Soft tissue products containing selectively treated fibers
US6964725B2 · kind B2 · utility
24Cited by
303References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2002 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Dec 12, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention is a tissue product comprising at least one tissue sheet. Each tissue sheet comprises a first side and an opposing second side. At least one tissue sheet comprises selectively treated pulp fiber treated with at least one hydrophobic chemical additive distributed non-uniformly in the z-direction within the tissue sheet. The tissue sheet has a % z-directional hydrophobic chemical additive gradient between the first side of the tissue sheet and the second side of the tissue sheet of about 20% or greater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.