DE525668C - Process for the representation of pink to red tinting dyes - Google Patents

Process for the representation of pink to red tinting dyes

Info

Publication number
DE525668C
DE525668C DEI35467D DEI0035467D DE525668C DE 525668 C DE525668 C DE 525668C DE I35467 D DEI35467 D DE I35467D DE I0035467 D DEI0035467 D DE I0035467D DE 525668 C DE525668 C DE 525668C
Authority
DE
Germany
Prior art keywords
pink
representation
dyes
oxy
tinting 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
DEI35467D
Other languages
German (de)
Inventor
Dr Walter Brunner
Dr Richard Herz
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.)
IG Farbenindustrie AG
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
Priority to DEI35467D priority Critical patent/DE525668C/en
Application granted granted Critical
Publication of DE525668C publication Critical patent/DE525668C/en
Expired 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
    • C09B7/00Indigoid dyes
    • C09B7/10Bis-thionapthene indigos

Landscapes

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

Description

Verfahren zur Darstellung von rosa bis rot färbenden Küpenfarbstoffen Es wurde gefunden, daß man zu neuen schwefelhaltigen Küpenfarbstoffen gelangt, wenn man 2-Anile der 6-Halogendiketodihydrothionaphthene mit 3-Oxy-4.-alkylthionaphthenen und ihren Kernsubstitutionsprodukten, insbesondere mit solchen, die in 6-Stellung durch Halogen substituiert sind, oder umgekehrt 6-Halogen-3-oxythionaphthene mit 2-Anilen von 4-Alkyl-2 - 3-diketodihydrothionaphthenen und ihren Kernsubstitutionsprodukten, insbesondere den in 6-Stellung substituierten, kondensiert. Die so erhaltenen Farbstoffe färben Baumwolle aus der Hydrosulfitküpe in rosa bis roten Tönen von annähernd gleicher Lebhaftigkeit wie die q. - q.'-Dialkyl-6 - 6'-dihalogenthioindigo-Farbstoffe, übertreffen diese jedoch noch an Licht- undWetterechtheit. Es bedeutet dies einen wesentlichen technischen Fortschritt. Beispiel i 184,5 Teile 6-Chlor-3-oxythionaphthen werden in etwa q. ooo Teilen Eisessig gelöst und 364 Teile q. . Methyl - 6 - chlor - 2 # 3 - dihydro -3 - ketothionaphthen-2-(p-dimethylamino-) anil zugesetzt, welches man z. B. durch Einwirkung von Nitrosodimethylanilin auf eine alkalische Lösung des 3-Oxy-q.-methyl-6-chloroxythionaphthenserhält. Man erhitzt einige Zeit bis zur Beendigung der Farbstoffbildung. Der ausgeschiedene Farbstoff wird abfiltriert und stellt in trockener Form ein dunkelrotes Pulver dar, das sich in konzentrierter Schwefelsäure mit grüner Farbe löst. Er färbt Baumwolle aus gelber Küpe in lebhaften blaustichig rosa Tönen an.Process for the preparation of pink to red coloring vat dyes It has been found that new sulfur-containing vat dyes can be obtained if one 2-aniles of the 6-halodiketodihydrothionaphthenes with 3-oxy-4.-alkylthionaphthenes and their core substitution products, especially those in the 6-position are substituted by halogen, or conversely with 6-halo-3-oxythionaphthenes 2-anilene of 4-alkyl-2 - 3-diketodihydrothionaphthenes and their core substitution products, especially those substituted in the 6-position, condensed. The dyes thus obtained dye cotton from the hydrosulfite vat in pink to red shades of approximately the same Liveliness like the q. - q .'-Dialkyl-6-6'-dihalothioindigo dyes these, however, still in terms of light and weather fastness. This means an essential one technical progress. Example i 184.5 parts of 6-chloro-3-oxythionaphthene become roughly q. ooo parts dissolved glacial acetic acid and 364 parts q. . Methyl - 6 - chloro - 2 # 3 - dihydro -3 - ketothionaphthen-2- (p-dimethylamino-) anil added which one z. B. by the action of nitrosodimethylaniline on an alkaline solution des 3-oxy-q.-methyl-6-chloroxythionaphthene. It is heated for some time until Termination of dye formation. The precipitated dye is filtered off and is a dark red powder in dry form, which is concentrated in Dissolves sulfuric acid with a green color. He dyes cotton from a yellow vat in lively bluish pink tones.

Man erhält den gleichen Farbstoff, wenn man vom Anil des 6-Chloroxythionaphthens ausgeht und dieses mit 3-Oxy-4.-methyl-6-chlorthionaphthen kondensiert.The same dye is obtained if one uses the anil of 6-chloroxythionaphthene goes out and this condenses with 3-oxy-4.-methyl-6-chlorothionaphthene.

Man erhält einen Farbstoff von ähnlichen Eigenschaften, wenn man an Stelle der Chlorverbindungen das entsprechende Bromderivat verwendet. Beispiel 2 Ersetzt man im Beispiel i das dort verwendete 3-Oxy-4-methyl-6-chlorthionaphthen durch 3-Oxy-4-methylthionaphthen, so erhält man einen Farbstoff, der Baumwolle lebhaft blaustichig rosa färbt.You get a dye with similar properties by clicking on Instead of the chlorine compounds, the corresponding bromine derivative is used. Example 2 If the 3-oxy-4-methyl-6-chlorothionaphthene used there is replaced in Example i with 3-oxy-4-methylthionaphthene, a dye is obtained that makes cotton lively bluish pink in color.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von rosa bis rot färbenden Küpenfarbstoffen, dadurch gekennzeichnet, daß man 2-Anile der 6-Halogendiketodihydrothionaphthene mit 3-Oxy-q.-alkylthionaphthenen und ihren Kernsubstitutionsprodukten, insbesondere mit solchen, die in 6-Stellung durch Halogen substituiert sind, oder umgekehrt 6-Halogen-3-oxythionaphthene mit 2-Anilen von 4-Alkyl-2 - 3-diketodihydrothionaphthenen und ihren Substitutionsprodukten, insbesondere den in 6-Stellung substituierten, kondensiert.PATENT CLAIM: Process for the representation of pink to red coloring Vat dyes, characterized in that 2-aniles of the 6-halodiketodihydrothionaphthenes are used with 3-oxy-q.-alkylthionaphthenes and their core substitution products, in particular with those which are substituted in the 6-position by halogen, or vice versa, 6-halo-3-oxythionaphthenes with 2-anilene of 4-alkyl-2 - 3-diketodihydrothionaphthenes and their substitution products, especially those substituted in the 6-position, condensed.
DEI35467D 1928-09-07 1928-09-07 Process for the representation of pink to red tinting dyes Expired DE525668C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI35467D DE525668C (en) 1928-09-07 1928-09-07 Process for the representation of pink to red tinting dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI35467D DE525668C (en) 1928-09-07 1928-09-07 Process for the representation of pink to red tinting dyes

Publications (1)

Publication Number Publication Date
DE525668C true DE525668C (en) 1931-05-27

Family

ID=7188993

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI35467D Expired DE525668C (en) 1928-09-07 1928-09-07 Process for the representation of pink to red tinting dyes

Country Status (1)

Country Link
DE (1) DE525668C (en)

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