ASSEMBLY AND PROCESS FOR FORMING DOUBLE-STRAND MONOFILAMENT LINE FOR USE IN FLEXIBLE LINE TRIMMERS
Assembly and process for forming flexible cutting line for rotary trimmers having two or more monofilament lines mounted on a common spool. The lines (10) are joined side-by-side by a severable bond. The process includes extruding one or more pairs of filaments and directing the strands together about a collecting guide (68) in a cooling quench bath (66). The collecting guide elevation within the bath is adjustable to vary the strength of the severable bond. The strands are stretched and heated for molecular alignment of the polymer chains. The strands are then heated in a relaxed disposition, wetted and gathered on spools (72).