CH107132A - Process for the preparation of a substantive azo dye. - Google Patents

Process for the preparation of a substantive azo dye.

Info

Publication number
CH107132A
CH107132A CH107132DA CH107132A CH 107132 A CH107132 A CH 107132A CH 107132D A CH107132D A CH 107132DA CH 107132 A CH107132 A CH 107132A
Authority
CH
Switzerland
Prior art keywords
acid
preparation
dye
naphthylamine
diazotized
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH107132A publication Critical patent/CH107132A/en

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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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/18—Trisazo or higher polyazo dyes
    • C09B33/28—Tetrazo dyes of the type A->B->K<-C<-D
    • 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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
    • C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
    • C09B43/14—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 106778.         Verfahren    zur Herstellung eines     substantiven        Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       substantiven        Azofarbstoff    erhält, wenn man  auf 2     Mol.        1,

  3'-Aminophenyl-5-pyrazolon-3-          karbonsäure        Phosgen    und hierauf 1     Mol.     der aus     4-Amino-3-toluol-azo-2'-toluol-4'-          sulfosäure    hergestellten     Diazoverbindung    und  1     Mol.    des     diazotierten        Disazofarbstoffes     aus     diazotierter        2-Naphthylamin-4,8-disulfo-          säure    und     a-Naphthylamin,

          Weiterdiazotie-          ren    und Kuppeln mit     Clevesch2r    Säure ein  wirken lässt. Der neue Farbstoff bildet ein  dunkles Pulver und färbt Baumwolle in  sehr lichtechten,     braunen    Tönen, die sich mit       Hydrosulfit    rein weiss ätzen lassen.  



  <I>Beispiel:</I>  In die Lösung von 438 Teilen     1,3'-Amino-          phenyl-5-pyrazolon-3-karbonsäure    und 300  Teilen Soda in 3000 Teilen Wasser wird bei  etwa 40 bis<B>50'</B>     Phosgen    eingeleitet, bis eine  Probe sich nicht mehr     diazotieren    lässt.

   In  die so erhaltene Lösung lässt man eine Suspen  sion der aus 305 Teilen     4-Amino-3-toluol-azo-          2'-toluol-4'-sulfosäure    hergestellten     Diazover-          bindung    und, nach erfolgter Bildung des       Disazofarbstoffes,    die     Diazoverbindung,    er-    halten durch     Diazotieren    von 691 Teilen des       Disazofarbstoffes    aus     diazotierter        2-Naph-          thylamin-4,8-disulfosäure    und     a-Naphthyl-          amin,

          Weiterdiazotieren    und Kuppeln mit       Clevescher    Säure zufliessen.



      Additional patent to main patent no. 106778. Process for the production of a substantive azo dye. It has been found that a new substantive azo dye is obtained if one uses 2 mol. 1,

  3'-aminophenyl-5-pyrazolone-3-carboxylic acid phosgene and then 1 mol. Of the diazo compound prepared from 4-amino-3-toluene-azo-2'-toluene-4'-sulfonic acid and 1 mol. Of the diazotized disazo dye from diazotized 2-naphthylamine-4,8-disulfonic acid and a-naphthylamine,

          Further diazotization and doming with Clevesch2r acid can have an effect. The new dye forms a dark powder and dyes cotton in very lightfast, brown tones, which can be etched pure white with hydrosulfite.



  <I> Example: </I> In the solution of 438 parts of 1,3'-aminophenyl-5-pyrazolone-3-carboxylic acid and 300 parts of soda in 3000 parts of water is about 40 to <B> 50 '< / B> Phosgene introduced until a sample can no longer be diazotized.

   In the solution obtained in this way, a suspension of the diazo compound prepared from 305 parts of 4-amino-3-toluene-azo-2'-toluene-4'-sulfonic acid and, after the disazo dye has formed, the diazo compound, is allowed to hold by diazotizing 691 parts of the disazo dye from diazotized 2-naphthylamine-4,8-disulfonic acid and a-naphthylamine,

          Continue diazotizing and adding Clevean acid to the domes.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines substan- tiven Azofarbstoffes, dadurch gekennzeich net, däss man auf 2 Mol. 1, PATENT CLAIM: A process for the preparation of a substantial azo dye, characterized in that one has 2 mol. 1, 3'-Aminophenyl- 5-pyrazolon-3-karbonsäure Phosgen und hier auf 1 Mol. der aus 4-Amino-3-toluol-azo-2'- toluol-4'-sülfosäure hergestellten Diazover- bindung und 1 Mol. des diazotierten Disazo- fa.rbstoffes aus diazotierter 2-Naphthylamin- 4,8-disulfosäure und a-Naphthylamin, 3'-aminophenyl-5-pyrazolone-3-carboxylic acid phosgene and here to 1 mole of the diazo compound prepared from 4-amino-3-toluene-azo-2'-toluene-4'-sulphonic acid and 1 mole of the diazotized one Disazo dye from diazotized 2-naphthylamine-4,8-disulfonic acid and a-naphthylamine, Wei- terdiazotieren und Kuppeln mit Clevescher Säure, einwirken lässt. Der neue Farbstoff lildet ein dunkles Pulver und färbt Baum wolle in sehr lichtechten, braunen Tönen, die sich mit Hydrosulfit rein weiss ätzen lassen. Further diazotize and dome with Clevescher Acid. The new dye forms a dark powder and dyes cotton in very lightfast, brown tones, which can be etched in pure white with hydrosulfite.
CH107132D 1923-07-27 1924-06-25 Process for the preparation of a substantive azo dye. CH107132A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH106778T 1923-07-27
CH107132T 1923-07-27

Publications (1)

Publication Number Publication Date
CH107132A true CH107132A (en) 1924-10-01

Family

ID=31947293

Family Applications (1)

Application Number Title Priority Date Filing Date
CH107132D CH107132A (en) 1923-07-27 1924-06-25 Process for the preparation of a substantive azo dye.

Country Status (1)

Country Link
CH (1) CH107132A (en)

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