Method of forming a fine fiber barrier fabric with improved drape and strength of making same
US5810954A · kind A · utility
15Cited by
34References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Feb 20, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H3/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of producing a fabric comprising producing fine denier fibers, using either meltblown or spunbond processes, or a combination of the two, followed by crimping, spotbonding using differential bond roll temperatures, and neck-stretching. Fiber having less than or equal to about 1.5 denier is preferred. The bond temperature differential is about 10.degree.-50.degree. F. The mat produced has the unexpected result of improved strength, conformability and reduced stiffness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.