CH106455A - Process for the production of a new indigoid dye. - Google Patents

Process for the production of a new indigoid dye.

Info

Publication number
CH106455A
CH106455A CH106455DA CH106455A CH 106455 A CH106455 A CH 106455A CH 106455D A CH106455D A CH 106455DA CH 106455 A CH106455 A CH 106455A
Authority
CH
Switzerland
Prior art keywords
production
dye
indigoid dye
red
new
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 CH106455A publication Critical patent/CH106455A/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     indi-          goiden    Farbstoff herstellen kann,     wenn    man  das     6-Chlo.r-2,1-thionaphthisatin    mit     Oxythio-          naphthenkarbonsäure    kondensiert. Der     Farb-          stoff    stellt ein braunrotes Pulver dar, das  sich in     konzentrierter        Schwefelsäure    mit blau  grüner Farbe löst.

   Der Farbstoff färbt aus  rotgelber     Küpe    Baumwolle in echten bor  deauxroten Tönen.  



       Beispiel:     248,5 Teile     6-Chlor-2,1-thionaphthisatin     und 194 Teile     Oxythionaphthenkarbonsäure     werden in 4000 Teilen     Alkohol    suspendiert  und nach Zugabe von 5     Teilen    Soda zum Sie  den erhitzt. Nach mehrstündigem Kochen ist  die     Kondensation    beendigt. Der     abges    ühie-    Jene Farbstoff wird     filtriert,        gewaschen    und  getrocknet.



  Process for the production of an indigoid dye. It has been found that an indigoid dye can be produced if the 6-chloro-2,1-thionaphthisatin is condensed with oxythionnaphthenecarboxylic acid. The dye is a brown-red powder that dissolves in concentrated sulfuric acid with a blue-green color.

   The dye dyes cotton from a red-yellow pot in real bordeaux red tones.



       Example: 248.5 parts of 6-chloro-2,1-thionaphthisatin and 194 parts of oxythionaphthenecarboxylic acid are suspended in 4000 parts of alcohol and, after addition of 5 parts of soda, they are heated. After several hours of boiling, the condensation has ended. The removed dye is filtered, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines indigoi- den Farbstoffes, dadurch gekennzeichnet, dass man 6-Chlor-2,1-thionaphthisatin mit Ogy- thionaphthenkarbonsäure kondensiert. Der Farbstoff stellt ein braunrotes Pulver dar, das sich in konzentrierter Schwefelsäure mit blaugrüner Farbe löst. Der Farbstoff färbt aus rotgelber Küpe Baumwolle in echten bord@eaux-roten Tönen. PATENT CLAIM: Process for the production of an indigoid dye, characterized in that 6-chloro-2,1-thionaphthisatin is condensed with ogythionaphthenecarboxylic acid. The dye is a brownish-red powder that dissolves in concentrated sulfuric acid with a blue-green color. The dye dyes cotton from a red-yellow pot in real bordeaux-red tones.
CH106455D 1922-11-18 1923-05-17 Process for the production of a new indigoid dye. CH106455A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH106455T 1923-05-17

Publications (1)

Publication Number Publication Date
CH106455A true CH106455A (en) 1924-09-01

Family

ID=25705870

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106455D CH106455A (en) 1922-11-18 1923-05-17 Process for the production of a new indigoid dye.

Country Status (1)

Country Link
CH (1) CH106455A (en)

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