CH127259A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH127259A
CH127259A CH127259DA CH127259A CH 127259 A CH127259 A CH 127259A CH 127259D A CH127259D A CH 127259DA CH 127259 A CH127259 A CH 127259A
Authority
CH
Switzerland
Prior art keywords
production
dye
new dye
acetamino
sulfophenyl
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH127259A publication Critical patent/CH127259A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
    • C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
    • C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone

Landscapes

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

Description

  

      Yerfabren    zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man     diazotierte        4-          Acetamino    -2-     amino        -l-benzolsulfosäure    mit  l- p -     Sulfophenyl    - 5 -     pyrazolon-    8 -     carbonsä,ure     kuppelt. Der so erhaltene Farbstoff bildet  ein gelbes Pulver. Er färbt Wolle aus       sehwefelsaurem    Bade in sehr gleichmässigen,  dem     Tartrazin    gleichen, kräftigen Tönen.

    Die Färbungen sind sehr gut licht-,     wasser-          und        alkaliecht    und halten der sauren Walke  stand.  



       Beispiel:     28,4 Teile     1-p-Sulfophenyl-5-pyrazolon-          8-carbonsäure    werden in<B>150</B> Teilen Wasser  mit 20 Teilen     calcinierter    Soda gelöst, mit Eis  gekühlt und hierauf mit der     Diazoverbindung     aus 2? Teilen     4-Acetamino-2-amino-l-benzol-          sulfosäure    versetzt. Der sich bildende Farb-         stoff    scheidet sich     teilweise    aus. Durch Zu  satz von Kochsalz     wird    die Fällung vervoll  ständigt, dann wird möglichst neutral ge  stellt, filtriert und getrocknet.



      Yerfabren for the production of a new dye. It has been found that a new dye is obtained when diazotized 4-acetamino -2-amino-1-benzenesulfonic acid is coupled with 1-p-sulfophenyl-5-pyrazolone-8-carboxylic acid. The dye thus obtained forms a yellow powder. He dyes wool from a sulfuric acid bath in very even, strong tones similar to tartrazine.

    The dyeings are very resistant to light, water and alkali and withstand acidic fulling.



       Example: 28.4 parts of 1-p-sulfophenyl-5-pyrazolone-8-carboxylic acid are dissolved in <B> 150 </B> parts of water with 20 parts of calcined soda, cooled with ice and then treated with the diazo compound from 2? Parts of 4-acetamino-2-amino-1-benzenesulfonic acid are added. The dye that forms is partially eliminated. The precipitation is completed by adding table salt, then it is made as neutral as possible, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, da.ss man diazotierte 4-Acetamino-2-amino-1-ben- zolsulfosäure mit l-p-Sulfophenyl-5-pyra.zo- lon-8-carbonsäure kuppelt. Der so erhaltene Farbstoff bildet ein gelbes Pulver. Er färbt Wolle aus schwefelsaurem Bade in sehr gleichmässigen, dem Tartrazin gleichen, krä f- tigen Tönen. Die Färbungen sind sehr licht-, Wasser- und alkaliecht und halten der sau ren Walke stand. PATENT CLAIM: Process for the production of a new dye, characterized in that diazotized 4-acetamino-2-amino-1-benzenesulfonic acid is coupled with l-p-sulfophenyl-5-pyra.zo-ion-8-carboxylic acid. The dye thus obtained forms a yellow powder. He dyes wool from a sulfuric acid bath in very even, strong tones similar to tartrazine. The colors are very light, water and alkali-proof and withstand acidic fulling.
CH127259D 1926-12-04 1926-12-04 Process for the production of a new dye. CH127259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH127259T 1926-12-04

Publications (1)

Publication Number Publication Date
CH127259A true CH127259A (en) 1928-08-16

Family

ID=4385799

Family Applications (1)

Application Number Title Priority Date Filing Date
CH127259D CH127259A (en) 1926-12-04 1926-12-04 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH127259A (en)

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