Stretchable composite sheet and process for forming the same with a plurality of gathers
US8182732B2 · kind B2 · utility
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10References
4Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 21, 2004 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Oct 4, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/659
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Here is disclosed a composite sheet comprising substantially non-stretchable nonwoven fabric sheets and a plurality of elastic members extending in a transverse direction and spaced one from another in a longitudinal direction by a given spacing wherein the elastic members are secured in a stretched state to the nonwoven fabric sheets. The composite sheet has a plurality of gathers formed by slightly undulated surface of the nonwoven fabric sheets and the elastic members and these gathers are substantially continuous in the longitudinal direction and arranged at substantially regular intervals in the transverse direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.