CH148694A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

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Publication number
CH148694A
CH148694A CH148694DA CH148694A CH 148694 A CH148694 A CH 148694A CH 148694D A CH148694D A CH 148694DA CH 148694 A CH148694 A CH 148694A
Authority
CH
Switzerland
Prior art keywords
preparation
vat dye
vat
condensation
dye
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH148694A publication Critical patent/CH148694A/en

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Description

  

  Verfahren zur Darstellung eines     Küpeufarbstoifes.       Gegenstand dieses     Patentes    ist ein Ver  fahren zur Darstellung eines     Küpenfarbstof-          fes,    welches dadurch gekennzeichnet ist, dass  man     2Taphtoylen-benzimidazol-peri-dicarbon-          :ä.ureanhydri.d    mit     3.4-Diamino-acenaphten     kondensiert.

      <I>Beispiel:</I>       Naphtoylen    -     benzimidazol-peri-dicarbon-          säureanhydrid    wird mit     3.4-Diamino-ace-          naphten    in     Eisessiglösung    unter Erwärmen       kondensiert.     



  Man erhält einen aus olivgrüner     Hydro-          sulfitküpe    Baumwolle in gedeckten braunen  Tönen von guten Echtheitseigenschaften fär  benden Farbstoff.



  Method for the representation of a vat dye. The subject of this patent is a process for the preparation of a vat dye, which is characterized in that 2-taphthoylene-benzimidazole-peri-dicarbon-: ä.ureanhydri.d is condensed with 3,4-diamino-acenaphthene.

      <I> Example: </I> Naphthylene - benzimidazole-peri-dicarboxylic acid anhydride is condensed with 3,4-diamino-acenaphthene in glacial acetic acid solution with heating.



  A dye is obtained which dyes from olive-green hydrosulfite cotton in muted brown shades with good fastness properties.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- farbstoffes, dadurch gekennzeichnet, dass man Naphtoylen -benzimidazol-p.eri-dicarbonsäure- anhydrid mit<B>3.</B> 4-Diamino-acenaphten kon densiert. Der so erhaltene Farbstoff färbt Baum wolle aus olivgrüner Hydrosulfitküpe in 0;@#- deckten braunen Tönen von guten Echtheits eigenschaften an. <B>UNTERANSPRÜCHE:</B> 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation in Gegenwart eines Lösungsmittels aus führt. 2. PATENT CLAIM: Process for the preparation of a vat dye, characterized in that naphthylene-benzimidazole-p.eri-dicarboxylic acid anhydride is condensed with 3-4-diamino-acenaphthene. The dye obtained in this way dyes cotton from olive-green hydrosulfite vat in 0; @ # - covered brown tones with good fastness properties. SUBClaims: 1. Process according to patent claim, characterized in that the condensation is carried out in the presence of a solvent. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Kondensation unter Erwärmen durchführt. Process according to claim, characterized in that the condensation is carried out with heating.
CH148694D 1928-06-18 1929-06-05 Process for the preparation of a vat dye. CH148694A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE148694X 1928-06-18
CH143998T 1929-06-05

Publications (1)

Publication Number Publication Date
CH148694A true CH148694A (en) 1931-07-31

Family

ID=25714403

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148694D CH148694A (en) 1928-06-18 1929-06-05 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH148694A (en)

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