High-Pressure Water Jet System Design
topic
Spunlace water jet systems use positive displacement pumps delivering water at 50 to 400 bar through injector manifolds with jet strip orifices of 100 to 130 micrometres diameter at spacing of 600 to 800 orifices per metre, producing columnar water jets that penetrate the web and entangle fibres by hydraulic energy transfer, with jet pressure and orifice count per metre being the primary process variables controlling entanglement intensity and fabric strength.
Role
Provides the hydraulic energy that mechanically entangles fibres to create the bonded spunlace structure through water jet penetration of the web, with jet pressure and orifice design determining the entanglement depth and intensity that governs the balance between fabric strength, abrasion resistance, and the soft textile-like drape that distinguishes spunlace from chemically bonded nonwovens in touch-sensitive wipes and medical applications.