CH234037A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH234037A
CH234037A CH234037DA CH234037A CH 234037 A CH234037 A CH 234037A CH 234037D A CH234037D A CH 234037DA CH 234037 A CH234037 A CH 234037A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
monoazo dye
yellow
dichlorobenzene
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 CH234037A publication Critical patent/CH234037A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
    • C09B62/62—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring the reactive group being an ethylenimino or N—acylated ethylenimino group or a —CO—NH—CH2—CH2—X group, wherein X is a halogen atom, a quaternary ammonium group or O—acyl and acyl is derived from an organic or inorganic acid, or a beta—substituted ethylamine group
    • C09B62/66—Azo dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines     blonoazofarbstoffes.       Vorliegende Erfindung betrifft ein Ver  fahren zur Herstellung eines     ATonoüzofarb-          stoffes.    Das Verfahren ist dadurch gekenn  zeichnet, dass man     diazotierte        1-A.mino-2,5-          dichlorbenzol-4-sulfon3äure    mit     1-Phenyl-3-          methyl    - 5 -     pyrazoIon-3',5'-di-        (sulf-ss-chlor-          äthylamid)    kuppelt.  



  Der Farbstoff stellt ein gelbbraunes,       wasserlösliches    Pulver dar und färbt Wolle       aus    saurem Bade etwas     rotstichig    gelb.  



  <I>Beispiel:</I>  24,2     Gewichtsteile        1-Amino-2,5-dichlor-          benzol-4-s,ulfo#nsäure    werden     diazetiert.        Die          Diazoverbindung    lässt man in eine eiskalte,       v,ä.ss:rige    Suspension von 45,7 Gewichtsteilen       1-Phenyl-3-methyl-5-pyrazo@lon-3',5'-di-(sulf-          ss-chlo,räthylamid)     
EMI0001.0024     
    in Gegenwart von     Natriumacetat    einlaufen.  Ist die Kupplung beendet, wird der     Farb-          staff    abgetrennt und wie üblich fertiggestellt.  



  Er     stellt        ein        ,gelbbrauneo,    wasserlösliches  Pulver dar und färbt Wolle aus saurem Bade  etwas     rotstichig    gelb; die Färbung ist egal  und weist eine sehr gute Waschechtheit bei  ,der scharfen Wäsche auf, und zwar sowohl  bezüglich Bluten auf Weiss als auch in der  Erhaltung des Farbtones und der     Farbtiefe.  



  Process for the preparation of a blonoazo dye. The present invention relates to a process for the production of an ATonouzo dye. The process is characterized in that diazotized 1-amino-2,5-dichlorobenzene-4-sulfonic acid is mixed with 1-phenyl-3-methyl-5-pyrazolone-3 ', 5'-di- (sulf-ss -chlor- äthylamid) couples.



  The dye is a yellow-brown, water-soluble powder and dyes wool from an acidic bath with a slightly reddish yellow.



  <I> Example: </I> 24.2 parts by weight of 1-amino-2,5-dichlorobenzene-4-s, sulfonic acid are diacetated. The diazo compound is left in an ice-cold, v, ä.ss: rige suspension of 45.7 parts by weight of 1-phenyl-3-methyl-5-pyrazo @ lon-3 ', 5'-di- (sulf- ss-chlo, räthylamide)
EMI0001.0024
    run in the presence of sodium acetate. When the coupling is finished, the color staff is separated and finished as usual.



  It is a yellow-brown, water-soluble powder and dyes wool from an acidic bath with a slightly reddish yellow; the dyeing is irrelevant and shows very good wash fastness in the case of sharp laundry, both in terms of bleeding on white and in the preservation of the hue and depth of color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man diazotierte 1-Amino-2,5-dichlorbenzol-4- sulfonsäure mit 1-Phenyl-3-methyl-5-pyrazo- lon-3',5'-,di-(suf-ss-chlorä,thylamid) kuppelt. Der Farbstoff stellt. ein gelbbraunes. wasserlösliches Pulver dar und färbt Wolle aus saurem Badeetwas rotstichig gelb. PATENT CLAIM: Process for the preparation of a mono azo dye, characterized in that diazotized 1-amino-2,5-dichlorobenzene-4-sulfonic acid with 1-phenyl-3-methyl-5-pyrazolone-3 ', 5'-, di- (suf-ss-chlorä, thylamid) couples. The dye represents. a yellow-brown. water-soluble powder and dyes wool from acidic baths a reddish yellow.
CH234037D 1942-02-04 1942-12-23 Process for the preparation of a monoazo dye. CH234037A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE234037X 1942-02-04
CH231891T 1942-12-23

Publications (1)

Publication Number Publication Date
CH234037A true CH234037A (en) 1944-08-31

Family

ID=25727654

Family Applications (1)

Application Number Title Priority Date Filing Date
CH234037D CH234037A (en) 1942-02-04 1942-12-23 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH234037A (en)

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