DE561440C - Process for the preparation of azo dyes - Google Patents
Process for the preparation of azo dyesInfo
- Publication number
- DE561440C DE561440C DEI41380D DEI0041380D DE561440C DE 561440 C DE561440 C DE 561440C DE I41380 D DEI41380 D DE I41380D DE I0041380 D DEI0041380 D DE I0041380D DE 561440 C DE561440 C DE 561440C
- Authority
- DE
- Germany
- Prior art keywords
- azo dyes
- preparation
- oxy
- brown
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung von Azofarbstoffen Es wurde gefunden, daB man zu wertvollen wasserunlöslichen Azofarbstoffen dadurch gelangt, daB man die Diazoverbindungen von aromatischen oder heterocyclischen Aminen oder ihren Derivaten mit Oxynaphthindolen, die in 2- und bzw. oder 3-Stellung durch Kohlenwasserstoffreste substituiert sind, für sich oder auf der Faser kuppelt und dabei die Komponenten derart wählt, daB sie keine wasserlöslich machenden Gruppen enthalten.Process for the preparation of azo dyes It has been found that valuable water-insoluble azo dyes can be obtained by using the Diazo compounds of aromatic or heterocyclic amines or their derivatives with oxynaphthindoles, which are in the 2- and or or 3-position by hydrocarbon radicals are substituted, by itself or on the fiber, and thereby the components chosen in such a way that they do not contain any water-solubilizing groups.
Man erhält auf diese Weise Farbstoffe von wertvollen Nuancen, die, auf der Faser hergestellt, bemerkenswerte Echtheitseigenschaften besitzen.In this way, dyes of valuable nuances are obtained which, made on the fiber, possess remarkable fastness properties.
Die Oxynaphthindole können z. B. aus den entsprechenden Naphthindolsulfonsäuren durch Alkalischmelze hergestellt werden.The oxynaphthindoles can, for. B. from the corresponding naphthindolesulfonic acids can be produced by alkali melting.
Beispiel i Das gut ausgekochte und getrocknete Baumwollgarn wird mit einer Lösung von 5 g 8-Oxy-2-phenyinaphthindol, io ccm Natronlauge (34' BO) und io ccm Türkischrotöl im Liter imprägniert, ausgewunden und, ohne zu trock= nen, in einer mit Natriumacetat abgestumpften Diazolösung, die 47 g 2 # 5-Dichloranilin im Liter entspricht, entwickelt, gespült und geseift. Man erhält auf diese Weise ein schönes, echtes, rotstichiges Braun.Example i The well-boiled and dried cotton yarn is mixed with a solution of 5 g of 8-oxy-2-phenyinaphthindole, 10 ccm of sodium hydroxide solution (34 'BO) and 10 ccm Turkish red oil per liter, impregnated, wound and, without drying, in a diazo solution blunted with sodium acetate, the 47 g of 2 # 5-dichloroaniline corresponds in the liter, developed, rinsed and soaped. One gets in this way a beautiful, real, reddish brown.
Aus 8-Oxy-2-phenylnaphthindol erhält man mit diazotiertem:
Nachstehend werden nöch einige weitere Farbstoffe. nebst ihren Farbtönen angeführt, die wie oben auf der Faser hergestellt werden.Below are a few more dyes. along with their color tones which are made on the fiber as above.
Aus 8-Oxy-2 # 3-dimethyhzaphthindol erhält man mit diazotiertem:
Beispiel 3 Das gut ausgekochte und getrocknete Baumwollgarn wird mit einer Lösung von 5 g 7-Oxy-2 # 3-dimethylnaphthindol, I o ccm Natronlauge (34° Be) und io ccm Türkischrotöl im Liter imprägniert, ausgewunden und, ohne zu trocknen, in einer mit Natriumacetat abgestumpften Diazolösung, die 1,79 2 # 5-Dichloranilin im Liter entspricht, entwickelt, gespült und geseift. Man erhält auf diese Weise ein schönes dunkles Rotbraun.Example 3 The well-boiled and dried cotton yarn is with a solution of 5 g of 7-oxy-2 # 3-dimethylnaphthindole, 10 ccm of sodium hydroxide solution (34 ° Be) and 10 cc Turkish red oil per liter, impregnated, wound and, without drying, in a diazo solution blunted with sodium acetate, the 1.79 2 # 5-dichloroaniline corresponds in the liter, developed, rinsed and soaped. One gets in this way a beautiful dark red-brown.
Aus 7-Oxy-2-phenylnaphthindol erhält man mit diazotiertem 2-Chloranilin bzw. 4-Chlor-2-nitränilin bzw: 2-Methyl-5-chloranilin etwas gelbstichigere Nuancen.From 7-oxy-2-phenylnaphthindole, diazotized 2-chloroaniline is obtained or 4-chloro-2-nitraniline or: 2-methyl-5-chloroaniline slightly more yellowish nuances.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI41380D DE561440C (en) | 1931-04-26 | 1931-04-26 | Process for the preparation of azo dyes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI41380D DE561440C (en) | 1931-04-26 | 1931-04-26 | Process for the preparation of azo dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE561440C true DE561440C (en) | 1932-10-14 |
Family
ID=7190536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEI41380D Expired DE561440C (en) | 1931-04-26 | 1931-04-26 | Process for the preparation of azo dyes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE561440C (en) |
-
1931
- 1931-04-26 DE DEI41380D patent/DE561440C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE561440C (en) | Process for the preparation of azo dyes | |
DE551880C (en) | Process for the preparation of water-insoluble azo dyes | |
DE565340C (en) | Process for the preparation of azo dyes | |
DE533795C (en) | Process for the preparation of water-insoluble azo dyes | |
DE551881C (en) | Process for the preparation of water-insoluble azo dyes | |
DE590956C (en) | Process for the production of water-insoluble azo dyes | |
DE578065C (en) | Process for the production of water-insoluble azo dyes | |
DE556477C (en) | Process for the preparation of azo dyes | |
DE643081C (en) | Process for the production of azo dyes | |
DE734415C (en) | Process for the production of water-insoluble azo dyes on cellulose fibers | |
DE888290C (en) | Process for the preparation of monoazo dyes | |
DE588897C (en) | Process for the production of water-insoluble azo dyes | |
DE515230C (en) | Process for the preparation of water-insoluble azo dyes | |
DE539116C (en) | Process for the preparation of water-insoluble azo dyes | |
DE612072C (en) | Process for the production of water-insoluble azo dyes | |
DE479345C (en) | Process for producing real colors on the fiber | |
DE633266C (en) | Process for the preparation of o-oxyazo dyes | |
DE537127C (en) | Process for the preparation of disazo dyes | |
DE556476C (en) | Process for the preparation of azo dyes | |
DE551882C (en) | Process for the preparation of water-insoluble azo dyes | |
DE560798C (en) | Process for the production of insoluble azo dyes on the fiber | |
DE574964C (en) | Process for the preparation of water-insoluble azo dyes | |
DE430579C (en) | Process for the preparation of azo dyes | |
DE480814C (en) | Process for the production of real colors on the vegetable fiber | |
DE918635C (en) | Process for the production of real colors and prints |