FI911410A - Process for reducing resin difficulties in mechanical pulp - Google Patents
Process for reducing resin difficulties in mechanical pulp Download PDFInfo
- Publication number
- FI911410A FI911410A FI911410A FI911410A FI911410A FI 911410 A FI911410 A FI 911410A FI 911410 A FI911410 A FI 911410A FI 911410 A FI911410 A FI 911410A FI 911410 A FI911410 A FI 911410A
- Authority
- FI
- Finland
- Prior art keywords
- mechanical pulp
- reducing resin
- pulp
- difficulties
- resin difficulties
- 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
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention relates to a method for reducing the pitch trouble of mechanical pulp and/or papermaking pulp containing mechanical pulp by treating the pulp or white water with a cellulase/hemicellulase enzyme preparation.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI911410A FI93230C (en) | 1991-03-22 | 1991-03-22 | Method for reducing resin difficulties in mechanical pulp |
NZ241976A NZ241976A (en) | 1991-03-22 | 1992-03-16 | Use of (hemi)cellulase enzymes for reducing pitch trouble in mechanical |
AU14104/92A AU660966B2 (en) | 1991-03-22 | 1992-03-19 | A method for reducing pitch trouble in mechanical pulp |
PCT/FI1992/000076 WO1992016687A1 (en) | 1991-03-22 | 1992-03-19 | A method for reducing pitch trouble in mechanical pulp |
CA002105159A CA2105159A1 (en) | 1991-03-22 | 1992-03-19 | A method for reducing pitch trouble in mechanical pulp |
EP92906287A EP0576470B1 (en) | 1991-03-22 | 1992-03-19 | A method for reducing pitch trouble in mechanical pulp |
AT92906287T ATE138130T1 (en) | 1991-03-22 | 1992-03-19 | METHOD FOR REDUCING RESIN PROBLEMS IN MECHANICAL WOOD PURPOSE |
ES92906287T ES2086732T3 (en) | 1991-03-22 | 1992-03-19 | A METHOD TO REDUCE THE PROBLEM OF THE BREA IN THE MECHANICAL PASTA. |
DK92906287.5T DK0576470T3 (en) | 1991-03-22 | 1992-03-19 | Process for reducing pitch problems in mechanical wood pulp |
JP4505526A JP2588465B2 (en) | 1991-03-22 | 1992-03-19 | Method for reducing pitch disturbance in mechanical pulp |
DE69210811T DE69210811T2 (en) | 1991-03-22 | 1992-03-19 | METHOD FOR REDUCING RESIN PROBLEMS IN MECHANICAL WOOD FABRIC |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI911410 | 1991-03-22 | ||
FI911410A FI93230C (en) | 1991-03-22 | 1991-03-22 | Method for reducing resin difficulties in mechanical pulp |
Publications (4)
Publication Number | Publication Date |
---|---|
FI911410A0 FI911410A0 (en) | 1991-03-22 |
FI911410A true FI911410A (en) | 1992-10-05 |
FI93230B FI93230B (en) | 1994-11-30 |
FI93230C FI93230C (en) | 1995-03-10 |
Family
ID=8532172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI911410A FI93230C (en) | 1991-03-22 | 1991-03-22 | Method for reducing resin difficulties in mechanical pulp |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0576470B1 (en) |
JP (1) | JP2588465B2 (en) |
AT (1) | ATE138130T1 (en) |
AU (1) | AU660966B2 (en) |
CA (1) | CA2105159A1 (en) |
DE (1) | DE69210811T2 (en) |
DK (1) | DK0576470T3 (en) |
ES (1) | ES2086732T3 (en) |
FI (1) | FI93230C (en) |
NZ (1) | NZ241976A (en) |
WO (1) | WO1992016687A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995018219A1 (en) * | 1993-12-24 | 1995-07-06 | Gist-Brocades N.V. | Alkali-tolerant xylanases |
US5961735A (en) * | 1995-06-21 | 1999-10-05 | North Carolina State University | Method of cleaning papermaking felts with enzymes |
FI105833B (en) * | 1998-07-13 | 2000-10-13 | Valtion Teknillinen | A method for concentrating process water LK substances |
US6579841B1 (en) | 1998-12-18 | 2003-06-17 | Genencor International, Inc. | Variant EGIII-like cellulase compositions |
US6268328B1 (en) | 1998-12-18 | 2001-07-31 | Genencor International, Inc. | Variant EGIII-like cellulase compositions |
US7977051B2 (en) | 1999-04-10 | 2011-07-12 | Danisco Us Inc. | EGIII-like enzymes, DNA encoding such enzymes and methods for producing such enzymes |
ES2282020B1 (en) * | 2005-07-06 | 2008-10-01 | Consejo Superior Investigaciones Cientificas | ENZYME-MEDIATOR SYSTEM FOR THE CONTROL OF PITCH DEPOSITS IN THE MANUFACTURE OF PASTA AND PAPER. |
JP6531604B2 (en) * | 2015-10-06 | 2019-06-19 | 王子ホールディングス株式会社 | Composition comprising wood fiber |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2604198B1 (en) * | 1986-09-22 | 1989-07-07 | Du Pin Cellulose | PROCESS FOR TREATING A PAPER PULP WITH AN ENZYMATIC SOLUTION. |
DE3636208A1 (en) * | 1986-10-24 | 1988-05-05 | Call Hans Peter | METHOD FOR DELIGNIFYING AND WHICH BLEACHING LIGNICELLULOSE-CONTAINING OR LIGNINAL MATERIAL OR LIGNIN BY ENZYMATIC TREATMENT |
JPH02160997A (en) * | 1988-12-13 | 1990-06-20 | Jujo Paper Co Ltd | Method for preventing trouble by pitch |
FI85041C (en) * | 1989-01-16 | 1992-02-25 | Enso Gutzeit Oy | FOERFARANDE FOER ATT BRINGA PAPPERSMASSA PAO EN PAPPERSMASKINS VIRA. |
FI92414B (en) * | 1989-11-27 | 1994-07-29 | Enso Gutzeit Oy | Process for mass production |
-
1991
- 1991-03-22 FI FI911410A patent/FI93230C/en not_active IP Right Cessation
-
1992
- 1992-03-16 NZ NZ241976A patent/NZ241976A/en unknown
- 1992-03-19 AT AT92906287T patent/ATE138130T1/en not_active IP Right Cessation
- 1992-03-19 DK DK92906287.5T patent/DK0576470T3/en active
- 1992-03-19 EP EP92906287A patent/EP0576470B1/en not_active Expired - Lifetime
- 1992-03-19 CA CA002105159A patent/CA2105159A1/en not_active Abandoned
- 1992-03-19 DE DE69210811T patent/DE69210811T2/en not_active Expired - Fee Related
- 1992-03-19 AU AU14104/92A patent/AU660966B2/en not_active Ceased
- 1992-03-19 WO PCT/FI1992/000076 patent/WO1992016687A1/en active IP Right Grant
- 1992-03-19 ES ES92906287T patent/ES2086732T3/en not_active Expired - Lifetime
- 1992-03-19 JP JP4505526A patent/JP2588465B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06506021A (en) | 1994-07-07 |
WO1992016687A1 (en) | 1992-10-01 |
DE69210811T2 (en) | 1996-11-28 |
EP0576470A1 (en) | 1994-01-05 |
CA2105159A1 (en) | 1992-09-23 |
NZ241976A (en) | 1994-02-25 |
JP2588465B2 (en) | 1997-03-05 |
AU660966B2 (en) | 1995-07-13 |
EP0576470B1 (en) | 1996-05-15 |
AU1410492A (en) | 1992-10-21 |
DK0576470T3 (en) | 1996-06-03 |
ES2086732T3 (en) | 1996-07-01 |
FI911410A0 (en) | 1991-03-22 |
FI93230B (en) | 1994-11-30 |
FI93230C (en) | 1995-03-10 |
ATE138130T1 (en) | 1996-06-15 |
DE69210811D1 (en) | 1996-06-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
MA | Patent expired |