Process for preventing yellowing of polyamide fibre materials treated with stain-blocking agents by treatment with water-soluble light stabilizer having fibre affinity

摘要

A process for preventing yellowing of polyamide fibre materials treated with stain-blocking agents which comprises treating the polyamide fibre material with a water-soluble light stabilizer with affinity for the fibre before, during or after the treatment with a stain-blocking agent, and the fibre material thus treated are described.