CH148982A - Process for the preparation of a yellow wool dye. - Google Patents

Process for the preparation of a yellow wool dye.

Info

Publication number
CH148982A
CH148982A CH148982DA CH148982A CH 148982 A CH148982 A CH 148982A CH 148982D A CH148982D A CH 148982DA CH 148982 A CH148982 A CH 148982A
Authority
CH
Switzerland
Prior art keywords
yellow
preparation
dye
wool dye
yellow wool
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH148982A publication Critical patent/CH148982A/en

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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     meta-Aminobenzelsulfosäure-          phenylamid    dianotiert und mit dem Natrium  salz des     1-(2'-Chlor-4'-sulfophenyl)-3-methyl-          5-pyrazolons    in Gegenwart überschüssiger  Soda kuppelt.  



  <I>Beispiel:</I>  24,5 Gewichtsteile     meta-Aminobenzolsulfo-          säurephenylamid    werden mit 48 Gewichts  teilen Salzsäure 20       B6    und 6,9 Gewichts  teilen Nitrit dianotiert und mit 31 Gewichts  teilen des     Natriumsalzes    des     1-(2'-Chlor-.4'-          sulfophenyl)-3-methyl-5-pyrazulons    in Gegen  wart überschüssiger Soda gekuppelt. Es ent  steht ein gelber     Farbstoff,    der mit Kochsalz  abgeschieden wird und nach dem Trocknen    ein gelbes, in Wasser leicht lösliches Pulver  bildet. Er färbt Wolle in     grünstichig    gelben  Tönen von sehr guter     Lichtheit.  



  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 meta-aminobenzelsulfosäure- phenylamide and the sodium salt of 1- (2'-chloro-4'-sulfophenyl) -3- methyl 5-pyrazolones in the presence of excess soda coupling.



  <I> Example: </I> 24.5 parts by weight of meta-aminobenzenesulfonic acid phenylamide are dianotized with 48 parts by weight of hydrochloric acid 20 B6 and 6.9 parts by weight of nitrite and 31 parts by weight of the sodium salt of 1- (2'-chlorine- .4'-sulfophenyl) -3-methyl-5-pyrazulons coupled in the presence of excess soda. A yellow dye is created that is deposited with common salt and, after drying, forms a yellow powder that is easily soluble in water. It dyes wool in greenish yellow tones with very good lightness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines gelben Wollfarbstoffes, dadurch gekennzeichnet, dass man meta-Amiriobenzolsulfosäurephenylamid dianotiert und mit dem Natriumsalz des 1-(2'-Chlor-4'-sulfopheriyl)- 3-methyl-5-pyrazo- lons in Gegenwart überschüssiger Soda kuppelt. Der so erhaltene Farbstoff stellt in trok- kenem Zustande ein gelbes, in Wasser leicht lösliches -Pulver dar und färbt Wolle in grün stichig gelben Tönen von sehr guter Licht echtheit. Claim: Process for the preparation of a yellow wool dye, characterized in that meta-Amiriobenzolsulfosäurephenylamid dianotiert and with the sodium salt of 1- (2'-chloro-4'-sulfopheriyl) -3-methyl-5-pyrazolone in the presence of excess soda clutch. In the dry state, the dye thus obtained is a yellow powder which is readily soluble in water and dyes wool in green, yellow shades of very good lightfastness.
CH148982D 1928-09-21 1929-09-19 Process for the preparation of a yellow wool dye. CH148982A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE148982X 1928-09-21
CH145154T 1929-09-19

Publications (1)

Publication Number Publication Date
CH148982A true CH148982A (en) 1931-08-15

Family

ID=25714620

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148982D CH148982A (en) 1928-09-21 1929-09-19 Process for the preparation of a yellow wool dye.

Country Status (1)

Country Link
CH (1) CH148982A (en)

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