CH235459A - 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
CH235459A
CH235459A CH235459DA CH235459A CH 235459 A CH235459 A CH 235459A CH 235459D A CH235459D A CH 235459DA CH 235459 A CH235459 A CH 235459A
Authority
CH
Switzerland
Prior art keywords
water
preparation
monoazo dye
soluble monoazo
diazotized
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 CH235459A publication Critical patent/CH235459A/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     Honoazofarbstofes.       Nach dem im Hauptpatent beschriebenen  Verfahren. erhält man einen Leder in gelb  braunen Tönen einheitlich     .durchfärbenden     Farbstoff von guter Licht-, Säure- und  Wasserechtheit, wenn man     1-Amino=2'-eblor-          4-nitrobenzol=6-sulfosäure        diazotiert    und die       Diazoverbindung    mit     Phenylaminodi        (äthan-          sulfonsäure)    der     Formel     
EMI0001.0011     
    kuppelt.

    Wie nun weiter gefunden     wurde,    erhält  man einen Farbstoff von ähnlichen Eigen  i     schaften,    wenn man     1-Amino-2-ch@or=6-.nitro-          benzol-4-s.ulfosäure        diazotiert        und        die        Di-          azoverbindung    mit     3-Methylphenylaminodi          (äthansulfonsäure)    der     Formel     
EMI0001.0024     
    kuppelt.

      <I>Beispiel:</I>  27,5 Teile     1-amino-2-@chlor-6-nitrGben7,ol-          4-sulfonsaures    Natrium werden     diazotiert     und mit     einer        wässrigen,        essigsauren    Lösung  des Natriums altes der     3.-Methylphenyl-          aminodi        (äthansulfoneäure)    gekuppelt. Der  Farbstoff färbt Leder in braunroten Tönen  wasserecht durch.



  Process for the preparation of a water-soluble honoazo dye. According to the procedure described in the main patent. you get a leather in yellow-brown shades uniformly. Through-coloring dye of good light, acid and water fastness, if 1-amino = 2'-eblor-4-nitrobenzene = 6-sulfonic acid is diazotized and the diazo compound with phenylamino di (ethane sulfonic acid ) of the formula
EMI0001.0011
    clutch.

    As has now been found further, a dye with similar properties is obtained if 1-amino-2-ch@or=6-.nitrobenzene-4-s.ulfonic acid is diazotized and the diazotized with 3-methylphenylaminodi (ethanesulfonic acid) of the formula
EMI0001.0024
    clutch.

      <I> Example: </I> 27.5 parts of 1-amino-2- @ chloro-6-nitrGben7, ol- 4-sulfonic acid sodium are diazotized and mixed with an aqueous, acetic acid solution of the sodium old of the 3rd methylphenyl aminodi (ethanesulfonic acid) coupled. The dye dyes leather in brown-red tones water-fast.

Claims (1)

PATENTANSPRUCH: Verfahren. zur Herstellung eines wasser- löslichen Monoazofarbstaffes, dadurch "ge kennzeichnet, dass man 1-Amino-2,-cblor-6- nitrobenzol-4-su,Ifosäure diazotiert und die Diazoverbindung mit 3-Methylphenylaminodi (äthansulfon,säure), der Formel EMI0001.0045 kuppelt. Der neue Farbstoff färbt Leder in braun roten Tönen wasserecht durch. PATENT CLAIM: Process. for the production of a water-soluble monoazo dye, characterized in that 1-amino-2, -cbloro-6-nitrobenzene-4-su, ifo acid is diazotized and the diazo compound is diazotized with 3-methylphenylamino di (ethanesulfonic acid), of the formula EMI0001.0045 clutch. The new dye dyes leather in brown-red tones water-fast.
CH235459D 1939-08-24 1942-12-11 Process for the preparation of a water-soluble monoazo dye. CH235459A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE235459X 1939-08-24
CH232888T 1942-12-11

Publications (1)

Publication Number Publication Date
CH235459A true CH235459A (en) 1944-11-30

Family

ID=25727773

Family Applications (1)

Application Number Title Priority Date Filing Date
CH235459D CH235459A (en) 1939-08-24 1942-12-11 Process for the preparation of a water-soluble monoazo dye.

Country Status (1)

Country Link
CH (1) CH235459A (en)

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