CH187349A - Process for the preparation of a new azo dye. - Google Patents

Process for the preparation of a new azo dye.

Info

Publication number
CH187349A
CH187349A CH187349DA CH187349A CH 187349 A CH187349 A CH 187349A CH 187349D A CH187349D A CH 187349DA CH 187349 A CH187349 A CH 187349A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
new azo
new
garnet
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 CH187349A publication Critical patent/CH187349A/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   <B>Nr.</B> 185146.    Verfahren zur Herstellung eines neuen     Azofarbstoffs.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn man     diazotiertes        4-          Ami    n o - 2 -chlor- 5     -äthoxy-h9-ox    m     ethyl-1,1'-azo-          benzol    mit dem     Anilid    der     2.3-Oxyriaphthoe-          säure    vereinigt. Der neue Farbstoff stellt  einen     granat-roten    Niederschlag dar.

   Auf ge  eigneten Substraten, wie zum Beispiel Baum  wolle, hergestellt, färbt er diese in     granat-          roten    Tönen mit     vortreffliehen    Echtheitseigen  schaften.    <I>Beispiel:</I>    30,5 Teile     4-Amino-2-chlor-5-äthoxy-ss-ox-          methyl-1,1'-azobenzol    werden wie üblich     diazo-          tiert    und in eine Lösung von 26,3 Teilen     2.3-          Oxynaphthoesäure-anilid,    50 Teilen 30%iger  Natronlauge, 30 Teilen Soda und 2000 Teilen  Wasser eingetragen. Der gebildete     Farbstoff       fällt sofort aus.

   Der     granat-rote    Niederschlag  wird filtriert und getrocknet.



  <B> Additional patent </B> to main patent <B> No. </B> 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-2-chloro-5-ethoxy-h9-ox m ethyl-1,1'-azo-benzene with the anilide of 2,3-oxyriaphthoic acid united. The new dye is a garnet-red precipitate.

   Produced on suitable substrates such as cotton, he dyes them in garnet-red tones with excellent authenticity properties. <I> Example: </I> 30.5 parts of 4-amino-2-chloro-5-ethoxy-ss-ox-methyl-1,1'-azobenzene are diazobenzene as usual and poured into a solution of 26, 3 parts of 2,3-oxynaphthoic acid anilide, 50 parts of 30% strength sodium hydroxide solution, 30 parts of soda and 2000 parts of water were introduced. The dye formed precipitates immediately.

   The garnet-red precipitate is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 4-Amino-2-ehlor-5-äthoxy-ss- oxmethyl-1,1'-azobenzol mit dem Anilid der 2.3-Oxynaphthoesäure vereinigt. Der neue Farbstoff stellt einen granat-roten Nieder schlag dar. Auf geeigneten Substraten, wie zum Beispiel Baumwolle, hergestellt, färbt er diese in granat-roten Tönen mit vortrefflichen Echtheitseigenschaften. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that diazotized 4-amino-2-chloro-5-ethoxy-ss- oxmethyl-1,1'-azobenzene is combined with the anilide of 2,3-oxynaphthoic acid. The new dye is a garnet-red precipitate. Produced on suitable substrates, such as cotton, it dyes them in garnet-red shades with excellent fastness properties.
CH187349D 1935-05-22 1935-05-22 Process for the preparation of a new azo dye. CH187349A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH185146T 1935-05-22
CH187349T 1935-05-22

Publications (1)

Publication Number Publication Date
CH187349A true CH187349A (en) 1936-10-31

Family

ID=25721152

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187349D CH187349A (en) 1935-05-22 1935-05-22 Process for the preparation of a new azo dye.

Country Status (1)

Country Link
CH (1) CH187349A (en)

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