CH101760A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH101760A
CH101760A CH101760DA CH101760A CH 101760 A CH101760 A CH 101760A CH 101760D A CH101760D A CH 101760DA CH 101760 A CH101760 A CH 101760A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
vat dye
red
vat
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Kalle Co
Original Assignee
Kalle & Co 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 Kalle & Co Ag filed Critical Kalle & Co Ag
Publication of CH101760A publication Critical patent/CH101760A/en

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
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/62—Cyclic imides or amidines of peri-dicarboxylic acids of the anthracene, benzanthrene, or perylene series

Description

  

  Verfahren zur Darstellung eines     Küpenfarbstoffes.       Es ist gefunden     -worden,    dass man durch  Kondensation von     Perylen-3.4.9.10-tetra-          carbonsäure    mit     p-Anisidin    einen wertvollen       Küpenfarbstoff    erhält.  



  <I>Beispiel:</I>       392          Perylentetracarbon-          säureanhydrid    werden mit etwa 3000 Ge  wichtsteilen     p-Anisiclin    unter Rühren auf  etwa 200   erhitzt, bis das     Perylentetra-          carbonsäureanhydrid    verschwunden ist. Man  lässt dann auf etwa<B>70'</B> abkühlen, verdünnt  mit Alkohol, filtriert, wäscht mit Alkohol  und laugt den Farbstoff schliesslich mit  heisser verdünnter Kalilauge aus. Er wird  in Form von braunroten     Kriställchen    in fast  quantitativer Ausbeute erhalten.  



  Seine Lösung in konzentrierter     Schwefel-          ,gäure    erscheint in dicker Schicht violett, in    dünner Schicht blau. Die     Hydrosulfitküpe          ist    rotviolett gefärbt. Auf Baumwolle er  hält man daraus kräftig rote Ausfärbungen.



  Process for the preparation of a vat dye. It has been found that a valuable vat dye is obtained by condensing perylene-3.4.9.10-tetracarboxylic acid with p-anisidine.



  <I> Example: </I> 392 perylenetetracarboxylic anhydride are heated with about 3000 parts by weight of p-anisicline to about 200 with stirring until the perylenetetracarboxylic anhydride has disappeared. It is then allowed to cool to about <B> 70 '</B>, diluted with alcohol, filtered, washed with alcohol and finally leached out the dye with hot, dilute potassium hydroxide solution. It is obtained in the form of brownish-red crystals in almost quantitative yield.



  Its solution in concentrated sulfuric acid appears violet in a thick layer and blue in a thin layer. The hydrosulfite vat is colored red-violet. On cotton, you get strong red stains from it.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man Perylentetracarbonsäure mit p-Anisidin kondensiert, wobei man einen Farbstoff in braunroten Kriställchen erhält, deren Lösung in konzentrierter Schwefelsäure in dicker Schicht violett, in dünner blau erscheint, und der Baumwolle aus der rotvioletten Hydro- sulfitküpe kräftig rot färbt. PATENT CLAIM: Process for the preparation of a vat dye, characterized in that perylenetetracarboxylic acid is condensed with p-anisidine, whereby a dye is obtained in brownish-red crystals, the solution of which in concentrated sulfuric acid appears violet in a thick layer, blue in a thinner layer, and the cotton out the red-violet hydrosulphite vat turns a strong red color.
CH101760D 1923-01-03 1923-01-03 Process for the preparation of a vat dye. CH101760A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH101760T 1923-01-03
CH100706T 1923-01-03

Publications (1)

Publication Number Publication Date
CH101760A true CH101760A (en) 1923-10-16

Family

ID=25705883

Family Applications (1)

Application Number Title Priority Date Filing Date
CH101760D CH101760A (en) 1923-01-03 1923-01-03 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH101760A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543747A (en) * 1948-08-27 1951-03-06 Gen Aniline & Film Corp Preparation of n.n'-diaryl derivatives of perylene diimid
DE1031449B (en) * 1955-06-13 1958-06-04 Bayer Ag Process for the production of Kuepen dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543747A (en) * 1948-08-27 1951-03-06 Gen Aniline & Film Corp Preparation of n.n'-diaryl derivatives of perylene diimid
DE1031449B (en) * 1955-06-13 1958-06-04 Bayer Ag Process for the production of Kuepen dyes

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