CH148688A - Process for the preparation of a vat dye. - Google Patents

Process for the preparation of a vat dye.

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Publication number
CH148688A
CH148688A CH148688DA CH148688A CH 148688 A CH148688 A CH 148688A CH 148688D A CH148688D A CH 148688DA CH 148688 A CH148688 A CH 148688A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
vat dye
vat
condensation
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 CH148688A publication Critical patent/CH148688A/en

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Description

  

  verfahren zur Darstellung eines     güpenfarbstoffes.       Gegenstand dieses Patentes ist ein Ver  fahren zur Darstellung eines     Küpenfarb-          stoffes,    welches dadurch     gekennzeichnet    ist,  dass man     Naphtoylen-benzimidazol-peri-di-          carbonsäureanhydrid    mit     3.4-Diaminotoluol     kondensiert.  



  <I>Beispiel:</I>  Kondensiert man nach der in der Haupt  patentanmeldung beschriebenen Weise 3.4 Ge  wichtsteile     Naphtoylen-benzimidazol-peri-di-          carbonsäureanhydrid    mit 1,3 Gewichtsteilen       3.4-Diaminotoluol,    so erhält man     einen    ro  ten Farbstoff, der aus olivgrüner     Flydrosulfit-          küpe    Baumwolle in roten Tönen anfärbt.  Die Echtheitseigenschaften des Farbstoffes  sind gut.



  Process for the preparation of a quality dye. The subject of this patent is a process for the preparation of a vat dye, which is characterized in that naphthoylene-benzimidazole-peri-dicarboxylic anhydride is condensed with 3,4-diaminotoluene.



  <I> Example: </I> If 3.4 parts by weight of naphthoylene-benzimidazole-peri-dicarboxylic anhydride are condensed with 1.3 parts by weight of 3,4-diaminotoluene, a red dye is obtained which consists of olive green Flydrosulfite vat dyes cotton in red tones. The fastness properties of the dye are good.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Küpen- fa,rbstoffes, dadurch gekennzeichnet, dass man N.aphtoylen-benzimidazol-peri-dicarbou- säureanhydrid mit 3.4-Diaminotoluol kon densiert. Der so erhaltene rote Farbstoff färbt aus olivgrüner Hydrosulfitküpe Baumwolle in ro ten Tönen an. Die Echtheitseigenschaften dec Farbstoffes sind gut. UNTERANSPRüCHE: 1. PATENT CLAIM: Process for the preparation of a vat dye, characterized in that N.aphthoylene-benzimidazole-peri-dicarbouic anhydride is condensed with 3,4-diaminotoluene. The red dye thus obtained stains cotton in red tones from an olive-green hydrosulfite vat. The fastness properties of the dye are good. SUBCLAIMS: 1. Verfahren nach Patentanspruch. dadurch gekennzeichnet, dass man die Kondensa tion in Gegenwart eines Lösungsmittels ausführt. ?. Verfahren nach Patentanspruch. dadurch gekennzeichnet, dass man die Kondensa tion unter Erwärmen durchführt. Method according to claim. characterized in that the condensation is carried out in the presence of a solvent. ?. Method according to claim. characterized in that the condensation is carried out with heating.
CH148688D 1928-06-18 1929-06-05 Process for the preparation of a vat dye. CH148688A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE148688X 1928-06-18
CH143998T 1929-06-05

Publications (1)

Publication Number Publication Date
CH148688A true CH148688A (en) 1931-07-31

Family

ID=25714397

Family Applications (1)

Application Number Title Priority Date Filing Date
CH148688D CH148688A (en) 1928-06-18 1929-06-05 Process for the preparation of a vat dye.

Country Status (1)

Country Link
CH (1) CH148688A (en)

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