CH148984A - Process for the preparation of a yellow wool dye. - Google Patents

Process for the preparation of a yellow wool dye.

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Publication number
CH148984A
CH148984A CH148984DA CH148984A CH 148984 A CH148984 A CH 148984A CH 148984D A CH148984D A CH 148984DA CH 148984 A CH148984 A CH 148984A
Authority
CH
Switzerland
Prior art keywords
yellow
preparation
methyl
wool dye
dye
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 CH148984A publication Critical patent/CH148984A/en

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Description

  

  Verfahren zur Darstellung eines gelben Wollfarbstoffes.    Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung eines gelben     Wollfarb-          stoffes,    welches dadurch gekennzeichnet ist,       dalä    man     1-11Tethyl-4-amiuobenzol-2-sulfosäure-          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>    26,2 Gewichtsteile     1-Methyl-4-amirroben-          zol-2-srrlfosäure-pherrylamid    werden mit 48  Gewichtsteilen Salzsäure 200     Be    und 6,9       C'aewichtsteilen    Nitrit dianotiert und mit 31  Gewichtsteilen des     Natriumsalzes    des     1-(2'-          Chlor-4'-sulfoplrenyl)-3-methyl-5-pyr azolons    in  Gegenwart überschüssiger Soda gekuppelt.  Es entsteht ein gelber Farbstoff, der mit Koch  salz abgeschieden wird und nach dem Trock-         nen    ein gelbes, in Wasser leicht lösliches       Pulver-    bildet.

   Er färbt Wolle in     grünstichig-          gelben    Tönen von guter Lichtechtheit 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 1-11-ethyl-4-amiuobenzene-2-sulfonic acid-phenylamide is dianotated and the sodium salt of 1- (2'-chlorine- 4'-sulfophenyl) -3-methyl-5-pyrazolons in the presence of excess soda.

      <I> Example: </I> 26.2 parts by weight of 1-methyl-4-amirrobenzol-2-srrlfosäure-pherrylamid are dianotized with 48 parts by weight of hydrochloric acid 200 Be and 6.9 parts by weight of nitrite and with 31 parts by weight of the sodium salt of 1- (2'-chloro-4'-sulfoprenyl) -3-methyl-5-pyr azolons coupled in the presence of excess soda. The result is a yellow dye 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 shades of good lightfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines gelben Wollfarbstoffes, dadurch gekennzeichnet, dal#', man 1-Methyl-4-amirrobenzol-2-sulfosärrre-phe- nylamid dianotiert und mit dem Natriumsalz des 1-(2'-Chlor-4'-srrlfophenyl)-3-rnethyl-5-py- razolons in Gegenwart überschüssiger Soda kuppelt. Der so erhaltene Farbstoff stellt in trocke nem Zustande ein gelbes, in Wasser leicht lösliches Pulver dar und färbt Wolle in grün stichig-gelben Tönen von guter Lichtechtheit an. Claim: Process for the preparation of a yellow wool dye, characterized in that 1-methyl-4-amirrobenzene-2-sulfosärrre-phenylamide is dianotized and with the sodium salt of 1- (2'-chloro-4'-srrlfophenyl ) -3-methyl-5-py- razolons in the presence of excess soda. The dyestuff obtained in this way is a yellow powder which is readily soluble in water when dry and dyes wool in greenish-yellow shades of good lightfastness.
CH148984D 1928-09-21 1929-09-19 Process for the preparation of a yellow wool dye. CH148984A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE148984X 1928-09-21
CH145154T 1929-09-19

Publications (1)

Publication Number Publication Date
CH148984A true CH148984A (en) 1931-08-15

Family

ID=25714622

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148984D CH148984A (en) 1928-09-21 1929-09-19 Process for the preparation of a yellow wool dye.

Country Status (1)

Country Link
CH (1) CH148984A (en)

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