CH309428A - Process for the preparation of a copperable disazo dye. - Google Patents

Process for the preparation of a copperable disazo dye.

Info

Publication number
CH309428A
CH309428A CH309428DA CH309428A CH 309428 A CH309428 A CH 309428A CH 309428D A CH309428D A CH 309428DA CH 309428 A CH309428 A CH 309428A
Authority
CH
Switzerland
Prior art keywords
disazo dye
acid
diazotized
preparation
amino
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 J R Geigy filed Critical Ag J R Geigy
Publication of CH309428A publication Critical patent/CH309428A/en

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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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/153—Disazo dyes in which the coupling component is a bis-(aceto-acetyl amide) or a bis-(benzoyl-acetylamide)

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

Description

  

  Verfahren zur Herstellung eines kupferbaren     Disazofarbstofes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines kupferbaren       Disazofarbstoffes.    Das Verfahren ist dadurch  gekennzeichnet, dass man 1     Mol        4,4'-Diaeeto-          aeety        lamino    -<B>3,3'</B> -     dichlor        -1,1'-diphenyl    mit  1.

       Mol        diazotierter    4-     Amino-diphenylha.rnstoff-          3-earbonsäure-3'-sulfonsäure    und 1     Mol        diazo-          tiertem        22-Amino-benzoesäure-5-sulfonsäure-ss-          oxyäthylamid    kuppelt.  



  Der erhaltene neue     Disazofarbstoff    stellt  ein gelbes Pulver dar, das sich in Wasser und  in konzentrierter Schwefelsäure mit gelber  Farbe löst. Die     nachgekupferten    Färbungen  auf     Cellulosefasern    sind rein     grünstiehig    gelb  und weisen hervorragende     Echt.heiten    auf.

      <I>Beispiel:</I>  35,1 Teile 4 -     Amino        -diphenylharnstoff    - 3     -          carbonsäure-3'-sulfonsäure    werden in 700 Tei  len Wasser mit 16 Teilen     Ätznatron    gelöst,  mit 13,8 Teilen     Natriumnitrit    vermischt,  durch Zustürzen von 72 Teilen     konz.    Salz  säure bei 5-10      diazotiert    und bei l0-15   mit einer     alkalischen    Lösung von 42,1 Teilen       4,4'-Diacetoacetylamino-3,3'-dichlor-1,1'-diphe-          nyl    und 20 Teilen     Natriumcarbonat    gekup  pelt.

   Die Suspension des     Monoazofarbstoffes     wird mit 10 Teilen     Natriumbicarbonat    und  mit der     Diazoniumverbindiuig    aus 26 Teilen       2-Amirio    -     benzoesäiire    - 5     -sulfonsäure-ss-        oxy-          äthylamid    versetzt.

   Der fertiggebildete     Dis-          azofarbstoff    der Formel  
EMI0001.0045     
         wird        langsam        auf        80         erwärmt,        mit        15%          lioelrsalz.    berechnet auf das erhaltene     Volu-          nien,        ausgesalzen    und nach einer Stunde ab  filtriert. Nach dem Trocknen erhält man ein  gelbes Pulver, das sich in Wasser und in kon  zentrierter Schwefelsäure mit gelber Farbe  löst.

   Die     nachgekupferten    Färbungen auf     Cel-          iulosefasern    sind rein     grünstichig    gelb und  weisen hervorragende     Echtheiten    auf.



  Process for the preparation of a copperable disazo dye. The present patent relates to a process for the preparation of a copperable disazo dye. The process is characterized in that 1 mole of 4,4'-diaeeto-aeety lamino - <B> 3,3 '</B> - dichloro -1,1'-diphenyl with 1.

       Mol of diazotized 4-amino-diphenylha.rnstoff- 3-carboxylic acid-3'-sulfonic acid and 1 mol of diazotized 22-amino-benzoic acid-5-sulfonic acid-s-oxyethylamide couples.



  The new disazo dye obtained is a yellow powder which dissolves in water and in concentrated sulfuric acid with a yellow color. The re-coppered colorations on cellulose fibers are purely greenish yellow and have excellent fastness properties.

      <I> Example: </I> 35.1 parts of 4-amino-diphenylurea-3-carboxylic acid-3'-sulfonic acid are dissolved in 700 parts of water with 16 parts of caustic soda, mixed with 13.8 parts of sodium nitrite, by adding 72 parts conc. Hydrochloric acid is diazotized at 5-10 and diazotized at 10-15 with an alkaline solution of 42.1 parts of 4,4'-diacetoacetylamino-3,3'-dichloro-1,1'-diphenyl and 20 parts of sodium carbonate.

   The suspension of the monoazo dye is mixed with 10 parts of sodium bicarbonate and with the diazonium compound from 26 parts of 2-aminolbenzoic acid-5-sulfonic acid-ss-oxyethylamide.

   The finished disazo dye of the formula
EMI0001.0045
         is slowly warmed to 80, with 15% ionic salt. calculated on the volume obtained, salted out and filtered off after one hour. After drying, a yellow powder is obtained which dissolves in water and in concentrated sulfuric acid with a yellow color.

   The re-coppered dyeings on cellulose fibers are purely greenish yellow and have excellent fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur. Herstellung eines kripfer- baren Disazofarbstoffes, dadureh gekennzeich- net, dass man 1 Mol 4,4'-Diacetoacetylamino- 3,3'-dichlor-1, PATENT CLAIM: Method for. Production of a scrambled disazo dye, marked by the fact that 1 mol of 4,4'-diacetoacetylamino-3,3'-dichloro-1, 1'-diphenyl mit 1 Mol diazotier- ter 4-Amino-diphenylharnstoff-3-carbonsäure- 3'-sulfonsäure und 1 Mol diazotiertem 2- Amino - benzoesäure - 5-sulf onsäure-ss-oxyäthyl- a,mid kuppelt. Der erhaltene neue Disazofarbstoff stellt ein gelbes Pulver dar, das sich in Wasser und in konzentrierter Schwefelsäure mit gel ber Farbe löst. 1'-diphenyl with 1 mole of diazotized 4-amino-diphenylurea-3-carboxylic acid-3'-sulfonic acid and 1 mole of diazotized 2-amino-benzoic acid-5-sulfonic acid-ss-oxyethyl-a, mid couples. The new disazo dye obtained is a yellow powder which dissolves in water and in concentrated sulfuric acid with a yellow color. Die nachgekupferten Färbun gen auf Cellulosefasern sind rein grünstichig gelb und weisen hervorragende Echtheiten auf. The re-coppered dyeings on cellulose fibers are purely greenish yellow and have excellent fastness properties.
CH309428D 1952-05-08 1952-05-08 Process for the preparation of a copperable disazo dye. CH309428A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH309428T 1952-05-08
CH307630T 1955-06-15

Publications (1)

Publication Number Publication Date
CH309428A true CH309428A (en) 1955-08-31

Family

ID=25735300

Family Applications (1)

Application Number Title Priority Date Filing Date
CH309428D CH309428A (en) 1952-05-08 1952-05-08 Process for the preparation of a copperable disazo dye.

Country Status (1)

Country Link
CH (1) CH309428A (en)

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