CH106466A - Process for the production of an indigoid dye of the anthracene series. - Google Patents

Process for the production of an indigoid dye of the anthracene series.

Info

Publication number
CH106466A
CH106466A CH106466DA CH106466A CH 106466 A CH106466 A CH 106466A CH 106466D A CH106466D A CH 106466DA CH 106466 A CH106466 A CH 106466A
Authority
CH
Switzerland
Prior art keywords
production
dye
anthracene series
green
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 CH106466A publication Critical patent/CH106466A/en

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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
    • C09B7/06—Indone-thionapthene indigos

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     indigoiden        Farbstoffes    der     Anthr        acenr        eihe.       Es wurde gefunden, dass man einen     neuen          indigoiden    Farbstoff der     Anthracenreihe    er  hält, wenn man das 2,3 -     Anthra,cenoxythio-          naphthen    mit     a-Isatinanilicl    kondensiert.  



  Der neue Farbstoff bildet ein schwarz  grünes Pulver, das in Schwefelsäure mit  brauner Farbe löslich ist, und daraus durch  Wasser in grünen Flocken gefällt wird; mit       Hydrosulfit    und Natronlauge gibt er eine       violettbraune        Küpe,    aus welcher     Baiunwolle     in rein grünen, hervorragend echten Tönen  gefärbt wird.  



  <I>Beispiel:</I>  26.     Teile        2,3-Anthracenoxythionaphthen     werden mit 25 Teilen     a-Isatinanilid    in     30(i     Teilen     Pyridin    erwärmt. Die     Farbstoffbil-          dung        ist    in kurzer Zeit beendet. Der gebil-         dete    Farbstoff wird     .abgesaust,    mit Alkohol       nachgewasehen    und getrocknet.



  Process for the production of an indigoid dye of the anthracene series. It has been found that a new indigoid dye of the anthracene series is obtained if the 2,3-anthra, cenoxythionnaphthene is condensed with a-isatinanilicl.



  The new dye forms a black-green powder, which is soluble in sulfuric acid with a brown color, and is precipitated from it in green flakes by water; with hydrosulphite and caustic soda, he gives a violet-brown vat, from which cotton wool is dyed in pure green, outstandingly genuine shades.



  <I> Example: </I> 26. parts of 2,3-anthracene oxythionaphthene are heated with 25 parts of α-isatin anilide in 30 (1 parts of pyridine. The formation of the dye is complete in a short time. The dye formed is acidified , washed with alcohol and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen indigoiden Farbstoffes der Anthra:cenreihe, dadurch gekennzeichnet, dass das 2,3-Anthra- cenoxythionaphthen mit a-Isatinanilid kon densiert wird. Der neue Farbstoff bildet ein schwarz grünes Pulver, das in Schwefelsäure mit brauner Farbe löslich ist, und daraus durch Wasser in ,grünen Flocken gefällt wird; PATENT CLAIM: Process for the production of a new indigoid dye of the anthracene series, characterized in that the 2,3-anthracenoxythionaphthene is condensed with α-isatin anilide. The new dye forms a black-green powder which is soluble in sulfuric acid with a brown color, and is precipitated into green flakes by water; mit Hydrosulfit und Natronlauge gibt er eine violettbraune güpe, ,aus welcher Baumwolle in rein .grünen, hervorragend echten Tönen gefärbt wird. with hydrosulphite and caustic soda it gives a violet-brown güpe, from which cotton is dyed in pure green, outstandingly real tones.
CH106466D 1923-01-24 1923-01-24 Process for the production of an indigoid dye of the anthracene series. CH106466A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH103649T 1923-01-24
CH106466T 1923-01-24

Publications (1)

Publication Number Publication Date
CH106466A true CH106466A (en) 1924-09-01

Family

ID=25706530

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106466D CH106466A (en) 1923-01-24 1923-01-24 Process for the production of an indigoid dye of the anthracene series.

Country Status (1)

Country Link
CH (1) CH106466A (en)

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