AT146184B - Process for the preparation of insoluble azo dyes. - Google Patents
Process for the preparation of insoluble azo dyes.Info
- Publication number
- AT146184B AT146184B AT146184DA AT146184B AT 146184 B AT146184 B AT 146184B AT 146184D A AT146184D A AT 146184DA AT 146184 B AT146184 B AT 146184B
- Authority
- AT
- Austria
- Prior art keywords
- preparation
- azo dyes
- insoluble azo
- benzofluorenone
- group
- Prior art date
Links
- 239000000987 azo dye Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 3
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 150000002790 naphthalenes Chemical class 0.000 claims description 2
- -1 2-benzofluorenone diazo compounds Chemical class 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- KPHCRJCYHWMMBI-UHFFFAOYSA-N benzo[a]fluoren-2-one Chemical compound C=1C(C=CC2=CC=C3C=4C=CC=CC4C=C3C21)=O KPHCRJCYHWMMBI-UHFFFAOYSA-N 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- RJEMRACHOZYVGV-UHFFFAOYSA-N 4-[(4-chlorophenyl)diazenyl]-2-methoxy-5-methylaniline Chemical compound C1=C(N)C(OC)=CC(N=NC=2C=CC(Cl)=CC=2)=C1C RJEMRACHOZYVGV-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 150000008049 diazo compounds Chemical class 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000416162 Astragalus gummifer Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 229920001615 Tragacanth Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000000196 tragacanth Substances 0.000 description 1
- 229940116362 tragacanth Drugs 0.000 description 1
- 235000010487 tragacanth Nutrition 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Coloring (AREA)
Description
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Verfahren zur Herstellung von unlöslichen Azofarbstoffen.
Es wurde gefunden, dass man zu neuen und wertvollen wasserunlöslichen Azofarbstoffen gelangt, wenn man auf 3-0xy-l-2-benzofluorenone Diazoverbindungen der allgemeinen Formel -N=N-R-N ==N-OH einwirken lässt, in welcher Ei und R2 aromatische Kerne der Benzol-oder der Naphthalinreihe bedeuten und in welcher mindestens einer der beiden Kerne Rl und R2 durch eine Alkoxy-Gruppe in ortho-Stellung zu einer-N = N-Gruppe substituiert ist.
Die neuen Farbstoffe stellen schwarze Pigmente dar. Auf der Faser, insbesondere auf der pflanzlichen Faser erzeugt, färben sie diese in echten schwarzen Tönen, die sich durch sehr gute Echtheitseigenschaften, insbesondere durch gute Lichtechtheit auszeichnen.
Folgende Beispiele erläutern die Erfindung, ohne sie jedoch zu begrenzen.
Beispiel 1 : 27-6 Teile 4'-Chlor-4-amino-3-methoxy-6-methylazobenzol werden wie üblich diazotiert und in eine Lösung von 24-6 Teilen 3-0xy-1. 2-benzofluorenon, 30 Teilen 30% iger Natronlauge, 30 Teilen Soda und 2000 Teilen Wasser eingetragen. Der gebildete Farbstoff fällt sofort aus. Der schwarze Niederschlag wird filtriert und getrocknet.
Beispiel 2 : Baumwollgarn wird mit einer Grundierung imprägniert, die durch Lösen von 10 g 3-Oxy-l. 2-benzofluorenon in 300 cm3 heissem Wasser unter Zusatz von 18 cm3 30 % iger Natriumhydroxydlösung, 10 cm3 Türkischrotöl, Verdünnen des Ansatzes auf 11. und Zugabe von 15 g Kochsalz hergestellt worden ist, Hierauf'Windet'man ab und entwickelt in einer mit Natriumacetat abgestumpften Diazolösung, deren Gehalt 3 g diazotiertem 4'-Chlor-4-amino-3-methoxy-6-methyl-azobenzol pro Liter entspricht. Es entsteht ein sattes Schwarz von sehr guten Echtheitseigenschaften, insbesondere von guter Lichtechtheit. Ähnliehe sehwarze Töne erhält man mit andern Vertretern der in der Einleitung gekennzeichneten Diazoverbindungen wie z.
B. mit dem 4-Diazonaphthalin-1.1'-azo-2'-äthoxybenzol, dem
EMI1.1
Statt Natriumacetat kann man auch andere säurebindende Mittel zugeben, wie z. B. Natriumformiat, Alkaliphosphate, Pyridin usw.
Beispiel 3 : Der zu bedruckende Stoff wird mit einer alkalischen Lösung, die im Liter 16 g des 3-0xy-6-chlor-1. 2-benzofluorenons enthält, foulardiert. Nach dem Trocknen wird mit einer Druckfarbe die 16 g diazotiertes 4-Amino-2. 5-diäthoxy-3'-methyl-1.1'-azobenzol im Kilogramm enthält behandelt.
Die reine schwarze Färbung entwickelt sich rasch und ist sehr echt. Sie ist weiss ätzbar.
EMI1.2
traganthverdickung zu einer feinen Druckpaste vermischt. Der Stoff wird mit dieser Druckfarbe bedruckt, getrocknet und schnell durch eine 2%ige wässerige Salzsäurelösung passiert, abgequetscht und kurze Zeit hierauf mit einer 3-5% eigen wässerigen Natriumcarbonat- oder Natriumbicarbonatlösung behandelt, wobei sich sehr rasch eine echte, tiefe schwarze Färbung entwickelt. Man spült und behandelt in einem kochenden Seifenbade.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Process for the preparation of insoluble azo dyes.
It has been found that new and valuable water-insoluble azo dyes are obtained if 3-oxy-l-2-benzofluorenone diazo compounds of the general formula -N = NRN == N-OH are allowed to act, in which egg and R2 are aromatic nuclei Benzene or naphthalene series and in which at least one of the two nuclei R1 and R2 is substituted by an alkoxy group in the ortho position to an -N = N group.
The new dyes are black pigments. Produced on the fiber, in particular on the vegetable fiber, they dye it in genuine black tones which are distinguished by very good fastness properties, in particular good lightfastness.
The following examples explain the invention without, however, limiting it.
Example 1: 27-6 parts of 4'-chloro-4-amino-3-methoxy-6-methylazobenzene are diazotized as usual and converted into a solution of 24-6 parts of 3-0xy-1. Entered 2-benzofluorenone, 30 parts of 30% sodium hydroxide solution, 30 parts of soda and 2000 parts of water. The dye formed precipitates immediately. The black precipitate is filtered and dried.
Example 2: Cotton yarn is impregnated with a primer which, by dissolving 10 g of 3-Oxy-l. 2-benzofluorenone in 300 cm3 of hot water with the addition of 18 cm3 of 30% sodium hydroxide solution, 10 cm3 of Turkish red oil, dilution of the batch to 11. and addition of 15 g of table salt has been prepared truncated diazo solution, the content of which corresponds to 3 g of diazotized 4'-chloro-4-amino-3-methoxy-6-methyl-azobenzene per liter. The result is a deep black with very good fastness properties, in particular good lightfastness. Similar blackish tones are obtained with other representatives of the diazo compounds identified in the introduction, e.g.
B. with the 4-diazonaphthalene-1.1'-azo-2'-ethoxybenzene, the
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Instead of sodium acetate you can also add other acid-binding agents, such as. B. sodium formate, alkali phosphates, pyridine, etc.
Example 3: The material to be printed is treated with an alkaline solution containing 16 g of 3-oxy-6-chloro-1 per liter. Contains 2-benzofluorenone, padded. After drying, the 16 g of diazotized 4-amino-2. 5-diethoxy-3'-methyl-1.1'-azobenzene in the kilogram contains treated.
The pure black color develops quickly and is very real. It can be etched white.
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tragacanth thickening mixed into a fine printing paste. The fabric is printed with this printing ink, dried and quickly passed through a 2% aqueous hydrochloric acid solution, squeezed off and then treated for a short time with a 3-5% aqueous sodium carbonate or sodium bicarbonate solution, whereby a real, deep black color develops very quickly . You rinse and treat in a boiling soap bath.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH146184T | 1934-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT146184B true AT146184B (en) | 1936-06-10 |
Family
ID=34230824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT146184D AT146184B (en) | 1934-10-13 | 1935-09-04 | Process for the preparation of insoluble azo dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT146184B (en) |
-
1935
- 1935-09-04 AT AT146184D patent/AT146184B/en active
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