Wet-resilient webs and disposable articles made therewith
US6436234B1 · kind B1 · utility
134Cited by
39References
69Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1997 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Aug 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/695
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Paper sheets useful for tissues, paper towels, napkins, disposable absorbent products and the like can be made to exhibit a high degree of wet resiliency. This property is achieved by using a combination of high yield pulp fibers (such as bleached chemithermomechanical pulp fibers) and a wet strength agent in an uncreped throughdrying process. The resulting product, when wetted, can spring back after being crumpled in one's hand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.