Melt spinning apparatus
US5059104A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1989 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Sep 29, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A melt-spinning apparatus includes a feed device for feeding a molten polymer composition from at least one extruder to a multiplicity of spinning orifices provided by a plurality of spinnerets for producing a multiplicity of discrete continuous extrudates emerging from the orifices in a generally downward direction; quenching devices for cooling the extrudates and for solidifying them to form a multiplicity of discrete continuous filaments; take-up and stretching devices provided downstream from the orifices for contacting and stretching the filaments; the quenching devices include guides for directing at least one stream of a cooling gas having a quenching temperature onto a portion, at least, of the extrudates; the orifices or spinnerets are arranged to form an annular array and a portion, at least, of the quenching devices is provided to direct the cooling gas stream in a substantially radial manner onto the extrudates that emerge from the orifices in the annular array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.