Navy blue quaternary ammonium salt bisazo chemically-reactive dyes
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ETHICAL INT WAREHOUSING TRADING SHANGHAI
- Publication Date
- 2009-06-03
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a new type of quaternary ammonium salt disazo navy blue reactive dye, which has high dyeing rate, excellent washability and excellent fastness characteristics such as chlorine bleaching resistance and oxidation bleaching resistance to washing with water. . Background technique
[0002] The disazo dyes synthesized and derived from H acid are composed of diazo components and coupling components. This kind of pigment matrix has the darkest hue among the blue pigment matrix, and is widely used because of its high molecular absorption coefficient. It is the base material of dyes used for deep color dyeing such as navy blue and black.
[0003] Among the series of disazo dyes, C.I. Reactive Black 5, a navy blue reactive dye developed by Hoechst Company in Germany in 1957, is the most famous. This kind of dye can dye the fabric into a very strong color and become black, so it is registered as black Black in the Color Index (Colour In...