CH192482A - Process for the preparation of a dye of the anthraquinone series. - Google Patents

Process for the preparation of a dye of the anthraquinone series.

Info

Publication number
CH192482A
CH192482A CH192482DA CH192482A CH 192482 A CH192482 A CH 192482A CH 192482D A CH192482D A CH 192482DA CH 192482 A CH192482 A CH 192482A
Authority
CH
Switzerland
Prior art keywords
dye
anthraquinone series
preparation
sulfonic acid
condensed
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 CH192482A publication Critical patent/CH192482A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines Farbstoffes der     Anthrachinonreihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Herstellung eines Farbstoffes  der     Anthrachinonreihe,    welches dadurch ge  kennzeichnet ist, dass man     1-jodanthrachinon-          2-sulfosaures    Natrium mit     1,2-Diaminobenzol-          4-sulfosäure    kondensiert.  



  <I>Beispiel:</I>  45     Gewichtsteile        1-jodanthrachinon-2-          sulfosaures    Natrium, 22 Gewichtsteile     1,2-          Diaminobenzol-4-sulfosäure,    20 Gewichtsteile       calc.    Soda und 0,5 Gewichtsteile Kupfer  chlorür werden in 350 Gewichtsteilen Was  ser bei Zimmertemperatur solange     gerührt,     bis sich die Farbe der entstandenen Lösung  nicht mehr ändert. Nachdem man die Tem  peratur noch für kurze     Zeit    auf 30 bis 35   C  erhöht hat, wird das     Reaktionsprodukt    in der  üblichen Weise isoliert.

   Man erhält eine       leichte    wasserlösliche, braune Substanz,    welche die tierische Faser in schönen brau  nen Tönen färbt.



  Process for the preparation of a dye of the anthraquinone series. The subject of this additional patent is a process for the production of a dye of the anthraquinone series, which is characterized in that 1-iodanthraquinone-2-sulfonic acid sodium is condensed with 1,2-diaminobenzene-4-sulfonic acid.



  <I> Example: </I> 45 parts by weight of 1-iodanthraquinone-2-sulfonic acid sodium, 22 parts by weight of 1,2-diaminobenzene-4-sulfonic acid, 20 parts by weight of calc. Soda and 0.5 parts by weight of copper chlorur are stirred in 350 parts by weight of water at room temperature until the color of the resulting solution no longer changes. After the temperature has been increased to 30 to 35 ° C. for a short time, the reaction product is isolated in the usual manner.

   A slightly water-soluble, brown substance is obtained which colors the animal fiber in beautiful brown tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Farb stoffes der Anthrachinonreihe, dadurch ge kennzeichnet, dass man 1-jodanthrachinon-2- sulfosaures Natrium mit 1,2-Diaminobenzol- 4-sulfosäure kondensiert. Der so erhältliche Farbstoff ist eine braune, leicht wasserlösliche Substanz, wel che die tierische Faser in schönen braunen Tönen färbt. PATENT CLAIM: Process for the production of a dye of the anthraquinone series, characterized in that 1-iodanthraquinone-2-sulfonic acid sodium is condensed with 1,2-diaminobenzene-4-sulfonic acid. The dye thus obtainable is a brown, easily water-soluble substance which colors the animal fiber in beautiful brown tones. UNTERANSPRUCH: Verfahren nach Patentanspruch, .dadurch gekennzeichnet, dass die Reaktionskomponen- ten durch Erwärmen in Wasser in Gegen wart von Natriumcarbonat und Kupferchlo- rür kondensiert werden. SUBClaim: Process according to patent claim, characterized in that the reaction components are condensed by heating in water in the presence of sodium carbonate and copper chloride.
CH192482D 1934-12-07 1935-12-05 Process for the preparation of a dye of the anthraquinone series. CH192482A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE192482X 1934-12-07
CH189646T 1935-12-05

Publications (1)

Publication Number Publication Date
CH192482A true CH192482A (en) 1937-08-15

Family

ID=25721815

Family Applications (1)

Application Number Title Priority Date Filing Date
CH192482D CH192482A (en) 1934-12-07 1935-12-05 Process for the preparation of a dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH192482A (en)

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