AT42403B - Process for the representation of substantive cotton dyes. - Google Patents

Process for the representation of substantive cotton dyes.

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Publication number
AT42403B
AT42403B AT42403DA AT42403B AT 42403 B AT42403 B AT 42403B AT 42403D A AT42403D A AT 42403DA AT 42403 B AT42403 B AT 42403B
Authority
AT
Austria
Prior art keywords
representation
cotton dyes
molecule
dyes
substantive
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 AT42403B publication Critical patent/AT42403B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung von substantiven Baumwollfarbstoffen. 



   Es sind bereits direkte Baumwollfarbstoffe beschrieben, die sich auf der Faser diazotieren und entwickeln lassen, zu deren   Dars@ellung man tetrazotierte p-Diamine mit   Sulfosäuren von Naphtylaminen, Naphtolen, Aminonaphtolen oder Dioxynaphtalinen einerseits und mit p-Xylidin, o-Aminophenoläther etc. andererseits kuppelt. 



     I s wurde   nun gefunden, dass man durch Ersatz des p-Xylidins in dem   obengenannten     Verfahren durch ein Molekül   eines solchen monoacetylierten m-Diamins oder eines Derivates, in denen die Parastellung zu der freien Aminogruppe unbesetzt ist, und   unter   VerwendungeinesMolekülseinerAcidylperiaminonaphtolsulfosäurealsandereKompenente zu wertvollen direkten Baumwollfarbstoffen gelangt, die sich ebenfalls auf der Faser dia-   zotieren   und entwickeln lassen. Vor den   bekannten Farbstoffen zeichnen   sich die neuen Produkte dadurch aus, dass die auf der Faser entwickelten Färbungen eine viel grössere Klarheit besitzen und sich in vorzüglicher Weise ätzen lassen. 



   Beispiel. 



   224 Teile Dianisidin werden in bekannter Weise diazotiert und die Tetrazover-   vorhindung   erst mit einer Lösung von 405 Teilen 1-Acetylamino-8-naphtol-4.6-disulfosaurem 
 EMI1.1 
 

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



   <Desc / Clms Page number 1>
 



  Process for the representation of substantive cotton dyes.



   Direct cotton dyes have already been described which can be diazotized and developed on the fiber, for the presentation of which tetrazotized p-diamines with sulfonic acids of naphthylamines, naphthols, aminonaphthols or dioxynaphthalenes on the one hand and with p-xylidine, o-aminophenol ethers, etc. on the other hand clutch.



     It has now been found that by replacing the p-xylidine in the above-mentioned process with a molecule of such a monoacetylated m-diamine or a derivative in which the para position to the free amino group is unoccupied, and using a molecule of its acidylperiaminonaphthol sulfonic acid as other components, valuable direct cotton dyes are obtained which can also be diacetated and developed on the fiber. The new products stand out from the known dyes in that the colorations developed on the fiber have a much greater clarity and can be etched in an excellent way.



   Example.



   224 parts of dianisidine are diazotized in a known manner, and the tetrazover is first provided with a solution of 405 parts of 1-acetylamino-8-naphthol-4,6-disulfonic acid
 EMI1.1
 

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

Claims (1)

PATENT-ANSPRH : Vorfahren zur Darstellung von substantiven Baumwollfarbstoffen, welche sich auf der Faser weiter diazotioren und entwickeln lassen, dadurch gekennzeichnet, dass man die Tetrazoverbindungen von p-Diaminen mit einem Molekül einer Acidylperaminonaphtolsulfo- säure und einem Molekül von solchen monoacetylierten m-Diaminen, bei denen die Parastellung zur freien Aminogruppe unbesetzt ist, oder Derivaten dieser Körper, kombiniert. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT APPLICATION: Ancestors for the production of substantive cotton dyes, which can be further diazotized and developed on the fiber, characterized in that the tetrazo compounds of p-diamines with a molecule of an Acidylperaminonaphtholsulfosäure and a molecule of such monoacetylated m-diamines, in which the para position to the free amino group is unoccupied, or derivatives of these bodies, combined. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT42403D 1908-02-18 1909-02-10 Process for the representation of substantive cotton dyes. AT42403B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE42403X 1908-02-18

Publications (1)

Publication Number Publication Date
AT42403B true AT42403B (en) 1910-05-25

Family

ID=5624049

Family Applications (1)

Application Number Title Priority Date Filing Date
AT42403D AT42403B (en) 1908-02-18 1909-02-10 Process for the representation of substantive cotton dyes.

Country Status (1)

Country Link
AT (1) AT42403B (en)

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