AT59041B - Process for the preparation of vat dyes of the indigo series. - Google Patents
Process for the preparation of vat dyes of the indigo series.Info
- Publication number
- AT59041B AT59041B AT59041DA AT59041B AT 59041 B AT59041 B AT 59041B AT 59041D A AT59041D A AT 59041DA AT 59041 B AT59041 B AT 59041B
- Authority
- AT
- Austria
- Prior art keywords
- vat dyes
- preparation
- indigo series
- indigo
- yellow
- Prior art date
Links
- 239000000984 vat dye Substances 0.000 title claims description 6
- 235000000177 Indigofera tinctoria Nutrition 0.000 title claims description 5
- 229940097275 indigo Drugs 0.000 title claims description 5
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000000975 dye Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- -1 aromatic acid halides Chemical class 0.000 description 1
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical class OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Coloring (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung von Küpenfarbstoffen der Indigoreihe.
Im Patente Nr. 39034 sind halogenhaltige Küpenfarbstoffe beschrieben worden, welche durch Halogenierung der bei Einwirkung von aromatischen Säurehalogeniden auf Indigo entstehenden Kohdensationsprodukte (vgl. französische Patentschrift Nr. 434828) erhalten werden. Es wurde nun gefunden, dass diese halogenhaltigen Küpenfarbstoffe, welche animalische und vegetabilische Fasern aus alkalischer Küpe in rein grünstichig gelben Nuancen anfärben, in neue Küpenfarbstoffe von rötlichgelber bis orangegelber Nuance übergeführt werden können, wenn man sie einer Behandlung mit Reduktionsmitteln, insbesondere Sulfhydraten, Hydrosulfiten oder ähnlich wirkenden Substanzen, vorzugsweise in Gegenwart eines mit Wasser mischbaren organischen Mediums, unterwirft. beispiel1.
2 () Teile des durch Kondensation von Indigo mit Benzoylchlorid und nachträgliche Bromiurung erhaltenen Farbstoffes werden in fein pulverisiertem Zustand in 200 Teilen Alkohol suspendiert, unter Kücknuss zum Kochen erhitzt und hierauf 60 Teile Xatrium-
EMI1.1
1 bis 2 Stunden, filtriert sodann in 50 bis 600 C warmes Wasser hinein und filtriert den hiebei sich ausscheidenden Farbstoff, nachdem dessen Abscheidung durch Einleiten von Luft eventuell vervollständigt wurde, ab. Getrocknet ildet der neue Farbstoff ein tief orange gefärbtes Pulver, das in kaltem Alkohol kaum, in heissem schwer löslich ist. In kaltem Nitrobenzol löst er sich ziemlich leicht mit gelbbrauner Farbe.
Seine Lösung in konzentrierter Schwefelsäure ist intensiv rotbraun gefärbt und liefert beim Verdünnen mit Wasser eine gelborange gefärbte Ausscheidung. Oleum löst mit dunkelbrauner Farbe. wobei teilweise Sulfierung eintritt, indem die mit Eiswasser verdünnte Lösung stark gelb
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unterwürfen, wobei die Nuance etwas reiner und lebhafter wird. Derselbe Effekt kann auch dllrch ('hloren bewirkt werden.
B e i s p i e l 2.
Man erhitzt 10 Teile des in Beispiel 1 genannten brombaltigen Kondensations-
EMI1.3
Wasser wahrend 5 bis 6 Stunden zum Kochen. Dann lässt man erkalten, filtriert, wascht den Ftlterruckstand mit Alkohol und hierauf mit Wasser und trocknet. Der so erhaltene Farbstoff tdct ein orangebraunes Pulver, das aus alkalischer Küpe die Textilfasern in
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und Natriumhy drosulfit durch andere, ahnlich wirkende Substanzen ersetzen.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of vat dyes of the indigo series.
In patent no. 39034 halogen-containing vat dyes have been described which are obtained by halogenation of the carbon dioxide (cf. French patent no. 434828) formed on the action of aromatic acid halides on indigo. It has now been found that these halogen-containing vat dyes, which dye animal and vegetable fibers from alkaline vat in purely greenish yellow shades, can be converted into new vat dyes of reddish yellow to orange-yellow shade if they are treated with reducing agents, in particular sulfhydrates, hydrosulfites or substances with a similar effect, preferably in the presence of a water-miscible organic medium. example 1.
2 () Parts of the dye obtained by condensation of indigo with benzoyl chloride and subsequent bromination are suspended in a finely powdered state in 200 parts of alcohol, heated to the boil under the keg and then 60 parts of sodium
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1 to 2 hours, then filtered into 50 to 600 C warm water and filtered off the dyestuff that separated out after its separation was possibly completed by the introduction of air. When dried, the new dye forms a deep orange colored powder that is hardly soluble in cold alcohol and poorly soluble in hot alcohol. In cold nitrobenzene, it dissolves fairly easily with a yellow-brown color.
Its solution in concentrated sulfuric acid is intensely reddish-brown in color and, when diluted with water, produces a yellow-orange colored precipitate. Oleum dissolves with dark brown color. partial sulphonation occurs, making the solution diluted with ice water very yellow
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subject, whereby the nuance becomes a little more pure and lively. The same effect can also be produced in this way.
Example 2.
10 parts of the bromine-containing condensation agent mentioned in Example 1 are heated
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Boil water for 5 to 6 hours. Then it is left to cool, filtered, the residue on the filter is washed with alcohol and then with water and dried. The dye thus obtained is an orange-brown powder which, from an alkaline vat, converts the textile fibers into
EMI1.4
and replace sodium hydrosulphite with other substances with a similar effect.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT59041T | 1912-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT59041B true AT59041B (en) | 1913-05-10 |
Family
ID=3580824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT59041D AT59041B (en) | 1912-04-20 | 1912-04-20 | Process for the preparation of vat dyes of the indigo series. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT59041B (en) |
-
1912
- 1912-04-20 AT AT59041D patent/AT59041B/en active
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