CH151160A - Process for the preparation of a wool dye. - Google Patents

Process for the preparation of a wool dye.

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Publication number
CH151160A
CH151160A CH151160DA CH151160A CH 151160 A CH151160 A CH 151160A CH 151160D A CH151160D A CH 151160DA CH 151160 A CH151160 A CH 151160A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
parts
wool
hol
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 CH151160A publication Critical patent/CH151160A/en

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Description

  

      Verfalwen    zur Darstellung     elues        WoRfarbstoffes.       Wie gefunden wurde, gelangt man zu  einem neuen wertvollen Farbstoff, der Wolle  in gelbbraunen, gut egalisierenden Tönen  von sehr guter     Lielitechtlieit    färbt, wenn  man<B>1</B> Hol.     2.6-Diaminodiplienylamin-4-          suliosäure    mit<B>1</B> Hol. 2. 4.     6-Trinitro-l-          alkoxybenzol    kondensiert.

   Hierbei findet zu  nächst die zu     erwarten-de    Reaktion zwischen  der     Alkoxygruppe    und einer     Aminogruppe     statt, bei weiterem Erhitzen in     Gegen-wart     -von Alkali tritt dann aber unter Abspaltung  von     Alkalinitrit    eine innere Kondensation  ein.  



  <I>Beispiel:</I>  <B>27,9</B> Teile<B>*</B> 2.     6-Diaminodiphenylamin-4-          sulfosäure,    erhalten durch Kondensation von  2.<B>6 -</B>     Dinitrochlorbenzol   <B>-</B> 4<B>-</B>     sulfosäure    mit  Anilin und folgende Reduktion der     Nitro-          gruppen,    werden in<B>500</B> Teilen Wasser neu  tral gelöst und bei<B>70</B> bis<B>80 '</B> mit 24 Teilen  2. 4.     6-'Prinitroaniso.1,    welches man     allmäh-          lieh    unter Rühren zugibt, kondensiert.

      Gleichzeitig     lässt    man eine Lösung von  <B>6</B> Teilen Natriumkarbonat in<B>60</B> Teilen  Wasser     zutropfen.    Nachdem alles     Trinitro-          anisol    umgesetzt ist, gibt man noch<B>6</B> Teile  Natriumkarbonat hinzu und erhitzt eine  Stunde auf<B>90</B>     '.    Der Farbstoff wird durch       Aussalzen    abgeschieden und stellt getrock  net ein schwarzes Pulver dar.



      Procedure for the representation of the eluent dye. As has been found, one arrives at a new valuable dye which dyes wool in yellow-brown, well-leveling shades of very good lightfastness if one <B> 1 </B> takes it. 2,6-diaminodiplienylamine-4-sulio acid with <B> 1 </B> hol. 2. 4. 6-trinitro-1-alkoxybenzene condensed.

   In this case, the reaction to be expected between the alkoxy group and an amino group initially takes place, but if the alkali is heated further in the presence of alkali, an internal condensation then occurs with the elimination of alkali metal nitrite.



  <I> Example: </I> <B> 27.9 </B> parts <B> * </B> 2. 6-diaminodiphenylamine-4-sulfonic acid, obtained by condensation of 2. <B> 6 - < / B> Dinitrochlorobenzene <B> - </B> 4 <B> - </B> sulfonic acid with aniline and subsequent reduction of the nitro groups are neutralized in <B> 500 </B> parts of water and < B> 70 </B> to <B> 80 '</B> with 24 parts 2. 4. 6-'Prinitroaniso.1, which is gradually added with stirring, condensed.

      At the same time, a solution of 6 parts of sodium carbonate in 60 parts of water is added dropwise. After all of the trinitroanisole has been converted, <B> 6 </B> parts of sodium carbonate are added and the mixture is heated to <B> 90 </B> 'for one hour. The dye is deposited by salting out and is a black powder when dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Wolle in gelbbraunen, gut egalisierenden und sehr lichtechten Tönen färbenden Farbstoffes, dadurch gekennzeichnet, dass man auf<B>1</B> Hol. 2<B>-</B> 6-Diaminodiphenylamin-4-suliosäure <B>1</B> Hol. 2. 4. 6-Trinitro-l-alkoxybenzol ein wirken lässt und das zunächst gebildete Kon densationsprodukt in Gegenwart von Alkali erhitzt. PATENT CLAIM: Process for the representation of a wool in yellow-brown, well-leveling and very lightfast coloring shades of dye, characterized in that <B> 1 </B> Hol. 2 <B> - </B> 6-diaminodiphenylamine-4-sulio acid <B> 1 </B> Hol. 2. 4. 6-trinitro-1-alkoxybenzene can act and the condensation product initially formed is heated in the presence of alkali.
CH151160D 1929-08-17 1930-03-12 Process for the preparation of a wool dye. CH151160A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE151160X 1929-08-17
CH147460T 1931-06-15

Publications (1)

Publication Number Publication Date
CH151160A true CH151160A (en) 1931-11-30

Family

ID=25715028

Family Applications (1)

Application Number Title Priority Date Filing Date
CH151160D CH151160A (en) 1929-08-17 1930-03-12 Process for the preparation of a wool dye.

Country Status (1)

Country Link
CH (1) CH151160A (en)

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