CH180298A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH180298A
CH180298A CH180298DA CH180298A CH 180298 A CH180298 A CH 180298A CH 180298D A CH180298D A CH 180298DA CH 180298 A CH180298 A CH 180298A
Authority
CH
Switzerland
Prior art keywords
new dye
production
amino
blue
dye
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 CH180298A publication Critical patent/CH180298A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Zusatzpatent    zum     Hauptpatent    Nr. 178224.    Verfahren zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man     diazotiertes        2-          linino-5-nitrophenylbenzylsulf    an in saurem  Medium mit der     2-Amino-8-oxynaphthalin-          6-sulfonsäure    vereinigt. Der neue Farbstoff  bildet ein dunkles Pulver, das sich in Wasser       init-    blauer Farbe löst. Es färbt Wolle aus       siturem    Bade in echten blauen Farbtönen an.

           Beispiel:     292 Teile     2-Amino-5-nitrophenylbenzyl-          sulfon    werden in konzentrierter Schwefel  siiitre mit 69 Teilen     Natriumnitrit    dianotiert       und    die Lösung in Eiswasser gegossen.

   In  diese     Diazolösung    respektive Suspension trägt       riiaii    eine neutrale Lösung von 289 Teilen     2-          Ami        no-8-oxy        naplithalin-6-sul    f     onsäui-e    ein und    beschleunigt die Reaktion gegebenenfalls  durch Zugabe von     Natriumacetat.    Der  Farbstoff wird nun     abfiltriert    und ausge  waschen.



      Additional patent to the main patent No. 178224. Process for the production of a new dye. It has been found that a new dye is obtained if diazotized 2-linino-5-nitrophenylbenzylsulfonate is combined with 2-amino-8-oxynaphthalene-6-sulfonic acid in an acidic medium. The new dye forms a dark powder that dissolves in water with a blue color. It stains wool from natural bathing in real blue shades.

           Example: 292 parts of 2-amino-5-nitrophenylbenzylsulfone are dianotized in concentrated sulfuric acid with 69 parts of sodium nitrite and the solution is poured into ice water.

   In this diazo solution or suspension riiaii carries a neutral solution of 289 parts of 2-amino-8-oxy naplithalin-6-sulf onsäui-e and accelerates the reaction if necessary by adding sodium acetate. The dye is then filtered off and washed out.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man dianotiertes 2-Amino-5-nitrophenyl- benzylsulfon in saurem Medium mit der 2 Amino-8-oxynaphthalin-6-sulfonsäure ver einigt. Der neue Farbstoff bildet ein blaues Pulver, das sich in Wasser mit blauer Farbe löst. Es färbt Wolle aus saurem Bade in echten blauen Farbtönen an. PATENT CLAIM Process for the production of a new dye, characterized in that dianotated 2-amino-5-nitrophenyl-benzylsulfone is combined with 2-amino-8-oxynaphthalene-6-sulfonic acid in an acidic medium. The new dye forms a blue powder that dissolves in water with a blue color. It stains wool from an acid bath in real blue shades.
CH180298D 1934-03-24 1934-03-24 Process for the production of a new dye. CH180298A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH178224T 1934-03-24
CH180298T 1934-03-24

Publications (1)

Publication Number Publication Date
CH180298A true CH180298A (en) 1935-10-15

Family

ID=25720092

Family Applications (1)

Application Number Title Priority Date Filing Date
CH180298D CH180298A (en) 1934-03-24 1934-03-24 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH180298A (en)

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