EP0722011B1 - Verfahren zur Herstellung von Tissuepapier, Zeitungsdruckpapier, Papier oder Karton - Google Patents

Verfahren zur Herstellung von Tissuepapier, Zeitungsdruckpapier, Papier oder Karton Download PDF

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Publication number
EP0722011B1
EP0722011B1 EP95309388A EP95309388A EP0722011B1 EP 0722011 B1 EP0722011 B1 EP 0722011B1 EP 95309388 A EP95309388 A EP 95309388A EP 95309388 A EP95309388 A EP 95309388A EP 0722011 B1 EP0722011 B1 EP 0722011B1
Authority
EP
European Patent Office
Prior art keywords
furnish
lignin
weight
anionic polymer
paper
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP95309388A
Other languages
English (en)
French (fr)
Other versions
EP0722011A1 (de
Inventor
David L. Elliot
Ronald J. Falcione
Kenneth F. Henderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Calgon Corp
Original Assignee
Calgon Corp
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 Calgon Corp filed Critical Calgon Corp
Publication of EP0722011A1 publication Critical patent/EP0722011A1/de
Application granted granted Critical
Publication of EP0722011B1 publication Critical patent/EP0722011B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/23—Lignins
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/42—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
    • 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
    • D21H27/002—Tissue paper; Absorbent paper

Definitions

  • This invention relates to the use, by addition to an aqueous cellulosic furnish, of an anionic polymer and a modified lignin in a method for making tissue, newsprint, paper or paperboard giving improved properties in the areas of drainage, retention and formation, which enhance the pressing and drying operations of a paper machine.
  • US-A-4,347,100 discloses a method of producing paper having improved bursting strength from mechanical or thermomechanical pulp comprising defibering wet wood by mechanical attrition to form mechanical or thermomechanical pulp, processing the pulp to form a furnish, incorporating into the pulp at an elevated temperature and pressure an anionic organic polyelectrolyte or polymer to improve bursting strength, and adding to the furnish a cationic organic polyelectrolyte or polymer.
  • the patent states that the anionic organic polyelectrolyte or polymer causes dispersion of lignin and retards deposition of lignin to improve the bursting strength.
  • TAPPI Papermakers Conference Proceedings, Book 1, pp. 115-186, (Atlanta, Georgia - April 18-21, 1993) discloses microparticle systems such as for example, a system having a cationic starch or cationic polyacrylamide or anionic polymers and an anionic silica colloid or bentonite or alumina sol for improving dewatering, retention, formation and dry strength.
  • the term "furnish” refers to all tissue, newsprint, paper and paperboard furnishes based on, for example, but not limited to, mechanical pulp, semi-bleached kraft pulp, recycled pulp, unbleached kraft pulp and/or unbleached sulfite pulp.
  • the additives used in the method of the instant invention may be added to the paper furnish as hereinbefore described at any convenient point (respectively prior to and after a shear stage) prior to sheet formation. It will be appreciated by those skilled in the art that the exact points of addition are mill specific.
  • the additives are added to thin diluted aqueous cellulosic paper furnish. Any suitable method of addition known in the art can be utilized. A preferred method of addition includes adequate dilution to accomplish dispersion of the additives throughout the furnish.
  • the additives used in the method of the instant invention do not contain a solid or particulate component in comparison to currently available microparticle technology employing such as for example silica, bentonite or alum.
  • the method of this invention therefore, provides a more economical process of improving drainage, retention, or formation, and combinations thereof, in the pressing and drying of tissue, newsprint, paper or paperboard without insoluble residue or solids buildup.
  • REAX-905 is a modified sulfonated kraft lignin polymer commercially available from Westvaco, Chemical Division (Charleston Heights, South Carolina) and chemically is a sodium salt of lignosulfonic acid having a weight average molecular weight of about 30,000 and a degree of sulfonation of about 0.8 moles of sulfonic acid groups per 1000 unit weight of the lignin.
  • Example 3 shows that Example 3, embodying the instant invention including use of Anionic Polymer B and the modified lignin, Dynasperse A, when added to the furnish resulted in a paper product having a drainage time of about 37 seconds, a formation index of about 25.4, and a % sheet ash (retention) of about 12.4. From the data of Table I, it will be appreciated by those skilled in the art that the parameters of drainage and retention are greatly improved when the anionic polymer and modified lignin of the instant invention are added to the furnish in comparison to the results obtained when no additives are added to the furnish.
  • Table I shows that the formation index is relatively unchanged when the composition of the instant invention of Example 3 is added to the furnish when compared to the furnish of Example 1, Table I, having no anionic polymer and modified lignin. It will be appreciated by those skilled in the art that, Table I shows that for Example 2, adding anionic polymer alone to the furnish negatively impacted the formation index while increasing the rate of drainage and % sheet ash retention. It is important to note that, in contrast to the addition of anionic polymer alone shown in Example 2, the composition of the instant invention greatly increased the rate of drainage and % sheet ash retention, and did not generally adversely effect formation, a result not heretofore achieved by those skilled in the art.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Claims (9)

  1. Verfahren zur Herstellung von Papier, Pappe, Tuch, Zeitungspapier oder dergleichen, umfassend das Unterwerfen einer wässrigen Cellulose-Beschickung einer oder mehr Scherstufen, Zugeben eines ersten Additivs, welches ein hochmolekulares Polymer umfasst, zur Beschickung vor zumindest einer der Scherstufen, Zugeben eines zweiten Additivs zur Beschickung nach der Zugabe des Polymers und nach zumindest einer Scherstufe, Entwässern der Beschickung, so dass man eine Bahn erhält, und Trocknen der Bahn, wobei
    das hochmolekulare Polymer ein anionisches Polymer umfasst und das zweite Additiv ein modifiziertes Lignin umfasst,
    das Gewichtsverhältnis des zugegebenen anionischen Polymers zum modifizierten Lignin auf aktiver Basis von 1:10 bis 10:1 reicht, und
    das anionische Polymer und das modifizierte Lignin jeweils in einer Menge von mindestens 0,005 Gew.% (0,1 Pfund pro Tonne), bezogen auf das Trockengewicht der Feststoffe der Beschickung, zugegeben werden.
  2. Verfahren nach Anspruch 1, wobei dann die Bahn, die beim Entwässern der Beschickung erhalten wird, gepresst und dann getrocknet wird.
  3. Verfahren nach Anspruch 1 oder 2, wobei nach der Zugabe des Polymers die Scherstufe eine Scherung mit einer Schergeschwindigkeit von mindestens 1000 Umdrehungen pro Minute umfasst.
  4. Verfahren nach einem der vorhergehenden Ansprüche, wobei das modifizierte Lignin zudem ausgewählt ist aus der Gruppe, bestehend aus sulfoniertem Lignin, carboxyliertem Lignin, oxidiertem Lignin und Salzen davon.
  5. Verfahren nach Anspruch 4, wobei das modifizierte Lignin zudem ein sulfoniertes Lignin ist, dessen Sulfonierungsgrad von etwa 0,1 bis 10 Mol Sulfonsäuregruppen pro 1000 Gewichtsteile Lignin reicht.
  6. Verfahren nach Anspruch 4 oder 5, wobei das modifizierte Lignin ein sulfoniertes Lignin mit einem Molekulargewichtsgewichtsmittel größer als etwa 2500 ist.
  7. Verfahren nach einem der vorhergehenden Ansprüche, wobei sich das anionische Polymer von mindestens einem anionischen Polymer ableitet, ausgewählt aus der Gruppe, bestehend aus 2-Acrylamido-2-methylpropansulfonsäure, Acrylsäure, Methacrylsäure, Maleinsäure, Fumarsäure, Styrolsulfonsäure, Vinylsulfonsäure, Vinylmilchsäure, Allylsulfonsäure, Erdalkalimetallsalzen der Carbonsäuren und Kombinationen davon.
  8. Verfahren nach einem der vorhergehenden Ansprüche, wobei das anionische Polymer ein Copolymer ist, das aus mindestens einem anionischen Polymer und mindestens einem nichtionischen Monomer abgeleitet ist, wobei das Gewichts-Verhältnis von anionischem Monomer zu nichtionischem Monomer von etwa 99:1 bis 1:99 reicht.
  9. Verfahren nach Anspruch 8, wobei das nicht-ionische Monomer ausgewählt ist aus Acrylamid-, Methacrylamid-, Diacetonacrylamid- und N,N-Dimethylacrylamid-Monomeren.
EP95309388A 1995-01-10 1995-12-22 Verfahren zur Herstellung von Tissuepapier, Zeitungsdruckpapier, Papier oder Karton Expired - Lifetime EP0722011B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US370941 1989-06-23
US37092495A 1995-01-10 1995-01-10
US37094195A 1995-01-10 1995-01-10
US370924 1995-01-10

Publications (2)

Publication Number Publication Date
EP0722011A1 EP0722011A1 (de) 1996-07-17
EP0722011B1 true EP0722011B1 (de) 2000-02-09

Family

ID=27005169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95309388A Expired - Lifetime EP0722011B1 (de) 1995-01-10 1995-12-22 Verfahren zur Herstellung von Tissuepapier, Zeitungsdruckpapier, Papier oder Karton

Country Status (9)

Country Link
EP (1) EP0722011B1 (de)
JP (1) JPH08246387A (de)
KR (1) KR960029536A (de)
AU (1) AU691375B2 (de)
CA (1) CA2166838A1 (de)
DE (1) DE69515016T2 (de)
DK (1) DK0722011T3 (de)
ES (1) ES2145226T3 (de)
NZ (1) NZ280717A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1825057T3 (pl) * 2004-12-14 2015-08-31 Solenis Tech Cayman Lp Środki pomocnicze w retencji i odwodnieniu
AU2017259858B2 (en) 2016-05-03 2021-07-22 Solenis Technologies, L.P. Biopolymer sizing agents
WO2024105160A1 (en) * 2022-11-17 2024-05-23 Sca Forest Products Ab Production of hydrophobic paper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706629A (en) * 1970-07-23 1972-12-19 Dow Chemical Co Drainage improvement in paper pulp suspensions containing lignin residues
US4347100A (en) * 1981-05-21 1982-08-31 The Chemithon Corporation Strength of paper from mechanical or thermomechanical pulp
GB8920456D0 (en) * 1989-09-11 1989-10-25 Albright & Wilson Active sizing compositions

Also Published As

Publication number Publication date
NZ280717A (en) 1996-05-28
ES2145226T3 (es) 2000-07-01
DE69515016T2 (de) 2000-09-14
AU4091896A (en) 1996-07-18
JPH08246387A (ja) 1996-09-24
CA2166838A1 (en) 1996-07-11
DE69515016D1 (de) 2000-03-16
DK0722011T3 (da) 2000-07-24
EP0722011A1 (de) 1996-07-17
AU691375B2 (en) 1998-05-14
KR960029536A (ko) 1996-08-17

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