CH150924A - Process for the production of a vat dye. - Google Patents

Process for the production of a vat dye.

Info

Publication number
CH150924A
CH150924A CH150924DA CH150924A CH 150924 A CH150924 A CH 150924A CH 150924D A CH150924D A CH 150924DA CH 150924 A CH150924 A CH 150924A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
vat
bromine
dyed
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 CH150924A publication Critical patent/CH150924A/en

Links

Landscapes

  • Coloring (AREA)
  • Pyridine Compounds (AREA)

Description

  

      Ycrfaliren    zur Herstellung eines     Küpenfarbstofes.       Es wurde gefunden, dass man einen wert  vollen     Küpenfarbstoff    erhält, wenn man       Pyridinopyranthron,    das nach dem Verfahren  des     schweiz.    Patentes Nr. 149413 erhalten  werden kann, mit einem     bromierend    wirken  den     Mittel    bis zur     Aufnahme    von 2 Atomen  Brom behandelt. Man kann hierbei in     Gegen-           #art    von Katalysatoren, wie Jod, Eisen, Alu  ininiumchlorid,     Schwefel        etc.,    arbeiten.  



  Das     Reaktionsprodukt    löst sich in kon  zentrierter Schwefelsäure mit blauer Farbe  und     liefert    eine violette     Küpe,    aus der die       pflanzliche    Faser in klaren, kräftigen,     bor-          clea,uxroten    Tönen von sehr guter Echtheit  gefärbt wird.         Beispiel:     460 Teile des gemäss -des Patentes 149413  dargestellten     Pyridinopyranthrons    werden in       :1000    Teilen     Chlorsulfonsäure    unter Rühren  gelöst und nach Zugabe von 40 Teilen Schwe  fel und 200 Teilen Brom langsam auf 60    bis<B>6 5</B>   C erhitzt.

   Man hält bei     dieser    Tem  peratur so lange, bis alles Brom aufgenom  men, lässt dann erkalten und arbeitet in der  üblichen Weise auf.



      Ycrfaliren for making a vat dye. It has been found that a valuable vat dye is obtained if one uses pyridinopyranthrone, which is produced using the Swiss method. Patent No. 149413 can be obtained, treated with a brominating agent up to the absorption of 2 atoms of bromine. You can work in the opposite #art of catalysts such as iodine, iron, aluminum chloride, sulfur, etc.



  The reaction product dissolves in concentrated sulfuric acid with a blue color and yields a violet vat from which the vegetable fiber is dyed in clear, strong, borclea, ux-red shades of very good fastness. Example: 460 parts of the pyridinopyranthrone shown according to patent 149413 are dissolved in: 1000 parts of chlorosulfonic acid with stirring and, after the addition of 40 parts of sulfur and 200 parts of bromine, slowly heated to 60 to 65.degree.

   You hold at this temperature until all the bromine is absorbed, then let it cool down and work up in the usual way.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man P,yridinopyranthron, das nach dem Verfahren des schweiz. Patentes Nr.149413 erhalten werden kann, mit einem bromierend wirken den Mittel bis zur Aufnahme von 2 Atomen Brom behandelt. Das Reaktionsprodukt löst sich in kon zentrierter Schwefelsäure mit blauer Farbe und liefert eine violette Küpe, aus der die pflanzliche Faser in klaren, kräftigen, bor deauxroten Tönen von sehr guter Echtheit gefärbt wird. PATENT CLAIM: Process for the production of a vat dye, characterized in that P, yridinopyranthrone, which is produced by the process of Switzerland. Patent No. 149413 can be obtained with a brominating agent treated up to the absorption of 2 atoms of bromine. The reaction product dissolves in concentrated sulfuric acid with a blue color and provides a violet vat from which the vegetable fiber is dyed in clear, strong, borealux red shades of very good fastness.
CH150924D 1929-06-21 1930-06-20 Process for the production of a vat dye. CH150924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE150924X 1929-06-21

Publications (1)

Publication Number Publication Date
CH150924A true CH150924A (en) 1931-11-30

Family

ID=5674191

Family Applications (1)

Application Number Title Priority Date Filing Date
CH150924D CH150924A (en) 1929-06-21 1930-06-20 Process for the production of a vat dye.

Country Status (1)

Country Link
CH (1) CH150924A (en)

Similar Documents

Publication Publication Date Title
CH150924A (en) Process for the production of a vat dye.
DE717856C (en) Process for the production of sulfur dyes
CH145344A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH109647A (en) Process for the production of a new vat dye.
CH149907A (en) Process for the preparation of a vat dye.
CH145339A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH120163A (en) Process for the production of a new dye.
CH154050A (en) Process for the preparation of a vat dye.
CH150619A (en) Process for the production of a new chlorine-containing dye of the dibenzanthrone series.
CH154421A (en) Process for the preparation of a new vat dye.
CH173744A (en) Process for the production of a vat dye.
CH178429A (en) Process for the production of a vat dye.
CH145329A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH120155A (en) Process for the production of a new dye.
CH141548A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH109649A (en) Process for the production of a new vat dye.
CH109628A (en) Process for the production of a new vat dye.
CH145333A (en) Process for the preparation of a vat dye containing chlorine and bromine.
CH109639A (en) Process for the production of a new vat dye.
CH109630A (en) Process for the production of a new vat dye.
CH120172A (en) Process for the production of a new dye.
CH146440A (en) Process for the preparation of a vat dye.
CH171715A (en) Process for the preparation of an anthraquinone derivative.
CH109637A (en) Process for the production of a new vat dye.
CH145345A (en) Process for the preparation of a vat dye containing chlorine and bromine.