CH101091A - Process for the production of an indigoid dye. - Google Patents

Process for the production of an indigoid dye.

Info

Publication number
CH101091A
CH101091A CH101091DA CH101091A CH 101091 A CH101091 A CH 101091A CH 101091D A CH101091D A CH 101091DA CH 101091 A CH101091 A CH 101091A
Authority
CH
Switzerland
Prior art keywords
production
light
indigoid dye
dye
wash
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 CH101091A publication Critical patent/CH101091A/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
    • C09B7/10—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 P a  tentes Nr. 93486, mit     Oxythionaphtenkarbon-          sä        ure    kondensiert.

   Der Farbstoff bildet ein  dunkles Pulver, löst sich in konzentrierter  Schwefelsäure mit dunkelblaugrüner Farbe  und gibt mit     Hydrosulfit    und Natronlauge  eine gelbe     Küpe,    aus welcher Wolle in     licht-          und    waschechten roten, Baumwolle in sehr  licht-, wasch- und chlorechten Bordeaux Tö  nen gefärbt wird.  



  <I>Beispiel:</I>  In 7000 Teilen Alkohol werden 214 Teile       B-Thionaphtisatin    und 194 Teile     Oxythio-          naphtenkarbonsäure    eingetragen und hierauf  einige Stunden am     Rückflusskühler    gekocht.  Die Kondensation kann durch Zusatz von    Ammoniak oder     Dimethylanilin    beschleunigt  werden. Nachdem sie beendet ist, wird fil  triert, 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-thionaphthisatin, obtained for example by the process of Patent No. 93486, is condensed with oxythionaphthenecarboxylic acid.

   The dye forms a dark powder, dissolves in concentrated sulfuric acid with a dark blue-green color and, with hydrosulphite and caustic soda, gives a yellow vat, from which wool is dyed in light- and washfast red, cotton in very light-, wash- and chlorine-fast Bordeaux tones .



  <I> Example: </I> 214 parts of B-thionaphthisatin and 194 parts of oxythiononaphthenecarboxylic acid are added to 7000 parts of alcohol and 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)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines indi- goiden Farbstoffes, dadurch gekennzeichnet, ,dass das @ss-Thionaphtisatin mit Oxythionaph- tenkarbonsäure kondensiert wird. Der Farb stoff bildet ein dunkles Pulver, löst sich in konzentrierter Schwefelsäure mit dunkelblau grüner Farbe und gibt mit $ydrosulfit und Natronlauge eine gelbe Küpe, aus welcher Wolle in licht- und waschechten roten, Baum wolle in sehr licht- wasch- und chlorechten Bordeaux Tönen gefärbt wird. <B> PATENT CLAIM: </B> Process for the production of an indigoid dye, characterized in that the @ss-thionaphthisatin is condensed with oxythionaphthenecarboxylic acid. The dye forms a dark powder, dissolves in concentrated sulfuric acid with a dark blue-green color and, with sodium sulfite and sodium hydroxide solution, gives a yellow vat, from which wool in light- and wash-fast red, cotton in very light-wash- and chlorine-fast Bordeaux tones is colored.
CH101091D 1922-11-18 1922-11-18 Process for the production of an indigoid dye. CH101091A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH101091T 1922-11-18

Publications (1)

Publication Number Publication Date
CH101091A true CH101091A (en) 1923-12-17

Family

ID=25705814

Family Applications (1)

Application Number Title Priority Date Filing Date
CH101091D CH101091A (en) 1922-11-18 1922-11-18 Process for the production of an indigoid dye.

Country Status (1)

Country Link
CH (1) CH101091A (en)

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