CH261058A - Process for the preparation of a polyazo dye. - Google Patents
Process for the preparation of a polyazo dye.Info
- Publication number
- CH261058A CH261058A CH261058DA CH261058A CH 261058 A CH261058 A CH 261058A CH 261058D A CH261058D A CH 261058DA CH 261058 A CH261058 A CH 261058A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- parts
- preparation
- polyazo dye
- tetrazotized
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- -1 polyazo Polymers 0.000 title claims description 3
- QSNSCYSYFYORTR-UHFFFAOYSA-N 4-chloroaniline Chemical compound NC1=CC=C(Cl)C=C1 QSNSCYSYFYORTR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003518 caustics Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- JRBJSXQPQWSCCF-UHFFFAOYSA-N 3,3'-Dimethoxybenzidine Chemical compound C1=C(N)C(OC)=CC(C=2C=C(OC)C(N)=CC=2)=C1 JRBJSXQPQWSCCF-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 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
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 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
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/50—Tetrazo dyes
- C09B35/52—Tetrazo dyes of the type
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 257110. Verfahren zur Herstellung eines Polyazofarbatoffes. Es wurde gefunden, dass ein Polyazofarb- stoff hergestellt werden kann, wenn man 2 Mol 1,3-Dioxybenzol einerseits mit 1 Mol tetrazotiertem 3,3'-Dioxy-4,4'-diaminodiphenyl und anderseits mit 2 Mol diazotiertem 4-Chlor- anilin kuppelt.
Der neue Farbstoff stellt ein dunkles Pul ver dar, das sich in verdünnten Ätzalkalien mit bordeauxroter und in konzentrierter Schwefelsäure mit violetter Farbe löst. Er erzeugt auf Baumwolle nach dem ein- oder zweibadigen NachkupferLmgsverfahren echte braunviolette Töne.
3,3'-Dioxy-4,4'-diaminodiphenyl kann bei spielsweise durch Verseifen von Dianisidin mit Aluminiumchlorid erhalten werden und wird in üblicher Weise tetrazotiert.
Die Kupplung des 1,3-Dioxybenzols mit der genannten Tetrazoverbindung kann bei spielsweise zuerst vorgenommen werden und ist z. B. in ätzalkalischer Lösung in kurzer Zeit beendigt. Der erhaltene Farbstoff wird zweckmässig zuerst abgeschieden und hierauf in üblicher Weise, z. B. in ätzalkalischem Medium, mit dem tetrazotierten 4-Chloranilin vereinigt.
<I>Beispiel:</I> Eine aus 4,32 Teilen 3,3'-Dioxy-4,4'-di- aminodiphenyl, 10 Raumteilen 30%iger Salz säure und 200 Teilen Wasser mit 2,76 Teilen Natriumnitrit hergestellte Tetrazolösung wird mit einer Lösung von 4,5 Teilen 1,3-Dioxy- benzol und 12 Raumteilen 30%iger Natron lauge in 100 Teilen Wasser vereinigt, nach 15 Minuten mit konzentrierter Salzsäure kongosauer gestellt und der ausgeschiedene Farbstoff abfiltriert. Er wird mit 10 Raum teilen 30%Iger Natronlauge in 200 Teilen Wasser gelöst und bei 0 bis 5 mit der in üblicher Weise dargestellten Diazolösung aus 5,
1 Teilen 4-Chloranilin versetzt. Man rührt während 2 Stunden bei 0 bis 5 , hierauf 20 Stunden lang bei gewöhnlicher Temperatur. Durch Zusatz von Kochsalz wird der Farb stoff abgeschieden, hierauf abfiltriert und ge trocknet.
Additional patent to main patent No. 257110. Process for the production of a polyazo-carbate. It has been found that a polyazo dye can be produced if 2 moles of 1,3-dioxybenzene are mixed on the one hand with 1 mole of tetrazotized 3,3'-dioxy-4,4'-diaminodiphenyl and on the other hand with 2 moles of diazotized 4-chloro aniline couples.
The new dye is a dark powder that dissolves in dilute caustic alkalis with a burgundy red color and in concentrated sulfuric acid with a purple color. It produces real brown-violet tones on cotton using the one- or two-bath post-copper process.
3,3'-Dioxy-4,4'-diaminodiphenyl can be obtained, for example, by saponifying dianisidine with aluminum chloride and is tetrazotized in the usual way.
The coupling of 1,3-dioxybenzene with said tetrazo compound can be carried out first with example and is, for. B. terminated in a caustic solution in a short time. The dye obtained is expediently deposited first and then in the usual way, e.g. B. in an alkaline medium, combined with the tetrazotized 4-chloroaniline.
<I> Example: </I> A tetrazo solution made from 4.32 parts of 3,3'-dioxy-4,4'-di-aminodiphenyl, 10 parts by volume of 30% hydrochloric acid and 200 parts of water with 2.76 parts of sodium nitrite is combined with a solution of 4.5 parts of 1,3-dioxybenzene and 12 parts by volume of 30% strength sodium hydroxide solution in 100 parts of water, made Congo acidic with concentrated hydrochloric acid after 15 minutes and the precipitated dye is filtered off. It is dissolved with 10 space parts 30% Iger sodium hydroxide solution in 200 parts of water and at 0 to 5 with the diazo solution prepared in the usual way from 5,
1 part of 4-chloroaniline was added. The mixture is stirred for 2 hours at 0 to 5, then for 20 hours at ordinary temperature. The dye is deposited by adding sodium chloride, then filtered off and dried.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH261058T | 1941-02-18 | ||
| CH257110T | 1942-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH261058A true CH261058A (en) | 1949-04-15 |
Family
ID=25730024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH261058D CH261058A (en) | 1941-02-18 | 1941-02-18 | Process for the preparation of a polyazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH261058A (en) |
-
1941
- 1941-02-18 CH CH261058D patent/CH261058A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH261058A (en) | Process for the preparation of a polyazo dye. | |
| CH232507A (en) | Process for the preparation of a disazo dye. | |
| CH232510A (en) | Process for the preparation of a disazo dye. | |
| CH261056A (en) | Process for the preparation of a polyazo dye. | |
| CH261057A (en) | Process for the preparation of a polyazo dye. | |
| CH239338A (en) | Process for the preparation of an azo dye. | |
| CH239324A (en) | Process for the preparation of a disazo dye. | |
| CH239330A (en) | Process for the preparation of a disazo dye. | |
| CH211012A (en) | Process for the preparation of a trisazo dye. | |
| CH252280A (en) | Process for the preparation of an azo dye. | |
| CH239327A (en) | Process for the preparation of a disazo dye. | |
| CH239332A (en) | Process for the preparation of a disazo dye. | |
| CH258758A (en) | Process for the preparation of an azo dye. | |
| CH239328A (en) | Process for the preparation of a disazo dye. | |
| CH252277A (en) | Process for the preparation of an azo dye. | |
| CH239337A (en) | Process for the preparation of an azo dye. | |
| CH239329A (en) | Process for the preparation of a disazo dye. | |
| CH239326A (en) | Process for the preparation of a disazo dye. | |
| CH290495A (en) | Process for the preparation of an azo dye. | |
| CH239325A (en) | Process for the preparation of a disazo dye. | |
| CH292650A (en) | Process for the preparation of a trisazo dye. | |
| CH239339A (en) | Process for the preparation of an azo dye. | |
| CH211014A (en) | Process for the preparation of a trisazo dye. | |
| CH252282A (en) | Process for the preparation of an azo dye. | |
| CH227496A (en) | Process for the production of a new azo dye. |