DE402501C - Process for the production of color by oxidation - Google Patents
Process for the production of color by oxidationInfo
- Publication number
- DE402501C DE402501C DEW61789D DEW0061789D DE402501C DE 402501 C DE402501 C DE 402501C DE W61789 D DEW61789 D DE W61789D DE W0061789 D DEW0061789 D DE W0061789D DE 402501 C DE402501 C DE 402501C
- Authority
- DE
- Germany
- Prior art keywords
- oxidation
- production
- diamines
- color
- aminophenols
- 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
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/32—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using oxidation dyes
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Description
Verfahren zur Erzeugung von Färbungen durch Oxydation. Aromatische Diamine, wie p-Phenylendiamin, hat man als katalytisch wirkenden Stoff bisher nur bei der Erzeugung von Anilinschwarz mit angewendet (Patentschrift 204514, 223¢o4). Das vorliegende Verfahren besteht darin, daß man hydroxylhaltige oxydierbare Farbstoffe, wie Gerbstoffe, Gerbstoffsäuren, Blauholz (Hämatein, Hämatoxylin), Brasilin, Kino, mit aromatischen Aminen, wie z. B. p-Diaminen oder Aminophenolen, oxydiert.Process for producing colorations by oxidation. Aromatic Diamines, such as p-phenylenediamine, have so far only been used as a catalytically active substance used in the production of aniline black (patent specification 204514, 223 [o4). The present process consists in that hydroxyl-containing oxidizable dyes, such as tannins, tannic acids, logwood (hematein, hematoxylin), Brazil, cinema, with aromatic amines, such as. B. p-diamines or aminophenols, oxidized.
Der Katechüextrakt wird gewöhnlich auf dem Gewebe durch Natriumchlörat mittels Katalysatoren, vorzugsweise Kupfersulfat, oxydiert. Die Anwendung von Kupfersalzen verursacht jedoch manche Schwierigkeiten durch ihre schädliche Wirkung auf die Rakel. Um die Oxydation von Katechu ohne Kupfersalze zu vervollständigen, wird die Ware zuweilen mit Bichromat bearbeitet. Aber diese Bearbeitung bietet den Nachteil einer überflüssigen Passage.The catechus extract is usually added to the fabric with sodium chlorate oxidized by means of catalysts, preferably copper sulfate. The application of copper salts however, causes some troubles by its deleterious effect on the squeegee. To complete the oxidation of catechu without copper salts, the goods are made sometimes processed with bichromate. But this processing has the disadvantage of a superfluous passage.
Die Anwendung von Diaminen befreit von allen oben angeführten Nachteilen
und gibt satte und klare Färbungen.
An Stelle des Natriumchlorates können auch andere Oxydationsmittel verwendet werden, z. B. Perchlorate, Persalze.Other oxidizing agents can also be used in place of sodium chlorate be used, e.g. B. perchlorates, persalts.
Ebenso wirken die Diamine bei der Färberei mittels anderer natürlicher Farbstoffe, die durch Oxydation verbessert werden (z. B. Blauholzschwarz).Likewise, the diamines have a more natural effect in dyeing using others Colorants that are improved by oxidation (e.g. blue wood black).
Das Verfahren ist auch zum Foulardieren benutzbar, indem man das Beispiel entsprechend verändert. Man erhält Färbungen, welche mit Reserve gedruckt werden können.The method can also be used for padding by following the example changed accordingly. Dyes are obtained which are printed with a reserve can.
Als Diamine kann man z. B. p-Phenylendiamin, Benzidin, Dianisidin u. dgl. benutzen. Man kann sie durch Aminophenole ersetzen.As diamines you can z. B. p-phenylenediamine, benzidine, dianisidine and the like. They can be replaced by aminophenols.
In vielen Fällen ist es von Nutzen, zu den obenerwähnten Lösungen Katalysatoren hinzuzufügen, z. B. Salze von Chrom, Aluminium (z. B. Alaune), Eisen, Kupfer, Mangan.In many cases it is useful to use the solutions mentioned above Add catalysts, e.g. B. Salts of chromium, aluminum (e.g. alums), iron, Copper, manganese.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW61789D DE402501C (en) | 1922-08-03 | 1922-08-03 | Process for the production of color by oxidation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW61789D DE402501C (en) | 1922-08-03 | 1922-08-03 | Process for the production of color by oxidation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE402501C true DE402501C (en) | 1924-09-15 |
Family
ID=7606403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEW61789D Expired DE402501C (en) | 1922-08-03 | 1922-08-03 | Process for the production of color by oxidation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE402501C (en) |
-
1922
- 1922-08-03 DE DEW61789D patent/DE402501C/en not_active Expired
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