CH156319A - Process for the production of a chromium-containing dye. - Google Patents

Process for the production of a chromium-containing dye.

Info

Publication number
CH156319A
CH156319A CH156319DA CH156319A CH 156319 A CH156319 A CH 156319A CH 156319D A CH156319D A CH 156319DA CH 156319 A CH156319 A CH 156319A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
production
containing dye
oxynaphthalene
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 CH156319A publication Critical patent/CH156319A/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

  

      Zusatzpatent        zum.        Hauptpatent    Nr.     1"02880.       Verfahren zur Herstellung     eines        chromhaltigen        Farbstoffes.       Es wurde gefunden, dass ein neuer     chrom-          haltiger    Farbstoff, der auf jede     chromierbare     Gruppe des     Farbstoffmoleküls    1 Atom Chlor  enthält, erhalten wird, wenn man den Farb  stoff aus dianotierter     2-Amino-l-oxyriaphtha-          lici-4,8-disulfosäure    und     2-Ogynaphthalin    mit  Chromsulfat behandelt.

    



  Der gebildete Farbstoff stellt ein dunkel  gefärbtes Pulver dar, das sich in Wasser mit  blauer Farbe löst und Wolle aus schwefel  saurem Bade in     rotstichig    blauen Tönen färbt.  <I>Beispiel:</I>  47,4 Teile des Farbstoffes aus dianotierter       2-Amino-l-oxynaphthalin-4,8-disulfosäure    und       2-Oxynaphthalin    werden in 800 Teilen Wasser  gelöst und mit einer 9,1 Teile     Cr20a    und  17,7 Teile     B2804    enthaltenden Menge einer       Chromsulfatlösung    während 20 Stunden am       Rückflusskühler    zum Sieden erhitzt.

       Hierauf       wird die     rotstichig    blaue Lösung mit Soda  schwach alkalisch gestellt, dann vom abge  schiedenen     Chromhydroxyd        abfiltriert    und das  Filtrat zur Isolierung des     Farbstoffes    im  Vakuum zur Trockne verdampft.



      Additional patent for. Main patent No. 1 "02880. Process for the production of a chromium-containing dye. It has been found that a new chromium-containing dye which contains 1 atom of chlorine for each chromable group of the dye molecule is obtained if the dye is obtained from dianotated 2- Amino-1-oxyriaphthalene-4,8-disulfonic acid and 2-ogynaphthalene treated with chromium sulfate.

    



  The dye formed is a dark-colored powder that dissolves in water with a blue color and dyes wool from a sulfuric acid bath in reddish blue tones. <I> Example: </I> 47.4 parts of the dye from dianotized 2-amino-1-oxynaphthalene-4,8-disulfonic acid and 2-oxynaphthalene are dissolved in 800 parts of water and 9.1 parts of Cr20a and 17 , 7 parts B2804 containing amount of a chromium sulfate solution heated to boiling for 20 hours on the reflux condenser.

       Then the reddish blue solution is made slightly alkaline with soda, then filtered off from the separated chromium hydroxide and the filtrate is evaporated to dryness in vacuo to isolate the dye.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines ehrom- haltigen Farbstoffes, der auf jede chromier- bare Gruppe des Farbstoffmoleküls 1 Atom Chrom enthält, dadurch gekennzeichnet, dass man den Farbstoff aus dianotierter 2-Amino- 1-oxynaphthalin-4,8-disulfosäure und 2-Oxy- naphthalin mit Chromsulfat behandelt. PATENT CLAIM A process for the production of an e-chromium-containing dye which contains 1 atom of chromium for each chromable group of the dye molecule, characterized in that the dye is made from dianotated 2-amino-1-oxynaphthalene-4,8-disulfonic acid and 2-oxy - naphthalene treated with chromium sulfate. Der gebildete Farbstoff stellt ein dunkel gefärbtes Pulver dar, das sich in Wasser mit blauer Farbe löst und Wolle aus schwefel saurem Bade in rotstichig blauen Tönen färbt. The dye formed is a dark-colored powder that dissolves in water with a blue color and dyes wool from a sulfuric acid bath in reddish blue tones.
CH156319D 1929-12-18 1929-12-18 Process for the production of a chromium-containing dye. CH156319A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH156319T 1929-12-18
CH152880T 1929-12-18

Publications (1)

Publication Number Publication Date
CH156319A true CH156319A (en) 1932-07-31

Family

ID=25716053

Family Applications (1)

Application Number Title Priority Date Filing Date
CH156319D CH156319A (en) 1929-12-18 1929-12-18 Process for the production of a chromium-containing dye.

Country Status (1)

Country Link
CH (1) CH156319A (en)

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