AT109675B - Process for dyeing yarns or fabrics of vegetable origin with vat dyes. - Google Patents

Process for dyeing yarns or fabrics of vegetable origin with vat dyes.

Info

Publication number
AT109675B
AT109675B AT109675DA AT109675B AT 109675 B AT109675 B AT 109675B AT 109675D A AT109675D A AT 109675DA AT 109675 B AT109675 B AT 109675B
Authority
AT
Austria
Prior art keywords
fabrics
dyeing
vegetable origin
vat dyes
dyeing yarns
Prior art date
Application number
Other languages
German (de)
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Application granted granted Critical
Publication of AT109675B publication Critical patent/AT109675B/en

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  • Treatment Of Fiber Materials (AREA)
  • Coloring (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zum Durchfärben von Garnen oder Geweben pflanzlichen Ursprunges mit
KÜpenfarbstoffen. 



   Das Färben mit Küpenfarben auf   Baumwolle   bietet insofern Schwierigkeiten, als diese Farbstoffe stärker gedrehte Garne oder fester geschlagene Baumwoll- oder Leinengewebe nur sehr unvoll-   ständig durchfärben, ein Übelstand. der sich   bisher durch Zusätze zum Färbebad nicht vollständig beseitigen liess. 



   Es wurde nun die überraschende Beobachtung gemacht, dass man beim Färben der Baumwollgarne, bzw.-gewebe unter höherem Druck eine vollkommen gleichmässige   Durchfärbung   auch mit solchen Küpenfarbstoffen erreicht, die beim Färben unter gewöhnliehen Verhältnissen bisher die ungünstigsten Resultate gezeigt haben. Das Färben erfolgt beispielsweise in der Art, dass man die Garne in einem geschlossenen Färbeapparat packt oder die Gewebe in entsprechender Weise auf perforierte Bäume aufrollt, hierauf den Apparat   schliesst.   das Färbebad mittels zugehöriger Pumpe durch das Material bis zur   vollständigen Füllung   des Apparates drÜckt.

   Hierauf erhöht man mittels einer Kohlensäureoder Stickstoffbombe oder mit Hilfe einer   Luftpumpe den Druck   auf 2-3 Atm. und lässt die Flotte während   -l   Stunde durch das Material zirkulieren. Nach beendigtem Färben lässt man das Farbebad ab, spült mit kaltem Wasser, oxydiert durch Einblasen von Luft oder durch Behandeln mit Sauerstoff abgebenden Mitteln und seift hierauf   gründlich.   

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for through-dyeing yarns or fabrics of vegetable origin with
Vat dyes.



   Dyeing with vat dyes on cotton presents difficulties insofar as these dyes only incompletely dye through more tightly twisted yarns or more tightly twisted cotton or linen fabrics, a drawback. which up to now could not be completely eliminated by adding to the dye bath.



   The surprising observation has now been made that when dyeing cotton yarns or fabrics under higher pressure, a completely uniform dyeing is achieved, even with those vat dyes which have so far shown the most unfavorable results when dyeing under usual conditions. The dyeing takes place, for example, in such a way that the yarns are packed in a closed dyeing apparatus or the fabric is rolled up in a corresponding manner on perforated trees, then the apparatus is closed. the dyebath by means of the associated pump presses through the material until the apparatus is completely filled.

   The pressure is then increased to 2-3 atm using a carbon dioxide or nitrogen bomb or an air pump. and lets the liquor circulate through the material for 1 hour. When the dyeing is finished, the dye bath is drained off, rinsed with cold water, oxidized by blowing in air or by treatment with oxygen-releasing agents, and then soaped thoroughly.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zum Durchfärben von Garnen oder Geweben pflanzlichen Ursprunges mit Küpenfarb- EMI1.1 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for dyeing yarns or fabrics of vegetable origin with vat dye EMI1.1 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT109675D 1925-10-22 1925-10-22 Process for dyeing yarns or fabrics of vegetable origin with vat dyes. AT109675B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT109675T 1925-10-22

Publications (1)

Publication Number Publication Date
AT109675B true AT109675B (en) 1928-05-25

Family

ID=3625898

Family Applications (1)

Application Number Title Priority Date Filing Date
AT109675D AT109675B (en) 1925-10-22 1925-10-22 Process for dyeing yarns or fabrics of vegetable origin with vat dyes.

Country Status (1)

Country Link
AT (1) AT109675B (en)

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