CH148368A - Process for the production of a new metal-containing dye. - Google Patents

Process for the production of a new metal-containing dye.

Info

Publication number
CH148368A
CH148368A CH148368DA CH148368A CH 148368 A CH148368 A CH 148368A CH 148368D A CH148368D A CH 148368DA CH 148368 A CH148368 A CH 148368A
Authority
CH
Switzerland
Prior art keywords
chromium
dye
containing dye
production
blue
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 CH148368A publication Critical patent/CH148368A/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)
  • Chemical Treatment Of Metals (AREA)
  • Coloring (AREA)
  • Paper (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.    145447.    Verfahren zur Herstellung eines neuen metallhaltigen Farbstoffes.    Es wurde gefunden,     dass    man einen neuen  chromhaltigen Farbstoff erhält, wenn man  den     Azofarbstoff    aus     diazotiertem        2-Amino-          1-phenol    und     1-Acetamino-7-naphtol,    alkalisch  gekuppelt, in Gegenwart von     Pyridin    mit  chromabgebenden Mitteln behandelt.  



  Der erhaltene     chronahaltige    Farbstoff stellt  ein dunkelblaues Pulver dar, das sich in  Wasser oder Natronlauge nur sehr schwer,  in Alkohol mit blauer und in konzentrierter  Schwefelsäure mit violetter Farbe löst. Ans  der Lösung des Farbstoffes in     Zapon-    oder       Acetylzelluloselack    erhält man auf Metall  folien     rotstichigblaue    Überzüge.

      <I>Beispiel:</I>    6,42 Gewichtsteile des     Farbstoffes    aus       2-Amino-I-phenol    und     1-Acetamino-7-naphtol,     in alkalischer Lösung gekuppelt, worden in  200 Teilen     Pyridin    gelöst und mit<B>6</B> Teilen  ameisensaurem Chrom einige Stunden am       Rückflusskühler    zum Sieden erhitzt. Hierauf  filtriert man die tiefrotblaue Lösung von  etwas ausgeschiedenem     Ohromschlamm    ab  und verdampft im Vakuum zur Trockne.

      Als     ebromabgebende    Mittel können statt       Chromformiat    andere, wie zum Beispiel Chrom  acetat, verwendet werden; die     Chromierung     kann ferner in Gegenwart geeigneter Zusätze,  wie zum Beispiel der     Alkalisalze    organischer  Säuren durchgeführt werden.



  Additional patent to main patent No. 145447. Process for the production of a new metal-containing dye. It has been found that a new chromium-containing dye is obtained if the azo dye consisting of diazotized 2-amino-1-phenol and 1-acetamino-7-naphthol, coupled with an alkaline solution, is treated with chromium donating agents in the presence of pyridine.



  The chromium-containing dye obtained is a dark blue powder that dissolves very difficultly in water or sodium hydroxide solution, in alcohol with a blue color and in concentrated sulfuric acid with a violet color. By dissolving the dye in zapon or acetyl cellulose lacquer, reddish blue coatings are obtained on metal foils.

      <I> Example: </I> 6.42 parts by weight of the dye from 2-amino-1-phenol and 1-acetamino-7-naphthol, coupled in an alkaline solution, dissolved in 200 parts of pyridine and with <B> 6 < / B> Parts of formic acid chromium heated to the boil on the reflux condenser for a few hours. The deep red-blue solution is then filtered off from some of the excreted ear mud and evaporated to dryness in vacuo.

      Instead of chromium formate, other ebroma-releasing agents, such as chromium acetate, can be used; the chromating can also be carried out in the presence of suitable additives, such as, for example, the alkali metal salts of organic acids.

Claims (1)

PATENTANSPRUCH- Verfahren zur Herstellung eines neuen chrombaltigen Farbstoffes, dadurch gekenn zeichnet, dass man den Azofarbstoff aus dia- zotiertem2-Amino-l-phetiol und 1-Acetamitio- 7-iiaphtol, alkalisch gekuppelt, in Gegenwart von Pyridin mit chromabgebenden Mitteln behandelt. PATENT CLAIM process for the production of a new chromium-containing dye, characterized in that the azo dye from diazotized 2-amino-1-phetiol and 1-acetamitio-7-iiaphtol, coupled with alkaline, treated in the presence of pyridine with chromium donating agents. Der erhaltene chromhaltige Farbstoff stellt ein dunkelblaues Pulver dar, das sich in Was ser oder Natronlauge nur sehr schwer, in<B>Al-</B> kohol mit blauer und in konzentrierter Schwe felsäure mit violetter Farbe löst. Aus der Lösung des Farbstoffes in Zapon- oder Acetyl- zelluloselack erhält man auf Metallfolien rot- stichigblaue Überzüge. The chromium-containing dye obtained is a dark blue powder that dissolves only with great difficulty in water or sodium hydroxide solution, in <B> Al </B> alcohol with blue and in concentrated sulfuric acid with a violet color. From the solution of the dye in zapon or acetyl cellulose lacquer, reddish-blue coatings are obtained on metal foils.
CH148368D 1929-06-08 1929-06-08 Process for the production of a new metal-containing dye. CH148368A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH148368T 1929-06-08
CH145447T 1929-06-08

Publications (1)

Publication Number Publication Date
CH148368A true CH148368A (en) 1931-07-15

Family

ID=25714698

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148368D CH148368A (en) 1929-06-08 1929-06-08 Process for the production of a new metal-containing dye.

Country Status (1)

Country Link
CH (1) CH148368A (en)

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