CH269392A - Process for the preparation of a vivid acidic dye of the anthraquinone series. - Google Patents

Process for the preparation of a vivid acidic dye of the anthraquinone series.

Info

Publication number
CH269392A
CH269392A CH269392DA CH269392A CH 269392 A CH269392 A CH 269392A CH 269392D A CH269392D A CH 269392DA CH 269392 A CH269392 A CH 269392A
Authority
CH
Switzerland
Prior art keywords
dye
blue
amino
good
lively
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag 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 Ag Sandoz filed Critical Ag Sandoz
Publication of CH269392A publication Critical patent/CH269392A/en

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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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/28—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups
    • C09B1/30—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated
    • C09B1/303—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated only sulfonated in the anthracene nucleus

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 255969.    Verfahren zur Herstellung eines lebhaften sauren Farbstoffes der     Anthraehinonreiheo       Das vorliegende Patent betrifft ein Ver  fahren zur Herstellung eines lebhaften sau  ren Farbstoffes der     Anthrachinonreihe    und  ist dadurch gekennzeichnet, dass man das  technische Gemisch eines Salzes der     1-Amino-          4-broin-antlirachinoii    \2.5- und     -2.8-clisulfonsäu-          ren    mit     2-Amino-1.2.3.4-tetrahydronaphthalin     kondensiert.  



  <I>Beispiel:</I>  22,5 Teile des technischen Gemisches der       Kaliumsalze    der     1-Ainino-4-bromanthrachinon-          2.5-    und     -2.8-disulfonsäuren,    enthaltend 1 Teil       (älaubersalz,    25 Teile 2     Amino-1.2.3.4-tetra-          hydronaphthalin,    8 Teile Natronlauge 30     %,     0,4 Teile Kupferpulver, 60 Teile Alkohol und  240 Teile Wasser werden so lange unter Rüh  ren auf 60-70  erhitzt, bis die Masse rein  blau geworden ist.

   Das Kondensationsprodukt  wird auf übliche Weise aufgearbeitet und lie  fert ein blaues     Farbstoffpulver,    das sich in  Wasser leicht mit leuchtend     grünstichig     blauer Farbe löst. Die Lösung des reinen  Farbstoffes in     konzentrierter        Schwefelsäure     ist farblos, beim Zusatz von wenig     p-Form-          aldehyd,    tritt ein Farbumschlag nach rot  stichig blau ein.  



  Der neue Farbstoff färbt tierische Fasern,  wie Wolle, Seide usw., sowie künstliche  Fasern, z. B. Nylon, in lebhaften     reinblauen     Tönen von guter Lichtechtheit, guten nassen       Echtheiten    und ist von gutem     Egalisierungs-          vermögen.     



  Man kann die Kondensation auch unter  Einleiten eines Stickstoffstromes vornehmen.  Die Mengen an     hydroaromatischem    Amin,    Alkali, Katalysator, Alkohol und Wasser kön  nen in weiten Grenzen variiert werden.



      Additional patent to the main patent No. 255969. Process for the production of a lively acidic dye of the anthraehinone serieso The present patent relates to a process for the production of a lively acidic dye of the anthraquinone series and is characterized in that the technical mixture of a salt of the 1-amino-4 -broin-antlirachinoii \ 2.5- and -2.8-clisulfonic acids condensed with 2-amino-1.2.3.4-tetrahydronaphthalene.



  <I> Example: </I> 22.5 parts of the technical mixture of the potassium salts of 1-ainino-4-bromoanthraquinone-2.5- and -2.8-disulfonic acids, containing 1 part (älaubersalz, 25 parts 2 amino-1.2.3.4- Tetrahydronaphthalene, 8 parts sodium hydroxide solution 30%, 0.4 part copper powder, 60 parts alcohol and 240 parts water are heated to 60-70 with stirring until the mass has turned pure blue.

   The condensation product is worked up in the usual way and delivers a blue dye powder which dissolves easily in water with a bright greenish blue color. The solution of the pure dye in concentrated sulfuric acid is colorless; if a little p-formaldehyde is added, the color changes to red and blue.



  The new dye dyes animal fibers such as wool, silk, etc., as well as artificial fibers, e.g. B. nylon, in vivid, pure blue tones of good lightfastness, good wet fastness properties and is of good leveling capacity.



  The condensation can also be carried out with the introduction of a stream of nitrogen. The amounts of hydroaromatic amine, alkali, catalyst, alcohol and water can be varied within wide limits.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines lebhaften sauren Farbstoffes der Anthrachinonreihe, dadurch gekennzeichnet, dass man das tech nische Gemisch eines Salzes der 1-Amino- 4-brom-anthrachinon-2.5- und -2.8-disulfon- sä Uren mit 2-Amino-1.2.3.4-tetrahy dronaphtha- lin kondensiert. Der neue Farbstoff stellt ein blaues Pul ver dar, das sich in Wasser leicht mit leuch tend grünstichig blauer Farbe löst. PATENT CLAIM Process for the production of a lively acidic dye of the anthraquinone series, characterized in that the technical mixture of a salt of 1-amino-4-bromo-anthraquinone-2.5 and -2.8-disulfonic acids with 2-amino-1.2. 3.4-tetrahydronaphthalene condensed. The new dye is a blue powder that easily dissolves in water with a bright greenish blue color. Die Lö sung des reinen Farbstoffes in konzentrierter Schwefelsäure ist farblos, beim Zusatz von wenig p-Formaldehyd tritt ein Farbumschlag nach rotstiehig blau ein. Der neue Farbstoff färbt tierische Fasern, wie Wolle, Seide usw., sowie künstliche Fasern, z. B. Nylon, in lebhaften reinblauen Tönen von guter Lichtechtheit, guten nassen Echtheiten und ist von gutem Egalisierungs- vermög en. Er besitzt die Formel. EMI0001.0044 The solution of the pure dye in concentrated sulfuric acid is colorless; if a little p-formaldehyde is added, the color changes to reddish blue. The new dye dyes animal fibers such as wool, silk, etc., as well as artificial fibers, e.g. B. nylon, in lively pure blue tones of good lightfastness, good wet fastness properties and is of good leveling capacity. He owns the formula. EMI0001.0044
CH269392D 1946-11-12 1946-11-12 Process for the preparation of a vivid acidic dye of the anthraquinone series. CH269392A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH255969T 1946-11-12
CH269392T 1946-11-12

Publications (1)

Publication Number Publication Date
CH269392A true CH269392A (en) 1950-06-30

Family

ID=25729953

Family Applications (1)

Application Number Title Priority Date Filing Date
CH269392D CH269392A (en) 1946-11-12 1946-11-12 Process for the preparation of a vivid acidic dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH269392A (en)

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