CH235461A - Process for the preparation of a water-soluble monoazo dye. - Google Patents

Process for the preparation of a water-soluble monoazo dye.

Info

Publication number
CH235461A
CH235461A CH235461DA CH235461A CH 235461 A CH235461 A CH 235461A CH 235461D A CH235461D A CH 235461DA CH 235461 A CH235461 A CH 235461A
Authority
CH
Switzerland
Prior art keywords
sep
water
preparation
chloro
monoazo 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 CH235461A publication Critical patent/CH235461A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/08—Amino benzenes

Landscapes

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

Description

  

  Verfahren zur Herstellung eines wasserlöslichen     Nonoazofarbstoifes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen Leder in gelb  braunen Tönen einheitlich durchfärbenden  Farbstoff von guter Licht-, Säure-     iuid     Wasserechtheit, wenn man     1-Amino-2-@chlor-          4-nitrobenzol-6-sulfosäure        diazotiert    und die       Diazoverbindung    mit     Phenylaminodi        (äthan-          sulfonsäu#re)    der     Fbrmel     
EMI0001.0011     
    kuppelt.

    Wie nun     weiter    gefunden. wurde, erhält  man einen Farbstoff von     ähnlichen    Eigen  schaften, wenn man Bein Gemisch von       1-Amino-    2'- chlor-     6,-nitrobenzal        --4-sulf        osäure     und     1-Amino-2-chlor-4-nitrobenzol-,6-sulfo-          säure        diazotiert    und die     Diazoverbindung     mit 3 -     Chlarphenylaminodi        l(äthansulfon-          säure)    der Formel  
EMI0001.0025     
    kuppelt.

         Beispiel:     1 Gemisch von<B>70</B> Teilen     1-amino-2-@chlor-          6-nitrobenzol-,4=sulfonGaurem    Natrium und  etwa  ,Teilen     1-amino=2-.chlor-4-nitrobenzol-          6-sulfonsaurem    Natrium wird, wie im Haupt  patent     besohmieben,        diazotiert        und        mit    einer  mit Eis     versetzten    Lösung des Natrium  salzes der     3-Chlor-phenylaminodi        (äthan-          sulfonsäure)

      unter Zugabe von Natrium  acetat     gekuppelt.    Der     erhaltene    Farbstoff  färbt     Leder    in gelbbraunen Tönen von guten       Echtheitselgenschaften    einheitlich durch.



  Process for the preparation of a water-soluble nonoazo dye. The process described in the main patent gives a leather in yellow-brown shades uniformly through-dying dye of good light, acid iuid water fastness, if 1-amino-2- @ chloro-4-nitrobenzene-6-sulfonic acid is diazotized and the diazo compound with Phenylaminodi (ethane sulfonic acid) of the formula
EMI0001.0011
    clutch.

    As now further found. a dye of similar properties is obtained if a mixture of 1-amino-2'-chloro-6, -nitrobenzal -4-sulfonic acid and 1-amino-2-chloro-4-nitrobenzene-, 6 sulfonic acid diazotized and the diazo compound with 3 - Chlarphenylaminodi l (ethanesulfonic acid) of the formula
EMI0001.0025
    clutch.

         Example: 1 mixture of <B> 70 </B> parts of 1-amino-2- @ chloro-6-nitrobenzene-, 4 = sulphonic acidic sodium and about, parts of 1-amino = 2-chloro-4-nitrobenzene-6 -sodium sulfonic acid is, as in the main patent, diazotized and treated with a solution of the sodium salt of 3-chloro-phenylaminodi (ethane sulfonic acid) mixed with ice

      coupled with the addition of sodium acetate. The dye obtained uniformly dyes leather in yellow-brown shades with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines wasser löslichen Monoazofarbstoffes, dadurch ge kennzeichnet, dass man ein Gemisch. von EMI0002.0001 1-Amino- <SEP> 22- <SEP> chlor- <SEP> 6,-nitrobenzol-4-sulf <SEP> osäure <tb> und <SEP> 1-Amino-2-chlor-4-nitrobenzol-6@-sulfo säure <SEP> diazotiert <SEP> und <SEP> @ <SEP> die <SEP> Diazoverbindunb <tb> mit <SEP> ä <SEP> - <SEP> Chlorphenylaminodi <SEP> (äthansulfon <SEP> säure <SEP> .der <SEP> Formel <SEP> . EMI0002.0002 kuppelt. Der erhaltene neue Farbstoff färbt. Leder in gelbbraunen Tönen von guten Echtheits- eibenschaften einheitlich durch. Claim: Process for the production of a water-soluble monoazo dye, characterized in that a mixture. from EMI0002.0001 1-Amino- <SEP> 22- <SEP> chloro- <SEP> 6, -nitrobenzene-4-sulf <SEP> acid <tb> and <SEP> 1-amino-2-chloro-4-nitrobenzene-6 @ -sulfonic acid <SEP> diazotized <SEP> and <SEP> @ <SEP> the <SEP> diazo compound <tb> with <SEP> ä <SEP> - <SEP> chlorophenylaminodi <SEP> (ethanesulfon <SEP> acid <SEP>. the <SEP> formula <SEP>. EMI0002.0002 clutch. The new dye obtained stains. Leather in yellow-brown tones with good fastness properties through uniform.
CH235461D 1939-08-24 1942-12-11 Process for the preparation of a water-soluble monoazo dye. CH235461A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE235461X 1939-08-24
CH232888T 1942-12-11

Publications (1)

Publication Number Publication Date
CH235461A true CH235461A (en) 1944-11-30

Family

ID=25727775

Family Applications (1)

Application Number Title Priority Date Filing Date
CH235461D CH235461A (en) 1939-08-24 1942-12-11 Process for the preparation of a water-soluble monoazo dye.

Country Status (1)

Country Link
CH (1) CH235461A (en)

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