Method of spot embossing a fibrous sheet
US4803032A · kind A · utility
126Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Jan 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1023
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of embossing a sheet of non-woven fibrous web, e.g. toilet tissue, with a series of identical boss elements arranged in a uniform pattern in a manner to avoid nesting of the embossments and resulting non-uniform product rolls when the sheet is rolled onto a mandrel. The embossments are uniformly spaced in rows which in the longitudinal direction form an angle in the range of 15.degree. to 23.degree. relative to the edge of the sheet or roll and an angle in the range of 40.degree. to 57.degree. relative to the cross direction of the sheet or roll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.