Multi-ply tissues having internal indicia
US6221211A · kind A · utility
18Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1994 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Feb 4, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi-ply tissue contains an internal indicia, such as a printed pattern applied to the center ply, which is visible through the outer plies of the tissue and which indicates the presence of some unique ingredients within the tissue product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.