Compaction-free method of increasing the integrity of a nonwoven web
US5707468A · kind A · utility
149Cited by
26References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1994 |
| Grant date | Jan 13, 1998 |
| Priority date | — |
| Expiry date | Dec 22, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/692
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is provided a process which comprises the step of subjecting a just produced spunbond web to a high flow rate, heated stream of air across substantially the width of the web to very lightly bond the fibers of the web together. Such bonding should be the minimum necessary in order to satisfy the needs of further processing yet not detrimentally affect the web. The fibers of the web may be monocomponent or biconstituent and the web should be substantially free of adhesives and not subjected to compaction rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.