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Priority to ES522942ApriorityCriticalpatent/ES8407413A1/en
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Publication of ES8407413A1publicationCriticalpatent/ES8407413A1/en
Plastics multi-mini-coating process for threads or filaments consists of inserting between the extruder unit and the die or dies, one or more toric rings surrounding the dies, interconnected by mini-grooves and in turn with groove surrounding the dies. Pressure of the gelled plastics material is equalised and distributed by these toric rings and grooves, so that it converges concentrically on each of the dies, with a centring action on the filament, at the time a regular coating is achieved.
ES522942A1983-06-031983-06-03Plastics coating of threads by extrusion
ExpiredES8407413A1
(en)