公开(公告)号：US20190291938A1

公开(公告)日：2019-09-26

申请号：US16316729

申请日：2017-07-03

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen ,  Seppo Lampainen ,  Simo Siitonen ,  Marianne Andersson

IPC: B65D81/26 ,  A23B7/157 ,  A23L3/358 ,  B01J20/32 ,  B01J20/28 ,  B01J20/30 ,  B01J20/02 ,  B65D65/42 ,  D21H21/22 ,  D21H19/02 ,  C08L1/02

Abstract: The present invention relates to a material suitable for use in packages comprising nano-sized cellulose and an ethylene scavenging or ethylene absorbing agent. The invention also relates to methods for manufacturing such material, which may be paper, label, paperboard, plastic or film products.

公开(公告)号：US20190047273A1

公开(公告)日：2019-02-14

申请号：US16087281

申请日：2017-03-21

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Seppo Lampainen ,  Jukka Kankkunen

IPC: B32B29/08 ,  D21H11/18 ,  D21H17/16 ,  D21H17/17 ,  D21H17/25 ,  D21H21/16 ,  D21H21/18 ,  D21H27/10 ,  D21H27/38 ,  D21H27/40

Abstract: A corrugated fiberboard comprising cellulosic fibers, wherein said corrugated fiberboard has at least one of a geometrical tensile index in the range of from 32 to 65 Nm/g, a fracture toughness index in the range of from 4 to 24 Jm/kg, and a ring crush index in the range of from 5 to 10 Nm/g5 measured at relative humidity of 85% RH; wherein the cellulosic fibers comprises a mixture of less refined fibers having a Schopper-Riegler (SR) value in the range of 15 to 28 and microfibrillated cellulose fibers, wherein mixture comprises said microfibrillated cellulose in a range of from 1% to 5% by weight of the dry content of the cellulosic fibers.

公开(公告)号：US20230019391A1

公开(公告)日：2023-01-19

申请号：US17757602

申请日：2020-12-11

Applicant: Stora Enso OYJ

Inventor： Seppo Lampainen ,  Janne Myllykangas ,  Petri Paakkanen ,  Atso Laakso ,  Kaj Backfolk

IPC: D21F11/12 ,  D21F1/02 ,  D21F11/04 ,  D21F3/02 ,  B32B29/00 ,  B32B29/08 ,  B32B3/28 ,  B32B7/12

Abstract: The invention relates to a method to produce a linerboard exhibiting a high bending resistance and a high compression strength, which in turn provides high resistance to interflute buckling and sagging in a thereof formed corrugated board. This is achieved by the inventive combination of an optimized fiber refining level of the furnish in each layer of the linerboard, the separate formation of the top layer and the use of a multi-layer headbox to form the two-layered ply. In addition, the linerboard made according to the invention provides good printing properties in a thereof produced corrugated board, especially in flexographic printing, without the fluting structure being negatively affected.

公开(公告)号：US20210221114A1

公开(公告)日：2021-07-22

申请号：US17256060

申请日：2019-06-25

Applicant: Stora Enso OYJ

Inventor： Seppo Lampainen ,  Frank Peng ,  Atso Laakso ,  Ari-Pekka Määttänen

IPC: B32B29/00 ,  B32B7/12 ,  B32B29/08 ,  B65D65/40 ,  D21H11/02 ,  D21H11/18 ,  D21H11/10 ,  D21H21/18 ,  D21H17/28 ,  D21H17/45 ,  D21H17/68 ,  D21H17/00 ,  D21H27/40 ,  D21H27/10

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 starchor 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：US20210268783A1

公开(公告)日：2021-09-02

申请号：US17256058

申请日：2019-06-25

Applicant: Stora Enso OYJ

Inventor： Seppo Lampainen ,  Frank Peng ,  Atso Laakso ,  Ari-Pekka Määttänen

IPC: B32B29/08 ,  D21H11/02 ,  B32B29/00 ,  B32B7/05 ,  D21H27/30 ,  D21H11/08 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/42 ,  D21H17/44 ,  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：US10787770B2

公开(公告)日：2020-09-29

申请号：US16346002

申请日：2017-10-31

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Seppo Lampainen ,  Kaj Backfolk ,  Esa Saukkonen ,  Jukka Kankkunen ,  Christian Aulin ,  Astrid Odeberg Glasenapp

IPC: D21H27/40 ,  C09J5/06 ,  C09J101/02 ,  C09J103/02

Abstract: The present invention relates to a corrugated board comprising an adhesive arranged to attach a fluted corrugated medium to a liner wherein the adhesive comprises starch and microfibrillated cellulose. The invention also relates to a method to produce said corrugated board.

公开(公告)号：US12234071B2

公开(公告)日：2025-02-25

申请号：US17622363

申请日：2020-06-25

Applicant: Stora Enso OYJ

Inventor： Irene Wedin ,  Dan Persson Norgren ,  Reijo Vapa ,  Seppo Lampainen ,  Kalle Vertanen

IPC: B32B29/08 ,  B32B7/12 ,  B32B29/00 ,  B65D5/64 ,  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：US11926128B2

公开(公告)日：2024-03-12

申请号：US17256058

申请日：2019-06-25

Applicant: Stora Enso OYJ

Inventor： Seppo Lampainen ,  Frank Peng ,  Atso Laakso ,  Ari-Pekka Määttänen

IPC: B32B29/08 ,  B32B7/05 ,  B32B29/00 ,  D21H11/02 ,  D21H11/04 ,  D21H11/08 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/42 ,  D21H17/44 ,  D21H27/30 ,  D21H27/40

CPC classification number: B32B29/08 ,  B32B7/05 ,  B32B29/005 ,  D21H1/02 ,  D21H11/02 ,  D21H11/04 ,  D21H11/08 ,  D21H11/10 ,  D21H11/18 ,  D21H17/28 ,  D21H17/42 ,  D21H17/44 ,  D21H27/40 ,  B32B2250/26 ,  B32B2307/546 ,  B32B2307/718 ,  B32B2307/72

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：US20220242635A1

公开(公告)日：2022-08-04

申请号：US17622363

申请日：2020-06-25

Applicant: Stora Enso OYJ

Inventor： Irene Wedin ,  Dan Persson Norgren ,  Reijo Vapa ,  Seppo Lampainen ,  Kalle Vertanen

IPC: B65D65/40 ,  B65D5/64 ,  B32B29/00 ,  B32B29/08 ,  B32B7/12

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：US12234605B2

公开(公告)日：2025-02-25

申请号：US17757602

申请日：2020-12-11

Applicant: Stora Enso OYJ

Inventor： Seppo Lampainen ,  Janne Myllykangas ,  Petri Paakkanen ,  Atso Laakso ,  Kaj Backfolk

IPC: D21F11/12 ,  B32B3/28 ,  B32B7/12 ,  B32B29/00 ,  B32B29/08 ,  D21F1/02 ,  D21F3/02 ,  D21F11/04

Abstract: The invention relates to a method to produce a linerboard exhibiting a high bending resistance and a high compression strength, which in turn provides high resistance to interflute buckling and sagging in a thereof formed corrugated board. This is achieved by the inventive combination of an optimized fiber refining level of the furnish in each layer of the linerboard, the separate formation of the top layer and the use of a multi-layer headbox to form the two-layered ply. In addition, the linerboard made according to the invention provides good printing properties in a thereof produced corrugated board, especially in flexographic printing, without the fluting structure being negatively affected.