FI912136A - Behandling av alkalibehandlad massa för användning i pappersframställning - Google Patents
Behandling av alkalibehandlad massa för användning i pappersframställning Download PDFInfo
- Publication number
- FI912136A FI912136A FI912136A FI912136A FI912136A FI 912136 A FI912136 A FI 912136A FI 912136 A FI912136 A FI 912136A FI 912136 A FI912136 A FI 912136A FI 912136 A FI912136 A FI 912136A
- Authority
- FI
- Finland
- Prior art keywords
- bleached
- pulp
- alkaline treated
- papermaking
- alkali
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI912136A FI90670C (sv) | 1991-05-02 | 1991-05-02 | Behandling av alkalibehandlad massa för användning i pappersframställning |
NO921737A NO179842C (no) | 1991-05-02 | 1992-04-30 | Fremgangsmåte for papirtilvirkning ved avvanning av masse |
EP92304028A EP0512790B1 (en) | 1991-05-02 | 1992-05-05 | Treatment of alkali treated pulp for use in papermaking |
ES92304028T ES2092636T3 (es) | 1991-05-02 | 1992-05-05 | Tratamiento de pasta tratada en un medio alcalino para emplear en la fabricacion de papel. |
AT92304028T ATE140985T1 (de) | 1991-05-02 | 1992-05-05 | Behandlung von alkalisch behandeltem papierzellstoff |
DE69212529T DE69212529T2 (de) | 1991-05-02 | 1992-05-05 | Behandlung von alkalisch behandeltem Papierzellstoff |
US08/294,876 US5487812A (en) | 1991-05-02 | 1994-08-23 | Treatment of alkaline bleached mechanical wood pulp with pectinase |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI912136A FI90670C (sv) | 1991-05-02 | 1991-05-02 | Behandling av alkalibehandlad massa för användning i pappersframställning |
FI912136 | 1991-05-02 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI912136A0 FI912136A0 (sv) | 1991-05-02 |
FI912136A true FI912136A (sv) | 1992-11-03 |
FI90670B FI90670B (sv) | 1993-11-30 |
FI90670C FI90670C (sv) | 1994-03-10 |
Family
ID=8532435
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI912136A FI90670C (sv) | 1991-05-02 | 1991-05-02 | Behandling av alkalibehandlad massa för användning i pappersframställning |
Country Status (7)
Country | Link |
---|---|
US (1) | US5487812A (sv) |
EP (1) | EP0512790B1 (sv) |
AT (1) | ATE140985T1 (sv) |
DE (1) | DE69212529T2 (sv) |
ES (1) | ES2092636T3 (sv) |
FI (1) | FI90670C (sv) |
NO (1) | NO179842C (sv) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU4067297A (en) * | 1996-08-16 | 1998-03-06 | International Paper Company | Enzymatic freeness enhancement |
ATE371052T1 (de) | 1996-12-04 | 2007-09-15 | Novozymes North America Inc | Alkalisches enzymatisches abkochen von baumwolltextilien |
US20050003516A1 (en) * | 2003-04-16 | 2005-01-06 | Novozymes A/S | Enzymatic treatment of paper making |
WO2012015452A1 (en) * | 2009-11-11 | 2012-02-02 | International Paper Company | Effect of low dose xylanase on pulp in prebleach treatment process |
US9856606B2 (en) * | 2011-12-12 | 2018-01-02 | Enzymatic Deinking Technologies, L.L.C. | Enzymatic pre-treatment of market pulp to improve fiber drainage and physical properties |
CN104233893B (zh) * | 2014-09-03 | 2016-07-06 | 稼禾生物股份有限公司 | 一种清洁化高效纸浆清洗工艺 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4617383A (en) * | 1983-11-22 | 1986-10-14 | Helmic, Inc. | Method for degumming and bleaching decorticated plant bast fiber |
US4687745A (en) * | 1985-07-15 | 1987-08-18 | Repligen Corporation | Use of rLDM™ 1-6 and other ligninolytic enzymes in the treatment of mechanical pulps |
FR2588886B1 (fr) * | 1985-10-18 | 1988-06-24 | Comite Eco Agric Prod Chanvre | Procede de traitement biochimique de plantes fibreuses liberiennes ou cellulosiques et assimilees |
FR2604198B1 (fr) * | 1986-09-22 | 1989-07-07 | Du Pin Cellulose | Procede de traitement d'une pate papetiere par une solution enzymatique. |
US4964955A (en) * | 1988-12-21 | 1990-10-23 | Cyprus Mines Corporation | Method of reducing pitch in pulping and papermaking operations |
JPH02118191A (ja) * | 1988-10-26 | 1990-05-02 | Jujo Paper Co Ltd | 製紙用機械パルプの製造方法及び紙の製造方法 |
FI85041C (sv) * | 1989-01-16 | 1992-02-25 | Enso Gutzeit Oy | Förfarande för att bringa pappersmassa på en pappersmaskins vira |
FI86896B (fi) * | 1989-05-04 | 1992-07-15 | Enso Gutzeit Oy | Foerfarande foer blekning av cellulosamassa. |
NZ235679A (en) * | 1989-10-18 | 1993-01-27 | Int Paper Co | Bleaching lignocellulosic pulp using (a) treatment with xylanase and (b) one or more chemical bleaching stages |
FI89814C (sv) * | 1990-02-02 | 1993-11-25 | Enso Gutzeit Oy | Förfarande för blekning av cellulosamassa |
-
1991
- 1991-05-02 FI FI912136A patent/FI90670C/sv active
-
1992
- 1992-04-30 NO NO921737A patent/NO179842C/no not_active IP Right Cessation
- 1992-05-05 DE DE69212529T patent/DE69212529T2/de not_active Expired - Fee Related
- 1992-05-05 ES ES92304028T patent/ES2092636T3/es not_active Expired - Lifetime
- 1992-05-05 EP EP92304028A patent/EP0512790B1/en not_active Expired - Lifetime
- 1992-05-05 AT AT92304028T patent/ATE140985T1/de not_active IP Right Cessation
-
1994
- 1994-08-23 US US08/294,876 patent/US5487812A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NO921737D0 (no) | 1992-04-30 |
DE69212529D1 (de) | 1996-09-05 |
DE69212529T2 (de) | 1996-11-28 |
EP0512790B1 (en) | 1996-07-31 |
FI90670B (sv) | 1993-11-30 |
FI912136A0 (sv) | 1991-05-02 |
NO179842B (no) | 1996-09-16 |
NO179842C (no) | 1996-12-27 |
ES2092636T3 (es) | 1996-12-01 |
ATE140985T1 (de) | 1996-08-15 |
FI90670C (sv) | 1994-03-10 |
NO921737L (no) | 1992-11-03 |
EP0512790A1 (en) | 1992-11-11 |
US5487812A (en) | 1996-01-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application |