WO1990000213A1 - Materiau a base de lignocellulose et procede de fabrication d'un tel materiau - Google Patents

Materiau a base de lignocellulose et procede de fabrication d'un tel materiau Download PDF

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Publication number
WO1990000213A1
WO1990000213A1 PCT/SE1989/000357 SE8900357W WO9000213A1 WO 1990000213 A1 WO1990000213 A1 WO 1990000213A1 SE 8900357 W SE8900357 W SE 8900357W WO 9000213 A1 WO9000213 A1 WO 9000213A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulp
web
solids content
dry solids
accordance
Prior art date
Application number
PCT/SE1989/000357
Other languages
English (en)
Inventor
Jonas Arne Ingvar Lindahl
Original Assignee
Mo Och Domsjö Aktiebolag
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 Mo Och Domsjö Aktiebolag filed Critical Mo Och Domsjö Aktiebolag
Publication of WO1990000213A1 publication Critical patent/WO1990000213A1/fr

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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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical 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
    • D21H11/08—Mechanical or thermomechanical pulp

Definitions

  • FIG 1 is a schematic block view which illustrates a known process for the manufacturing of sheet structures from pulp suspensions. Reference to this known process is made below, under the heading "Standpoint of Techniques”.
  • the pulp sheet produced in accordance with the invention was substantially thinner than that of the sheet produced in accordance with the known technique.
  • the method of the invention also had a pronounced effect on pulp density and the increase, expressed in rela ⁇ tive percent, is about 35%. Considering that the pulp web was compressed in a dry state and at a speed of 58 m/minute, the result is surprisingly good.
  • Long-fibre spruce pulp obtained by fractionation in accordance with US-A-4,562,969 was produced in a groundwood pulp mill.
  • the fractionated pulp was placed in a container and transported to the CTMP-mill according to Example 1.
  • the pulp was slushed in a pulper (not shown in the Figure) in a conventional manner and then diluted with water to a pulp consistency of 1.2%.
  • the pulp suspension was passed through a conduit 2 (see Figure 2) to a headbox 3 and deposited on a wire .
  • the pulp suspension was dewatered on the wire to a pulp concentration (pc) of 26%.
  • the pulp web was then pressed in three stages.
  • the pulp web com ⁇ pressed in accordance with the invention was then further dried in a second drying section 11, to a dry solids content of 91.3%.
  • the pulp web was then reeled onto a reeling drum. Smaller and narrower rolls were produced from the jumbo-reel and delivered to consumers, e.g. converters.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Nonwoven Fabrics (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

La présente invention se rapporte à un matériau à base de lignocellulose ayant une structure stratifiée et une teneur en particules solides sèches supérieure à 80 %, de préférence à 85 %. Ledit matériau se caractérise par une densité comprise entre 400 et 575 kg/m3 mesurée selon le procédé standard SCAN-P7:75 et par une capacité de désintégration (calculée comme la quantité d'énergie électrique consommée pendant la désintégration du matériau dans un broyeur à marteaux) comprise entre 30 et 60 kWh/tonne de pulpe, de préférence entre 35 et 50 kWh/tonne de pulpe. En outre, après avoir été désintégré, la matériau présente une masse volumique en vrac de 15 à 23 cm3/g mesurée selon le procédé standard SCAN-C33:80 et une résistance de réticulation de 2 à 4,5 N. La présente invention se rapporte également à un procédé servant à produire une bande formée au mouillé en continu de matériau à base de lignocellulose et consistant à égoutter et à presser la bande jusqu'à ce qu'elle présente une teneur en particules solides sèches comprise entre environ 30 et 60 %, puis à sécher la bande. Ledit procédé se caractérise par la compression de la bande formée au mouillé ayant une teneur en particules solides sèches d'au moins 50 %, de préférence d'au moins 80 %, au moyen d'une pression linéaire produisant un accroissement de la masse volumique de plus de 10 %.
PCT/SE1989/000357 1988-06-29 1989-06-21 Materiau a base de lignocellulose et procede de fabrication d'un tel materiau WO1990000213A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8802450A SE461472B (sv) 1988-06-29 1988-06-29 Lignocellulosamaterial med arkstruktur foer torrdesintegrering och foerfarande foer framstaellning daerav
SE8802450-0 1988-06-29

Publications (1)

Publication Number Publication Date
WO1990000213A1 true WO1990000213A1 (fr) 1990-01-11

Family

ID=20372775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1989/000357 WO1990000213A1 (fr) 1988-06-29 1989-06-21 Materiau a base de lignocellulose et procede de fabrication d'un tel materiau

Country Status (2)

Country Link
SE (1) SE461472B (fr)
WO (1) WO1990000213A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2925533A1 (fr) * 2007-12-20 2009-06-26 Inst Francais Du Petrole Procede de conversion de solutions lignocellulosiques a haute teneur en matiere seche
US8871054B2 (en) 2010-07-22 2014-10-28 International Paper Company Process for preparing fluff pulp sheet with cationic dye and debonder surfactant
US8974636B2 (en) 2010-07-20 2015-03-10 International Paper Company Composition containing a multivalent cationic metal and amine-containing anti-static agent and methods of making and using
US9260820B2 (en) 2009-08-05 2016-02-16 International Paper Company Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality
US10260201B2 (en) 2009-08-05 2019-04-16 International Paper Company Process for applying composition containing a cationic trivalent metal and debonder and fluff pulp sheet made from same
US10415190B2 (en) 2009-08-05 2019-09-17 International Paper Company Dry fluff pulp sheet additive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047453A (en) * 1959-04-06 1962-07-31 Sprout Waldron & Co Inc Pulp handling system, method and apparatus
US3627630A (en) * 1969-12-04 1971-12-14 Beloit Corp Method of flash drying pulp
US4112587A (en) * 1976-02-09 1978-09-12 A. Ahlstrom Osakeyhtio Method and means for drying a fibre material containing cellulose

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047453A (en) * 1959-04-06 1962-07-31 Sprout Waldron & Co Inc Pulp handling system, method and apparatus
US3627630A (en) * 1969-12-04 1971-12-14 Beloit Corp Method of flash drying pulp
US4112587A (en) * 1976-02-09 1978-09-12 A. Ahlstrom Osakeyhtio Method and means for drying a fibre material containing cellulose

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2925533A1 (fr) * 2007-12-20 2009-06-26 Inst Francais Du Petrole Procede de conversion de solutions lignocellulosiques a haute teneur en matiere seche
WO2009095549A1 (fr) * 2007-12-20 2009-08-06 Ifp Procédé de conversion de solutions lignocellulosiques a haute teneur en matière sèche
US8623175B2 (en) 2007-12-20 2014-01-07 IFP Energies Nouvelles Process for the conversion of lignocellulosic solutions containing a high proportion of dry material
US8940131B2 (en) 2007-12-20 2015-01-27 IFP Energies Nouvelles Screw compression process for the conversion of lignocellulosic suspensions containing a high proportion of dry material
US9260820B2 (en) 2009-08-05 2016-02-16 International Paper Company Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality
US10260201B2 (en) 2009-08-05 2019-04-16 International Paper Company Process for applying composition containing a cationic trivalent metal and debonder and fluff pulp sheet made from same
US10415190B2 (en) 2009-08-05 2019-09-17 International Paper Company Dry fluff pulp sheet additive
US10513827B2 (en) 2009-08-05 2019-12-24 International Paper Company Composition containing a cationic trivalent metal and debonder and methods of making and using the same to enhance fluff pulp quality
US8974636B2 (en) 2010-07-20 2015-03-10 International Paper Company Composition containing a multivalent cationic metal and amine-containing anti-static agent and methods of making and using
US8871054B2 (en) 2010-07-22 2014-10-28 International Paper Company Process for preparing fluff pulp sheet with cationic dye and debonder surfactant

Also Published As

Publication number Publication date
SE8802450D0 (sv) 1988-06-29
SE8802450L (sv) 1989-12-30
SE461472B (sv) 1990-02-19

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