Disposable diaper with folded absorbent batt
US4960477A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Jan 24, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved absorbent unit for a disposable diaper, or the like, wherein a fibrous batt is initially generally rectangularly shaped, and is cut so as to define side flaps which are folded over into overlapping relationship with one another in the central portion of the batt to define a multiple layer crotch region for increased liquid storage capacity. The batt is provided with a thickened densified skin at one side thereof for increased strength and stability, and for transporting liquid into remote areas of the batt. In a further embodiment, a quantity of highly liquid-sorbent superabsorbent material is provided in discrete spaced-apart regions between upper and lower fibrous webs of the diaper batt, with a network of densified wicking embossments and at least one integral densified wicking layer provided for promoting efficient wicking and transport of liquid within the absorbent structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.