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SE2330311A1 - A method for manufacturing a multi-ply papperboard - Google Patents

A method for manufacturing a multi-ply papperboard

Info

Publication number
SE2330311A1
SE2330311A1 SE2330311A SE2330311A SE2330311A1 SE 2330311 A1 SE2330311 A1 SE 2330311A1 SE 2330311 A SE2330311 A SE 2330311A SE 2330311 A SE2330311 A SE 2330311A SE 2330311 A1 SE2330311 A1 SE 2330311A1
Authority
SE
Sweden
Prior art keywords
ply
furnish
anyone
web
broke
Prior art date
Application number
SE2330311A
Other languages
Swedish (sv)
Other versions
SE546839C2 (en
Inventor
Anders Moberg
Kaj Backfolk
Original Assignee
Stora Enso Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stora Enso Oyj filed Critical Stora Enso Oyj
Priority to SE2330311A priority Critical patent/SE546839C2/en
Priority to PCT/IB2024/056456 priority patent/WO2025008746A1/en
Publication of SE2330311A1 publication Critical patent/SE2330311A1/en
Publication of SE546839C2 publication Critical patent/SE546839C2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/08—Mechanical or thermomechanical pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/18—Highly hydrated, swollen or fibrillatable fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/38—Multi-ply at least one of the sheets having a fibrous composition differing from that of other sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/26—All layers being made of paper or paperboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/002—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines by using a foamed suspension
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/10—Mixtures of chemical and mechanical pulp

Landscapes

  • Paper (AREA)

Abstract

The invention discloses a method for manufacturing a multiply paperboard comprising the steps of:- forming a web comprising at least a top ply, a back ply, and a middle ply arranged between the top ply and the back ply, wherein the middle ply is formed from a first furnish comprising at least 50 wt% of a HT-CTMP and 0.1 - 10 wt% of glue pulp based on the total dry weight of said first furnish, wherein said glue pulp has a Schopper Riegler (SR) value in the range of 55- 84 as measured according to standard ISO 5267-1 and a mass fraction of fines of less than 25% as measured according to standard ISO 10376:2011,- subjecting the thereof formed three-ply web to pressing in at least one shoe press, and- drying the web.It has been found that the combination of using the said furnish mixture including HT-CTMP and glue pulp with an SR value within said range enables efficient dewatering by use of a shoe press and gives rise to a paperboard with high bulk but maintained or improved strength properties.

Claims (13)

Claims
1. A method for manufacturing a multiply paperboard comprising the steps of: - forming a web comprising at least a top ply, a back ply, and a middle ply arranged between the top ply and the back ply, wherein the middle ply is formed from a first furnish comprising at least 50 wt% of a HT-CTMP and 0.1 - 10 wt% of glue pulp based on the total dry weight of said first furnish, wherein said glue pulp has a Schopper Riegler (SR) value in the range of 55 - 84 as measured according to standard ISO 5267-1 and a mass fraction of fines of less than 25% as measured according to standard ISO 1037612011, - subjecting the thereof formed three-ply web to pressing in at least one shoe press, and - drying the web.
2. . A method according to claim 1, wherein the first furnish further comprises a strength additive selected from the group consisting of cationic starch, anionic polymers, microfibrillated cellulose, polyvinylamine, chitosan, primary and secondary amines, polyethylene amines and modified polyacrylamides and combinations thereof.
3. _ A method according to anyone of the preceding claims, wherein the first furnish further comprises internal sizing agents, preferably chosen from the group of alkyl ketene dimer (AKD), alkyl succinic anhydride (ASA) and rosin resin, or a combination thereof.
4. _ A method according to claim 3, wherein the first furnish is formed by adding a pre-mixture of glue pulp and internal sizing agents to a cellulose containing furnish comprising HT-CTMP.
5. . A method according to any one of the preceding claims, wherein the first furnish is formed by adding a pre-mixture of glue pulp and CMC having adegree of substitution of less than 0.4 to a cellulose containing furnish comprising HT-CTMP.
6. A method according to anyone of the preceding claims, wherein the SR value of the glue pulp is between 55 - 60, as measured according to standard ISO 5267-
7. A method according to anyone of the preceding claims, wherein the glue pulp is fibrillated broke.
8. A method according to claim 6, wherein the broke at least partly comprises surface sized broke.
9. A method according to anyone of claims 6 and 7, wherein the fibrillated broke is manufactured by fibrillating broke in the presence of MFC, CMC and/or starch.
10. A method according to claim 8, wherein the fibrillated broke is manufactured by fibrillating broke in the presence of CMC, wherein the CMC has a degree of substitution of less than 0.
11. A method according to anyone of the preceding claims, wherein the top ply is formed from a second furnish comprising 80 - 100 wt% of hardwood kraft pulp, preferably bleached hardwood kraft pulp, based on the total dry weight of said second furnish.
12. A method according to claim 11, wherein the second furnish further comprises 0.1 - 10 wt% of glue pulp having a Schopper Riegler (SR) value in the range of 55 - 84 as measured according to standard ISO 5267-based on the total dry weight of said second furnish.
13. A method according to anyone of the preceding claims, wherein the back ply is formed from a third furnish comprising 80 - 100 wt% of unbleached kraft pulp from hardwood based on the total dry weight of said third furnish.14.A method according to anyone of the preceding claims, wherein at least one of the top, middle and back ply is formed by foam forming. 15.A method according to anyone of the preceding claims, wherein web comprising the top-ply, the middle-ply, and the back-ply is formed by use of a multi-layer headbox and the method further comprises applying a central layer in-between the top ply and the middle ply or in-between the middle ply and the back ply using the multilayer headbox, and wherein the central layer is formed from an aqueous suspension comprising 80 wt% of glue pulp having an SR in the range of 55 - 84, as measured according to standard ISO 5267-1 and based on the total dry weight of the aqueous suspension. 16.A method according to anyone of the preceding claims, wherein the at least one shoe press forms a shoe press nip and wherein the temperature of the web in the shoe press nip is in the range of 20 - 75 °C, preferably in the range of 35 - 75 °C and most preferably in the range of 40 - 75 °C. 17.A method according to anyone of the preceding claims, further comprising the step of reeling the web on a reel spool to form a paperboard roll, wherein the paperboard roll is loaded with two rider rolls during the reeling.
SE2330311A 2023-07-05 2023-07-05 A method for manufacturing a multi-ply papperboard SE546839C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2330311A SE546839C2 (en) 2023-07-05 2023-07-05 A method for manufacturing a multi-ply papperboard
PCT/IB2024/056456 WO2025008746A1 (en) 2023-07-05 2024-07-02 A method for manufacturing a multi-ply paperboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2330311A SE546839C2 (en) 2023-07-05 2023-07-05 A method for manufacturing a multi-ply papperboard

Publications (2)

Publication Number Publication Date
SE2330311A1 true SE2330311A1 (en) 2025-01-06
SE546839C2 SE546839C2 (en) 2025-02-25

Family

ID=94171401

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2330311A SE546839C2 (en) 2023-07-05 2023-07-05 A method for manufacturing a multi-ply papperboard

Country Status (2)

Country Link
SE (1) SE546839C2 (en)
WO (1) WO2025008746A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240279874A1 (en) * 2021-06-18 2024-08-22 Billerud Aktiebolag (Publ) Product of Paperboard Having Improved Printing Properties

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008076056A1 (en) * 2006-12-18 2008-06-26 Akzo Nobel N.V. Method of producing a paper product
WO2012039668A1 (en) * 2010-09-22 2012-03-29 Stora Enso Oyj A paper or paperboard product and a process for production of a paper or paperboard product
WO2015087293A1 (en) * 2013-12-13 2015-06-18 Stora Enso Oyj Multiply paperboard
WO2021124040A1 (en) * 2019-12-19 2021-06-24 Stora Enso Oyj A light weight linerboard for corrugated board
EP4105381A1 (en) * 2021-06-18 2022-12-21 Billerud Aktiebolag (publ) Product of paperboard having improved printing properties
WO2023111804A1 (en) * 2021-12-15 2023-06-22 Stora Enso Oyj Strength enhancement agent for paper and paperboard

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008076056A1 (en) * 2006-12-18 2008-06-26 Akzo Nobel N.V. Method of producing a paper product
WO2012039668A1 (en) * 2010-09-22 2012-03-29 Stora Enso Oyj A paper or paperboard product and a process for production of a paper or paperboard product
WO2015087293A1 (en) * 2013-12-13 2015-06-18 Stora Enso Oyj Multiply paperboard
WO2021124040A1 (en) * 2019-12-19 2021-06-24 Stora Enso Oyj A light weight linerboard for corrugated board
EP4105381A1 (en) * 2021-06-18 2022-12-21 Billerud Aktiebolag (publ) Product of paperboard having improved printing properties
WO2023111804A1 (en) * 2021-12-15 2023-06-22 Stora Enso Oyj Strength enhancement agent for paper and paperboard

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240279874A1 (en) * 2021-06-18 2024-08-22 Billerud Aktiebolag (Publ) Product of Paperboard Having Improved Printing Properties

Also Published As

Publication number Publication date
WO2025008746A1 (en) 2025-01-09
SE546839C2 (en) 2025-02-25

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