CH213910A - Process for the production of an indigoid vat dye. - Google Patents

Process for the production of an indigoid vat dye.

Info

Publication number
CH213910A
CH213910A CH213910DA CH213910A CH 213910 A CH213910 A CH 213910A CH 213910D A CH213910D A CH 213910DA CH 213910 A CH213910 A CH 213910A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
brown
dye
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 CH213910A publication Critical patent/CH213910A/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)
  • Indole Compounds (AREA)

Description

  

  Verfahren zur Herstellung eines     indigoiden        Nüpenfarbstoffes.       Es wurde gefunden, dass ein neuer,     in-          digoider        Küpenfarbstoff    hergestellt werden  kann, wenn man     2,1-Naphththioindoxyl    mit       6-Chlor-7-methylisatin    kondensiert.  



  Der erhaltene     Farbstoff    stellt ein braunes  Pulver dar, das sich in konzentrierter Schwe  felsäure mit blauer Farbe löst und Baum  wolle aus gelbbraun gefärbter     Küpe    in klaren  rotbraunen Tönen färbt.  



  Die Kondensation kann nach bekannten  Methoden,     beispielsweise    in organischen Lö  sungsmitteln, vorgenommen werden, wie Al  kohol, Eisessig, Benzol oder Chlorbenzol. Mit  besonderem Erfolg kann die Kondensation in  Schwefelsäure durchgeführt werden.  



       Beispiel:     195,5 Teile 6 -Chlor- 7     -methylisatin    und  200 Teile     2,1-Naphththioindoxyl    werden in         15000        Teilen        Schwefelsäure        94        %        bei        10        bis     <B>150</B>     verrührt,    bis die Kondensation beendigt  ist. Hierauf wird auf Eiswasser ausgetragen,       filtriert,    säurefrei gewaschen und getrocknet.



  Process for the production of an indigoid pimple dye. It has been found that a new, digoid vat dye can be produced if 2,1-naphththioindoxyl is condensed with 6-chloro-7-methylisatin.



  The dye obtained is a brown powder which dissolves in concentrated sulfuric acid with a blue color and dyes cotton from a yellow-brown vat in clear red-brown tones.



  The condensation can be carried out by known methods, for example in organic solvents, such as alcohol, glacial acetic acid, benzene or chlorobenzene. The condensation in sulfuric acid can be carried out with particular success.



       Example: 195.5 parts of 6-chloro-7-methylisatin and 200 parts of 2,1-naphththioindoxyl are stirred in 15,000 parts of 94% sulfuric acid at 10 to 150, until the condensation is complete. It is then poured onto ice water, filtered, washed free of acid and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines indigoiden Küpenfarbstoffes, dadurch gekennzeichnet, dass man 2,1- Naphththioindoxyl mit 6 -Chlor - 7 - methylisatin kondensiert. Der erhaltene Farbstoff stellt ein braunes Pulver dar, das sich in konzentrierter Schwe felsäure mit blauer Farbe löst und Baumwolle aus gelbbraun gefärbter Küpe in klaren rot braunen Tönen färbt. Claim: Process for the production of an indigoid vat dye, characterized in that 2,1-naphththioindoxyl is condensed with 6-chloro-7-methylisatin. The dye obtained is a brown powder which dissolves in concentrated sulfuric acid with a blue color and dyes cotton from a yellow-brown vat in clear red-brown tones.
CH213910D 1939-05-13 1939-05-13 Process for the production of an indigoid vat dye. CH213910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH213910T 1939-05-13

Publications (1)

Publication Number Publication Date
CH213910A true CH213910A (en) 1941-03-31

Family

ID=4448464

Family Applications (1)

Application Number Title Priority Date Filing Date
CH213910D CH213910A (en) 1939-05-13 1939-05-13 Process for the production of an indigoid vat dye.

Country Status (1)

Country Link
CH (1) CH213910A (en)

Similar Documents

Publication Publication Date Title
CH213910A (en) Process for the production of an indigoid vat dye.
CH215591A (en) Process for the production of an indigoid vat dye.
CH215592A (en) Process for the production of an indigoid vat dye.
CH163280A (en) Process for the production of a new vat dye.
CH104929A (en) Process for the production of a new indigoid dye.
CH184196A (en) Process for the production of an indigoid vat dye.
CH165049A (en) Process for the production of a new vat dye.
CH165050A (en) Process for the production of a new vat dye.
CH174893A (en) Process for the production of a new vat dye.
CH174898A (en) Process for the production of a new vat dye.
CH150619A (en) Process for the production of a new chlorine-containing dye of the dibenzanthrone series.
CH179682A (en) Process for the production of a new vat dye.
CH156023A (en) Process for the production of a new vat dye.
CH165051A (en) Process for the production of a new vat dye.
CH174899A (en) Process for the production of a new vat dye.
CH222156A (en) Process for the preparation of a new dye of the anthraquinone series.
CH222473A (en) Process for the production of a vat dye.
CH146439A (en) Process for the production of a vat dye of the benzanthrone series.
CH156027A (en) Process for the production of a new vat dye.
CH182294A (en) Process for the production of a vat dye.
CH165056A (en) Process for the production of a new vat dye.
CH174895A (en) Process for the production of a new vat dye.
CH156659A (en) Process for the preparation of a new metal-containing dye.
CH106451A (en) Process for the production of a new indigoid dye.
CH216319A (en) Process for the production of an acidic wool dye.