CH101757A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH101757A
CH101757A CH101757DA CH101757A CH 101757 A CH101757 A CH 101757A CH 101757D A CH101757D A CH 101757DA CH 101757 A CH101757 A CH 101757A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
red
vat dye
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 CH101757A publication Critical patent/CH101757A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Darstellung eines     Nüpenfarbstoffes.       Es ist gefunden worden, dass man durch  Kondensation von     Perylen-3.4.9.10-tetra-          carbonsä        ure    mit     p-Chloranilin    einen wert  vollen     Küpenfarbstoff    erhält.  



  <I>Beispiel:</I>  392 Gewichtsteile     Perylentetracarbon-          säureanhydricl    werden mit etwa 3500 Ge  wichtsteilen     p-Chloranilin        un.;er    Rühren auf  etwa 190 bis 200' bis zum Verschwinden  des     Perylentetracarbonsäureanhydrids    erhitzt.  Nach beendeter     Farbstoffbildung    lässt man  auf etwa 80   abkühlen, rührt etwa 5000 Ge  wichtsteile Alkohol ein und filtriert den ab  geschiedenen Farbstoff ab.

   Er wird mit       Alkohol        ausgewaschen    und     schliesslich,    zur  Entfernung geringer     alkalilöslicher    Verun  reinigungen mit verdünnter, heisser Kali  lauge ausgezogen. Die Ausbeute ist fast  quantitativ.  



  Der in braunroten Kristallnadeln er  haltene Farbstoff wird von konzentrierter    Schwefelsäure violett gelöst. Die gebräuch  lichen organischen Lösungsmittel nehmen  nur wenig     mit    gelbgrüner Fluoreszenz auf.  Die     Hydrosulfitküpe        ist    rotviolett. Baum  wolle wird daraus in echten roten Tönen  angefärbt.



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



  <I> Example: </I> 392 parts by weight of perylenetetracarboxylic acid anhydride are heated with about 3500 parts by weight of p-chloroaniline and stirring to about 190 to 200 'until the perylenetetracarboxylic acid anhydride has disappeared. After the formation of the dye has ended, the mixture is allowed to cool to about 80, about 5000 parts by weight of alcohol are stirred in and the dyestuff which has separated off is filtered off.

   It is washed out with alcohol and finally, to remove minor alkali-soluble impurities, it is stripped with diluted, hot potash lye. The yield is almost quantitative.



  The dye, contained in red-brown crystal needles, is dissolved in a violet color by concentrated sulfuric acid. The common organic solvents absorb little with yellow-green fluorescence. The hydrosulfite vat is red-violet. It is used to dye cotton in real red tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man Perylentetracarbonsäure mit p-Chlor- anilin kondensiert, wobei man einen Farb stoff in braunroten Kristallnadeln erhält, dessen Lösung in konzentrierter Schwefel säure violett gefärbt ist. Aus der rotvioletten Hydrosulfitküpe wird Baumwolle in echten roten Tönen angefärbt. PATENT CLAIM: Process for the preparation of a vat dye, characterized in that perylenetetracarboxylic acid is condensed with p-chloroaniline, a dye being obtained in brownish-red crystal needles, the solution of which in concentrated sulfuric acid is colored purple. Cotton is dyed in real red tones from the red-violet hydrosulfite vat.
CH101757D 1923-01-03 1923-01-03 Process for the preparation of a vat dye. CH101757A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100706T 1923-01-03
CH101757T 1923-01-03

Publications (1)

Publication Number Publication Date
CH101757A true CH101757A (en) 1923-10-16

Family

ID=25705880

Family Applications (1)

Application Number Title Priority Date Filing Date
CH101757D CH101757A (en) 1923-01-03 1923-01-03 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH101757A (en)

Cited By (6)

* 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
DE1067548B (en) * 1956-05-18 1959-10-22 Hoechst Ag Process for the preparation of a dye
DE1067952B (en) * 1959-10-29 Farbwerke Hoechst Aktiengesellschaft vormals Meister Lucius & Bruning, Frankfurt/M Process for the preparation of a dye
DE1105085B (en) * 1958-12-13 1961-04-20 Hoechst Ag Process for the preparation of a dye
DE1105084B (en) * 1958-12-13 1961-04-20 Hoechst Ag Process for the preparation of a dye

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067952B (en) * 1959-10-29 Farbwerke Hoechst Aktiengesellschaft vormals Meister Lucius & Bruning, Frankfurt/M Process for the preparation of a dye
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
DE1067548B (en) * 1956-05-18 1959-10-22 Hoechst Ag Process for the preparation of a dye
DE1105085B (en) * 1958-12-13 1961-04-20 Hoechst Ag Process for the preparation of a dye
DE1105084B (en) * 1958-12-13 1961-04-20 Hoechst Ag Process for the preparation of a dye

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