Through-air-dried post bonded creped fibrous web
US6248212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1997 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Dec 30, 2017 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H11/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A web structure is formed by a process including first through-air drying the fibrous web comprising at least about 20% non-premium fiber, next applying a bonding material to the fibrous web, and next creping the fibrous web to form the web structure having a BLK/BW and CCDWT at least 85% of a wet-pressed web structure comprising 100% premium fiber. The web structure may alternatively or in addition to have a TWA and/or BLK/BW greater than the TWA and/or BLK/BW of a through-air-dried, bonded, and creped web structure comprising 100% premium fiber. The process may be repeated on the second side. The web structure may comprise a combination of hardwood, softwood, CTMP, and/or recycled fibers. The web structure may include at least about 40% recycled fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.