CH148983A - Process for the preparation of a yellow wool dye. - Google Patents
Process for the preparation of a yellow wool dye.Info
- Publication number
- CH148983A CH148983A CH148983DA CH148983A CH 148983 A CH148983 A CH 148983A CH 148983D A CH148983D A CH 148983DA CH 148983 A CH148983 A CH 148983A
- Authority
- CH
- Switzerland
- Prior art keywords
- yellow
- preparation
- methyl
- dye
- wool dye
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zur Darstellung eines gelben Wollfarbstoffes. Gegenstand dieses Patentes ist ein Ver fahren zur Darstellung eines gelben Woll- farbstoffes, welches dadurch gekennzeichnet ist, dass man 1-Methyl-4-aminobenzol-2-sulfö- säure-phenylamid dianotiert und mit dem Na triumsalz des 1-(2'-Chlor-5'-sulfophenyl)-3- methyl-5-pyrazolons in Gegenwart überschüs siger Soda kuppelt.
<I>Beispiel:</I> 26,2 Gewichtsteile 1-lMethyl-4-aminoben- zol-2-sulfosäure-phenylamid werden mit 48 Gewichtsteilen Salzsäure 20' B@ und 6,9 Gewichtsteilen Nitrit dianotiert und mit 31- Gewichtsteilen des Natriumsalzes des 1-(2'- Chlor-5'-sulfophenyl)-3-methyl-5-pyrazolons in Gegenwart von überschüssiger Soda gekup pelt. Es entsteht ein gelber Farbstoff, der mit Kochsalz abgeschieden wird und nach dem Trocknen ein gelbes, in Wasser leieht lösliches Pulver bildet.
Er färbt Wolle in grünstichig-gelben Tönen von guter Licht echtheit an.
Process for the preparation of a yellow wool dye. The subject of this patent is a process for the preparation of a yellow wool dye, which is characterized in that 1-methyl-4-aminobenzene-2-sulfoic acid-phenylamide is dianotated and trium salt of 1- (2'- Chlorine-5'-sulfophenyl) -3-methyl-5-pyrazolones coupled in the presence of excess soda.
<I> Example: </I> 26.2 parts by weight of 1-l-methyl-4-aminobenzene-2-sulfonic acid-phenylamide are dianotized with 48 parts by weight of hydrochloric acid 20 'B @ and 6.9 parts by weight of nitrite and mixed with 31 parts by weight of the Sodium salt of 1- (2'-chloro-5'-sulfophenyl) -3-methyl-5-pyrazolone in the presence of excess soda gekup pelt. A yellow dye is created, which is deposited with common salt and, after drying, forms a yellow powder that is slightly soluble in water.
It dyes wool in greenish-yellow tones with good lightfastness.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE148983X | 1928-09-21 | ||
CH145154T | 1929-09-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH148983A true CH148983A (en) | 1931-08-15 |
Family
ID=25714621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH148983D CH148983A (en) | 1928-09-21 | 1929-09-19 | Process for the preparation of a yellow wool dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH148983A (en) |
-
1929
- 1929-09-19 CH CH148983D patent/CH148983A/en unknown
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