CH210531A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH210531A
CH210531A CH210531DA CH210531A CH 210531 A CH210531 A CH 210531A CH 210531D A CH210531D A CH 210531DA CH 210531 A CH210531 A CH 210531A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
dye
vat
bromoanthraquinone
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 CH210531A publication Critical patent/CH210531A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr. 206180.    Verfahren zur Herstellung eines     ILüpenfarbstoües.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Küpenfarb-          stoffes,    :dadurch gekennzeichnet, dass man       1-Methylamino    - 2 -     amino-3-bromanthrachinon     mit einem     Azobenzol-4.4'-.dicarbonsäure-          dihalid    im     Molekularverhältnis    2 : 1 konden  siert.  



  Der so erhaltene neue Farbstoff löst sieh  in konzentrierter Schwefelsäure mit     ,gelber     Farbe und färbt     Baumwolle    aus rötlicher       Küpe    in sehr echten gelben Tönen.  



  <I>Beispiel:</I>  Zu einer     Lösung    von 34 Teilen     1-Me-          thylamino    - 2 -     amino    = 3     -bromanthrachinon    in  300 Teilen     Trichlorbenzol    .gibt man unter  Rühren bei etwa 160   C<B>16</B> Teile     Azabenzol-          4.4'-dicarbonsäuredichlorid    und     lässt    etwa    8 Stunden unter     Rückflusskühlung    kochen.  Das bereits in der Wärme ausgefallene Kon  densationsprodukt     wird        abgesawgt    und ge  waschen.



  <B> Additional patent </B> to the main patent no. 206180. Process for the production of an Ipain dye. The present patent relates to a process for the production of a vat dye, characterized in that 1-methylamino-2-amino-3-bromoanthraquinone is condensed with an azobenzene-4,4′-dicarboxylic acid dihalide in a molecular ratio of 2: 1.



  The new dye thus obtained dissolves in concentrated sulfuric acid with a yellow color and dyes cotton from a reddish vat in very real yellow tones.



  <I> Example: </I> To a solution of 34 parts of 1-methylamino-2-amino = 3-bromoanthraquinone in 300 parts of trichlorobenzene, 16 parts are added with stirring at about 160 ° C. Azabenzene-4,4'-dicarboxylic acid dichloride and let boil under reflux for about 8 hours. The condensation product, which has already precipitated in the heat, is sawed off and washed.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes,dadurch gekennzeichnet, dass man 1-Methylamino - 2 - amino-3-bromanthrachinon mit einem Azobenzol-4.4'-@dicarbonsäure- dihalid im Molekularverhältnis 2 : 1 konden siert. Der so erhaltene neue Farbstoff löst sich in konzentrierter ,Schwefelsäure mit gelber Farbe und, färbt Baumwolle aus rötlicher güpe in sehr echten ,gelben Tönen. PATENT CLAIM: Process for producing a vat dye, characterized in that 1-methylamino-2-amino-3-bromoanthraquinone is condensed with an azobenzene-4.4'-@dicarboxylic acid dihalide in a molecular ratio of 2: 1. The new dye thus obtained dissolves in concentrated sulfuric acid with a yellow color and dyes cotton from reddish güpe in very genuine, yellow tones.
CH210531D 1937-05-29 1938-05-18 Process for the production of a vat dye. CH210531A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE210531X 1937-05-29
CH206180T 1938-05-18

Publications (1)

Publication Number Publication Date
CH210531A true CH210531A (en) 1940-07-15

Family

ID=25724282

Family Applications (1)

Application Number Title Priority Date Filing Date
CH210531D CH210531A (en) 1937-05-29 1938-05-18 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH210531A (en)

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