CH131259A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH131259A
CH131259A CH131259DA CH131259A CH 131259 A CH131259 A CH 131259A CH 131259D A CH131259D A CH 131259DA CH 131259 A CH131259 A CH 131259A
Authority
CH
Switzerland
Prior art keywords
blue
dye
production
chromium
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 CH131259A publication Critical patent/CH131259A/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
    • 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
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass     rnan    einen neuen  wertvollen     Farbstoff    erhält,     wenn    man den       o-Oxyazofarbstoff,    welcher     dureh    Vereinigen  von     diazotierteni        5-Nitro-4-chlor-2-amino-l-          plieriol    mit     2-(2'-lyIethoxy-4'-methyl)-phenyl-          amirio-5-oxynaphthalin-7-sulfosäure    entsteht,  mit Chrom abgebenden Mitteln unter Druck  behandelt.

   Der neue     Farbstoff    stellt ein dun  kelblaues Pulver dar, löst sich in verdünnter       Sodalösung    und Natronlauge mit blauer, in  konzentrierter Schwefelsäure mit blauvioletter  Farbe auf und färbt Wolle in     grünstichig     blauen und Baumwolle aus neutralem     Glau-          bersalzbade    in blaugrauen Tönen mit guten  Echtheitseigenschaften.  



       Beispiel:     5,58 Gewichtsteile des     Farbstoffes    aus  dianotiertem     5-Nitro-4-chlor        2-amino-l-phenol     und     2-(2'-Methoxy-4'-methyl)-phenylamino-5-          oxynaphthalin-7-sulfosäure    werden in 1000  Teilen Wasser neutral gelöst und mit 3,04  Gewichtsteilen     Cr20$    in Form von essigsaurem  Chrom unter Zusatz von 6,0 Gewichtsteilen    100      %        iger    Essigsäure in geschlossenem Ge  fäss längere Zeit auf Temperaturen zwischen       120-150o    erhitzt.

   Hierauf wird die ausge  schiedene Chromverbindung     abfiltriert    und  bei mässiger     Temperatur    getrocknet.



  Process for the production of a new azo dye. It has been found that a new valuable dye is obtained if the o-oxyazo dye, which is obtained by combining diazotized 5-nitro-4-chloro-2-amino-l-plieriol with 2- (2'-lyethoxy-4 ' -methyl) -phenyl-amirio-5-oxynaphthalene-7-sulfonic acid is formed, treated with chromium-releasing agents under pressure.

   The new dye is a dark blue powder, dissolves in dilute soda solution and caustic soda with blue color, in concentrated sulfuric acid with blue-violet color and dyes wool in greenish blue and cotton from a neutral glauber's salt bath in blue-gray tones with good fastness properties.



       Example: 5.58 parts by weight of the dye from dianotized 5-nitro-4-chloro-2-amino-1-phenol and 2- (2'-methoxy-4'-methyl) -phenylamino-5-oxynaphthalene-7-sulfonic acid are in 1000 parts of water dissolved neutrally and heated with 3.04 parts by weight of Cr20 $ in the form of acetic acid chromium with the addition of 6.0 parts by weight of 100% acetic acid in a closed vessel for a long time to temperatures between 120-150o.

   Then the separated chromium compound is filtered off and dried at a moderate temperature.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Farbstoffes, dadurch gekennzeichnet, dass man den o-Oxyazofarbstoff, welcher durch Vereinigen von dianotiertem 5-Nitro-4-chlor- 2-amino-l-phenol mit 2-(2'-Methoxy.4'-methyl)- phenylamino-5-oxynaphthalin-7-sulfosäure ent steht, mit Chrom abgebenden Mitteln unter Druck behandelt. Claim: Process for the production of a chromium-containing dye, characterized in that the o-oxyazo dye, which is obtained by combining dianotated 5-nitro-4-chloro-2-amino-1-phenol with 2- (2'-methoxy. 4'-methyl) - phenylamino-5-oxynaphthalene-7-sulfonic acid, treated with chromium-releasing agents under pressure. Der neue Farbstoff stellt ein dunkelblaues Pulver dar, löst sich in verdünnter Sodalösung und Natronlauge mit blauer, in konzentrierter Schwefelsäure mit blauvioletter Farbe auf und färbt Wolle in grünstichig blauen und Baumwolle aus neu tralem Glaubersalzbade in blaugrauen Tönen mit guten Echtheitseigenschaften. The new dye is a dark blue powder, dissolves in dilute soda solution and caustic soda with blue, in concentrated sulfuric acid with blue-violet color and dyes wool in greenish blue and cotton from neutral Glauber's salt bath in blue-gray tones with good fastness properties.
CH131259D 1927-04-23 1927-04-23 Process for the production of a new azo dye. CH131259A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH131259T 1927-04-23
CH128006T 1927-08-19

Publications (1)

Publication Number Publication Date
CH131259A true CH131259A (en) 1929-01-31

Family

ID=25711020

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131259D CH131259A (en) 1927-04-23 1927-04-23 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH131259A (en)

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