Smooth and bulky rolled tissue products
US10040265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31F2201/0738
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The novel tissue products of the present invention are generally produced by calendering a tissue basesheet using at least one patterned roll. In one embodiment the patterned roll replaces the flat steel roll commonly used in calendering. The elements on the patterned roll provide a means of providing a nip having variable loading such that Z-direction variability in the web is reduced, yielding a smoother web, but without subjecting the web to excessive compression forces and preventing excessive caliper loss. Thus, webs converted according to the present invention tend to retain a greater percentage of their caliper and bulk when converted compared to webs converted using conventional calendering means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.