Web Formation and Filament Deposition Systems
topic
Spunbond web deposition uses deflector plates or diffuser systems to spread the drawn filament bundle into a randomised web on a moving collection belt with suction beneath maintaining the deposited web position against the turbulent air flow, with deflector geometry and collection belt speed relative to filament throughput controlling web weight from 8 to 150 grams per square metre and fibre orientation distribution from machine-direction biased to near-isotropic.
Role
Converts the extruded and drawn filament streams into a uniform web on the collection belt through controlled filament deflection and deposition that determines web weight uniformity, filament orientation, and web surface quality that directly affect spunbond fabric mechanical properties and appearance, with deposition system design being the key engineering element distinguishing high-uniformity premium spunbond from commodity grades.