CH116284A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH116284A
CH116284A CH116284DA CH116284A CH 116284 A CH116284 A CH 116284A CH 116284D A CH116284D A CH 116284DA CH 116284 A CH116284 A CH 116284A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
brownish
violet
red fluorescence
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Kalle Co
Original Assignee
Kalle & Co Ag
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 Kalle & Co Ag filed Critical Kalle & Co Ag
Publication of CH116284A publication Critical patent/CH116284A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/22—Dibenzanthrones; Isodibenzanthrones
    • C09B3/30—Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>113920.</B>    Verfahren zur Darstellung eines     Küpenfarbstoffes.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines     Küpenfarb,-          stoffes    aus     Monochlordibenzantliron,    das  durch Chlorieren von     Dibenzantliron    in bei  spielsweise     Clilorsulionsäure    bis zur     Mono-          chlorstufe    erhältlich ist,

   und     p-Toluidin.     Das Verfahren wird zum Beispiel folgender  massen     ausgeführt-          10    Teile chloriertes     Dibenzauthron    mit  einem Gehalt von<B>7,2</B>     '/o    Chlor werden mit  <B>80</B> Teilen     p-Toluidin    unter Zusatz von<B>8</B> Tei  len     ealeinierter    Soda<B>25</B> Stunden unter     Rüll-          ren    zum Sieden erhitzt. Zur Isolierung des  entstandenen neuen Farbstoffes kann man  nach dem Abkühlen auf etwa<B>80'</B> mit<B>Al-</B>  kohol verdünnen, absaugen, mit Alkohol und  Wasser waschen und trocknen.  



  Der in Pulverform     seliwarze    Farbstoff  ist in Alkalien und Säuren unlöslich. Die  Lösungsfarbe in konzentrierter Schwefel  säure ist -violett, in organischen Lösungs  mitteln violett bis blau mit braunroter    Fluoreszenz. Die     Hydrosulfitküpe    ist violett  mit braunroter Fluoreszenz. Auf Baumwolle  erhält man ein echtes Blau.



  Additional patent to main patent no. <B> 113920. </B> Process for the preparation of a vat dye. The subject of this additional patent is a process for the preparation of a vat dye made of monochlorodibenzantlirone, which can be obtained by chlorinating dibenzantlirone in, for example, chlorosulionic acid up to the monochlorine stage

   and p-toluidine. The process is carried out, for example, as follows- 10 parts of chlorinated dibenzauthrone with a content of 7.2 '/ o chlorine are mixed with 80 parts of p-toluidine with the addition of <B > 8 </B> parts eaten soda <B> 25 </B> hours heated to the boil with roaring. To isolate the resulting new dye, after cooling to about <B> 80 '</B>, it can be diluted with <B> Al </B> alcohol, vacuumed off, washed with alcohol and water and dried.



  The dye, which is black in powder form, is insoluble in alkalis and acids. The solution color in concentrated sulfuric acid is violet, in organic solvents violet to blue with brownish-red fluorescence. The hydrosulfite vat is purple with brownish-red fluorescence. On cotton you get a real blue.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man Monochlordibenzanthron, das durch Chlorieren von -Dibenzanthron -in beispiels weise Chlorsulfonsäure bis zur Monoclilor- stufe erhältlieli ist, mit p-Toluidin umsetzt. Der in Pulverform schwarze Farbstoff ist in Alkalien und Säuren unlöslich. <B> PATENT CLAIM: </B> Process for the preparation of a vat dye, characterized in that monochlorodibenzanthrone, which is obtained by chlorinating -dibenzanthrone -in, for example, chlorosulfonic acid up to the monoclilor stage, is reacted with p-toluidine. The powdered black dye is insoluble in alkalis and acids. Die Lösungsfarbe in konzentrierter Schwefel säure ist violett, in organischen Lösungs mitteln violett bis blau mit braunroter Fluoreszenz. Die Hydrosulfithüpe ist violett mit braunroter Fluoreszenz. Auf Baumwolle erhält man ein echt-es Blau. The solution color in concentrated sulfuric acid is violet, in organic solvents it is violet to blue with brownish-red fluorescence. The hydrosulfite cap is purple with brownish-red fluorescence. On cotton you get a real blue.
CH116284D 1925-01-26 1925-01-26 Process for the preparation of a vat dye. CH116284A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH113920T 1925-01-26
CH116284T 1925-01-26

Publications (1)

Publication Number Publication Date
CH116284A true CH116284A (en) 1926-08-16

Family

ID=25708247

Family Applications (1)

Application Number Title Priority Date Filing Date
CH116284D CH116284A (en) 1925-01-26 1925-01-26 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH116284A (en)

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