Production of electrostatically spun products

A process in which a liquid comprising a fiberizable material is introduced into an electrostatic field whereby the material produces fibers which are drawn to a collector which is charged relative to the fibers, and upon which they are deposited to form a product comprising a tubular portion having a proportion of the fibers lying circumferentially and in which the electrostatic field is distorted by the presence of an auxiliary electrode, characterised in that the auxiliary electrode is positioned and charged so that the proportion of fibers deposited in substantially circumferential disposition is increased relative to those so deposited in the absence of said auxiliary electrode and so that the fibers are stretched and deposited upon said collector in an extended form such that upon removal of the collector the tubular portion reduces in diameter.