CH148498A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

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Publication number
CH148498A
CH148498A CH148498DA CH148498A CH 148498 A CH148498 A CH 148498A CH 148498D A CH148498D A CH 148498DA CH 148498 A CH148498 A CH 148498A
Authority
CH
Switzerland
Prior art keywords
production
vat
dye
vat dye
carriers
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 CH148498A publication Critical patent/CH148498A/en

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Description

  

  Verfahren zur Herstellung eines     güpenfarbstoffes.       Es wurde gefunden, dass man einen wert  vollen     Küpenfarbstoff    der     Benzanthron-          pyrazolanthronreihe    erhalten kann,     wenn     man 1     Mol.        Benzanthronpyrazolanthron    mit  mindestens     1/2        Mol.    eines     bromierend    wirken  den. Mittels in Gegenwart von ,sauren anor  ganischen     Verdünnungsmitteln,    und von       Überträgern    behandelt.  



  Der erhaltene Farbstoff, der Analyse nach  ein     Monobro#mderivat,    löst sich mit violetter  Farbe in konzentrierter     Schwefelsäure    und       liefert    aus blauer     Küpe    auf Baumwolle  marineblaue Färbungen von guten Echtheits  eigenschaften.  



  <I>Beispiel:</I>  45 Teile     Benzanthronpyrazolanthron    wer  den in 450 Teilen     Chlorsulfonsäure    unter  Rühren gelöst. Nach Zugabe von 0,5 Tei  len Jod und 10 Teilen Brom     erwärmt    man  auf 40   C und .hält solange bei dieser Tem  peratur, bis alles Brom aufgenommen ist.  Dann lässt man erkalten und arbeitet in der  üblichen Weise auf. An Stelle von Chlor-         sulfonsäure    kann man auch konzentrierte  Schwefelsäure,     Oleum,    Phosphorsäure     ete.     verwenden. Statt Jod kann man zum Bei  spiel Schwefel, Selen, Quecksilber, Mangan,  Nickel, Antimon     etc.    als Überträger benüt  zen.



  Process for the production of a liquid dye. It has been found that a valuable vat dye of the benzanthrone pyrazole anthrone series can be obtained if 1 mol of benzanthrone pyrazole anthrone is used with at least 1/2 mol of a brominating agent. Means treated in the presence of, acidic inorganic diluents and carriers.



  The dye obtained, which is analyzed according to a monobromide derivative, dissolves with a violet color in concentrated sulfuric acid and, from a blue vat on cotton, provides navy blue dyeings with good fastness properties.



  <I> Example: </I> 45 parts of benzanthrone pyrazole anthrone are dissolved in 450 parts of chlorosulfonic acid with stirring. After adding 0.5 parts of iodine and 10 parts of bromine, the mixture is heated to 40 ° C. and maintained at this temperature until all the bromine has been absorbed. Then you let it cool down and work up in the usual way. Instead of chlorosulphonic acid, you can also use concentrated sulfuric acid, oleum, phosphoric acid, etc. use. Instead of iodine, for example, sulfur, selenium, mercury, manganese, nickel, antimony, etc. can be used as carriers.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines. Küpen- farbstoffes, dadurch gekennzeichnet, dass man 1 Mol. Benzanthronpyrazolanthron mit min destens 1/2 M01. eines bromieren:d wirken den Mittels in Gegenwart von sauren an organischen Verdünnungsmitteln und von Überträgern behandelt. PATENT CLAIM: Process for producing a. Vat dye, characterized in that 1 mol. Benzanthronpyrazolanthron with at least 1/2 M01. one brominate: d act the agent in the presence of acidic organic diluents and treated by carriers. Der erhaltene Farbstoff, der Analyse nach ein Monobromderivat, löst. sich mit vio letter Farbe in konzentrierter Schwefelsäure und liefert aus blauer Küpe auf Baumwolle marineblaue Färbungen von guten Echtheits eigenschaften. The dye obtained, which is analyzed according to a monobromo derivative, dissolves. with vio letter color in concentrated sulfuric acid and delivers navy blue dyeings with good fastness properties from a blue vat on cotton.
CH148498D 1929-04-27 1930-04-22 Process for the production of a vat dye. CH148498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE148498X 1929-04-27

Publications (1)

Publication Number Publication Date
CH148498A true CH148498A (en) 1931-07-31

Family

ID=5672741

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148498D CH148498A (en) 1929-04-27 1930-04-22 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH148498A (en)

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