[go: up one dir, main page]

AT55381B - Process for the preparation of monoazo dyes. - Google Patents

Process for the preparation of monoazo dyes.

Info

Publication number
AT55381B
AT55381B AT55381DA AT55381B AT 55381 B AT55381 B AT 55381B AT 55381D A AT55381D A AT 55381DA AT 55381 B AT55381 B AT 55381B
Authority
AT
Austria
Prior art keywords
preparation
dyes
monoazo dyes
naphthol
sulfonic acids
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.)
Filing date
Publication date
Application filed by Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT55381B publication Critical patent/AT55381B/en

Links

Landscapes

  • Coloring (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von Monoazofarbstoffen. 



   In der   Stammpatentschrift   Nr. 49572 sind Farbstoffe beschrieben, die bei gutem   Egalisierungsvermögpn   sehr gut   wasch-und walkochte Färbungen   liefern. Diese Farbstoffe werden erhalten, indem man die Diazoverbindungen von Aminoarylsulfonamiden und deren Derivaten mit den Sulfosäuren des a-und-Naphtols vereinigt. 



   Es wurde nun gefunden, dass man zu Farbstoffen von gleich guten Echtheiteigenschaften gelangt, wenn man die im Verfahren des Stammpatentes benutzten Naphtolsulfosäuren durch   azidylierte Aminonaphtolsulfosäuren   ersetzt. 



   Beispiel. 



   29'2 Teile 2-Toluidin-4-sulfo-o-anisidid werden in die   Diazoverbindung übergeführt   und die erhaltene Diazolösung einer mit überschüssiger Soda versetzten Auflösung von   si   Teilen 2-azetylamino-5-naphtol-7-sulfosaurem Natrium zugefügt. Der Farbstoff wird in üblicher Weise isoliert und getrocknet. Er färbt Wolle in lebhaften orangen Tönen ar und ist durch gutes Egalisierungsvormögen und gute Walkechtueit ausgezeichnet. Durch Ersatz des 2-Toluidin-4-sulfo-o-anisidids durch andere   Aminoarylsolfonamide ode- tier   2-Azetylamino-5-naphtol-7-sulfosäure durch andere   Azidylaminonaphtolsulfosäuren   werden Farbstoffe erhalten, die sich von dem Farbstoff des Beispiels durch ihre Nuancen unterscheiden, in den sonstigen Eigenschaften aber damit übereinstimmen. So gibt z.

   B. 4-Toluidin- 
 EMI1.1 
 4-Toluidin-2-sulfanilid + 1-Benzoylamino-8-naphtol-3,6-disulfosäure ein blaustichiges Rot. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of monoazo dyes.



   The parent patent specification No. 49572 describes dyes which, with good leveling capacity, give washable and water-boiled dyeings very well. These dyes are obtained by combining the diazo compounds of aminoarylsulfonamides and their derivatives with the sulfonic acids of α-and-naphthol.



   It has now been found that dyes with equally good fastness properties are obtained if the naphthol sulfonic acids used in the process of the parent patent are replaced by acidylated aminonaphthol sulfonic acids.



   Example.



   29'2 parts of 2-toluidine-4-sulfo-o-anisidide are converted into the diazo compound and the diazo solution obtained is added to a solution of two parts of 2-acetylamino-5-naphthol-7-sulfonic acid sodium to which an excess of soda is added. The dye is isolated and dried in the usual way. It dyes wool in lively orange tones and is characterized by good leveling properties and good flexfastness. By replacing 2-toluidine-4-sulfo-o-anisidide with other aminoarylsulfonamides or 2-acetylamino-5-naphthol-7-sulfonic acid with other azidylaminonaphthol sulfonic acids, dyes are obtained which differ from the dye of the example in their nuances, but agree with it in the other properties. So there are

   B. 4-toluidine
 EMI1.1
 4-toluidine-2-sulfanilide + 1-benzoylamino-8-naphthol-3,6-disulfonic acid a bluish red.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : EMI1.2 stellung von Monoazofarbstoffen, dadurch gekennzeichnet, dass man die dort benutzten Diazoverbindungen von Aminoarylslllfonamidfm hier auf Azidylaminonaphtolsulfosäuren einwirken lässt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.2 Position of monoazo dyes, characterized in that the diazo compounds of aminoarylslllfonamidfm used there are allowed to act here on azidylaminonaphthol sulfonic acids. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT55381D 1909-12-30 1911-05-15 Process for the preparation of monoazo dyes. AT55381B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE49572X 1909-12-30
DE55381X 1910-07-04

Publications (1)

Publication Number Publication Date
AT55381B true AT55381B (en) 1912-09-10

Family

ID=25749082

Family Applications (1)

Application Number Title Priority Date Filing Date
AT55381D AT55381B (en) 1909-12-30 1911-05-15 Process for the preparation of monoazo dyes.

Country Status (1)

Country Link
AT (1) AT55381B (en)

Similar Documents

Publication Publication Date Title
AT55381B (en) Process for the preparation of monoazo dyes.
AT22661B (en) Process for the preparation of yellow disazo dyes for wool.
AT58406B (en) Process for the representation of etchable azo dyes on the fiber.
AT72640B (en) Process for the preparation of mordant dyes.
AT72940B (en) Process for the preparation of yellow chromating dyes.
DE462212C (en) Process for the preparation of o-oxyazo dyes
AT39956B (en) Process for the preparation of a water-insoluble monoazo dye.
AT71683B (en) Process for the preparation of azo dyes.
AT41815B (en) Process for the preparation of an insoluble monoazo dye.
DE235775C (en)
AT73199B (en) Process for the preparation of milled yellow disazo dyes for wool.
AT44440B (en) Process for the preparation of red substantive disazo dyes.
AT56178B (en) Process for the production of azo dyes.
AT37561B (en) Process for the preparation of secondary disazo dyes.
AT107575B (en) Process for the preparation of monoazo dyes.
AT43177B (en) Process for the preparation of o-oxymonoazo dyes.
DE501108C (en) Process for the preparation of acid dyes of the diphenylnaphthylmethane series that can be chromated
AT40668B (en) Process for the preparation of trisazo dyes.
AT65899B (en) Process for the preparation of yellow disazo dyes for cotton.
DE548614C (en) Process for the preparation of trisazo dyes
CH135390A (en) Process for the production of a new azo dye.
CH136254A (en) Process for the preparation of an o-oxyazo dye.
CH222693A (en) Process for the preparation of a monoazo dye.
CH222697A (en) Process for the preparation of a monoazo dye.
CH222692A (en) Process for the preparation of a monoazo dye.