SE9903418D0 - Method for modifying cellulose-based fiber materials - Google Patents
Method for modifying cellulose-based fiber materialsInfo
- Publication number
- SE9903418D0 SE9903418D0 SE9903418A SE9903418A SE9903418D0 SE 9903418 D0 SE9903418 D0 SE 9903418D0 SE 9903418 A SE9903418 A SE 9903418A SE 9903418 A SE9903418 A SE 9903418A SE 9903418 D0 SE9903418 D0 SE 9903418D0
- Authority
- SE
- Sweden
- Prior art keywords
- cellulose fibers
- approximately
- electrolyte
- modified
- fiber materials
- 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
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/20—Chemically or biochemically modified fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
A method for modifying cellulose fibers; which are treated for at least 5 minutes with an aqueous solution of CMC or CMC-derivative containing electrolyte at a temperature of at least approximately 100 DEG C, and the pH during the treatment is approximately 1.5-4.5, or higher than 11; or the concentration of electrolyte is approximately 0.001 - 0.5 M, if the electrolyte has monovalent cations, or approximately 0.0002 - 0.5 M, if the electrolyte has divalent cations, and cellulose fibers that have been modified according to this method, and use of the modified cellulose fibers for the manufacture of rayon fibers. A method for the manufacture of paper with a high wet strength, whereby an aqueous suspension of cellulose fibers is produced, and the cellulose fibers are modified as described above, and wet-strength agent is added to the aqueous suspension; and paper with a high wet strength manufactured according to this method.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9903418A SE9903418D0 (en) | 1999-09-22 | 1999-09-22 | Method for modifying cellulose-based fiber materials |
EP00966646A EP1240389B1 (en) | 1999-09-22 | 2000-09-20 | Method for modifying cellulose-based fiber material |
AU76960/00A AU7696000A (en) | 1999-09-22 | 2000-09-20 | Method for modifying cellulose-based fiber material |
DE60044504T DE60044504D1 (en) | 1999-09-22 | 2000-09-20 | METHOD FOR MODIFYING FIBROUS TO CELLULOSE BASE |
PCT/SE2000/001823 WO2001021890A1 (en) | 1999-09-22 | 2000-09-20 | Method for modifying cellulose-based fiber material |
AT00966646T ATE470011T1 (en) | 1999-09-22 | 2000-09-20 | METHOD FOR MODIFYING CELLULOSE-BASED FIBER |
ES00966646T ES2346634T3 (en) | 1999-09-22 | 2000-09-20 | PROCEDURE FOR MODIFICATION OF A FIBER MATERIAL BASED ON CELLULOSE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9903418A SE9903418D0 (en) | 1999-09-22 | 1999-09-22 | Method for modifying cellulose-based fiber materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SE9903418D0 true SE9903418D0 (en) | 1999-09-22 |
Family
ID=20417102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9903418A SE9903418D0 (en) | 1999-09-22 | 1999-09-22 | Method for modifying cellulose-based fiber materials |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1240389B1 (en) |
AT (1) | ATE470011T1 (en) |
AU (1) | AU7696000A (en) |
DE (1) | DE60044504D1 (en) |
ES (1) | ES2346634T3 (en) |
SE (1) | SE9903418D0 (en) |
WO (1) | WO2001021890A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0200937L (en) * | 2002-03-25 | 2002-12-23 | Kvaerner Pulping Tech | Method for modifying cellulose fibers in connection with cooking |
SE0202652D0 (en) * | 2002-09-09 | 2002-09-09 | Skogsind Tekn Foskningsinst | Method for sizing paper or paperboard |
SE0400396D0 (en) | 2004-02-20 | 2004-02-20 | Skogsind Tekn Foskningsinst | Method of modifying lignocellulosic material |
SE0401600D0 (en) * | 2004-06-18 | 2004-06-18 | Stfi Packforsk Ab | Method of manufacturing paper or similar |
NZ554610A (en) * | 2004-11-05 | 2009-10-30 | Akzo Nobel Nv | Method of treating cellulose fibres under acidic conditions in the presence of carboxymethyl cellulose |
US8007636B2 (en) | 2004-11-05 | 2011-08-30 | Akzo Nobel N.V. | Method of treating cellulose fibres with chlorine dioxide and an alkyl cellulose derivative |
SE0800807L (en) * | 2008-04-10 | 2009-10-11 | Stfi Packforsk Ab | New procedure |
FI124724B (en) | 2009-02-13 | 2014-12-31 | Upm Kymmene Oyj | A process for preparing modified cellulose |
FI125829B (en) | 2011-03-07 | 2016-02-29 | Aalto Korkeakoulusã Ã Tiã | Double click technology |
SE538863C2 (en) * | 2015-05-22 | 2017-01-10 | Innventia Ab | Process for the production of paper or paperboard, paper or paperboard product obtained and uses thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3468696A (en) * | 1965-04-05 | 1969-09-23 | C H Dexter & Sons Inc | Method of producing a fibrous web material having retained wet strength at high humidity and the fibrous material produced thereby |
US4199367A (en) * | 1975-11-07 | 1980-04-22 | Avtex Fibers Inc. | Alloy rayon |
EP0337310A1 (en) * | 1988-04-15 | 1989-10-18 | Air Products And Chemicals, Inc. | Poly(vinyl alcohol-vinylamine)copolymers for improved moist compressive strength of paper products |
US5354424A (en) * | 1989-02-10 | 1994-10-11 | Rha Chokyun | Paper composition and methods therefor |
US5318669A (en) * | 1991-12-23 | 1994-06-07 | Hercules Incorporated | Enhancement of paper dry strength by anionic and cationic polymer combination |
US6228217B1 (en) * | 1995-01-13 | 2001-05-08 | Hercules Incorporated | Strength of paper made from pulp containing surface active, carboxyl compounds |
EP0802282A1 (en) * | 1995-11-02 | 1997-10-22 | Uni-Charm Company Limited | Process for preparing hydrolyzable sheet |
JP3296989B2 (en) * | 1997-03-31 | 2002-07-02 | ユニ・チャーム株式会社 | Water disintegrable sheet and method for producing the same |
FI106273B (en) * | 1998-04-30 | 2000-12-29 | Metsae Serla Oyj | Process for the manufacture of a fiber product |
-
1999
- 1999-09-22 SE SE9903418A patent/SE9903418D0/en unknown
-
2000
- 2000-09-20 AT AT00966646T patent/ATE470011T1/en active
- 2000-09-20 DE DE60044504T patent/DE60044504D1/en not_active Expired - Lifetime
- 2000-09-20 ES ES00966646T patent/ES2346634T3/en not_active Expired - Lifetime
- 2000-09-20 EP EP00966646A patent/EP1240389B1/en not_active Expired - Lifetime
- 2000-09-20 WO PCT/SE2000/001823 patent/WO2001021890A1/en active Application Filing
- 2000-09-20 AU AU76960/00A patent/AU7696000A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1240389B1 (en) | 2010-06-02 |
DE60044504D1 (en) | 2010-07-15 |
EP1240389A1 (en) | 2002-09-18 |
AU7696000A (en) | 2001-04-24 |
ATE470011T1 (en) | 2010-06-15 |
WO2001021890A1 (en) | 2001-03-29 |
ES2346634T3 (en) | 2010-10-19 |
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