GB1376518A - Manufacture of fibre sheet products - Google Patents

Manufacture of fibre sheet products

Info

Publication number
GB1376518A
GB1376518A GB4723572A GB4723572A GB1376518A GB 1376518 A GB1376518 A GB 1376518A GB 4723572 A GB4723572 A GB 4723572A GB 4723572 A GB4723572 A GB 4723572A GB 1376518 A GB1376518 A GB 1376518A
Authority
GB
United Kingdom
Prior art keywords
forming
water
layer
substances
stage
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
GB4723572A
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.)
KARLSTAD MEKANISKA AB
Metso Fiber Karlstad AB
Original Assignee
KARLSTAD MEKANISKA AB
Karlstads Mekaniska Werkstad AB
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 KARLSTAD MEKANISKA AB, Karlstads Mekaniska Werkstad AB filed Critical KARLSTAD MEKANISKA AB
Publication of GB1376518A publication Critical patent/GB1376518A/en
Expired legal-status Critical Current

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

Landscapes

  • Paper (AREA)

Abstract

1376518 Manufacture of fibre sheets KARLSTADS MEKANISKA WERKSTAD AB 13 Oct 1972 [15 Oct 1971] 47235/72 Heading D2A In the manufacture of fibre sheets, e.g. paper, using an initial fibre-stock suspension containing B.O.D., (biochemical oxygen dem- and) substances, the suspension is divided into flows 5, 6, the flow 5 is conveyed to a first sheet forming stage 7 in which a first layer 8 is formed, the flow 6 is subjected to a washing process 9 in which the original B.O.D. substances containing suspension water is replaced by water substantially free of these substances, the washed flow 11 is conveyed to a second sheet forming stage 13 and optionally to a third sheet forming stages 14 where layers are formed which are added to the layer 8, and the water removed in the first sheet forming stage 7 and the original B.O.D. substances containing suspension water from the washing process 9 is recirculated to the initial fibre-stock suspension. Wood associated with water is ground to a pulp at 1; the pulp being then screened at 3 with the recirculated water entering at 4. The water from the second and third forming stages 13, 14 and from a pressing stage 17 is recirculated to the washing process at 10. The three layered web 18 has the layer 8 as the centre layer and passes from the pressing stage 17 to a dryer (not shown). Clean water is supplied at 19 for cleaning, the press felts. Chemical wood-pulp may be added at 20. The layer 8 may be dewatered in forming stage 7 to a value such that its water content does not exceed the total water content of the three layered web 18, to prevent B.O.D. substances reaching the outer surfaces of the web during pressing. A web of more than three layers may be produced and this may be of cardboard or fibreboard. A paper-making machine for forming a three-layered web, Fig. 2 (not shown), has three successively disposed sheet forming double wire sections and a press section, the first forming section having a pervious forming suction roll, and the other two forming sections have impervious forming rolls which avoid dewatering through the first layer containing B.O.D. substances. The headboxes for the second and third forming sections are directed to one side of the previously formed layer or layers so as not to disturb these.
GB4723572A 1971-10-15 1972-10-13 Manufacture of fibre sheet products Expired GB1376518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE13117/71A SE362672B (en) 1971-10-15 1971-10-15

Publications (1)

Publication Number Publication Date
GB1376518A true GB1376518A (en) 1974-12-04

Family

ID=20296864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4723572A Expired GB1376518A (en) 1971-10-15 1972-10-13 Manufacture of fibre sheet products

Country Status (11)

Country Link
US (1) US3821073A (en)
JP (1) JPS5122962B2 (en)
AT (1) AT326996B (en)
CA (1) CA971789A (en)
DE (1) DE2250421A1 (en)
FR (1) FR2157459A5 (en)
GB (1) GB1376518A (en)
IT (1) IT975214B (en)
NO (1) NO140939C (en)
SE (1) SE362672B (en)
SU (1) SU722496A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477313A (en) * 1981-12-03 1984-10-16 Aktiebolaget Karlstads Mekaniska Werkstad Method and apparatus for producing a multilayer paper web

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7317565L (en) * 1973-12-28 1975-06-30 Selander Stig Daniel
SE7704737L (en) * 1977-04-25 1978-10-26 S D Selander WAY TO PUT ONE OR SEVERAL SURFACE LAYERS ON THE GROUND MASS PANEL IN THE MANUFACTURE OF FIBER SHEETS ON VATA ROAD
USRE31507E (en) 1979-02-21 1984-01-24 Federal Paper Board Company, Inc. Method of treating papermaking white water
US4525278A (en) * 1979-02-21 1985-06-25 Federal Paper Board Company, Inc. Method of treating chemical process water
US4221634A (en) * 1979-02-21 1980-09-09 Federal Paper Board Company, Inc. Method of treating papermaking white water
SE421939B (en) * 1980-06-05 1982-02-08 Karlstad Mekaniska Ab BACKGROUND MANAGEMENT PROCEDURE
SE510341C2 (en) * 1997-08-19 1999-05-17 Sca Research Ab Method and apparatus for forming a multilayer web
US6423183B1 (en) * 1997-12-24 2002-07-23 Kimberly-Clark Worldwide, Inc. Paper products and a method for applying a dye to cellulosic fibers
US6379498B1 (en) * 2000-02-28 2002-04-30 Kimberly-Clark Worldwide, Inc. Method for adding an adsorbable chemical additive to pulp during the pulp processing and products made by said method
US6582560B2 (en) * 2001-03-07 2003-06-24 Kimberly-Clark Worldwide, Inc. Method for using water insoluble chemical additives with pulp and products made by said method
US7749356B2 (en) * 2001-03-07 2010-07-06 Kimberly-Clark Worldwide, Inc. Method for using water insoluble chemical additives with pulp and products made by said method
TW593838B (en) * 2001-06-11 2004-06-21 Sca Hygiene Prod Ab A patterned paper and a method for manufacturing such
CN105332311B (en) * 2015-11-26 2017-12-15 黄蒋元 Papermaking to zero discharge standard production line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477313A (en) * 1981-12-03 1984-10-16 Aktiebolaget Karlstads Mekaniska Werkstad Method and apparatus for producing a multilayer paper web

Also Published As

Publication number Publication date
DE2250421A1 (en) 1973-05-03
IT975214B (en) 1974-07-20
NO140939C (en) 1979-12-12
SU722496A3 (en) 1980-03-15
NO140939B (en) 1979-09-03
CA971789A (en) 1975-07-29
US3821073A (en) 1974-06-28
AT326996B (en) 1976-01-12
JPS5122962B2 (en) 1976-07-14
ATA879872A (en) 1975-03-15
FR2157459A5 (en) 1973-06-01
SE362672B (en) 1973-12-17
JPS48103804A (en) 1973-12-26

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Legal Events

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