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JPS6247999B2 - - Google Patents

Info

Publication number
JPS6247999B2
JPS6247999B2 JP53130583A JP13058378A JPS6247999B2 JP S6247999 B2 JPS6247999 B2 JP S6247999B2 JP 53130583 A JP53130583 A JP 53130583A JP 13058378 A JP13058378 A JP 13058378A JP S6247999 B2 JPS6247999 B2 JP S6247999B2
Authority
JP
Japan
Prior art keywords
pulp
weight
mechanical
wood
sodium sulfite
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
JP53130583A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5473902A (en
Inventor
Jon Baanetsuto Adorian
Shii Shau Aran
Donarudo Roogan Chaaruzu
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.)
KYUU ENU ESU PEIPAA CO Ltd
Original Assignee
KYUU ENU ESU PEIPAA CO Ltd
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 KYUU ENU ESU PEIPAA CO Ltd filed Critical KYUU ENU ESU PEIPAA CO Ltd
Publication of JPS5473902A publication Critical patent/JPS5473902A/ja
Publication of JPS6247999B2 publication Critical patent/JPS6247999B2/ja
Granted legal-status Critical Current

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing 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
    • D21C9/001—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
JP13058378A 1977-10-25 1978-10-25 Treatment of machined pulp Granted JPS5473902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA289,427A CA1071805A (en) 1977-10-25 1977-10-25 Drainage and wet stretch improvement in mechanical pulps

Publications (2)

Publication Number Publication Date
JPS5473902A JPS5473902A (en) 1979-06-13
JPS6247999B2 true JPS6247999B2 (no) 1987-10-12

Family

ID=4109848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13058378A Granted JPS5473902A (en) 1977-10-25 1978-10-25 Treatment of machined pulp

Country Status (3)

Country Link
JP (1) JPS5473902A (no)
CA (1) CA1071805A (no)
FI (1) FI74051C (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502918A (en) * 1981-06-10 1985-03-05 Macmillan Bloedel Limited Two-stage chemical treatment of mechanical wood pulp with sodium sulfite
US4708771A (en) * 1984-12-31 1987-11-24 Bear Island Paper Company Two stage process for sulfonating mechanical pulp fibers
US4731160A (en) * 1986-03-19 1988-03-15 Kamyr, Inc. Drainage characteristics of mechanical pulp
US5169496A (en) * 1991-04-23 1992-12-08 International Paper Company Method of producing multi-ply paper and board products exhibiting increased stiffness
SE517297E (sv) * 1999-09-10 2004-12-07 Stora Enso Ab Metod vid produktion av mekanisk massa från ett cellulosainnehållande material, massa framställd enligt metoden samt kartong producerad av massan

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3773610A (en) * 1970-12-11 1973-11-20 Bauer Bros Co Pressurized system for pulp refining including pressurized double disk treatment
JPS4838328A (no) * 1971-09-17 1973-06-06
JPS5214322A (en) * 1975-07-25 1977-02-03 Hitachi Ltd Data processing unit
US4145246A (en) * 1976-07-19 1979-03-20 Crown Zellerbach Corporation Process for making high-strength, high-yield sulfite-modified thermomechanical pulp and a linerboard composition produced therefrom

Also Published As

Publication number Publication date
FI74051C (fi) 1988-11-28
JPS5473902A (en) 1979-06-13
CA1071805A (en) 1980-02-19
FI783200A7 (fi) 1979-04-26
FI74051B (fi) 1987-08-31

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