CH149897A - Process for the production of a chromium-containing dye. - Google Patents
Process for the production of a chromium-containing dye.Info
- Publication number
- CH149897A CH149897A CH149897DA CH149897A CH 149897 A CH149897 A CH 149897A CH 149897D A CH149897D A CH 149897DA CH 149897 A CH149897 A CH 149897A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- chromium
- fiber
- production
- sodium
- 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
- C09B45/01—Complex metal compounds of azo dyes characterised by the method of metallisation
-
- 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
Zusatzpatent zum Hauptpatent Nr. 147796. Verfahren zur Herstellung eines chromhaltigen Farbstoffes. Es wurde gefunden, dass man .einen echt blau färbenden, in Wasser leicht löslichen chromhaltigen. Farbstoff, der aus schwach sauren Farbbädern auf die Faser aufzieht und durch Verstärken der Acidität des Färbebades auf der Faser entwickelt werden kann, erhält,
wenn man den Farbstoff aus der Diazoverbindung der 1-Amino-2-oxy- naphthalin-4-sulfosäure und ss-Naphthol in Gegenwart solcher Mengen Alkalimetall- ionen, die weder aussalzend auf den Farb stoff wirken noch dessen färberische Eigen schaften ungünstig beeinflussen, derart mit chromabgebenden Mitteln behandelt, dass auf jede ehromierbaxe Gruppe des Farbstoffmole- küls mindestens ,
ein Atom Chrom eintritt.
Der erhaltene Farbstoff färbt Wolle in echten blauen Tönen und eignet sich auch zum Bedrucken von Viskos-e in Gegenwart von Chrombeizen.
<I>Beispiel:</I> 41,7 Teile des Natronsalzes des Farb stoffes aus diazotierter 1-Amino-2-oxynaph- thalin-4-sulfosäure und (3-Naphtliol werden in 1500 Teilen siedendem Wasser gelöst und mit 66 Teilen einer 14%igen Chromoxa1at- lösung, enthaltend 9,2 Teile CrA;,, so langi@ gekocht, bis eine herausgenommene Probe zeigt, dass der entstandene Komplex die Llr- forderliohen Eigenschaften zeigt.
Nach Küh len auf<B>50'</B> wird die erhaltene Suspension der Chromverbindung durch Zuceben von 10%iger Natronlauge gelöst und gleich her nach mit einer der verbrauchten Natronlauge äquivalenten Menge Essigsäure neutral o-e- stellt und der Farbstoff durch Aussülzen ab geschieden.
7u einem sich färberisch gleichverhal tenden, Farbstoffe gelangt man auch, wenn man statt mit dem im Beispiel erwähnten Mittel die Chromierung mit andern Mitteln durchführt, so zum Beispiel mit Fluorchrom und Natrium,sulfit; Chromacetat und Na triumacetat;
Chromsulfat, Natriumbisulrit und Natriumacetat; Fluorcbrom, Chromoxa- lat und Natriumoxa.lat; Fluorchrom, Chrom- formiat und Natriumformiat; Chromoxalat und Natriumacetat; Chromsulfat und Alkali- sa.lze organischer Sulfo"äuren; Chromsalze orga.nisclier Sulfosäuren und Natriumsulfat.
Additional patent to main patent No. 147796. Process for the production of a chromium-containing dye. It has been found that a chromium-containing chromium which is really blue in color and is readily soluble in water can be found. Dye which is absorbed onto the fiber from weakly acidic dye baths and which can be developed on the fiber by increasing the acidity of the dye bath,
if you take the dye from the diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid and ss-naphthol in the presence of such amounts of alkali metal ions that neither act salting out on the dye nor affect its coloring properties unfavorably, such treated with chromium-releasing agents that for each Ehromierbaxe group of the dye molecule at least,
an atom of chromium enters.
The dye obtained dyes wool in real blue tones and is also suitable for printing viscose in the presence of chrome stains.
<I> Example: </I> 41.7 parts of the sodium salt of the dye from diazotized 1-amino-2-oxynaphthalene-4-sulfonic acid and (3-naphthiol are dissolved in 1500 parts of boiling water and 66 parts of a 14% chromium oxalate solution containing 9.2 parts of CrA; boiled until a sample taken out shows that the complex formed shows the required properties.
After cooling to <B> 50 '</B>, the resulting suspension of the chromium compound is dissolved by adding 10% sodium hydroxide solution and immediately made neutral with an amount of acetic acid equivalent to the used sodium hydroxide solution, and the dye is separated off by purging .
Dyes can also be obtained with the same behavior in terms of color if, instead of using the agent mentioned in the example, the chromating is carried out with other agents, for example with fluorochrome and sodium sulfite; Chromium acetate and sodium acetate;
Chromium sulfate, sodium bisulrite and sodium acetate; Fluorocbromine, chromium oxalate and sodium oxalate; Fluorochrome, chromium formate and sodium formate; Chromium oxalate and sodium acetate; Chromium sulphate and alkali salts of organic sulphonic acids; chromium salts of organic sulphonic acids and sodium sulphate.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH149897T | 1929-09-26 | ||
CH147796T | 1929-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH149897A true CH149897A (en) | 1931-09-30 |
Family
ID=25715080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH149897D CH149897A (en) | 1929-09-26 | 1929-09-26 | Process for the production of a chromium-containing dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH149897A (en) |
-
1929
- 1929-09-26 CH CH149897D patent/CH149897A/en unknown
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