CH142053A - Process for the preparation of an azo dye. - Google Patents

Process for the preparation of an azo dye.

Info

Publication number
CH142053A
CH142053A CH142053DA CH142053A CH 142053 A CH142053 A CH 142053A CH 142053D A CH142053D A CH 142053DA CH 142053 A CH142053 A CH 142053A
Authority
CH
Switzerland
Prior art keywords
acid
preparation
grams
azo dye
color
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 CH142053A publication Critical patent/CH142053A/en

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Description

  

      Verfahren    zur Darstellung eines     Azofarbstofes.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines     Azofarb-          Stoffes,    welches darin besteht, dass man 2 . 3  Aminonaphtosäure-äthylester     diazotiert    und  mit 2 . 3 -     Oxynaphtoesäure    - a -     naphtylamid     kuppelt.  



  <I>Beispiel:</I>  Kupplungslösung: 31,3     gr    2 .     3-Oxynaph-          toesäure    - a -     naphtylamid,    8     -r        Natronlau(ye          100%ig,    100     gr    Wasser, einstellen auf  250<B>cm'.</B>  



  2     gr    Soda     +    200     gr    Wasser, 2     gr        Tür-          kischrotöl.     



       Diazolösung:        27.,5        gr        Aminonaphtoesäure-          äthylester,    48     gr    Salzsäure 20       Be,    50     gr     Wasser, 7     gr        Natriumnitrat,    18     gr    Wasser,  einstellen auf 500     ein'.     



  Die     Diazolösung    lässt man innerhalb einer  halben Stunde bei ungefähr 15   unter Rüh  ren zu der Kupplungslösung laufen. Nach  beendeter     Farbstoffbildung    wird schwach    kongosauer gemacht und der Farbstoff ab  filtriert.  



  Der erhaltene Farbstoff hat eine schöne  blaustichig rote Nuance und eine gute     Farb-          kraft.    Er löst sich in konzentrierter Schwe  felsäure blau mit rötlichem Schimmer und in  Eisessig sowie Benzol mit roter Farbe. Er  eignet sich sowohl zum Färben von Textilien,  als auch zur Herstellung von graphischen  Farben,     Anstrichfarben,    Tapetenfarben     usyv.     Er ist ölecht, lackierecht und lichtecht.



      Process for the preparation of an azo dye. The subject of this additional patent is a method for the preparation of an azo dye, which consists in that one 2. 3 amino naphthoic acid ethyl ester diazotized and with 2. 3 - oxynaphthoic acid - a - naphthylamide couples.



  <I> Example: </I> Coupling solution: 31.3 gr 2. 3-oxynaphthoic acid - a - naphthylamide, 8 -r caustic soda (ye 100%, 100 g water, set to 250 <B> cm '. </B>



  2 grams of soda + 200 grams of water, 2 grams of Turkish red oil.



       Diazo solution: 27., 5 grams of aminonaphthoic acid ethyl ester, 48 grams of hydrochloric acid 20 Be, 50 grams of water, 7 grams of sodium nitrate, 18 grams of water, set to 500 a '.



  The diazo solution is allowed to run to the coupling solution at about 15 minutes with stirring. After the formation of the dye has ended, it is made weakly Congo acidic and the dye is filtered off.



  The dye obtained has a nice bluish red shade and good color strength. It dissolves in concentrated sulfuric acid blue with a reddish sheen and in glacial acetic acid and benzene with a red color. It is suitable for dyeing textiles as well as for the production of graphic colors, paints, wallpaper colors, etc. It is oil-proof, paint-proof and lightfast.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines Azofarb- si:offes, dadurch gekennzeichnet, da.ss man 2 . 3-Aminonaphtoesäure-äthylester diazotiert und mit 2.3-Oxynaphtoesäure-a-naphtylamid kuppelt. Der erhaltene Farbstoff hat eine schöne blaustichig rote Nuance und eine gute Farb- kraft. Er löst sich in konzentrierter Schwe felsäure blau mit rötlichem Schimmer und in Eisessig sowie Benzol mit roter Farbe. Er eignet sieh sowohl zum Färben von Tex tilien, als auch zur Herstellung von gra phischen Farben, Anstrichfarben, Tapeten- färben usw. PATENT CLAIM: Process for the representation of an azo color si: offes, characterized in that one 2. 3-aminonaphthoic acid ethyl ester diazotized and coupled with 2,3-oxynaphthoic acid-a-naphthylamide. The dye obtained has a nice bluish red shade and good color strength. It dissolves in concentrated sulfuric acid blue with a reddish sheen and in glacial acetic acid and benzene with a red color. It is suitable for dyeing textiles as well as for the production of graphic colors, paints, wallpaper, etc. Er ist. ölecht, lackierecht und lichtecht. He is. oil, lacquer and lightfast.
CH142053D 1927-10-21 1928-10-19 Process for the preparation of an azo dye. CH142053A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE142053X 1927-10-21
CH139184T 1928-10-19

Publications (1)

Publication Number Publication Date
CH142053A true CH142053A (en) 1930-08-31

Family

ID=25713308

Family Applications (1)

Application Number Title Priority Date Filing Date
CH142053D CH142053A (en) 1927-10-21 1928-10-19 Process for the preparation of an azo dye.

Country Status (1)

Country Link
CH (1) CH142053A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336040A (en) * 1965-09-07 1967-08-15 Leonard S Hermanns Holding and conveying device
US5810543A (en) * 1996-04-10 1998-09-22 Hall; John R. Convertible barrow for ground level loading

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3336040A (en) * 1965-09-07 1967-08-15 Leonard S Hermanns Holding and conveying device
US5810543A (en) * 1996-04-10 1998-09-22 Hall; John R. Convertible barrow for ground level loading

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