CH287763A - Process for the production of dry vat dye preparations and preparation produced by this process. - Google Patents

Process for the production of dry vat dye preparations and preparation produced by this process.

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Publication number
CH287763A
CH287763A CH287763DA CH287763A CH 287763 A CH287763 A CH 287763A CH 287763D A CH287763D A CH 287763DA CH 287763 A CH287763 A CH 287763A
Authority
CH
Switzerland
Prior art keywords
production
vat dye
dry
dye preparations
preparation produced
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
Original Assignee
Ciba 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 Ciba Geigy filed Critical Ciba Geigy
Publication of CH287763A publication Critical patent/CH287763A/en

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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
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0077Preparations with possibly reduced vat, sulfur or indigo dyes

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 276120.    <B>Verfahren zur Herstellung von</B>     trockenen        Küpenfarbstoffpräparaten   <B>und nach diesem</B>  <B>Verfahren hergestelltes Präparat.</B>    Gegenstand des Hauptpatentes ist ein Ver  fahren zur Herstellung von trockenen     Küpen-          farbstoffpräparaten    durch Trocknen von       Farbstoffteigen,    die     Küpenfarbstoffe    in zum  Drucken geeigneter Verteilungsform enthal  ten, bei welchem man den Teigen vor dem  Trocknen     alkaliunempfindliche,    viskos wasser  lösliche     Äthercarbonsäuren    hochpolymerer  Kohlenhydrate bzw.

   wasserlösliche Salze der  selben in einer Menge     zusetzt,    die mindestens       101/o        das        Farbstofftrockengewichtes    beträgt,  sowie ein nach diesem Verfahren hergestelltes  Präparat.  



  Es wurde nun gefunden, dass man zur  Durchführung     des    im Hauptpatent geschütz  ten Verfahrens zweckmässig solche Äthercar  bonsäuren hochpolymerer Kohlenhydrate bzw.  wasserlösliche Salze derselben verwendet, die  sich von     Dextrin    bzw. von solchen hochpoly  meren Kohlenhydraten ableiten, deren Mole  külgrösse derjenigen von     Dextrin    mindestens  gleichkommt.  



  Während die aus     Dextrin    selbst erhaltenen       Äthercarbonsäuren    in wässeriger Lösung be  reits eine     gewisse    nicht unerhebliche Viskosität.  zeigen und brauchbar sind, ist es zweckmässig,  solche     Äthercarbonsäuren    zu verwenden, deren       wässerige    Lösungen eine noch höhere Viskosi  tät besitzen. Solche     Äthercarbonsäuren    leiten  sich beispielsweise von nicht abgebauter Stärke  oder von     Cellulose    ab.

      <I>Beispiel 1:</I>  150 Teile eines wässerigen     Presskuchens     von     4,5'-Di-(benzoylamino)-1,1'-dianthrimid-          carbazol        mit        einem        Trockengehalt        von        18,7%          werden        mit    8     Teilen        50%iger        Sulfitablauge     bis zur Erreichung der erforderlichen Fein  heit in einer Kugelmühle gemahlen.

   Nach  Zugabe von 18,4 Teilen     celluloseglykolsau-          rem    Natrium in Form einer wässerigen  Lösung wird eine weitere Stunde in der Kugel  mühle gemahlen und .die entstandene Paste im       Zerstäubertrockner    getrocknet.  



  <I>Beispiel 2:</I>  200     Teile    eines wässerigen     Presskuchens    mit       einem        Gehalt        von        15%        Indanthron        (Schulz-          Farbstofftabellen        Nr.1228)    werden mit 3 Tei  len     dinaphthylmethandisulfonsaurem    Natrium  bis zur Erreichung der erforderlichen Fein  heit in der Kugelmühle nass gemahlen.

   Nach  Zugabe von 7,5 Teilen     celluloseglykolsaurem     Natrium in Form einer wässerigen Lösung       und        48        Teilen        50%iger        Sulfitablauge        wird     eine weitere Stunde in der Kugelmühle ge  mischt und die entstandene Paste im     Zerstäu-          bertrockner    getrocknet. Das erhaltene     Farb-          stofftrockenpräparat    ist besonders für das  Färben nach dem Pigmentverfahren sehr gut.  geeignet.  



  Nach der gleichen Vorschrift kann auch  der Farbstoff des vorhergehenden Beispiels  verarbeitet werden.



  <B> Additional patent </B> to main patent no. 276120. <B> Process for the production of </B> dry vat dye preparations <B> and preparation produced by this </B> <B> process. </B> Subject matter of The main patent is a process for the production of dry vat dye preparations by drying dye doughs that contain vat dyes in a distribution form suitable for printing, in which the dough is mixed with alkali-insensitive, viscous water-soluble ether carboxylic acids of highly polymeric carbohydrates or carbohydrates before drying.

   water-soluble salts are added to the same in an amount which is at least 101 / o of the dry weight of the dye, as well as a preparation produced by this process.



  It has now been found that in order to carry out the process protected in the main patent, it is advisable to use those ether-carboxylic acids of high-polymer carbohydrates or water-soluble salts thereof, which are derived from dextrin or from those hochpoly meren carbohydrates whose molecular size is at least equal to that of dextrin.



  While the ether carboxylic acids obtained from dextrin itself already have a certain not inconsiderable viscosity in aqueous solution. show and are useful, it is advisable to use those ether carboxylic acids whose aqueous solutions have an even higher viscosity. Such ether carboxylic acids are derived, for example, from undegraded starch or from cellulose.

      Example 1: 150 parts of an aqueous presscake of 4,5'-di- (benzoylamino) -1,1'-dianthrimide carbazole with a dry content of 18.7% are mixed with 8 parts of 50% strength Sulphite waste liquor ground in a ball mill until the required fineness is achieved.

   After the addition of 18.4 parts of sodium cellulose glycol in the form of an aqueous solution, it is ground for a further hour in the ball mill and the resulting paste is dried in an atomizer dryer.



  <I> Example 2: </I> 200 parts of an aqueous presscake with a content of 15% indanthrone (Schulz color table No. 1228) are wet-ground with 3 parts of sodium dinaphthylmethanedisulphonic acid until the required fineness is achieved in the ball mill.

   After adding 7.5 parts of sodium cellulose glycol in the form of an aqueous solution and 48 parts of 50% strength sulphite waste liquor, the mixture is mixed in the ball mill for a further hour and the resulting paste is dried in an atomizer dryer. The dry dye preparation obtained is particularly good for dyeing by the pigment process. suitable.



  The dye of the previous example can also be processed according to the same instructions.

 

Claims (1)

PATENTANSPRÜCHE: I. Verfahren zur Herstellung von trockenen Küpenfarbstoffpräparaten gemäss Patentan spruch I des Hauptpatentes, dadurch gekenn zeichnet, dass man solche Äthercarbonsäuren hochpolymerer Kohlenhydrate bzw. wasser lösliche Salze derselben verwendet, die .sich von Dextrin bzw. von solchen hochpolymeren Kohlenhydraten ableiten, deren Molekülgrösse derjenigen von Dextrin mindestens gleich kommt. 1I. Trockenes Küpenfarbstoffpräparat, er halten nach dem Verfahren gemäss Patentan spruch I. PATENT CLAIMS: I. Process for the production of dry vat dye preparations according to patent claim I of the main patent, characterized in that such ether carboxylic acids of high-polymer carbohydrates or water-soluble salts thereof are used, which are derived from dextrin or from such high-polymer carbohydrates whose molecular size at least equal to that of dextrin. 1I. Dry vat dye preparation, he keep according to the method according to patent claim I.
CH287763D 1949-11-29 1949-11-29 Process for the production of dry vat dye preparations and preparation produced by this process. CH287763A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH276120T 1949-11-29
CH287763T 1949-11-29

Publications (1)

Publication Number Publication Date
CH287763A true CH287763A (en) 1952-12-15

Family

ID=25731674

Family Applications (1)

Application Number Title Priority Date Filing Date
CH287763D CH287763A (en) 1949-11-29 1949-11-29 Process for the production of dry vat dye preparations and preparation produced by this process.

Country Status (1)

Country Link
CH (1) CH287763A (en)

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