Elastomeric multicomponent fibers, nonwoven webs and nonwoven fabrics
US6994763B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2003 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Oct 23, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/69
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A bonded web of multi-component strands that include a first polymeric component and a second polymeric component is capable of overcoming a number of problems associated with nonwoven webs including both stickiness and blocking. The first polymeric component and second polymeric component are arranged in substantially distinct zones extending longitudinally along at least a portion of a length of the strands which make up the web with the second component containing a zone constituting at least a portion of the peripheral surface of the strand. The first polymeric component also has an elasticity which is greater than that of the second polymer component. A process producing elastomeric spunbonded nonwoven fabrics which utilizes the activation by incremental stretching of the strands is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.