公开(公告)号：SE543371C2

公开(公告)日：2020-12-22

申请号：SE1950794

申请日：2019-06-26

Applicant: STORA ENSO OYJ

Inventor： PERSSON NORGREN DAN ,  WEDIN IRENE ,  VERTANEN KALLE ,  VAPA REIJO ,  LAMPAINEN SEPPO

IPC: D21H27/40 ,  B32B3/28 ,  B32B29/08 ,  B65D65/40

Abstract: The invention discloses a corrugated packaging material with a low weight and high strength properties, which material can be recycled with the office paper recycling stream. The corrugated packaging material of the invention exhibits good strength and stiffness properties, a low wash board tendency and provides a good printing surface.

公开(公告)号：SE543040C2

公开(公告)日：2020-09-29

申请号：SE1850799

申请日：2018-06-27

Applicant: STORA ENSO OYJ

Inventor： MÄÄTTÄNEN ARI-PEKKA ,  LAAKSO ATSO ,  PENG FRANK ,  LAMPAINEN SEPPO

IPC: B32B29/08 ,  B65D65/40 ,  D21H11/02 ,  D21H11/08 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/42 ,  D21H17/44 ,  D21H21/18 ,  D21H27/10 ,  D21H27/30 ,  D21H27/40

Abstract: The invention relates to a ply of a linerboard for corrugated board, which ply exhibits high strength properties and which enables the production of lightweight linerboards. The ply of the invention comprises 20 - 80 wt % CTMP from wood fibers and 80 - 20 wt% chemical pulp, calculated on the total fiber weight of said ply and strength additives chosen from the group of microfibrillated cellulose (MFC), anionic or cationic polymers and starch or combinations thereof. The ply exhibits a geometric SCT index of above 22 Nm/g and a density of below 680 kg/m3, preferably of below 650 kg/m3

公开(公告)号：SE543039C2

公开(公告)日：2020-09-29

申请号：SE1850798

申请日：2018-06-27

Applicant: STORA ENSO OYJ

Inventor： MÄÄTTÄNEN ARI-PEKKA ,  LAAKSO ATSO ,  PENG FRANK ,  LAMPAINEN SEPPO

IPC: B32B29/08 ,  B65D65/40 ,  D21H11/02 ,  D21H11/08 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/42 ,  D21H17/44 ,  D21H21/18 ,  D21H27/10 ,  D21H27/30 ,  D21H27/40

Abstract: The invention relates to a lightweight linerboard for corrugated board with good strength properties and which reduces problems with washboarding in the thereof produced corrugated board. The linerboard of the invention comprises at least one ply comprising 20 - 80 wt% CTMP from wood fibers and 20 - 80 wt% chemical pulp, all percentages calculated on the total fiber weight of said first ply, wherein the CTMP exhibits a bulk of at least 2.5 cm3/g.

公开(公告)号：CL2018002607A1

公开(公告)日：2018-11-09

申请号：CL2018002607

申请日：2018-09-12

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  LAMPAINEN SEPPO ,  KANKKUNEN JUKKA

IPC: B32B29/08 ,  D21H11/18 ,  D21H17/25 ,  D21H21/16 ,  D21H21/18 ,  D21H27/10 ,  D21H27/38 ,  D21H27/40

Abstract: UN CARTÓN CORRUGADO QUE COMPRENDE FIBRAS CELULÓSICAS, EN DONDE DICHO CARTÓN CORRUGADO TIENE AL MENOS UN ÍNDICE GEOMÉTRICO DE TENSIÓN EN EL RANGO DE 32 A 65 NM/G, UN ÍNDICE DE RESISTENCIA A LA FRACTURA EN EL RANGO DE 14 A 24 JM/KG Y UN ÍNDICE DE COMPRESIÓN DE ANILLO EN EL RANGO DE 5 A 10 NM/G, MEDIDOS A UNA HUMEDAD RELATIVA DE 85% RH; EN DONDE LAS FIBRAS CELULÓSICAS COMPRENDEN UNA MEZCLA DE FIBRAS MENOS REFINADAS QUE TIENEN UN VALOR SCHOPPER-RIEGLER (SR) EN EL RANGO DE 15 A 28 Y FIBRAS DE CELULOSA MICROFIBRILADA, EN DONDE LA MEZCLA COMPRENDE DICHA CELULOSA MICROFIBRILADA EN UN RANGO DE 1% A 5% EN PESO DEL CONTENIDO SECO DE FIBRAS CELULÓSICAS.