CH187346A - Process for the preparation of a new azo dye. - Google Patents

Process for the preparation of a new azo dye.

Info

Publication number
CH187346A
CH187346A CH187346DA CH187346A CH 187346 A CH187346 A CH 187346A CH 187346D A CH187346D A CH 187346DA CH 187346 A CH187346 A CH 187346A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
new azo
new
chloro
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 CH187346A publication Critical patent/CH187346A/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

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 185146.    Verfahren zur Herstellung     eines    neuen     Azofarbstoffs.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man     diazotiertes          4-Am        ir)o-2-chlor-5-äthoxy-        ss-oxmetbyl-4'-cblor-          1,1'-azobenzol    mit dem     p-Phecietidid    der     2.3-          Oxynaphthoesäure    vereinigt. Der neue Farb  stoff stellt einen violetten Niederschlag dar.

    Auf geeigneten Substraten, wie zum Beispiel  Baumwolle, bei-gestellt, färbt er diese in       granat-corinthen    Tönen mit vortrefflichen  Echtheitseigenschaften.    <I>Beispiel:</I>    34 Teile     4-Amino-2-chlor-5-äthoxy-p-ox-          methyl-4'-chlor-1.1'-azobenzol    werden wie  üblich     diazotiert    und in eine Lösung von  30,7 Teilen     2,3-Oxyriaphthoesäure-4'-äthoxy-          anilid,    50 Teilen     30o/oiger    Natronlauge, 30  Teilen Soda und 2000 Teilen Wasser einge-    tragen. Der gebildete Farbstoff fällt sofort  aus. Der violette Niederschlag wird filtriert  und getrocknet.



  <B> Additional patent </B> 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-Am ir) o-2-chloro-5-ethoxy-ss-oxmetbyl-4'-cblor-1,1'-azobenzene with the p-phecietidide of 2.3- oxynaphthoic acid combined. The new dye is a purple precipitate.

    On suitable substrates such as cotton, for example, he dyes them in garnet-corinth shades with excellent fastness properties. <I> Example: </I> 34 parts of 4-amino-2-chloro-5-ethoxy-p-ox-methyl-4'-chloro-1,1'-azobenzene are diazotized as usual and converted into a solution of 30.7 Parts of 2,3-oxyriaphthoic acid-4'-ethoxyanilide, 50 parts of 30% sodium hydroxide solution, 30 parts of soda and 2000 parts of water are introduced. The dye formed precipitates immediately. The purple precipitate is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 4-Amino-2-chlor-5-äthoxy-ss- oxcnethyl-4'-chlor-1,1'-azobenzol mit dem p- Phenetidid der 2.3-Oxynaphthoesäure ver einigt. Der neue Farbstoff stellt einen violetten Niederschlag dar. Auf geeigneten Substraten, wie zum Beispiel Baumwolle, hergestellt, färbt er diese in granat-corinthen Tönen mit vor trefflichen Echtheitseigenschaften. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that diazotized 4-amino-2-chloro-5-ethoxy-ss- oxynethyl-4'-chloro-1,1'-azobenzene is mixed with the p-phenetidide of 2.3 Oxynaphthoic acid united. The new dye represents a purple precipitate. Produced on suitable substrates, such as cotton, it dyes them in garnet-corinth shades with excellent fastness properties.
CH187346D 1935-05-22 1935-05-22 Process for the preparation of a new azo dye. CH187346A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH185146T 1935-05-22
CH187346T 1935-05-22

Publications (1)

Publication Number Publication Date
CH187346A true CH187346A (en) 1936-10-31

Family

ID=25721149

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187346D CH187346A (en) 1935-05-22 1935-05-22 Process for the preparation of a new azo dye.

Country Status (1)

Country Link
CH (1) CH187346A (en)

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