DE399060C - Process for the preparation of a monoazo dye - Google Patents

Process for the preparation of a monoazo dye

Info

Publication number
DE399060C
DE399060C DEC33153D DEC0033153D DE399060C DE 399060 C DE399060 C DE 399060C DE C33153 D DEC33153 D DE C33153D DE C0033153 D DEC0033153 D DE C0033153D DE 399060 C DE399060 C DE 399060C
Authority
DE
Germany
Prior art keywords
preparation
monoazo dye
dye
parts
acid
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.)
Expired
Application number
DEC33153D
Other languages
German (de)
Inventor
Dr Leopold Laska
Dr Arthur Zitscher
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.)
GRIESHEIM ELEKTRON CHEM FAB
Chemische Fabrik Griesheim Elektron
Original Assignee
GRIESHEIM ELEKTRON CHEM FAB
Chemische Fabrik Griesheim Elektron
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 GRIESHEIM ELEKTRON CHEM FAB, Chemische Fabrik Griesheim Elektron filed Critical GRIESHEIM ELEKTRON CHEM FAB
Priority to DEC33153D priority Critical patent/DE399060C/en
Application granted granted Critical
Publication of DE399060C publication Critical patent/DE399060C/en
Expired legal-status Critical Current

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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Description

Verfahren zur Darstellung eines lnonoazofarbstoffes. In ,der Patentschrift 256g99 und einer Reihe anderer sind Farbstoffe beschrieben, welche durch Kombination von unsulfierten Diazov erb:indungen mit 2,- 3-Oxynaphtoesäurearyliden entstehen und zur Erzeugung von echten Lacken und wertvollen Färbungen auf Faserstoffen dienen können.Process for the preparation of an inonoazo dye. In, the patent specification 256g99 and a number of other dyes are described which can be obtained by combination of unsulfated Diazov erbungen with 2, - 3-Oxynaphthoesäurearyliden arise and are used to produce real varnishes and valuable dyes on fibrous materials can.

Es wurde nun gefunden, daß ein Farbstoff von besonders ,guten Eigenschaften erhalten «,erden kann, wenn man die Diazoverbindung aus 3-N.itro-z - 4-anis@din mit 2 - 3-Oxynaphtoesäure-a-niaphtatid kombiniert.It has now been found that a dye has particularly good properties receive «, can be grounded if the diazo compound from 3-N.itro-z - 4-anis @ din combined with 2 - 3-oxynaphthoic acid-a-niaphtatide.

Der neue Farbstoff ist besonders für die Herstellung von Pigmenten geeignet. Eine derartig tiefviolette Nuance in Verbindung mit vorzüglicher Lichtechtheit war bisher mit keiner der bekannten Kombinationen zu erreichen. Beiispiel. In eine aus 16,8 Teilen 3-Nitro-z -4-anis.idin (OCHS : NH2 : NO, - r 4 : 3) hergestellte Düazolösung läßt man eine Lösung von 33 Teilen 2 - 3-Oxynaphtoesäure-a-naphtali,d in verdünnter, aus 35 Teilen 35° B6 bereiteter Natronlauge, welche mit Türki-schrotöl und einer, dem Säureüberschuß ,der D;iazolösung entsprechenden Menge Natriumacetat versetzt ist, unter gutem Rühren langsam einfließen. Der Farbstoff wird ,nach Beendigung der Kombination abfiltriert, neutral .gewaschen und vorteilhaft in Pastenform verwendet.The new dye is particularly suitable for the manufacture of pigments. Such a deep purple shade in connection with excellent lightfastness could not be achieved with any of the known combinations. Example. In an of 16.8 parts of 3-nitro-z -4-anis.idin (OCHS: NH 2: NO, - r 4: 3) produced Düazolösung is allowed to a solution of 33 parts of 2 - 3-oxynaphthoic acid-a-naphtali, d in dilute sodium hydroxide solution prepared from 35 parts 35 ° B6, which is mixed with turkish meal oil and an amount of sodium acetate corresponding to the excess acid and the diazo solution, slowly flowing in with thorough stirring. After the combination is complete, the dye is filtered off, washed neutral and advantageously used in paste form.

Nach dem Trocknen bildet er ein dunkelbordeauxrotes Pulver, welches sich in konzentrierter ,Schwefelsäure mit blauer Farbe löst.After drying it forms a dark burgundy red powder, which dissolves in concentrated sulfuric acid with a blue color.

Der daraus nach einer der üblichen Methoden hergestellte Farblack zeichnet .sich durch sehr gute Lichtbeständigkeit sowie O1- und Spritfesti:gkeit aus.The colored varnish made from it by one of the usual methods is characterized by very good lightfastness as well as oil and fuel resistance the end.

Claims (1)

PATENT-ANsPRUCH Verfahren zur Darstellung eines Monoazofarbstoffes, darin bestehend, daß man die D!i;azoverbinidung au!s 3-Nitro-z - 4-anisidin (OCH3 : NI-I, : NO, - r : 4 : 3) mit 2 # 3-Oxynaphtoesäure a-naphtali..d für sich oder auf einer Grundlage kuppelt.PATENT CLAIM A process for the preparation of a monoazo dye, consisting in that the D! I; azo connection from! S 3-nitro-z - 4-anisidine (OCH3: NI-I,: NO, - r: 4: 3) with 2 # 3-Oxynaphthoic acid a-naphtali..d on its own or on a coupling basis.
DEC33153D 1923-02-08 1923-02-08 Process for the preparation of a monoazo dye Expired DE399060C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC33153D DE399060C (en) 1923-02-08 1923-02-08 Process for the preparation of a monoazo dye

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC33153D DE399060C (en) 1923-02-08 1923-02-08 Process for the preparation of a monoazo dye

Publications (1)

Publication Number Publication Date
DE399060C true DE399060C (en) 1924-07-18

Family

ID=7020679

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC33153D Expired DE399060C (en) 1923-02-08 1923-02-08 Process for the preparation of a monoazo dye

Country Status (1)

Country Link
DE (1) DE399060C (en)

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