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CH267287A - Process for the preparation of a copper-compatible polyazo dye. - Google Patents

Process for the preparation of a copper-compatible polyazo dye.

Info

Publication number
CH267287A
CH267287A CH267287DA CH267287A CH 267287 A CH267287 A CH 267287A CH 267287D A CH267287D A CH 267287DA CH 267287 A CH267287 A CH 267287A
Authority
CH
Switzerland
Prior art keywords
parts
oxy
water
copper
benzoylamino
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH267287A publication Critical patent/CH267287A/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
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/28—Disazo dyes characterised by the tetrazo component the tetrazo component containing two aryl nuclei linked by at least one of the groups —CON<, —SO2N<, —SO2—, or —SO2—O—

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 261632    <B>Verfahren zur</B>     Heratellunz   <B>eines kupferbaren</B>     Polyazofarbatoffes.       Gegenstand vorliegenden     Patentes,    ist ein  Verfahren zur Herstellung eines kupferbaren       Polyazofarbstoffes.    Das Verfahren ist dadurch  gekennzeichnet, dass man 1     Mol        tetrazotiertes     4,4' -     Di    - (3" -     amino    -     4"-oxy        -benzoylamino)

      -     di-          phenylmethan    mit 2     Mol        2-Benzoylamino-5-          oxy-naphthalin-7-sulfonsäure    in alkalischem  Medium vereinigt.    Der erhaltene neue     Disazofarbstoff    stellt  ein dunkles Pulver dar, das sich in Wasser mit  blauvioletter und in konzentrierter Schwefel  säure mit roter Farbe löst und Fasern aus  natürlicher oder regenerierter     Cellulose    nach  gekupfert in violetten Tönen anfärbt, welche  vorzügliche     Echt.heit.en    aufweisen.  
EMI0001.0020     
    wird mit Kochsalz gefällt,     abfiltriert    und       estroeknet.  



      Additional patent to main patent no. 261632 <B> Process for </B> Heratellunz <B> a copperable </B> polyazo-carbate. The subject of the present patent is a process for the preparation of a copperable polyazo dye. The process is characterized in that 1 mol of tetrazotized 4,4 '- di - (3 "- amino - 4" -oxy-benzoylamino)

      - Combined diphenylmethane with 2 moles of 2-benzoylamino-5-oxy-naphthalene-7-sulfonic acid in an alkaline medium. The new disazo dye obtained is a dark powder that dissolves in water with blue-violet and concentrated sulfuric acid with a red color and stains fibers made of natural or regenerated cellulose in violet shades after copper-plated, which have excellent authenticity.
EMI0001.0020
    is precipitated with table salt, filtered off and estroeknet.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer baren Polyazofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol tetrazot.iertes 4,4'-Di- (3"-amino-,4"-oxy-benzoylamino) -diphenyl- methan mit 2 Mol 2-Benzoylamino-5-oxy- riapht.halin-7-sulfonsäure in alkalischem Me dium vereinigt. Beispiel: PATENT CLAIM: Process for the production of a copper-ble polyazo dye, characterized in that 1 mol of tetrazotized 4,4'-di- (3 "-amino-, 4" -oxy-benzoylamino) -diphenyl methane with 2 mol of 2 -Benzoylamino-5-oxy- riapht.halin-7-sulfonic acid combined in an alkaline medium. Example: 46,8 Teile 4,4'-Di- (3"-amino-4"-oxy-benzoyl- amino)-diphenylmethan werden in 600 Teilen Wasser mit 8 Teilen Natronlauge kalt gelöst, mit 13,8 Teilen Natriumnitrit vermischt und in der Kälte unter Rühren auf 40 Teile kon zentrierte Salzsäure und 80 Teile Wasser auf- get.ropft. Nachdem die überschüssige Mineral säure mit Soda abgestumpft wurde, vereinigt man die erhaltene grünstichig gelbe Suspen sion der Tetrazoverbindung mit einer kalten alkalischen Lösung von 68, 46.8 parts of 4,4'-di- (3 "-amino-4" -oxy-benzoyl-amino) -diphenylmethane are dissolved in 600 parts of water with 8 parts of cold sodium hydroxide solution, mixed with 13.8 parts of sodium nitrite and in the Cold while stirring to 40 parts of concentrated hydrochloric acid and 80 parts of water aufget.ropft. After the excess mineral acid has been blunted with soda, the resulting greenish yellow suspension of the tetrazo compound is combined with a cold alkaline solution of 68, 6 Teilen 2-Benzoyl- amino-5-oxy-naphthalin-7-sulfonsäure und 400 Teilen Wasser in Gegenwart von 30 Teilen Soda und 150 Teilen Pyridin. Nach mehrstün digem Rühren bei Raumtemperatur ist die Kupplung beendet. Der erhaltene Disazofarb- stoff der Formel Der erhaltene neue Disazofarbstoff stellt ein dunkles Pulver dar, das sich in Wasser mit blauvioletter und in konzentrierter Schwefel säure mit roter Farbe löst und Fasern aus natürlicher oder regenerierter Cellulose nach gekupfert in violetten Tönen anfärbt, welche vorzügliche Echtheiten aufweisen. 6 parts of 2-benzoylamino-5-oxy-naphthalene-7-sulfonic acid and 400 parts of water in the presence of 30 parts of soda and 150 parts of pyridine. After several hours of stirring at room temperature, the coupling is complete. The disazo dye obtained of the formula The new disazo dye obtained is a dark powder that dissolves in water with blue-violet and in concentrated sulfuric acid with a red color and colors fibers made of natural or regenerated cellulose in violet shades after copper-plated, which have excellent fastness properties .
CH267287D 1947-09-15 1947-09-15 Process for the preparation of a copper-compatible polyazo dye. CH267287A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261632T 1947-09-15
CH267287T 1947-09-15

Publications (1)

Publication Number Publication Date
CH267287A true CH267287A (en) 1950-03-15

Family

ID=25730493

Family Applications (1)

Application Number Title Priority Date Filing Date
CH267287D CH267287A (en) 1947-09-15 1947-09-15 Process for the preparation of a copper-compatible polyazo dye.

Country Status (1)

Country Link
CH (1) CH267287A (en)

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