2-Naphthalenesulfonic acid

The chemical names of dispersant NNO include sodium methylene dinaphthalene sulfonate and sodium methylene dinaphthalene sulfonate, which has excellent diffusion and protective colloidal properties, but has no surface activity such as permeation and foaming, and has an affinity for protein and polyamide fibers, but no affinity for cotton, linen and other fibers. It is mainly used as a dispersant in disperse dyes, vat dyes, reactive dyes, acid dyes and leather dyes, with excellent grinding efficiency, solubility and dispersion, and can also be used as dispersants for textile printing and dyeing, wettable pesticides, dispersants for papermaking, electroplating additives, water-soluble coatings, pigment dispersants, water treatment agents, carbon black dispersants, etc. Dispersant NNO is mainly used in industry for vat dye suspension pad dyeing, dye dye by cryptochromic acid, staining of dispersible and soluble vat dyes, etc. It can also be used for dyeing silk/wool interwoven fabrics to make the silk color-free.