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DE1644168B2 - - Google Patents
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DE1644168B2 - - Google Patents

Info

Publication number
DE1644168B2
DE1644168B2 DE19511644168 DE1644168A DE1644168B2 DE 1644168 B2 DE1644168 B2 DE 1644168B2 DE 19511644168 DE19511644168 DE 19511644168 DE 1644168 A DE1644168 A DE 1644168A DE 1644168 B2 DE1644168 B2 DE 1644168B2
Authority
DE
Germany
Prior art keywords
dye
superpolyamide
structures
dyes
advantage
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
DE19511644168
Other languages
German (de)
Other versions
DE1644168A1 (en
DE1644168C3 (en
Inventor
Heinz Dr. 5090 Leverkusen Haubrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DE19511644168 priority Critical patent/DE1644168A1/en
Publication of DE1644168A1 publication Critical patent/DE1644168A1/en
Publication of DE1644168B2 publication Critical patent/DE1644168B2/de
Application granted granted Critical
Publication of DE1644168C3 publication Critical patent/DE1644168C3/de
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/34Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds

Landscapes

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

Description

Es wurde gefunden, daß man einen wertvollen, neuen gelben Dispersionsfarbstoff erhält, wenn man diazotiertes 2,4,5-Trichloranilin mit 2-Phenylindol kuppelt. Die Kupplung der Ausgangskomponenten erfolgt auf an sich bekannte Weise, bevorzugt in saurer wäßriger Lö<m" g oder Suspension bei Temperaturen von 0 bis 10° C. Nach erfolgter Kupplung kann der entstandene farbstoff aus dem Kupplungsgemisch leicht, z. B. durch Filtration abgetrennt werden, da er in Wasser nur wenig löslich ist.It has been found that a valuable new yellow disperse dye is obtained by diazotizing 2,4,5-trichloroaniline couples with 2-phenylindole. The coupling of the starting components takes place on known manner, preferably in acidic aqueous solution or suspension at temperatures from 0 to 10 ° C. After coupling, the resulting dye from the coupling mixture can easily, for. B. separated by filtration, since it is only sparingly soluble in water.

Der erhaltene Farbstoff entspricht der FormelThe dye obtained corresponds to the formula

r\—f V_N==N_C r \ -f V_ N == N_ C

QH5 NQH 5 N

H
und eignet sich sehr gut zum Fäilien und Be
H
and is very suitable for filing and loading

Beispielexample

196,5 g 2,4,5-Trichloranilin werden in 1000 g Schwefelsäuremonohydrat gelöst und langsam durch Zugabe von 69 g Natriumnitrit diazotiert. Nach halbstündigem Rühren gießt man auf Eis. Zu der so er-196.5 g of 2,4,5-trichloroaniline are dissolved in 1000 g of sulfuric acid monohydrate dissolved and slowly diazotized by adding 69 g of sodium nitrite. After half an hour Stirring is poured onto ice. To the so

jo haltenen Diazolösung fügt man eine Lösung von 194 g 2-Phenylindol in 450 g Schwefelsäure. Nun wird der pH-Wert der Lösung durch Zugabe von Natronlauge oder Natriumacetat auf 1,8 bis 2 erhöht. Nach Beendigung der Reaktion hai sich der Farbstoff in Form von dunklen Kristallen abgeschieden. Es wird abgesaugt, neutral gewaschen und bei 50 bis 600C getrocknet.jo holding diazo solution is added a solution of 194 g of 2-phenylindole in 450 g of sulfuric acid. The pH of the solution is now increased to 1.8 to 2 by adding sodium hydroxide solution or sodium acetate. When the reaction has ended, the dye has deposited in the form of dark crystals. It is suctioned off, washed neutral and dried at 50 to 60 0 C.

In ein Färbebad von 41, O»s 4 g eines emulgierend wirkenden Polyglykoläthers, 0,4 g des gut dispergierten Farbstoffs sowie 16 g eines Carries, beispielsweiseIn a dye bath of 41.0 »s 4 g of an emulsifying agent acting polyglycol ether, 0.4 g of the well-dispersed dye and 16 g of a carry, for example

φ Benzoesäure, und 20 g Diammoniumphosphat enthält, werden 25 g synthetische Superpolyamidfasern bei 500C eingebracht. Man erhitzt innerhalb 30 Minuten zum Kochen und färbt weiter IV2 bis 2 Stunden bei dieser Temperatur. Die Färbung wird anschlie- φ benzoic acid, and contains 20 g of diammonium phosphate, 25 g of synthetic superpolyamide fibers are introduced at 50 ° C. The mixture is heated to the boil over a period of 30 minutes and dyeing continues IV for 2 to 2 hours at this temperature. The coloring is then

p ßend 20 Minuten bei 70° C alkalisch nachgewaschen, gespült und getrocknet. Man erhält eine tiefe klare licht- und waschechte gelbe Färbung. p washed alkaline ßend 20 minutes at 70 ° C, rinsed and dried. A deep, clear, lightfast and washfast yellow coloration is obtained.

Claims (1)

Patentansprüche:
1. Monoazofarbstoff der Formel
Patent claims:
1. Monoazo dye of the formula
IOIO ?.. Verfahren zur Herstellung des wasserunlösliehen Monoazofarbstoffe gemäß Anspruch 1, dadurch gekennzeichnet, daß man diazotiertes 2,4,5-Trichloranilin mit 2-Phenylindol kuppelt.? .. Process for the production of the water insoluble Monoazo dyes according to Claim 1, characterized in that diazotized 2,4,5-trichloroaniline couples with 2-phenylindole. 3. Verwendung des Monoazofarbstoffe aus Anspruch 1 zum Färben und Bedrucken hydro- jo phober Materialien.3. Use of the monoazo dyes from claim 1 for dyeing and printing hydro- jo phobic materials. drucken von Gebilden, z. B. Fasern und Geweben aus hydrophoben Materialien, insbesondere solchen aus aromatischen Polyestern, z. B. Polyäthylenterephthalaten und synthetischen Superpolyamiden. Die auf solchen Gebilden erhaltenen Färbungen zeichnen sich durch eine hohe Lichtechtheit und eine gute Waschechtheit aus.printing of structures, e.g. B. fibers and fabrics made of hydrophobic materials, especially those made of aromatic polyesters, e.g. B. polyethylene terephthalates and synthetic super polyamides. Draw the colorations obtained on such structures are characterized by high lightfastness and good washfastness. Der erfindungsgemäße Farbstoff zeigt gegenüber nächstvergleichbaren Farbstoffen der Beispiele 5 und 12 der belgischen Patentschrift 568 846 den Vorteil der besseren Löslichkeit in Benzylalkohol, was beispielsweise dessen Verwendung zur Herstellung von Kugelschreiberpasten ermöglicht, bzw. den Vorteil der besseren Lichtechtheit auf Superpolyamid-Fasermaterialien. The dye according to the invention shows compared to the next comparable dyes of Examples 5 and 12 of Belgian patent 568 846 the advantage of better solubility in benzyl alcohol, which is for example its use for the production of ballpoint pen pastes enables or the advantage the better lightfastness on superpolyamide fiber materials. Weiterhin übertrifft er den Farbstoff des Beispiels 2 der U£.Y- Patentschrift 1 835 393 hinsichtlich der Farbstärke und der Wasserechtheit (gemäß DIN 54006) von Superpolyamid-Färbungen.Furthermore, it outperforms the dye of Example 2 of U £ .Y Patent 1,835,393 in terms of Color strength and water fastness (according to DIN 54006) of superpolyamide dyeings. Da diese Vorteile am Einreichungstag nicht voraussehbar waren, sind sie als überraschend zu bezeichnen.As these advantages cannot be foreseen on the submission date they can be described as surprising.
DE19511644168 1951-01-28 1951-01-28 Process for the preparation of a water-insoluble monoazo dye Granted DE1644168A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19511644168 DE1644168A1 (en) 1951-01-28 1951-01-28 Process for the preparation of a water-insoluble monoazo dye

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19511644168 DE1644168A1 (en) 1951-01-28 1951-01-28 Process for the preparation of a water-insoluble monoazo dye
DEF0049875 1966-08-05

Publications (3)

Publication Number Publication Date
DE1644168A1 DE1644168A1 (en) 1971-02-18
DE1644168B2 true DE1644168B2 (en) 1974-05-16
DE1644168C3 DE1644168C3 (en) 1975-01-16

Family

ID=25754089

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19511644168 Granted DE1644168A1 (en) 1951-01-28 1951-01-28 Process for the preparation of a water-insoluble monoazo dye

Country Status (1)

Country Link
DE (1) DE1644168A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694587A1 (en) 1994-06-25 1996-01-31 Hoechst Mitsubishi Kasei Co., Ltd. Monoazoindole dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694587A1 (en) 1994-06-25 1996-01-31 Hoechst Mitsubishi Kasei Co., Ltd. Monoazoindole dyestuffs

Also Published As

Publication number Publication date
DE1644168A1 (en) 1971-02-18
DE1644168C3 (en) 1975-01-16

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)