CH121008A - Process for the preparation of a developer dye. - Google Patents
Process for the preparation of a developer dye.Info
- Publication number
- CH121008A CH121008A CH121008DA CH121008A CH 121008 A CH121008 A CH 121008A CH 121008D A CH121008D A CH 121008DA CH 121008 A CH121008 A CH 121008A
- Authority
- CH
- Switzerland
- Prior art keywords
- brown
- preparation
- red
- dye
- color
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 8
- 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
- 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
- 235000019219 chocolate Nutrition 0.000 claims description 2
- 239000000835 fiber 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004327 boric acid 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
- 239000013067 intermediate product Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical class 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)
- Paper (AREA)
Description
Verfahren zur Darstellung eines .Entwielzlerfarbstoffes. Es wurde gefunden, dass ein wertvoller Entwicklerfarbstoff erhalten wird; wenn man tetrazotiertes o-Tolidin in molekularem Ver- bältnis mit 2'-Methyl-3'-amino-5'-sulfo-l-phe- iryl-5-pyrazolon-3-kai-borisäure zu einem Zwi schenprodukt vereinigt und dasselbe mit a-Naphtylaminsulfosäure-1, 6-Cleve weiter kuppelt. Der neue Farbstoff bildet ein braunschwarzes Pulver, das sich in Wasser mit rotbrauner, in konzentrierter Schwefelsäure mit blauvioletter Farbe löst.
Er färbt urge- beizte Baumwolle in rotbraunen Tönen, welche sich durch Diazotieren auf der Faser und nachfolgende Entwicklung mit Betanaphtol zu waschechten Schokoladebraun fixieren lassen.
<I>Beispiel:</I> Zu der Tetrazoditolyllösung aus 21,2 Tei len o-Tolidin lässt man bei<B>0-50</B> C die Lösung des Trinatriumsalzes von<B><U>31.3</U></B> Teilen 2'- Methyl-3'- amino - 5'- sulfo-1-pheriyl-5-pyrazo- lon-3-kai-botisäirre zufliessen. Sobald unver ändertes Tetrazoditolyl nicht mehr nachge wiesen werden kann, gibt man die Lösung von 24,5 Teilen a=Naphtylaminsulfosaurem Natroii-1, 6-Cleve zu.
Es tritt rasch Weiter kupplung ein unter Bildung eines dicken schwarzen Niederschlages. Nach einigen Stun den ist die Kombination beendigt. Man neu tralisiert sorgfältig durch Zugabe von Soda und salzt aus der hierbei entstehenden rot braunen Löaung den Farbstoff aus.
Process for the preparation of a .Entwielzler dye. It has been found that a valuable developer dye is obtained; when tetrazotized o-tolidine is combined in a molecular ratio with 2'-methyl-3'-amino-5'-sulfo-1-pheiryl-5-pyrazolone-3-kai-boric acid to form an intermediate product and the same with α-Naphthylamine sulfonic acid-1,6-Cleve further couples. The new dye forms a brown-black powder that dissolves in water with a red-brown color, and in concentrated sulfuric acid with a blue-violet color.
It dyes originally stained cotton in red-brown tones, which can be fixed to washable chocolate brown by diazotizing the fiber and then developing it with betanaphtol.
<I> Example: </I> The solution of the trisodium salt of <B> <U> 31.3 </ U is added to the tetrazoditolyl solution of 21.2 parts of o-tolidine at <B> 0-50 </B> C. > </B> Parts of 2'-methyl-3'-amino-5'-sulfo-1-pheriyl-5-pyrazolone-3-kai-botisäirre flow. As soon as unchanged tetrazoditolyl can no longer be detected, the solution of 24.5 parts of a = naphthylaminesulfosaurem Natroii-1, 6-Cleve is added.
Further coupling occurs rapidly with the formation of a thick black precipitate. The combination is over after a few hours. You neutralize carefully by adding soda and salt out the dye from the resulting red-brown solution.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE121008X | 1925-03-28 | ||
| CH119229T | 1925-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH121008A true CH121008A (en) | 1927-06-16 |
Family
ID=25709192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH121008D CH121008A (en) | 1925-03-28 | 1925-11-02 | Process for the preparation of a developer dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH121008A (en) |
-
1925
- 1925-11-02 CH CH121008D patent/CH121008A/en unknown
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