CH151170A - Process for the preparation of a wool dye. - Google Patents

Process for the preparation of a wool dye.

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Publication number
CH151170A
CH151170A CH151170DA CH151170A CH 151170 A CH151170 A CH 151170A CH 151170D A CH151170D A CH 151170DA CH 151170 A CH151170 A CH 151170A
Authority
CH
Switzerland
Prior art keywords
preparation
wool
parts
dye
wool dye
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 CH151170A publication Critical patent/CH151170A/en

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Description

  

      Terfahren    zur Darstellung eines     Wollfarbstoffes.       Wie gefunden wurde, gelangt man zu  einem neuen     wert-vollen    Farbstoff, der Wolle  in rotbraunen, gut egalisierenden Tönen von  sehr guter     LichtecUtheit    färbt, wenn man  <B>1 Hol.</B>     2'-Chlor-2,        6-diaminodiphenylamin-4-          sulfosäure    mit<B>1</B>     Mol.    2. 4.     6-Trinitroalkoxy-          benzol    kondensiert. Hierbei findet zunächst.

    die zu erwartende Reaktion zwischen der       Alkoxygruppe    und einer     Aminogruppe    statt,  bei weiterem Erhitzen in Gegenwart von  Alkali tritt dann unter Abspaltung von       Alka-Iinitrit    eine innere Kondensation ein.

    <I>Beispiel:</I>  <B>31,335</B> Teile     2-Chlor-2.        6-diaminodiplie-          nylamin-4-sulfosäure,    erhalten durch Kon  densation von 2.     6-Dinitrochlorbenzal-#l-sulio-          #äure    mit     2-Chloranilin    und folgende Reduk  tion der Nitrogruppen, werden in<B>500</B> Teilen  Wasser neutral gelöst und bei<B>70</B> bis<B>80 '</B>  mit 24 Teilen 2. 4.

       6-Trinitraanisol,    welches  man allmählich unter Rühren zugibt, kon-         densiert.    Gleichzeitig     lässt    man eine     Lösun,(.,          von   <B>6</B> Teilen Natriumkarbonat in<B>60</B> Teilen       g"asser        zutropfen.    Nachdem alles     Trinitr.)-          anisol    umgesetzt ist, gibt man noch<B>6</B> Teile       Natriumkarbonat    hinzu und erhitzt     einr,

       Stunde auf<B>90</B>     '.    Der Farbstoff wird     durel-          Aussalzen    abgeschieden und getrocknet. Er  bildet ein schwarzes Pulver.



      Terfahren for the representation of a wool dye. It has been found that a new valuable dye is obtained which dyes wool in reddish-brown, well-leveling shades of very good lightness if <B> 1 Hol. </B> 2'-chloro-2,6-diaminodiphenylamine is used -4- sulfonic acid with <B> 1 </B> Mol. 2. 4. 6-trinitroalkoxybenzene condensed. This takes place first.

    the expected reaction between the alkoxy group and an amino group takes place; on further heating in the presence of alkali an internal condensation occurs with elimination of alkali initrite.

    <I> Example: </I> <B> 31,335 </B> parts 2-chloro-2. 6-diaminodiplanylamine-4-sulfonic acid, obtained by condensation of 2. 6-dinitrochlorobenzal- # l-sulio- # acid with 2-chloroaniline and the subsequent reduction of the nitro groups, are in 500 parts Water dissolved neutrally and at <B> 70 </B> to <B> 80 '</B> with 24 parts 2. 4.

       6-trinitraanisole, which is added gradually with stirring, condenses. At the same time, a solution (., Of <B> 6 </B> parts of sodium carbonate in <B> 60 </B> parts of g "ater. After all of the trinitrate.) - anisole has been converted, <B > 6 </B> parts of sodium carbonate and heat in the oven,

       Hour to <B> 90 </B> '. The dye is deposited by salting out and dried. It forms a black powder.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Darstellung eines Wolle in rotbraunen, gut egalisierenden und sehr licUtechten Tönen färbenden Farbstoffes, d9,- ,durch gekennzeichnet, dass man auf<B>1</B> Mol. 2'-Clilor-2. 6--diaminodiplienylamin <B>-</B> 4<B>-</B> sulio- säure <B>1</B> Mol. <B>2.</B> 4. 6-Trinitroalkoxybenzc>l einwirken lässt und das zunächst gebildete Kondensationsprodukt in Gegenwart von Alkali erhitzt. <B> PATENT CLAIM: </B> Process for the representation of a wool in red-brown, well-leveling and very light-colored dyestuff, d9, -, characterized in that <B> 1 </B> Mol. 2'-Clilor -2. 6 - diaminodiplienylamine <B> - </B> 4 <B> - </B> sulioic acid <B> 1 </B> mol. <B> 2. </B> 4. 6-trinitroalkoxybenzene> l can act and heated the condensation product initially formed in the presence of alkali.
CH151170D 1929-08-17 1930-03-12 Process for the preparation of a wool dye. CH151170A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE151170X 1929-08-17
CH147460T 1931-06-15

Publications (1)

Publication Number Publication Date
CH151170A true CH151170A (en) 1931-11-30

Family

ID=25715038

Family Applications (1)

Application Number Title Priority Date Filing Date
CH151170D CH151170A (en) 1929-08-17 1930-03-12 Process for the preparation of a wool dye.

Country Status (1)

Country Link
CH (1) CH151170A (en)

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