CH131255A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH131255A
CH131255A CH131255DA CH131255A CH 131255 A CH131255 A CH 131255A CH 131255D A CH131255D A CH 131255DA CH 131255 A CH131255 A CH 131255A
Authority
CH
Switzerland
Prior art keywords
blue
dye
production
chromium
azo dye
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 CH131255A publication Critical patent/CH131255A/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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/38—Preparation from compounds with —OH and —COOH adjacent in the same ring or in peri position
    • C09B45/40—Chromium compounds
    • 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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen  wertvollen Farbstoff erhält, wenn man den       o-Oxyazofarbstoff,    welcher durch Vereini  gen von     diazotiertem        5-Nitro-2-amino-l-          plienol    mit     2-(4'-Oxy-5'-carboxy)-phenyla-          mino-5-oxynaphtaIin-7-sulfosäure    entsteht,  mit Chrom abgebenden Mitteln behandelt..

    Der neue Farbstoff stellt ein dunkles Pul  ver dar,     löst    sich in Wasser mit blauer, in  verdünnten Alkalien mit grünblauer, in  konzentrierter Schwefelsäure mit blauvio  letter Farbe auf und färbt Baumwolle aus  neutralem oder alkalischem     Glaubersalzba.de     in blauen Tönen mit guten Echtheitseigen  schaften.  



  <I>Beispiel:</I>  Man kombiniert die     Diazoverbindung    aus  15,4 Teilen     5-Nitro-2-amino-l-phenol    mit  37,7 Teilen     2-(4'-Oxy-5'-carboxy)-phenyla-          inino-5-oxynaphta.Iin-7-sulfosäure    in Gegen  wart von Alkalien und isoliert den Farbstoff  wie üblich. Er wird in 4000 Teilen heissem  Wasser gelöst, mit einer     Fluorehromlösung       entsprechend 22 Teilen     Cr203    versetzt und  20 bis 30 Stunden unter     Rückfluss    gekocht.  Durch Eindampfen und     Aussalzen    gewinnt  man die entstandene Chromverbindung.



  Process for the production of a new azo dye. It has been found that a new valuable dye is obtained if the o-oxyazo dye, which is obtained by combining diazotized 5-nitro-2-amino-l-plienol with 2- (4'-oxy-5'-carboxy) -phenyla- mino-5-oxynaphthaIine-7-sulfonic acid is produced, treated with chromium-releasing agents.

    The new dye is a dark powder, dissolves in water with blue, in dilute alkalis with green-blue, in concentrated sulfuric acid with blue-violet, and dyes cotton made from neutral or alkaline Glauber's salt in blue shades with good fastness properties.



  <I> Example: </I> The diazo compound is combined from 15.4 parts of 5-nitro-2-amino-1-phenol with 37.7 parts of 2- (4'-oxy-5'-carboxy) -phenyla- inino-5-oxynaphta.Iin-7-sulfonic acid in the presence of alkalis and isolates the dye as usual. It is dissolved in 4000 parts of hot water, mixed with a fluorine chromium solution corresponding to 22 parts of Cr203 and refluxed for 20 to 30 hours. The resulting chromium compound is obtained by evaporation and salting out.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Farbstoffes, dadurch gekennzeich net, dass man den o-Oxyazofarbstoff, wel cher durch Vereinigen von diazotiertem 5- Nitro-2-amino-l-phenol mit 2-(4'-Oxy-5'-car- boxy)- phenylamino- 5 -oxynaphtalin- 7 -sulf o- säure entsteht, mit Chrom abgebenden Mit teln behandelt. PATENT CLAIM: Process for the production of a chromium-containing dye, characterized in that the o-oxyazo dye, which is produced by combining diazotized 5-nitro-2-amino-1-phenol with 2- (4'-oxy-5 ' -car- boxy) - phenylamino- 5 -oxynaphthalene- 7 -sulfonic acid is formed, treated with agents that donate chromium. Der neue Farbstoff stellt ein dunkles Pulver dar, löst sich in Wasser mit blauer, in verdünnten Alkalien mit grün blauer, in konzentrierter Schwefelsäure mit blauvioletter Farbe auf und färbt Baum wolle aus neutralem oder alkalischem Glau- bersalzbade in blauen Tönen mit guten Echt- heitseigenschaften;. The new dye is a dark powder, dissolves in water with blue, in dilute alkalis with green-blue, in concentrated sulfuric acid with blue-violet color and colors cotton made from neutral or alkaline goat salt bath in blue shades with good fastness properties; .
CH131255D 1927-04-23 1927-04-23 Process for the production of a new azo dye. CH131255A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH131255T 1927-04-23
CH128006T 1927-08-19

Publications (1)

Publication Number Publication Date
CH131255A true CH131255A (en) 1929-01-31

Family

ID=25711016

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131255D CH131255A (en) 1927-04-23 1927-04-23 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH131255A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5274184A (en) * 1990-10-06 1993-12-28 Cassella Aktiengesellschaft Aryl sulphide, aryl sulphoxide and aryl sulphone compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5274184A (en) * 1990-10-06 1993-12-28 Cassella Aktiengesellschaft Aryl sulphide, aryl sulphoxide and aryl sulphone compounds

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