[go: up one dir, main page]

CH179962A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH179962A
CH179962A CH179962DA CH179962A CH 179962 A CH179962 A CH 179962A CH 179962D A CH179962D A CH 179962DA CH 179962 A CH179962 A CH 179962A
Authority
CH
Switzerland
Prior art keywords
dye
azo dye
production
new
new azo
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 CH179962A publication Critical patent/CH179962A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Paper (AREA)

Description

  

  Zusatzpatent zum     Ffauptpatent        Nr.   <B>177266.</B>    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen       Azofarbstoff    erhält, wenn man     #diazotiertes          2-Cyan-4-nitro-1.-aminobenzol    mit     1-Amino-          5-oxynaplithalin    in saurem Medium ver  einigt.

   Der neue Farbstoff bildet in     ge-          troehnetem    Zustande ein dunkles Pulver, das       .,;ich    in organischen Lösungsmitteln, wie<B>zum</B>  Beispiel Essigester, Aceton, Alkohol, Äther  mit     grünstichigblauer    Farbe löst. Durch ge  eignete Zusätze in feine Verteilung, gebracht,  färbt der Farbstoff     Acetatkunstseide    in  kräftigen,     grünstichigblauen    Tönen.  



       LI     <I>Beispiel:</I>  <B>16,3</B> Teile     2-Cyan-4-nitro-l-aminobenzol     werden unter intensivem Rühren und Küh  lung in eine aus<B>7</B> Teilen     Natriumnitrit    und  etwa<B>70</B> Teilen Schwefelsäure in bekannter  Weise hergestellte Lösung von     Nitrosyl-          schwefelsäure    eingetragen. Man rührt bis  eine Probe in Eiswasser klar löslich ist.  Hierauf     --iesst    man in viel Eiswasser.

   Die er  haltene klare     Diazolösung,    die man durch  Zusatz von     Natriumhydroxydlösung    teil  en    weise neutralisiert hat, vereinigt man mit  einer Lösung von<B>15,9</B> Teilen     1-Amino-5-          oxynaphthalin    in der nötigen Menge ver  dünnter Mineralsäure. Die     Farbstoffbil-          dun-,    ist in kurzer Zeit beendet. Der Farb  stoff wird filtriert und neutral gewaschen.



  Additional patent to main patent no. <B> 177266. </B> Process for the production of a new azo dye. It has been found that a new azo dye is obtained if one combines #diazotized 2-cyano-4-nitro-1.-aminobenzene with 1-amino-5-oxynaplithalin in an acidic medium.

   When dry, the new dye forms a dark powder, which dissolves in organic solvents such as ethyl acetate, acetone, alcohol, ether with a greenish blue color. Finely dispersed with suitable additives, the dye acetate artificial silk dyes in strong, greenish blue tones.



       LI <I> Example: </I> <B> 16.3 </B> parts of 2-cyano-4-nitro-l-aminobenzene are converted into one of <B> 7 </B> with intensive stirring and cooling Parts of sodium nitrite and about <B> 70 </B> parts of sulfuric acid introduced in a known manner produced solution of nitrosylsulfuric acid. The mixture is stirred until a sample is clearly soluble in ice water. Then - you drink in plenty of ice water.

   The clear diazo solution obtained, which has been partially neutralized by adding sodium hydroxide solution, is combined with a solution of 15.9 parts of 1-amino-5-oxynaphthalene in the necessary amount of dilute mineral acid. The dye formation is finished in a short time. The dye is filtered and washed neutral.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 2<B>-</B> Cyan<B>-</B> 4<B>-</B> nitro <B>- 1 -</B> amino- benzol mit<B>1. -</B> Amino <B>- 5 -</B> oxynaphthalin in saurem Medium vereinigt. Der neue Farb stoff bildet in getrocknetem Zustande ein dunkles Pulver, das sieh in organischen Lö sungsmitteln, wie zum Beispiel Essigester, Aceton, Alkohol, Äther mit grünstichigblauer Farbe löst. <B> PATENT CLAIM: </B> Process for the preparation of a new azo dye, characterized in that diazotized 2 <B> - </B> Cyan <B> - </B> 4 <B> - </B> nitro <B> - 1 - </B> aminobenzene with <B> 1. - </B> Amino <B> - 5 - </B> oxynaphthalene combined in an acidic medium. When dry, the new dye forms a dark powder that dissolves in organic solvents such as ethyl acetate, acetone, alcohol and ether with a greenish blue color. Durch geeignete Zusätze in feine Verteilung gebracht, färbt der Farbstoff Acetatkunstseide in kräftigen, grünstichig- en blauen Tönen. Finely distributed through suitable additives, the dye acetate artificial silk dyes in strong, greenish blue tones.
CH179962D 1934-02-23 1934-02-23 Process for the production of a new azo dye. CH179962A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH179962T 1934-02-23
CH177266T 1935-05-31

Publications (1)

Publication Number Publication Date
CH179962A true CH179962A (en) 1935-09-30

Family

ID=25719945

Family Applications (1)

Application Number Title Priority Date Filing Date
CH179962D CH179962A (en) 1934-02-23 1934-02-23 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH179962A (en)

Similar Documents

Publication Publication Date Title
CH179962A (en) Process for the production of a new azo dye.
CH179960A (en) Process for the production of a new azo dye.
CH179961A (en) Process for the production of a new azo dye.
CH180291A (en) Process for the production of a new dye.
CH180292A (en) Process for the production of a new dye.
CH180282A (en) Process for the production of a new dye.
CH180286A (en) Process for the production of a new dye.
CH180285A (en) Process for the production of a new dye.
CH180265A (en) Process for the production of a new azo dye.
CH180289A (en) Process for the production of a new dye.
CH180288A (en) Process for the production of a new dye.
CH180277A (en) Process for the production of a new dye.
CH180290A (en) Process for the production of a new dye.
CH185845A (en) Process for the preparation of an azo dye.
CH180280A (en) Process for the production of a new dye.
CH180279A (en) Process for the production of a new dye.
CH180281A (en) Process for the production of a new dye.
CH180283A (en) Process for the production of a new dye.
CH180287A (en) Process for the production of a new dye.
CH179958A (en) Process for the production of a new azo dye.
CH178224A (en) Process for the production of a new dye.
CH183592A (en) Process for the preparation of an azo dye.
CH180278A (en) Process for the production of a new dye.
CH180284A (en) Process for the production of a new dye.
CH179959A (en) Process for the production of a new azo dye.