CH143590A - Process for the preparation of a stain-coloring disazo dye. - Google Patents
Process for the preparation of a stain-coloring disazo dye.Info
- Publication number
- CH143590A CH143590A CH143590DA CH143590A CH 143590 A CH143590 A CH 143590A CH 143590D A CH143590D A CH 143590DA CH 143590 A CH143590 A CH 143590A
- Authority
- CH
- Switzerland
- Prior art keywords
- coloring
- preparation
- parts
- stain
- brown
- Prior art date
Links
- 238000004040 coloring Methods 0.000 title claims description 4
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- QEZZCWMQXHXAFG-UHFFFAOYSA-N 8-aminonaphthalene-2-sulfonic acid Chemical compound C1=C(S(O)(=O)=O)C=C2C(N)=CC=CC2=C1 QEZZCWMQXHXAFG-UHFFFAOYSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 150000008049 diazo compounds Chemical class 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- CMOLPZZVECHXKN-UHFFFAOYSA-N 7-aminonaphthalene-1,3-disulfonic acid Chemical compound C1=C(S(O)(=O)=O)C=C(S(O)(=O)=O)C2=CC(N)=CC=C21 CMOLPZZVECHXKN-UHFFFAOYSA-N 0.000 claims 1
- 238000010186 staining Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 235000010288 sodium nitrite Nutrition 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
Verfahren zur Darstellung eines beizenfärbenden Disazofarbstoffes. Es wurde gefunden, dass man einen wert- vollen,beizenfärbendenDisazofarbstoft erhält, wenn man 2-Aminonaplitalin-6,8-disulfo- säure diazotiert, mit 1-Aminonaplitalin-7- sulfosäure kombiniert, erneut diazotiert und mit 1-Oxybenzol-2-carbonsäure kuppelt.
<I>Beispiel:</I> 30,3 Teile 2-Aminonapl-italin-6,8-disulfo- säure in 10%iger Anschlämmung werden nach Zusatz von 12 Teilen Salzsäure 30%ig mit 6,9 Teilen Natriumnitrit diazotiert, worauf eine Lösung von 22,3 Teilen 1- Aminonaphtalin-7-sulfosäure in 250 Teilen Wasser zugefügt wird.
Nach beendeter Kupplung wird mit 4 Teilen Natronhydrat neutralisiert, 7 Teile Natriumnitrit zugegeben und bei<B>10'</B> durch Zusatz von 35 Teilen Salzsäure 30%ig rasch diazotiert. Die Di- azoverbindung wird mit Chlorkalium aus gefällt und gepresst. Der Presskuchen wird darauf mit 150 Teilen Wasser und 1.50 Tei len Eis angeteigt, mit 14 Teilen 1-Oxy- benzol-2-carbonsäure als Natronsalz versetzt und 30 Teile Natronlauge 20%ig langsam zufliessen gelassen.
Nach beendeter Kupp lung wird der Farbstoff mit Kochsalz ge fällt.
Der Farbstoff bildet ein braunes Pulver, löslich in Wasser mit gelbbrauner, in konz. Schwefelsäure mit blaugrüner Farbe. Er er zeugt im Chromdruck ein Braun von grosser Seifen-, Wasch- und Lichtechtheit.
Process for the preparation of a stain-coloring disazo dye. It has been found that a valuable, stain-coloring disazo dye is obtained if 2-aminonaplitalin-6,8-disulfonic acid is diazotized, combined with 1-aminonaplitalin-7-sulfonic acid, diazotized again and with 1-oxybenzene-2-carboxylic acid clutch.
<I> Example: </I> 30.3 parts of 2-aminonapl-italin-6,8-disulphonic acid in 10% suspension are diazotized with 6.9 parts of sodium nitrite after addition of 12 parts of 30% hydrochloric acid, whereupon a solution of 22.3 parts of 1-aminonaphthalene-7-sulfonic acid in 250 parts of water is added.
After coupling has ended, the mixture is neutralized with 4 parts of sodium hydrate, 7 parts of sodium nitrite are added and, at 10%, the mixture is rapidly diazotized by adding 35 parts of 30% hydrochloric acid. The diazo compound is precipitated with potassium chloride and pressed. The press cake is then made into a paste with 150 parts of water and 1.50 parts of ice, 14 parts of 1-oxybenzene-2-carboxylic acid as sodium salt are added and 30 parts of 20% sodium hydroxide solution are allowed to slowly flow in.
After coupling is complete, the dye is precipitated with common salt.
The dye forms a brown powder, soluble in water with yellow-brown, in conc. Sulfuric acid with a blue-green color. With chrome printing, it creates a brown that is extremely fast to soap, washing and light.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE143590X | 1928-02-20 | ||
| CH141877T | 1929-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH143590A true CH143590A (en) | 1930-11-15 |
Family
ID=25713944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH143590D CH143590A (en) | 1928-02-20 | 1929-02-18 | Process for the preparation of a stain-coloring disazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH143590A (en) |
-
1929
- 1929-02-18 CH CH143590D patent/CH143590A/en unknown
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