Aqueous yellow N Water soluble dyes

Water-soluble dye is an acidic, direct, reactive, basic dyes desalination membrane separation technology decontaminated from the high purity no salt (salt) dyes. General inorganic salt content <0.5%. Mainly acid dyes and direct dyes are mostly used in the production of ink, used in ordinary paper into ink-jet printing and water-based pens, etc., that the inkjet industry and pens industry. Water-soluble dyes used in the manufacture of high-quality ink must have the following properties: 1、High ecological standards (safe); 2、It has a high chroma and solubility in the aqueous ink; 3、Bright colors; 4、High surface tension: 5、Extremely low chlorine and sulfate content (low resistance); 6、Low viscosity; 7, Ca, Mg and Fe ion content PPm level (low-precipitable); 8、Free of heavy metals; 9、High light fastness. In recent years, at home and abroad by synthesis, purification technology continues to improve, we developed a new high-performance water-soluble dyes, new structures to meet community for writing and printing text and images continue to improve the requirements.
the production of ink, ordinary paper into ink-jet printing and water-based pens