DYEING SULFONATED ANIONIC POLYMERIC FIBERS WITH AN AQUEOUS DISPERSION OF A SALT OF A CATIONIC DYE AND AN ARYLSULFONATE

摘要

An aqueous dispersion of (1) a water-insoluble salt of a cationic dye and a selected anion of an arylsulfonic acid with (2) an anionic dispersing agent selected from lignin sulfonate or a salt of a sulfonated naphthalene-formaldehyde condensate has been found useful in the high-temperature dyeing of acid modified acrylic, polyamide, or polyester fibers, either alone or in blend by continuous dyeing operations.