CH106452A - Process for the production of a new indigoid dye. - Google Patents

Process for the production of a new indigoid dye.

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Publication number
CH106452A
CH106452A CH106452DA CH106452A CH 106452 A CH106452 A CH 106452A CH 106452D A CH106452D A CH 106452DA CH 106452 A CH106452 A CH 106452A
Authority
CH
Switzerland
Prior art keywords
production
new
indigoid dye
dye
bromo
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 CH106452A publication Critical patent/CH106452A/en

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Description

  

      Verfahren    zur Herstellung eines neuen     indigoiden        Farbstoffes.       Es wurde .gefunden, dass ein neuem, wert  voller,     indigoider    Farbstoff entsteht, wenn  man das     1-Brom-2,3-naphththioindoxyl    mit       1-Brom-2,3-thionaphthis,atin    kondensiert.  



  Der .neue Farbstoff stellt ein violettes  Pulver dar,     :dass    sich in Schwefelsäure mit  brauner Farbe löst. Er bildet eine     olive-          bnaune        Küpe    und färbt Baumwolle in blauen  Tönen von sehr guter     Echtheit.       <I>Beispiel:</I>    279 Teile     1-Brom-2,3-naphththioin.dogyl     und 293 Teile     1-Brom-2,1-thionaphthisatin     werden in 4000 Teilen Alkohol suspendiert  und nach Beigabe von 5 Teilen konzentrier  tem     Ammoniak    zum Sieden erhitzt.

   Nach  kurzem Kochen ist die Kondensation been-         digt.    Der in sehr guter Ausbeute     aIgeschie-          dene    Farbstoff wird filtriert, gewaschen und  getrocknet.



      Process for the production of a new indigoid dye. It was found that a new, valuable, indigoid dye is formed when 1-bromo-2,3-naphththioindoxyl is condensed with 1-bromo-2,3-thionaphthisatine.



  The new dye is a violet powder: that dissolves in sulfuric acid with a brown color. It forms an olive-brown vat and dyes cotton in blue tones with very good fastness. <I> Example: </I> 279 parts of 1-bromo-2,3-naphththioin.dogyl and 293 parts of 1-bromo-2,1-thionaphthisatin are suspended in 4000 parts of alcohol and, after adding 5 parts of concentrated ammonia Boiling heated.

   After a short boil, the condensation is over. The dye, which separated out in very good yield, is filtered, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen, indigoiden Farbstoffes, dadurch gekennzeich net, dass man 1-Brom-2,3-naphthlthioindogyl mit 1-Brom-2,3-thionaphthisatin kondensiert. Der neue Farbstoff stellt ein violettes Pulver dar, das sich in Schwefelsäure mit brauner Farbe löst. Er bildet eine olivebraune Küpe und färbt Baumwolle in blauen Tönen von sehr guter Echtheit. PATENT CLAIM: Process for the production of a new, indigoid dye, characterized in that 1-bromo-2,3-naphthioindogyl is condensed with 1-bromo-2,3-thionaphthisatin. The new dye is a purple powder that dissolves in sulfuric acid with a brown color. It forms an olive-brown vat and dyes cotton in blue shades of very good fastness.
CH106452D 1922-11-18 1923-03-29 Process for the production of a new indigoid dye. CH106452A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH106452T 1923-03-29

Publications (1)

Publication Number Publication Date
CH106452A true CH106452A (en) 1924-09-01

Family

ID=25705867

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106452D CH106452A (en) 1922-11-18 1923-03-29 Process for the production of a new indigoid dye.

Country Status (1)

Country Link
CH (1) CH106452A (en)

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