GB1402516A - Process for producing kraft paper laminate - Google Patents

Process for producing kraft paper laminate

Info

Publication number
GB1402516A
GB1402516A GB416474A GB416474A GB1402516A GB 1402516 A GB1402516 A GB 1402516A GB 416474 A GB416474 A GB 416474A GB 416474 A GB416474 A GB 416474A GB 1402516 A GB1402516 A GB 1402516A
Authority
GB
United Kingdom
Prior art keywords
screen
slurry
fraction
digested
base stock
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
Application number
GB416474A
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.)
Bird Machine Co Inc
Original Assignee
Bird Machine Co Inc
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 Bird Machine Co Inc filed Critical Bird Machine Co Inc
Publication of GB1402516A publication Critical patent/GB1402516A/en
Expired legal-status Critical Current

Links

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
    • 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
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate pulp

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

1402516 Paper-making BIRD MACHINE CO lNC 29 Jan 1974 [7 March 1973] 04164/74 Heading D2A A process for producing a kraft paper laminate of top and base stock layers from kraft fibre slurry which has been digested to a yield of at least 54%, comprises the steps of subjecting the digested slurry to screening between a screen and a member imparting high frequency and instense mechanical pulsation to the slurry to separate it into a first fraction passing through the screen and a second fraction not passing through the screen while preventing the screen from blending, the first fraction having between 10% and 30%, preferably 20%, of the total fibre content of the unscreened slurry and consisting almost entirely of short fibres, and the second fraction containing the remaining, mainly long fibres of the slurry, and utilising the first and second fractions as the top and base stock layers of the laminate. As shown, fibre from a digester 10 is diluted in a blow tank 12, prerefined at 14 and pumped to a fine screening machine 18. The machine 18 preferably comprises a coaxial screen and rotor, bumps on the rotor surface imparting high frequency and intense pulses to the slurry to prevent the screen blinding. The first fraction is fed via a washer 20 to be utilised as the top stock layer. The second fraction is fed to a refiner 22 and a coarse screen 24. Rejects from screen 24 are fed back to the refiner 22 while the accepted portion of the second fraction is fed via washer 26 to be utilised as the base stock layer. In an alternatinve embodiment (Fig 3, not shown) all the fibres of the digested slurry are washed and refined prior to fine screening.
GB416474A 1973-03-07 1974-01-29 Process for producing kraft paper laminate Expired GB1402516A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33882673A 1973-03-07 1973-03-07

Publications (1)

Publication Number Publication Date
GB1402516A true GB1402516A (en) 1975-08-13

Family

ID=23326319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB416474A Expired GB1402516A (en) 1973-03-07 1974-01-29 Process for producing kraft paper laminate

Country Status (6)

Country Link
US (1) US3791917A (en)
JP (1) JPS49124309A (en)
BR (1) BR7401702D0 (en)
CA (1) CA993700A (en)
FR (1) FR2220622B1 (en)
GB (1) GB1402516A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153717A2 (en) * 1984-02-22 1985-09-04 Mo Och Domsjö Aktiebolag A method for producing improved high-yield pulps

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562310A (en) * 1978-10-20 1980-05-10 Hiromi Ogasawara Direct-acting type displacement detector
DE2908660C2 (en) * 1979-03-06 1984-02-09 J.M. Voith Gmbh, 7920 Heidenheim Process and system for the recovery of a pulp suspension from mixed waste paper
CH649112A5 (en) * 1980-10-03 1985-04-30 Escher Wyss Gmbh METHOD FOR FRACTIONING FIBER FIBER RECOVERED FROM WASTE PAPER, AND PLANT FOR CARRYING OUT THE METHOD.
SE431571C (en) * 1982-07-02 1985-09-09 Nils Anders Lennart Wikdahl SET FOR CLEANING A FIBER SUSPENSION
SE435941B (en) * 1983-03-14 1984-10-29 Mo Och Domsjoe Ab PROCEDURE FOR THE PREPARATION OF IMPROVED GRINDING MASS
FI75200B (en) * 1986-07-04 1988-01-29 Valmet Oy FOERFARANDE VID PAPPERSFRAMSTAELLNINGSPROCESS FOER FOERBAETTRING AV EGENSKAPER HOS PAPPERET, SAERSKILT DESS RETENTION.
SE459924B (en) * 1988-01-22 1989-08-21 Sunds Defibrator SET FOR MANUFACTURE OF MECHANICAL MASS
FI80735B (en) * 1988-08-04 1990-03-30 Tampella Oy Ab FOERFARANDE OCH ANORDNING FOER SORTERING OCH BEHANDLING AV MASSA.
SE465377B (en) * 1990-01-15 1991-09-02 Mo Och Domsjoe Ab Pulpwood sulphate pulp, preparation for its preparation and application of pulp
US5228954A (en) * 1991-05-28 1993-07-20 The Procter & Gamble Cellulose Company Cellulose pulps of selected morphology for improved paper strength potential
US5405499A (en) * 1993-06-24 1995-04-11 The Procter & Gamble Company Cellulose pulps having improved softness potential
US5679218A (en) * 1994-07-29 1997-10-21 The Procter & Gamble Company Tissue paper containing chemically softened coarse cellulose fibers
US5643413A (en) * 1994-10-11 1997-07-01 Hoffman Environmental Systems, Inc. Multi-ply paper product and method of making the same
US5503710A (en) * 1995-05-31 1996-04-02 Macmillan Bloedel Limited Duplex linerboard formed from old corrugated containers
US5770013A (en) * 1996-06-21 1998-06-23 Potlatch Corporation Method for manufacturing paper and paper fabricated from the same method
US6797114B2 (en) * 2001-12-19 2004-09-28 Kimberly-Clark Worldwide, Inc. Tissue products
US6821387B2 (en) * 2001-12-19 2004-11-23 Paper Technology Foundation, Inc. Use of fractionated fiber furnishes in the manufacture of tissue products, and products produced thereby
US20030111195A1 (en) * 2001-12-19 2003-06-19 Kimberly-Clark Worldwide, Inc. Method and system for manufacturing tissue products, and products produced thereby
US7364642B2 (en) * 2003-08-18 2008-04-29 Kimberly-Clark Worldwide, Inc. Recycling of latex-containing broke

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1880692A (en) * 1931-06-27 1932-10-04 Beloit Iron Works Method of and apparatus for making paper
US2098733A (en) * 1937-09-20 1937-11-09 Hummel Ross Fibre Corp Plyboard
US2370393A (en) * 1942-02-11 1945-02-27 William G Brubacher Method and apparatus for making wallboard
US3301745A (en) * 1963-04-26 1967-01-31 Scott Paper Co Pulp processing method for mixed cellulosic materials
US3363759A (en) * 1964-04-29 1968-01-16 Bird Machine Co Screening apparatus with rotary pulsing member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0153717A2 (en) * 1984-02-22 1985-09-04 Mo Och Domsjö Aktiebolag A method for producing improved high-yield pulps
EP0153717A3 (en) * 1984-02-22 1986-10-29 Mo Och Domsjo Aktiebolag A method for producing improved high-yield pulps
AU575112B2 (en) * 1984-02-22 1988-07-21 Mo Och Domsjo Aktiebolag A method for producing improved high-yield pulps

Also Published As

Publication number Publication date
FR2220622B1 (en) 1977-06-10
JPS49124309A (en) 1974-11-28
US3791917A (en) 1974-02-12
BR7401702D0 (en) 1974-11-05
FR2220622A1 (en) 1974-10-04
CA993700A (en) 1976-07-27

Similar Documents

Publication Publication Date Title
GB1402516A (en) Process for producing kraft paper laminate
US4562969A (en) Process for preparing groundwood pulp as short fiber and long fiber fractions
EP0096548B1 (en) Two-stage chemical treatment of mechanical wood pulp
US4776926A (en) Process for producing high yield bleached cellulose pulp
US6267841B1 (en) Low energy thermomechanical pulping process using an enzyme treatment between refining zones
DE3564974D1 (en) A method for producing improved high-yield pulps
GB1475422A (en) Method of and apparatus for recovering paper fibres from materials containing waste paper
US3057769A (en) Method of preparing paper of uniform appearance
SE459924B (en) SET FOR MANUFACTURE OF MECHANICAL MASS
US20050115690A1 (en) Methods for producing recycled pulp from waste paper
US2913362A (en) Method of producing cellulosic pulp
US4731160A (en) Drainage characteristics of mechanical pulp
US4002528A (en) Apparatus for processing pulp
US2591106A (en) Process of making paper pulps
EP0677122B1 (en) A method of producing mechanical and chemi-mechanical pulp
JPS63264994A (en) Continuous production of fiber-containing pulp
US5853534A (en) Method of producing pulp with high yield using a two-stage refining system operating at different temperatures
US6187135B1 (en) Process for making recycled paper having improving strength properties
US2847304A (en) Semi-chemical pulp process
WO1987005954A1 (en) Method of processing mechanical pulp
US2977274A (en) Digestion of pulp
EP1381731B1 (en) Production of fiber suspension from waste paper
SE8301359L (en) PROCEDURE FOR THE PREPARATION OF IMPROVED GRINDING MASS
FI76599C (en) ANORDINATION FOR DEFIBRATION AND SORTERING OF MASS IN PAPER AND CELLULOSE INDUSTRY.
EP0421968A2 (en) Conical refiner

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee