CH517813A - Red water-insol azo dyes for cellulose - esters and/or linear synthetic polyesters - Google Patents
Red water-insol azo dyes for cellulose - esters and/or linear synthetic polyestersInfo
- Publication number
- CH517813A CH517813A CH1322069A CH1322069A CH517813A CH 517813 A CH517813 A CH 517813A CH 1322069 A CH1322069 A CH 1322069A CH 1322069 A CH1322069 A CH 1322069A CH 517813 A CH517813 A CH 517813A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dyes
- esters
- cellulose
- insol
- red water
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
New azo-dyestuffs of gen. formula:- (where R is C1-4 alkyl and X is Cl or Br). Prepared by reacting diazo cpds. of aromatic amines, e.g. 1-amino-2-carbomethoxy-4-nitro-6-bromo-or chlorobenzene, with N-beta-phenylethyl-N-beta cyanethyl aniline. Synthetic linear polyesters and or cellulose esters are dyed at elevated temps. and the red dyeings both on this polyester and on cellulose esters opt. admixed with cotton fibres, are very fast to light and heat-fixing.
Description
Verfahren zur Herstellung neuer, wasserunlöslicher Azofarbstoffe Die Erfindung betrifft ein Verfahren zur Herstellung neuer wasserunlöslicher Azofarbstoffe der Formel
EMI1.1
in der R einen Alkylrest mit 1 bis 4 C-Atomen und X ein Chlor- oder Bromatom bedeuten, das dadurch gekennzeichnet ist, dass Diazoverbindungen von Aminen der Formel
EMI1.2
mit N-ss-Phenyläthyl-N-ss-cyanäthyl-anilin umsetzt.
Für R sind im einzelnen Äthyl-, n- oder iso-Propyl, noder iso-Butyl und insbesondere Methyl zu nennen. Vertreter dieser Farbstoffe sind z. B.:
EMI1.3
Die neuen Farbstoffe eignen sich insbesondere zum Färben von Fasern aus Polyestern, wie Polyäthylenglykolterephthalat, vorzugsweise nach dem Hochtemperaturverfahren (HT-Verfahren). Sie eignen sich zudem für das Färben von
Cellulosetriacet Die genannten Fasern können auch in Mi schung mit beispielsweise Baumwolle vorliegen. Das Material kann z. B. als Textil oder textile Gebilde vorliegen, wie Fasern, Fäden, Flocken, Gewebe, Gewirke.
Man erhält echte rote, insbesondere hoch licht- und thermofixierechte Färbungen.
EMI2.1
Angaben über Teile und Prozente in den Beispielen beziehen sich auf das Gewicht.
Beispiel 1
In eine Mischung aus 55 Teilen 85 /eiger Schwefelsäure und 16,5 Teilen Nitrosylschwefelsäure (N203-Gehalt 11,5 /n) trägt man unter Rühren bei 0 bis 5 "C 13,75 Teile l-Amino-2-carbomethoxy-4nitro-hbrombenzol ein. Nach 4
EMI2.2
Stunden lässt man zur Diazolösung eine Lösung von 14
Teilen Nss-cyanäthyl-anilin in 50 Teilen Eisessig zufliessen.
dann giesst man nach 30 Minuten die Reaktionslösung in ein Gemisch aus 500 Teilen Eis und 500 Wasser. Nach Sstündigem Nachrühren wird der ausgefallene Farbstoff (21 Teile) mit Wasser neutral gewaschen und bei 50 C unter vermindertem Druck getrocknet.
Der Farbstoff IV färbt Polyesterfasern brillant rot, wobei die Färbung ausgezeichnete Licht- und Thermofixierechtheit neben allgemein guten Echtheiten aufweist.
Mit den in der folgenden Tabelle angegebenen Diazokomponenten und N-ss-cyanäthyl-anilin: als Kupplungs
EMI2.3
komponente erhält man analog der angegebenen Vor schrift weitere Farbstoffe. die auf Polyesterfasern eben falls sehr echte rote Färbungen ergeben.
13cispiel Diazokomponente
EMI2.4
EMI2.5
Process for the production of new, water-insoluble azo dyes The invention relates to a process for the production of new water-insoluble azo dyes of the formula
EMI1.1
in which R is an alkyl radical having 1 to 4 carbon atoms and X is a chlorine or bromine atom, which is characterized in that diazo compounds of amines of the formula
EMI1.2
with N-ß-phenylethyl-N-ß-cyanoethyl-aniline.
For R, ethyl, n- or iso-propyl, n or iso-butyl and, in particular, methyl are to be mentioned in detail. Representatives of these dyes are z. B .:
EMI1.3
The new dyes are particularly suitable for dyeing fibers made of polyesters, such as polyethylene glycol terephthalate, preferably by the high-temperature process (HT process). They are also suitable for dyeing
Cellulosetriacet The fibers mentioned can also be mixed with cotton, for example. The material can e.g. B. be present as a textile or textile structure, such as fibers, threads, flakes, woven fabrics, knitted fabrics.
Real red, in particular highly lightfast and heat-setting fast, dyeings are obtained.
EMI2.1
Parts and percentages in the examples are based on weight.
example 1
13.75 parts of 1-amino-2-carbomethoxy-4nitro- bromobenzene. After 4
EMI2.2
A solution of 14 is allowed to add to the diazo solution for hours
Parts of Nss-cyanoethyl-aniline in 50 parts of glacial acetic acid flow in.
then, after 30 minutes, the reaction solution is poured into a mixture of 500 parts of ice and 500 parts of water. After stirring for an additional hour, the precipitated dye (21 parts) is washed neutral with water and dried at 50 ° C. under reduced pressure.
The dye IV dyes polyester fibers brilliant red, the dyeing having excellent light fastness and heat-setting fastness in addition to generally good fastness properties.
With the diazo components and N-ss-cyanoethyl aniline given in the table below: as a coupling
EMI2.3
component, further dyes are obtained analogously to the specified before writing. which also produce very real red colorations on polyester fibers.
13c example diazo component
EMI2.4
EMI2.5
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1322069A CH517813A (en) | 1969-09-01 | 1969-09-01 | Red water-insol azo dyes for cellulose - esters and/or linear synthetic polyesters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1322069A CH517813A (en) | 1969-09-01 | 1969-09-01 | Red water-insol azo dyes for cellulose - esters and/or linear synthetic polyesters |
Publications (1)
Publication Number | Publication Date |
---|---|
CH517813A true CH517813A (en) | 1972-01-15 |
Family
ID=4390462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1322069A CH517813A (en) | 1969-09-01 | 1969-09-01 | Red water-insol azo dyes for cellulose - esters and/or linear synthetic polyesters |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH517813A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2232636A1 (en) * | 1973-06-08 | 1975-01-03 | Hoechst Ag |
-
1969
- 1969-09-01 CH CH1322069A patent/CH517813A/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2232636A1 (en) * | 1973-06-08 | 1975-01-03 | Hoechst Ag |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |