[go: up one dir, main page]

CH267289A - 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
CH267289A
CH267289A CH267289DA CH267289A CH 267289 A CH267289 A CH 267289A CH 267289D A CH267289D A CH 267289DA CH 267289 A CH267289 A CH 267289A
Authority
CH
Switzerland
Prior art keywords
copper
oxy
preparation
compatible
parts
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 CH267289A publication Critical patent/CH267289A/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)
  • Coloring (AREA)

Description

  

  <B>Zusatzpatent</B>     zum    Hauptpatent Nr.     26163\'.       Verfahren zur Herstellung eines kupferbaren     Polyazofarbstoffes.       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-6"-ehlor-benzoyl-          amino)-diphenyl    mit 2     Mol        2-Acetylamino-6-          oxy-naphthalin-8-sulfonsäure    in alkalischem  Medium vereinigt.  



  Der erhaltene neue     Disazofarbstoff    stellt  ein dunkles Pulver dar, das sich in Wasser mit  violetter und in konzentrierter Schwefelsäure  mit roter Farbe löst und     Fasern    aus natür  licher oder regenerierter     Cellulose        nachgekup-          fert    in rein violetten Tönen anfärbt, welche  vorzügliche     Echtheiten    aufweisen.

      <I>Beispiel:</I>  52,5 Teile     4,4'-Di-        (3"-amino-4"-oxy-6"-chlor-          benzoylamino)-diphenyl    werden in 600 Teilen       Wasser    mit 8 Teilen Natronlauge kalt gelöst,  mit 13,8 Teilen     Natxiumnitrit    vermischt und  in der Kälte unter Rühren auf 40 Teile kon  zentrierte Salzsäure und 80 Teile Wasser auf  getropft.

   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 56,2 Teilen     2-Acetyl-          amino-6-oxy-naphthalin-8-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  
EMI0001.0033     
    wird mit Kochsalz gefällt,     abfiltriert    und  getrocknet.



  <B> Additional patent </B> to main patent no. 26163 \ '. Process for the preparation of a copper-compatible polyazo dye. The present patent relates to 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-6" -ehlor-benzoyl-amino) -diphenyl combined with 2 moles of 2-acetylamino-6-oxy-naphthalene-8-sulfonic acid in an alkaline medium.



  The new disazo dye obtained is a dark powder that dissolves in water with violet and in concentrated sulfuric acid with red color and stains fibers made from natural or regenerated cellulose in pure violet shades, which have excellent fastness properties.

      <I> Example: </I> 52.5 parts of 4,4'-di- (3 "-amino-4" -oxy-6 "-chlorobenzoylamino) -diphenyl are cold in 600 parts of water with 8 parts of sodium hydroxide solution dissolved, mixed with 13.8 parts of sodium nitrite and added dropwise in the cold with stirring to 40 parts of concentrated hydrochloric acid and 80 parts of water.

   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 56.2 parts of 2-acetylamino-6-oxy-naphthalene-8-sulfonic acid and 400 parts of water Presence of 30 parts of soda and 150 parts of pyridine. After several hours of stirring at room temperature, the coupling is complete. The resulting disazo dye of the formula
EMI0001.0033
    is precipitated with common salt, filtered off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines kupfer baren Polyazofarbstoffes, dadurch gekenn zeichnet, dass man 1 Mol tetrazotiertes 4,4'-Di- (3" - amino- 4"- oxy - 6" - chlor-benzoylamino )- diphenyl mit 2 Mol 2-Acetylamino-6-oxy-naph- thalin-8-sulfonsäure in alkalischem Medium vereinigt. 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 - 6 "- chlorobenzoylamino) - diphenyl with 2 moles of 2 Acetylamino-6-oxy-naphthalene-8-sulfonic acid combined in an alkaline medium. Der erhaltene neue Disazofarbstoff stellt ein dunkles Pulver dar, das sich in Wasser mit violetter und -in konzentrierter Schwefelsäure mit roter Farbe löst und Fasern aus natür licher oder regenerierter Cellulose naehgekup- fert in rein violetten Tönen anfärbt, welche vorzügliche Echtheiten aufweisen. The new disazo dye obtained is a dark powder which dissolves in water with violet and concentrated sulfuric acid with a red color and dyes fibers made of natural or regenerated cellulose in pure violet shades, which have excellent fastness properties.
CH267289D 1947-09-15 1947-09-15 Process for the preparation of a copper-compatible polyazo dye. CH267289A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH261632T 1947-09-15
CH267289T 1947-09-15

Publications (1)

Publication Number Publication Date
CH267289A true CH267289A (en) 1950-03-15

Family

ID=25730495

Family Applications (1)

Application Number Title Priority Date Filing Date
CH267289D CH267289A (en) 1947-09-15 1947-09-15 Process for the preparation of a copper-compatible polyazo dye.

Country Status (1)

Country Link
CH (1) CH267289A (en)

Similar Documents

Publication Publication Date Title
CH286500A (en) Process for the preparation of a monoazo dye.
CH238459A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267289A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267286A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267287A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267288A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267279A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267283A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267285A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267284A (en) Process for the preparation of a copper-compatible polyazo dye.
CH265728A (en) Process for the preparation of a copper-compatible polyazo dye.
CH265724A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267281A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267282A (en) Process for the preparation of a copper-compatible polyazo dye.
CH267280A (en) Process for the preparation of a copper-compatible polyazo dye.
CH265729A (en) Process for the preparation of a copper-compatible polyazo dye.
CH293866A (en) Process for the preparation of a copper-compatible polyazo dye.
CH265722A (en) Process for the preparation of a copper-compatible polyazo dye.
CH293868A (en) Process for the preparation of a copper-compatible polyazo dye.
CH293869A (en) Process for the preparation of a copper-compatible polyazo dye.
CH293865A (en) Process for the preparation of a copper-compatible polyazo dye.
CH293861A (en) Process for the preparation of a copper-compatible polyazo dye.
CH332043A (en) Process for the preparation of a disazo dye
CH309428A (en) Process for the preparation of a copperable disazo dye.
CH282261A (en) Process for the preparation of a monoazo dye.