Dual surface film coating of running web
US4455327A · kind A · utility
13Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1982 |
| Grant date | Jun 19, 1984 |
| Priority date | — |
| Expiry date | Apr 23, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2001/747
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A first coating liquid 3 is applied to one surface of a continuously running web 1 and fluidity of the first coating layer is eliminated by an air blower 6, after which the web is float supported over a cylindrical blower 7 by static gas pressure. A second coating liquid 11 is applied to the opposite surface of the web in the vicinity of the float region by a freely falling curtain film 12 or by a pressure extruded jet film 15. sp This is a continuation of application Ser. No. 887,400, filed Mar. 16, 1978, now abandoned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.