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CH177834A - Process for the production of a copper-containing dye. - Google Patents

Process for the production of a copper-containing dye.

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Publication number
CH177834A
CH177834A CH177834DA CH177834A CH 177834 A CH177834 A CH 177834A CH 177834D A CH177834D A CH 177834DA CH 177834 A CH177834 A CH 177834A
Authority
CH
Switzerland
Prior art keywords
copper
dye
parts
containing dye
production
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH177834A publication Critical patent/CH177834A/en

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Description

  

  Verfahren zur Herstellung eines kupferhaltigen Farbstoffes.    Gemäss dem im Hauptpatent beschrie  benen Verfahren erhält man einen kupfer  haltigen     Farbstoff,    wenn man den     .Farbstoff     aus     diazotierter        4-Aniinoazobenzol-4'-sulfo-          säure    und     1-D@Iet.hyl-4-amino-2-oxybenzol    mit       diazotierter        4'-Niti@o-4-aininodiphenylamin-2'-          sulfosäure    weiter kuppelt und das so erhal  tene Produkt mit Verbindungen des zwei  wertigen Kupfers behandelt.  



  Wie nun weiter gefunden wurde, erhält  man einen     Farbstoff    mit ähnlichen Eigen  schaften, wenn man 1     Mol        1-Amino-3-oxy-          benzol    mit 2     Mol        diazotierter        4'-Nitro-4-ami-          nodiphenylainin-2'-sulfosäure    kuppelt und  den erhaltenen     Azofarbstoff    mit Verbindun  gen des zweiwertigen     Mnpfers    behandelt.  



  <I>Beispiel:</I>  61.8 Teile     4'-Nitro-4-aminodiphenylamin-          2'-sulfosäure    werden in der üblichen Weise  mit 13,8 Teilen     Natriumnitrit        diazotiert.     Diese     Diazoverbindung    läuft bei 10       zti    einer  Lösung von 10,9 Teilen     1-Amino-3-oxybenzol     und 33 Teilen     Natrinmcarbonat    in 1000    Teilen Wasser. Nachdem etwa die Hälfte  der     Diazoverbindung    eingelaufen ist, gibt  man den Rest gleichzeitig mit 4 Teilen Na  triumhydroxyd in 20 Teilen Wasser zu.

   Nach  einer Stunde wird die Lösung des     Diazo-          farbstoffes    auf<B>800</B> erwärmt und mit 52  Teilen Kupfersulfat, gelöst in 200 Teilen  Wasser, versetzt. Schliesslich erhitzt man  noch     ilz    Stunde bis zum Sieden. Der erhal  tene kupferhaltige Farbstoff wird in der üb  lichen Weise fertiggestellt, er färbt Leder  rotbraun.



  Process for the production of a copper-containing dye. According to the process described in the main patent, a copper-containing dye is obtained if the dye is obtained from diazotized 4-aminoazobenzene-4'-sulfonic acid and 1-D@Iet.hyl-4-amino-2-oxybenzene with diazotized 4 '-Niti @ o-4-ainodiphenylamine-2'-sulfonic acid further couples and the product obtained in this way is treated with compounds of divalent copper.



  As has now been found further, a dye with similar properties is obtained if 1 mole of 1-amino-3-oxybenzene is coupled with 2 moles of diazotized 4'-nitro-4-aminodiphenylamine-2'-sulfonic acid and the Treated azo dye obtained with compounds of the divalent Mnpfers.



  <I> Example: </I> 61.8 parts of 4'-nitro-4-aminodiphenylamine-2'-sulfonic acid are diazotized in the usual way with 13.8 parts of sodium nitrite. This diazo compound runs with 10 parts of a solution of 10.9 parts of 1-amino-3-oxybenzene and 33 parts of sodium carbonate in 1000 parts of water. After about half of the diazo compound has run in, the remainder is added simultaneously with 4 parts of sodium hydroxide in 20 parts of water.

   After one hour, the solution of the diazo dye is heated to 800 and 52 parts of copper sulfate dissolved in 200 parts of water are added. Finally, heat it to boiling for another hour. The obtained copper-containing dye is finished in the usual way, it dyes leather red-brown.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer haltigen Farbstoffes, dadurch gekennzeichnet, dass man 1 Mol 1-Amino-3-oxyberizol mit 2 Mol diazotierter 4'-Nitro-4-aminodiphenyl- amiri-2'-sulfosäure kuppelt und den erhaltenen Azofarbstoff mit Verbindungen des zweiwer tigen Kupfers behandelt. Der Farbstoff färbt Leder rotbraun. Claim: A process for the preparation of a copper-containing dye, characterized in that 1 mol of 1-amino-3-oxyberizole is coupled with 2 mol of diazotized 4'-nitro-4-aminodiphenyl-amiri-2'-sulfonic acid and the azo dye obtained is coupled with compounds of divalent copper. The dye turns leather a reddish brown.
CH177834D 1933-05-03 1934-03-20 Process for the production of a copper-containing dye. CH177834A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177834X 1933-05-03
CH174651T 1934-12-22

Publications (1)

Publication Number Publication Date
CH177834A true CH177834A (en) 1935-06-15

Family

ID=25719549

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177834D CH177834A (en) 1933-05-03 1934-03-20 Process for the production of a copper-containing dye.

Country Status (1)

Country Link
CH (1) CH177834A (en)

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