DE402501C - Process for the production of color by oxidation - Google Patents

Process for the production of color by oxidation

Info

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
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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
Application number
DEW61789D
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German (de)
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Individual
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Individual
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.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to DEW61789D priority Critical patent/DE402501C/en
Application granted granted Critical
Publication of DE402501C publication Critical patent/DE402501C/en
Expired legal-status Critical Current

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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

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  • 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. Beispiel: i oo g Katechuextrakt, ioo g Wasser, 66o g Stärketragantverdickung, 5o g Aluminiumsulfat, 5o g Chromazetat 30°, 2o g Natriumchlorat, 2o g p-Phenylendiaminlösung, bestehend aus 2 g Paramin, 18 g Essigsäure, 20. Die Ware wird mit dieser Mischung bedruckt, gedämpft und gespült.The use of diamines eliminates all of the disadvantages mentioned above and gives rich and clear colors. Example: i oo g catechism extract, 100 g water, 66o g starch carrier thickening, 5o g aluminum sulfate, 5o g chromium acetate 30 °, 2o g sodium chlorate, 2o g p-phenylenediamine solution, consisting of 2 g paramin, 18 g acetic acid, 20th The goods are printed, steamed and rinsed with this mixture.

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)

PATENTANSPRUCH: Verfahren zur Erzeugung von Färbungen durch Oxydation, dadurch gekennzeichnet, daß hydroxylhaltige oxydierbare Farbstoffe, wie Gerbstoffe, Gerbstoffsäuren, Blauholz, Brasilin in Gegenwart aromatischer p-Diamine oder Aminophenole, gegebenenfalls unter Zusatz katalytisch wirkender Metallsalze oxydiert werden. PATENT CLAIM: Process for producing dyeings by oxidation, characterized in that hydroxyl-containing oxidizable dyes such as tannins, tanning acids, logwood, braziline are oxidized in the presence of aromatic p-diamines or aminophenols, optionally with the addition of catalytically active metal salts.
DEW61789D 1922-08-03 1922-08-03 Process for the production of color by oxidation Expired DE402501C (en)

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)

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