MY136417A - A process for the production of paper - Google Patents

A process for the production of paper

Info

Publication number
MY136417A
MY136417A MYPI20041682A MY136417A MY 136417 A MY136417 A MY 136417A MY PI20041682 A MYPI20041682 A MY PI20041682A MY 136417 A MY136417 A MY 136417A
Authority
MY
Malaysia
Prior art keywords
aqueous flow
molecular weight
introducing
paper
diluting
Prior art date
Application number
Inventor
Carr Duncan Stobart
Original Assignee
Akzo Nobel Nv
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 Akzo Nobel Nv filed Critical Akzo Nobel Nv
Publication of MY136417A publication Critical patent/MY136417A/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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/24—Addition to the formed paper during paper manufacture
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular 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
    • 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
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers

Landscapes

  • Paper (AREA)

Abstract

THE INVENTION RELATES TO A PROCESS FOR THE PRODUCTION OF PAPER WHICH COMPRISES (I) PROVIDING A MAIN AQUEOUS FLOW CONTAINING CELLULOSIC FIBRES: (II) INTRODUCING ONE OR MORE RETENTION COMPONENTS INTO THE MAIN AQUEOUS FLOW TO FORM A MAIN AQUEOUS FLOW CONTAINING ONE OR MORE RETENTION COMPONENTS; (III) PROVIDING A DILUTING AQUEOUS FLOW; (IV) INTRODUCING A LOW MOLECULAR WEIGHT CATIONIC ORGANIC POLYMER INTO THE DILUTING AQUEOUS FLOW TO FORM A DILUTING AQUEOUS FLOW CONTAINING A LOW MOLECULAR WEIGHT CATIONIC ORGANIC POLYMER, THE LOW MOLECULAR WEIGHT CATIONIC ORGANIC POLYMER HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT UP TO 5,000,000; (V) INTRODUCING THE DILUTING AQUEOUS FLOW CONTAINING A LOW MOLECULAR WEIGHT CATIONIC ORGANIC POLYMER INTO THE MAIN AQUEOUS FLOW CONTAINING ONE OR MORE RETENTION COMPONENTS TO FORM A RESULTING AQUEOUS FLOW; AND THEN (VII) EJECTING THE RESULTING AQUEOUS FLOW ONTO A WIRE AND DEWATERING THE RESULTING AQUEOUS FLOW TO FORM A WEB OF PAPER. THE INVENTION FURTHER RELATES TO A PROCESS FOR THE PRODUCTION OF PAPER ON A PAPER MACHINE CONTAINING A DILUTION HEADBOX WHICH COMPRISES (I) INTRODUCING ONE OR MORE RETENTION COMPONENTS INTO A MAIN AQUEOUS FLOW CONTAINING CELLULOSIC FIBRES, AND FEEDING THE OBTAINED MAIN AQUEOUS FLOW INTO THE DILUTION HEADBOX; (II) INTRODUCING LOW MOLECULAR WEIGHT CATIONIC ORGANIC POLYMER HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT UP TO 5,000,000 INTO A DILUTING AQUEOUS FLOW AND FEEDING THE OBTAINED DILUTING AQUEOUS FLOW INTO THE DILUTION HEADBOX; (III) MIXING THE OBTAINED MAIN AQUEOUS FLOW WITH THE OBTAINED DILUTING AQUEOUS FLOW IN THE HEADBOX TO FORM A RESULTING AQUEOUS FLOW; AND (IV) EJECTING THE RESULTING AQUEOUS FLOW ONTO A WIRE AND DEWATERING THE RESULTING AQUEOUS FLOW TO FORM A WEB OF PAPER. THE INVENTION ALSO RELATES TO A PROCESS FOR THE PRODUCTION OF PAPER FROM AN AQUEOUS SUSPENSION CONTAINING CELLULOSIC FIBRES, AND OPTIONAL FILLER, WHICH COMPRISES INTRODUCING ONE OR MORE RETENTION COMPONENTS INTO THE SUSPENSION FOLLOWED BY INTRODUCING INTO THE SUSPENSION A LOW MOLECULAR WEIGHT CATIONIC ORGANIC POLYMER HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT UP TO 5,000,000,AND THEN FORMING AND DRAINING THE SUSPENSION ON A WIRE.
MYPI20041682 2003-05-09 2004-05-06 A process for the production of paper MY136417A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46901003P 2003-05-09 2003-05-09
EP03445057 2003-05-14

Publications (1)

Publication Number Publication Date
MY136417A true MY136417A (en) 2008-09-30

Family

ID=33477655

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20041682 MY136417A (en) 2003-05-09 2004-05-06 A process for the production of paper

Country Status (3)

Country Link
KR (1) KR20060009008A (en)
MY (1) MY136417A (en)
NO (1) NO20055827L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2695182C1 (en) * 2015-06-23 2019-07-22 Кемира Ойй Method of controlling hydrophobic particles in an aqueous medium when producing paper or cardboard

Also Published As

Publication number Publication date
NO20055827L (en) 2006-02-09
NO20055827D0 (en) 2005-12-08
KR20060009008A (en) 2006-01-27

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