DE69100499T2 - Process for making paper. - Google Patents

Process for making paper.

Info

Publication number
DE69100499T2
DE69100499T2 DE91850148T DE69100499T DE69100499T2 DE 69100499 T2 DE69100499 T2 DE 69100499T2 DE 91850148 T DE91850148 T DE 91850148T DE 69100499 T DE69100499 T DE 69100499T DE 69100499 T2 DE69100499 T2 DE 69100499T2
Authority
DE
Germany
Prior art keywords
resin
wet strength
making paper
paper
improved
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE91850148T
Other languages
German (de)
Other versions
DE69100499D1 (en
Inventor
Ulla Helmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nouryon Pulp and Performance Chemicals AB
Original Assignee
Eka Nobel 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 Eka Nobel AB filed Critical Eka Nobel AB
Application granted granted Critical
Publication of DE69100499D1 publication Critical patent/DE69100499D1/en
Publication of DE69100499T2 publication Critical patent/DE69100499T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • 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
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/14—Controlling the addition by selecting point of addition or time of contact between components

Abstract

A process for the production of wet strength paper using a polyamine or polyamideamine resin modified with cross-linking agent. The wet strength resin is added at a lower pH of the stock and the pH of the wet web is then increased before the drying whereby improved retention of the resin and improved wet strength of the produced paper are obtained.
DE91850148T 1990-06-20 1991-05-30 Process for making paper. Expired - Fee Related DE69100499T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9002204A SE500454C2 (en) 1990-06-20 1990-06-20 Methods for making wet-strong paper

Publications (2)

Publication Number Publication Date
DE69100499D1 DE69100499D1 (en) 1993-11-18
DE69100499T2 true DE69100499T2 (en) 1994-02-03

Family

ID=20379829

Family Applications (1)

Application Number Title Priority Date Filing Date
DE91850148T Expired - Fee Related DE69100499T2 (en) 1990-06-20 1991-05-30 Process for making paper.

Country Status (4)

Country Link
EP (1) EP0462953B1 (en)
AT (1) ATE95862T1 (en)
DE (1) DE69100499T2 (en)
SE (1) SE500454C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6919111B2 (en) 1997-02-26 2005-07-19 Fort James Corporation Coated paperboards and paperboard containers having improved tactile and bulk insulation properties
US6740373B1 (en) 1997-02-26 2004-05-25 Fort James Corporation Coated paperboards and paperboard containers having improved tactile and bulk insulation properties

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH632546A5 (en) * 1977-08-26 1982-10-15 Ciba Geigy Ag METHOD FOR PRODUCING SIZED PAPER OR CARDBOARD USING POLYELECTROLYTE AND SALTS OF EPOXYD-AMINE-POLYAMINOAMIDE IMPLEMENTATION PRODUCTS.

Also Published As

Publication number Publication date
ATE95862T1 (en) 1993-10-15
EP0462953A1 (en) 1991-12-27
DE69100499D1 (en) 1993-11-18
EP0462953B1 (en) 1993-10-13
SE500454C2 (en) 1994-06-27
SE9002204L (en) 1991-12-21
SE9002204D0 (en) 1990-06-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee