CH100860A - Process for the preparation of an acidic monoazo dye. - Google Patents

Process for the preparation of an acidic monoazo dye.

Info

Publication number
CH100860A
CH100860A CH100860DA CH100860A CH 100860 A CH100860 A CH 100860A CH 100860D A CH100860D A CH 100860DA CH 100860 A CH100860 A CH 100860A
Authority
CH
Switzerland
Prior art keywords
preparation
monoazo dye
red
acidic
blue
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 CH100860A publication Critical patent/CH100860A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G1/00—Cocoa; Cocoa products, e.g. chocolate; Substitutes therefor
    • A23G1/04—Apparatus specially adapted for manufacture or treatment of cocoa or cocoa products
    • A23G1/042—Manufacture or treatment of liquid, cream, paste, granule, shred or powder
    • 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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • 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
    • C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
    • C09B29/095—Amino naphthalenes
    • C09B29/0955—Amino naphthalenes containing water solubilizing groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Herstellung eines sauren     Nonoazofarbstoffes.       Es wurde gefunden, dass man einen  sauren     Monoazofarbstoff    herstellen kann,  wenn     man    die     Diazoverbindung    des     2-Amino-          4-sulfo-4'-methyl-1,1'-dipheiiylsulfons    mit       Äthyl-ss-naphtylamin    kuppelt. Der neue  Farbstoff bildet ein braunrotes Pulver, das  sich in Wasser mit blauroter, in konzen  trierter     Schwefelsäure    mit brauner Farbe  löst und Wolle aus essigsaurem Bade in  sehr gleichmässigen, lebhaften, vollen,     licht-          und    waschechten, blauroten Tönen färbt.  



       Beispiel:     35,6 Teile der     Diazoverbindung    des       ?-Amino    -4     -sulfo        -4'-methyl    -1,1'-     diphenylsul-          fons        (erhalteri    zum Beispiel durch Kon  densieren der     p-Toluolsulfinsäure    mit     1-          Clilor-2-nitrobenzol-4-sulfosätire,    Reduzieren  und     Diazotieren    des Kondensationsproduktes)  werden in 500 Teilen Wasser verteilt und  mit einer Lösung von 20,7 Teilen Äthyl-ss-         naphtylaminchlorhydrat    versetzt.

   Die Kupp  lung tritt sehr bald ein; sie wird durch vor  sichtiges Abstumpfen der freien Mineralsäure  gefördert. Der gebildete Farbstoff wird al  kalisch     ausgesalzen    und     abfiltriert.  



  Process for the preparation of an acidic nonoazo dye. It has been found that an acidic monoazo dye can be produced if the diazo compound of 2-amino-4-sulfo-4'-methyl-1,1'-dipheiiylsulfone is coupled with ethyl-ß-naphthylamine. The new dye forms a brownish-red powder that dissolves in water with blue-red, in concentrated sulfuric acid with brown color and colors wool from acetic acid bath in very even, lively, full, light- and washfast, blue-red tones.



       Example: 35.6 parts of the diazo compound of? -Amino -4 -sulfo -4'-methyl -1,1'-diphenyl sulfone (obtained, for example, by condensing p-toluenesulfinic acid with 1- Clilor-2-nitrobenzene- 4-sulfosätire, reducing and diazotizing the condensation product) are distributed in 500 parts of water and mixed with a solution of 20.7 parts of ethyl ss-naphthylamine chlorohydrate.

   The coupling occurs very soon; it is promoted by careful blunting of the free mineral acid. The dye formed is salted out and filtered off.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Monoazofarbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung des 2-Amino- 4-sulfo-4'-methyl-1,1'-diphenylsulfons mit Äthyl-ss-naphtylamin kuppelt. Der neue Farbstoff bildet ein braunrotes Pulver, das sich in Wasser mit blauroter, in konzentrier ter Schwefelsäure mit brauner Farbe löst und Wolle aus essigsaurem Bade in sehr gleich mässigen, lebhaften, vollen, licht- und wasch echten, blauroten Tönen färbt. Claim: Process for the preparation of an acidic monoazo dye, characterized in that the diazo compound of 2-amino-4-sulfo-4'-methyl-1,1'-diphenylsulfone is coupled with ethyl-β-naphthylamine. The new dye forms a brown-red powder that dissolves in water with blue-red color, in concentrated sulfuric acid with brown color, and colors wool from acetic acid bath in very even, lively, full, light and washable, blue-red tones.
CH100860D 1918-12-14 1922-04-29 Process for the preparation of an acidic monoazo dye. CH100860A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH90093T 1918-12-14
CH100860T 1922-04-29

Publications (1)

Publication Number Publication Date
CH100860A true CH100860A (en) 1923-08-16

Family

ID=25704111

Family Applications (1)

Application Number Title Priority Date Filing Date
CH100860D CH100860A (en) 1918-12-14 1922-04-29 Process for the preparation of an acidic monoazo dye.

Country Status (1)

Country Link
CH (1) CH100860A (en)

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