DE452214C - Method of coloring mother-of-pearl - Google Patents
Method of coloring mother-of-pearlInfo
- Publication number
- DE452214C DE452214C DEI27383D DEI0027383D DE452214C DE 452214 C DE452214 C DE 452214C DE I27383 D DEI27383 D DE I27383D DE I0027383 D DEI0027383 D DE I0027383D DE 452214 C DE452214 C DE 452214C
- Authority
- DE
- Germany
- Prior art keywords
- pearl
- mother
- coloring mother
- coloring
- ammonia
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Landscapes
- Coloring (AREA)
Description
Verfahren zum Färben von Perlmutter. Bei den gebräuchlichen Verfahren zum Färben von Perlmutter mit basischen Farbstoffen unter Zuhilfenahme von Ammoniak oder Silbernitrat zeigen sich häufig nachteilige Erscheinungen. Beim Ammoniak z. B. werden eine Reihe von basischen Farben überhaupt nicht aufgenommen, während bei Verwendung von Silbernitrat bisweilen nach kurzer Zeit infolge Bildung von Schwefelsilber Dunkelfärbung auftritt.Method of dyeing mother-of-pearl. With the usual procedures for coloring mother-of-pearl with basic dyes with the aid of ammonia or silver nitrate often show adverse phenomena. When ammonia z. B. a number of basic colors are not absorbed at all, while at Use of silver nitrate sometimes after a short time due to the formation of sulfur silver Darkening occurs.
Es wurde nun gefunden, daß man durch Vorbehandlung der Perlmuttergegenstände mit Formaldehyd die obengenannten Mängel beseitigen und obendrein Färbungen von bedeutend größerer Gleichmäßigkeit und Schönheit erzielen kann. Beispiel. Das Perlmutter wird einer mehrtägigen Vorbehandlung mit 3o- bis 4oprozentiger Formalinlösung unterworfen, mit Methylviolett in etwa iprozentiger Lösung gefärbt und gut gewaschen.It has now been found that by pretreating the mother-of-pearl objects Use formaldehyde to eliminate the above-mentioned defects and, on top of that, the coloration of can achieve significantly greater uniformity and beauty. Example. The mother-of-pearl is subjected to a pretreatment for several days with 3 to 4 percent formalin solution, Stained with methyl violet in about 1 percent solution and washed well.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI27383D DE452214C (en) | 1926-02-06 | 1926-02-06 | Method of coloring mother-of-pearl |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI27383D DE452214C (en) | 1926-02-06 | 1926-02-06 | Method of coloring mother-of-pearl |
Publications (1)
Publication Number | Publication Date |
---|---|
DE452214C true DE452214C (en) | 1927-11-08 |
Family
ID=7186762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEI27383D Expired DE452214C (en) | 1926-02-06 | 1926-02-06 | Method of coloring mother-of-pearl |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE452214C (en) |
-
1926
- 1926-02-06 DE DEI27383D patent/DE452214C/en not_active Expired
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