CH98795A - 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
CH98795A
CH98795A CH98795DA CH98795A CH 98795 A CH98795 A CH 98795A CH 98795D A CH98795D A CH 98795DA CH 98795 A CH98795 A CH 98795A
Authority
CH
Switzerland
Prior art keywords
dye
production
post
chromium plating
violet
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 CH98795A publication Critical patent/CH98795A/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
    • C09B41/00—Special methods of performing the coupling reaction
    • C09B41/001—Special methods of performing the coupling reaction characterised by the coupling medium
    • 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
    • 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
    • C09B63/00—Lakes
    • C09B63/005—Metal lakes of dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Description

  

  Verfahren zur Herstellung eines     Nachchromierungsfarbstoffes.       Es wurde gefunden, dass man einen neuen       Nachchromierungsfarbstoff    herstellen kann,  wenn man     diazotiertes        4-Nitro-2-aminophenol     mit 1-     Amino-5-oxynaphtaliri-7-sulfosäure    in  Gegenwart von     Calciumhydroxyd    kuppelt.

    Der neue Farbstoff bildet ein schwärzliches  Pulver, das sich in Wasser mit     violettblaiier     Farbe löst und Wolle aus saurem Bade in       braunvioletten    Farbtönen färbt, welche durch       Nachchromieren    in ein hervorragend licht-,       walk-    und     pottingechtes        grünstichiges    Tief  schwarz übergehen.  



       Beispiel:          24.    Teile     1-Amiclo-5-oxyriaphtalin-7-sulfo-          säure    werden in 150 Teilen Wasser mit 10       Teilen        Calciumliydroxyd    warm gelöst und  hei 0   bis 5   mit der eben kongosauer ge  stellten wässerigen     Suspension        der        Diazover-          bindiin.tr,    Hergestellt aus     15,5    Teilen     4-Nitro-          2-a.miclolihenol,    15 Teilen Salzsäure und  7 Teilen Nitrit in<B>300</B> Teilen Wasser, ver  setzt.

   Die sofort     eintretendo        Kupplung    ist in  etwa 20 Minuten unter Bildung eines .dun-         keln        Farbstoffbreies    fertig. Der Farbstoff  kann durch Ansäuern     undFiltrieren,    oder nach  abstumpfen der geringen Menge freien     Ätz-          kalkes    durch heisses Umsetzen mit Soda.,  Filtrieren vom     Calciumcarbonat    und Aassal  zen des Filtrates mit Kochsalz gewonnen  werden.



  Process for the production of a post-chromium plating dye. It has been found that a new post-chromium plating dye can be produced by coupling diazotized 4-nitro-2-aminophenol 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 violet-blue color and dyes wool from an acidic bath in brown-violet hues, which, after being chromed, turn into a greenish deep black, which is extremely light, millfast and potting.



       Example: 24th parts of 1-amiclo-5-oxyriaphthalene-7-sulfonic acid are dissolved in 150 parts of water with 10 parts of calcium hydroxide and hot 0 to 5 with the aqueous suspension of the diazo bindiin.tr which has just been prepared from 15.5 parts of 4-nitro-2-a.miclolihenol, 15 parts of hydrochloric acid and 7 parts of nitrite in 300 parts of water.

   The coupling, which occurs immediately, is ready in about 20 minutes with the formation of a dark pigment paste. The dye can be obtained by acidification and filtration or, after the small amount of free quick lime has been blunted, by hot reaction with soda, filtration of the calcium carbonate and carrion salts of the filtrate with common salt.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Naclichromierungsfarbstoffes, dadurch ge- hennzeichnet, dass man diazotiertes 4-Nitro- 2-amiuophenol mit 1-A.mino-5-öx)-naphta.Iin- 7-sulfosäure in Gegenwart von Calcium- hydroxyd kuppelt. PATENT CLAIM: A process for the production of a new naclichromation dye, characterized in that diazotized 4-nitro-2-amiuophenol is coupled with 1-amino-5-ox) -naphtha.in-7-sulfonic acid in the presence of calcium hydroxide . Der neue Farbstoff bildet ein schwärzliches Pulver, das sich in Wasser mit violettblauer Farbe löst und Wolle aus saurem Bade in braunvioletten Farbtönen färbt, welche durch Nachchromieren in ein hervorragend lieht-, walk- und pottingechtes grünstichiges Tiefschwarz übergehen. The new dye forms a blackish powder that dissolves in water with a violet-blue color and dyes wool from an acidic bath in brown-violet hues, which, when chromium-plating, turn into an excellent, lent-, mill- and potting-fast, green-tinged deep black.
CH98795D 1922-02-18 1922-02-18 Process for the production of a post-chromium plating dye. CH98795A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH98795A true CH98795A (en) 1923-04-16

Family

ID=4356658

Family Applications (1)

Application Number Title Priority Date Filing Date
CH98795D CH98795A (en) 1922-02-18 1922-02-18 Process for the production of a post-chromium plating dye.

Country Status (1)

Country Link
CH (1) CH98795A (en)

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