SEYCO WHITE TKB is a multi purpose neutral cast optical brightener for nylon and cellulosic textiles or their blends. Excellent light fastness. Easy leveling properties. Excellent wet fastness.
SEYCO WHITE AFT is a reddish caste, cationic optical brightener for acrylics, wool, silk, basic dyeable polyamide and acrylic blends. It has a strong affinity for these fiber types and is the preferred product for an optical used in batch/exhaust operations.