FR2528461A1 - Procede de preparation de papier azure - Google Patents

Procede de preparation de papier azure Download PDF

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Publication number
FR2528461A1
FR2528461A1 FR8309381A FR8309381A FR2528461A1 FR 2528461 A1 FR2528461 A1 FR 2528461A1 FR 8309381 A FR8309381 A FR 8309381A FR 8309381 A FR8309381 A FR 8309381A FR 2528461 A1 FR2528461 A1 FR 2528461A1
Authority
FR
France
Prior art keywords
formula
paper
hydrogen
compound
process according
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.)
Granted
Application number
FR8309381A
Other languages
English (en)
French (fr)
Other versions
FR2528461B1 (OSRAM
Inventor
John Stuart Cowman
Peter Stuart Littlewood
Stephen John O'neil
Roger Paver
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.)
Sandoz AG
Original Assignee
Sandoz 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
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of FR2528461A1 publication Critical patent/FR2528461A1/fr
Application granted granted Critical
Publication of FR2528461B1 publication Critical patent/FR2528461B1/fr
Granted 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
    • 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
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers

Landscapes

  • Paper (AREA)
FR8309381A 1982-06-09 1983-06-03 Procede de preparation de papier azure Granted FR2528461A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8216697 1982-06-09

Publications (2)

Publication Number Publication Date
FR2528461A1 true FR2528461A1 (fr) 1983-12-16
FR2528461B1 FR2528461B1 (OSRAM) 1985-05-03

Family

ID=10530905

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8309381A Granted FR2528461A1 (fr) 1982-06-09 1983-06-03 Procede de preparation de papier azure

Country Status (6)

Country Link
JP (1) JPS5915598A (OSRAM)
BR (1) BR8303043A (OSRAM)
DE (1) DE3319569A1 (OSRAM)
FR (1) FR2528461A1 (OSRAM)
GB (1) GB2122660B (OSRAM)
IT (1) IT1173720B (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964951A (en) * 1987-05-29 1990-10-23 Security Tag Systems, Inc. Process for making secure paper product
JP2608096B2 (ja) * 1988-04-18 1997-05-07 三菱製紙株式会社 写真用支持体

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025242A (en) * 1961-03-20 1962-03-13 Du Pont Whitening agent composition and process for its manufacture
DE1283083B (de) * 1961-12-08 1968-11-14 Bayer Ag Verfahren zur Herstellung von aufgehelltem Papier
FR2156750A1 (OSRAM) * 1971-10-20 1973-06-01 Hercules Powder Co Ltd
FR2348317A1 (fr) * 1976-04-14 1977-11-10 Ciba Geigy Ag Procede pour l'azurage optique du papier

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1594874C3 (de) * 1966-05-03 1975-04-03 Sandoz Ag, Basel (Schweiz) Verfahren zum optischen Aufhellen von Textilien aus synthetischem Polyamid
GB1337583A (en) * 1970-03-24 1973-11-14 Ciba Geigy Uk Ltd Treatment of optical brightening agents

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025242A (en) * 1961-03-20 1962-03-13 Du Pont Whitening agent composition and process for its manufacture
DE1283083B (de) * 1961-12-08 1968-11-14 Bayer Ag Verfahren zur Herstellung von aufgehelltem Papier
FR2156750A1 (OSRAM) * 1971-10-20 1973-06-01 Hercules Powder Co Ltd
FR2348317A1 (fr) * 1976-04-14 1977-11-10 Ciba Geigy Ag Procede pour l'azurage optique du papier

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
RESEARCH DISCLOSURE, no. 203, mars 1981, Industrial Opportunities, HAMPSHIRE (GB) *
TAPPI JOURNAL OF THE TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY, vol. 64, no. 7, juillet 1981, ATLANTA, Georgia (US) *

Also Published As

Publication number Publication date
IT1173720B (it) 1987-06-24
GB2122660B (en) 1985-12-18
DE3319569A1 (de) 1983-12-15
FR2528461B1 (OSRAM) 1985-05-03
BR8303043A (pt) 1984-01-31
IT8348464A0 (it) 1983-06-09
IT8348464A1 (it) 1984-12-09
GB2122660A (en) 1984-01-18
JPS5915598A (ja) 1984-01-26
GB8315573D0 (en) 1983-07-13

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Legal Events

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ST Notification of lapse