CH123688A - Process for the preparation of a vat dye of the thioindigo series. - Google Patents
Process for the preparation of a vat dye of the thioindigo series.Info
- Publication number
- CH123688A CH123688A CH123688DA CH123688A CH 123688 A CH123688 A CH 123688A CH 123688D A CH123688D A CH 123688DA CH 123688 A CH123688 A CH 123688A
- Authority
- CH
- Switzerland
- Prior art keywords
- vat
- dye
- preparation
- formula
- vat dye
- 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
- C09B7/00—Indigoid dyes
- C09B7/12—Other thionaphthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum.Hauptpatent Nr. <B>120806.</B> Verfahren zur Darstellung eines Küpenfarbstoffes der Thloindigoreihe. Im Hauptpatent und seinen bisherigen Zusätzen ist ein Verfahren zur Darstellung von Küpenfarbstoffen der Thioindigoreihe be- schriebeu, darin bestehend, dass man 2-Ami- noperinaphtoxypenthiophen mit einem 2.3- Diketodihydro-thionaphtenkörper kondensiert.
Es wurde nuti gefunden, dass man zu einem derartigen grünfärbenden Küpenfarbstoff der
EMI0001.0018
gelangt, wenn man ein 2-Acylamiiiopei-inapht-
EMI0001.0019
mit einem 2.3-Diketodihydro-4.5-benzotliio- naphtenkörper der Formel:
EMI0001.0022
worin R, einen sich bei der Kondensation abspaltenden Rest bedeutet, kondensiert und aus dem Kondensationsprodukt die Acylgruppe durch Verseifen abspaltet.
Trocken ist der Farbstoff ein dunkelgrünes Pulver, in konzentrierter Schwefelsäure mit blauer Farbe löslieli, er gibt mit alkalischem Hydrosulfit eine rötlich gefärbte Küpe und färbt Baumwolle und Wolle in dieser Küpe in dunkelgrünen Tönen von hervorragender Echtheit.
<I>Beispiel:</I> <B>25,7</B> Teile 2-Acetylaininopenthiopheii und 21,4 Teile 4.5-Benzo-2.3-diketodihydrothio- naphten werden mit 12 Teilen wassei-freiem Natriumacetat und 400 Teilen Essigsäure- anhydrid einige Zeit auf 80-9011 erwärmt. Der schon in der Wärine ausfallende Farb stoff wird filtriert, gewaschen und getrocknet. <B>Er</B> färbt in violetten Tönen.
Um die Acylgruppe abzuspalten, wird der Farbstoff in konzentrierter Schwefelsäure ge löst und<B>so</B> viel Wasser zugegeben, dass eine 501/oige Säure entsteht. Hierauf wird einige Zeit gekocht und der abgeschiedene Farbstoff filtriert, gewaschen und getrocknet.
Mit gleichem Ei-folge kann man auch das 2-Benzoylamiiiopei-ii)aphtoxypenthiopheii ver wenden.
An Stelle des 4.5-Benzo-2.3-dilzetodillydi-o- thionaphtens kann man das 2-Dichlor- oder 2-Dibroi.nderivat oder ein entsprechendes Anil verwenden.
Additional patent to the main patent no. <B> 120806. </B> Process for the preparation of a vat dye of the Thloindigo series. In the main patent and its previous additions, a process for the preparation of vat dyes of the thioindigo series is described, consisting in condensing 2-aminoperinaphtoxypenthiophene with a 2,3-diketodihydro-thionaphthene body.
It has been found that such a green-colored vat dye can be used
EMI0001.0018
if you get a 2-acylamiiiopei-inapht-
EMI0001.0019
with a 2,3-diketodihydro-4,5-benzotliionaphthene body of the formula:
EMI0001.0022
where R, denotes a radical which is split off during the condensation, condenses and splits off the acyl group from the condensation product by saponification.
When dry, the dye is a dark green powder, soluble in concentrated sulfuric acid with a blue color, it gives a reddish colored vat with alkaline hydrosulphite and dyes cotton and wool in this vat in dark green shades of excellent fastness.
<I> Example: </I> <B> 25.7 </B> parts of 2-acetylaininopenthiopheii and 21.4 parts of 4.5-benzo-2.3-diketodihydrothionaphthene are mixed with 12 parts of anhydrous sodium acetate and 400 parts of acetic acid anhydride heated to 80-9011 for some time. The dye that precipitates in the heat is filtered, washed and dried. <B> He </B> colors in purple tones.
To split off the acyl group, the dye is dissolved in concentrated sulfuric acid and so much water is added that a 50% acid is formed. It is then boiled for some time and the deposited dye is filtered, washed and dried.
The 2-Benzoylamiiiopei-ii) aphtoxypenthiopheii can also be used in the same way.
Instead of the 4.5-benzo-2.3-dilzetodillydi-o-thionaphthene, the 2-dichloro- or 2-dibroi.nderivat or a corresponding anil can be used.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH120806T | 1926-03-29 | ||
CH123688T | 1926-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH123688A true CH123688A (en) | 1927-12-16 |
Family
ID=25709577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH123688D CH123688A (en) | 1926-03-29 | 1926-03-29 | Process for the preparation of a vat dye of the thioindigo series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH123688A (en) |
-
1926
- 1926-03-29 CH CH123688D patent/CH123688A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH123688A (en) | Process for the preparation of a vat dye of the thioindigo series. | |
DE451549C (en) | Process for the preparation of green-coloring, sulphurous cow dyes | |
DE536294C (en) | Process for the preparation of Kuepen dyes of the anthraquinone series | |
DE452449C (en) | Process for the production of green dyes of the benzanthrone series | |
DE374836C (en) | Process for the production of Kuepen dyes of the anthraquinone series | |
DE451720C (en) | Process for the production of Kuepen dyes | |
AT55039B (en) | Process for the preparation of vat dyes. | |
DE458447C (en) | Process for the production of Kuepen dyes | |
DE424881C (en) | Process for the preparation of Kuepen dyes | |
AT104385B (en) | Process for the production of dyes. | |
CH123858A (en) | Process for the preparation of a vat dye of the 2-perinaphtoxypenthiophen-2-indolindigo series. | |
CH123687A (en) | Process for the preparation of a vat dye of the thioindigo series. | |
CH123857A (en) | Process for the preparation of a vat dye of the 2-perinaphtoxypenthiophen-2-indolindigo series. | |
CH122762A (en) | Process for the preparation of a violet vat dye of the 2-thionaphthene-2-indolindigo series. | |
CH104012A (en) | Process for the preparation of a condensation product of the anthraquinone series which can be used as dye and dye intermediate. | |
CH178109A (en) | Process for the production of a new azo dye. | |
CH143400A (en) | Process for the preparation of a vat dye. | |
CH120806A (en) | Process for the preparation of a vat dye of the thioindigo series. | |
CH116087A (en) | Process for the production of an indigoid dye of the anthracene series. | |
CH116084A (en) | Process for the production of an indigoid dye of the anthracene series. | |
CH188221A (en) | Process for the production of a vat dye of the anthraquinone acridone series. | |
CH158134A (en) | Process for the production of a new vat dye. | |
CH123686A (en) | Process for the preparation of a vat dye of the thioindigo series. | |
CH107133A (en) | Process for the production of an indigoid dye. | |
CH124683A (en) | Process for the preparation of a vat dye of the 2-perinaphtoxypenthiophen-2-indolindigo series. |