CA2021559A1 - Process for the whitening of paper coating compositions and also whitener preparations for this process - Google Patents

Process for the whitening of paper coating compositions and also whitener preparations for this process

Info

Publication number
CA2021559A1
CA2021559A1 CA002021559A CA2021559A CA2021559A1 CA 2021559 A1 CA2021559 A1 CA 2021559A1 CA 002021559 A CA002021559 A CA 002021559A CA 2021559 A CA2021559 A CA 2021559A CA 2021559 A1 CA2021559 A1 CA 2021559A1
Authority
CA
Canada
Prior art keywords
whitener
parts
cellulose powder
optical brightener
amino
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.)
Abandoned
Application number
CA002021559A
Other languages
English (en)
French (fr)
Inventor
Joachim Konig
Werner Bieber
Bernhard Hunke
Friedhelm Muller
Jochen Krusemann
Ulrich Schussler
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.)
Bayer AG
Original Assignee
Bayer AG
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
Priority claimed from DE19893924051 external-priority patent/DE3924051A1/de
Application filed by Bayer AG filed Critical Bayer AG
Publication of CA2021559A1 publication Critical patent/CA2021559A1/en
Abandoned 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/42—Coatings with pigments characterised by the pigments at least partly organic
    • 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
    • D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching

Landscapes

  • Paper (AREA)
CA002021559A 1989-07-21 1990-07-19 Process for the whitening of paper coating compositions and also whitener preparations for this process Abandoned CA2021559A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19893924051 DE3924051A1 (de) 1989-07-21 1989-07-21 Verfahren zum weisstoenen von papierstreichmassen
DEP3924051.7 1989-07-21
DEP3938690.2 1989-11-22
DE3938690 1989-11-22

Publications (1)

Publication Number Publication Date
CA2021559A1 true CA2021559A1 (en) 1991-01-22

Family

ID=25883227

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002021559A Abandoned CA2021559A1 (en) 1989-07-21 1990-07-19 Process for the whitening of paper coating compositions and also whitener preparations for this process

Country Status (5)

Country Link
EP (1) EP0409028A1 (no)
JP (1) JPH0359192A (no)
CA (1) CA2021559A1 (no)
FI (1) FI903648A0 (no)
NO (1) NO903004L (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10781314B2 (en) 2015-11-30 2020-09-22 Anomera Inc. Cellulose-based organic pigments
US20220306875A1 (en) * 2021-03-29 2022-09-29 Micro Powders, Inc. Biodegradable Cellulosic Powders

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9101965D0 (en) * 1991-01-30 1991-03-13 Sandoz Ltd Improvements in or relating to organic compounds
JPH0832997B2 (ja) * 1991-09-20 1996-03-29 日清紡績株式会社 セルロース微粉体を用いた塗工紙
DE4202598C1 (no) * 1992-01-30 1993-09-02 Stora Feldmuehle Ag, 4000 Duesseldorf, De
DE19500195A1 (de) * 1995-01-05 1996-07-11 Bayer Ag Verwendung weißgetönter Kunststoffe zum Weißtönen von Papierstreichmassen und derart weißgetönte Papierstreichmassen
DE19945580C5 (de) 1999-09-23 2007-03-15 Stora Enso Publication Paper Gmbh & Co. Kg Gestrichenes, optisch aufgehelltes Druckpapier und Verfahren zu dessen Herstellung
JP4841263B2 (ja) * 2006-02-21 2011-12-21 日本化薬株式会社 蛍光増白剤水性液状組成物及びそれを用いた蛍光増白方法
EP2799618B1 (en) * 2013-04-29 2016-04-27 Blankophor GmbH & Co. KG Use of micronized cellulose and fluorescent whitening agent for surface treatment of cellulosic materials

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE568156A (no) * 1957-06-06
US3157518A (en) * 1960-02-23 1964-11-17 Fmc Corp Coatings of cellulose crystallite aggregates
DE3643215A1 (de) * 1986-12-18 1988-06-30 Bayer Ag Weisstoenerhaltige papierstreichmassen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10781314B2 (en) 2015-11-30 2020-09-22 Anomera Inc. Cellulose-based organic pigments
US20220306875A1 (en) * 2021-03-29 2022-09-29 Micro Powders, Inc. Biodegradable Cellulosic Powders

Also Published As

Publication number Publication date
NO903004D0 (no) 1990-07-05
JPH0359192A (ja) 1991-03-14
EP0409028A1 (de) 1991-01-23
FI903648A0 (fi) 1990-07-19
NO903004L (no) 1991-01-22

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Legal Events

Date Code Title Description
FZDE Discontinued