[go: up one dir, main page]

CH177832A - Process for the production of a copper-containing dye. - Google Patents

Process for the production of a copper-containing dye.

Info

Publication number
CH177832A
CH177832A CH177832DA CH177832A CH 177832 A CH177832 A CH 177832A CH 177832D A CH177832D A CH 177832DA CH 177832 A CH177832 A CH 177832A
Authority
CH
Switzerland
Prior art keywords
copper
dye
containing dye
production
parts
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 CH177832A publication Critical patent/CH177832A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines kupferhaltigen Farbstoffes.    Gemäss dem im Hauptpatent beschriebe  nen     Verfahren    erhält man einen kupferhal  tigen Farbstoff, wenn man den Farbstoff aus  dianotierter     4-Aininoazobensol-4'-sulfosäure     und     1-Methyl-4-amino-2-oxybenzol    mit diano  tierter     4'-Nitro-4-aminodiphenylamin-2'-stilfo-          s*Ltire    weiter kuppelt und das so erhaltene       rodukt    mit Verbindungen des zweiwertigen  Kupfers behandelt.  



  Wie nun weiter gefunden wurde, erhält  man einen ähnlichen Farbstoff, wenn man  2     Mol        4'-Nitro-4-aminodiphenylamin-2'-sulfo-          säure    dianotiert, die     Diazoverbindung    mit  1     blol        1#3-Dioxybenzol    kuppelt und den so  erhaltenen Farbstoff mit Verbindungen des  zweiwertigen Kupfers behandelt.  



  <I>Beispiel:</I>  61,8 Teile     4'-Nitro-4-amonodiphenylamin-          2'-sulfosäure    werden in der üblichen Weise  dianotiert. Diese     Diazoverbindung    läuft gleich  zeitig mit 12 Teilen     Natriumhydroxyd,    ge-    löst in 60 Teilen Wasser, bei 5   in eine  Lösung von 11 Teilen     7.#3-Dioxybenzol    und  8 Teilen     Natriumhydroxyd    in 1000 Teilen  Wasser. Nach Beendigung der Kupplung  wird die     Farbstofflösung    auf<B>500</B> erwärmt  und mit einer     Kupferoxydaminoniaklösung     aus 50 Teilen Kupfersulfat versetzt. Die  Lösung wird zum Sieden erhitzt und eine  halbe Stunde bei dieser Temperatur gehalten.

    Durch Filtration wird überschüssiges Kupfer  oxyd entfernt; der kupferhaltige Farbstoff  färbt Chromleder und vegetabilisch gegerbtes  Leder rotbraun.  



  Man hat bereits     Azofarbstoffe    aus     Nitro-          amiciodiphenylaminosulfosäure    und     Resorcin     durch Luftoxydation bei Gegenwart von  Ammoniak und Kupfer in Lederfarbstoffe  umgewandelt. Die     Farbstoffe    des beanspruch  ten Verfahrens sind aber mit diesen nicht  identisch und zeichnen sich vor ihnen, ausser  durch eine bessere     Ausbeute-Erzielung    bei  der Herstellung, durch eine wertvollere Nu-           ance,    sowie bessere Lichtechtheit der mit  ihnen erzielten Färbungen aus.



  Process for the production of a copper-containing dye. According to the process described in the main patent, a kupferhal term dye is obtained if the dye is made from dianotated 4-aminoazobensol-4'-sulfonic acid and 1-methyl-4-amino-2-oxybenzene with diano-tated 4'-nitro-4- aminodiphenylamine-2'-stilfos * Ltire and the product thus obtained is treated with compounds of divalent copper.



  As has now also been found, a similar dye is obtained if 2 moles of 4'-nitro-4-aminodiphenylamine-2'-sulfonic acid are dianotated, the diazo compound is coupled with 1 bol of 1 # 3-dioxybenzene and the dye thus obtained is also Treated compounds of divalent copper.



  <I> Example: </I> 61.8 parts of 4'-nitro-4-amonodiphenylamine-2'-sulfonic acid are dianotized in the usual way. This diazo compound runs simultaneously with 12 parts of sodium hydroxide, dissolved in 60 parts of water, at 5 in a solution of 11 parts of 7. # 3-dioxybenzene and 8 parts of sodium hydroxide in 1000 parts of water. After the coupling has ended, the dye solution is heated to 500 and a copper oxydaminonia solution made from 50 parts of copper sulfate is added. The solution is heated to the boil and kept at this temperature for half an hour.

    Excess copper oxide is removed by filtration; the copper-containing dye turns chrome leather and vegetable-tanned leather red-brown.



  Azo dyes made from nitroamiciodiphenylaminosulphonic acid and resorcinol have already been converted into leather dyes by air oxidation in the presence of ammonia and copper. However, the dyes of the claimed process are not identical to these and are distinguished from them, except by a better yield in production, by a more valuable shade and better lightfastness of the dyeings obtained with them.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer haltigen Farbstoffes, dadurch gekennzeichnet, dass man 2 lffol diazotierte 4'-Nitro-4-amino- diphenylamin-2'sulfosäure mit 1 Mol 1#3- Dioxybenzol kuppelt und den so erhaltenen Farbstoff mit Verbindungen des zweiwertigen Kupfers behandelt. Der kupferhaltige Farb stoff färbt Chromleder und vegetabilisch ge gerbtes Leder rotbraun. Claim: Process for the preparation of a copper-containing dye, characterized in that 2 lffol-diazotized 4'-nitro-4-aminodiphenylamine-2'sulfonic acid is coupled with 1 mol of 1 # 3-dioxybenzene and the dye thus obtained with compounds of the divalent Copper treated. The copper-containing dye turns chrome leather and vegetable-tanned leather red-brown.
CH177832D 1933-05-03 1934-03-20 Process for the production of a copper-containing dye. CH177832A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177832X 1933-05-03
CH174651T 1934-12-22

Publications (1)

Publication Number Publication Date
CH177832A true CH177832A (en) 1935-06-15

Family

ID=25719547

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177832D CH177832A (en) 1933-05-03 1934-03-20 Process for the production of a copper-containing dye.

Country Status (1)

Country Link
CH (1) CH177832A (en)

Similar Documents

Publication Publication Date Title
CH177832A (en) Process for the production of a copper-containing dye.
CH177836A (en) Process for the production of a copper-containing dye.
CH177835A (en) Process for the production of a copper-containing dye.
CH209098A (en) Process for the preparation of an azo dye.
CH177833A (en) Process for the production of a copper-containing dye.
CH177834A (en) Process for the production of a copper-containing dye.
CH209097A (en) Process for the preparation of an azo dye.
CH197484A (en) Process for the preparation of a polymethine dye.
CH178415A (en) Process for the production of a copper-containing dye.
CH196879A (en) Process for the preparation of a leather dye.
CH194662A (en) Process for the preparation of a leather dye.
CH170335A (en) Process for the production of a chromium-containing azo dye which coloring in shades of pink.
CH191753A (en) Process for the preparation of an acidic chromating dye of the anthraquinone series.
CH174265A (en) Process for the preparation of an azo dye.
CH177830A (en) Process for the preparation of an o-oxyazo dye.
CH177831A (en) Process for the preparation of an o-oxyazo dye.
CH203034A (en) Process for the preparation of an azo dye containing complexed chromium.
CH197485A (en) Process for the preparation of a polymethine dye.
CH198148A (en) Process for the preparation of a leuco ester of a dye of the anthraquinonazole series.
CH194660A (en) Process for the preparation of a leather dye.
CH180582A (en) Process for the production of a new dye.
CH148370A (en) Process for the production of a new azo dye.
CH209082A (en) Process for the preparation of an o-oxyazo dye.
CH186549A (en) Process for the production of a new azo dye.
CH212420A (en) Process for the preparation of an azo dye.