CH187351A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH187351A
CH187351A CH187351DA CH187351A CH 187351 A CH187351 A CH 187351A CH 187351D A CH187351D A CH 187351DA CH 187351 A CH187351 A CH 187351A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
new
red
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH187351A publication Critical patent/CH187351A/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
    • C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
    • C09B31/075—Disazo dyes from a coupling component "C" containing a directive hydroxyl group ortho-Hydroxy carboxylic acid amides

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 185146.    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man     diazotiertes          4-Amino-5-äthoxy-ss-oxmethyl-1,1'-azobenzol     mit dem     p-Anisidid    der     2.3-Oxynaphthoe-          säure    vereinigt. Der neue     Farbstoff    stellt  einen rotvioletten Niederschlag dar.

   Auf ge  eigneten Substraten, wie zum Beispiel Baum  wolle, hergestellt, färbt er diese in rotviolet  ten Tönen mit     vortrefflichen        Echtbeitseigen-          schaften.     



  <I>Beispiel:</I>  27,1 Teile     4-Amino-5-äthoxy-p-oxmethyl-          1,1'-azobenzol    werden wie üblich     diazotiert     und in eine Lösung von 29,3 Teilen     2,3-          Oxynaphthoesäure-4'-methoxyanilid,    50 Tei  len 30     0%iger    Natronlauge, 30 Teilen Soda  und 2000 Teilen Wasser eingetragen. Der    gebildete     Farbstoff    fällt sofort aus. Der rot  violette Niederschlag wird filtriert und ge  trocknet.



      Additional patent to main patent No. 185146. Process for the production of a new azo dye. It has been found that a new azo dye is obtained if diazotized 4-amino-5-ethoxy-ß-oxmethyl-1,1'-azobenzene is combined with the p-anisidide of 2,3-oxynaphthoic acid. The new dye is a red-violet precipitate.

   Produced on suitable substrates such as cotton, he dyes them in red-violet tones with excellent real working properties.



  <I> Example: </I> 27.1 parts of 4-amino-5-ethoxy-p-oxmethyl-1,1'-azobenzene are diazotized as usual and dissolved in a solution of 29.3 parts of 2,3-oxynaphthoic acid 4'-methoxyanilide, 50 parts of 30 0% sodium hydroxide solution, 30 parts of soda and 2000 parts of water entered. The dye formed precipitates immediately. The red purple precipitate is filtered and dried ge.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 4-Amirro-5-äthoxy-p-oxme- thyl-1,1-azobenzol mit dem 4-Methoxyanilid der 2 . 3 - Oxynaphthoesäure vereinigt. Der neue Farbstoff stellt einen rotvioletten Nie derschlag dar. Auf geeigneten Substraten, wie zum Beispiel Baumwolle, hergestellt, färbt er diese in rotvioletten Tönen mit vortreff lichen Echtheitseigenschaften. PATENT CLAIM: A process for the production of a new azo dye, characterized in that diazotized 4-amirro-5-ethoxy-p-oxmethyl-1,1-azobenzene is mixed with the 4-methoxyanilide of the 2nd 3 - oxynaphthoic acid combined. The new dye is a red-violet precipitate. Produced on suitable substrates, such as cotton, it dyes them in red-violet shades with excellent fastness properties.
CH187351D 1935-05-22 1935-05-22 Process for the production of a new azo dye. CH187351A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH185146T 1935-05-22
CH187351T 1935-05-22

Publications (1)

Publication Number Publication Date
CH187351A true CH187351A (en) 1936-10-31

Family

ID=25721154

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187351D CH187351A (en) 1935-05-22 1935-05-22 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH187351A (en)

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