[go: up one dir, main page]

CH145330A - Process for the preparation of a vat dye containing chlorine and bromine. - Google Patents

Process for the preparation of a vat dye containing chlorine and bromine.

Info

Publication number
CH145330A
CH145330A CH145330DA CH145330A CH 145330 A CH145330 A CH 145330A CH 145330D A CH145330D A CH 145330DA CH 145330 A CH145330 A CH 145330A
Authority
CH
Switzerland
Prior art keywords
bromine
preparation
vat dye
containing chlorine
dye containing
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH145330A publication Critical patent/CH145330A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines Chlor und Brom enthaltenden     Küpeufarbstofes.       Im Hauptpatent ist ein     Verfahren    zur  Darstellung eines Chlor und Brom ent  haltenden     Küpenfarbstoffes    beschrieben, bei  dem 1 Hol     Isodibenzanthron    in     Gegenwart     von     Chlorsulfonsäure    und von     Katalysatoren     mit mindestens einem halben Hol eines     bro-          mierenden    Mittels behandelt wird.  



  Es wurde nun gefunden, dass man  einen Farbstoff von ähnlichen     Eigenschaften     erhalten     kann.,    wenn man 1 Hol     Isodi-          benzanthron    in Gegenwart von     Chlorsulfon-          säure    und Schwefel mit mindestens 1 Hol  eines     bromierenden    Mittels behandelt.  



  Der erhaltene     Küpenfarbstoff,    ein     Mono-          chlordibromisodibenzanthron,    ist ein violettes  Pulver, löst sich in konzentrierter Schwefel  säure mit gelbgrüner Farbe und liefert auf  Baumwolle aus blauer     Küpe    klare, kräftige,  violette Färbungen von hervorragenden Echt  heitseigenschaften.  



  <I>Beispiel:</I>  Man löst unter Rühren 46 Teile     Isodi-          benzanthron    in 460 Teilen     Chlorsulfonsäure,       gibt 4 Teile Schwefel und 17 Teile     Brom    zu,  erhöht die Temperatur auf 65 bis     7()    "     (',     hält bei dieser Temperatur so lange, bis die  Reaktion beendet ist, lässt erkalten und ar  beitet in der üblichen Weise auf.



  Process for the preparation of a vat dye containing chlorine and bromine. The main patent describes a process for the preparation of a vat dye containing chlorine and bromine, in which 1 pint of isodibenzanthrone is treated in the presence of chlorosulfonic acid and catalysts with at least half a pint of a brominating agent.



  It has now been found that a dye with similar properties can be obtained if 1 pint of isodibenzanthrone is treated in the presence of chlorosulphonic acid and sulfur with at least 1 pint of a brominating agent.



  The vat dye obtained, a monochlorodibromoisodibenzanthrone, is a violet powder, dissolves in concentrated sulfuric acid with a yellow-green color and provides clear, strong, violet dyeings with excellent fastness properties on cotton from a blue vat.



  <I> Example: </I> 46 parts of isodibenzanthrone are dissolved in 460 parts of chlorosulfonic acid with stirring, 4 parts of sulfur and 17 parts of bromine are added, the temperature is increased to 65 to 7 "(', held at this temperature until the reaction has ended, lets cool and works in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Chlor und Brom enthaltenden Küpenfarbstoffes. da durch gekennzeichnet, dass man 1 Mol Isodi- benzanthron in Gegenwart von Chlorsulfon- säure und Schwefel mit mindestens 1 iTIol eines bromierenden Mittels behandelt. PATENT CLAIM: Process for the preparation of a vat dye containing chlorine and bromine. characterized in that 1 mol of isodibenzanthrone is treated in the presence of chlorosulphonic acid and sulfur with at least 1 iTIol of a brominating agent. Der erhaltene Küpenfarbstoff, ein 37Torio- chlordibromisodibenzanthron, ist ein violeltus Pulver, löst sich in konzentrierter Schwefel säure mit gelbgrüner Farbe und liefert auf Baumwolle aus blauer Küpe klare. kräftige. violette Färbungen von hervorragenden Echt heitseigenschaften. The vat dye obtained, a 37Torio- chlordibromisodibenzanthron, is a violeltus powder, dissolves in concentrated sulfuric acid with a yellow-green color and gives clear cotton from a blue vat. strong. violet colors with excellent fastness properties.
CH145330D 1928-03-13 1929-03-12 Process for the preparation of a vat dye containing chlorine and bromine. CH145330A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE145330X 1928-03-13
CH141548T 1929-03-12

Publications (1)

Publication Number Publication Date
CH145330A true CH145330A (en) 1931-02-15

Family

ID=25713850

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145330D CH145330A (en) 1928-03-13 1929-03-12 Process for the preparation of a vat dye containing chlorine and bromine.

Country Status (1)

Country Link
CH (1) CH145330A (en)

Similar Documents

Publication Publication Date Title
CH145330A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145341A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145339A (en) Process for the preparation of a vat dye containing chlorine and bromine.
DE510600C (en) Process for the preparation of halogen-containing cow dyes of the dibenzanthrone and isodibenzanthrone series
CH145345A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145343A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145344A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145334A (en) Process for the preparation of a vat dye containing chlorine and bromine.
DE568034C (en) Process for the production of condensation products
CH145338A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145329A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145337A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145342A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145347A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH145333A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH137127A (en) Process for the preparation of a valuable vat dye.
CH145340A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH147705A (en) Process for the preparation of a derivative of 3.4.8.9-dibenzpyrene-5.10-quinone.
CH120160A (en) Process for the production of a new dye.
CH120172A (en) Process for the production of a new dye.
CH178429A (en) Process for the production of a vat dye.
CH120168A (en) Process for the production of a new dye.
CH145332A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH120155A (en) Process for the production of a new dye.
CH173744A (en) Process for the production of a vat dye.