Method for embossing air-laid webs using laser engraved heated embossing rolls
US7655105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2007 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Dec 28, 2027 |
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 product includes depositing a dry web of fibers on a foraminous support; compacting the fiber web; embossing the compacted web with a laser-engraved roll with a hard rubber embossing surface, the hard rubber embossing surface having a plurality of sinuate bosses radially projecting circumferentially around the laser-engraved roll to provide the fiber web with a functional emboss pattern including a plurality of continuous sinuate compressed regions extending in a machine direction of the fiber web, the laser-engraved roll being heated to or maintained at a temperature of from about 100° F. to about 300° F.; and bonding the fiber web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.