CH217954A - Process for the preparation of a disazo dye. - Google Patents

Process for the preparation of a disazo dye.

Info

Publication number
CH217954A
CH217954A CH217954DA CH217954A CH 217954 A CH217954 A CH 217954A CH 217954D A CH217954D A CH 217954DA CH 217954 A CH217954 A CH 217954A
Authority
CH
Switzerland
Prior art keywords
dye
parts
greenish
disazo dye
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH217954A publication Critical patent/CH217954A/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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/04—Disazo dyes from a coupling component "C" containing a directive amino group
    • C09B31/053—Amino naphthalenes
    • C09B31/057—Amino naphthalenes containing acid groups, e.g. —CO2H, —SO3H, —PO3H2, —OSO3H, —OPO2H2; Salts thereof

Landscapes

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

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 214613.    Verfahren zur Herstellung eines     Disazofarbstoffes.       Gegenstand des vorliegenden Zusatzpaten  tes ist ein Verfahren zur     Herstellung    eines       Disazofarbstoffes,        daduTCh    gekennzeichnet,  dass dianotierte     2-Ch'lar-5-aminodip'henylsul-          fon-3'-s:

  ulfonsäure    mit     1-Aminonaplithalin          vereinigt,    der entstandene     Monoazofarbstoff          weiter    dianotiert und die     D.iazoazoverbin-          dung    mit     1-Phenylaminonaphthalin-8-sulfon-          säure    gekuppelt     wird..    Der neue     Farbstoff     stellt ein     dunkles    Pulver dar.

   Er löst sich in  Wasser mit     grünstichi@g,    in     Schwefelsäure     mit     blauer    Farbe und     färbt        Wolle    aus       schwach        saurem        Bade,    in     grüns.tichigen     Tönen von hervorragender Walk-,     Seewasser-          und        Lichtechtheit.     



  <I>Beispiel:</I>  34,8 Teile     2-Ch'lor-5-aminodiphenylsul-          fon-3'-sulfonsäure    werden in 100 Teilen       Wasser    mit     5"4    Teilen     Soda,    neutral gelöst,  mit 6,9     Teilen        Natriumnitrit    versetzt und  bei 3-5       in    29,2 Teile     Salzsäure    30 % ein  fliessen     gelassen.    Nach     beendeter    Dianotie  rung kuppelt man, wie üblich mit 14,

  3- Teilen         1-Aminonaphthalin.    Der fertige     Manoazo-          farbstoff    wird mit     Socfa    eben     lackmus@alka-          liscU    gestellt, mit 7,2     Teilen        Natriumnitrit     versetzt und durch Eingiessen von 85 Teilen  Salzsäure<B>30%</B> bei<B>8-10'</B>     dianotiert.    Nach  dem die     Diazotlerung    beendet ist, wird ab  filtriert, in 400     Teilen        Wasser    aufge  schlämmt und mit<B>29,

  5</B> Teilen     1-phenyl-          aminonapbtha'lin-8-sulfonsaurem        Natrium    in       Gegenwart    von 45 Teilen     essigsaurem    Na  trium     essigsawer        gekuppelt.    Der     getrocknete     Farbstoff     stellt        ein        dunkles    Pulver dar.

   Er  löst sich in Wasser mit     ;grünstichig,    in  Schwefelsäure mit     blauer    Farbe und färbt       Wolle        aus        schwach    saurem Bade in     grün-          Gtchigen    Tönen von hervorragender Walk-,       Seewasser-    und     Lichtechtheit.  



      Additional patent to main patent No. 214613. Process for the production of a disazo dye. The subject of the present additional patent is a process for the production of a disazo dye, characterized by the fact that dianotated 2-Ch'lar-5-aminodip'henylsulphon-3'-s:

  Sulphonic acid combined with 1-aminonaplithalin, the resulting monoazo dye is further dianotized and the D.iazoazo compound is coupled with 1-phenylaminonaphthalene-8-sulphonic acid. The new dye is a dark powder.

   It dissolves in water with a greenish tinge, in sulfuric acid with a blue color and dyes wool from weakly acidic baths in greenish tinted shades of excellent fullness, seawater and lightfastness.



  <I> Example: </I> 34.8 parts of 2-chloro-5-aminodiphenylsulphone-3'-sulphonic acid are dissolved in 100 parts of water with 5 "4 parts of soda, neutral, with 6.9 parts of sodium nitrite added and allowed to flow in at 3-5 in 29.2 parts of 30% hydrochloric acid. After the end of the dianotation, coupling is carried out as usual with 14,

  3- parts of 1-aminonaphthalene. The finished manoazo dye is made with Socfa just litmus @ alkali, mixed with 7.2 parts of sodium nitrite and poured in 85 parts of hydrochloric acid <B> 30% </B> at <B> 8-10 '</ B > dianotiert. After the diazotization has ended, it is filtered off, slurried in 400 parts of water and treated with <B> 29,

  5 parts of 1-phenyl aminonapbtha'lin-8-sulfonic acid sodium in the presence of 45 parts of acetic acid sodium acetic acid coupled. The dried dye is a dark powder.

   It dissolves in water with a; greenish tinge, in sulfuric acid with a blue color and dyes wool from weakly acidic baths in green-yellow tones of excellent fullness, seawater and lightfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Disazo- farbstoffes, dadurch gekennzeichnet, dass dianotierte 2-C'hlar-5-aminodiphenylsulfon-3,'- sulfonsäure mit 1-Aminonaphthalin verei- nigt, PATENT CLAIM: Process for the production of a disazo dye, characterized in that dianotated 2-C'hlar-5-aminodiphenylsulfone-3, '- sulfonic acid combined with 1-aminonaphthalene, der entstandene Manoazofarbgtoff wei- ter diazotiert und die Diazoazoverbindung mit 1-Phenylaminonaphtha;lin - 8 -sulfonsäure gekuppelt wird. Der neue Farbstoff stellt ein dunkles Pulver dar. the resulting manoazo dye is further diazotized and the diazoazo compound is coupled with 1-phenylaminonaphtha; lin-8-sulfonic acid. The new dye is a dark powder. Er löst .sich in Wasser mit: grünstiehig, in Schwefelsäure mit blauer Farbe und färbt Wolle aus schwach saurem Bade in grünstichigen Tönen von hervor ragender Walk-, Seewasser- und Lichtecht- heit. It dissolves in water with: greenish, in sulfuric acid with a blue color and dyes wool from weakly acidic baths in greenish tones with excellent fullness, seawater and lightfastness.
CH217954D 1939-12-11 1939-12-11 Process for the preparation of a disazo dye. CH217954A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH217954T 1939-12-11
CH214613T 1939-12-11

Publications (1)

Publication Number Publication Date
CH217954A true CH217954A (en) 1941-11-15

Family

ID=25725619

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217954D CH217954A (en) 1939-12-11 1939-12-11 Process for the preparation of a disazo dye.

Country Status (1)

Country Link
CH (1) CH217954A (en)

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