CH261057A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

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Publication number
CH261057A
CH261057A CH261057DA CH261057A CH 261057 A CH261057 A CH 261057A CH 261057D A CH261057D A CH 261057DA CH 261057 A CH261057 A CH 261057A
Authority
CH
Switzerland
Prior art keywords
dye
red
parts
sides
pyrazolone
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH261057A publication Critical patent/CH261057A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/50Tetrazo dyes
    • C09B35/52Tetrazo dyes of the type

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 257110.    Verfahren zur Herstellung eines     Polyazofarbatoffes.       Es wurde gefunden, dass ein     Polyazofarb-          stoff    hergestellt werden kann, wenn man     tetra-          zotiertes        3,3'-Dioxy-4,4'-diaminodiphenyl    beid  seitig mit     1-(5'-Oxynaphthyl-2')-3-methyl-5-          pyrazolon-7'-sulfonsäure    kuppelt und den ent  standenen     Disazofarbstoff    beidseitig mit di  anotierter     Anthranilsäure    vereinigt.  



  Der neue Farbstoff stellt ein dunkles Pul  ver dar, das sich in Wasser und verdünnten       Ätzalkalien    mit roter, in verdünnter Soda  lösung mit bordeauxroter und in konzentrier  ter Schwefelsäure mit rubinroter Farbe löst  und Baumwolle nach dem ein- oder     zwei-          badigen        Nachkupferungsverfahren    in echten       braunstiehigen    Bordeauxtönen färbt.  



       3,3'-Dioxy-4,4'-        diaminodiphenyl    kann bei  spielsweise durch Verseifen von     Dianisidin     mit Aluminiumchlorid erhalten werden und  wird in üblicher Weise     tetrazotiert.    Die beid  seitige Kupplung der     Tetrazoverbindung    mit  dem     Pyrazolonderivat    soll so vorgenommen.  werden, dass Kupplung im     Pyrazolonkern    er  folgt. Dies kann mit Vorteil so erreicht wer  den, dass man     zuerst    in schwach alkalischem  Medium, z. B. in Gegenwart von Natrium  karbonat, arbeitet und die Kupplung erst  nach einiger Zeit durch Zugabe von Ätz  alkalien zu Ende führt.

   Der so erhaltene     Dis-          azofarbstoff    wird vorteilhaft vor der Weiter  verarbeitung abgeschieden. Die Kupplung mit  dianotierter     Anthranilsäure    kann in üblicher  Weise, z. B. in     natriumkarbonatalkalischem     Medium, vorgenommen werden.

      <I>Beispiel:</I>    Eine aus 4,32 Teilen     3,3'-Dioxy-4,4'-di-          aminodiphenyl,    10 Raumteilen     300 ,'iger    Salz  säure und 200 Teilen Wasser mit 2,76 Teilen       Natriumnitrit    hergestellte     Tetrazolösung    wird       reit    einer Lösung von 12,8 Teilen     1-(5'-Oxy-          n        aphthyl    - 2') - 3 -     methyl-5-pyrazolon-7'-sulfon-          säure    und 15 Teilen Natriumkarbonat in 200  Teilen Wasser 24 Stunden bei 12-15  ge  rührt,

   nach Zusatz von 20 Raumteilen  30 j     iger    Natronlauge weitere 24 Stunden bei  gewöhnlicher Temperatur gerührt. Hierauf  werden 20 Raumteile 30      %o        iger    Salzsäure zu  gegeben und der ausgeschiedene Farbstoff       abgesaugt.    Das     tetrazotierte        3,3'-Dioxy-4,4'-di-          aminodiphenyl    kuppelt unter diesen Umstän  den nur in den     Pyrazolonring.    Der     Disazo-          farbstoff    wird     mit    10 Teilen Natriumkar  bonat in 200 Teilen Wasser gelöst und bei 5  bis 10  mit der     Diazolösung    aus 5,

  48g     An-          thranilsäure    gekuppelt. Nach 24stündigem  Rühren bei gewöhnlicher Temperatur wird  der Farbstoff     ausgesalzen.  



  <B> Additional patent </B> to main patent no. 257110. Process for the production of a polyazo carbate. It has been found that a polyazo dye can be produced if tetrazotized 3,3'-dioxy-4,4'-diaminodiphenyl is mixed with 1- (5'-oxynaphthyl-2 ') -3-methyl- 5-pyrazolone-7'-sulfonic acid is coupled and the disazo dye formed is combined on both sides with di anotized anthranilic acid.



  The new dye is a dark powder that dissolves in water and dilute caustic alkalis with red, in dilute soda solution with burgundy red and in concentrated sulfuric acid with a ruby red color, and cotton in real brownish bordeaux tones using the one or two-bath re-coppering process colors.



       3,3'-Dioxy-4,4'-diaminodiphenyl can be obtained, for example, by saponifying dianisidine with aluminum chloride and is tetrazotized in the usual way. The two-sided coupling of the tetrazo compound with the pyrazolone derivative should be carried out in this way. that coupling in the pyrazolone nucleus he follows. This can be achieved with advantage so who the first in a weakly alkaline medium, eg. B. in the presence of sodium carbonate, works and the coupling leads to an end only after some time by adding caustic alkalis.

   The disazo dye thus obtained is advantageously deposited before further processing. The coupling with dianotized anthranilic acid can be carried out in a conventional manner, for. B. in sodium carbonate-alkaline medium.

      <I> Example: </I> A prepared from 4.32 parts of 3,3'-dioxy-4,4'-di-aminodiphenyl, 10 parts by volume of 300% hydrochloric acid and 200 parts of water with 2.76 parts of sodium nitrite Tetrazo solution is added to a solution of 12.8 parts of 1- (5'-oxynaphthyl - 2 ') - 3 - methyl-5-pyrazolone-7'-sulfonic acid and 15 parts of sodium carbonate in 200 parts of water for 24 hours 12-15 stirred,

   after addition of 20 parts by volume of 30% sodium hydroxide solution, the mixture was stirred for a further 24 hours at ordinary temperature. Then 20 parts by volume of 30% strength hydrochloric acid are added and the dye which has separated out is filtered off with suction. The tetrazotized 3,3'-dioxy-4,4'-di-aminodiphenyl only couples into the pyrazolone ring under these circumstances. The disazo dye is dissolved with 10 parts of sodium carbonate in 200 parts of water and at 5 to 10 with the diazo solution from 5,

  48g of anthranilic acid coupled. After stirring for 24 hours at ordinary temperature, the dye is salted out.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Poly- azofarbstoffes, dadurch gekennzeichnet, dass man tetrazotiertes 3,3'-Dioxy-4,4'-diaminodi- phenyl beidseitig mit 1-(5'-Oxynaphthyl-2')-3- methyl-5-pyrazolon-7'-sulfonsäure kuppelt und den entstandenen Disazofarbstoff beidseitig mit dianotierter Anthranilsäure vereinigt. PATENT CLAIM: Process for the production of a polyazo dye, characterized in that tetrazotized 3,3'-dioxy-4,4'-diaminodiphenyl is mixed with 1- (5'-oxynaphthyl-2 ') -3-methyl-5 on both sides -pyrazolone-7'-sulfonic acid couples and the resulting disazo dye is combined on both sides with dianotized anthranilic acid. Der neue Farbstoff stellt ein dunkles Pul ver dar, das sich in Wasser und verdünnten Ätzalkalien mit roter, in verdünnter Soda lösung mit bordeauxroter und in konzentrier ter Schwefelsäure mit rubinroter Farbe löst und Baumwolle nach dem ein- oder zwei badigen Nachkupferungsverfahren in echten braunstichigen Bordeauxtönen färbt. The new dye is a dark powder that dissolves in water and dilute caustic alkalis with red, in dilute soda solution with burgundy red and in concentrated sulfuric acid with a ruby red color and dyes cotton in real brownish bordeaux tones using the one or two-bath re-coppering process .
CH261057D 1941-02-18 1941-02-18 Process for the preparation of a polyazo dye. CH261057A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261057T 1941-02-18
CH257110T 1942-02-05

Publications (1)

Publication Number Publication Date
CH261057A true CH261057A (en) 1949-04-15

Family

ID=25730023

Family Applications (1)

Application Number Title Priority Date Filing Date
CH261057D CH261057A (en) 1941-02-18 1941-02-18 Process for the preparation of a polyazo dye.

Country Status (1)

Country Link
CH (1) CH261057A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7951235B2 (en) 2005-08-08 2011-05-31 Fujifilm Imaging Colorants Limited Black azo dyes and their use in ink jet printing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7951235B2 (en) 2005-08-08 2011-05-31 Fujifilm Imaging Colorants Limited Black azo dyes and their use in ink jet printing

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