Methyl Naphthalene Sulfonate Formaldehyede Condensate

Dyestuff Auxiliary/Methyl Naphthalene Sulfonate Formaldehyede Condensate 1. Property Appearance: dark brown powderComposition: Methyl naphthalene sulfonate formaldehyde condensateIon type: Negative ionSolubility: Easily dissolved in water   2 Techinical specification Item standard Disperse force( compared to standard) 95%min Thermal stability 4-5 (130degree) Sodium sulfonate content 8%max PH (1% water-solution) 7-9 Insoluble in water 0.05%max Content of calcium and magnesium 4000 ppm max  3.Property: This product is brown to dark brown powder, an anionic surface active agent. Easily soluble in water, acid, alkali and hard water. It has great grinding effect, high tinting strength, strong dispersing force, good thermal stability(better than dispersing agent N) and so on.  Usage: 1. As dispersing auxiliary and filler for disperse dyestuff,vat dyestuff and reactive dyestuff. 2.Used in pigment pad dyeing of vat dye, acid dyeing in printing…