Wet wipe
US5292581A · kind A · utility
122Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1992 |
| Grant date | Mar 8, 1994 |
| Priority date | — |
| Expiry date | Dec 15, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/689
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Wet wipes having improved wet strength, wet thickness and wet toughness are provided by incorporating a wet strength agent in the fibrous web containing pulp fibers and at least five percent by weight man-made fibers and hydraulically entangling the web. No post-formation bonding treatment is employed and the fiber dispersion includes only about 1% by weight of the wet strength additive. The hydroentanglement coupled with the low amount of additive provides unexpected synergistic strength and absorbency characteristics. The wet wipe retains its strength characteristics despite packaging and prolonged storage in a wet condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.