CH204143A - Process for the preparation of a water-soluble disazo dye. - Google Patents
Process for the preparation of a water-soluble disazo dye.Info
- Publication number
- CH204143A CH204143A CH204143DA CH204143A CH 204143 A CH204143 A CH 204143A CH 204143D A CH204143D A CH 204143DA CH 204143 A CH204143 A CH 204143A
- Authority
- CH
- Switzerland
- Prior art keywords
- water
- preparation
- disazo dye
- dye
- soluble disazo
- Prior art date
Links
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000000975 dye Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 3
- 239000010985 leather Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- VZLLZDZTQPBHAZ-UHFFFAOYSA-N 2-nitroaniline-4-sulfonic acid Chemical compound NC1=CC=C(S(O)(=O)=O)C=C1[N+]([O-])=O VZLLZDZTQPBHAZ-UHFFFAOYSA-N 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- SUZRRICLUFMAQD-UHFFFAOYSA-N N-Methyltaurine Chemical compound CNCCS(O)(=O)=O SUZRRICLUFMAQD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application 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
- 150000008049 diazo compounds Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Coloring (AREA)
Description
Verfahren zur Herstellung eines wasserlöslichen Disazofarbstoffes. Gegenstand des vorliegenden Zusatzpaten tes ist ein Verfahren zur Ilerstellung eines wasserlöslichen Disazeiarbstoffes, welches dadurch gekennzeichnet ist, dass man 1,
3- Dioxybenzol mit<B>1</B> Mel. diazotierter 4-Amino- benzol <B>- 1 -</B> methyltaurin <B>-</B> 2<B>-</B> sulionsäure und <B>1</B> Mol. diazotierter 2-Nitro-l-aminobenzol-4- sulfonsäure vereinigt.
<I>Beispiel:</I> Die aus<B>31,2</B> Gewielitsteilen 4-Amino- benzol-l-methyltaurin-92-sulfo-nsäure (M. G. 312) von der folgenden Formel-
EMI0001.0022
in der üblichen Weise hergestellte wässerige Lösung der Diazoverbindung fliesst bei<B>0 '</B> C unter Rühren in eine wässerige Lösung von <B>11</B> Gewichtsteilen 1,3-Dioxybenzol (M.
G. <B>110)</B> in Gegenwart von Natriumearbonat. Nach be endeter ]Kupplung fliesst zu dem gebildeten Farbstoff allmählich eine aus<B>21,8</B> Gewichts- teilen 2-Nitro-l-aminobenzel-4-sulfonsäure er haltene Diazosuspension. In sodaalkalischem Medium ist die Bildung des Disazofarbstof- ès sehr rasch beendet. Der Farbstoff wird ausgesalzen, isoliert und getrocknet.
Er stellt ein schwarzbraunes Pulver dar, das sich in Wasser mit rötlieh hellbrauner Farbe löst und Leder in rötlich hellbraunen Tönen einfärbt.
Process for the preparation of a water-soluble disazo dye. The subject of the present additional patent is a process for the production of a water-soluble disazing agent, which is characterized in that 1,
3- Dioxybenzene with <B> 1 </B> Mel. Diazotized 4-aminobenzene <B> - 1 - </B> methyltaurine <B> - </B> 2 <B> - </B> sulionic acid and 1 mol. Of diazotized 2-nitro-1-aminobenzene-4-sulfonic acid combined.
<I> Example: </I> The from <B> 31.2 </B> Gewielitsteile 4-amino-benzene-l-methyltaurine-92-sulfonic acid (M.G. 312) of the following formula
EMI0001.0022
Aqueous solution of the diazo compound prepared in the usual way flows at <B> 0 '</B> C with stirring into an aqueous solution of <B> 11 </B> parts by weight of 1,3-dioxybenzene (M.
G. <B> 110) </B> in the presence of sodium carbonate. After the coupling has ended, a diazo suspension made from 21.8 parts by weight of 2-nitro-1-aminobenzel-4-sulfonic acid gradually flows into the dye formed. In a soda-alkaline medium the formation of the disazo dye ends very quickly. The dye is salted out, isolated and dried.
It is a black-brown powder that dissolves in water with a reddish light brown color and dyes leather in reddish light brown tones.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE204143X | 1936-09-04 | ||
| CH200675T | 1938-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH204143A true CH204143A (en) | 1939-04-15 |
Family
ID=25723564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH204143D CH204143A (en) | 1936-09-04 | 1937-08-19 | Process for the preparation of a water-soluble disazo dye. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH204143A (en) |
-
1937
- 1937-08-19 CH CH204143D patent/CH204143A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH204144A (en) | Process for the preparation of a water-soluble disazo dye. | |
| CH204146A (en) | Process for the preparation of a water-soluble disazo dye. | |
| CH204149A (en) | Process for the preparation of a water-soluble disazo dye. | |
| CH202434A (en) | Process for the preparation of a water-soluble monoazo dye. | |
| CH204138A (en) | Process for the preparation of a water-soluble disazo dye. | |
| CH191165A (en) | Process for the preparation of a new monoazo dye. | |
| CH203599A (en) | Process for the preparation of a water-soluble azo dye. | |
| CH204145A (en) | Process for the preparation of a water-soluble disazo dye. | |
| CH218816A (en) | Process for the preparation of a disazo dye. | |
| CH202435A (en) | Process for the preparation of a water-soluble monoazo dye. | |
| CH210493A (en) | Process for the preparation of a water-soluble azo dye. | |
| CH210495A (en) | Process for the preparation of a water-soluble azo dye. | |
| CH200063A (en) | Process for the preparation of an azo dye. | |
| CH202432A (en) | Process for the preparation of a water-soluble monoazo dye. | |
| CH202437A (en) | Process for the preparation of a water-soluble monoazo dye. | |
| CH218815A (en) | Process for the preparation of a disazo dye. | |
| CH202430A (en) | Process for the preparation of a water-soluble monoazo dye. | |
| CH203596A (en) | Process for the preparation of a water-soluble azo dye. | |
| CH235457A (en) | Process for the preparation of a water-soluble monoazo dye. | |
| CH209560A (en) | Process for the preparation of a water-soluble azo dye. | |
| CH218813A (en) | Process for the preparation of a disazo dye. | |
| CH195539A (en) | Process for the preparation of a water-soluble azo dye. | |
| CH200676A (en) | Process for the preparation of a water-soluble monoazo dye. | |
| CH292301A (en) | Process for the preparation of a monoazo dye of the pyrazolone series. | |
| CH202431A (en) | Process for the preparation of a water-soluble monoazo dye. |