CH257017A - Process for the preparation of a new disazo dye. - Google Patents
Process for the preparation of a new disazo dye.Info
- Publication number
- CH257017A CH257017A CH257017DA CH257017A CH 257017 A CH257017 A CH 257017A CH 257017D A CH257017D A CH 257017DA CH 257017 A CH257017 A CH 257017A
- Authority
- CH
- Switzerland
- Prior art keywords
- blue
- parts
- new
- disazo dye
- dye
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 239000003518 caustics Substances 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 239000010949 copper Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 229910000029 sodium carbonate Inorganic materials 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000001879 copper 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
- 239000000706 filtrate Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension 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
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/02—Disazo dyes
- C09B35/039—Disazo dyes characterised by the tetrazo component
- C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
- C09B35/10—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type
- C09B35/16—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl from two coupling components of the same type from hydroxy-amines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpaten Nr. 229184. Verfahren zur Herstellung eines neuen Disazofarbstoffes. Es wurde gefunden, dass man einen neuen Disazofarbstoff erhält, wenn man tetrazo- tiertes 3,3'-Dioxy-4;4'-diaminodiphenyl in Ge genwart von anorganischen nicht reduzierend wirkenden Atzlaugen mit 2 Hol 2-Athylaini- no-5-oxynaphthaIin-7-.sulfonsKure vereinigt.
Als anorganische nicht reduzierend wir kende Ätzlaugen sind sowohl Ätzalkalien und Ammoniak als auch Lösungen bzw. Auf- sehlämmungen von Hydroxyden der Erd.- alkahmetalle zu verstehen.
Der neue Farbstoff stellt ein schwarzes. broncierendes Pulver dar, das sich in Wasser und in 10%iger Natronlauge mit violetter, in 10%iger Sololösung mit blauer und in konzentrierter Schwefelsäure mit blaugrüner Färbe löst. Er erzeugt auf Baumwolle im Ein- oder Zweibadverfahren mit Kupfersal zen nachbehandelt echte blaue Töne.
Beispiel: 21,6 Teile 3,3'-Dioxy-4,4'-diaminodiphe- nyl, in Form des Chlorhydrates:, werden in 100 Teilen Wasser und 12 Teilen konzen trierter Salzsäure verrührt und bei 5-8 C finit einer wässerigen Lösung von 18,8 Teilen Natriumnitrit tetrazotiert. Nach beendeter Reaktion kühlt man auf 3 C ab, neutralisiert durch Zugabe von 6,4 Teilen Soda und fil triert die ausgefallene Tetrazoverbindung ab.
Man trägt die ausgeschiedene Tetrazo- verbindung in eine auf 5 C abgekühlte Auf schlemmung von 56 Teilen 2-Äthylamino-5- oxynaphthalin-7-sulfonsäure und 29,6 Teilen Caleiumhydroxyd in 200 Teilen Wasser und 11,2 Volumteilen 50%iger Kalilauge- ein. Man kuppelt während 3 Stunden bei 5-8 C und beendet die Reaktion durch mehrstün diges Rühren, bei 10-20 C.
Hierauf ver dünnt man mit 1600 Teilen Wasser von 50 C, setzt 60 Teile Soda zu und filtriert vom Cal- ciumcarbonat ab. Das Filtrat wird mit 140 Teilen 10 % iger Salzsäure versetzt und der Farbstoff durch Aussalzen gewonnen.
Additional patent to main patent no. 229184. Process for the production of a new disazo dye. It has been found that a new disazo dye is obtained if tetrazo- tated 3,3'-dioxy-4; 4'-diaminodiphenyl in the presence of inorganic non-reducing caustic liquors with 2 hol of 2-ethylainino-5-oxynaphthaIin -7-.sulfonsKure united.
Inorganic, non-reducing caustic solutions are both caustic alkalis and ammonia as well as solutions or slurry insulations of hydroxides of the alkaline earth metals.
The new dye represents a black one. bronzing powder that dissolves in water and in 10% sodium hydroxide solution with violet, in 10% solo solution with blue and in concentrated sulfuric acid with blue-green color. It produces real blue tones on cotton in a one or two bath process, post-treated with copper salts.
Example: 21.6 parts of 3,3'-dioxy-4,4'-diaminodiphenyl, in the form of the chlorohydrate: are stirred into 100 parts of water and 12 parts of concentrated hydrochloric acid and an aqueous solution at 5-8 ° C. is finite tetrazotized by 18.8 parts of sodium nitrite. When the reaction has ended, the mixture is cooled to 3 ° C., neutralized by adding 6.4 parts of soda and the precipitated tetrazo compound is filtered off.
The precipitated tetrazo compound is added to a suspension, cooled to 5 ° C., of 56 parts of 2-ethylamino-5-oxynaphthalene-7-sulfonic acid and 29.6 parts of potassium hydroxide in 200 parts of water and 11.2 parts by volume of 50% strength potassium hydroxide solution . The coupling is carried out for 3 hours at 5-8 ° C. and the reaction is ended by stirring for several hours at 10-20 ° C.
It is then diluted with 1600 parts of water at 50 ° C., 60 parts of soda are added and the calcium carbonate is filtered off. 140 parts of 10% hydrochloric acid are added to the filtrate and the dye is obtained by salting out.
Claims (1)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH232505T | 1941-02-18 | ||
| CH257017T | 1942-02-02 | ||
| CH609299X | 1942-02-03 | ||
| CH616155X | 1942-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH257017A true CH257017A (en) | 1948-09-15 |
Family
ID=27429731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH257017D CH257017A (en) | 1941-02-18 | 1942-02-02 | Process for the preparation of a new disazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH257017A (en) |
-
1942
- 1942-02-02 CH CH257017D patent/CH257017A/en unknown
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