CH129472A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH129472A
CH129472A CH129472TA CH129472A CH 129472 A CH129472 A CH 129472A CH 129472T A CH129472T A CH 129472TA CH 129472 A CH129472 A CH 129472A
Authority
CH
Switzerland
Prior art keywords
production
dye
new dye
amino
water
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
Priority to CH129472T priority Critical patent/CH129472A/en
Publication of CH129472A publication Critical patent/CH129472A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr.<B>127259.</B>    Verfuhren zur Herstellung eines neuen Farbstoffes.    Es wurde gefunden, dass man einen neun  Farbstoff erhält, wenn man     diazotierte          a-Acetamino-2-amino-l-benzolsulfosäure    mit  dem     Pyrazolonderivat,    das erhalten wird  aus     Rohxylidin    durch     Sulfieren,        Diazotieren,     Reduzieren und Kondensieren mit     Acetessig-          ester,    kuppelt. Der so erhaltene Farbstoff  bildet ein gelbes Pulver.

   Er färbt Wolle  aus schwefelsaurem Bade in sehr gleich  mässigen, dem     Tartrazin    gleichen, kräftigen  Tönen. Die Färbungen sind sehr gut licht-,       wasser-    und     alkaliecht    und halten der sau  ren Walke stand.  



  <I>Beispiel:</I>  28,4 Teile des     Pyrazolonderivates,    das  erhalten wird aus     Rohxylidin    durch     Sul-          fieren,        Diazotieren,    Reduzieren und Kon  densieren mit     Acetessigester,    werden in 150       Teilen    Wasser mit 20 Teilen     calcinierter     Soda gelöst, mit Eis gekühlt und hierauf  mit der     Diazoverbindung    aus 28 Teilen     4-          .lcetamino-2-amino-l-benzolsulfosäure    ver-    setzt. Der sieh bildende Farbstoff scheidet  sich teilweise aus.

   Durch Zusatz von Koch  salz wird die Fällung vervollständigt, dann  wird möglichst neutral gestellt, filtriert und  getrocknet.



      Additional patent to main patent no. <B> 127259. </B> Procedure for the production of a new dye. It has been found that a nine dye is obtained when diazotized α-acetamino-2-amino-1-benzenesulfonic acid is coupled with the pyrazolone derivative obtained from crude xylidine by sulfating, diazotizing, reducing and condensing with acetoacetic ester. 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 can withstand sour fulling.



  <I> Example: </I> 28.4 parts of the pyrazolone derivative, which is obtained from crude xylidine by sulphation, diazotization, reduction and condensation with acetoacetic ester, are dissolved in 150 parts of water with 20 parts of calcined soda and cooled with ice and then mixed with the diazo compound from 28 parts of 4-.lcetamino-2-amino-1-benzenesulfonic acid. The dye which forms the appearance is partially separated out.

   The precipitation is completed by adding sodium chloride, then it is made as neutral as possible, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuer Farbstoffes, dadurch gekennzeichnet, dass man diazotierte 4-Acetamino-\3-amino-l-ben- zolsulfosäure mit dem Pyrazolonderivat, das erhalten wird aus Rohxvlidin durch Sul- fieren, Diazotieren, Reduzieren und Kon densieren mit Aeetessigester, kuppelt. Der so erhaltene Farbstoff bildet ein gelbes Pulver. Er färbt Wolle aus schwefelsaurem Bade in sehr gleichmässigen, dem Tartrazin gleichen, kräftigen Tönen. PATENT CLAIM: Process for the production of a new dye, characterized in that diazotized 4-acetamino- \ 3-amino-1-benzene sulfonic acid with the pyrazolone derivative, which is obtained from Rohxvlidin by sulphuring, diazotizing, reducing and condensing with Aeetessigester, couples. The dye thus obtained forms a yellow powder. He dyes wool from sulfuric acid bath in very even, strong tones similar to tartrazine. Die Färbungen sind sehr gut licht-, wasser- und alkaliecht und halten der sauren Walke stand. The dyeings are very resistant to light, water and alkali and withstand acidic fulling.
CH129472T 1926-12-04 1926-12-04 Process for the production of a new dye. CH129472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH129472T CH129472A (en) 1926-12-04 1926-12-04 Process for the production of a new dye.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH129472T CH129472A (en) 1926-12-04 1926-12-04 Process for the production of a new dye.
CH127259T 1926-12-04

Publications (1)

Publication Number Publication Date
CH129472A true CH129472A (en) 1928-12-17

Family

ID=25710814

Family Applications (1)

Application Number Title Priority Date Filing Date
CH129472T CH129472A (en) 1926-12-04 1926-12-04 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH129472A (en)

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