CH138773A - Process for the production of an indigoid dye. - Google Patents

Process for the production of an indigoid dye.

Info

Publication number
CH138773A
CH138773A CH138773DA CH138773A CH 138773 A CH138773 A CH 138773A CH 138773D A CH138773D A CH 138773DA CH 138773 A CH138773 A CH 138773A
Authority
CH
Switzerland
Prior art keywords
production
dye
indigoid dye
indigoid
methyl
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 CH138773A publication Critical patent/CH138773A/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 befunden,     dass    man einen     in-          digoiden    Farbstoff herstellen kann, wenn  man ein     a-Ketomonoanil    des     Thion.aphthen-          chinons    mit     1-Methyl-2,3-nap.hthooxythio-          phen        kondensiert.     



  Der erhaltene Farbstoff stellt ein dunkel  blaues Pulver dar, das sich in konzentrierter       Schwefelsäure    mit grünoliver Farbe löst. Es  bildet eine     orangebraune        Kvipe.    Daraus wird  Baumwolle in grauer Nuance von sehr guter  Echtheit     gefärbt.     



       Beispiel:     21,4 Teile     1-Methyl-2,3-naphthooxythio-          phen    werden mit 28,2 Teilen     Thionaphthen-          chinon-p-dimethylamide-anil    in 400 Teilen  Eisessig suspendiert und einige Stunden  rückfliessend gekocht. Hierauf wird filtriert,    mit Alkohol gewaschen und .der Farbstoff ge  trocknet.



      Process for the production of an indigoid dye. It has been found that an indigo dye can be produced by condensing an α-ketomonoanil of thion.aphthene-quinone with 1-methyl-2,3-nap.hthooxythiophene.



  The dye obtained is a dark blue powder which dissolves in concentrated sulfuric acid with a green-olive color. It forms an orange-brown kvipe. From this, cotton is dyed in a gray shade of very good fastness.



       Example: 21.4 parts of 1-methyl-2,3-naphthooxythiophene are suspended with 28.2 parts of thionaphthene-quinone-p-dimethylamide-anil in 400 parts of glacial acetic acid and refluxed for a few hours. It is then filtered, washed with alcohol and the dye is dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines indi- goiden Farbstoffes, dadurch gekennzeichnet, d,ass man ein a-Ketomonoanil des Thionaph- thenchinos mit 1-Methyl-2,3-naphtho@oxythio- phen kondensiert. Der erhaltene Farbstoff stellt ein dunkel blaues Pulver dar, das sich in konzentrierter ,Schwefelsäure mit.grünoliver Farbe löst. Es bildet eine orangebraune Küpe. Daraus wird Baumwolle in grauer Nuance von sehr guter Echtheit .gefärbt. PATENT CLAIM: Process for the production of an indigoid dye, characterized in that an α-ketomonoanil of thionaphthenechino is condensed with 1-methyl-2,3-naphtho @ oxythiophene. The dye obtained is a dark blue powder that dissolves in concentrated sulfuric acid with a green-olive color. It forms an orange-brown vat. From this, cotton is dyed in a gray shade of very good fastness.
CH138773D 1922-11-18 1927-11-17 Process for the production of an indigoid dye. CH138773A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH138773T 1927-11-17

Publications (1)

Publication Number Publication Date
CH138773A true CH138773A (en) 1930-03-15

Family

ID=25705878

Family Applications (1)

Application Number Title Priority Date Filing Date
CH138773D CH138773A (en) 1922-11-18 1927-11-17 Process for the production of an indigoid dye.

Country Status (1)

Country Link
CH (1) CH138773A (en)

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