DE451549C - Process for the preparation of green-coloring, sulphurous cow dyes - Google Patents

Process for the preparation of green-coloring, sulphurous cow dyes

Info

Publication number
DE451549C
DE451549C DEC35882D DEC0035882D DE451549C DE 451549 C DE451549 C DE 451549C DE C35882 D DEC35882 D DE C35882D DE C0035882 D DEC0035882 D DE C0035882D DE 451549 C DE451549 C DE 451549C
Authority
DE
Germany
Prior art keywords
green
sulphurous
coloring
preparation
dyes
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
DEC35882D
Other languages
German (de)
Inventor
Dr Richard Herz
Dr Jens Mueller
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.)
Sanofi Aventis Deutschland GmbH
Original Assignee
Leopold Cassella et Cie GmbH
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 Leopold Cassella et Cie GmbH filed Critical Leopold Cassella et Cie GmbH
Priority to DEC35882D priority Critical patent/DE451549C/en
Application granted granted Critical
Publication of DE451549C publication Critical patent/DE451549C/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
    • C09B7/00—Indigoid dyes
    • C09B7/08—Other indole-indigos

Description

Verfahren zur Darstellung grünfärbender schwefelhaltiger Küpenfarbstoffe. Zusatz zum Patent 445 2x8. Im Patent 445 218 sind blaugrün bis reingrün färbende Küpenfarbstoffe beschrieben, welche aus dem 2-Aminoperinaphthoxyp!enthiophen entstehen. Es wurde die überraschende Beobachtung gemacht, daß die 2-Acylaminoperinaphthoxypenthiophene (insbesondere das 2 - Acetylaminopenthiophen), welche mit den in tiem Hauptpatent genannten Komponenten nur violette bis blaue Farbstoffe liefern, bei der Kondensation mit i-Halogen - 2 # 3-naphthisatin-a-(i-halogen-2-)-arylid oder u-Chlorid zu gelbgrünen Küpenfarbstoffen von: großer Reinheit und hervorragender Lichtechtheit führen.Process for the preparation of green-colored sulphurous vat dyes. Addition to patent 445 2x8. In patent 445,218 there are blue-green to pure green coloring Vat dyes described, which arise from the 2-aminoperinaphthoxyp! Enthiophene. The surprising observation was made that the 2-acylaminoperinaphthoxypenthiophene (in particular the 2 - acetylaminopenthiophene), which with the in tiem main patent These components only deliver violet to blue dyes during condensation with i-halogen - 2 # 3-naphthisatin-a- (i-halogen-2 -) - arylide or u-chloride to yellow-green Vat dyes of: high purity and excellent lightfastness.

Beispiel. 39 kg i -Chlor-2 # 3-naphthisatin-a-( i-chlor-2-)naphthalid werden mit etwa der zwanzigfachen Menge Eisessig angeschlemmt, dann werden 26 kg 2-Acetylamino-i # 8-naphthoxypenthiophen zugegeben und das Gemisch langsam angewärmt, zum Schluß etwa 2 Stunden unter Rühren im schwachen Sieden gehalten.Example. 39 kg of i-chloro-2 # 3-naphthisatin-a- (i-chloro-2-) naphthalide are suspended in about twenty times the amount of glacial acetic acid, then 26 kg of 2-acetylamino-i # 8-naphthoxypenthiophene are added and the mixture slowly warmed, then kept at a low boil for about 2 hours while stirring.

Die Lösung färbt sich zunächst grün, dann unter Ausfallen des Kondensationsproduktes braunrot. Man filtriert noch warm, wäscht zur Entfernung etwa gebildeter Nebenprodukte mit warmem Eisessig, Benzol oder sonstigen geeigneten Lösungsmitteln und trocknet.The solution initially turns green, then with precipitation of the condensation product brownish red. It is filtered while still warm and washed to remove any by-products formed with warm glacial acetic acid, benzene or other suitable solvents and dry.

Der Farbstoff ist ein dunkelgrünes Pulver, in konzentrierter Schwefelsäure mit olivgrüner Farbe löslich; beim Verdünnen dieser Lösung mit Eis scheiden sich schön blaugrün gefärbte Flocken aus. Alkalische Hydrosulfitlösung erzeugt eine rotgefärbte Küpe, aus welcher Baumwolle und Wolle rein gelbstichiggrün echt angefärbt werden. An Stelle des i-Chlor - 2 # 3 - naphthisatin-a-(i-chlor-2-)naphthalid kann mit gleichem Erfolg das i-Chlor-2 # 3-naphthisatin: a-chlorid verwendet werden. Einen ähnlichen Farbstoff erhält man unter sonst gleichen Bedingungen aus dem 2-Ben-.#.oylamino- i # Knaphthoxyp.enthiophen.The dye is a dark green powder, in concentrated sulfuric acid soluble with olive green color; when this solution is diluted with ice, they separate beautiful blue-green colored flakes. Alkaline hydrosulfite solution produces a red colored one Küpe, from which cotton and wool are really dyed in a pure yellowish green. Instead of i-chlorine - 2 # 3 - naphthisatin-a- (i-chloro-2-) naphthalide can be used with the same Success the i-chloro-2 # 3-naphthisatin: a-chloride can be used. A similar one Dye is obtained from the 2-Ben -. #. Oylamino- i # knaphthoxyp.enthiophene.

Claims (1)

PATEN'LANSi'RIJCH: Verfahren zur Darstellung grünfärbender schwefelhaltiger Küpenfarbstoffe nach Patent 445 218, dadurch gekennzeichnzt, daß man 2-AcylaminoI)erinaplithoxypenthiopliene, insbesondere 2- Acetylaminoperinaphthoxypenthiophen, mit i - Halogen-2. 3-naplitliiszitin-a-arylid kondensiert.PATEN'LANSi'RIJCH: Process for the representation of green-colored sulfur-containing Vat dyes according to patent 445 218, characterized in that 2-acylaminoI) erinaplithoxypenthiopliene, in particular 2-acetylaminoperinaphthoxypenthiophene, with i - halogen-2. 3-naplitliiscitin-a-arylide condensed.
DEC35882D 1924-12-19 1924-12-19 Process for the preparation of green-coloring, sulphurous cow dyes Expired DE451549C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC35882D DE451549C (en) 1924-12-19 1924-12-19 Process for the preparation of green-coloring, sulphurous cow dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC35882D DE451549C (en) 1924-12-19 1924-12-19 Process for the preparation of green-coloring, sulphurous cow dyes

Publications (1)

Publication Number Publication Date
DE451549C true DE451549C (en) 1927-10-28

Family

ID=7022029

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC35882D Expired DE451549C (en) 1924-12-19 1924-12-19 Process for the preparation of green-coloring, sulphurous cow dyes

Country Status (1)

Country Link
DE (1) DE451549C (en)

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