CH202765A - Process for the preparation of a new, water-soluble dye of the anthraquinone series. - Google Patents

Process for the preparation of a new, water-soluble dye of the anthraquinone series.

Info

Publication number
CH202765A
CH202765A CH202765DA CH202765A CH 202765 A CH202765 A CH 202765A CH 202765D A CH202765D A CH 202765DA CH 202765 A CH202765 A CH 202765A
Authority
CH
Switzerland
Prior art keywords
preparation
water
new
soluble dye
anthraquinone series
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 CH202765A publication Critical patent/CH202765A/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
    • C09B3/00—Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/02—Benzathrones
    • C09B3/06—Preparation from starting materials already containing the benzanthrone nucleus

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 199192.    Verfahren zur Darstellung eines neuen, wasserlöslichen Farbstoffes  der     Anthrachinonreihe.       Das vorliegende Verfahren betrifft die  Darstellung eines neuen wasserlöslichen Farb  stoffes der     Anthrachinonreihe    und ist da  durch gekennzeichnet, dass man     1-(Bz-l-benz-          anthronyl)-aminoanthrachinon    mit Schwefel  säure behandelt.  



  <I>Beispiel:</I>  5 Teile     1-(Bz-l-benzanthronyl)-amino-          anthrachinon    werden in 35     Teilen        Oleum     12 % gelöst und bei 20 bis 40   gehalten, bis  eine Probe wasserlöslich geworden ist. Der  ' isolierte Farbstoff enthält zwei     Sulfogruppen     und färbt Wolle in gelben Tönen von guter  Echtheit an. Er stellt ein rotbraunes Pulver    dar, das sich in Schwefelsäure mit bräunlich  roter Farbe löst.



  <B> Additional patent </B> to main patent no. 199192. Process for the preparation of a new, water-soluble dye of the anthraquinone series. The present process relates to the preparation of a new water-soluble dye of the anthraquinone series and is characterized in that 1- (Bz-l-benz-anthronyl) -aminoanthraquinone is treated with sulfuric acid.



  <I> Example: </I> 5 parts 1- (Bz-l-benzanthronyl) -amino-anthraquinone are dissolved in 35 parts oleum 12% and kept at 20 to 40 until a sample has become water-soluble. The 'isolated dye contains two sulfo groups and dyes wool in yellow shades of good fastness. It is a red-brown powder that dissolves in sulfuric acid with a brownish red color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines wasser löslichen Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man 1- (Bz- 1- benzanthronyl) - aminoanthrachinon mit Schwefelsäure behandelt. Der neue Farbstoff enthält zwei Sulfo- gruppen und stellt ein rotbraunes Pulver dar, das sich in Schwefelsäure mit bräunlichroter Farbe löst. Er färbt Wolle in gelben Tönen von guter Echtheit an. PATENT CLAIM: Process for the preparation of a water-soluble dye of the anthraquinone series, characterized in that 1- (Bz- 1- benzanthronyl) -aminoanthraquinone is treated with sulfuric acid. The new dye contains two sulfo groups and is a red-brown powder that dissolves in sulfuric acid with a brownish-red color. It stains wool in yellow shades of good fastness.
CH202765D 1937-07-13 1937-07-13 Process for the preparation of a new, water-soluble dye of the anthraquinone series. CH202765A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH199192T 1937-07-13
CH202765T 1937-07-13

Publications (1)

Publication Number Publication Date
CH202765A true CH202765A (en) 1939-01-31

Family

ID=25723242

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202765D CH202765A (en) 1937-07-13 1937-07-13 Process for the preparation of a new, water-soluble dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH202765A (en)

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