CH117996A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH117996A
CH117996A CH117996DA CH117996A CH 117996 A CH117996 A CH 117996A CH 117996D A CH117996D A CH 117996DA CH 117996 A CH117996 A CH 117996A
Authority
CH
Switzerland
Prior art keywords
orange
new dye
dye
parts
production
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 CH117996A publication Critical patent/CH117996A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/02Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14Monoazo compounds
    • C09B45/16Monoazo compounds containing chromium

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     .Farbstoffes:       Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man das     2-Amino-l-          oxybenzol-4-sulfamid        diazotiert,    hierauf mit       1-(3'-Sulfamido)        =.phenyl-3-methyl-5-pyrazo-          lon    kuppelt und den so erhaltenen Farbstoff  mit     Chromformiat    behandelt.

   Der neue Farb  stoff bildet ein     orangebraunes    Pulver, löst  sich in Wasser und in 10     %iger    Natronlauge  mit oranger, in konzentrierter Schwefelsäure  mit gelber Farbe und färbt Wolle, vor  allem lose Wolle oder Kammzug, aus saurem  Bade in     Orangetönen    mit vorzüglichen Echt  heitseigenschaften.  



  <I>Beispiel:</I>  188 Teile     2-,Amino-l-oxybenzol-4-sulfa-          mid    werden in 600 Teilen Wasser und 150  Teilen 30     %iger    Salzsäure gelöst, bei<B>5'</B> mit  69 Teilen     Natriumnitrit        diazotiert    und in  eine eiskalte, .dauernd     sodaalkalisch    gehal  tene Lösung von 253 Teilen     1-(3'-Sulfamido)-          phenyl-3-methyl-5-pyrazolon    eingerührt.

   Nach  beendeter Reaktion wird der völlig ausge  schiedene Farbstoff     abfiltriert.    Er kann  durch     Lösen    in Wasser bei<B>85-90'</B> und       Auskristallisierenlassen    gereinigt werden.    45,2 Teile, des     Azofarbstoffes    aus 2  Amino-l-axybenzol-4-sulfamid und     1-(3'-Sul-          famido)-phenyl-3-methyl-5-pyrazolon    werden  in 1000 Teilen kochendem Wasser gelöst, mit  einer     Chromformiatlösung    entsprechend 15.2  Teilen     Cr203    versetzt und längere Zeit am       Rückflusskühler    gekocht. Hierauf wird die  Chromverbindung durch     Aussalzen    gewon  nen.



  Process for the preparation of a new dye: It has been found that a new dye is obtained if the 2-amino-l-oxybenzene-4-sulfamide is diazotized, then with 1- (3'-sulfamido) = .phenyl-3 -methyl-5-pyrazolone coupled and treated the dye thus obtained with chromium formate.

   The new dye forms an orange-brown powder, dissolves in water and in 10% sodium hydroxide solution with orange, in concentrated sulfuric acid with a yellow color and dyes wool, especially loose wool or sliver, from an acid bath in shades of orange with excellent fastness properties.



  <I> Example: </I> 188 parts of 2-, amino-1-oxybenzene-4-sulfamide are dissolved in 600 parts of water and 150 parts of 30% hydrochloric acid, with <B> 5 '</B> with 69 parts of sodium nitrite are diazotized and stirred into an ice-cold solution of 253 parts of 1- (3'-sulfamido) -phenyl-3-methyl-5-pyrazolone.

   After the reaction has ended, the completely separated dye is filtered off. It can be cleaned by dissolving it in water at <B> 85-90 '</B> and letting it crystallize. 45.2 parts of the azo dye from 2 amino-1-axybenzene-4-sulfamide and 1- (3'-sulfamido) -phenyl-3-methyl-5-pyrazolone are dissolved in 1000 parts of boiling water with a chromium formate solution 15.2 parts of Cr203 were added accordingly and boiled for a long time on the reflux condenser. The chromium compound is then won by salting out.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man ,das 2-Amino-l-oxybenzol-4-sulfa.mi,d di- azotiert, hierauf mit 1-(3'-.Sulfamido)-phenyl- 3-methyl-5-pyrazolon kuppelt und den so er haltenen Farbstoff mit Chromformiat be handelt. Der neue Farbstoff bildet ein orangebraunes Pulver, löst sich in Wasser und in 10 %iger Natronlauge mit oranger, in konzentrierter Schwefelsäure mit gelber Farbe und färbt Wolle, vor allem lose Wolle oder Kammzug, aus saurem Bade in Orange tönen mit vorzüglichen Echtheitseigenschaf ten. PATENT CLAIM: Process for the preparation of a new dye, characterized in that the 2-amino-1-oxybenzene-4-sulfa.mi, d is azotized, then with 1- (3 '-. Sulfamido) -phenyl- 3 -methyl-5-pyrazolone couples and the dye obtained in this way is treated with chromium formate. The new dye forms an orange-brown powder, dissolves in water and in 10% sodium hydroxide solution with orange, in concentrated sulfuric acid with a yellow color and dyes wool, especially loose wool or tops, from acid baths in shades of orange with excellent fastness properties.
CH117996D 1925-07-03 1925-07-03 Process for the production of a new dye. CH117996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH117996T 1925-07-03

Publications (1)

Publication Number Publication Date
CH117996A true CH117996A (en) 1926-12-01

Family

ID=4376977

Family Applications (1)

Application Number Title Priority Date Filing Date
CH117996D CH117996A (en) 1925-07-03 1925-07-03 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH117996A (en)

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