Printing and dyeing auxiliaries; Dispersant NF

Product Name: Dispersant NF Product Content: > 99% Product Dispersing Power: > 99.8% Main Uses of Dispersant: In the printing and dyeing industry, it is mainly used for vat dye suspension pad dyeing, leuco acid dyeing, and dyeing with disperse and soluble vat dyes. It can also be used for silk/wool blended fabric dyeing to prevent silk from being dyed. In the dye industry, it is mainly used as a dispersing aid in the manufacture of disperse and lake dyes, a rubber emulsion stabilizer, and in industries such as leather tanning aids. Product Composition: Sodium salt of naphthalene sulfonic acid formaldehyde condensate Appearance: Beige powder Solubility: Easily soluble in water of any hardness Ionic Type: Anionic pH Value: 1% aqueous solution pH 7-9 Electrolytic Properties: Resistant to acid, alkali, heat, hard water, and inorganic salts. Compatibility: Can be used simultaneously with anionic and nonionic surfactants. Shelf Life: Can be stored for 6 months when sealed and protected from light. Application Methods of Dispersant: Has excellent dispersing and protective colloid properties but lacks surfactant properties such as penetration and foaming. Has affinity for proteins and polyamide fibers but no affinity for cotton, hemp, and other fibers. 1. Used as a dispersing and filling agent for disperse and vat dyes. During the fine grinding process of disperse or vat dyes, the dispersant can be added to the grinder along with the dye. The amount of dispersant is 0.5-3 times that of vat dyes or 1.5-2 times that of disperse dyes. Part of it can also be added as a filler during the commercialization of the dye. 2. Vat dye suspension pad dyeing method: Generally add 3-5 g/L of dispersant in the pad dyeing bath and 15-20 g/L in the reduction bath. 3. For high-temperature and high-pressure dyeing of polyester with disperse dyes, generally add 0.5-1.5 g/L of dispersant to the dye bath.
4. For dyeing with ice dyes to improve leveling and rubbing fastness, the amount of dispersant in the naphthol padding bath is generally 2-5 g/L, and in the developing bath, it is generally 0.5-2 g/L.