AT45895B - Process for the preparation of olive to black-brown vat dyes of the anthracene series. - Google Patents

Process for the preparation of olive to black-brown vat dyes of the anthracene series.

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Publication number
AT45895B
AT45895B AT45895DA AT45895B AT 45895 B AT45895 B AT 45895B AT 45895D A AT45895D A AT 45895DA AT 45895 B AT45895 B AT 45895B
Authority
AT
Austria
Prior art keywords
sep
black
olive
brown
preparation
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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.)
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Publication date
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT45895B publication Critical patent/AT45895B/en

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Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



   Es wurde gefunden, dass die Merkaptane, bezw. Disulfide des Anthrachinons durch Schmelzen mit Schwefel bei höherer Temperatur unter Entwicklung von Schwefelwasser- 
 EMI1.2 
 werden, sondern Küpen liefern, in welchen sie sich auf der Faser fixieren lassen. Durch Spülen oder nachträgliche Oxydation erhält man olive-bis schwarzhraune Färbungen von hervorragender Echtheit. 



   Die neuen Farbstoffe stellen schwarze Pulver dar, welche in Wasser, Alkali, Schwefelalkali und organischen Lösungsmitteln unlöslich, in konzentrierter Schwefelsäure nur schwer,   leichter   in Oleum löslich sind. 



   Beispiel :
1 Teil Anthrachinon-1-merkaptan (oder Anthrachinon-1-disulfid) wird in R Teile geschmol- 
 EMI1.3 
 lebhafte Schwefelwasserstoffentwicklung ein, die   nach vollendeter Diidung   des   Disultids ihr   Ende erreicht. Bei ca.   2700 beginnt llntE'r   erneuter   Gasentwicklung   die eigentliche 
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 Die erkaltete Schmelze wird gepulvert, durch Erwärmen mit   Schwefelnatriumlösung von   Schwefel befreit, abgesaugt und ausgewaschen. Der zurückbleibende Farbstoff ist ein schwarzes Pulvei. Eigenschaften siehe Tabelle. 



   Ersetzt man das   Anthrachinon-I-merkaptan   durch das 2-Merkaptan und steigert die Temperatur der   Schmelze   bis auf   3f) 0".   so erhält man einen ähnlichen Farbstoff. Auch andere Anthrachinonmerkaptane oder ihre Derivate liefern derartige Küpenfarbstoffe. 



   Die Eigenschaften einiger solcher Produkte sind in folgender Tabelle angegeben : 
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<tb> 
<tb> Lösung <SEP> in <SEP> Färbung <SEP> auf
<tb> Farbstoff <SEP> aus <SEP> Kupe
<tb> 20%igem <SEP> Oleum <SEP> Baumwolle
<tb> 1. <SEP> Anthrachinon-1-merkaptan <SEP> . <SEP> . <SEP> . <SEP> . <SEP> brann <SEP> kaffeebraun <SEP> olivegran
<tb> 2. <SEP> Anthrachinon-2-merkaptan <SEP> . <SEP> . <SEP> . <SEP> brann <SEP> kaffeebraun <SEP> olivegran
<tb> 3. <SEP> Anthrachinon-1,5-dimerkaptan <SEP> . <SEP> . <SEP> . <SEP> . <SEP> schwarzbrann <SEP> violettbraun <SEP> olive
<tb> graubraun <SEP> bis
<tb> 4. <SEP> 2 <SEP> Methylauthrachinon-1-merkaptan. <SEP> . <SEP> . <SEP> . <SEP> grünlichgran <SEP> kaffeebrann
<tb> schwarzbraun
<tb> braubraun <SEP> bis
<tb> 5. <SEP> 4-Aminoanthrachi@on-1-merkaptan <SEP> .

   <SEP> rötlichbraun <SEP> rotbraun
<tb> schwarzbraun
<tb> graubraun <SEP> bis
<tb> 6 <SEP> 5-Aminoauthrachinon-1-merkaptan. <SEP> . <SEP> . <SEP> . <SEP> korintbrot <SEP> braunrot
<tb> schwarzbrann.
<tb> 




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   It was found that the mercaptans, respectively. Disulfides of anthraquinone by melting with sulfur at a higher temperature with the development of sulfur water
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 but deliver vats in which they can be fixed on the fiber. Rinsing or subsequent oxidation gives olive to black-lime dyeings of excellent fastness.



   The new dyes are black powders, which are insoluble in water, alkali, alkali sulfur and organic solvents, are only sparingly soluble in concentrated sulfuric acid and more easily soluble in oleum.



   Example:
1 part of anthraquinone-1-mercaptan (or anthraquinone-1-disulfide) is melted into R parts.
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 vigorous evolution of hydrogen sulfide, which comes to an end when the disultide is complete. At approx. 2700, the actual gas evolution begins again
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 The cooled melt is powdered, freed from sulfur by heating with sodium sulphide solution, sucked off and washed out. The remaining dye is a black powder egg. Properties see table.



   If the anthraquinone-I-mercaptan is replaced by the 2-mercaptan and the temperature of the melt is increased to 3f) 0 ". A similar dye is obtained. Other anthraquinone mercaptans or their derivatives also produce such vat dyes.



   The characteristics of some such products are given in the following table:
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<tb>
<tb> Solution <SEP> in <SEP> coloring <SEP> on
<tb> Dye <SEP> from <SEP> Kupe
<tb> 20% <SEP> oleum <SEP> cotton
<tb> 1. <SEP> Anthraquinone-1-mercaptan <SEP>. <SEP>. <SEP>. <SEP>. <SEP> brann <SEP> coffee brown <SEP> olive-gran
<tb> 2. <SEP> Anthraquinone-2-mercaptan <SEP>. <SEP>. <SEP>. <SEP> brann <SEP> coffee brown <SEP> olive-gran
<tb> 3. <SEP> Anthraquinone-1,5-dimerkaptan <SEP>. <SEP>. <SEP>. <SEP>. <SEP> black brand <SEP> violet brown <SEP> olive
<tb> gray-brown <SEP> to
<tb> 4. <SEP> 2 <SEP> Methylauthraquinone-1-mercaptan. <SEP>. <SEP>. <SEP>. <SEP> greenish-granular <SEP> coffee brew
<tb> black-brown
<tb> brown-brown <SEP> to
<tb> 5. <SEP> 4-Aminoanthrachi @ on-1-merkaptan <SEP>.

   <SEP> reddish brown <SEP> reddish brown
<tb> black-brown
<tb> gray-brown <SEP> to
<tb> 6 <SEP> 5-aminoauthraquinone-1-mercaptan. <SEP>. <SEP>. <SEP>. <SEP> korintbrot <SEP> brown-red
<tb> Schwarzbrann.
<tb>


 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung olive-bis schwarzbraaner Küpenfarbstoffe der Anthrazenreihe, dadurch gekennzeichnet, dass man Anthrachinonmerkaptane oder Disulfide mit Schwefel verschmilzt. PATENT CLAIM: Process for the preparation of olive to black-brown vat dyes of the anthracene series, characterized in that anthraquinone mercaptans or disulfides are fused with sulfur.
AT45895D 1909-03-04 1910-02-21 Process for the preparation of olive to black-brown vat dyes of the anthracene series. AT45895B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE45895X 1909-03-04

Publications (1)

Publication Number Publication Date
AT45895B true AT45895B (en) 1911-01-10

Family

ID=5625130

Family Applications (1)

Application Number Title Priority Date Filing Date
AT45895D AT45895B (en) 1909-03-04 1910-02-21 Process for the preparation of olive to black-brown vat dyes of the anthracene series.

Country Status (1)

Country Link
AT (1) AT45895B (en)

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