Topsheet for absorbent articles exhibiting improved masking properties
US6025535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1996 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Oct 28, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M15/643
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a fluid previous fibrous, preferably nonwoven, web having a first surface and a second surface. The web comprises a hydrophilic nonwoven web comprising a plurality of individual, preferably whitened, brightened, and/or opacified, fibers associated with one another. The web includes a plurality of surface energy gradients defined by the boundaries of discontinuous, spaced regions of the web which are located on the first surface which exhibit a different surface energy than an adjacent portion of the web. The regions comprise depositions of a preferably whitened, brightened, and/or opacified low surface energy material randomly distributed over the first surface. In a preferred embodiment, the nonwoven web is formed of shaped fibers of substantially non-circular cross-section, preferably a trilobial or delta cross-section, which include whitening, brightening, and opacifying agents within the fiber material. Preferably, the low surface energy material includes whitening and opacifying agents within the material itself, with a preferred material comprising a UV curable silicone resin including a titanium dioxide particle suspension. The nonwoven fibrous…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.