SE8800610D0 - PRODUCTION OF HIGH STRENGTH LINERBOARD WITH OXYGEN AND ALKALI - Google Patents
PRODUCTION OF HIGH STRENGTH LINERBOARD WITH OXYGEN AND ALKALIInfo
- Publication number
- SE8800610D0 SE8800610D0 SE8800610A SE8800610A SE8800610D0 SE 8800610 D0 SE8800610 D0 SE 8800610D0 SE 8800610 A SE8800610 A SE 8800610A SE 8800610 A SE8800610 A SE 8800610A SE 8800610 D0 SE8800610 D0 SE 8800610D0
- Authority
- SE
- Sweden
- Prior art keywords
- oxygen
- alkali
- production
- linerboard
- high strength
- Prior art date
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
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.
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 true SE8800610D0 (en) | 1988-02-23 |
SE8800610L 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) |
-
1988
- 1988-02-23 NO NO880773A patent/NO880773L/en unknown
- 1988-02-23 CA CA000559542A patent/CA1289305C/en not_active Expired - Fee Related
- 1988-02-23 SE SE8800610A patent/SE8800610L/en not_active Application Discontinuation
- 1988-02-24 FI FI880870A patent/FI880870A/en not_active IP Right Cessation
- 1988-02-24 JP JP63041815A patent/JPS63282388A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS63282388A (en) | 1988-11-18 |
NO880773D0 (en) | 1988-02-23 |
FI880870A0 (en) | 1988-02-24 |
CA1289305C (en) | 1991-09-24 |
SE8800610L (en) | 1988-08-25 |
NO880773L (en) | 1988-08-25 |
FI880870A (en) | 1988-08-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8800610-1 Effective date: 19940901 |