SE8800610L - MANUFACTURE OF HIGH-STRENGTH LINERBOARD USING OXYGEN AND ALKALI - Google Patents

MANUFACTURE OF HIGH-STRENGTH LINERBOARD USING OXYGEN AND ALKALI

Info

Publication number
SE8800610L
SE8800610L SE8800610A SE8800610A SE8800610L SE 8800610 L SE8800610 L SE 8800610L SE 8800610 A SE8800610 A SE 8800610A SE 8800610 A SE8800610 A SE 8800610A SE 8800610 L SE8800610 L SE 8800610L
Authority
SE
Sweden
Prior art keywords
oxygen
alkali
linerboard
pulp
manufacture
Prior art date
Application number
SE8800610A
Other languages
Swedish (sv)
Other versions
SE8800610D0 (en
Inventor
F P Lowry
Original Assignee
Westvaco 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 Westvaco Corp filed Critical Westvaco Corp
Publication of SE8800610D0 publication Critical patent/SE8800610D0/en
Publication of SE8800610L publication Critical patent/SE8800610L/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

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

Abstract

PRODUCTION OF HIGH STRENGTH LINERBOARD WITH OXYGEN AND ALKALI Pulp for the production of high strength linerboard is obtained by digesting wood chips in alkaline cooking liquor, defibering, treating with oxygen and alkali, and refining. Linerboard pulp produced by this method has better paper strength properties and is easier to refine than pulp not treated with oxygen and alkali. The treatment is conducted in its best mode at temperatures below 100.degree.C to minimize pulp yield losses.
SE8800610A 1987-02-24 1988-02-23 MANUFACTURE OF HIGH-STRENGTH LINERBOARD USING OXYGEN AND ALKALI SE8800610L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1786687A 1987-02-24 1987-02-24

Publications (2)

Publication Number Publication Date
SE8800610D0 SE8800610D0 (en) 1988-02-23
SE8800610L true SE8800610L (en) 1988-08-25

Family

ID=21784970

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8800610A SE8800610L (en) 1987-02-24 1988-02-23 MANUFACTURE OF HIGH-STRENGTH LINERBOARD USING OXYGEN AND ALKALI

Country Status (5)

Country Link
JP (1) JPS63282388A (en)
CA (1) CA1289305C (en)
FI (1) FI880870A (en)
NO (1) NO880773L (en)
SE (1) SE8800610L (en)

Also Published As

Publication number Publication date
NO880773D0 (en) 1988-02-23
CA1289305C (en) 1991-09-24
FI880870A (en) 1988-08-25
JPS63282388A (en) 1988-11-18
FI880870A0 (en) 1988-02-24
NO880773L (en) 1988-08-25
SE8800610D0 (en) 1988-02-23

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8800610-1

Effective date: 19940901