CH189319A - Process for the preparation of a dioxazine dye sulfonic acid. - Google Patents

Process for the preparation of a dioxazine dye sulfonic acid.

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Publication number
CH189319A
CH189319A CH189319DA CH189319A CH 189319 A CH189319 A CH 189319A CH 189319D A CH189319D A CH 189319DA CH 189319 A CH189319 A CH 189319A
Authority
CH
Switzerland
Prior art keywords
sulfonic acid
preparation
dioxazine dye
dye sulfonic
dioxazine
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 CH189319A publication Critical patent/CH189319A/en

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

Description

  

  Verfahren zur Darstellung einer     Dioaazinfarbstoffsulfosäure.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung einer     D'ioxazin-          farbstoffsulfosäure,    welches dadurch ;gekenn  zeichnet ist, dass man 2.     5-Di(2'-aminodiphe-          nylenoxyd    - 6' -     sulfosäure)-3    . 6 -     dichlor-1    .     4-          benzochinon    mit einem     Kondensationsmittel     behandelt.  



  <I>Beispiel:</I>  50     Gewichtsteile        2.5-Di-(2'-aminodiphe-          nylenoxyd    - 6' -     sulf        osäure)-3    . 6 -     dichlor-1    .

       4-          benzochinon,    erhältlich zum Beispiel aus       Chlorauil    und 2 -     aminodiphenylenoxyd    - 6     -          sulfosaurem    Natrium werden in     wässrigem     Alkohol unter Zusatz säurebindender     Mittel     in 1500 Gewichtsteilen     Schwefelsäuremono-          hydrat    eingetragen und     1/4    Stunde auf 150    erhitzt. Die erkaltete     Reaktionsmasse    wird  auf Eis gegeben,     abfiltriert,    mit Kochsalz  lösung neutral gewaschen und getrocknet.

    Die erhaltene     Farbstoffsulfosäure    färbt  Baumwolle und Kunstseide in     blaustichig       roten Tönen, die sich durch gute Echtheits  eigenschaften auszeichnen.



  Process for the preparation of a dioaazine dye sulfonic acid. The subject of this additional patent is a process for the preparation of a dioxazine dye sulfonic acid, which is characterized in that 2. 5-di (2'-aminodiphenylene oxide-6'-sulfonic acid) -3. 6 - dichloro-1. 4-benzoquinone treated with a condensing agent.



  <I> Example: </I> 50 parts by weight of 2.5-di- (2'-aminodiphenylene oxide - 6 '- sulfonic acid) -3. 6 - dichloro-1.

       4-benzoquinone, obtainable, for example, from Chlorauil and 2-aminodiphenylene oxide-6-sulfonic acid sodium are introduced into 1500 parts by weight of sulfuric acid monohydrate in aqueous alcohol with the addition of acid-binding agents and heated to 150 for 1/4 hour. The cooled reaction mass is poured onto ice, filtered off, washed neutral with sodium chloride solution and dried.

    The dye sulfonic acid obtained dyes cotton and rayon in bluish red tones, which are characterized by good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer Diox- azinfarbstoffsulfosäure, dadurch gekennzeich net, dass man 2.5-Di-(2'-amino-diphenylen- oxyd-6'-sulfosäure)-3 . 6-dichlor-1 . 4-benzo- chinon mit einem Kondensationsmittel be handelt. PATENT CLAIM: Process for the preparation of a dioxazine dye sulfonic acid, characterized in that 2.5-di- (2'-aminodiphenylene oxide-6'-sulfonic acid) -3. 6-dichloro-1. 4-benzoquinone is treated with a condensing agent. Die so erhaltene Dioxazinfarbstoffsulfo- säure färbt Baumwolle und Kunstseide in blaustichig roten Tönen, die sich durch gute Echtheitseigenschaften auszeichnen. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man als Kondensations- mittel Schwefelsäuremonohydrat verwendet. The dioxazine dye sulfonic acid thus obtained dyes cotton and rayon in bluish red shades, which are distinguished by good fastness properties. SUBCLAIM: Process according to patent claim, characterized in that sulfuric acid monohydrate is used as the condensation agent.
CH189319D 1934-07-27 1935-07-26 Process for the preparation of a dioxazine dye sulfonic acid. CH189319A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE189319X 1934-07-27
CH186848T 1935-07-26

Publications (1)

Publication Number Publication Date
CH189319A true CH189319A (en) 1937-02-15

Family

ID=25721429

Family Applications (1)

Application Number Title Priority Date Filing Date
CH189319D CH189319A (en) 1934-07-27 1935-07-26 Process for the preparation of a dioxazine dye sulfonic acid.

Country Status (1)

Country Link
CH (1) CH189319A (en)

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