CH131257A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH131257A
CH131257A CH131257DA CH131257A CH 131257 A CH131257 A CH 131257A CH 131257D A CH131257D A CH 131257DA CH 131257 A CH131257 A CH 131257A
Authority
CH
Switzerland
Prior art keywords
blue
production
dye
amino
azo dye
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 CH131257A publication Critical patent/CH131257A/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
    • 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
    • C09B33/08—Disazo dyes in which the coupling component is a hydroxy-amino compound
    • C09B33/10—Disazo dyes in which the coupling component is a hydroxy-amino compound in which the coupling component is an amino naphthol
    • 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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24—Disazo or polyazo compounds
    • C09B45/26—Disazo or polyazo compounds containing chromium

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>128006.</B>    Verfahren zur Herstellung eines neuen     Azolarbstoffes.       Es wurde gefunden,     dass    man einen  neuen wertvollen Farbstoff erhält, wenn  man den     o-Oxyazofarbstoff,    welcher durch  Vereinigen von 2     Mol.        diazotiertem        5-Nitro-          -#-amino-l-phenol    mit<B>1</B>     Mol.    des Harnstoffes       der2-Amino-5-oxynaphtalin-7-sulfoeureent--          steht,    mit Chrom abgebenden Mitteln be  handelt.

   Der neue Farbstoff stellt ein blau  graues Pulver dar, löst sieh in Wasser und       I     in verdünnten     Alkalien    mit blauer, in kon  zentrierter Schwefelsäure mit blauvioletter  Farbe auf und färbt Baumwolle aus neu  tralem     Glaubersalzbade    in blauen Tönen mit       U        ten        Eehtheitseigenschaften.     



  <I>Beispiel:</I>  Die 2     Mol.    entsprechende Menge von     diazc.-          tiertem        5-Nitro-2-amino-l-phenol    wird mit  <B>1</B>     Mol.    des Harnstoffes der     2-Amino-5-cxy-          naphtalin-7-sulfosä,ure    wie üblich vereinigt.  Der gebildete Farbstoff wird in<B>8000</B> Teilen  Wasser gelöst, mit     Chromfluoridlösung,    die  <B>30</B> Teile     Cr203    enthält, versetzt,     liierauf36       Stunden unter Ersatz des verdampfenden  Wassers gekocht,     ausgesalzen    und getrock  net.



  Additional patent to main patent no. <B> 128006. </B> Process for the production of a new azo substance. It has been found that a new valuable dye is obtained if the o-oxyazo dye, which is obtained by combining 2 moles of diazotized 5-nitro- - # - amino-1-phenol with 1 mole. of urea der2-amino-5-oxynaphthalene-7-sulfoeureent-- is treated with chromium-releasing agents.

   The new dye is a blue-gray powder, dissolves in water and I in dilute alkalis with blue, in concentrated sulfuric acid with blue-violet color and dyes cotton from neutral Glauber's salt bath in blue tones with U ten integrity properties.



  <I> Example: </I> The 2 mol. Corresponding amount of diacetated 5-nitro-2-amino-1-phenol is mixed with <B> 1 </B> mol. Of the urea of the 2-amino- 5-cxynaphthalene-7-sulphonic acid combined as usual. The dye formed is dissolved in 8000 parts of water, mixed with chromium fluoride solution containing 30 parts of Cr203, boiled for 36 hours, replacing the evaporating water, salted out and dried.

Claims (1)

PATENTANSPRIUCII: Verfahren zur Herstellung eines chrom haltigen Farbstoffes, dadurch gekennzeich net, dass man den o-Oxy-azofarbstoff, wel cher durch Vereinigen von 2 Mol. diazo- tiertem 5-Nitro-2-amino-l-phenol mit<B>1</B> Mol. des Harnstoffes der 2-Amino-5-oxynaphtalin- 7-sulfosäure entsteht, mit Chrom abgebenden Mitteln behandelt. PATENT APPLICATION: Process for the production of a chromium-containing dye, characterized in that the o-oxy-azo dye, which is obtained by combining 2 mol. Of diazotized 5-nitro-2-amino-1-phenol with 1 </B> Mol. Of the urea of the 2-amino-5-oxynaphthalene-7-sulfonic acid is formed, treated with chromium-releasing agents. Der neue Farbstoff stellt ein blaugraues Pulver dar, löst sieh in Wasser und in verdünnten Alkalien mit- blauer, in konzentrierter Schwefelsäure mit blauvio letter Farbe auf und färbt Baumwolle aus neutralem Glaubersalzbade in blauen Tönen mit guten Echtheitseigenseliaften. The new dye is a blue-gray powder, dissolves in water and in dilute alkalis with blue, in concentrated sulfuric acid with blue-violet color and dyes cotton from neutral Glauber's salt bath in blue tones with good fastness properties.
CH131257D 1927-04-23 1927-04-23 Process for the production of a new azo dye. CH131257A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH131257T 1927-04-23
CH128006T 1927-08-19

Publications (1)

Publication Number Publication Date
CH131257A true CH131257A (en) 1929-01-31

Family

ID=25711018

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131257D CH131257A (en) 1927-04-23 1927-04-23 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH131257A (en)

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