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SE510528C2 - Chemical modification of pulp material for making paper - Google Patents

Chemical modification of pulp material for making paper

Info

Publication number
SE510528C2
SE510528C2 SE9703348A SE9703348A SE510528C2 SE 510528 C2 SE510528 C2 SE 510528C2 SE 9703348 A SE9703348 A SE 9703348A SE 9703348 A SE9703348 A SE 9703348A SE 510528 C2 SE510528 C2 SE 510528C2
Authority
SE
Sweden
Prior art keywords
wood
galactose oxidase
chemical modification
pulp material
fibers
Prior art date
Application number
SE9703348A
Other languages
Swedish (sv)
Other versions
SE9703348D0 (en
SE9703348L (en
Inventor
Jeff Thornton
Original Assignee
Sca Research Ab
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 Sca Research Ab filed Critical Sca Research Ab
Priority to SE9703348A priority Critical patent/SE510528C2/en
Publication of SE9703348D0 publication Critical patent/SE9703348D0/en
Publication of SE9703348L publication Critical patent/SE9703348L/en
Publication of SE510528C2 publication Critical patent/SE510528C2/en

Links

Classifications

    • 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
    • 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

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)

Abstract

Galactosoxidase is used to treat the pulp material. A method for chemically modifying wood fibres and/or fine material derived from wood fibres comprises treating the material with galactosoxidase. An Independent claim is also included for a paper product containing wood fibre material chemically modified by this method.

Description

.510 528 2 förpackningsprodukter, men kan även användas för andra produkter där en modifierad kemisk funktionalitet hos fibrer och fines är önskvärd. .510 528 2 packaging products, but may also be used for other products where a modified chemical functionality of fi brer and fi nes is desired.

Claims (5)

15 l\) (11 510 528 3 PATENTKRAV15 l \) (11 510 528 3 PATENTKRAV 1. l. Metod för att kemiskt modifiera träfibrer och/eller finmaterial hänörande från träfibrer, kännetecknad av att träñbrema och/eller ñnmaterialet behandlas med galaktosoxidas.1. l. Method for chemically modifying wood fibers and / or fine materials derived from wood fibers, characterized in that the wood fibers and / or the material are treated with galactose oxidase. 2. Metod enligt patentkrav, kännetecknad av att behandlingen med galaktosoxidas medför en oxidation av hemicellulosan galaktoglukomarman som finns närvarande i fibrerna eller ñnmaterialet.Method according to claim 1, characterized in that the treatment with galactose oxidase causes an oxidation of the hemicellulose galactoglucomarman present in the fibers or the material. 3. Metod enligt patentkrav 1 eller 2, kännetecknad av att träfibrema och/eller finmateríalet härrör från en mekanisk massaprocess, såsom termomekanisk, kemimekanísk, kemitermomekanisk eller slipmassaprocess, eller modifieringar av dessa eller från returpapper innehållande sådana mekaniska massor.Method according to Claim 1 or 2, characterized in that the wood brim and / or the material originates from a mechanical pulp process, such as thermomechanical, chememechanical, chemithermomechanical or abrasive pulp process, or modifications thereof or from waste paper containing such mechanical pulps. 4. Metod enligt något eller några av föregående patentkrav, kännetecknad av att behandlingen med galaktosoxidas utförs i samband med en pappersframställnings- process.Method according to one or more of the preceding claims, characterized in that the treatment with galactose oxidase is carried out in connection with a papermaking process. 5. Pappersprodukt innehållande träfibrer och/eller finmaterial som har kemiskt modifierats med metoden enligt något eller några av patentkraven 1-4.Paper product containing wood and / or fine materials which have been chemically modified by the method according to any one or more of claims 1-4.
SE9703348A 1997-09-15 1997-09-15 Chemical modification of pulp material for making paper SE510528C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9703348A SE510528C2 (en) 1997-09-15 1997-09-15 Chemical modification of pulp material for making paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9703348A SE510528C2 (en) 1997-09-15 1997-09-15 Chemical modification of pulp material for making paper

Publications (3)

Publication Number Publication Date
SE9703348D0 SE9703348D0 (en) 1997-09-15
SE9703348L SE9703348L (en) 1999-03-16
SE510528C2 true SE510528C2 (en) 1999-05-31

Family

ID=20408273

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703348A SE510528C2 (en) 1997-09-15 1997-09-15 Chemical modification of pulp material for making paper

Country Status (1)

Country Link
SE (1) SE510528C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824645B2 (en) 1999-02-24 2004-11-30 Sca Hygiene Products Gmbh Oxidized cellulose-containing fibrous materials and products made therefrom
US6987181B2 (en) 1999-11-08 2006-01-17 Sca Hygiene Products Gmbh Oxidized polymeric carbohydrates and products made thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824645B2 (en) 1999-02-24 2004-11-30 Sca Hygiene Products Gmbh Oxidized cellulose-containing fibrous materials and products made therefrom
US6987181B2 (en) 1999-11-08 2006-01-17 Sca Hygiene Products Gmbh Oxidized polymeric carbohydrates and products made thereof

Also Published As

Publication number Publication date
SE9703348D0 (en) 1997-09-15
SE9703348L (en) 1999-03-16

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Legal Events

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NUG Patent has lapsed