CH241905A - Process for the preparation of a sulfur-containing dye. - Google Patents

Process for the preparation of a sulfur-containing dye.

Info

Publication number
CH241905A
CH241905A CH241905DA CH241905A CH 241905 A CH241905 A CH 241905A CH 241905D A CH241905D A CH 241905DA CH 241905 A CH241905 A CH 241905A
Authority
CH
Switzerland
Prior art keywords
sulfur
solution
light green
containing dye
preparation
Prior art date
Application number
Other languages
German (de)
Inventor
Limited Imperial Ch Industries
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of CH241905A publication Critical patent/CH241905A/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
    • C09B47/00—Porphines; Azaporphines
    • C09B47/04—Phthalocyanines abbreviation: Pc
    • C09B47/08—Preparation from other phthalocyanine compounds, e.g. cobaltphthalocyanineamine complex
    • C09B47/24—Obtaining compounds having —COOH or —SO3H radicals, or derivatives thereof, directly bound to the phthalocyanine radical
    • C09B47/26—Amide radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

  

      Verfahren    zur Herstellung eines     schwefelhaltigen        Farbstoffes.       Gegenstand der Erfindung ist ein Ver  fahren zur Herstellung eines neuen schwefel  haltigen Farbstoffes, welches dadurch ge  kennzeichnet ist, dass     Kupferphthalocyanin-          tetra-(4)-sulfonylchlorid    mit     Thioharnstoff     erhitzt wird.  



  Der so erhaltene Farbstoff ist ein hell  grünes Pulver, das sich     in    heisser wässriger       Natriumsulfidlösung        unter    Bildung einer       bläulichgrauen    Lösung löst. Diese Lösung  erzeugt auf Baumwolle graue bis schwarze  Farbtöne, welche beim     Oxydierenlassen    an  der Luft nach hellgrün umschlagen     und    aus  gezeichnete     Echtheitseigenschaften    . aufwei  sen und insbesondere     nassecht    sind.  



  Die Erfindung sei durch das nach  stehende Beispiel erläutert. Die Teile bedeu  ten     Gewichtsteile.     



       Beispiel:     10     Teile        Kupferphthalocyanintetra-(4)-          sulfonylchlorid,    erhältlich -durch Erhitzen  von     Tetrakalium-gupferphthalocyanintetra-          (4)-sulfonat    mit     Phosphorpenta-chlorid    in  Nitrobenzol, werden während zwei Stunden         mit    40 Teilen     Thioharnstoff    bei 170-175  C  erhitzt. Die hellgrüne Schmelze wird hierauf  gekühlt und mit _ 500 Teilen siedendem  Wasser extrahiert. Der     zurückbleibende     grüne Festkörper wird nun     abfiltriert    und  mit Wasser gewaschen.

   Nach dem Trocknen  wird ein hellgrünes Pulver erhalten.



      Process for the preparation of a sulfur-containing dye. The invention relates to a method for producing a new sulfur-containing dye, which is characterized in that copper phthalocyanine tetra (4) sulfonyl chloride is heated with thiourea.



  The dye thus obtained is a light green powder which dissolves in hot aqueous sodium sulfide solution to form a bluish-gray solution. This solution produces gray to black color tones on cotton, which change to light green when left to oxidize in the air and have excellent fastness properties. aufwei sen and are especially wet-fast.



  The invention is illustrated by the example below. The parts mean parts by weight.



       Example: 10 parts of copper phthalocyanine tetra (4) sulfonyl chloride, obtainable by heating tetrapotassium copper phthalocyanine tetra (4) sulfonate with phosphorus penta chloride in nitrobenzene, are heated with 40 parts of thiourea at 170-175 ° C. for two hours. The light green melt is then cooled and extracted with 500 parts of boiling water. The remaining green solid is then filtered off and washed with water.

   After drying, a light green powder is obtained.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines schwefel haltigen Farbstoffes, dadurch gekennzeich net, dass Kupferphthalocyanin - tetra - (4) - sulfonylchlorid mit Thioharnstoff erhitzt wird. Der so erhaltene Farbstoff ist ein hell grünes Pulver, das sich in heisser wässriger N atriumsulfidlösung unter Bildung einer bläulichgrauen Lösung löst. PATENT CLAIM: Process for the production of a sulfur-containing dye, characterized in that copper phthalocyanine - tetra - (4) - sulfonyl chloride is heated with thiourea. The dye obtained in this way is a light green powder which dissolves in hot aqueous sodium sulfide solution to form a bluish-gray solution. Diese Lösung erzeugt auf Baumwolle graue bis schwarze Farbtöne, welche beim Oxydierenlassen an der Luft nach hellgrün umschlagen und aus gezeichnete Echtheitseigenschaften aufwei sen und insbesondere nassecht sind. This solution produces gray to black shades of color on cotton which, when allowed to oxidize in the air, turn to light green and show excellent fastness properties and are especially wetfast.
CH241905D 1943-06-07 1944-09-12 Process for the preparation of a sulfur-containing dye. CH241905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB241905X 1943-06-07

Publications (1)

Publication Number Publication Date
CH241905A true CH241905A (en) 1946-04-15

Family

ID=10207811

Family Applications (1)

Application Number Title Priority Date Filing Date
CH241905D CH241905A (en) 1943-06-07 1944-09-12 Process for the preparation of a sulfur-containing dye.

Country Status (1)

Country Link
CH (1) CH241905A (en)

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