CH181716A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH181716A
CH181716A CH181716DA CH181716A CH 181716 A CH181716 A CH 181716A CH 181716D A CH181716D A CH 181716DA CH 181716 A CH181716 A CH 181716A
Authority
CH
Switzerland
Prior art keywords
brown
azo dye
production
new
yellow
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH181716A publication Critical patent/CH181716A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium
    • 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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/12—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group of the benzene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>178818.</B>    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen,  en  wertvollen,     eliromierbaren        Monoazofarbstoff     erhält, wenn man die     Diazoverbindung    von       4-Nitro-2-aminophenol-6-sulfünsäure    mit     p-          4(,rtiärem        Amyl-phenol    kuppelt.  



  Der neue Farbstoff ist ein braunes Pul  ver-. er färbt Wolle aus saurem Bade in gelb  braunen Tönen. Durch     Chromieren    entstellen  wertvolle, satte und gedeckte Brauntöne, die  vorzügliche Echtheitseigenschaften besitzen.  Der Farbstoff kann gegebenenfalls vor der       V(,rwendung    im     Färbeprozess    in Chromkom  plexe übergeführt werden.  



  <I>Beispiel:</I>  23,4<B>kg</B>     4-Nitro-92-aminophenol-6-sulion-          säure    werden nach bekannten Methoden     diazo-          tiert.    Mit     Bikarbonat    wird die überschüssige  Mineralsäure abgestumpft und die     Diazo-          niumlösung    unter Rühren zu einer Lösung  von<B>16,5 kg</B>     p-tertiärem        Amyl-phenol    in<B>6 kg</B>       Nalilauge    100%ig und<B>50</B> Liter Wasser ge-    <B>C</B>     ter    Kupplung wird     aus-          "eben.    Nach beende  gesalzen,

   filtriert und getrocknet. Die     Farb-          stoffbildung    verläuft etwas rascher in Gegen  wart von     Pyridin.     



  Der Farbstoff bildet ein braunes Pulver,  das sich in Wasser und konzentrierter Schwe  felsäure mit gelbbrauner Farbe löst.



  Additional patent to main patent no. <B> 178818. </B> Process for the production of a new azo dye. It has been found that a new, valuable, eliromizable monoazo dye is obtained if the diazo compound of 4-nitro-2-aminophenol-6-sulphuric acid is coupled with p-4 (, tertiary amylphenol.



  The new dye is a brown powder. he dyes wool from an acid bath in yellow-brown tones. Chromating disfigures valuable, rich and muted brown tones that have excellent fastness properties. The dye can optionally be converted into chromium complexes prior to use in the dyeing process.



  <I> Example: </I> 23.4 <B> kg </B> 4-nitro-92-aminophenol-6-sulionic acid are diazotized according to known methods. The excess mineral acid is blunted with bicarbonate and the diazonium solution is converted into a solution of <B> 16.5 kg </B> p-tertiary amylphenol in <B> 6 kg </B> 100% sodium hydroxide solution while stirring <B> 50 </B> liters of water <B> C </B> the clutch is evened out. When finished, salted,

   filtered and dried. The formation of color takes place somewhat faster in the presence of pyridine.



  The dye forms a brown powder that dissolves in water and concentrated sulfuric acid with a yellow-brown color.

Claims (1)

PATENTANSPRUCH- Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotierte 4-Nitro-92-amino-phenol-6- sulfonsäure mit p-tertiärem Amyl-phenol kuppelt. Der neue Farbstoff bildet ein brau nes Pulver, das sich in Wasser mit gelb brauner Farbe löst und Wolle aus saurem Bade in gelbbraunen Tönen anfärbt. Durch Chromieren entstehen wertvolle, satte und ge deckte Brauntöne mit vorzüglichen Echtheits eigenschaften. PATENT CLAIM- Process for the preparation of a new azo dye, characterized in that diazotized 4-nitro-92-aminophenol-6-sulfonic acid is coupled with p-tertiary amylphenol. The new dye forms a brown powder that dissolves in water with a yellow-brown color and dyes wool from an acid bath in yellow-brown shades. Chromating creates valuable, rich and muted brown tones with excellent fastness properties.
CH181716D 1934-11-05 1934-11-05 Process for the production of a new azo dye. CH181716A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH181716T 1934-11-05
CH178818T 1935-07-24

Publications (1)

Publication Number Publication Date
CH181716A true CH181716A (en) 1935-12-31

Family

ID=25720206

Family Applications (1)

Application Number Title Priority Date Filing Date
CH181716D CH181716A (en) 1934-11-05 1934-11-05 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH181716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612523A1 (en) * 1987-03-19 1988-09-23 Ciba Geigy Ag PROCESS FOR THE PREPARATION OF METALLABLE MONOAZOIC DYES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612523A1 (en) * 1987-03-19 1988-09-23 Ciba Geigy Ag PROCESS FOR THE PREPARATION OF METALLABLE MONOAZOIC DYES
BE1000630A5 (en) * 1987-03-19 1989-02-21 Ciba Geigy Ag PROCESS FOR THE PREPARATION OF METALLIC MONOAZOIC DYES.
CH677303GA3 (en) * 1987-03-19 1991-05-15

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