CH149894A - Process for the production of a metal-containing dye. - Google Patents

Process for the production of a metal-containing dye.

Info

Publication number
CH149894A
CH149894A CH149894DA CH149894A CH 149894 A CH149894 A CH 149894A CH 149894D A CH149894D A CH 149894DA CH 149894 A CH149894 A CH 149894A
Authority
CH
Switzerland
Prior art keywords
dye
cobalt
metal
treated
releasing agent
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 CH149894A publication Critical patent/CH149894A/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
    • C09B45/20—Monoazo compounds containing cobalt

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Description

  

  <B>Zusatzpatent</B> zum     Hauptpatent    Nr. 141535.    Verfahren zur Herstellung eines metallhaltigen Farbstoffes.    Es wurde gefunden, dass man einen neuen  metallhaltigen Farbstoff erhält,     wenn    man  den Farbstoff aus     diazotiertem        4-Nitro-          ?-amino-l-phenol    und     Resorcin    in einem  Medium, dessen     Px    nicht grösser als 10  ist, mit einem     kobaltabgebenden    Mittel be  handelt.  



  Der erhaltene Farbstoff stellt ein grün  schwarzes Pulver dar, das sich in Natron  lauge mit tiefroter und in     konz.    Schwefel  säure mit braungelber Farbe löst. Aus der  tiefrot gefärbten Lösung des Farbstoffes in       Zaponlack    erhält man auf Metallfolien  lebhafte scharlachrote     Anstriche    von sehr  guter     Lichtechtheit.     



       Beispiel:     2,74     Gewichtsteile    des Farbstoffes aus       diazotiertem        4-Nitro-2-amino-l-phenol    und       Resorcin    werden in 250 Teilen Wasser heiss  gelöst und mit einer 0,65 Teilen Kobalt ent  sprechenden Menge ameisensauren     Kobalts     einige Zeit am     Rückflusskühler    zum Sieden    erhitzt. Nach dem Erkalten der Reaktions  lösung     filtriert    man den ausgeschiedenen  Farbstoff ab, wäscht aus und     trocknet    bei  mässiger Temperatur.  



  Die Behandlung mit ameisensaurem Ko  balt     führt    zum gleichen Resultat, wenn man  dem Reaktionsgemisch Zusätze, wie zum Bei  spiel     Natriumformiat,        Natriumacetat,    Koch  salz oder     Natriumsulfit    zugibt.



  <B> Additional patent </B> to main patent no. 141535. Process for the production of a metal-containing dye. It has been found that a new metal-containing dye is obtained if the dye of diazotized 4-nitro-? -Amino-1-phenol and resorcinol is treated with a cobalt-releasing agent in a medium whose Px is not greater than 10.



  The dye obtained is a green black powder, which is in sodium hydroxide with deep red and in conc. Sulfuric acid dissolves with a brownish yellow color. The deep red solution of the dye in zapon varnish gives vivid scarlet paints of very good lightfastness on metal foils.



       Example: 2.74 parts by weight of the dye from diazotized 4-nitro-2-amino-1-phenol and resorcinol are dissolved in 250 parts of hot water and heated to boiling for some time with a 0.65 part of cobalt corresponding amount of cobalt form . After the reaction solution has cooled, the dyestuff which has separated out is filtered off, washed out and dried at a moderate temperature.



  Treatment with formic acid cobalt leads to the same result if additives such as sodium formate, sodium acetate, sodium chloride or sodium sulfite are added to the reaction mixture.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines metall haltigen Farbstoffes, dadurch gekennzeich net, dass man den Farbstoff aus diazotiertem 4-Nitro-2-amino-l-phenol und Resorcin in einem Medium, dessen PH nicht grösser als 10 ist, mit einem kobaltabgebenden Mittel behandelt. Der erhaltene Farbstoff stellt ein grün schwarzes Pulver dar, das sich in Natron lauge mit tiefroter und in konz. Schwefel säure mit braungelber Farbe löst. PATENT CLAIM: Process for the production of a metal-containing dye, characterized in that the dye consisting of diazotized 4-nitro-2-amino-1-phenol and resorcinol is treated with a cobalt-releasing agent in a medium whose pH is not greater than 10 . The dye obtained is a green black powder, which is in sodium hydroxide with deep red and in conc. Sulfuric acid dissolves with a brownish yellow color. Aus der tiefrot gefärbten Lösung des Farbstoffes in Zaponlack erhält man auf Metallfolien lebhafte scharlachrote Anstriche von sehr guter Lichtechtheit. UNTERANSPRÜCHE 1. Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man den Farb stoff in Gegenwart von organischen Zu- sätzen mit einem kobaltabgebenden Mittel behandelt. 2. Verfahren gemäss Patentanspruch, da durch gekennzeichnet, dass man den Farb stoff in Gegenwart von anorganischen Zu sätzen mit einem kobaltabgebenden Mittel behandelt. The deep red solution of the dye in zapon varnish gives vivid scarlet paints of very good lightfastness on metal foils. SUBClaims 1. Process according to claim, characterized in that the dye is treated in the presence of organic additives with a cobalt-releasing agent. 2. The method according to claim, characterized in that the dye is treated in the presence of inorganic additives with a cobalt-releasing agent.
CH149894D 1929-07-03 1929-07-03 Process for the production of a metal-containing dye. CH149894A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH149894T 1929-07-03
CH141535T 1929-07-03

Publications (1)

Publication Number Publication Date
CH149894A true CH149894A (en) 1931-09-30

Family

ID=25713828

Family Applications (1)

Application Number Title Priority Date Filing Date
CH149894D CH149894A (en) 1929-07-03 1929-07-03 Process for the production of a metal-containing dye.

Country Status (1)

Country Link
CH (1) CH149894A (en)

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