CH122927A - Process for the preparation of a new dye. - Google Patents

Process for the preparation of a new dye.

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Publication number
CH122927A
CH122927A CH122927DA CH122927A CH 122927 A CH122927 A CH 122927A CH 122927D A CH122927D A CH 122927DA CH 122927 A CH122927 A CH 122927A
Authority
CH
Switzerland
Prior art keywords
new dye
preparation
yellow color
dye
dinitrobenzene
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 CH122927A publication Critical patent/CH122927A/en

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Description

  

      Verfahren    zur Darstellung eines neuen Farbstoffes.    Es ist gefunden worden, dass man einen  in Wasser löslichen Farbstoff erhält, der  vorzugsweise die tierische Faser in orange  gelben licht- und     walkechten    Tönen anfärbt,  wenn man ein Molekül     1.3-Dihalogen-4.6-di-          nitrobenzol    mit zwei Molekülen     4'-Methyl-4-          amirrodiphenylamin-2-sulfosäure    kondensiert.

    <I>Beispiel</I>  23,7 Gewichtsteile     1.3-Diehlor-4.6-dinitro-          benzol    werden in der     15-fachen    Menge Wasser,  dem etwas Alkohol hinzugefügt ist, suspen-         diert.    Dann lässt man innerhalb 15 Stunden  in diese Suspension eine     sodaalkalische    Lösung,  hergestellt aus 56 Gewichtsteilen     4'-1Vlethyl-          4-aminodiphenylamin-2-sulfosäure    in 400 Tei  len Wasser und 24 Gewichtsteilen     calcinier-          tes    Soda einlaufen. Es tritt unter Braunfär  bung Lösung ein.

   Nachdem einige Stunden       nacbgekocht    worden ist, wird die tief braun  gefärbte Lösung heiss filtriert und aus dem  Filtrat das     Natronsalz    des     Farbstoffes    aus  gesalzen. Dem Farbstoff kommt folgendes  Formelbild zu  
EMI0001.0019     
    Das     Natronsalz    des neuen Farbstoffes  stellt ein rostbraunes Pulver dar, das sich in  konzentrierter Schwefelsäure zuerst hellgelb  löst. Die Lösung färbt sich beim Erwärmen  olivfarben, dann grün. In Alkohol ist es  schwer, in warmem Wasser leicht löslich mit    rotgelber Farbe. Auf der Wollfaser erzeugt  er feurig orangegelbe echte Töne.



      Process for the preparation of a new dye. It has been found that a water-soluble dye is obtained which preferably dyes the animal fibers in orange-yellow light and whale-fast shades if one molecule of 1,3-dihalo-4,6-dinitrobenzene is mixed with two molecules of 4'-methyl- 4- amirrodiphenylamine-2-sulfonic acid condensed.

    <I> Example </I> 23.7 parts by weight of 1,3-diehlor-4,6-dinitrobenzene are suspended in 15 times the amount of water to which a little alcohol has been added. A soda-alkaline solution, prepared from 56 parts by weight of 4'-1Vlethyl-4-aminodiphenylamine-2-sulfonic acid in 400 parts of water and 24 parts by weight of calcined soda, is then allowed to run into this suspension over the course of 15 hours. It occurs with a brown discoloration solution.

   After boiling for a few hours, the deep brown colored solution is filtered hot and the sodium salt of the dye is salted out of the filtrate. The following formula applies to the dye
EMI0001.0019
    The sodium salt of the new dye is a rust-brown powder that first dissolves in concentrated sulfuric acid in a light yellow color. The solution turns olive when heated, then green. It is difficult in alcohol, easily soluble in warm water with a red-yellow color. It creates fiery orange-yellow real tones on the wool fiber.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man ein Molekül 1.3-Dihalogetr-4.6-dinitrobenzol mit zwei Molekülen 4'-Methyl-4-amino-di- phenylamin- -strlfosäure kondensiert. Das Natronsalz des neuen Farbstoffes stellt ein rostbraunes Pulver dar, das sich in konzentrierter Schwefelsäure zuerst hellgelb löst. Die Lösung färbt sieh beim Erwärmen olivfarben, dann grün. In Alkohol ist es schwer, in warmem Wasser leicht löslich mit rotgel ber Farbe. Auf der Wollfaser erzeugt er feurig orangegelbe echte Töne. PATENT CLAIM: Process for the preparation of a new dye, characterized in that one molecule of 1,3-dihalo-4,6-dinitrobenzene is condensed with two molecules of 4'-methyl-4-amino-diphenylamine-trifoic acid. The sodium salt of the new dye is a rust-brown powder that first dissolves in concentrated sulfuric acid in a light yellow color. The solution turns olive when heated, then green. In alcohol it is difficult to dissolve in warm water with a red-yellow color. It creates fiery orange-yellow real tones on the wool fiber.
CH122927D 1925-05-22 1926-05-19 Process for the preparation of a new dye. CH122927A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE122927X 1925-05-22
CH120527T 1926-05-19

Publications (1)

Publication Number Publication Date
CH122927A true CH122927A (en) 1927-10-17

Family

ID=25709489

Family Applications (1)

Application Number Title Priority Date Filing Date
CH122927D CH122927A (en) 1925-05-22 1926-05-19 Process for the preparation of a new dye.

Country Status (1)

Country Link
CH (1) CH122927A (en)

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