CH112532A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH112532A
CH112532A CH112532DA CH112532A CH 112532 A CH112532 A CH 112532A CH 112532D A CH112532D A CH 112532DA CH 112532 A CH112532 A CH 112532A
Authority
CH
Switzerland
Prior art keywords
yellow
new dye
acid
production
parts
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 CH112532A publication Critical patent/CH112532A/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
    • 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
    • C09B45/38—Preparation from compounds with —OH and —COOH adjacent in the same ring or in peri position
    • C09B45/40—Chromium compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines neuen Farbstoffes.    Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man die dianotierte       3-Aminociaphthalin-1,8-dikarbonsäure    mit     Sa-          licylsäure    kuppelt. Der neue     Farbstoff    bildet  ein gelbes, kristallinisches 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, neingelbe Töne.  



  <I>Beispiel:</I>  10,6 Teile     3-Aminonaphthalin-1,8-dikarbon-          säureanhydrid    werden mit Hilfe von 10 Tei  len     30 /oiger    Natronlauge und 150 Teilen  Wasser heiss gelöst, nach Abkühlung auf  zirka 20   C mit 30 Teilen Eis und 25 Tei  len 30      /oiger    Salzsäure versetzt. Es scheidet  sich die     3-Aminonaphthalin-1,8-dikarbonsäure     aus, welche auf Zusatz von 3,5 Teilen Nitrit  zunächst in Lösung geht, um bald wieder    als     Diazoverbindung    auszufallen. Die so er  haltene Suspension wird in eine alkalische  Lösung von 6,9 Teilen     Salicylsäure    einlaufen  gelassen.

   Nach beendeter     Kupplung    wird das  überschüssige Alkali mit Säure abgestumpft,  der     Farbstoff    aasgesalzen, filtriert und ge  trocknet.



  Process for the production of a new dye. It has been found that a new dye is obtained if the dianotated 3-aminociaphthalene-1,8-dicarboxylic acid is coupled with salicylic acid. The new dye forms a yellow, crystalline powder that dissolves in water with a yellow color and 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, neutral yellow tones.



  <I> Example: </I> 10.6 parts of 3-aminonaphthalene-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 20 ° C. at 30 ° C. Parts of ice and 25 parts of 30% hydrochloric acid are added. The 3-aminonaphthalene-1,8-dicarboxylic acid separates out, which upon the 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 6.9 parts of salicylic acid.

   After the coupling has ended, the excess alkali is blunted with acid, the dye is washed off with ash, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man die dianotierte 3-Aminoriaphthalin-1,8-dikar- bonsäure mit Salicylsäure kuppelt. Der neue Farbstoff bildet ein gelbes, kristallinisches 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, neingelbe Töne. PATENT CLAIM: Process for the production of a new dye, characterized in that the dianotated 3-aminoriaphthalene-1,8-dicarboxylic acid is coupled with salicylic acid. The new dye forms a yellow, crystalline powder that dissolves in water with a yellow color and 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, neutral yellow tones.
CH112532D 1923-12-28 1924-08-16 Process for the production of a new dye. CH112532A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH110287T 1923-12-28
CH112532T 1924-08-16

Publications (1)

Publication Number Publication Date
CH112532A true CH112532A (en) 1925-11-02

Family

ID=25707676

Family Applications (1)

Application Number Title Priority Date Filing Date
CH112532D CH112532A (en) 1923-12-28 1924-08-16 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH112532A (en)

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