CH187347A - Process for the preparation of a new azo dye. - Google Patents

Process for the preparation of a new azo dye.

Info

Publication number
CH187347A
CH187347A CH187347DA CH187347A CH 187347 A CH187347 A CH 187347A CH 187347D A CH187347D A CH 187347DA CH 187347 A CH187347 A CH 187347A
Authority
CH
Switzerland
Prior art keywords
preparation
azo dye
new azo
new
dye
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 CH187347A publication Critical patent/CH187347A/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)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffs.       Es wurde gefunden, dass man einen neuen       Azofarbstoff    erhält, wenn     mau    dianotiertes 4       Auiino-5-äthoxy-ss-oxmetbyl-4'-nitro-1,1'-azo-          benzot    mit dem     p-Anisidid    der     2.3-Oxyr)aph-          thoesäure    vereinigt. Der neue Farbstoff stellt  einen violetten Niederschlag dar. Auf geeig  neten Substraten, wie zum Beispiel Baum  wolle, hergestellt, färbt er diese in     corinth-          violetten    Tönen mit vortrefflichen Echtheits  eigenschaften.  



  <I>Beispiel:</I>  31,5 Teile     4-Amino-5        ätlioxy-ss-oxmethyl-          4'-riitro-1,1'-azobenzol    werden wie üblich di  anotiert und in eine Lösung von 29,3 Teilen       2,3-Oxyriaphthoesäure-4'-metlioxyanilid,    50  Teilen     30o/oiger    Natronlauge; 30 Teilen Soda  und 2000 Teilen     Wasser    eingetragen. Der ge-    bildete Farbstoff fällt sofort aus. Der violette  Niederschlag wird filtriert und getrocknet.



  Process for the preparation of a new azo dye. It has been found that a new azo dye is obtained when mau dianotated 4 Auiino-5-ethoxy-ss-oxmetbyl-4'-nitro-1,1'-azobenzot with the p-anisidide of 2.3-oxyr) aph- thoic acid combined. The new dye represents a violet precipitate. Produced on suitable substrates such as cotton, it dyes them in corinth violet shades with excellent fastness properties.



  <I> Example: </I> 31.5 parts of 4-amino-5-ätlioxy-ss-oxmethyl-4'-riitro-1,1'-azobenzene are dissolved as usual and in a solution of 29.3 parts of 2 3-oxyriaphthoic acid-4'-metlioxyanilide, 50 parts of 30% sodium hydroxide solution; 30 parts of soda and 2000 parts of water entered. The dye formed precipitates out immediately. The purple precipitate is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man dianotiertes 4-Amirio-5-äthoxy-ss-oxme- tbyl-4'-riitro-1,1'-azobenzol mit dem p-Anisi- did der 2.3-Oxyriapbthoesäure vereinigt. Der neue Farbstoff stellt einen violetten Nieder schlag dar. Aue geeigneten Substraten, wie zum Beispiel Baumwolle., hergestellt; färbt er diese in corinth-violetten Tönen mit vor trefflichen Echtheitseigenschaften. PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that dianotated 4-amirio-5-ethoxy-ss-oxme- tbyl-4'-riitro-1,1'-azobenzene with the p-aniside of 2.3- Oxyriapbthoic acid combined. The new dye is a purple precipitate. Aue suitable substrates, such as cotton. Manufactured; he dyes them in corinth-violet tones with excellent authenticity properties.
CH187347D 1935-05-22 1935-05-22 Process for the preparation of a new azo dye. CH187347A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH187347T 1935-05-22
CH185146T 1935-05-22

Publications (1)

Publication Number Publication Date
CH187347A true CH187347A (en) 1936-10-31

Family

ID=25721150

Family Applications (1)

Application Number Title Priority Date Filing Date
CH187347D CH187347A (en) 1935-05-22 1935-05-22 Process for the preparation of a new azo dye.

Country Status (1)

Country Link
CH (1) CH187347A (en)

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