Method and apparatus for treating meltblown filaments
US5075068A · kind A · utility
43Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Oct 11, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/0985
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A meltblowing die is provided with means for discharging crossflow air onto meltblown filaments to disrupt their shape and flow pattern between the die and the collector. The disruption enhances drag forces imparted by the primary meltblowing air and results in smaller diameter filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.