CH101764A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

Info

Publication number
CH101764A
CH101764A CH101764DA CH101764A CH 101764 A CH101764 A CH 101764A CH 101764D A CH101764D A CH 101764DA CH 101764 A CH101764 A CH 101764A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
dye
vat
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 CH101764A publication Critical patent/CH101764A/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     Küpenfarbstoffes.       Es ist gefunden worden, dass man durch  Kondensation von     Perylen-3.4.9.10-tetra-          earbonsäure    mit einer Lösung von     Athyl-          amin    einen wertvollen     güpenfarbstoff    er  hält.  



  <I>Beispiel:</I>  1000 Gewichtsteile     Perylentetracarbon-          säureanhydrid    werden mit     etwa    4000 Gewichts  teilen einer wässerigen Lösung von     Äthyl-          amin    im     Autoklaven    bis zum Verschwinden  der     Perylentetracarbonsäure    auf etwa<B>180'</B>  erhitzt. Der in annähernd berechneter Menge  ausgeschiedene Farbstoff wird nach dem  Erkalten     abfiltriert,    gewaschen und ge  trocknet.  



  Er liefert eine rotviolette     Hydrosulfit-          küpe,    aus der Baumwolle in echten roten Tö-         nen    angefärbt wird. Die Lösung in konzen  trierter Schwefelsäure erscheint violett, in  dünnen Schichten 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 a solution of ethylamine, a valuable high-quality dye is obtained.



  <I> Example: </I> 1000 parts by weight of perylenetetracarboxylic acid anhydride are heated to about <B> 180 '</B> with about 4000 parts by weight of an aqueous solution of ethylamine in the autoclave until the perylenetetracarboxylic acid disappears. The dyestuff which has separated out in an approximately calculated amount is filtered off after cooling, washed and dried.



  He supplies a red-violet hydrosulphite vat from which cotton is dyed in real red tones. The solution in concentrated sulfuric acid appears violet, colored blue in thin layers.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man Perylentetracarbonsäure mit einer Lö sung von Äthylamin kondensiert, wobei man einen Farbstoff erhält, der in konzentrierter Schwefelsäure violett löslich ist und aus rotvioletter Hydrosulfitküpe Baumwolle in echten roten Tönen anfärbt. PATENT CLAIM: A process for the preparation of a vat dye, characterized in that perylenetetracarboxylic acid is condensed with a solution of ethylamine, a dye which is violet soluble in concentrated sulfuric acid and dyes cotton in real red tones from red-violet hydrosulfite vat.
CH101764D 1923-01-03 1923-01-03 Process for the preparation of a vat dye. CH101764A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100706T 1923-01-03
CH101764T 1923-01-03

Publications (1)

Publication Number Publication Date
CH101764A true CH101764A (en) 1923-10-16

Family

ID=25705887

Family Applications (1)

Application Number Title Priority Date Filing Date
CH101764D CH101764A (en) 1923-01-03 1923-01-03 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH101764A (en)

Cited By (1)

* 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

Cited By (1)

* 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

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