AT49175B - Process for the preparation of cotton dyes. - Google Patents

Process for the preparation of cotton dyes.

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Publication number
AT49175B
AT49175B AT49175DA AT49175B AT 49175 B AT49175 B AT 49175B AT 49175D A AT49175D A AT 49175DA AT 49175 B AT49175 B AT 49175B
Authority
AT
Austria
Prior art keywords
dyes
preparation
cotton
cotton dyes
group
Prior art date
Application number
Other languages
German (de)
Original Assignee
Farbenfab Vorm Bayer F & Co
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 Farbenfab Vorm Bayer F & Co filed Critical Farbenfab Vorm Bayer F & Co
Application granted granted Critical
Publication of AT49175B publication Critical patent/AT49175B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von   Baumwollfarbstoffen.   



   In der Stammpatentschrift Nr. 42571 sind gelbe bis orangefarbene Baumwoll0 farbstoffe   beschrieben,   die dadurch entstehen, dass man   Sulfo- oder Carbonsauren   von Aminomonoazoverbindungen der Benzol- oder Naphtalinreihe, die ausser der Aminogruppe keine auxochrome Gruppe enthalten, mit Hilfe von Phosgen oder Thiophosgen oder ihren   Ersatzproduktcu   in die symmetrischen Diarylharnstoff- bezw. Diarylthioharnstoffderivate   Überführt.   



   Bei dur weiteren Bearbeitung dieser Farbstoffklasse wurde gefunden, dass man zu   wt'st'ntHcb     röteren,   sonst aber ähnlichen Produkten gelangt, wenn man die erwähnten 
 EMI1.1 
 Benzol- und Naphtalinreihe ersetzt, die dbenfalls ausser der Aminogruppe keine weitere auxochromeGruppeenthalten. 



   Die neuen Produkte unterscheiden sich gegenüber den Farbstoffen des Patentes 
 EMI1.2 
 
 EMI1.3 
 ist. Der Farbstoff wird ausgesalzen, abfiltriert und getrocknet. Er färbt auf   Baumwolle   ein gelbstichiges Rot von grosser   Lichtechtheit.   



   In diesem   Beispiel lässt sich   der genannte Farbstoff durch analoge Produkte, die 
 EMI1.4 
   eignete Komponente enthalten.   



   Das Phosgen kann durch   seine Krsatzprodukte   oder durch Thiosphosgon ersetzt werden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the preparation of cotton dyes.



   In the parent patent specification no. 42571 yellow to orange cotton0 dyes are described, which arise from the fact that sulfo- or carboxylic acids of aminomonoazo compounds of the benzene or naphthalene series, which contain no auxochromic group other than the amino group, with the help of phosgene or thiophosgene or their substitute products in the symmetrical diarylurea or. Diarylthiourea derivatives transferred.



   By further processing this class of dyes, it was found that one arrives at wt'st'ntHcb redder, but otherwise similar products, if one uses the mentioned ones
 EMI1.1
 Benzene and naphthalene series, which also contain no auxochromic group apart from the amino group.



   The new products differ from the colorants of the patent
 EMI1.2
 
 EMI1.3
 is. The dye is salted out, filtered off and dried. It dyes cotton a yellowish red of great lightfastness.



   In this example, the named dye can be replaced by analogous products that
 EMI1.4
   suitable component included.



   The phosgene can be replaced by its dross products or by thiosphosgon.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Abänderung des Verfahrens des Stammpatentes Nr. 42571 zur darstellung vos Baumwollfarbstoffen. dadurch gekennzeichnet, dass man an Stelle der Sulfo- oder ('arbon- EMI1.5 gruppe keine auxochrome Gruppe enthalten, hier Aminodisazofarbsoffe der genannten Art verwendet. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Modification of the process of the parent patent No. 42571 for the representation of cotton dyes. characterized in that instead of the sulfo- or ('carbon- EMI1.5 group do not contain an auxochromic group, aminodisazo dyes of the type mentioned are used here ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT49175D 1909-05-21 1910-05-04 Process for the preparation of cotton dyes. AT49175B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT42571D
DE49175X 1909-05-21

Publications (1)

Publication Number Publication Date
AT49175B true AT49175B (en) 1911-07-25

Family

ID=25600990

Family Applications (1)

Application Number Title Priority Date Filing Date
AT49175D AT49175B (en) 1909-05-21 1910-05-04 Process for the preparation of cotton dyes.

Country Status (1)

Country Link
AT (1) AT49175B (en)

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