CH127710A - Process for the preparation of a stain dye. - Google Patents

Process for the preparation of a stain dye.

Info

Publication number
CH127710A
CH127710A CH127710DA CH127710A CH 127710 A CH127710 A CH 127710A CH 127710D A CH127710D A CH 127710DA CH 127710 A CH127710 A CH 127710A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
stain dye
stain
aminophenol
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH127710A publication Critical patent/CH127710A/en

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Description

  

  Verfahren zur     Darstellung    eines     Beizenfarbstoffes.       Gegenstand dieser Erfindung ist ein Ver  fahren zur Darstellung eines     Beizenfarb-          stoffes,    welches dadurch gekennzeichnet ist,  dass man die     Diazoverbindung    von     4-Chlor-          2-aminophenol-6-sulfosäure    mit     2.6-Diogy-          naphtalin-3-carbonsäure    kuppelt.  



  <I>Beispiel:</I>  223,5 Gewichtsteile     4-Chlor-2-aminophe-          nol-6-sulfosäure    werden in wässeriger Lö  sung unter Zusatz von 360 Gewichtsteilen  Salzsäure von 20'     B6    mit 70     Gewichtsteilen          Natriumnitrit        diazotiert    und die     Diazover-          bindung    mit einer alkalischen     Lösung    von  204     Gewiehtsteilen        2.6-Dioxynaphtalin-3-          carbonsäure    vereinigt.

   Der auf die übliche    Weise isolierte Farbstoff färbt Wolle im  Chrombade in olivgrünen Tönen von aus  gezeichneter Echtheit an.



  Process for the preparation of a stain dye. The subject of this invention is a process for the preparation of a stain dye, which is characterized in that the diazo compound of 4-chloro-2-aminophenol-6-sulfonic acid is coupled with 2,6-diogynaphthalene-3-carboxylic acid.



  <I> Example: </I> 223.5 parts by weight of 4-chloro-2-aminophenol-6-sulfonic acid are diazotized with 70 parts by weight of sodium nitrite in aqueous solution with the addition of 360 parts by weight of hydrochloric acid of 20 'B6 and the diazo bond combined with an alkaline solution of 204 parts by weight of 2,6-dioxynaphthalene-3-carboxylic acid.

   The dye, isolated in the usual way, dyes wool in the chrome bath in olive green tones of excellent authenticity.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Beizen farbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung von 4-Chlor-2- aminophenol-6-sulfosäure mit 2.6-Diogy- naphtalin-3-carbonsäure kuppelt. Der erhaltene Farbstoff färbt Wolle im Chrombade in olivgrünen Tönen von aus gezeichneter Echtheit an. PATENT CLAIM: Process for the preparation of a stain dye, characterized in that the diazo compound of 4-chloro-2-aminophenol-6-sulfonic acid is coupled with 2,6-diogynaphthalene-3-carboxylic acid. The dye obtained dyes wool in the chrome bath in olive green tones of excellent fastness.
CH127710D 1926-04-27 1927-04-16 Process for the preparation of a stain dye. CH127710A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE127710X 1926-04-27
CH126199T 1927-04-16

Publications (1)

Publication Number Publication Date
CH127710A true CH127710A (en) 1928-09-01

Family

ID=25710612

Family Applications (1)

Application Number Title Priority Date Filing Date
CH127710D CH127710A (en) 1926-04-27 1927-04-16 Process for the preparation of a stain dye.

Country Status (1)

Country Link
CH (1) CH127710A (en)

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