AT47526B - Process for the preparation of blue vat dyes of the sulfine series. - Google Patents

Process for the preparation of blue vat dyes of the sulfine series.

Info

Publication number
AT47526B
AT47526B AT47526DA AT47526B AT 47526 B AT47526 B AT 47526B AT 47526D A AT47526D A AT 47526DA AT 47526 B AT47526 B AT 47526B
Authority
AT
Austria
Prior art keywords
preparation
vat dyes
sulfine
series
blue vat
Prior art date
Application number
Other languages
German (de)
Original Assignee
Cassella Leopold & Co Gmbh
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 Cassella Leopold & Co Gmbh filed Critical Cassella Leopold & Co Gmbh
Application granted granted Critical
Publication of AT47526B publication Critical patent/AT47526B/en

Links

Landscapes

  • Indole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 
 EMI1.2 




   <Desc / Clms Page number 1>
 
 EMI1.1
 
 EMI1.2

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Darstellung in verdünnter Schwefelalkalilösung schwerlöslicher blauer Küpenfarbstoffe aus den durch Kondensation von Nitrosophenolen und Carbazol in Gegenwart von konzentrierter Schwefelsäure erhältlichen Produkten oder ihren Leukoverbindungen, dadurch gekennzeichnet, dass man entweder die beim Erhitzen dieser Körper mit Alkalipolysulfiden nach den üblichen Methoden gewonnenen Rohschmelzen zur Knt- fernung der in verdunnten Schwefelalkalien löslichen Anteile mit Schwefelnatriumlösung extrahiert, oder aber die Schwefelung dieser Körper mit einem Alhalipolybulfid von hohem Schwefelgehalt, am besten in Gegenwart eines geeigneten Verdünnungs- oder Lösungsmittels, durchführt. PATENT CLAIM: Process for the preparation of poorly soluble blue vat dyes in dilute alkaline sulfur solution from the products obtainable by condensation of nitrosophenols and carbazole in the presence of concentrated sulfuric acid or their leuco compounds, characterized in that either the crude melts obtained when these bodies are heated with alkali polysulphides by the usual methods for kneading Removal of the solubles in dilute alkaline sulfur extracts with sodium sulphide solution, or the sulphurisation of these bodies with an alhalipolybulphide with a high sulfur content, preferably in the presence of a suitable diluent or solvent.
AT47526D 1909-05-14 1910-04-08 Process for the preparation of blue vat dyes of the sulfine series. AT47526B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE47526X 1909-05-14

Publications (1)

Publication Number Publication Date
AT47526B true AT47526B (en) 1911-04-25

Family

ID=5625670

Family Applications (1)

Application Number Title Priority Date Filing Date
AT47526D AT47526B (en) 1909-05-14 1910-04-08 Process for the preparation of blue vat dyes of the sulfine series.

Country Status (1)

Country Link
AT (1) AT47526B (en)

Similar Documents

Publication Publication Date Title
AT47526B (en) Process for the preparation of blue vat dyes of the sulfine series.
DE224590C (en)
DE458538C (en) Process for the preparation of Kuepen dyes
AT45024B (en) Process for the preparation of brown sulfur dyes.
AT69310B (en) Process for the preparation of vat dyes of the anthraquinone series.
DE495333C (en) Process for the production of shellac substitute products by condensation of aliphatic oxycarboxylic acids with hydroaromatic oxycarboxylic acids
AT114423B (en) Process for the preparation of anthraquinone derivatives.
DE352521C (en) Process for hardening natural and synthetic resins, pitch, goudron and the like Like substances
AT50614B (en) Process for the production of blue-green colored lakes.
AT208835B (en) Process for the production of the new L-arginine-L-glutamate
AT38490B (en) Process for the preparation of vat dyes of the anthracene series.
AT60756B (en) Process for the production of quebracho extracts, which are clearly soluble at various temperatures required during tanning.
AT41478B (en) Process for the preparation of vat dyes of the anthracene series.
AT35420B (en) Process for the preparation of a red dye.
AT54365B (en) Process for the preparation of nitrogen-containing vat dyes of the thioindigo series.
DE753421C (en)
AT49193B (en) Process for the preparation of red wool dyes of the anthracene series.
AT40725B (en) Process for the preparation of dyes of the thioindigo series.
DE459364C (en) Process for the preparation of nitrogen-containing anthraquinone derivatives
AT58783B (en) Process for the preparation of acid-fast substantive dyes.
CH145351A (en) Process for the production of a vat dye.
CH178434A (en) Process for the production of a new sulfur dye.
CH175680A (en) Process for the production of a new sulfur dye.
CH181156A (en) Process for the production of a new textile auxiliary.
CH181157A (en) Process for the production of a new textile auxiliary.