CH260786A - Process for the preparation of a metallizable monoazo dye. - Google Patents
Process for the preparation of a metallizable monoazo dye.Info
- Publication number
- CH260786A CH260786A CH260786DA CH260786A CH 260786 A CH260786 A CH 260786A CH 260786D A CH260786D A CH 260786DA CH 260786 A CH260786 A CH 260786A
- Authority
- CH
- Switzerland
- Prior art keywords
- blue
- sulfonic acid
- red
- acid
- creates
- Prior art date
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
- C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
- C09B3/02—Benzathrones
- C09B3/06—Preparation from starting materials already containing the benzanthrone nucleus
- C09B3/10—Amino derivatives
-
- 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)
- Paper (AREA)
Description
Verfahren zur Herstellung eines metallisierbaren Monoazofarbstoffes. Gegenstand vorliegenden Patentes bildet ein Verfahren zur Herstellung eines metal- lisierbaren Monoazofarbstoffes. Das Verfah ren ist dadurch gekennzeichnet, dass man die Diazoverbindung von 2 - Amino - Benzol -1 sulfonsäure-4-sulfonsäuirephenylamid-4'-oxy- 5'-earbonsäure mit 2-Phenylamino-8-oxy-naph- thalin-6-sulfonsäure in saurem Medium kup pelt.
Der entstandene neue Farbstoff stellt ein blaurotes Pulver dar, das sich leicht in Wasser mit blauroter Farbe löst. Im Chrom druck auf Baumwolle erzeugt er eine leuch tend blaustichig rote Nuance, auf Wolle aus saurem Bade ebenfalls ein blaustichiges Rot, das sich beim Nachchromieren kaum ver ändert.
<I>Beispiel:</I> 38,8 Teile 2-Amino-benzol-l-sulfonsäure-4- sulfonsäurephenylamid - 4'- oxy-5'-carbonsäure werden in 250 Teilen Wasser neutral gelöst und zusammen mit 6,9 Teilen Nitrit in 100 Teilen Wasser unter Kühlung auf 30 Teile Salzsäure konz. lind 30 Teile Wasser aufgetropft, wobei die Temperatur 3 nicht übersteigen soll. Die gelbbraune Diazoverbin- dung ist zum grössten Teil ausgefallen.
Zur erhaltenen Suspension, die deutlich kongo sauer reagieren und keine überschüssige sal petrige Säure enthalten soll, tropft man dann innert 1 Stunde eine schwach lackmussaure Lö sung von 31,5 Teilen 2-Phenylamino-8-oxy- naphthalin-6-sulfonsäure in 100 Teilen Was ser. Die Kupplung setzt rasch ein und ist in 2-3 Stunden praktisch beendet. Eventuell noch vorhandene Mineralsäure wird durch Zugabe von etwas Natriumacetatlösung abge stumpft.
Man lässt über Nacht rühren, ohne weiter zu kühlen, wärmt auf, neutralisiert dann bei 80 mit etwa 110 Teilen Sodalösung 15 Jo ig und gibt 20 % Kochsalz zu. Bei 30 bis 40 wird der Farbstoff abfiltriert und mit etwas 20%iger Sole gewaschen. Nach dem Trocknen stellt der Farbstoff ein blaurotes Pulver dar, das sich leicht in Wasser mit blau roter Farbe und in konz. Schwefelsäure mit gelbroter Farbe löst.
Im Chromdruck auf Baumwolle erzeugt er eine leuchtend blau stichig rote Nuance, auf Wolle aus saurem Bade ebenfalls ein blaustichiges Rot, das sich beim Nachchromieren kaum verändert.
Process for the preparation of a metallizable monoazo dye. The subject of the present patent is a process for the production of a metallizable monoazo dye. The procedural ren is characterized in that the diazo compound of 2 - amino - benzene -1 sulfonic acid-4-sulfonsäuirephenylamid-4'-oxy-5'-carboxylic acid with 2-phenylamino-8-oxy-naphthalin-6-sulfonic acid couplings in acidic medium.
The resulting new dye is a blue-red powder that easily dissolves in water with a blue-red color. In the chrome print on cotton, it creates a luminous blue-tinged red shade, and on wool from an acidic bath it also creates a blue-tinged red that hardly changes when it is re-chromed.
<I> Example: </I> 38.8 parts of 2-amino-benzene-1-sulfonic acid-4-sulfonic acid-phenylamide - 4'-oxy-5'-carboxylic acid are dissolved neutrally in 250 parts of water and together with 6.9 parts Nitrite in 100 parts of water with cooling to 30 parts of concentrated hydrochloric acid. and 30 parts of water are added dropwise, the temperature not exceeding 3. The yellow-brown diazo compound has largely failed.
A weakly lacquer acid solution of 31.5 parts of 2-phenylamino-8-oxynaphthalene-6-sulfonic acid in 100 parts is then added dropwise within 1 hour to the suspension obtained, which is clearly acidic to the Congo and should not contain any excess saline acid Water. The coupling sets in quickly and is practically complete in 2-3 hours. Any mineral acid that may still be present is blunted by adding a little sodium acetate solution.
The mixture is left to stir overnight without further cooling, warms up, then neutralized at 80 with about 110 parts of soda solution 15 yeast and 20% table salt is added. At 30 to 40, the dye is filtered off and washed with a little 20% strength brine. After drying, the dye is a blue-red powder that easily dissolves in water with a blue-red color and in conc. Sulfuric acid dissolves with a yellow-red color
In the chrome print on cotton it creates a bright blue-tinged red shade, on wool from an acid bath it also creates a blue-tinged red that hardly changes when it is re-chrome-plated.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH260786T | 1946-12-20 | ||
CH253954T | 1946-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH260786A true CH260786A (en) | 1949-03-31 |
Family
ID=25729807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH260786D CH260786A (en) | 1946-12-20 | 1946-12-20 | Process for the preparation of a metallizable monoazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH260786A (en) |
-
1946
- 1946-12-20 CH CH260786D patent/CH260786A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH286500A (en) | Process for the preparation of a monoazo dye. | |
CH260786A (en) | Process for the preparation of a metallizable monoazo dye. | |
CH260785A (en) | Process for the preparation of a metallizable monoazo dye. | |
CH260783A (en) | Process for the preparation of a metallizable monoazo dye. | |
CH260782A (en) | Process for the preparation of a metallizable monoazo dye. | |
CH260787A (en) | Process for the preparation of a metallizable monoazo dye. | |
CH261368A (en) | Process for the preparation of a monoazo dye. | |
CH259034A (en) | Process for the preparation of a metallizable monoazo dye. | |
CH267275A (en) | Process for the preparation of a monoazo dye. | |
CH180293A (en) | Process for the production of a new dye. | |
CH251393A (en) | Process for the preparation of a new wool azo dye. | |
CH247716A (en) | Process for the preparation of a new monoazo dye. | |
CH267277A (en) | Process for the preparation of a monoazo dye. | |
CH261836A (en) | Process for the preparation of a monoazo dye. | |
CH299201A (en) | Process for the preparation of a monoazo dye. | |
CH116743A (en) | Process for the production of a new dye. | |
CH115462A (en) | Process for the production of a new azo dye. | |
CH267274A (en) | Process for the preparation of a monoazo dye. | |
CH267276A (en) | Process for the preparation of a monoazo dye. | |
CH116745A (en) | Process for the production of a new dye. | |
CH180294A (en) | Process for the production of a new dye. | |
CH189037A (en) | Process for the preparation of a water-soluble monoazo dye. | |
CH261837A (en) | Process for the preparation of a monoazo dye. | |
CH260784A (en) | Process for the preparation of a metallizable monoazo dye. | |
CH279910A (en) | Process for the preparation of a monoazo dye. |