Soft, strong and bulky tissue
US10753046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Jun 25, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The disclosure provides tissue webs and products comprising cross-linked cellulosic fibers. In certain embodiments cross-linked cellulosic fibers are selectively disposed in one or more layers of a multi-layered tissue, wherein the tissue layer comprising cross-linked fibers is adjacent to a layer which is substantially free from cross-linked fiber. The cross-linked fibers may include hardwood kraft fibers reacted with a cross-linking agent selected from the group consisting of DMDHU, DMDHEU, DMU, DHEU, DMEU, and DMeDHEU. Tissue products and webs produced in this manner generally have improved sheet bulk, without losses in strength, compared to similar tissue products produced without cross-linked cellulosic fibers. As such the tissue products of the present invention generally have a basis weight from about 10 to about 50 gsm, a sheet bulk greater from about 8.0 to about 12.0 cc/g and geometric mean tensile from about 730 to about 1,500 g/3″.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.