CH121016A - Process for the preparation of a developer dye. - Google Patents
Process for the preparation of a developer dye.Info
- Publication number
- CH121016A CH121016A CH121016DA CH121016A CH 121016 A CH121016 A CH 121016A CH 121016D A CH121016D A CH 121016DA CH 121016 A CH121016 A CH 121016A
- Authority
- CH
- Switzerland
- Prior art keywords
- brown
- dye
- red
- preparation
- nitro
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 10
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 claims description 4
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 claims description 3
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 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
- 125000003277 amino group Chemical group 0.000 claims description 2
- 235000019219 chocolate Nutrition 0.000 claims description 2
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000013067 intermediate product Substances 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- JBIJLHTVPXGSAM-UHFFFAOYSA-N 2-naphthylamine Chemical compound C1=CC=CC2=CC(N)=CC=C21 JBIJLHTVPXGSAM-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 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
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 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
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Entwiclilerfarbstoffes. Es wurde gefunden, dass ein wertvoller Entwicklerfarbstoff erhalten wird, wenn man tetrazotiertes Benzidin in molekularem Ver- bältnis mit 2'-Methyl-3'-nitro-5'-sulfo-1-phenyl- 5-pyrazolon-3-karborisäuremit einem Zwischen produktvereinigt, dasselbe mit a-Naphtylamin- sulfosäure-1,
6-Cleve weiterkuppelt und in dem so gebildeten Disazofarbstoff die Nitrogruppe mit Schwefelnatron zurAminogruppe reduziert.
Der neue Farbstoff bildet ein braunschwar zes Pulver, das sich in Wasser mit rotbrauner, in konzentrierter Schwefelsäure mit blauvio letter Farbe löst. Er färbt ungeheizte Baum wolle in rotbraunen Tönen, welche sich durch Diazotieren auf der Fa-er und nachfolgende Entwicklung mit Betanaphtol zu waschechtem Schokoladebraun fixieren lassen.
Beispiel: Zu der Tetrazodiphenyllösung aus 18,4 Teilen Benzidin lässt man bei 0-5 C die Lösung des Trinatriumsalzes von 34,3 Teilen 2'-Methyl-3'-nitro-5'-sulfo-l-phenyl-5-pyrazo- lon-3-karbonsäure zufliessen. Nach vollständi ger Bildung des Zwischenproduktes gibt man die Lösung von 24,5 Teilen a-naphtylamin- sulfosaurem Natron-1,6-Cleve zu. Die Kom bination ist nach wenigen Stunden beendigt.
Man neutralisiert durch Zugabe von 18 Teilen kalzinierter Soda, gibt die Lösung von 60 Teilen kristallisiertem Schwefelnatron zu und hält die braunrote Lösung solange bei 50 C, bis sich kein unverändertes Schwefelnatron mehr nachgreisen lässt, was l2-15 Stunden dauert. Alsdann wird die Salzsäure neutra lisiert und der Farbstoff ausgesalzen.
Process for the preparation of a developer dye. It has been found that a valuable developer dye is obtained if tetrazotized benzidine is combined in a molecular ratio with 2'-methyl-3'-nitro-5'-sulfo-1-phenyl-5-pyrazolone-3-carboric acid with an intermediate , the same with a-naphthylamine sulfonic acid-1,
6-Cleve further coupled and in the disazo dye thus formed, the nitro group is reduced to the amino group with sodium sulphide.
The new dye forms a brownish-black powder that dissolves in water with a red-brown color, and in concentrated sulfuric acid with a blue-violet color. It dyes unheated cotton in red-brown tones, which can be fixed to washable chocolate brown by diazotizing on the fiber and subsequent development with betanaphtol.
Example: The solution of the trisodium salt of 34.3 parts of 2'-methyl-3'-nitro-5'-sulfo-1-phenyl-5-pyrazzo is added to the tetrazodiphenyl solution of 18.4 parts of benzidine at 0-5 ° C. ion-3-carboxylic acid flow in. After the intermediate product has been formed completely, the solution of 24.5 parts of a-naphthylamine sulfonic acid sodium 1,6-Cleve is added. The combination is completed after a few hours.
The mixture is neutralized by adding 18 parts of calcined soda, the solution of 60 parts of crystallized sodium sulphide is added and the brownish-red solution is kept at 50 ° C. until no more unchanged sodium sulfate can be traced, which takes 12-15 hours. The hydrochloric acid is then neutralized and the dye is salted out.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE121016X | 1925-03-28 | ||
| CH119229T | 1925-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH121016A true CH121016A (en) | 1927-07-01 |
Family
ID=25709200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH121016D CH121016A (en) | 1925-03-28 | 1925-11-02 | Process for the preparation of a developer dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH121016A (en) |
-
1925
- 1925-11-02 CH CH121016D patent/CH121016A/en unknown
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