The difference and connection between dispersant NNO and MF?

Dispersant NNO sodium methylene naphthalene sulfonate is mainly used as dispersant in disperse dyes, vat dyes, reactive dyes, acid dyes and leather dyes, with excellent grinding effect, solubilization and dispersibility; it can also be used in textile printing and dyeing, Wettable pesticides are used as dispersants, dispersants for papermaking, electroplating additives, water-soluble paints, pigment dispersants, water treatment agents, carbon black dispersants, etc. Dispersant NNO is mainly used in industry for pad dyeing of vat dye suspension, leuco acid dyeing, and dyeing of dispersive and soluble vat dyes. It can also be used for dyeing silk/wool interwoven fabrics, so that there is no color on the silk. The dispersing agent NNO is mainly used in the dye industry as a dispersion aid in dispersion and lake manufacturing, rubber emulsion stability, and leather tanning aid. Dispersant MF sodium methylene bis-methyl naphthalene sulfonate, formaldehyde condensate of sodium methyl naphthalene sulfonate, is an anionic surfactant, easily soluble in water, easy to absorb moisture, non-flammable, has excellent diffusivity and thermal stability Resistance, no permeability and foaming, resistance to acid and alkali, hard water and inorganic salts, no affinity for cotton, linen and other fibers; affinity for protein and polyamide fibers; can be used with anionic and nonionic surfactants at the same time , But can not be mixed with cationic dyes or surfactants; the ability to prevent disperse vat dye particles from heat agglomeration is better than NNO. At present, the dispersant NNO produced at home and abroad has poor high temperature dispersion performance, light color but not high temperature resistance, and heat resistance stability of about 80 ℃; and although the heat resistance stability of dispersant MF reaches 130 ℃ 4 to 5, but It is a brown powder and cannot be used to disperse light-colored dyes.