CH198053A - Process for the preparation of a polyazo dye. - Google Patents

Process for the preparation of a polyazo dye.

Info

Publication number
CH198053A
CH198053A CH198053DA CH198053A CH 198053 A CH198053 A CH 198053A CH 198053D A CH198053D A CH 198053DA CH 198053 A CH198053 A CH 198053A
Authority
CH
Switzerland
Prior art keywords
molecule
preparation
dye
combined
disulfonic acid
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH198053A publication Critical patent/CH198053A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/44—Trisazo dyes ot the type the component K being a hydroxy amine
    • C09B35/46—Trisazo dyes ot the type the component K being a hydroxy amine the component K being an amino naphthol
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/20—Making tools by operations not covered by a single other subclass
    • B21D37/205—Making cutting tools
    • 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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/44—Trisazo dyes ot the type the component K being a hydroxy amine
    • C09B35/46—Trisazo dyes ot the type the component K being a hydroxy amine the component K being an amino naphthol
    • C09B35/463—D being derived from diaminodiphenyl
    • 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
    • C09B43/16—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents linking amino-azo or cyanuric acid residues

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 194457.    Verfahren zur Darstellung eines     Polyazofarbstoffes.       Das vorliegende Patent betrifft ein Ver  fahren zur Darstellung eines blauen     Trisazo-          farbstoffes    und ist dadurch gekennzeichnet,  dass man ein Molekül     Tetrazobenzidin    in sau  rer Lösung mit einem Molekül 1,8     -Amino-          naphthol    - 3,6 -     disulfonsäure    kombiniert, das  Zwischenprodukt zuerst mit einem Molekül       Diazobenzolmetasulfonsäure    in alkalischer Lö  sung kuppelt und hierauf mit einem Molekül  N -     Paratoluolsulfoyl    - 1,

  8 -     amin        onaphtol    -     3,6-          disulfonsäure    vereinigt.  



  <I>. Beispiel: .</I>  



       ,18,4    Teile     Benzidin    werden in der übli  chen Weise     tetrazotiert    und mit 34,1 Teilen       1,8-Aminonaphtol-3,6-disulfonsäure    (Mono  natriumsalz) mineralsauer gekuppelt. Ist die  Bildung des Zwischenproduktes beendet, so  wird es mit der     Diazoverbindung    aus 17,3  Teilen     Aminobenzolmetasulfonsäure        sodaalka-          lisch    vereinigt. Nach erfolgter Kupplung zum       Disazofarbstoff    lässt man eine alkalische Lö  sung von 47,3 Teilen N -     Paratoluolsulfoyl-          1,8-aminonaphtol-3,6-disulfonsäure    zufliessen.

    Die Kupplung erfolgt rasch und der     Farbstoff     wird durch     Aussalzen    der angesäuerten Kupp  lungsflüssigkeit ausgeschieden. Die nach der    Filtration erhaltene saure     Farbstoffpaste    wird  neutralisiert und zur Trockne verdampft.  



  Der neue     Farbstoff    stellt ein grauschwar  zes, etwas bronzierendes, in Wasser mit tief  blauer Farbe lösliches Pulver dar und färbt  Leder verschiedenster     Gerbungsart    in schönen  blauen Tönen- an.



      Additional patent to main patent No. 194457. Process for the preparation of a polyazo dye. The present patent relates to a method for the preparation of a blue trisazo dye and is characterized in that one molecule of tetrazobenzidine in acidic solution is combined with one molecule of 1,8-amino naphthol-3,6-disulfonic acid, the intermediate product first with one molecule of diazobenzene metasulfonic acid in alkaline solution and then with one molecule of N-paratoluenesulfoyl-1,

  8 - amin onaphtol - 3,6-disulfonic acid combined.



  <I>. Example:. </I>



       18.4 parts of benzidine are tetrazotized in the usual manner and coupled with 34.1 parts of 1,8-aminonaphthol-3,6-disulfonic acid (monosodium salt) with mineral acid. When the formation of the intermediate has ended, it is combined with the diazo compound from 17.3 parts of aminobenzene metasulfonic acid in an alkaline form. After coupling to the disazo dye, an alkaline solution of 47.3 parts of N-paratoluenesulfoyl-1,8-aminonaphthol-3,6-disulfonic acid is allowed to flow in.

    Coupling takes place quickly and the dye is excreted by salting out the acidified coupling liquid. The acidic dye paste obtained after filtration is neutralized and evaporated to dryness.



  The new dye is a gray-black, somewhat bronzing powder that is soluble in water with a deep blue color and dyes leather of various types of tanning in beautiful blue tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines blauen Trisazofarbstoffes, dadurch gekennzeichnet, dass man ein Molekül Tetrazobenzidin in saurer Lösung mit einem Molekül 1,8-Amino- naphtol - 3;,6 - disulfonsäure kombiniert, das Zwischenprodukt zuerst mit einem Molekül Diazobenzolmetasulfonsäuce in alkalischer Lö sung kuppelt und hierauf mit einem Molekül N-Paratoluolsulfoyl-1,8 - aminonaphtol -3,6-di- sulfonsäure vereinigt. PATENT CLAIM: Process for the preparation of a blue trisazo dye, characterized in that one molecule of tetrazobenzidine in acidic solution is combined with one molecule of 1,8-amino naphthol - 3;, 6 - disulfonic acid, the intermediate product first with a molecule of diazobenzene metasulfonic acid in alkaline solution coupled and then combined with a molecule of N-paratoluenesulfoyl-1,8 - aminonaphthol -3,6-disulfonic acid. Der neue Farbstoff stellt ein Zrauschwar- zes, etwas bronzierendes, in Wasser mit tief blauer Farbe lösliches Pulver dar und färbt Leder verschiedenster Gerbungsart in schönen blauen Tönen an. The new dye is a jet black, somewhat bronzing powder that is soluble in water with a deep blue color and colors leather of various types of tanning in beautiful blue tones.
CH198053D 1955-09-14 1937-03-13 Process for the preparation of a polyazo dye. CH198053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1170174XA 1955-09-14 1955-09-14

Publications (1)

Publication Number Publication Date
CH198053A true CH198053A (en) 1938-05-31

Family

ID=22370561

Family Applications (2)

Application Number Title Priority Date Filing Date
CH198053D CH198053A (en) 1955-09-14 1937-03-13 Process for the preparation of a polyazo dye.
CH194457D CH194457A (en) 1955-09-14 1937-03-13 Process for the preparation of a polyazo dye.

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH194457D CH194457A (en) 1955-09-14 1937-03-13 Process for the preparation of a polyazo dye.

Country Status (2)

Country Link
CH (2) CH198053A (en)
FR (1) FR1170174A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2200586C2 (en) * 1972-01-07 1982-10-14 Bayer Ag, 5090 Leverkusen Trisazo dyes and their use
DE10235185A1 (en) * 2002-08-01 2004-02-19 Bayerische Motoren Werke Ag cutting equipment
US8042442B2 (en) 2002-08-01 2011-10-25 Bayerische Motoren Werke Aktiengesellschaft Cutting tool

Also Published As

Publication number Publication date
FR1170174A (en) 1959-01-12
CH194457A (en) 1937-12-15

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