"SEYCO SPERSE SPW or SPW CONC is a concentrated mixture of low molecular weight polyesters and other polymeric dispersing and antiredeposition agents. SEYCO SPERSE SPW exhibits outstanding dye antiredeposition properties in garment wet processing and other washing and scouring systems. Unlike most competitive products, SEYCO SPERSE SPW works equally well on cotton, polyester, and poly/cotton blends.