CH101763A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH101763A
CH101763A CH101763DA CH101763A CH 101763 A CH101763 A CH 101763A CH 101763D A CH101763D A CH 101763DA CH 101763 A CH101763 A CH 101763A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
red
vat dye
solution
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 CH101763A publication Critical patent/CH101763A/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     Nüpenfarbstoffes.       Es ist gefunden worden, dass man durch  Kondensation von     Perylen-3.4.9.10-tetra-          carbonsäure    mit einer Lösung von     Methyl-          amin    einen wertvollen     güpenfarbstoff    er  hält.  



  <I>Beispiel</I>  1000 Gewichtsteile     Perylentetracarbon-          säureanhy        drid    werden mit etwa 4000 Gewichts  teilen einer wässerigen     Methylaminlösung     etwa 15 Stunden im     Autoklaven    auf etwa  180   erhitzt. Nach dem Erkalten wird die       Methylaminlösung    durch Filtrieren von dem  entstandenen Farbstoff getrennt. Sie kann  für eine neue Operation Verwendung finden.  Der Farbstoff wird gewaschen und ge  trocknet.  



  Der Farbstoff bildet ein rotes Pulver und  gibt aus rotvioletter     Hydrosulfitküpe    auf  Baumwolle kräftig rote Ausfärbungen von    sehr guten Echtheitseigenschaften. Die Lö  sung des Farbstoffes in konzentrierter  Schwefelsäure ist violett. Sie fluoresziert  scharlachrot.



  Process for the preparation of a pebble dye. It has been found that by condensing perylene-3.4.9.10-tetracarboxylic acid with a solution of methylamine, a valuable high quality dye is obtained.



  <I> Example </I> 1000 parts by weight of perylenetetracarboxylic acid anhydride are heated to about 180 for about 15 hours in an autoclave with about 4000 parts by weight of an aqueous methylamine solution. After cooling, the methylamine solution is separated from the resulting dye by filtration. It can be used for a new operation. The dye is washed and dried ge.



  The dye forms a red powder and, from the red-violet hydrosulfite vat, gives strong red colorations with very good fastness properties on cotton. The solution of the dye in concentrated sulfuric acid is purple. It fluoresces scarlet red.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man Perylentetracarbonsäure- mit Methyl- aminlösung kondensiert, wobei man einen roten Farbstoff erhält, der aus rotvioletter Hydrosulfitküpe auf Baumwolle kräftig rote echte Ausfärbungen erzeugt und dessen Lö sung in konzentrierter Schwefelsäure violett mit scharlachroter Fluoreszenz ist.- PATENT CLAIM: Process for the preparation of a vat dye, characterized in that perylenetetracarboxylic acid is condensed with methylamine solution, a red dye being obtained which produces strong red real colorations on cotton from a red-violet hydrosulfite vat and its solution in concentrated sulfuric acid with violet scarlet fluorescence is.
CH101763D 1923-01-03 1923-01-03 Process for the preparation of a vat dye. CH101763A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100706T 1923-01-03
CH101763T 1923-01-03

Publications (1)

Publication Number Publication Date
CH101763A true CH101763A (en) 1923-10-16

Family

ID=25705886

Family Applications (1)

Application Number Title Priority Date Filing Date
CH101763D CH101763A (en) 1923-01-03 1923-01-03 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH101763A (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
DE1272270B (en) * 1960-03-30 1968-07-11 Basf Ag Use of N, N'-dimethyl-3, 4, 9, 10-perylenetetracarboxylic diimide as pigment

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
DE1272270B (en) * 1960-03-30 1968-07-11 Basf Ag Use of N, N'-dimethyl-3, 4, 9, 10-perylenetetracarboxylic diimide as pigment

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