CH116728A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH116728A
CH116728A CH116728DA CH116728A CH 116728 A CH116728 A CH 116728A CH 116728D A CH116728D A CH 116728DA CH 116728 A CH116728 A CH 116728A
Authority
CH
Switzerland
Prior art keywords
acid
yellow
new dye
production
orange
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 CH116728A publication Critical patent/CH116728A/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
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/12—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group of the benzene series
    • C09B29/14—Hydroxy carboxylic acids
    • 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
    • C09B29/0014—Monoazo dyes prepared by diazotising and coupling from diazotized aminonaphthalene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Filters (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Description

  

      Zusatzpateat    zum     Hauptpatent    Nr. 110287.         Yerfaluen    zur Herstellung     eines        neuen    Farbstoffes.    Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man die     diazotierte          3-Aniinonaphthalin-1,8-dikarbonsäure    mit       o-Kresotinsäure    kuppelt. Der neue Farbstoff  bildet ein orangegelbes Pulver, das sich in  Wasser mit gelber, in Schwefelsäure mit  orangegelber Farbe löst.

   Er färbt Wolle aus  saurem Bade in gelben Tönen, welche beim       Nachchromieren    sehr echt, insbesondere     pot-          tingecht    werden. Im Chromdruck erzeugt er  echte, gelbe Töne.    <I>Beispiel:</I>    10,6 Teile     3-Amirionaphthaliri-1,8-dikarbon-          säureanhydrid    werden mit Hilfe von 10 Teilen       30        %        iger        Natronlauge        und        150        Teilen        Wasser     heiss gelöst,

   nach Abkühlung auf zirka 200       mit        30        Teilen        Eis        und        25        Teilen        30        %        igei-          Salzsäure    versetzt. Es scheidet sich die     3-Anii-          nonaphthalin-1,8-dikarbonsäure    aus, welche auf  Zusatz von 3,5 Teilen Nitrit zunächst in  Lösung geht, um bald wieder als Diazover-         bindung    auszufallen.

   Die so erhaltene Suspen  sion wird in eine alkalische Lösung von 7,6  Teilen     o-Kresotinsäure    einlaufen gelassen.  Nach beendeter     Kupplung    wird das über  schüssige Alkali mit Säure abgestumpft, der  Farbstoff     ausgesalzen,    filtriert und getrocknet.



      Additional patent to main patent no. 110287. Yerfaluen for the production of a new dye. It has been found that a new dye is obtained if the diazotized 3-aniinonaphthalene-1,8-dicarboxylic acid is coupled with o-cresotinic acid. The new dye forms an orange-yellow powder that dissolves in water with a yellow color, in sulfuric acid with an orange-yellow color.

   It dyes wool from an acid bath in yellow tones, which become very real when chromium-plating, especially pot-proof. In chrome printing, it creates real, yellow tones. <I> Example: </I> 10.6 parts of 3-Amirionaphthaliri-1,8-dicarboxylic acid anhydride are dissolved with the help of 10 parts of 30% sodium hydroxide solution and 150 parts of water,

   after cooling to about 200, 30 parts of ice and 25 parts of 30% strength hydrochloric acid are added. The 3-aninonaphthalene-1,8-dicarboxylic acid separates out, which, upon addition of 3.5 parts of nitrite, initially dissolves and soon precipitates again as a diazo compound.

   The suspension thus obtained is allowed to run into an alkaline solution of 7.6 parts of o-cresotinic acid. When the coupling is complete, the excess alkali is blunted with acid, and the dye is salted out, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man die diazotierte 3-Aminonaphthalin-1,8-dikar- bonsäure mit o-Kresotinsäure kuppelt. Der neue Farbstoff bildet ein orangegelbes Pulver, das sich in Wasser mit gelber, in Schwefelsäure mit orangegelber Farbe löst. Er färbt Wolle aus saurem Bade in gelben Tönen, welche beim Nachchromieren sehr echt, insbesondere pottingecht werden. Im Chromdruck erzeugt er echte, gelbe Töne. PATENT CLAIM: Process for the production of a new dye, characterized in that the diazotized 3-aminonaphthalene-1,8-dicarboxylic acid is coupled with o-cresotinic acid. The new dye forms an orange-yellow powder that dissolves in water with a yellow color, in sulfuric acid with an orange-yellow color. It dyes wool from acid baths in yellow tones, which become very real when chrome-plated, especially potting-proof. In chrome printing, it creates real, yellow tones.
CH116728D 1923-12-28 1924-09-16 Process for the production of a new dye. CH116728A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH110287T 1923-12-28
CH116728T 1924-09-16

Publications (1)

Publication Number Publication Date
CH116728A true CH116728A (en) 1926-09-16

Family

ID=25707677

Family Applications (1)

Application Number Title Priority Date Filing Date
CH116728D CH116728A (en) 1923-12-28 1924-09-16 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH116728A (en)

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