CH191150A - Process for the preparation of a chromable monoazo dye. - Google Patents

Process for the preparation of a chromable monoazo dye.

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Publication number
CH191150A
CH191150A CH191150DA CH191150A CH 191150 A CH191150 A CH 191150A CH 191150D A CH191150D A CH 191150DA CH 191150 A CH191150 A CH 191150A
Authority
CH
Switzerland
Prior art keywords
chromable
preparation
monoazo dye
dye
orange
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 CH191150A publication Critical patent/CH191150A/en

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Description

  

  Verfahren zur Herstellung eines     ehromierbaren        3ionoazofarbstof%s.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur Herstellung eines       chromierbaren        Monoazofarbstoffes,    welches  darin besteht, dass man dianotierte     5-Benzoyl-          amino-2-aminobenzoesäure    mit     1-(2'-Chlor-5'-          sulfophenyl)-3-methyl-5-pyrazolon    kuppelt.    <I>Beispiel:</I>    25,6 Gewichtsteile 5 -     Benzoylamino    -     2-          arninobenzoesäure    werden in üblicher Weise  dianotiert.

   Die erhaltene     Diazolösung    lässt man  in eine mit überschüssiger     Natriumcarbonat-          lösung    versetzte Lösung von 28,85 Gewichts  teilen     1-(2'-Chlor-5'-sulfophenyl)-3-methyl-5-          pyrazolon    laufen. Nach beendeter Kupplung  wird der Farbstoff in üblicher Weise     ausge-          salzen,    abgesaugt und getrocknet.  



  Er stellt ein orangefarbenes, in Wasser  leicht lösliches Pulver dar, das auf Wolle    nach erfolgter Behandlung mit chromabgeben  den Mitteln gelborange Färbungen von guter  Walk- und Lichtechtheit ergibt.



  Process for the preparation of an honorable 3ionoazo dye% s. The subject of the present additional patent is a process for the production of a chromable monoazo dye, which consists in that dianotated 5-benzoyl-amino-2-aminobenzoic acid with 1- (2'-chloro-5'-sulfophenyl) -3-methyl-5 -pyrazolon couples. <I> Example: </I> 25.6 parts by weight of 5-benzoylamino-2-arninobenzoic acid are dianotized in the usual way.

   The diazo solution obtained is allowed to run into a solution of 28.85 parts by weight of 1- (2'-chloro-5'-sulfophenyl) -3-methyl-5-pyrazolone, to which excess sodium carbonate solution has been added. After the coupling has ended, the dye is salted out in the customary manner, filtered off with suction and dried.



  It is an orange-colored powder which is easily soluble in water and which, after treatment with chromium-releasing agents, produces yellow-orange colorations of good millfastness and lightfastness on wool.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chromier- baren Monoazofarbstoffes, dadurch gekenn zeichnet, dass man dianotierte 5-Benzoylamino- 2-aminobenzoesäure mit 1-(2'-Chlor-5'-sulfo- phenyl)-3-methyl-5-pyrazolon kuppelt. Der so erhaltene Farbstoff stellt ein orange farbenes, in Wasser leicht lösliches Pulver dar, das auf Wolle nach erfolgter Behandlung mit chromabgebenden Mitteln gelborange Färbungen von guter Walk- und Lichtecht heit ergibt. PATENT CLAIM: Process for producing a chromable monoazo dye, characterized in that dianotated 5-benzoylamino-2-aminobenzoic acid is coupled with 1- (2'-chloro-5'-sulfophenyl) -3-methyl-5-pyrazolone . The dye obtained in this way is an orange-colored powder which is readily soluble in water and which, after treatment with chromium-releasing agents, gives yellow-orange colorations of good flexing and lightfastness on wool.
CH191150D 1934-10-17 1935-10-16 Process for the preparation of a chromable monoazo dye. CH191150A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE191150X 1934-10-17
CH187122T 1935-10-16

Publications (1)

Publication Number Publication Date
CH191150A true CH191150A (en) 1937-05-31

Family

ID=25721484

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191150D CH191150A (en) 1934-10-17 1935-10-16 Process for the preparation of a chromable monoazo dye.

Country Status (1)

Country Link
CH (1) CH191150A (en)

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