprising a neutral sulfite semi chemical (NSSC) pulp, wherein said NSSC pulp has an ash content of less than 1.8 wt %, as determined according to standard ISO 1762:2019. The invention further relates to a corrugated board comprising the fluting and/or liner.

公开(公告)号：US20220372706A1

公开(公告)日：2022-11-24

申请号：US17817141

申请日：2022-08-03

Applicant: Stora Enso OYJ

Inventor： Tuomo Sippus

IPC: D21H11/18 ,  B32B7/12 ,  B32B29/00 ,  B32B29/08 ,  C08L1/02 ,  D21D1/20 ,  D21F11/12

Abstract: A method for producing a paperboard comprising the steps of; providing a furnish comprising cellulosic fibers, applying the furnish on at least one wire to form a web, dewatering the web on said at least one wire by subjecting the web to a pressure above 150 kPa without the use of a press roll nip and thereafter pressing the dewatered web to form a paperboard. Also a paperboard and a corrugated board produced by such a process.