[go: up one dir, main page]

CH106932A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH106932A
CH106932A CH106932DA CH106932A CH 106932 A CH106932 A CH 106932A CH 106932D A CH106932D A CH 106932DA CH 106932 A CH106932 A CH 106932A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
amidobenzaldehyde
water
solution
Prior art date
Application number
Other languages
German (de)
Inventor
Farbwerke Vorm Meiste Bruening
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Publication of CH106932A publication Critical patent/CH106932A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines     ltlonoazofarbstoffes.       In weiterer Ausbildung des Verfahrens  des Hauptpatentes wurde gefunden, dass man  durch Kuppeln der     Diazoverbindung    aus       m-Amidobenzaldehyd    mit einem Molekül  1-     (5'-sulfo-3'-carboxy-2'-oxy)        -phenyl-3        -me-          thyl-5-pyrazolon    einen noch die freie     Al-          dahydgruppe    enthaltenden     Monoazofarbstoff     erhält, welcher als Pigmentfarbstoff sehr  geeignet ist, aber auch die tierische Faser  aus saurem Bade in sehr klaren grüngelben,       alkali-,

          wasser-,    wasch-, walk- und lichtechten  Tönen anfärbt. Durch     Nachchromieren    wird  die Färbung dunkler und übertrifft dann  das bekannte     Beizengelb    0 sowohl im Grün  stich der Nuance, als auch ganz besonders  in der     Karbonisierechtheit.    Der Farbstoff  eignet sich auch zum Wolldruck.

           Natriumnitrit    in 150 Liter Wasser bei  0 bis 5       diazotiert    worden ist, wird, wie  üblich, mit einer Lösung von 94,2 kg  1- (5'-     sulf    o -3'-     carboxy    -2'-     oxy)    -     phenyl    -3 -     me-          thyl-5-pyrazolon    ,in 600 Liter Wasser und  40 kg     calcinierter    Soda bei 0 bis 5   gekup  pelt. Die     Farbstoffbildung    tritt sofort ein  und ist nach kurzem     Nachrühren    bei 20 bis  <B>25'</B> beendet.

   Der Farbstoff wird durch Koch  salz vollständig     ausgesalzen,    filtriert, ge  waschen und getrocknet.



  Process for the preparation of an itlonoazo dye. In a further development of the process of the main patent, it was found that by coupling the diazo compound from m-amidobenzaldehyde with a molecule of 1- (5'-sulfo-3'-carboxy-2'-oxy) -phenyl-3-methyl- 5-pyrazolone contains a monoazo dye which still contains the free aldehyde group, which is very suitable as a pigment dye, but also the animal fibers from acid baths in very clear green-yellow, alkaline,

          dyes water-, wash-, mill- and lightfast shades. After chrome plating, the color becomes darker and then surpasses the well-known stain yellow 0, both in terms of the shade of green and especially in terms of its fastness to carbonization. The dye is also suitable for wool printing.

           Sodium nitrite has been diazotized in 150 liters of water at 0 to 5, is, as usual, with a solution of 94.2 kg 1- (5'-sulf o -3'-carboxy -2'-oxy) - phenyl -3 - methyl-5-pyrazolone, in 600 liters of water and 40 kg of calcined soda at 0 to 5 pelt. The dye formation occurs immediately and is complete after brief stirring at 20 to 25 '.

   The dye is completely salted out with sodium chloride, filtered, washed and dried.

 

Claims (1)

PATENTANSPRUCH: BeisprdeZ 36,3 kg m-Amidobenzaldehyd werden in Form des salzsauren ,Salzes in Wasser gelöst. Nachdem diese Lösung in bekannter Weise durch eine Lösung von 20,7 kg Verfahren zur Darstellung eines sauren, die freie Aldehydgruppe enthaltenden Mono- azofarbstoffes, darin bestehend, dass man die Diazoverbindung aus m-Amidobenzaldehyd mit einem Molekül 1.-(5'-sulfo-3'-carboxy-2'- oxy) -phenyl-3-methyl-5-pyrazolon kuppelt. PATENT CLAIM: BeisprdeZ 36.3 kg of m-amidobenzaldehyde are dissolved in water in the form of the hydrochloric acid salt. After this solution in a known manner by a solution of 20.7 kg process for the preparation of an acidic monoazo dye containing the free aldehyde group, consisting in that the diazo compound from m-amidobenzaldehyde with a molecule 1 .- (5'-sulfo -3'-carboxy-2'-oxy) -phenyl-3-methyl-5-pyrazolone couples. Der Farbstoff färbt tierische Fasern aus sau rem Bade in sehr reinen grüngelben Tönen von sehr guter Alkali-. Deka_tur-. Shwefel-, Wasch-, Walk- und Wasserechtheit. Durch N achchromieren wird die Färbung dunkler und übertrifft dann das bekannte Beizengelb 0 sowohl im Grünstich der Nuance, als auch ganz besonders in der Iarbonisierechtheit, Der Farbstoff eignet sich auch zum Woll- druck. The dye dyes animal fibers from acidic baths in very pure green-yellow tones of very good alkali. Deka_tur-. Sulfur, washing, fulling and water fastness. After chrome plating, the color becomes darker and then surpasses the well-known stain yellow 0 both in the green tint of the nuance and especially in the fastness to carbonization. The dye is also suitable for wool printing.
CH106932D 1922-10-12 1923-10-11 Process for the preparation of a monoazo dye. CH106932A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE106932X 1922-10-12
CH105235T 1923-10-11

Publications (1)

Publication Number Publication Date
CH106932A true CH106932A (en) 1924-09-16

Family

ID=25706828

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106932D CH106932A (en) 1922-10-12 1923-10-11 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH106932A (en)

Similar Documents

Publication Publication Date Title
CH106932A (en) Process for the preparation of a monoazo dye.
DE698927C (en) Process for the preparation of tetrakisazo dyes
DE2347551B2 (en) Trisazo compounds, processes for their production and their use for dyeing paper and leather
CH106927A (en) Process for the preparation of a monoazo dye.
CH106929A (en) Process for the preparation of a monoazo dye.
DE724832C (en) Process for the preparation of disazo dyes
AT112609B (en) Process for the preparation of dis- and polyazo dyes that can be post-treated with metal salts.
CH106930A (en) Process for the preparation of a monoazo dye.
DE620344C (en) Process for the production of azo dyes
CH106931A (en) Process for the preparation of a monoazo dye.
DE915381C (en) Process for the preparation of unsymmetrical urea derivatives of monoazo dyes
DE552775C (en) Process for the preparation of azo dyes
CH213429A (en) Process for the production of a copper-containing trisazo dye.
CH105235A (en) Process for the preparation of a monoazo dye.
CH107127A (en) Process for the preparation of a monoazo dye.
CH107128A (en) Process for the preparation of a monoazo dye.
CH190722A (en) Process for the preparation of an azo dye.
CH106928A (en) Process for the preparation of a monoazo dye.
DE1058172B (en) Process for the preparation of metal-containing monoazo dyes
CH311487A (en) Process for the preparation of a metal-containing polyazo dye.
CH265728A (en) Process for the preparation of a copper-compatible polyazo dye.
CH293870A (en) Process for the preparation of a copper-compatible polyazo dye.
CH222138A (en) Process for the production of a new chromium-containing azo dye.
CH207205A (en) Process for the preparation of a disazo dye.
CH180962A (en) Process for the preparation of an azo dye.