CH106448A - Process for the production of a new indigoid dye. - Google Patents

Process for the production of a new indigoid dye.

Info

Publication number
CH106448A
CH106448A CH106448DA CH106448A CH 106448 A CH106448 A CH 106448A CH 106448D A CH106448D A CH 106448DA CH 106448 A CH106448 A CH 106448A
Authority
CH
Switzerland
Prior art keywords
production
new
indigoid dye
dye
new indigoid
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 CH106448A publication Critical patent/CH106448A/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
    • C09B7/06—Indone-thionapthene indigos

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     indigoiden    Farbstoffes.    Es     wurde    gefunden,     dass    ein neuer, wert  voller,     indgoider    Farbstoff entsteht, wenn  man das     8-Chlor-2,1-naphththioindoxyl    mit       Dibromisatin    kondensiert.  



  Der neue     Farbstoff    stellt ein     rotviolettes     Pulver .dar,     das    sich in Schwefelsäure mit  dunkelgrüner Farbe löst. Er bildet eine gold  gelbe     Küpe    und 'färbt     Baumwolle    in violetten  Tönen von sehr guter Echtheit.  



  <I>Beispiel:</I>  234,5 Teile     8-Chlor-2,1-naphththioindoxyl     und 305 Teile     5,7-Dibro@mis.atin    werden in  4000 Teilen Alkohol     suspendiert    und nach  Beigabe von 5 Teilen     konzentriertem    Ammo  niak zum Sieden erhitzt. Nach kurzem Ko  chen ist die Kondensation beendigt.     Der    in    sehr guter Ausbeute abgeschiedene Farbstoff  wird filtriert, gewaschen und getrocknet.



  Process for the production of a new indigoid dye. It has been found that a new, valuable, indoid dye is formed when the 8-chloro-2,1-naphthioindoxyl is condensed with dibromoisatin.



  The new dye is a red-violet powder that dissolves in sulfuric acid with a dark green color. It forms a golden yellow vat and dyes cotton in violet shades of very good fastness.



  <I> Example: </I> 234.5 parts of 8-chloro-2,1-naphththioindoxyl and 305 parts of 5,7-Dibro @ mis.atin are suspended in 4000 parts of alcohol and, after adding 5 parts of concentrated ammonia, to the Boiling heated. After a short boil, the condensation is over. The dyestuff deposited in very good yield is filtered, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen indigoiden Farbstoffes, dadurch gekennzeich net, dass man 8-Chlor-2,1-naphththioindoxyl mit Dibromisatin kondensiert. Der neue Farb- gto.ff stellt ein rotviolettes Pulver dar, das sich in Schwefelsäure mit dunkelgrüner Farbe löst. Er bildet eine goldgelbe Küpe und färbt Baumwolle in violetten Tönen von sehr guter Echtheit. PATENT CLAIM: Process for the production of a new indigoid dye, characterized in that 8-chloro-2,1-naphththioindoxyl is condensed with dibromoisatin. The new color gto.ff represents a red-violet powder that dissolves in sulfuric acid with a dark green color. It forms a golden yellow vat and dyes cotton in violet tones with very good fastness.
CH106448D 1922-11-18 1923-04-10 Process for the production of a new indigoid dye. CH106448A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH106448T 1923-04-10

Publications (1)

Publication Number Publication Date
CH106448A true CH106448A (en) 1924-09-01

Family

ID=25705863

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106448D CH106448A (en) 1922-11-18 1923-04-10 Process for the production of a new indigoid dye.

Country Status (1)

Country Link
CH (1) CH106448A (en)

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