CH145884A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH145884A
CH145884A CH145884DA CH145884A CH 145884 A CH145884 A CH 145884A CH 145884D A CH145884D A CH 145884DA CH 145884 A CH145884 A CH 145884A
Authority
CH
Switzerland
Prior art keywords
dye
production
new dye
acid
brown
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH145884A publication Critical patent/CH145884A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B56/00—Azo dyes containing other chromophoric systems
    • C09B56/04—Stilbene-azo dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Zusatzpatent zum Hauptpatent     Nr.        143025.       Verfahren zur Herstellung eines neuen Farbstoffes.    Es wurde gefunden,     dass    man einen  neuen wertvollen Farbstoff erhält, wenn man  <B>2</B>     Mol    des     Azofarbstoffes    aus     diazotiertem          ,qonoacetyl-p-phenylendiamin    und     Salicyl-          säure    mit<B>1</B>     Mol    4.     4'-Dinitrostilben-2.        2.'-          (lisulfosäure    unter Druck kondensiert.  



  Der neue Farbstoff stellt getrocknet ein  dunkelbraunes Pulver dar, welches sich in  Wasser und verdünnten Alkalien mit  rotbrauner, in konzentrierter Schwefelsäure  mit blauer Farbe löst und Baumwolle in  orangen Tönen anfärbt, welche     nachge-          kupfert    ein Rotbraun geben.

      <I>Beispiel:</I>    Man mischt in einem     Rührautoklaven   <B>28</B>  Teile des     Azofarbstoffes    aus     diazotiertem          Monoacetyl-p-plienylendiamin    und     Salieyl-          säure    mit 43 Teilen     Dinitrostilbendisulfo-          säure    und 2-00 Teilen Natronlauge von<B>36'</B>  B6, erwärmt auf<B>115</B> bis 120' und konden-         siert    4 Stunden bei dieser Temperatur.

   Der  gebildete Farbstoff wird vollständig     ausge-          salzen    und nach Abstumpfen der Lauge     ab-          genutsc'ht    und getrocknet.



  Additional patent to main patent no. 143025. Process for the production of a new dye. It has been found that a new valuable dye is obtained if <B> 2 </B> mol of the azo dye from diazotized, qonoacetyl-p-phenylenediamine and salicylic acid is <B> 1 </B> mol 4. 4 '-Dinitrostilbene-2. 2 .'- (disulfonic acid condensed under pressure.



  When dried, the new dye is a dark brown powder which dissolves in water and dilute alkalis with reddish brown, in concentrated sulfuric acid with a blue color and dyes cotton in orange tones, which after copper give a reddish brown.

      <I> Example: </I> Mix in a stirred autoclave <B> 28 </B> parts of the azo dye from diazotized monoacetyl-p-plienylenediamine and salieylic acid with 43 parts of dinitrostilbene disulphonic acid and 2-00 parts of sodium hydroxide solution of < B> 36 '</B> B6, heated to <B> 115 </B> to 120' and condensed for 4 hours at this temperature.

   The dye formed is completely salted out and, after the lye has been blunted, grouted and dried.

Claims (1)

PATENTANSPRUCII: Verfahren zur Herstellun- eines neuerl F arbstoffes, dadurch gekennzeichnet, dass maii 2 Mol des Azofarbstoffes aus diazotierlem Monoacetyl-p-phenylendiamin und Salleyl- säure mit<B>1</B> Mol 4. 4-Dinitrostilben--) disulfosäure unter Druck kondensiert. PATENT CLAIM: A process for the production of a new dye, characterized in that 2 moles of the azo dye from diazotized monoacetyl-p-phenylenediamine and salleic acid with 1 mole of 4 4-dinitrostilbene) disulfonic acid condensed under pressure. Der neue Farbstoff stellt getrocknet ein dunkelbraunes Pulver dar, welches sich in Wasser und verdünnten Alkalien mit rotbrauner, in konzentrierter Schwefelsäure mit blauer Farbe löst und Baumwolle in orangen Tönen anfärbt. welche nachge- kupfert ein Rotbraun geben. When dried, the new dye is a dark brown powder which dissolves in water and dilute alkalis with red-brown, in concentrated sulfuric acid with a blue color and dyes cotton in orange tones. which after copper give a red-brown.
CH145884D 1929-03-16 1929-03-16 Process for the production of a new dye. CH145884A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH145884T 1929-03-16
CH143025T 1929-03-16

Publications (1)

Publication Number Publication Date
CH145884A true CH145884A (en) 1931-03-15

Family

ID=25714181

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145884D CH145884A (en) 1929-03-16 1929-03-16 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH145884A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468204A (en) * 1942-12-22 1949-04-26 Geigy Ag J R Stilbene azo dyes
US2518020A (en) * 1944-01-10 1950-08-08 Sandoz Ltd Dyestuffs of the stilbene series and a process for their manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468204A (en) * 1942-12-22 1949-04-26 Geigy Ag J R Stilbene azo dyes
US2518020A (en) * 1944-01-10 1950-08-08 Sandoz Ltd Dyestuffs of the stilbene series and a process for their manufacture

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