Method of forming autogenously bonded non-woven fabric comprising bi-component fibers
US4189338A · kind A · utility
101Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1975 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | Jul 29, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/26
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A porous non-woven fabric having a good dimensional stability and uniformity is prepared from a web obtained by arranging side-by-side composite fibers alone or a blend thereof with another fibrous material into a web and heat-treating the resulting web at a specified temperature, said composite fibers having few naturally developed crimps and being obtained by stretching unstretched side-by-side composite fibers consisting of a polypropylene component and an olefin polymer component having a specified melting point and a specified melt flow rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.