Soft through air dried tissue
US9382666B2 · kind B2 · utility
52Cited by
16References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2014 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Nov 6, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/40
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A multi-layer through air dried tissue including a first exterior layer comprised substantially of hardwood fibers, an interior layer comprised substantially of softwood fibers, and a second exterior layer comprised substantially of hardwood fibers. The interior layer includes a first wet end additive comprising an ionic surfactant and a second wet end additive comprising a non-ionic surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.