CH186147A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

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Publication number
CH186147A
CH186147A CH186147DA CH186147A CH 186147 A CH186147 A CH 186147A CH 186147D A CH186147D A CH 186147DA CH 186147 A CH186147 A CH 186147A
Authority
CH
Switzerland
Prior art keywords
monoazo dye
preparation
sulfonic acid
acetylamino
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 CH186147A publication Critical patent/CH186147A/en

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  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines     Monoazofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur     Herstellung    eines     Monoazo-          farbstoffes,    dadurch gekennzeichnet, dass man  die     Diazoverbindung    der     N-Cyclohegylacetyl-          amino-4-aminobenzol-2-sulfosäure    mit     1-Ace-          tylamino-8-naphthol-6-sulfosäure    kuppelt.  



  Der so     erhals:ene    Farbstoff ist ein ziegel  rotes, wasserlösliches Pulver und färbt Wolle  in     sehr    gut egalisierenden, lebhaften roten  Tönen von sehr     guter    Licht- und Schweiss  echtheit.  



  <I>Beispiel:</I>  31,2 kg     N-Cyclohegylacetylamiuo-4-          aminobenzol-2-sulfosäure    werden in .der üb  lichen Weise     diazotiert.    Die erhaltene, fast  farblose     Diazolösung    lässt man unter Rühren  bei etwa 10   in eine mit überschüssigem     Na-          triumacetat    versetzte Lösung von 1-Acetyl-         amino-8-naphthol@6-sulfosäure    einlaufen. Der  erhaltene Farbstoff wird isoliert und getrock  net.



  Process for the preparation of a monoazo dye. The present patent relates to a process for preparing a monoazo dye, characterized in that the diazo compound of N-cyclohegylacetylamino-4-aminobenzene-2-sulfonic acid is coupled with 1-acetylamino-8-naphthol-6-sulfonic acid .



  The so-called dye is a brick-red, water-soluble powder and dyes wool in very good equalizing, lively red tones that are very fast to light and perspiration.



  <I> Example: </I> 31.2 kg of N-cyclohegylacetylamino-4-aminobenzene-2-sulfonic acid are diazotized in the usual way. The almost colorless diazo solution obtained is allowed to run into a solution of 1-acetylamino-8-naphthol®6-sulfonic acid to which excess sodium acetate has been added at about 10 ° C. while stirring. The dye obtained is isolated and getrock net.

Claims (1)

.PATENTANSPRUCH: Verfahren zur Herstellung eines Monoazo- farbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung der N-Cyclohe$yl- acetylamino-4-aminobenzol-2-sulfosäure mit 1-Acetylamino-8-naphthol-6-sulfosäure kup pelt. Der so erhaltene Farbstoff ist ein ziegel rotes, wasserlösliches Pulver und färbt Wolle in sehr gut egalisierenden, lebhaften roten Tönen von sehr guter Licht- und Schweiss echtheit. .PATENT CLAIM: Process for producing a monoazo dye, characterized in that the diazo compound of N-cyclohe $ yl-acetylamino-4-aminobenzene-2-sulfonic acid is coupled with 1-acetylamino-8-naphthol-6-sulfonic acid. The dye obtained in this way is a brick-red, water-soluble powder and dyes wool in very good equalizing, lively red tones with very good lightfastness and sweatfastness.
CH186147D 1933-09-28 1934-12-19 Process for the preparation of a monoazo dye. CH186147A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH170449T 1933-09-28
DE186147X 1933-12-23

Publications (1)

Publication Number Publication Date
CH186147A true CH186147A (en) 1936-08-31

Family

ID=25718928

Family Applications (1)

Application Number Title Priority Date Filing Date
CH186147D CH186147A (en) 1933-09-28 1934-12-19 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH186147A (en)

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