CH106465A - 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
CH106465A
CH106465A CH106465DA CH106465A CH 106465 A CH106465 A CH 106465A CH 106465D A CH106465D A CH 106465DA CH 106465 A CH106465 A CH 106465A
Authority
CH
Switzerland
Prior art keywords
production
green
indigoid dye
anthracene series
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 CH106465A publication Critical patent/CH106465A/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

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 103649.    Verfahren zur Herstellung eines     indigoiden        Farbstoffes    der     Anthraeenreihe.       Es wurde gefunden, dass man einen neuen       indigoiden    Farbstoff der     Anthracenreihe    er  hält, wenn man die     2,3-Anthracenthioglykol-          karbonsäure        mit        a-Isatinanilid    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       vio-lettbraune        Küpe,    aus welcher Baumwolle  in rein     grünen,    hervorragend echten Tönen  gefärbt wird.  



       Beispiel:     32 Teile     2,3-Anthra@centhio@glykolliarbon-          säure    werden zusammen mit 25 Teilen     a-Isa-          tinanilid,    150 Teilen     Essigsäureanhydrid    und  10     Teilen    entwässertem     Natrium-acetat    einige  Stunden am     Rückflusskühler    gekocht. Nach  dem Erkalten     wird    das gebildete Kondensa-         tionsprodukt        abgesiauigt    und     mit    Eisessig und  Wasser gewaschen und getrocknet.



  <B> Additional patent </B> to main patent no. 103649. Process for the production of an indigoid dye of the Anthraeen range. It has been found that a new indigoid dye of the anthracene series is obtained if the 2,3-anthracene thioglycol carboxylic acid 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 from it in green flakes by water; with hydrosulphite and caustic soda, he gives a violet brown vat, from which cotton is dyed in pure green, outstandingly real tones.



       Example: 32 parts of 2,3-anthra @ centhio @ glycolliaric acid are boiled for a few hours on the reflux condenser together with 25 parts of a-isatinanilide, 150 parts of acetic anhydride and 10 parts of dehydrated sodium acetate. After cooling, the condensation product formed is drained off, washed with glacial acetic acid and water and dried.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen indigoiden Farbstoffes der Anthracenreihe, dadurch gekennzeichnet, dass die 2,3-Anthra- centhioglykolkarbansäure mit a - Isatinanilid kondensiert wird. PATENT CLAIM Process for the production of a new indigoid dye of the anthracene series, characterized in that the 2,3-anthracenthioglycol carbanic acid is condensed with α-isatin anilide. Der neue Farbstoff bildet ein schwarz grünes Pulver, das in Szhwefelsä,ure mit brauner Farbe. löslich ist, und daraus durch Wasser in grünen Flocken gefällt wird; mit Hyclrosulfit und Natronlauge gibt er eine violettbraune Küpe, aus welcher Baumwolle in rein .grünen, hervorragend echten Tönen gefärbt wird. The new dye forms a black green powder, which in sulfuric acid is brown in color. is soluble, and is precipitated from it by water in green flakes; with cyclrosulfite and caustic soda, he gives a violet-brown vat from which cotton is dyed in pure, green, outstandingly real tones.
CH106465D 1923-01-24 1923-01-24 Process for the production of an indigoid dye of the anthracene series. CH106465A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH103649T 1923-01-24
CH106465T 1923-01-24

Publications (1)

Publication Number Publication Date
CH106465A true CH106465A (en) 1924-09-01

Family

ID=25706529

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106465D CH106465A (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) CH106465A (en)

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