CH261281A - Process for the production of a new dye of the anthraquinone series. - Google Patents

Process for the production of a new dye of the anthraquinone series.

Info

Publication number
CH261281A
CH261281A CH261281DA CH261281A CH 261281 A CH261281 A CH 261281A CH 261281D A CH261281D A CH 261281DA CH 261281 A CH261281 A CH 261281A
Authority
CH
Switzerland
Prior art keywords
production
anthraquinone series
new dye
dye
anthraquinone
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH261281A publication Critical patent/CH261281A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/22—Dyes with unsubstituted amino groups
    • C09B1/24—Dyes with unsubstituted amino groups sulfonated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 253955.    Verfahren zur Herstellung eines neuen     Farbstoffes    der     Anthrachinonreihe.       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines neuen Farb  stoffes der     Anthrachinonreihe    und ist da  durch gekennzeichnet, dass man     1-Amino-4-          brom-8-ehloranthrachinon-2-sulfonsäure    mit     p-          Toluolsulfamid    kondensiert und das Konden  sationsprodukt hernach verseift.  



  <I>Beispiel:</I>  28 Gewichtsteile     1-amino-4-brom-8-chlor-          anthrachinon-2-sulfonsaures    Natrium werden  mit 14,4 Gewichtsteilen     p-Toluolsulfamid,    6,4  Gewichtsteilen     Natriumbicarbonat,    0,4 Ge  wichtsteilen Kupferbronze und 0,2 Gewichts  teilen     Kupferchlorür    in 350 Teilen Wasser  unter Rühren während 2 Stunden auf 40 bis  45  C erhitzt.  



  Nach erfolgter Kondensation wird das  Reaktionsprodukt auf übliche Weise aufgear  beitet und durch     Digerieren    in konzentrierter  Schwefelsäure bei gewöhnlicher oder erhöhter  Temperatur verseift. Durch Ausladen in    Wasser gewinnt man die     1,4-Diamino-8-chlor-          anthrachinon-2-sulfonsäure.     



  Der Farbstoff löst sich in konzentrierter  Schwefelsäure mit hellgelber Farbe, die beim  Zusatz von wenig     Paraformaldehyd    in Blau  umschlägt. Er färbt tierische Fasern, z. B.  Wolle, Seide, und künstliche Fasern wie  Nylon in     rotstichig    violetten Tönen von guten       Echtheiten.  



      Additional patent to main patent No. 253955. Process for the production of a new dye of the anthraquinone series. The present patent relates to a process for the production of a new dye of the anthraquinone series and is characterized by the fact that 1-amino-4-bromo-8-ehloranthraquinone-2-sulfonic acid is condensed with p-toluenesulfamide and the condensation product is saponified afterwards.



  <I> Example: </I> 28 parts by weight of 1-amino-4-bromo-8-chloro-anthraquinone-2-sulfonic acid sodium are mixed with 14.4 parts by weight of p-toluenesulfamide, 6.4 parts by weight of sodium bicarbonate, 0.4 parts by weight Copper bronze and 0.2 parts by weight of copper chloride in 350 parts of water heated to 40 to 45 ° C. for 2 hours with stirring.



  After condensation has taken place, the reaction product is worked up in the usual way and saponified by digestion in concentrated sulfuric acid at normal or elevated temperature. The 1,4-diamino-8-chloro-anthraquinone-2-sulfonic acid is obtained by unloading into water.



  The dye dissolves in concentrated sulfuric acid with a light yellow color, which turns blue when a little paraformaldehyde is added. It dyes animal fibers, e.g. B. wool, silk, and artificial fibers such as nylon in reddish purple shades of good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 1-Amino-4-brom-8- chloranthrachinon-2-sulfonsäure mit p-Toluol- sulfamid kondensiert und das Kondensations produkt hernach verseift. Der Farbstoff löst sich in konzentrierter. Schwefelsäure mit hellgelber Farbe, die beim Zusatz von wenig Paraformaldehyd in Blau umschlägt. Er färbt tierische Fasern, z. B. Wolle, Seide, und künstliche Fasern wie Nylon in rotstichig violetten Tönen von guten Echtheiten. PATENT CLAIM: Process for the production of a new dye of the anthraquinone series, characterized in that 1-amino-4-bromo-8-chloroanthraquinone-2-sulfonic acid is condensed with p-toluenesulfamide and the condensation product is then saponified. The dye dissolves in concentrated. Sulfuric acid with a light yellow color, which turns blue when a little paraformaldehyde is added. It dyes animal fibers, e.g. B. wool, silk, and artificial fibers such as nylon in reddish purple shades of good fastness properties.
CH261281D 1946-10-10 1946-10-10 Process for the production of a new dye of the anthraquinone series. CH261281A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261281T 1946-10-10
CH253955T 1948-04-15

Publications (1)

Publication Number Publication Date
CH261281A true CH261281A (en) 1949-04-30

Family

ID=25729814

Family Applications (1)

Application Number Title Priority Date Filing Date
CH261281D CH261281A (en) 1946-10-10 1946-10-10 Process for the production of a new dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH261281A (en)

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