Method for embossing air-laid webs using laser engraved heated hard rubber embossing rolls
US7208064B2 · kind B2 · utility
3Cited by
48References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2004 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Feb 25, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1039
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of making an embossed air-laid absorbent sheet includes: depositing a dry web of fibers on a foraminous support; embossing the compacted web with a laser engraved roll provided with a hard rubber embossing surface having an embossing pattern with a depth of from about 5 mils to about 100 mils. The hard rubber embossing surface is biased toward a second embossing surface selected from the group consisting of the surface of a nip roll and a foraminous web support engaging a support embossing roll. The process further includes bonding the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.