CH169952A - Process for the preparation of a chromable green monoazo dye. - Google Patents

Process for the preparation of a chromable green monoazo dye.

Info

Publication number
CH169952A
CH169952A CH169952DA CH169952A CH 169952 A CH169952 A CH 169952A CH 169952D A CH169952D A CH 169952DA CH 169952 A CH169952 A CH 169952A
Authority
CH
Switzerland
Prior art keywords
chromable
preparation
green
monoazo dye
blue
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH169952A publication Critical patent/CH169952A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 166222.    Verfahren zur Darstellung eines     chromierbaren    grünen     Nonoazofarbstofes.       Das vorliegende Verfahren     betrifft    die  Darstellung eines     chromierbaren    grünen     Mono-          azofarbatoffes    und ist dadurch gekennzeichnet,  dass man dianotiertes     4,6-Dichlor-o-aminophe-          nol    mit     1-Phenylamino-8-naphtol-4-sulfonsäure     kuppelt.  



  <I>Beispiel:</I>  17,8 kg     4,6-Dichlor-o-aminophenol    als  Chlorhydrat werden mit Wasser und Eis  angerührt, mit 6,9 kg Nitrit dianotiert und  alkalisch, essigsauer oder neutral mit     3l,5    kg       1-Phenylamino-8-naphtol-4-sulfonsäure    ge  kuppelt. Nach beendigter Reaktion wird er  wärmt, mit Salz gefällt, filtriert und ge  trocknet. Der     Farbstoff    stellt ein dunkles  Pulver dar. Er löst sich in Wasser mit blauer,  in verdünnter Natronlauge mit roter, in kon  zentrierter Schwefelsäure mit grauvioletter  und in Alkohol mit rotblauer Farbe.

   Auf    Wolle färbt er nach dem     Nachehromierungs-          oder        Monochromverfahren    ein hervorragend  echtes blaustichiges Grün.



      Additional patent to main patent no. 166222. Process for the preparation of a chromable green nonoazo dye. The present process relates to the preparation of a chromable green monoazo-carbate and is characterized in that dianotated 4,6-dichloro-o-aminophenol is coupled with 1-phenylamino-8-naphthol-4-sulfonic acid.



  <I> Example: </I> 17.8 kg 4,6-dichloro-o-aminophenol as chlorine hydrate are mixed with water and ice, dianotized with 6.9 kg nitrite and alkaline, acetic acid or neutral with 3l, 5 kg 1 -Phenylamino-8-naphthol-4-sulfonic acid coupled. When the reaction is complete, it is warmed, precipitated with salt, filtered and dried. The dye is a dark powder. It dissolves in water with blue, in dilute sodium hydroxide solution with red, in concentrated sulfuric acid with gray-violet and in alcohol with red-blue color.

   On wool, he dyes an excellent, true blue-tinged green using the post-alignment or monochrome process.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines chromier- baren, grünen Monoazofarbstoffes, dadurch gekennzeichnet, dass man dianotiertes 4,6- Dichlor-o-aminophenol mit 1-Phenylamino-8- naphtol-4-sulfonsäure kuppelt. Der Farbstoff stellt ein dunkles Pulver dar. Er löst sich in Wasser mit blauer, in verdünnter Natronlauge mit roter, in konzen trierter Schwefelsäure mit grauvioletter und in Alkohol mit rotblauer Farbe. PATENT CLAIM: Process for the preparation of a chromable, green monoazo dye, characterized in that dianotated 4,6-dichloro-o-aminophenol is coupled with 1-phenylamino-8-naphthol-4-sulfonic acid. The dye is a dark powder. It dissolves in water with blue, in dilute sodium hydroxide solution with red, in concentrated sulfuric acid with gray-violet and in alcohol with red-blue color. Auf Wolle färbt er nach dem Nachohromierungs- oder 1fIonochromverfahren ein hervorragend echtes blaustichiges Grün. On wool he dyes an excellent, true blue-tinged green using the post-earming or 1-ionochrome process.
CH169952D 1933-03-07 1933-03-07 Process for the preparation of a chromable green monoazo dye. CH169952A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH169952T 1933-03-07
CH166222T 1933-03-07

Publications (1)

Publication Number Publication Date
CH169952A true CH169952A (en) 1934-06-15

Family

ID=25718252

Family Applications (1)

Application Number Title Priority Date Filing Date
CH169952D CH169952A (en) 1933-03-07 1933-03-07 Process for the preparation of a chromable green monoazo dye.

Country Status (1)

Country Link
CH (1) CH169952A (en)

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