CH106434A - Process for the production of a new indigoid dye. - Google Patents

Process for the production of a new indigoid dye.

Info

Publication number
CH106434A
CH106434A CH106434DA CH106434A CH 106434 A CH106434 A CH 106434A CH 106434D A CH106434D A CH 106434DA CH 106434 A CH106434 A CH 106434A
Authority
CH
Switzerland
Prior art keywords
production
new
dye
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 CH106434A publication Critical patent/CH106434A/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

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr.<B>100705.</B>    Verfahren zur Herstellung eines neuen     indigoiden        Farbstoffes.       Es wurde gefunden, dass man einen neuen       indigoid.en    Farbstoff erhält, wenn man das       1-Brom-2,3-thionaphthisatin    (welches erhal  ten werden kann durch Kondensieren von     1-          Brom-2-thionaphihol    mit     Oxalylchlorid)    mit       2,3-Naphtthioindoxyl    kondensiert und das so  erhaltene Produkt     bromiert.     



  Der neue Farbstoff bildet ein     .grünblaues     Pulver, löst sich in konzentrierter Schwefel  säure mit grüner Farbe, gibt -mit     Hydrosulfit     und Natronlauge eine orange     Küpe    und er  zeugt auf Baumwolle Färbungen, welche  nach dem Seifen     grünblau    und sehr echt  werden.  



       Beispiel:     In 10000 Teilen     Alkohol    werden 293  Teile     1-Brom-2,1-thionaphthis.atin    und 200  Teile     2,3-Naphththioindoxyl    eingetragen und       hierauf    die Mischung längere Zeit am Rück  ilusskühler gekocht. Der gebildete Farbstoff  wird filtriert, gewaschen und getrocknet.  



  380 Teile des so erhaltenen     Farbstoffes       werden bei 0   bis 5   in eine Mischung von  9000 Teilen 98     %iger    Schwefelsäure mit 144  Teilen Brom eingetragen und 12     Stunden    bei  gewöhnlicher     Temperatur    gerührt. Hierauf  wird auf Eis ausgetragen, der abgeschiedene  Farbstoff filtriert und getrocknet.



  <B> Additional patent </B> to main patent no. <B> 100705. </B> Process for the production of a new indigoid dye. It has been found that a new indigoid.en dye is obtained if 1-bromo-2,3-thionaphthisatin (which can be obtained by condensing 1-bromo-2-thionaphihol with oxalyl chloride) with 2,3- Naphthioindoxyl condenses and the product thus obtained is brominated.



  The new dye forms a green-blue powder, dissolves in concentrated sulfuric acid with a green color, gives an orange vat with hydrosulphite and sodium hydroxide solution and it produces dyeings on cotton that turn green-blue and very real after soaking.



       Example: 293 parts of 1-bromo-2,1-thionaphthis.atin and 200 parts of 2,3-naphththioindoxyl are added to 10,000 parts of alcohol and the mixture is then boiled for a long time on the reflux cooler. The dye formed is filtered, washed and dried.



  380 parts of the dye thus obtained are introduced at 0 to 5 into a mixture of 9000 parts of 98% strength sulfuric acid with 144 parts of bromine and the mixture is stirred for 12 hours at ordinary temperature. It is then poured onto ice, and the deposited dye is filtered and dried.

Claims (1)

PATENTANSPRUCH: -Verfahren zur Herstellung eines neuen indigoiden Farbstoffes, dadurch gek ennzeich- net, dass man 1-Brom-2,3-thionaphthisatin mit 2,3-Naphtthioindoxyl kondensiert und das so erhaltene Produkt bromiert. Der neue Farbstoff bildet ein grünblaues Pulver, löst sich in konzentrierter Sehwefel- säure mit grüner Farbe, PATENT CLAIM: -Process for the production of a new indigoid dye, characterized in that 1-bromo-2,3-thionaphthisatin is condensed with 2,3-naphthioindoxyl and the product obtained in this way is brominated. The new dye forms a green-blue powder, dissolves in concentrated sehulphuric acid with a green color, gibt mit Hydrosulfit und Natronlauge eine orange Küpe und er zeugt auf Baumwolle Färbungen, welche nach .dem Seifen grünblau und sehr echt wenden. gives an orange vat with hydrosulphite and caustic soda and it produces dyeings on cotton which turn green-blue and very real after soaping.
CH106434D 1922-11-18 1922-12-07 Process for the production of a new indigoid dye. CH106434A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH106434T 1922-12-07

Publications (1)

Publication Number Publication Date
CH106434A true CH106434A (en) 1924-09-01

Family

ID=25705849

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106434D CH106434A (en) 1922-11-18 1922-12-07 Process for the production of a new indigoid dye.

Country Status (1)

Country Link
CH (1) CH106434A (en)

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