AT70946B - Process for producing colored tannins with vat dyes. - Google Patents
Process for producing colored tannins with vat dyes.Info
- Publication number
- AT70946B AT70946B AT70946DA AT70946B AT 70946 B AT70946 B AT 70946B AT 70946D A AT70946D A AT 70946DA AT 70946 B AT70946 B AT 70946B
- Authority
- AT
- Austria
- Prior art keywords
- vat dyes
- producing colored
- tannins
- colored tannins
- colored
- Prior art date
Links
Landscapes
- Coloring (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Erzeugung von Tanninbuntätzen mit Küpenfarbstoffen.
Die Verwendung der Küpenfarbstoffe als Buntätzen im Tanninätzartikel bietet insofern Schwierigkeiten, als diese Buntätzen (Buntreserven) sehr leicht weiss rändern, was darauf zurückzuführen ist, dass die in den Buntätzen enthaltene, zum Ätzen erforderliche Natronlauge beim Dämpfen leichter ausfliesst als der Farbstoff. Durch eine Abänderung der
EMI1.1
zur Druckfarbe kann dieses Rändern nicht mit Sicherheit vermieden werden.
Es ist nun gefunden worden, dass man durch eine Präparation der tannierten Ware mit essigsaurer Tonerde vor dem Drucken das Auslaufen der Natronlauge vollkommen verhindern kann, ohne dass die Buntätzen belbst irgendwie ungünstig beeinflusst werden.
Beispiel :
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zum Schluss in ublicher Weise mit einem basischen Farbstoff, z. B. Echtbaumwollblau TLK, überfarbt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Process for producing colored tannins with vat dyes.
The use of the vat dyes as colored etching in the tannin etching article presents difficulties insofar as these colored etching (color reserves) have a very slight white edge, which is due to the fact that the caustic soda contained in the colored etching and required for etching flows out more easily than the dye. By changing the
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in relation to the printing ink, these margins cannot be avoided with certainty.
It has now been found that by preparing the tanned goods with acetic alumina before printing, it is possible to completely prevent the sodium hydroxide from leaking out without the colored etchings themselves being adversely affected in any way.
Example:
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finally in the usual way with a basic dye, e.g. B. Real cotton blue TLK, colored over.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE70946X | 1914-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT70946B true AT70946B (en) | 1916-01-10 |
Family
ID=5635635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT70946D AT70946B (en) | 1914-03-06 | 1914-05-22 | Process for producing colored tannins with vat dyes. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT70946B (en) |
-
1914
- 1914-05-22 AT AT70946D patent/AT70946B/en active
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