CH328657A - Process for the preparation of chromium-containing monoazo dyes - Google Patents
Process for the preparation of chromium-containing monoazo dyesInfo
- Publication number
- CH328657A CH328657A CH328657DA CH328657A CH 328657 A CH328657 A CH 328657A CH 328657D A CH328657D A CH 328657DA CH 328657 A CH328657 A CH 328657A
- Authority
- CH
- Switzerland
- Prior art keywords
- chromium
- dyes
- sep
- preparation
- monoazo dyes
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 13
- 229910052804 chromium Inorganic materials 0.000 title claims description 12
- 239000011651 chromium Substances 0.000 title claims description 11
- 239000000975 dye Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 5
- NYGZLYXAPMMJTE-UHFFFAOYSA-M metanil yellow Chemical group [Na+].[O-]S(=O)(=O)C1=CC=CC(N=NC=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 NYGZLYXAPMMJTE-UHFFFAOYSA-M 0.000 title description 3
- 239000002253 acid Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- 239000000987 azo dye Substances 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- ZRHUHDUEXWHZMA-UHFFFAOYSA-N 1,4-dihydropyrazol-5-one Chemical compound O=C1CC=NN1 ZRHUHDUEXWHZMA-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- -1 amino compound Chemical class 0.000 description 2
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- NHIRTPYVBADBSR-UHFFFAOYSA-J [Na+].[Cr+3].Oc1ccccc1C([O-])=O.Oc1ccccc1C([O-])=O.Oc1ccccc1C([O-])=O.Oc1ccccc1C([O-])=O Chemical compound [Na+].[Cr+3].Oc1ccccc1C([O-])=O.Oc1ccccc1C([O-])=O.Oc1ccccc1C([O-])=O.Oc1ccccc1C([O-])=O NHIRTPYVBADBSR-UHFFFAOYSA-J 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- AFOSIXZFDONLBT-UHFFFAOYSA-N divinyl sulfone Chemical group C=CS(=O)(=O)C=C AFOSIXZFDONLBT-UHFFFAOYSA-N 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
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
- C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung von ehromhaltigen Monoazofarbstoffen Es wurde gefunden, dass man wertvolle neue chromhaltige Monoazofarbstoffe erhält, wenn man kernsulfonsäuregruppenfreie o,o'- Dioxy-azofarbstoffe, welche die Gruppe -S02 CH=CH2 ein- oder zweimal enthalten, durch Behan deln mit Chromkomplexverbindungen von aromatischen o-Oxycarbonsäuren (deutsche Patentschrift Nr. 741462),
insbesondere Chrom. s < ilieylsäure oder ihren Salzen, in neutralem oder alkalischem Medium in ihre komplexen Chromverbindungen überführt. In den fer tigen chromhaltigen Farbstoffen beträgt dae Verhältnis von Parbstoffmolekül zu Chrom atom 2:1 bis 1:1, vorzugsweise 2:1.
Die Herstellung der Diazo- und Azokom- ponenten kann nach üblichen Verfahren er folgen, indem man eine diazotierbare Amino- verbindung oder eine Azokomponente mit der Gruppe -S02-CH2-CH2 01T mit.
starker Schwefelsäure umsetzt, wobei saure Schwefelsäureester entstehen. Durch Diazotieren und anschliessende Kupplung kann dann der Farbstoff mit der Gruppe -S02-CH2 CH2 OS03H gebildet werden. Man kann aber auch Azo- iarbstoffe, welche die Gruppe -S02 CH2 CH2 OH ein- oder mehrmals enthalten, durch Um setzung mit starker Schwefelsäure in die sauren Schwefelsäureester überführen.
Durch Behandeln mit alkalisch wirkenden Mitteln wird aus der Oxäthy1sulfonsehwefelsäureester- Gruppe die Vinylsillfon-Gruppe gebildet.
Die neuen Farbstoffe sind hervorragend geeignet zrun Färben von Wolle und Poly- amidfasern. Infolge ihres guten Ziehvermö gens aus neutralem oder schwach saurem Bade sind sie den bekannten, im Kern'Sulfon- säuregruppen enthaltenden Chromkomplex farbstoffen überlegen, die aus stark saurem Bade gefärbt werden müssen, wobei das Faser material leidet.
Die mit den Chromkomplex verbindungen erhaltenen Färbungen zeichnen sich durch hervorragende Nassechtheiten aus, da sich beim Färben die --iS02-CH=CH2- Gruppe mit dem Wol'lkeratin verbindet, <I>Beispiel</I> 199 Gewichtsteile 1- Amino-2-oxybenzol-5- vinylsulfon werden wie üblich diazotiert und mit 210- Gewichtsteilen 1-(3'-Chlorphenyl)
-3- methyl=5-pyr azolon in Gegenwart von Natrium- carbonatlösiurg gekuppelt. Der entstandene Farbstoff wird dann.
mit WO Volumtei!len einer NatriumchromsalicylatlösLuig, die 28 Ge wichtsteile Chrom enthält, so 1!ange zum Sieden erhitzt, bis die C'hromiening beendet ist. Der Farbstoff wird mit Kochsalz ausgefällt, abge saugt und getrocknet. Er stellt ein braunrotes Pulver dar.
Wolle -und Polyamidfa-ern werden aus neutralem oder schwach saurem Bade in orangeroten Tönen von sehr guten Nassecht- heiten und guter bis sehr guter Lichtechtheit gefärbt.
Die folgende Zitsammenstellriing enthält eine Anzahl von weiteren nach vorliegendem Verfahren verwendbaren Azofarbstoffen sowie die Farbtöne der daraus erhältlichen Chrom komplexverbindungen, die ebenfalls gute Echt heitseigenschaften besitzen:
EMI0002.0017
\ <SEP> Farbton <SEP> des
<tb> Diazokomponente <SEP> Azokomponente <SEP> Chromkomplexes
<tb> <U>auf <SEP> Wolle</U>
<tb> 1-Amino-'2-oxy-3-brombenzol5-vinylsulfon <SEP> 1-Acetamino-7-oxynaphthalin <SEP> Grau
<tb> 1-Amino=2-oxybenzol=5-vinylsul,fon <SEP> 1-Phenyl-3-inethyl-#5-pyrazolon <SEP> Orange
<tb> 1-Amino-2-oxybenzol-5-vinylsullfoii <SEP> 1=Carbäthoxyamino-7-oxynaphthalin <SEP> Grau
Process for the preparation of Ehrom-containing monoazo dyes It has been found that valuable new chromium-containing monoazo dyes are obtained if o, o'-dioxy-azo dyes which are free of nucleus sulfonic acid groups and which contain the group -S02 CH = CH2 once or twice, by treating with chromium complex compounds of aromatic o-oxycarboxylic acids (German Patent No. 741462),
especially chrome. Sillyic acid or its salts are converted into their complex chromium compounds in a neutral or alkaline medium. In the finished chromium-containing dyes, the ratio of pigment molecule to chromium atom is 2: 1 to 1: 1, preferably 2: 1.
The diazo and azo components can be prepared by customary processes by adding a diazotizable amino compound or an azo component with the -SO2-CH2-CH2 01T group.
strong sulfuric acid converts, whereby acidic sulfuric acid esters are formed. The dye with the group -S02-CH2 CH2 OS03H can then be formed by diazotization and subsequent coupling. However, azo dyes which contain the group -SO2 CH2 CH2 OH one or more times can also be converted into the acidic sulfuric acid ester by reaction with strong sulfuric acid.
Treatment with alkaline agents results in the formation of the vinylsulfon group from the oxyethylsulfonic acid ester group.
The new dyes are ideally suited for dyeing wool and polyamide fibers. As a result of their good drawability from neutral or weakly acidic baths, they are superior to the known chromium complex dyes containing sulfonic acid groups in the nucleus, which have to be dyed from strongly acidic baths, whereby the fiber material suffers.
The dyeings obtained with the chromium complex compounds are characterized by excellent wet fastness properties, since the --iS02-CH = CH2- group combines with the Wol'lkeratin during dyeing, <I> Example </I> 199 parts by weight of 1- amino-2 -oxybenzene-5-vinylsulfone are diazotized as usual and with 210 parts by weight of 1- (3'-chlorophenyl)
-3- methyl = 5-pyr azolone coupled in the presence of sodium carbonate solution. The resulting dye is then.
with WO parts by volume of a sodium chromium salicylate solution containing 28 parts by weight of chromium, heated to the boil until the chromiuming has ended. The dye is precipitated with sodium chloride, filtered off with suction and dried. It represents a brownish red powder.
Wool and polyamide fibers are dyed from a neutral or slightly acidic bath in orange-red shades with very good wet fastness properties and good to very good light fastness.
The following compilation contains a number of other azo dyes that can be used according to the present process, as well as the color shades of the chromium complex compounds obtained from them, which also have good fastness properties:
EMI0002.0017
\ <SEP> Hue <SEP> des
<tb> diazo component <SEP> azo component <SEP> chromium complex
<tb> <U> on <SEP> wool </U>
<tb> 1-Amino-'2-oxy-3-bromobenzene5-vinylsulfone <SEP> 1-Acetamino-7-oxynaphthalene <SEP> Gray
<tb> 1-Amino = 2-oxybenzene = 5-vinylsul, fon <SEP> 1-phenyl-3-ynethyl- # 5-pyrazolone <SEP> orange
<tb> 1-Amino-2-oxybenzene-5-vinylsullfoii <SEP> 1 = Carbethoxyamino-7-oxynaphthalene <SEP> gray
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE328657X | 1953-03-11 | ||
| CH327283T | 1954-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH328657A true CH328657A (en) | 1958-03-15 |
Family
ID=25736510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH328657D CH328657A (en) | 1953-03-11 | 1954-03-09 | Process for the preparation of chromium-containing monoazo dyes |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH328657A (en) |
-
1954
- 1954-03-09 CH CH328657D patent/CH328657A/en unknown
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