CH99197A - Process for the production of a post-chromium plating dye. - Google Patents

Process for the production of a post-chromium plating dye.

Info

Publication number
CH99197A
CH99197A CH99197DA CH99197A CH 99197 A CH99197 A CH 99197A CH 99197D A CH99197D A CH 99197DA CH 99197 A CH99197 A CH 99197A
Authority
CH
Switzerland
Prior art keywords
dye
chromium plating
post
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 CH99197A publication Critical patent/CH99197A/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
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     Nachehromierungsfarbstoffes.       Es     wurde    gefunden,     ,dass    man einen neuen       Nachchromierungsfarbstoff    herstellen kann;  wenn man     diazotiertes        6-Nitro-4-methyl-2-          aminophenol    mit     1-Amino-5-oxynaphtalin-7-          sulfosäure    in Gegenwart von     Calcium-          hydroxyd    kuppelt.

   Der neue Farbstoff bildet  ein schwärzliches Pulver, das sich in Wasser  mit blauer Farbe löst und in Wolle aus sau  rem Bade in     rötlichdunkelblauen    Farbtönen  färbt, welche durch     Nmhchromieren    in ein  hervorragend licht-, walk- und     pottin.gechtes     Blauschwarz übergehen.  



  <I>Beispiel:</I>  24 Teile     1-Amido--5-oxynaphtalin-7-sulfo-          säure    werden in 150 Teilen Wasser mit 10  Teilen     Calciumhydroxyd    warm gelöst und  bei 0   bis 5       mit,der    eben kongosauer gestell  ten wässerigen Suspension der     Diazoverbin-          dung,    hergestellt aus 16,8 Teilen     6-Nitro-          4-methyl-2-aminophenol,    15 Teilen Salzsäure  und 7 Teilen Nitrit in 300 Teilen Wasser,  versetzt. Die sofort eintretende Kupplung  ist in etwa 20 Minuten unter Bildung eines    dunklen     Farbstoffbreies    fertig.

   Der Farb  stoff kann .durch Ansäuern und Filtrieren,  oder nach Abstumpfen der ,geringen Menge  freien Ätzkalkes durch heisses Umsetzen mit  Soda, Filtrieren vom     Calciumkarbonat    und       Aussalzen    des Filtrates     mit    Kochsalz gewon  nen werden.



  Process for the production of a post-homologation dye. It has been found that a new post-chromium plating dye can be produced; when diazotized 6-nitro-4-methyl-2-aminophenol is coupled with 1-amino-5-oxynaphthalene-7-sulfonic acid in the presence of calcium hydroxide.

   The new dye forms a blackish powder that dissolves in water with a blue color and dyes in wool from an acidic bath in reddish-dark blue hues, which, when chromium-plating, turn into a blue-black that is excellently light-, mill- and potty-fast.



  <I> Example: </I> 24 parts of 1-amido - 5-oxynaphthalene-7-sulfonic acid are dissolved in 150 parts of water with 10 parts of warm calcium hydroxide and, at 0 to 5, with the aqueous suspension just made Congo the diazo compound, prepared from 16.8 parts of 6-nitro-4-methyl-2-aminophenol, 15 parts of hydrochloric acid and 7 parts of nitrite in 300 parts of water. Immediate coupling is complete in about 20 minutes with the formation of a dark pulp.

   The dye can be obtained by acidifying and filtering, or after dulling the small amount of free quick lime by reacting it with hot soda, filtering the calcium carbonate and salting out the filtrate with common salt.

Claims (1)

PATENTANSPRUC13 Verfahren zur Herstellung eines neuen Nachchromierungsfarbstoffes, dadurch ge kennzeichnet, dass -man @diazotiertes 6-Nitro- 4-methyl-2-aminophenol mit 1-Amino-5-oxy- naphtalin-7-sulfosäure in Gegenwart von Calciumhydroxyd kuppelt. PATENTANSPRUC13 Process for the preparation of a new chromium plating dye, characterized in that -man @diazotized 6-nitro-4-methyl-2-aminophenol with 1-amino-5-oxynaphthalene-7-sulfonic acid in the presence of calcium hydroxide. Der neue Farb stoff bildet ein schwärzliches Pulver, das sich in Wasser :mit blauer Farbe löst und Wolle aus saurem Bade in rötlichdunkelblauen Farbtönen färbt, welche ,durch Nachchromie- ren in ein hervorragend licht-, walk- und pot- tingechtes Blauschwarz übergehen. The new dye forms a blackish powder that dissolves in water: it dissolves in blue and dyes wool from an acid bath in reddish-dark blue hues, which, after being chromed, turn into an excellent light-, whip- and pot-fast blue-black.
CH99197D 1922-02-18 1922-02-18 Process for the production of a post-chromium plating dye. CH99197A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH98795T 1922-02-18
CH99197T 1922-02-18

Publications (1)

Publication Number Publication Date
CH99197A true CH99197A (en) 1923-05-16

Family

ID=25705453

Family Applications (1)

Application Number Title Priority Date Filing Date
CH99197D CH99197A (en) 1922-02-18 1922-02-18 Process for the production of a post-chromium plating dye.

Country Status (1)

Country Link
CH (1) CH99197A (en)

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