CH121006A - Process for the preparation of a developer dye. - Google Patents
Process for the preparation of a developer dye.Info
- Publication number
- CH121006A CH121006A CH121006DA CH121006A CH 121006 A CH121006 A CH 121006A CH 121006D A CH121006D A CH 121006DA CH 121006 A CH121006 A CH 121006A
- Authority
- CH
- Switzerland
- Prior art keywords
- brown
- preparation
- violet
- dye
- amino
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 3
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 claims description 4
- NUIURNJTPRWVAP-UHFFFAOYSA-N 3,3'-Dimethylbenzidine Chemical compound C1=C(N)C(C)=CC(C=2C=C(C)C(N)=CC=2)=C1 NUIURNJTPRWVAP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 2
- 235000005811 Viola adunca Nutrition 0.000 claims description 2
- 240000009038 Viola odorata Species 0.000 claims description 2
- 235000013487 Viola odorata Nutrition 0.000 claims description 2
- 235000002254 Viola papilionacea Nutrition 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000013067 intermediate product Substances 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
- 239000003086 colorant Substances 0.000 claims 1
- 239000000975 dye Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- HBZVNWNSRNTWPS-UHFFFAOYSA-N 6-amino-4-hydroxynaphthalene-2-sulfonic acid Chemical compound C1=C(S(O)(=O)=O)C=C(O)C2=CC(N)=CC=C21 HBZVNWNSRNTWPS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Entwicklerfarbstoffes. . Es wurde gefunden, dass ein wertvoller Entwicklerfarbstoff erhalten wird,- wenn man tetrazotiertes o-Tolidin in molekularem Ver hältnis mit 2'-Methyl-3'-amino-5'-sulfo-l- phenyl-5-pyrazolon-3-karbonsäure zu einem Zwischenprodukt vereinigt und dasselbe in alkalischer Lösung mit 2-Amino-8-naphtol-6- sulfosäure weiterkuppelt.
Der neue Farbstoff bildet ein braun schwarzes Pulver, das sich in Wasser mit violettbrauner, in konzentrierter Schwefelsäure mit blauvioletter Farbe löst. Er färbt unge- beizte Baumwolle in violettbraunen Tönen, welche durch Diazotieren auf der Faser und nachfolgende Entwicklung mit Betanaphtol ohne wesentliche Nuancenänderung waschecht fixiert werden.
<I>Beispiel:</I> Zu der Tetrazoditolyllösung aus 21,2 Teilen o-Tolidin lässt man bei 0-5 C die Lösung des Trinatriumsalzes von 31,3 Teilen 2' 1VIethyl-3'-amino-5'-sulfo-l-phenyl-5-pyrazolon- 3-karbonsäure zufliessen. Sobald kein unver ändertes Tetrazoditolyl mehr nachgewiesen werden kann, gibt man die Lösung von 20 Teilen kalzinierter Soda und hierauf die schwach phenolphtalein-alkalische Lösung von 23,9 Teilen 2-Amino-8-naphtol-6-sulfosäure zu. Die Kombination ist nach wenigen Stunden beendigt.
Man neutrali,iert alsdann die braun violette Lösung mit Salzsäure und salzt den Farbstoff aus.
Process for the preparation of a developer dye. . It has been found that a valuable developer dye is obtained - if one adds tetrazotized o-tolidine in a molecular ratio with 2'-methyl-3'-amino-5'-sulfo-1-phenyl-5-pyrazolone-3-carboxylic acid combined with an intermediate product and coupled the same in alkaline solution with 2-amino-8-naphthol-6-sulfonic acid.
The new dye forms a brown-black powder that dissolves in water with a violet-brown color, and in concentrated sulfuric acid with a blue-violet color. It dyes unpickled cotton in violet-brown shades, which are fixed by diazotizing on the fiber and subsequent development with betanaphtol without any significant change in shade.
<I> Example: </I> To the tetrazoditolyl solution of 21.2 parts of o-tolidine, the solution of the trisodium salt of 31.3 parts of 2 '1VIethyl-3'-amino-5'-sulfo- l-phenyl-5-pyrazolone-3-carboxylic acid flow in. As soon as no more unchanged tetrazoditolyl can be detected, the solution of 20 parts of calcined soda and then the weakly phenolphthalein-alkaline solution of 23.9 parts of 2-amino-8-naphthol-6-sulfonic acid are added. The combination ends after a few hours.
The brown-violet solution is then neutralized with hydrochloric acid and the dye is salted out.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE121006X | 1925-03-28 | ||
| CH119229T | 1925-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH121006A true CH121006A (en) | 1927-06-16 |
Family
ID=25709190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH121006D CH121006A (en) | 1925-03-28 | 1925-11-02 | Process for the preparation of a developer dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH121006A (en) |
-
1925
- 1925-11-02 CH CH121006D patent/CH121006A/en unknown
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