CH101092A - Process for the production of an indigoid dye. - Google Patents

Process for the production of an indigoid dye.

Info

Publication number
CH101092A
CH101092A CH101092DA CH101092A CH 101092 A CH101092 A CH 101092A CH 101092D A CH101092D A CH 101092DA CH 101092 A CH101092 A CH 101092A
Authority
CH
Switzerland
Prior art keywords
production
dye
light
red
indigoid dye
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH101092A publication Critical patent/CH101092A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B7/00—Indigoid dyes
    • C09B7/10—Bis-thionapthene indigos

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines     indigoiden    Farbstoffes.    Es wurde gefunden, dass man einen wert  vollen     indigoiden    Farbstoff herstellen kann,  wenn man das     ss-Thionaphtisatin,    beispiels  weise erhalten nach dem Verfahren des Pa  tentes Nr. 93486, mit     6-Chioroxythionaphten-          karbonsäure    kondensiert. Der Farbstoff bil  det ein dunkles Pulver, löst sich in konzen  trierter Schwefelsäure mit dunkelblaugrüner  Farbe und gibt mit     Hydrosulfit    und Natron  lauge eine gelbe     Küpe,    aus welcher Wolle  in licht- und waschechten roten, Baumwolle  in sehr licht-, wasch- und chlorechten braun  roten Tönen gefärbt wird.

           Beispiel:     In 7000 Teilen Alkohol werden 214 Teile       P-Thionaphtisatin    und 228,5 Teile     6-Chlor-          oxythionaplitenkarbonsäure    eingetragen und  hierauf einige Stunden am     Rückflusskühler       gekocht. Die Kondensation kann     durch    Zu  satz von Ammoniak oder     Dimethylanilin    be  schleunigt werden. Nachdem sie beendet ist,  wird filtriert, gewaschen und getrocknet.



  Process for the production of an indigoid dye. It has been found that a valuable indigoid dye can be produced if the β-thionaphtisatin, for example obtained by the process of Patent No. 93486, is condensed with 6-chloroxythionaphthenecarboxylic acid. The dye forms a dark powder, dissolves in concentrated sulfuric acid with a dark blue-green color and, with hydrosulfite and caustic soda, gives a yellow vat, from which wool in light- and wash-fast red, cotton in very light-, wash- and chlorine-fast brown-red Tones is colored.

           Example: 214 parts of P-thionaphtisatin and 228.5 parts of 6-chlorooxythionaplitic acid are added to 7000 parts of alcohol and the mixture is then boiled for a few hours on the reflux condenser. The condensation can be accelerated by adding ammonia or dimethylaniline. After it is finished, it is filtered, washed and dried.

Claims (1)

PATENTANSPRUCFI Verfahren zur Herstellung eines indi- goi,den Farbstoffes, dadurch gekennzeichnet, ,dass das ,ss-Thionaphtisatin mit 6-Chloroxy- thionaphtenkarbonsäure kondensiert. wird. Der Farbstoff bildet ein dunkles. PATENT CLAIMS Process for the production of an indigo, the dye, characterized in that the, ß-thionaphtisatin condenses with 6-chlorooxythionaphtenecarboxylic acid. becomes. The dye forms a dark one. Pulver, löst sich in konzentrierter Schwefelsäure mit dun kelblaugrüner Färbe und gibt mit Hydro- sulfit und Natronlauge eine gelbe Küpe, aus welcher Wolle in licht- und waschechten ro ten, Baumwolle in sehr licht-, wasch- und chlore,chten braunroten Tönen gefärbt wird. Powder, dissolves in concentrated sulfuric acid with a dark blue-green color and gives a yellow vat with hydrosulphite and sodium hydroxide solution, from which wool is dyed in light- and washfast red, cotton in very light-, wash- and chlorine, real brown-red tones .
CH101092D 1922-11-18 1922-11-18 Process for the production of an indigoid dye. CH101092A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH101092T 1922-11-18
CH100705T 1922-11-18

Publications (1)

Publication Number Publication Date
CH101092A true CH101092A (en) 1923-12-17

Family

ID=25705815

Family Applications (1)

Application Number Title Priority Date Filing Date
CH101092D CH101092A (en) 1922-11-18 1922-11-18 Process for the production of an indigoid dye.

Country Status (1)

Country Link
CH (1) CH101092A (en)

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