a spinneret pack comprising a filtration assembly and an outer ring surrounding the spinneret plate , when it is clogged with unprocessed plastic material , is preheated by induction heating to separate the outer ring by slight pressure in a first processing step , then a second induction heating treatment separates the spinneret plate from the attached filtration assembly . the spinneret plate , detached by gravity , has matter in the die holes carbonized by the second induction heating process , thereby simplifying a final cleaning process which will make the spinneret plate reusable in the synthetic fiber manufacturing process .