CH159073A - Process for the preparation of a water-soluble dye. - Google Patents

Process for the preparation of a water-soluble dye.

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Publication number
CH159073A
CH159073A CH159073DA CH159073A CH 159073 A CH159073 A CH 159073A CH 159073D A CH159073D A CH 159073DA CH 159073 A CH159073 A CH 159073A
Authority
CH
Switzerland
Prior art keywords
preparation
water
soluble dye
soluble
ethylcarbazolyl
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH159073A publication Critical patent/CH159073A/en

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Description

  

  Verfahren zur Darstellung     eines    wasserlöslichen     Farbstoffes.       Gegenstand des vorliegenden Zusatzpa  tentes ist ein Verfahren zur Darstellung eines  wasserlöslichen Farbstoffes, welches darin be  steht, dass man auf     2.5-Di(N-äthylcarbazolyl-          3'-amino)-1.4-benzochinon    ein     Sulfierungsmit-          tel    einwirken lässt.  



  <I>Beispiel:</I>  1000 Gewichtsteile 20     %iges        Oleum,    5  Gewichtsteile Borsäure und 50 Gewichtsteile  2. 5 -     Di(N    -     äthylcarbazolyl    -     3'-amino)-1.        4-          benzochinon    werden 3 Stunden auf 20-30    gehalten, auf Eis gegeben, abgesaugt, mit  Salzlösung neutral, gewaschen und getrocknet.  



  Die in guter Ausbeute entstandene     Farb-          stoffsulfosäure    ist als     Alkalisalz    gut löslich  und färbt die tierische, pflanzliche und Kunst  faser in schönen blauen Tönen an.



  Process for the preparation of a water-soluble dye. The subject of the present additional patent is a process for the preparation of a water-soluble dye, which consists in that a sulfonating agent is allowed to act on 2,5-di (N-ethylcarbazolyl-3'-amino) -1,4-benzoquinone.



  <I> Example: </I> 1000 parts by weight of 20% oleum, 5 parts by weight of boric acid and 50 parts by weight of 2.5-di (N-ethylcarbazolyl-3'-amino) -1. 4-benzoquinone are kept at 20-30 for 3 hours, poured onto ice, filtered off with suction, neutral with salt solution, washed and dried.



  The dyestuff sulfonic acid, which is produced in good yield, is easily soluble as an alkali salt and colors animal, vegetable and synthetic fibers in beautiful blue tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines wasser löslichen Farbstoffes, dadurch gekennzeichnet, dass man auf 2.5-Di(N-äthylcarbazolyl-3'- amino)-1.4-bettzochinon ein Sulfierungstnittel einwirken lässt. Die in guter Ausbeute entstandene Farb- stoffsulfosäure ist als Alkalisalz gut löslich und färbt die tierische, pflanzliche und Kunst faser in schönen blauen Tönen an. UNTERANSPRÜCHE: 1. Claim: Process for the preparation of a water-soluble dye, characterized in that a sulfonating agent is allowed to act on 2,5-di (N-ethylcarbazolyl-3'-amino) -1,4-bedzoquinone. The dyestuff sulfonic acid, which is produced in good yield, is easily soluble as an alkali salt and colors animal, vegetable and synthetic fibers in beautiful blue tones. SUBCLAIMS: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man als Sulfierungs- mittel ein Gemisch von 20 o/oigem Oleum und geringen Mengen Borsäure verwendet. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Reaktion bei 20-30o C durchführt. Process according to patent claim, characterized in that a mixture of 20% oleum and small amounts of boric acid is used as the sulphonation agent. 2. The method according to claim, characterized in that the reaction is carried out at 20-30o C.
CH159073D 1930-10-29 1931-10-28 Process for the preparation of a water-soluble dye. CH159073A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE159073X 1930-10-29
CH156123T 1931-10-28

Publications (1)

Publication Number Publication Date
CH159073A true CH159073A (en) 1932-12-15

Family

ID=25716714

Family Applications (1)

Application Number Title Priority Date Filing Date
CH159073D CH159073A (en) 1930-10-29 1931-10-28 Process for the preparation of a water-soluble dye.

Country Status (1)

Country Link
CH (1) CH159073A (en)

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