AT48157B - Process for the preparation of yellow disazo dyes for wool. - Google Patents

Process for the preparation of yellow disazo dyes for wool.

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Publication number
AT48157B
AT48157B AT48157DA AT48157B AT 48157 B AT48157 B AT 48157B AT 48157D A AT48157D A AT 48157DA AT 48157 B AT48157 B AT 48157B
Authority
AT
Austria
Prior art keywords
wool
preparation
disazo dyes
yellow disazo
molecule
Prior art date
Application number
Other languages
German (de)
Original Assignee
Griesheim Elektron Chem Fab
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.)
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Publication date
Application filed by Griesheim Elektron Chem Fab filed Critical Griesheim Elektron Chem Fab
Application granted granted Critical
Publication of AT48157B publication Critical patent/AT48157B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Darstellung gelber Disazofarbstoffe für Wolle. 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 echt sind
Es wurde nun gefunden, dass man in diesen Farbstoffen ein   Molekul Pyra/utondcrivat   durch ein Molekül einer ortho-Oxycarbonsäure der Benzolreihe ersetzen kann und so gleichfallszugelbenwalkechtenWollfarbstoffengelangt. 



     I) a'i Verfahren   sei an folgendem Beispiel erläutert : 
 EMI1.4 
 sodaalkalischon Lösung von 7-2 Teilen Salizylsäure kombiniert. Nach Bildung des Zwischenproduktes gibt man eine mit Soda neutralisierte Lösung von 13 Teilen 1-p-Sulfophenyl- -3-methyl-5-pyrazolon hinzu und rührt bis zur Vollendung der Farbstoffbitdung. Dann wird auf   700 erwiirmt und   der Farbstoff mit Salz gefällt. Er färbt Wolle gelb. 



   In gleicher   Weise kann die Farbstoffbildung durchgeführt werden,   wenn an Stelle der Salizylsäure o- oder m-Kresotinsäure, bezw. wenn andere Sulfoarylmethylpyrazolone, 
 EMI1.5 
 

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



   <Desc / Clms Page number 1>
 



  Process for the preparation of yellow disazo dyes for wool.
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 are real
It has now been found that one molecule of pyra / utone derivative in these dyes can be replaced by a molecule of an ortho-oxycarboxylic acid of the benzene series, thus also obtaining the same wholesome wool dyes.



     I) a'i procedure is explained using the following example:
 EMI1.4
 soda-alkaline solution of 7-2 parts salicylic acid combined. After the intermediate product has formed, a solution of 13 parts of 1-p-sulfophenyl--3-methyl-5-pyrazolone neutralized with soda is added and the mixture is stirred until the dye has formed. Then it is heated to 700 and the dye is precipitated with salt. He dyes wool yellow.



   In the same way, the dye formation can be carried out if o- or m-cresotinic acid, respectively, instead of salicylic acid. if other sulfoarylmethylpyrazolones,
 EMI1.5
 

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

Claims (1)

PATENT-ANSPRUCH : Abändorung des durch das Stammpatent Nr. 47154 geschützten Verfahrens zur Darstellung gelber Disazofarbstoffe für Wolle, dadurch gekennzeichnet, dass die Totra/o- EMI1.6 hier mit einem Molekül 1-Sulfoaryl-3-methyl-5-pyrazolon und einem Molokiil einer ortho- Os\ carbonsäure der Uenzotroihe kombiniert wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Modification of the process protected by the parent patent No. 47154 for the preparation of yellow disazo dyes for wool, characterized in that the totra / o- EMI1.6 is combined here with a molecule of 1-sulfoaryl-3-methyl-5-pyrazolone and a molecule of an ortho-carboxylic acid of the uenzotropic series. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT48157D 1909-05-15 1910-04-23 Process for the preparation of yellow disazo dyes for wool. AT48157B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE47154X 1909-05-15
DE48157X 1909-08-18

Publications (1)

Publication Number Publication Date
AT48157B true AT48157B (en) 1911-05-26

Family

ID=25749045

Family Applications (1)

Application Number Title Priority Date Filing Date
AT48157D AT48157B (en) 1909-05-15 1910-04-23 Process for the preparation of yellow disazo dyes for wool.

Country Status (1)

Country Link
AT (1) AT48157B (en)

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