CH131503A - Process for the production of a new chromium-containing azo dye. - Google Patents

Process for the production of a new chromium-containing azo dye.

Info

Publication number
CH131503A
CH131503A CH131503DA CH131503A CH 131503 A CH131503 A CH 131503A CH 131503D A CH131503D A CH 131503DA CH 131503 A CH131503 A CH 131503A
Authority
CH
Switzerland
Prior art keywords
dye
chromium
blue
gray
production
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 CH131503A publication Critical patent/CH131503A/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 neuen chromhaltigen     Azofarbstoffes.       Es wurde gefunden, dass man einen  neuen, wertvollen     ehromhaltigen        Azofarb-          =toff    erhält, wenn man den Farbstoff aus       rliazotiertem        5-Nitro-2-amino-l-phenol        und     2 -     Acetylamino    - 5 -     oxyn.aphtalin    - 7 -     sulf        osäure     mit chromabgebenden     Mitteln    behandelt.

    Der neue chromhaltige Farbstoff stellt     trok-          ken    ein     dunkelblaues    Pulver dar, welches  sich in Wasser mit blaugrauer und in ver  dünnter     Sodalösung    mit     rotstichig    grauer  Farbe löst. Der Farbstoff färbt Wolle aus       sehwefelsaurem    Bade in reinen blaugrauen,       alkali-    und     wa.lkechten    Tönen an. Baum  wolle wird aus neutralem Bade ebenfalls in  echten blaugrauen Tönen gefärbt.  



  <I>Beispiel:</I>  4,46 Gewichtsteile .des Farbstoffes aus       diazotiertem        5-Nitro-2-amino-l-phenol    und  2     -Acetylamino    - 5     -oxynaphtalin    - 7 -     sulfosäure     werden in 400 Teilen Wasser gelöst und mit  einer 1,52 Gewichtsteilen     Cr20.-    entsprechen  den Menge     Fluorchrom    24 Stunden zum Sie-    den erhitzt; die gebildete Chromverbindung  wird hierauf mit Kochsalz abgeschieden,  ausgewaschen und bei mässiger Temperatur  getrocknet.



  Process for the production of a new chromium-containing azo dye. It has been found that a new, valuable Ehrom-containing azo dye is obtained if the dye is made from rliazotized 5-nitro-2-amino-1-phenol and 2 - acetylamino - 5 - oxyn.aphthalene - 7 - sulfonic acid treated chromium-releasing agents.

    The new chromium-containing dye is a dry, dark blue powder that dissolves in water with a blue-gray color and in diluted soda solution with a reddish gray color. The dye stains wool from a sulfuric acid bath in pure blue-gray, alkaline and water-resistant shades. Cotton from neutral bath is also dyed in real blue-gray tones.



  <I> Example: </I> 4.46 parts by weight of the dye from diazotized 5-nitro-2-amino-1-phenol and 2-acetylamino-5-oxynaphthalene-7-sulfonic acid are dissolved in 400 parts of water and treated with a 1.52 parts by weight of Cr20.- correspond to the amount of fluorochrome heated to boiling for 24 hours; the chromium compound formed is then deposited with common salt, washed out and dried at a moderate temperature.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Azofarbstoffes, dadurch gekenn zeichnet, dass man den Farbstoff .aus diazo- tiertem 5-Nitro-2-amino-l-phenol und 2-Ace- tylamino-5-oxynaphtalin-7-sulfosäure mit chromabgebenden Mitteln behandelt. Der neue chromhaltige Farbstoff stellt trocken ein dunkelblaues Pulver dar, welches .sich in Wasser mit blaugrauer und in verdünnter Sodalösung mit rotstichig grauer Farbe löst. PATENT CLAIM: Process for the production of a chromium-containing azo dye, characterized in that the dye is made from diazotized 5-nitro-2-amino-1-phenol and 2-acetylamino-5-oxynaphthalene-7-sulfonic acid treated chromium-releasing agents. The new chromium-containing dye is a dark blue powder when dry, which dissolves in water with a blue-gray color and in dilute soda solution with a reddish gray color. Der Farbstoff färbt Wolle aus schwefel saurem Bade in reinen blaugrauen, alkali- und walkechten Tönen an. Baumwolle wird aus neutralem Bade ebenfalls in echten blau grauen Tönen gefärbt. The dye stains wool from a sulphurous acid bath in pure blue-gray, alkali-fast and milled tones. Cotton from neutral bath is also dyed in real blue-gray tones.
CH131503D 1927-08-19 1927-08-19 Process for the production of a new chromium-containing azo dye. CH131503A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH128006T 1927-08-19
CH131503T 1927-08-19

Publications (1)

Publication Number Publication Date
CH131503A true CH131503A (en) 1929-02-15

Family

ID=25711022

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131503D CH131503A (en) 1927-08-19 1927-08-19 Process for the production of a new chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH131503A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5123930A (en) * 1984-04-27 1992-06-23 Sandoz Ltd. 1:2 chromium and cobalt complexes of monoazo compounds for drying porous oxide layers on aluminum and aluminum alloy substrates
US5283325A (en) * 1984-04-27 1994-02-01 Sandoz Ltd. 1:2 chromium and cobalt complexes of monoazo compounds having further unsubstituted or substituted nitro-2-hydroxyphenyl diazo component radicals and 6- or 7-acyl-amino-1-hydroxy-3-sulfonaphthalene coupling component radicals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5123930A (en) * 1984-04-27 1992-06-23 Sandoz Ltd. 1:2 chromium and cobalt complexes of monoazo compounds for drying porous oxide layers on aluminum and aluminum alloy substrates
US5283325A (en) * 1984-04-27 1994-02-01 Sandoz Ltd. 1:2 chromium and cobalt complexes of monoazo compounds having further unsubstituted or substituted nitro-2-hydroxyphenyl diazo component radicals and 6- or 7-acyl-amino-1-hydroxy-3-sulfonaphthalene coupling component radicals

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