CH210529A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH210529A
CH210529A CH210529DA CH210529A CH 210529 A CH210529 A CH 210529A CH 210529D A CH210529D A CH 210529DA CH 210529 A CH210529 A CH 210529A
Authority
CH
Switzerland
Prior art keywords
vat dye
production
violet
dye
diphenylazodiphenyl
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 CH210529A publication Critical patent/CH210529A/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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/32—Preparation of azo dyes from other azo compounds by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines; by reacting keto-groups with amines
    • C09B43/36—Preparation of azo dyes from other azo compounds by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines; by reacting keto-groups with amines with amino-anthracene or amino-anthraquinone dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines     Küpenfarbstoffes.       Vorliegendes Patent bezieht     sieh    auf ein  Verfahren zur Herstellung eines     Küpenfarb-          stoffes,        dadurch        ,gekennzeichnet,    dass man       2-Amino-l-merkapto-anthrachinon    mit einem       Diphenylazodiphenyl    -4 .     4'-dicarbonsäure-@di-          ha.lid    im     Molekularverhältnis    2 : 1 konden  siert.  



  Der so erhaltene neue Farbstoff löst sich  in konzentrierter Schwefelsäure mit violett  stichig     roter    Farbe und färbt Baumwolle  aus     violettroter        Küpe    in sehr echten gelben  Tönen.  



  <I>Beispiel:</I>  Zu einer     Suspension    von 2,8 Teilen  des     Natriumsalzes    des     2-Amino-l-merkapto-          anthrachinons    in etwa 800 Teilen     Nitroben-          zol    gibt man 23 Teile     Diphenylazodiphenyl-          4.        4'-dicarbonsäuredichlorid.    Nach etwa drei  stündigem Rühren bei     Zimmertemperatur       lässt man das Gemisch noch etwa 8     ;Stunden     unter     Rückfluss    kochen     und    saugt noch  warm ab.



  Process for the production of a vat dye. The present patent relates to a process for producing a vat dye, characterized in that 2-amino-1-mercapto-anthraquinone is mixed with a diphenylazodiphenyl -4. 4'-dicarboxylic acid @ di- ha.lid condensed in a molecular ratio of 2: 1.



  The new dye obtained in this way dissolves in concentrated sulfuric acid with a violet-tinged red color and dyes cotton from a purple-red vat in very real yellow tones.



  <I> Example: </I> 23 parts of diphenylazodiphenyl-4,4'-dicarboxylic acid dichloride are added to a suspension of 2.8 parts of the sodium salt of 2-amino-1-mercapto-anthraquinone in about 800 parts of nitrobenzene. After stirring for about three hours at room temperature, the mixture is allowed to reflux for about 8 hours and is suctioned off while still warm.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, .dass man 2-Amino-l-merkapto-anthrachinon mit einem Diphenylazodiphenyl-4.4'-dicarbon- säuredihalid im Molekularverhältnis 2:1 kondensiert. Der so erhaltene neue Farbstoff löst sich in konzentrierter Schwefelsäure mit violett- c@tichig roter Farbe und färbt Baumwolle aus violettroter güpe in sehr echten gelben Tönen. PATENT CLAIM: A process for producing a vat dye, characterized in that 2-amino-1-mercapto-anthraquinone is condensed with a diphenylazodiphenyl-4,4'-dicarboxylic acid dihalide in a molecular ratio of 2: 1. The new dye obtained in this way dissolves in concentrated sulfuric acid with a violet-tinged red color and dyes cotton of violet-red güpe in very real yellow tones.
CH210529D 1937-05-29 1938-05-18 Process for the production of a vat dye. CH210529A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE210529X 1937-05-29
CH206180T 1938-05-18

Publications (1)

Publication Number Publication Date
CH210529A true CH210529A (en) 1940-07-15

Family

ID=25724281

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210529D CH210529A (en) 1937-05-29 1938-05-18 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH210529A (en)

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