CH101761A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH101761A
CH101761A CH101761DA CH101761A CH 101761 A CH101761 A CH 101761A CH 101761D A CH101761D A CH 101761DA CH 101761 A CH101761 A CH 101761A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
vat
vat dye
violet
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 CH101761A publication Critical patent/CH101761A/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     1-Methyl-2-amino-5-chlor-          -,benzol    einen wertvollen     Küpenfarbstoff    er  hält.  



  <I>Beispiel:</I>  392 Gewichtsteile     Perylentetracarbon-          säureanhydrid    werden mit etwa 3000 Ge  wichtsteilen     1-Methyl-2-amino-5-chlorbenzol     bis zum Verschwinden des     Perylentetra-          carbonsäureanhy        drids    unter Rühren auf etwa  200   erhitzt. Man lässt dann auf etwa 60    abkühlen, rührt etwa 2000 Gewichtsteile  Sprit ein     und;    filtriert. Nach dem Aus  waschen mit Alkohol wird der Farbstoff mit  verdünnter heisser Kalilauge     extraliiert,    ge  waschen und getrocknet.  



  Der Farbstoff bildet rote     Kristallnädel-          chen.    Er gibt aus roter     Hydrosulfitküpe    auf    Baumwolle ein reines     bläuliches    Rosa. Die  Lösung in konzentrierter Schwefelsäure ist  violett, in dünner Schicht blau gefärbt.



  Process for the preparation of a vat dye. It has been found that by condensing perylene-3.4.9.10-tetra- carboxylic acid with 1-methyl-2-amino-5-chloro-, benzene, a valuable vat dye is obtained.



  <I> Example: </I> 392 parts by weight of perylenetetracarboxylic anhydride are heated to about 200 with about 3000 parts by weight of 1-methyl-2-amino-5-chlorobenzene until the perylenetetracarboxylic anhydride has disappeared. It is then allowed to cool to about 60, stirred in about 2000 parts by weight of fuel and; filtered. After washing with alcohol, the dye is extracted with dilute hot potassium hydroxide solution, washed and dried.



  The dye forms red crystal needles. It gives a pure bluish pink from a red hydrosulfite vat on cotton. The solution in concentrated sulfuric acid is violet, in a thin layer blue.

Claims (1)

PATENTANSPRUCH Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man Perylentetracarbonsäure mit 1-1llethyl- 2-amino-5-chlorbenzol kondensiert, wobei man einen Farbstoff in roten Kristallnädelchen erhält, der in konzentrierter Schwefelsäure violett, in dünner Schicht blau löslich ist und aus violetter Hydrosiilfitküpe auf Baumwolle ein reines bläuliches Rosa er zeugt. PATENT CLAIM Process for the preparation of a vat dye, characterized in that perylenetetracarboxylic acid is condensed with 1-1llethyl-2-amino-5-chlorobenzene, whereby a dye is obtained in red crystal needles which is violet in concentrated sulfuric acid and blue in a thin layer and from a violet hydrosilicate vat on cotton it produces a pure bluish pink.
CH101761D 1923-01-03 1923-01-03 Process for the preparation of a vat dye. CH101761A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100706T 1923-01-03
CH101761T 1923-01-03

Publications (1)

Publication Number Publication Date
CH101761A true CH101761A (en) 1923-10-16

Family

ID=25705884

Family Applications (1)

Application Number Title Priority Date Filing Date
CH101761D CH101761A (en) 1923-01-03 1923-01-03 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH101761A (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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