CH308418A - Process for the production of a cobalt-containing azo dye. - Google Patents
Process for the production of a cobalt-containing azo dye.Info
- Publication number
- CH308418A CH308418A CH308418DA CH308418A CH 308418 A CH308418 A CH 308418A CH 308418D A CH308418D A CH 308418DA CH 308418 A CH308418 A CH 308418A
- Authority
- CH
- Switzerland
- Prior art keywords
- cobalt
- azo dye
- containing azo
- production
- parts
- 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
- 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
- C09B45/20—Monoazo compounds containing cobalt
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines kohalthaltigen Azofarbstoffes. Gegenstand vorliegenden Patentes ist ein Verfahren zur Herstellung eines kobalthal- tigen Azofarbstoffes. Das Verfahren ist da durch gekennzeichnet, dass man diazotiertes 2-Amino-plienol--1-äthylsulfon mit Acetessig- sätire-2,4-xylidid kuppelt und die erhaltene Verbindung mit kob#Itabgebenden Mitteln be handelt.
Der erhaltene neue, kobalthaltige Azofarb- stoff stellt ein gelbbraunes Pulver dar, das Wolle aus neutralem oder sellwaeh saurem Bade in gelben Tönen von sehr guter Wasch-, Walk-, Seewasser-, Reib- und Liehteehtheit färbt.
<I>Beispiel:</I> 20,1 Teile 2-Amino-ph-enol-4-äthyl-siilfon werden in<B>250</B> Teilen heissem Wasser mit <B>17,5</B> Teilen konz. Salzsäure gelöst, auf 5(1 ab gekühlt und mit einer 33proz. Natriumnitrit- lösung (entsprechend<B>6,9</B> Teilen Natrium- nitrit 1.001/o) diazotiert. Durch Zugabe von Natriumblearbonat stellt.
man neutral und giesst die Diazonhunverbind-ung bei<B>0</B> bis<B>50</B> in eine Lösun- von<B>21,6</B> Tellen Acetessigsäure- 2"4-x#,1,idid, <B>11</B> Volumtellen 1,0n--Natronlauge und 1.2 Teilen wagserfreier Soda in<B>800</B> Teilen Wasser.
Nach Beendigung der Farbstoffbil- dung fl-Itriert man den ausgefallenen Farb- stoff ab und wäscht ihn mit verdünnter Koch- saWösung aus.
Da-nach sehlämmt man ihn in <B>800</B> Teilen Wasser von<B>800</B> an, gibt<B>60</B> Teile Kobaltacetatlösung (entsprechend 3,54 Teilen Kobalt) zu, erhitzt während drei Stunden auf <B>800,</B> stellt durch Zugabe von Soda alkalisch und erhitzt noch weitere drei Stunden auf<B>80</B> bis<B>850.</B> Hierauf gibt man Kochsalz zu, bis der kobalthaltige Farbstoff vollstän, dig ausgefal len ist, filtriert ab und trocknet.
Der neue Farbstoff, ein gelbbraunes Pulver, färbt'Wolle aus neutralem oder schwach saurem Bade in gelben Tönen von sehr guter MIaseh-, Walk, Seewasser-, Reib- und Liehtechtheit.
Process for the production of an azo dye containing carbon. The present patent relates to a process for the production of a cobalt-containing azo dye. The process is characterized in that diazotized 2-amino-plienol-1-ethylsulfone is coupled with acetoacetate-2,4-xylidide and the compound obtained is treated with kob # It-releasing agents.
The new, cobalt-containing azo dye obtained is a yellow-brown powder that dyes wool from neutral or sellwaeh acidic baths in yellow shades of very good washing, fulling, seawater, rubbing and lightness resistance.
<I> Example: </I> 20.1 parts of 2-amino-ph-enol-4-ethylsilfon are added to <B> 250 </B> parts of hot water with <B> 17.5 </B> Share conc. Dissolved hydrochloric acid, cooled to 5 (1 and diazotized with a 33% sodium nitrite solution (corresponding to <B> 6.9 </B> parts of sodium nitrite 1,001 / o). Adding sodium carbonate provides.
neutral and pour the diazonium compound at <B> 0 </B> to <B> 50 </B> in a solution of <B> 21.6 </B> parts of acetoacetic acid- 2 "4-x #, 1, idid, <B> 11 </B> Volumtellen 1.0n - sodium hydroxide solution and 1.2 parts of carbohydrate-free soda in <B> 800 </B> parts of water.
When the dyestuff has formed, the dyestuff which has precipitated out is filtered off and washed out with dilute cooking solution.
Then you lamb it in <B> 800 </B> parts of water of <B> 800 </B>, <B> 60 </B> parts of cobalt acetate solution (corresponding to 3.54 parts of cobalt) are added, heated for three hours to <B> 800, </B> makes it alkaline by adding soda and heating for another three hours to <B> 80 </B> to <B> 850. </B> Then add table salt, until the cobalt-containing dye is completely precipitated, filtered off and dried.
The new dye, a yellow-brown powder, dyes wool from neutral or weakly acidic baths in yellow tones with very good fastness to glass, fulling, sea water, rubbing and lightness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH308418T | 1952-01-05 | ||
CH304386T | 1952-01-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH308418A true CH308418A (en) | 1955-07-15 |
Family
ID=25734786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH308418D CH308418A (en) | 1952-01-05 | 1952-01-05 | Process for the production of a cobalt-containing azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH308418A (en) |
-
1952
- 1952-01-05 CH CH308418D patent/CH308418A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE670935C (en) | Process for the production of complex copper compounds from polyazo dyes | |
CH308418A (en) | Process for the production of a cobalt-containing azo dye. | |
DE659841C (en) | Process for the preparation of o-oxyazo dyes | |
CH308414A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308415A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308417A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308416A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308419A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308426A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308411A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308408A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308409A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308421A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308424A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308410A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308425A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308423A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308420A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308422A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308412A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308407A (en) | Process for the production of a cobalt-containing azo dye. | |
CH308413A (en) | Process for the production of a cobalt-containing azo dye. | |
AT156473B (en) | Process for dyeing wool and semi-wool. | |
AT115222B (en) | Process for the preparation of azo dyes. | |
CH337593A (en) | Process for the preparation of chromium-containing monoazo dyes |