CH192979A - Process for the preparation of an azo dye which is capable of forming metal compounds. - Google Patents

Process for the preparation of an azo dye which is capable of forming metal compounds.

Info

Publication number
CH192979A
CH192979A CH192979DA CH192979A CH 192979 A CH192979 A CH 192979A CH 192979D A CH192979D A CH 192979DA CH 192979 A CH192979 A CH 192979A
Authority
CH
Switzerland
Prior art keywords
dye
forming metal
azo dye
metal compounds
acid
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH192979A publication Critical patent/CH192979A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/08—Disazo dyes from a coupling component "C" containing directive hydroxyl and amino groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>188320.</B>    Verfahren zur Herstellung eines     Azofarbstoffes,    der zur Bildung von       31etallverbindungen    befähigt ist.    Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Azofarb-          stoffes,    der zur Bildung von Metallverbin  dungen befähigt ist, dadurch gekennzeich  net,"     dass    man     2-Naplithylamin-8-sulfosäure          diazotiert,    mit     4-Amino-aziminobenzol    kup  pelt,

   den erhaltenen     Aminoazofarbstoff    wei  ter     Jiazotiert    und mit     2-Phenylamino-ä-          napht,hol-7-suliosäure    kuppelt.  



  Der so erhaltene Farbstoff hat in Form  seiner     Kupferkomplexverbindung    ein dunkles  .Äusseres, löst sich in Wasser violett und in  konzentrierter Schwefelsäure hellblau. Er  zieht auf Baumwolle in graublauen Tönen  kräftig auf,     während,der        ungekupferte    Farb  stoff ein Violett ist.  



  <I>Beispiel:</I>  24,5 Teile     2#-naphthylamin-8-sulfosaures     Natrium werden bei<B>0<I>'</I> C</B> mit Salzsäure und  <B>6,9</B> Teilen     Natriumnitrit,diazotiert.    Darauf-    hin     lässt    man die     Diazolösung    einlaufen in  eine salzsaure Lösung von 13,4 Teilen     4-          Amin,o-aziminobenzol    und     rülirt    bis zur Be  endigung der Kupplung.

   Dann salzt man  den     Aminoazofarbstoff    aus, filtriert und löst  ihn mit einer verdünnten     Sodalösung.    Dann  kühlt man ab, versetzt die Lösung mit<B>6,9</B>  Teilen     Natriumnitrit    und     lässt    die     Verbin-          #dung    in Salzsäure einlaufen, welche mit ge  nügend Eis vermengt ist. Nach kurzer Zeit  ist die     Weiterdiazotierung    beendet.

   Nun       lässt    man die     Diazoverbindung    in eine     soda-          alkalische    Lösung von 34 Teilen     2-Phenyl-          amino-,5-naplithol-7-sulfosäur,e    einlaufen. Der       Disazofarbstoff    wird dann durch Anwärmen  in Lösung gebracht, durch Zugabe von Salz  gefällt,     abfiltriert    und     Jurcli    Auswaschen  gereinigt.



  Additional patent to main patent no. <B> 188320. </B> Process for the production of an azo dye which is capable of forming metal compounds. The present patent relates to a process for the production of an azo dye which is capable of forming metal compounds, characterized in that "2-naplithylamine-8-sulfonic acid is diazotized with 4-amino-aziminobenzene,

   the aminoazo dye obtained is further jiazotized and coupled with 2-phenylamino-a- naphtha, hol-7-sulioic acid.



  The dye thus obtained has a dark appearance in the form of its copper complex compound, dissolves violet in water and light blue in concentrated sulfuric acid. It pulls heavily on cotton in gray-blue tones, while the unplated dye is a violet.



  <I> Example: </I> 24.5 parts of 2 # -naphthylamine-8-sulfonic acid sodium are added at <B> 0 <I> '</I> C </B> with hydrochloric acid and <B> 6.9 </B> Parts of sodium nitrite, diazotized. The diazo solution is then allowed to run into a hydrochloric acid solution of 13.4 parts of 4-amine, o-aziminobenzene and stirred until the coupling is complete.

   Then the aminoazo dye is salted out, filtered and dissolved with a dilute soda solution. It is then cooled, the solution is mixed with 6.9 parts of sodium nitrite and the compound is allowed to run into hydrochloric acid, which is mixed with sufficient ice. The further diazotization is complete after a short time.

   The diazo compound is now allowed to run into a soda-alkaline solution of 34 parts of 2-phenylamino, 5-naplithol-7-sulfonic acid. The disazo dye is then brought into solution by heating, precipitated by adding salt, filtered off and Jurcli rinsing is purified.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Azofarb- stoffes, der zur Bildung von Metallyerbin- dungen befähigt ist, dadurch gekennzeich net, dass man 2-Naphthylamin-8-suliosäure diazotiert, mit 4-Amino-aziminobenzol kup pelt, den erhaltenen Aminoazofarbstoff wei ter diazotiert und mit 2-Plienylamino-5-naph- thol-7-suliosäure kuppelt. PATENT CLAIM: Process for the production of an azo dye which is capable of forming metal ally bonds, characterized in that 2-naphthylamine-8-sulioic acid is diazotized, coupled with 4-amino-aziminobenzene, and the resulting aminoazo dye is further diazotized and couples with 2-plienylamino-5-naphthol-7-sulioic acid. Der so erhaltene Farbstoff hat in Form seiner Kupferkomplexverbin-dung #in dunkles .Äusseres, löst sich in Wasser -violett und in konzentrierter Schwefelsäure hellblau. Er zieht auf Baumwolle in graublauen Tönen kräftig auf, währendder ungekupferte Farb stoff ein Violett ist. The dye obtained in this way has a dark exterior in the form of its copper complex compound, dissolves in water-violet and in concentrated sulfuric acid light blue. It pulls heavily on cotton in gray-blue tones, while the uncoppered dye is a purple.
CH192979D 1935-01-04 1935-12-18 Process for the preparation of an azo dye which is capable of forming metal compounds. CH192979A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE192979X 1935-01-04
CH188320T 1935-12-18

Publications (1)

Publication Number Publication Date
CH192979A true CH192979A (en) 1937-09-15

Family

ID=25721628

Family Applications (1)

Application Number Title Priority Date Filing Date
CH192979D CH192979A (en) 1935-01-04 1935-12-18 Process for the preparation of an azo dye which is capable of forming metal compounds.

Country Status (1)

Country Link
CH (1) CH192979A (en)

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