Panty liner with flow retarding layer
US4657538A · kind A · utility
58Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1985 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Jul 29, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A product for absorbing body fluids intended to be worn in the crotch portion of the undergarment is provided. The product includes a first absorbent layer at the side nearest the body and a second absorbent at the side facing the garment. The layers have therebetween liquid flow retarding means to retard liquid from passing from one absorbent layer to the other. The liquid retarding means comprise one or more plies of a web of hydrophobic fiber which web has a rising column strike through value of at least 10 inches of water and an air permeability of at least 20 cubic feet per foot squared per minute.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.