Device and method to prevent spinneret hole contamination
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 7, 2000
Grant Date -
N/A
app pub date -
Oct 28, 1997
filing date -
Oct 28, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spin pot for spinning synthetic polymer fibers has a polymer filter, a spinneret downstream of the polymer filter, and an electroformed perforated screen positioned between the polymer filter and the spinneret. The screen is most preferably electroformed nickel and includes an annular non-perforated region which bounds a perforated central region. The electroformed perforations prevent debris that may become dislodged from the filter unit from blocking the spinneret orifices thereby creating undesired 'slow-holes'.
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