Spinnerets for filament prodn. - have circular heat insulated head contg. several spinneret units

摘要

Head has several spinneret units set horizontally in one head. The head has double walled heat insulation in circular form, with a series of units supplied from a central feed for the melt, with the units being sepd. by a top cover. Each unit, in its own container, slides in from below. The outside circumference of the head is pref. double-walled, for heat insulation. A central space is also insulated, and a series of tubular openings are seen at the base. At the top is a one piece cover which fits inside the outer walls. It is recessed to accept the spinneret units, each one of which has a perforated bottom plate. The units screw in from below. ADVANTAGE - The separate spinnert units can be removed for service, without having to take the whole appts. apart.