CH117693A - Process for the preparation of a trisazo dye. - Google Patents

Process for the preparation of a trisazo dye.

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Publication number
CH117693A
CH117693A CH117693DA CH117693A CH 117693 A CH117693 A CH 117693A CH 117693D A CH117693D A CH 117693DA CH 117693 A CH117693 A CH 117693A
Authority
CH
Switzerland
Prior art keywords
sulfonic acid
preparation
cleve
trisazo dye
naphthylamine sulfonic
Prior art date
Application number
Other languages
German (de)
Inventor
Sandoz Chemische Fabri Vormals
Original Assignee
Chem Fab Vormals Sandoz
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 Fab Vormals Sandoz filed Critical Chem Fab Vormals Sandoz
Publication of CH117693A publication Critical patent/CH117693A/en

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Description

  

  Verfahren     zur    Darstellung eines     Trisazofarbstoffes.       Es wurde gefunden, dass man zu einem  neuen     Trisazofarbstoff    gelangen kann, wenn  man     diazotierte        1,6-Naphthylaminsulfosäure          Cl6ve    mit     1,6-Naphthylaminsulfosäure        C16ve     kuppelt, das Zwischenprodukt weiter     diazo-          tiert,    mit     1,6-Naphthylaminsulfosäure    -     Cleve     kombiniert,

   erneut     cliazotiert    und mit     1-          Phenylamidonaphtlhalin-8-sulfosäure    kuppelt.  <I>Beispiel:</I>  22;S Teile 1.6 - N     aphthylaminsulfosäure          C16ve    werden mit 6,9 Teilen Nitrit     diazotiert,     mit 22,3 Teilen     1,6-Naphthylaminsulfosäure          Cleve    kombiniert, der entstandene.

       Monoazo-          farbstoff    wird mit 6,9 Teilen Nitrit weiter       dianotiert    und mit 22,3 Teilen     1,6-Naphthyl-          aminsulfosäure        Cleve    gekuppelt. Der     Disazo-          farbstoff    wird abgeschieden, mit 6,9 Teilen  Nitrit wieder dianotiert und zum     Schluss    mit  einer Lösung von 32,1 Teilen 1-Phenylamido-         naphthalin-8-sulfosaurem    Natrium kombi  niert.  



  Der neue Farbstoff bildet ein grau  schwarzes Pulver und färbt Baumwolle     licht-          und    waschecht grau. .



  Process for the preparation of a trisazo dye. It has been found that a new trisazo dye can be obtained if diazotized 1,6-naphthylamine sulfonic acid Cl6ve is coupled with 1,6-naphthylamine sulfonic acid C16ve, the intermediate product is diazotized further, combined with 1,6-naphthylamine sulfonic acid - Cleve,

   cliazotized again and coupled with 1-phenylamidonaphthalene-8-sulfonic acid. <I> Example: </I> 22; 5 parts of 1.6-naphthylamine sulfonic acid C16ve are diazotized with 6.9 parts of nitrite, combined with 22.3 parts of 1,6-naphthylamine sulfonic acid Cleve, the resultant.

       Monoazo dye is further dianotized with 6.9 parts of nitrite and coupled with 22.3 parts of 1,6-naphthylamine sulfonic acid Cleve. The disazo dye is deposited, dianotized again with 6.9 parts of nitrite and finally combined with a solution of 32.1 parts of 1-phenylamidonaphthalene-8-sulphonic acid sodium.



  The new dye forms a gray-black powder and dyes cotton lightfast and washable gray. .

Claims (1)

PATENTANSPRUCH Verfahren zur Darstellung eines Trisazo- farbstoffes, dadurch gekennzeichnet, dass man diazotiertes 1,6-Naphthylaminsulfosäure Cleve mit 1,6-Naphthylaminsulfosäure Cleve kup pelt, das Zwischenprodukt weiter diazotiert, mit 1,6-Naphthylaminsulfosäure Cleve kom biniert, erneut dianotiert und .mit 1-Phenyl- amidonaphthalin-8-sulfosäure kuppelt. PATENT CLAIM Process for the preparation of a trisazo dye, characterized in that diazotized 1,6-naphthylamine sulfonic acid Cleve is coupled with 1,6-naphthylamine sulfonic acid Cleve, the intermediate product is further diazotized, combined with 1,6-naphthylamine sulfonic acid Cleve, dianotized again and. with 1-phenyl-amidonaphthalene-8-sulfonic acid. Der neue Farbstoff bildet ein grau schwarzes Pulver und färbt Baumwolle licht- und waschecht grau. The new dye forms a gray-black powder and dyes cotton lightfast and washable gray.
CH117693D 1924-01-11 1924-11-04 Process for the preparation of a trisazo dye. CH117693A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR117693X 1924-01-11
CH114915T 1926-05-17

Publications (1)

Publication Number Publication Date
CH117693A true CH117693A (en) 1926-11-16

Family

ID=25708410

Family Applications (1)

Application Number Title Priority Date Filing Date
CH117693D CH117693A (en) 1924-01-11 1924-11-04 Process for the preparation of a trisazo dye.

Country Status (1)

Country Link
CH (1) CH117693A (en)

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