Method and apparatus for making an adhesive cleaning sheet
US7252855B2 · kind B2 · utility
7Cited by
4References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Jan 10, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1039
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of selectively applying pressure-sensitive adhesive to a nonwoven web and thereby forming a cleaning sheet having adhesive free peaks and adhesive containing valleys includes coating an adhesive transfer roll with adhesive, transferring a portion of the adhesive to raised regions of a female pattern forming roll, and transferring the adhesive from the raised regions of the female pattern forming roll to the web. An apparatus for selectively applying pressure-sensitive adhesive to a nonwoven web and forming a cleaning sheet is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.