Device and method to prevent spinneret hole contamination
US6033609A · kind A · utility
7Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1997 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Oct 28, 2017 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D4/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
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".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.