Method and apparatus for treating the surface of a web or film, and webs and films treated therewith
US5766425A · kind A · utility
0Cited by
3References
66Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Jan 26, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/696
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The surface of a web or film is modified to impart the material with improved properties including wettability, printability, adhesion and static reduction. Such surface modification is achieved with an electrode structure which causes a filamentary discharge to pass generally horizontally across a surface of the electrode structure. A substrate to be treated is then positioned adjacent to the surface of the electrode structure so that the filamentary discharge is caused to flow horizontally across the surface of the substrate, in turn modifying the surface of the substrate and achieving the desired improvement in properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.