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CH243000A - Process for the preparation of a copper-compatible polyazo dye. - Google Patents

Process for the preparation of a copper-compatible polyazo dye.

Info

Publication number
CH243000A
CH243000A CH243000DA CH243000A CH 243000 A CH243000 A CH 243000A CH 243000D A CH243000D A CH 243000DA CH 243000 A CH243000 A CH 243000A
Authority
CH
Switzerland
Prior art keywords
dye
copper
compatible
preparation
polyazo dye
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH243000A publication Critical patent/CH243000A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/38—Trisazo dyes ot the type
    • C09B35/44—Trisazo dyes ot the type the component K being a hydroxy amine
    • C09B35/46—Trisazo dyes ot the type the component K being a hydroxy amine the component K being an amino naphthol
    • C09B35/466—D being derived from diaminodiarylurea

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 240993.    Verfahren zur Herstellung eines kupferbaren     Polyazofarbstoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines kupferbaren       Polyazofarbstoffes.    Das Verfahren ist da  durch gekennzeichnet,     dass.    man     tetrazotier-          ten        4,4'-Diamino-2,2',5,

  5'-tetramethoxy-di-          phenylharnAtoff    mit 1     Mol    des durch saure  Kupplung von dianotierter     2-Amino-benzoe-          säure    mit     2-Amino-5-oxy-naphthalin-7-sul-          fonsäure        erhaltenen        Monoazofarbstoffes,    und  mit 1     Mol        1-Amino-8-ogy-naphthalin-2,4-di-          sulfonsäure    kuppelt.  



  Der neue     Trisazofarbstoff    stellt ein  dunkles, bronzierendes Pulver dar, das sich  in Wasser mit blauer, in konzentrierter  Schwefelsäure mit     grünstichig    blauer Farbe  löst. Er färbt Baumwolle und Fasern     aus    re  generierter     Cellulose    in marineblauen Tönen.  Nass- und     Lichtechtheiten    werden durch  Nachbehandeln mit Kupfersalzen verbessert.

    
EMI0001.0023     
  
    n.,            zotiert    und in Gegenwart von     Bicarbonat     halbseitig mit<B>38,7</B> Teilen des     Monoazofarb-          stoffes,    erhalten durch saure Kupplung von  dianotierter     2-Aminobenzoesäure    mit     2-Amino-          5-oxy-naphthalin-7-sulfonsäure,    gekuppelt.

    Zur     Zwischenverbindung    lässt man alsdann       eine        wässrige    Lösung von<B>31,9</B> Teilen       1-Amino    -8-     oxy-naphthalin-2,4-disulf        onsäure,     20 Teilen Soda und<B>150</B> Teilen     Pyridin     fliessen. Nachdem die Kupplung durch mehr  stündiges Rühren bei Raumtemperatur be  endet worden ist, wird der Farbstoff bei 40   mit Kochsalz gefällt,     abfiltriert    und ge  trocknet.



  <B> Additional patent </B> to main patent no. 240993. Process for the production of a copper-compatible polyazo dye. The present patent relates to a process for the preparation of a copperable polyazo dye. The process is characterized in that. Tetrazotized 4,4'-diamino-2,2 ', 5,

  5'-tetramethoxy-diphenylurAtoff with 1 mol of the monoazo dye obtained by acid coupling of dianotated 2-amino-benzoic acid with 2-amino-5-oxy-naphthalene-7-sulfonic acid, and with 1 mol of 1-amino -8-ogy-naphthalene-2,4-disulfonic acid couples.



  The new trisazo dye is a dark, bronzing powder that dissolves in water with a blue color, in concentrated sulfuric acid with a greenish blue color. It dyes cotton and fibers made from regenerated cellulose in navy blue tones. Wet and light fastness properties are improved by post-treatment with copper salts.

    
EMI0001.0023
  
    n., zotiert and in the presence of bicarbonate on one side with 38.7 parts of the monoazo dye, obtained by acid coupling of dianotated 2-aminobenzoic acid with 2-amino-5-oxy-naphthalene-7-sulfonic acid , coupled.

    An aqueous solution of 31.9 parts of 1-amino-8-oxy-naphthalene-2,4-disulphonic acid, 20 parts of soda and 150 parts is then allowed to form the intermediate compound Pyridine flow. After the coupling has been completed by stirring for more hours at room temperature, the dye is precipitated with sodium chloride at 40, filtered off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer baren Polyazofarbstoffes, dadurch gekenn zeichnet, dass man tetrazotierten 4,4'-Diamino- 2,2',5,5'-tetramethoxv-diphenvlharnstoff mit EMI0001.0043 AIonoazofarbstoffes und mit 1 Mol 1-Amino-8- o--v-y-naplithalin-2,4-disulfonsäure kuppelt. Der neue Trisazofarbstoff stellt ein dunkles, bronzierendes Pulver dar, das sich 5 in Wasser mit blauer, in konzentrierter Schwefelsäure mit grünstichig blauer Farbe löst. PATENT CLAIM: Process for the production of a copper-ble polyazo dye, characterized in that tetrazotized 4,4'-diamino-2,2 ', 5,5'-tetramethoxv-diphenylurea with EMI0001.0043 Aonoazo dye and with 1 mol of 1-amino-8- o - v-y-naplithalin-2,4-disulfonic acid couples. The new trisazo dye is a dark, bronzing powder that dissolves in water with a blue color, in concentrated sulfuric acid with a greenish blue color. Er färbt Baumwolle und Fasern aus re generierter Cellulose in marineblauen Tönen. It dyes cotton and fibers made from regenerated cellulose in navy blue tones.
CH243000D 1944-04-21 1944-04-21 Process for the preparation of a copper-compatible polyazo dye. CH243000A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH240993T 1944-04-21
CH243000T 1944-04-21

Publications (1)

Publication Number Publication Date
CH243000A true CH243000A (en) 1946-06-15

Family

ID=25728565

Family Applications (1)

Application Number Title Priority Date Filing Date
CH243000D CH243000A (en) 1944-04-21 1944-04-21 Process for the preparation of a copper-compatible polyazo dye.

Country Status (1)

Country Link
CH (1) CH243000A (en)

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