CH115476A - Process for the production of a chromium-containing dye. - Google Patents

Process for the production of a chromium-containing dye.

Info

Publication number
CH115476A
CH115476A CH115476DA CH115476A CH 115476 A CH115476 A CH 115476A CH 115476D A CH115476D A CH 115476DA CH 115476 A CH115476 A CH 115476A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
production
containing dye
blue
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 CH115476A publication Critical patent/CH115476A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Description

  

  verfahren zur Herstellung eines     chromhaltigen        Farbstoffes.       Es wurde gefunden, dass ein neuer       chromhaltiger    Farbstoff erhalten wird,  wenn man den     Azofarbstoff,    welcher  durch Kuppeln der     Diazoverbindung    des     4-          Chlor-2-amino-l-oxybenzols    mit     1-Oxynaph-          thalin-3,8-disulfamid    hergestellt werden  kann, mit     Chromformiat    behandelt. Der so       erhaltene    Farbstoff bildet ein dunkles Pul  ver, das sich in Wasser mit blauvioletter  Farbe löst.

   Er färbt Wolle aus saurem  Bade in sehr egalen und reinen rotblauen  Tönen von hervorragenden Echtheitseigen  schaften.  



       Beispiel:     45,5 Teile des Farbstoffes, erhalten  durch Vereinigen von     diazotiertem        4-Chlor-          2-amino-l-oxybenzol    mit     1-Oxynaphthalin-          3,8-disulfamid,    werden in 800 Teilen Was  ser kochend gelöst. herauf wird mit einer       Chromformiatlösung    entsprechend 16 Teilen         Cr203    versetzt und längere Zeit rückfliessend  gekocht. Durch Eindampfen und     Aussalzen     wird die neue Chromverbindung gewonnen.



  process for the production of a chromium-containing dye. It has been found that a new chromium-containing dye is obtained if the azo dye, which can be prepared by coupling the diazo compound of 4-chloro-2-amino-1-oxybenzene with 1-oxynaphthalene-3,8-disulfamide, treated with chromium formate. The dye thus obtained forms a dark powder that dissolves in water with a blue-violet color.

   It dyes wool from an acid bath in very even and pure red-blue tones with excellent fastness properties.



       Example: 45.5 parts of the dye, obtained by combining diazotized 4-chloro-2-amino-1-oxybenzene with 1-oxynaphthalene-3,8-disulfamide, are dissolved in 800 parts of water at the boil. a chromium formate solution corresponding to 16 parts of Cr203 is added and refluxed for a long time. The new chromium compound is obtained by evaporation and salting out.

Claims (1)

PATENTANSPRUCFI Verfahren zur Herstellung eines neuen chromhaltigen Farbstoffes, dadurch gekenn zeichnet, dass man den Azofarbstoff, welcher durch Kuppeln. der Diazoverbindung des 4- Chlor-2-amino-l-oxybenzols mit 1-0xynaph- tha.Iin-3,8-disulfamid hergestellt werden kann, mit Chromformiat behandelt. Der so erhaltene Farbstoff bildet ein dunkles Pul ver, das sich- in Wasser mit blauvioletter Farbe löst. PATENT APPLICATION Process for the production of a new chromium-containing dye, characterized in that one uses the azo dye, which is produced by coupling. the diazo compound of 4-chloro-2-amino-1-oxybenzene can be prepared with 1-0xynaphtha.Iin-3,8-disulfamide, treated with chromium formate. The dye thus obtained forms a dark powder that dissolves in water with a blue-violet color. Er färbt Wolle aus saurem Bade in sehr egalen und reinen rotblauen Tönen von hervorragenden Echtheitseigen schaften. It dyes wool from an acid bath in very even and pure red-blue tones with excellent fastness properties.
CH115476D 1922-11-18 1924-04-20 Process for the production of a chromium-containing dye. CH115476A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH101615T 1922-11-18
CH115476T 1924-04-20

Publications (1)

Publication Number Publication Date
CH115476A true CH115476A (en) 1926-07-01

Family

ID=25706038

Family Applications (1)

Application Number Title Priority Date Filing Date
CH115476D CH115476A (en) 1922-11-18 1924-04-20 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH115476A (en)

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