AT42840B - Process for etching indigo dyes. - Google Patents

Process for etching indigo dyes.

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Publication number
AT42840B
AT42840B AT42840DA AT42840B AT 42840 B AT42840 B AT 42840B AT 42840D A AT42840D A AT 42840DA AT 42840 B AT42840 B AT 42840B
Authority
AT
Austria
Prior art keywords
etching
indigo
indigo dyes
hydrosulfite
anthraquinone
Prior art date
Application number
Other languages
German (de)
Original Assignee
Kalle & Co 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
Priority claimed from DE1907213583D external-priority patent/DE213583C/de
Application filed by Kalle & Co Ag filed Critical Kalle & Co Ag
Application granted granted Critical
Publication of AT42840B publication Critical patent/AT42840B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zum Ätzen von   Indigofärbungen.   



   Das Ätzen von   Indigofärbungen   mit Hydrosulfit hat seither stets durchaus ungenügende Resultate ergeben, so dass sich dieses Ätzmittel im Indigodruck nicht einzuführen vermochte. 



  Es hat sich nun gezeigt, dass ein geringer Zusatz von Anthrachinon zu den Hydrosulfitdruckfarben bei Indigofärbungen die überraschende Wirkung hat, dass damit rein weisse Ätzen auf Indigo erzielt werden. Das Verfahren eignet sich ebenso zur llerstellung von   Huntätzen,   besonders mit Schwefelfarben. 



   Beispiel :
200 g Hydrosulfit N F conc. 



   200   9   Wasser
550 9   Britisbgurn-Verdickung l   : 1
50 9 Anthrachinon Teig   300/oig  
1 kg. 



   Diese Ätzfarbe wird auf den mit Indigo gefärbten Stoff gedruckt, 3 Minuten bei   101"C   im   Mather-Ptatt     gedämpft, darauf   durch Natronlauge von 20 Bé passiert und gewaschen. 

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



   <Desc / Clms Page number 1>
 



  Process for etching indigo dyes.



   The etching of indigo dyes with hydrosulfite has always given unsatisfactory results, so that this etchant could not be used in indigo printing.



  It has now been shown that a small addition of anthraquinone to the hydrosulfite printing inks has the surprising effect in indigo dyeings that pure white etchings are achieved on indigo. The process is also suitable for producing hunt etching, especially with sulfur inks.



   Example:
200 g hydrosulfite N F conc.



   200 9 water
550 9 Britisbgurn thickening l: 1
50 9 anthraquinone dough 300 / oig
1 kg.



   This etching color is printed on the indigo-dyed fabric, steamed for 3 minutes at 101 "C in the Mather-Ptatt, then passed through sodium hydroxide solution of 20 Bé and washed.

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

Claims (1)

PATENT ANSPRUCH : Verfahren zum Ätzen von Indigofärbungen durch Überführen des Indigos in seine lösliche Leukoverbindung mittels hydrosulfit und darauf folgendes Ablösen der Leuko- verbindung, dadurch gekennzeichnet, dass den Druckfarben Anthrachinon zugesetzt wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for etching indigo colorations by converting the indigo into its soluble leuco compound by means of hydrosulfite and then detaching the leuco compound, characterized in that anthraquinone is added to the printing inks. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT42840D 1907-12-11 1909-03-29 Process for etching indigo dyes. AT42840B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1907213583D DE213583C (en) 1907-12-11

Publications (1)

Publication Number Publication Date
AT42840B true AT42840B (en) 1910-06-25

Family

ID=5814006

Family Applications (1)

Application Number Title Priority Date Filing Date
AT42840D AT42840B (en) 1907-12-11 1909-03-29 Process for etching indigo dyes.

Country Status (1)

Country Link
AT (1) AT42840B (en)

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