CH238448A - Process for the production of a metallizable dye. - Google Patents

Process for the production of a metallizable dye.

Info

Publication number
CH238448A
CH238448A CH238448DA CH238448A CH 238448 A CH238448 A CH 238448A CH 238448D A CH238448D A CH 238448DA CH 238448 A CH238448 A CH 238448A
Authority
CH
Switzerland
Prior art keywords
acid
dye
production
metallizable
metallizable dye
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 CH238448A publication Critical patent/CH238448A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B56/00Azo dyes containing other chromophoric systems
    • C09B56/04Stilbene-azo dyes

Description

  

      Zusatzpatent    zum     Hauptpatent        Nr.236583.       Verfahren zur Herstellung eines     metallisierbaren    Farbstoffes.    Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines     metalli-          sierbaren    Farbstoffes.

   Das Verfahren ist da  durch gekennzeichnet, dass die     Monoazofarb-          stoffe        4-Nitro-4'-aminostilben-2,2'-disulfon-          säure    >     2-Oxy-3-naphthoesäure    und 2  Amino-l-oxybenzol-4-sulfonsäure     ->m-Ani-          sidin    in alkalischer Lösung     miteinander    kon  densiert werden.  



  Der neue Farbstoff stellt ein dunkles Pul  ver dar. Er löst sich in Wasser mit roter, in       conc.        Schwefelsäure    mit violetter Farbe und  färbt     Cellulosefasern    in trüben Bordeaux  tönen. Durch Nachbehandlung der Färbungen  mit Kupfersalzen werden licht- und sehr gut  wasserechte, blaugraue Töne erhalten.  



       Beispiel:     62,1 Teile des Farbstoffes aus     diazotierter          4-Nitro-4'-aminostilben-2,2'-disulfonsäure    und       2-Oxy-3-naphthoesäure    und 28 Teile des       Aminoazofarbstoffes    aus     diazotierter        2-          Amino-l-oxybenzol-4-sulfonsäure    und     m-Ani-          si.din    werden in 1500- Teilen Wasser und 250    Teilen Natronlauge 36      B6    12-l5     Stunden     bei Siedetemperatur unter     Rückfluss    oder 10  bis 12 Stunden     im     <RTI  

   ID="0001.0032">   Autoklaven    bei 105-110   kondensiert. Nach dem     Abkühlen    wird mit  Salzsäure     neutralisiert,    mit Kochsalz vollends  ausgefällt,     abfiltriert    und getrocknet.



      Additional patent to main patent No. 236583. Process for the production of a metallizable dye. The present patent relates to a process for producing a metallizable dye.

   The process is characterized in that the monoazo dyes 4-nitro-4'-aminostilbene-2,2'-disulfonic acid> 2-oxy-3-naphthoic acid and 2-amino-1-oxybenzene-4-sulfonic acid -> m-anisidine are condensed together in an alkaline solution.



  The new dye is a dark powder. It dissolves in water with red, in conc. Sulfuric acid with a violet color and dyes cellulose fibers in cloudy Bordeaux tones. After-treating the dyeings with copper salts, lightfast and very waterfast, blue-gray shades are obtained.



       Example: 62.1 parts of the dye from diazotized 4-nitro-4'-aminostilbene-2,2'-disulfonic acid and 2-oxy-3-naphthoic acid and 28 parts of the aminoazo dye from diazotized 2-amino-1-oxybenzene-4- Sulphonic acid and m-anisi.din are dissolved in 1500 parts of water and 250 parts of sodium hydroxide solution 36 B6 for 12-15 hours at the boiling point under reflux or for 10 to 12 hours at <RTI

   ID = "0001.0032"> Autoclave condensed at 105-110. After cooling, it is neutralized with hydrochloric acid, completely precipitated with common salt, filtered off and dried.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines metalli- sierbaren Farbstoffes, dadurch gekennzeich- ret, dass die Monoazofarbstoffe 4-Nitro-4'- aminostilben-2,2'-disulfonsäure -> 2-Oxy-3- naphthoesäure und 2-Amino-l-ogybenzol-4- sulfonsäure-> m-Anisidin in alkalischer Lö sung miteinander kondensiert werden. Der neue Farbstoff stellt ein dunkles Pul ver dar. PATENT CLAIM: Process for the production of a metallizable dye, characterized in that the monoazo dyes 4-nitro-4'-aminostilbene-2,2'-disulfonic acid -> 2-oxy-3-naphthoic acid and 2-amino-l- ogybenzene-4-sulfonic acid-> m-anisidine are condensed with one another in an alkaline solution. The new dye is a dark powder. Er löst sich in Wasser mit roher, in conc. Schwefelsäure mit violetter Farbe und färbt Cellulosefasern in trüben Bordeaux tönen. Durch Nachbehandlung der Färbungen mit Kupfersalzen werden licht- und sehr gut wasserechte, blaugraue Töne erhalten. It dissolves in water with raw, in conc. Sulfuric acid with a violet color and dyes cellulose fibers in cloudy Bordeaux tones. After-treating the dyeings with copper salts, lightfast and very waterfast, blue-gray shades are obtained.
CH238448D 1942-12-22 1942-12-22 Process for the production of a metallizable dye. CH238448A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH238448T 1942-12-22
CH236583T 1942-12-22

Publications (1)

Publication Number Publication Date
CH238448A true CH238448A (en) 1945-07-15

Family

ID=25728123

Family Applications (1)

Application Number Title Priority Date Filing Date
CH238448D CH238448A (en) 1942-12-22 1942-12-22 Process for the production of a metallizable dye.

Country Status (1)

Country Link
CH (1) CH238448A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681926A (en) * 1951-07-17 1954-06-22 American Cyanamid Co Dichlorodiaminostilbenedisulfonic acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681926A (en) * 1951-07-17 1954-06-22 American Cyanamid Co Dichlorodiaminostilbenedisulfonic acids

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