DE519910C - Process for the production of chromium-containing azo dyes - Google Patents

Process for the production of chromium-containing azo dyes

Info

Publication number
DE519910C
DE519910C DEG70922D DEG0070922D DE519910C DE 519910 C DE519910 C DE 519910C DE G70922 D DEG70922 D DE G70922D DE G0070922 D DEG0070922 D DE G0070922D DE 519910 C DE519910 C DE 519910C
Authority
DE
Germany
Prior art keywords
chromium
production
azo dyes
oxynaphthalene
containing azo
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEG70922D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemische Ind Ges
GESELLSCHAFT fur CHEMISCHE INDUSTRIE
BASF Schweiz AG
Original Assignee
Chemische Ind Ges
GESELLSCHAFT fur CHEMISCHE INDUSTRIE
Gesellschaft fuer Chemische Industrie in Basel CIBA
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 Chemische Ind Ges, GESELLSCHAFT fur CHEMISCHE INDUSTRIE, Gesellschaft fuer Chemische Industrie in Basel CIBA filed Critical Chemische Ind Ges
Application granted granted Critical
Publication of DE519910C publication Critical patent/DE519910C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/02Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14Monoazo compounds
    • C09B45/16Monoazo compounds containing chromium

Landscapes

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

Description

Verfahren zur Herstellung von ehrombaltigen Azofarbstoffen Es wurde gefunden, daß neue chromhaltige Azofarbstoffe entstehen, wenn man diejenigen o-Oxvazofarbstoffe. welche erhalten werden durch Vereinigen von i-OxN7naplithalin-3,8- bzw. 4, 8-disulfosäure mit den Diazoverbindungen, welche sich von der i--Amino-2-oxynaphthalin-4-sulfonsäure ableiten, mit ehromabgebenden Mitteln behandelt. Die neuen Farbstoffe zeichnen sich durch ihre Echtheitseigenschaften und, sofern sie sich von unnitrierten Diazoverbindungen ableiten, durch die reinen blauen Farbtöne ihrer sauren Wollfärbungen aus.Process for the production of azo dyes containing Ehromomb It was found that new chromium-containing azo dyes arise when one of those o-oxvazo dyes. which are obtained by combining i-OxN7naplithalin-3,8- and 4,8-disulfonic acid, respectively with the diazo compounds, which differ from i - amino-2-oxynaphthalene-4-sulfonic acid derive, treated with Ehrom-donating means. The new dyes stand out by their fastness properties and, provided that they differ from non-nitrided diazo compounds derive from the pure blue hues of their acidic wool dyes.

Beispiel i 55,4Teile des Farbstoffes aus diazotierter i-Amino-2-oxynaphthalin-4-Sulfonsäure und i-Oxynaphthalin-4, 8-disulfonsäure werden in iooo Teilen Wasser kochend. gelöst, mit einer Fluorchromlösung entsprechend 2o Teilen Chromoxyd versetzt und so lange unter Zusatz von Glaspulver am Rückflußkühler gekocht, bis sich der chromhaltige Farbstoff gebildet hat. Die Farbstofflösung wird hierauf etwas eingedampft und der neue Farbstoff durch Aussalzen gewonnen. Derselbe stellt ein schwärzliches Pulver dar, löst sich in Wasser mit blauer '. in verdünnter Natronlauge mit violetter, in konzentrierter Schwefelsäure mit schwärzlichblauer Farbe und färbt Wolle im schwefelsauren Färbebade in echten blauen Tönen an. Beispiel 2 59,9 Teile des Farbstoffes der nitrierterl Diazoverbindung der i-Amino-2-oxynaphthalin-4-sulfonsäure und i-Oxynaphthalin-4, 8-disulfonsä.ure werden in ioooTeilen Wasser kochend gelöst, mit einer Fluorchrornlösung entsprechend .2oTeilen Chromoxyd versetzt und so lange unter Zusatz von Glaspulver am Rückflußkühler gekocht, bis sich der chromhaltige Farbstoff gebildet hat. Die Farbstofflösung wird hierauf etwas eingedampft und der neue Farbstoff durch Aussalzen gewonnen.Example i 55.4 parts of the dye from diazotized i-amino-2-oxynaphthalene-4-sulfonic acid and i-oxynaphthalene-4,8-disulfonic acid are boiled in 1,000 parts of water. dissolved, mixed with a fluorochrome solution corresponding to 20 parts of chromium oxide and boiled with the addition of glass powder on the reflux condenser until the chromium-containing dye has formed. The dye solution is then slightly evaporated and the new dye is obtained by salting out. It is a blackish powder, dissolves in water with a blue color. in dilute caustic soda with violet, in concentrated sulfuric acid with a blackish blue color and dyes wool in the sulfuric acid dye bath in real blue tones. Example 2 59.9 parts of the dyestuff of the nitrated diazo compound of i-amino-2-oxynaphthalene-4-sulfonic acid and i-oxynaphthalene-4,8-disulfonic acid are dissolved in 100 parts of boiling water, and a fluorochromium solution corresponding to .2o parts of chromium oxide is added and boiled with the addition of glass powder on the reflux condenser until the chromium-containing dye has formed. The dye solution is then slightly evaporated and the new dye is obtained by salting out.

Derselbe stellt ein schwärzliches Pulver dar, löst sich in '\blasser mit schwärzlichblauer', in verdünnter 'Natronlauge mit rotvioletter, in konzentrierter Schwefelsäure mit schwärzlichrotvioletter Farbe und färbt Wolle im schwefelsanren Färbebade in schwarzen Tönen von guten Echtheitseigenschaften an.It is a blackish powder, dissolves in '\ paler with blackish blue ', in dilute' sodium hydroxide solution with red-violet, in concentrated Sulfuric acid with blackish red-violet color and dyes wool in sulfuric acid Dyebath in black tones with good fastness properties.

Claims (1)

PATEINYTANSPRUCH: Verfahren zur Herstellung neuer Chromverbindungen, dadurch gekennzeichnet, daß man diejenigen o-Oxyazofarbstoffe, welche erhalten werden durch Vereinigen von i-Oxvnaphthalin-3,8- bzw. 4,8-disulfonsäure mit den Diazoverbindungen, welche sich von der i-Arnino-2-oxynaphthalin-4-Stllfonsäure ableiten, mit chrornabgebenden Mitteln behandelt.PATEINYT CLAIM: Process for the production of new chromium compounds, characterized in that those o-oxyazo dyes which are obtained by combining i-oxynaphthalene-3,8- or 4,8-disulfonic acid with the diazo compounds, which are derived from i-amino-2-oxynaphthalene-4-stifonic acid, with chromium-releasing Means treated.
DEG70922D 1925-03-28 1926-03-13 Process for the production of chromium-containing azo dyes Expired DE519910C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH519910X 1925-03-28

Publications (1)

Publication Number Publication Date
DE519910C true DE519910C (en) 1931-03-05

Family

ID=4517888

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG70922D Expired DE519910C (en) 1925-03-28 1926-03-13 Process for the production of chromium-containing azo dyes

Country Status (1)

Country Link
DE (1) DE519910C (en)

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