CH205812A - Process for the production of a new, metal-containing stain dye. - Google Patents
Process for the production of a new, metal-containing stain dye.Info
- Publication number
- CH205812A CH205812A CH205812DA CH205812A CH 205812 A CH205812 A CH 205812A CH 205812D A CH205812D A CH 205812DA CH 205812 A CH205812 A CH 205812A
- Authority
- CH
- Switzerland
- Prior art keywords
- new
- chromium
- molecule
- dye
- gray
- 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
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/08—Disazo dyes in which the coupling component is a hydroxy-amino compound
- C09B33/10—Disazo dyes in which the coupling component is a hydroxy-amino compound in which the coupling component is an amino naphthol
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 202856. Verfahren zur Herstellung eines neuen, metallhaltigen Beizenfarbstoffes. Es wurde gefunden, dass man einen neuen, chromhaltigen Beizenfarbstoff erhält,
wenn man ein Molekül 2-Amino-5-oxynaphthalin- 7-sulfonsäure zuerst in schwach saurem Me dium mit einem Molekül dianotierter 2-Amino- 1-oxybenzol-6-carbonsäure-4-sulfonsäure und nachher in schwach alkalischem Medium mit einem Molekül dianotierter 1-Oxy-2-amino-4- nitrobenzol-6-sulfonsäure kuppelt und den er haltenen Disazofarbstoff mit einer chromab gebenden Substanz behandelt.
<I>Beispiel:</I> 23,3 Teile 2-Amino-l-oxybenzol-6-carbon- säure-4-sulfonsäure werden in üblicher Weise dianotiert und in essigsaurer Lösung auf 23,9 Teile 2-Amino-5-oxynapbthalin-7-sulfonsäure gekuppelt. Dann wird der erhaltene Mono- azofarbstoff in alkalischer Lösung mit der Diazoverbindung aus 23,4 Teilen 1-Oxy-2- amino-4-nitrobenzol-6-sulfonsäure weiterge kuppelt.
Nach beendeter Kupplung wird der erhaltene Disazofarbstoff aasgesalzen, abge- nutscht, in 2000 Teilen kochendem Wasser gelöst und die Lösung unter Zusatz von 80 Teilen Ameisensäure und einer Chromformiat- lösung entsprechend 30,4 Teilen Cr20s wäh rend 15 Stunden unter Rückfluss gekocht. Die neue Chromverbindung wird durch Ein dampfen der Lösung in fester Form gewonnen.
Der neue, chrombaltige Farbstoff bildet, wenn getrocknet, ein graues Pulver, löst sich in Wasser mit graublauer Farbe; in konzen trierter Schwefelsäure mit dunkelvioletter Farbe und liefert im Chromdruck auf Baum wolle; Kunstseide aus regenerierter Zellulose oder auf Naturseide grünstichig graue Töne, die sich durch gute Echtheiten, insbesondere durch eine gute Wasch- und Lichtechtbeit, auszeichnen.
Additional patent to main patent no. 202856. Process for the production of a new, metal-containing stain dye. It has been found that a new, chromium-containing stain dye is obtained,
if one molecule of 2-amino-5-oxynaphthalene-7-sulfonic acid first in weakly acidic medium with a molecule of dianotized 2-amino-1-oxybenzene-6-carboxylic acid-4-sulfonic acid and then in weakly alkaline medium with one molecule of dianotized 1-oxy-2-amino-4-nitrobenzene-6-sulfonic acid is coupled and the disazo dye obtained is treated with a chromabending substance.
<I> Example: </I> 23.3 parts of 2-amino-1-oxybenzene-6-carboxylic acid-4-sulfonic acid are dianotized in the usual way and in acetic acid solution to 23.9 parts of 2-amino-5- oxynapbthalene-7-sulfonic acid coupled. The monoazo dye obtained is then coupled in an alkaline solution with the diazo compound from 23.4 parts of 1-oxy-2-amino-4-nitrobenzene-6-sulfonic acid.
After the coupling is complete, the disazo dye obtained is washed with ash salt, filtered off with suction, dissolved in 2000 parts of boiling water and the solution is refluxed for 15 hours with the addition of 80 parts of formic acid and a chromium formate solution corresponding to 30.4 parts of Cr20s. The new chromium compound is obtained in solid form by evaporating the solution.
The new chromium-containing dye forms a gray powder when dried, and dissolves in water with a gray-blue color; in concentrated sulfuric acid with a dark purple color and delivers in chrome print on cotton; Artificial silk made from regenerated cellulose or greenish gray tones on natural silk, which are characterized by good fastness properties, in particular good washing and lightfastness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE205812X | 1936-05-28 | ||
CH202856T | 1937-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH205812A true CH205812A (en) | 1939-06-30 |
Family
ID=25723859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH205812D CH205812A (en) | 1936-05-28 | 1937-05-20 | Process for the production of a new, metal-containing stain dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH205812A (en) |
-
1937
- 1937-05-20 CH CH205812D patent/CH205812A/en unknown
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