CH195862A - 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
CH195862A
CH195862A CH195862DA CH195862A CH 195862 A CH195862 A CH 195862A CH 195862D A CH195862D A CH 195862DA CH 195862 A CH195862 A CH 195862A
Authority
CH
Switzerland
Prior art keywords
sulfonic acid
preparation
condensation
dioxazine dye
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 CH195862A publication Critical patent/CH195862A/en

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  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung einer     Dioaazinfarbstofisulfosäure.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Darstellung einer       Dioxazinfarbstoffsulfosäure,    welches dadurch  gekennzeichnet ist, dass man das aus ein  Hol     Chloranil    und zwei Hol     1-Acetylamino-          4-aminonaphthalin-6-sulfosäure    durch Konden  sation in Alkohol erhältliche Produkt durch  Behandlung mit einem Kondensationsmittel  in die     Dioxazinverbindung    überführt.

      <I>Beispiel:</I>    10 Gewichtsteile des Kondensationspro  duktes aus     Chloranil    und     1-Acetylamino-4-          aminonaphthalin-6-sulfosäure    werden in 200  Gewichtsteilen konzentrierter Schwefelsäure  gelöst und einige Zeit unter Rühren auf  90-100   erwärmt. Darauf giesst man die  schwefelsaure Lösung auf Eis, saugt den  ausgefällten Farbstoff ab, wäscht mit Koch  salzlösung neutral und trocknet. Der so er  haltene Farbstoff färbt aus     sodaalkalischer       oder salzhaltiger Lösung Baumwolle und  Viskose sowie Mischgewebe in klaren grün  stichig-blauen Tönen.



  Process for the preparation of a dioaazine dye disulfonic acid. The subject of the present additional patent is a process for the preparation of a dioxazine dyestuff sulfonic acid, which is characterized in that the product obtainable from a hol chloranil and two hol 1-acetylamino-4-aminonaphthalene-6-sulfonic acid by condensation in alcohol is obtained by treatment with a Condensation agent converted into the dioxazine compound.

      <I> Example: </I> 10 parts by weight of the condensation product made from chloranil and 1-acetylamino-4-aminonaphthalene-6-sulfonic acid are dissolved in 200 parts by weight of concentrated sulfuric acid and heated to 90-100 for a while while stirring. The sulfuric acid solution is then poured onto ice, the precipitated dye is filtered off with suction, washed neutral with sodium chloride solution and dried. The dye obtained in this way dyes cotton and viscose as well as mixed fabrics in clear green, pungent blue tones from alkaline or salty solutions.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer Dioxazin- farbstoffsulfosäure, dadurch gekennzeichnet, dass man das aus ein Hol Chloranil und zwei Hol 1-Acetylamino-4-aminonaphtbalin-6-sulfo- säure durch Kondensation in Alkohol erhält liche Produkt durch Behandlung mit einem Kondensationsmittel in die Dioxazinverbindung überführt. UNTERANSPRUCH: Verfahren nach Patentansprucb, dadurch gekennzeichnet, dass man als Kondensations mittel konzentrierte Schwefelsäure verwendet und die Kondensation bei einer Temperatur von 90-100 C bewirkt. Claim: a process for the preparation of a dioxazine dye sulfonic acid, characterized in that the product obtained from a hol chloranil and two hol 1-acetylamino-4-aminonaphthbalin-6-sulfonic acid by condensation in alcohol is obtained by treatment with a condensing agent Dioxazine compound transferred. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that concentrated sulfuric acid is used as the condensation agent and the condensation is effected at a temperature of 90-100 C.
CH195862D 1935-02-02 1936-01-27 Process for the preparation of a dioxazine dye sulfonic acid. CH195862A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE195862X 1935-02-02
CH186848T 1935-07-26

Publications (1)

Publication Number Publication Date
CH195862A true CH195862A (en) 1938-02-15

Family

ID=25721445

Family Applications (1)

Application Number Title Priority Date Filing Date
CH195862D CH195862A (en) 1935-02-02 1936-01-27 Process for the preparation of a dioxazine dye sulfonic acid.

Country Status (1)

Country Link
CH (1) CH195862A (en)

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