CH251289A - Process for the preparation of a new bright acid dye of the anthraquinone series. - Google Patents
Process for the preparation of a new bright acid dye of the anthraquinone series.Info
- Publication number
- CH251289A CH251289A CH251289DA CH251289A CH 251289 A CH251289 A CH 251289A CH 251289D A CH251289D A CH 251289DA CH 251289 A CH251289 A CH 251289A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- acid dye
- anthraquinone series
- new bright
- bright acid
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Procédé de préparation d'un nouveau colorant acide brillant de la série anthraquinonique. Le présent brevet a pour objet un procédé de préparation d'un nouveau colorant de la série anthraquinoniquo, selon lequel on con dense l'acide 1-amino-4-b.romanthraquinone- 2,6-disulfonique avec l'1-amino-3,4-diméthyl- cyclohegane.
Le colorant ainsi obtenu a pour formule
EMI0001.0009
il teint la laine et les fibres, animales, les fibres artificielles à base de superpolyamides en ton bleu verdâtre vif.
Les teintures qu'il fournit sons; égales, résistantes à la, lumière et au lavage, et stables à la lumière artificielle. Exemple: Les parties indiquées sont en poids.
On mélange<B>23,8</B> parties d'1-amino-4- bromanthraquinone-2,6-disulfonate de potas sium technique, 40 parties d'1-amino-3,4-di- m6thyl-cyclohexane, 6 parties de soude caus tique 33%, 0,4 parties de poudre de cuivre, 40 parties d'alcool et 200 parties d'eau. On agite et chauffe à 55-65 en faisant passer un lent courant d'azote et en maintenant la même température jusqu'à ce que la masse en réaction soit devenue bleue. On sépare le co lorant formé selon les méthodes connues.
Il se présente sous forme de poudre cristal line bleue, se dissolvant facilement dans l'eau en bleu verdâtre, sa solution dans SO4H, est incolore, mais vire au bleu rou geâtre intense par adjonction de p-formal- déhyde.
Les quantités d'amine, d'alcali, de cata lyseur, de diluant peuvent varier dans de larges limites. L'introduction du dérivé anthraquinonique peut se faire aussi par pe tites portions au cours de quelques heures.
Process for the preparation of a new bright acid dye of the anthraquinone series. The present patent relates to a process for the preparation of a novel dye of the anthraquinoniquo series, according to which 1-amino-4-b.romanthraquinone-2,6-disulfonic acid is con dense with 1-amino- 3,4-dimethyl-cyclohegane.
The dye thus obtained has the formula
EMI0001.0009
it dyes wool and animal fibers, artificial fibers based on superpolyamides in a bright greenish blue tone.
The tinctures which it supplies are; equal, resistant to light and washing, and stable to artificial light. Example: Parts shown are by weight.
Mix <B> 23.8 </B> parts of 1-amino-4-bromanthraquinone-2,6-disulfonate of technical potassium, 40 parts of 1-amino-3,4-dimethyl-cyclohexane , 6 parts of 33% causative soda, 0.4 parts of copper powder, 40 parts of alcohol and 200 parts of water. Stir and heat to 55-65 with a slow stream of nitrogen passing through and maintaining the same temperature until the reaction mass has turned blue. The colorant formed is separated off according to known methods.
It is presented in the form of a blue crystal powder, easily dissolving in water in greenish blue, its solution in SO4H, is colorless, but turns to intense reddish blue by addition of p-formaldehyde.
The amounts of amine, alkali, catalyst catalyst, diluent can vary within wide limits. The introduction of the anthraquinone derivative can also be done in small portions over the course of a few hours.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH246258T | 1944-10-19 | ||
CH251289T | 1944-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH251289A true CH251289A (en) | 1947-10-15 |
Family
ID=25729097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH251289D CH251289A (en) | 1944-10-19 | 1944-10-19 | Process for the preparation of a new bright acid dye of the anthraquinone series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH251289A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4267115A (en) * | 1968-04-08 | 1981-05-12 | Sandoz Ltd. | Anthraquinone compounds |
-
1944
- 1944-10-19 CH CH251289D patent/CH251289A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4267115A (en) * | 1968-04-08 | 1981-05-12 | Sandoz Ltd. | Anthraquinone compounds |
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