| US 7,449,216 B2 | ||
| Gravure cylinder patch coating apparatus and method | ||
| Rukmini B. Lobo, Rochester, N.Y. (US); James P. Heetderks, Webster, N.Y. (US); David A. Wakefield, Canandaigua, N.Y. (US); Roger D. Beam, Albion, N.Y. (US); Mikel S. Hill, Honeoye Falls, N.Y. (US); Alan R. Bentz, Bergen, N.Y. (US); Charles S. Christ, Rochester, N.Y. (US); and Ralph P. Schultz, Pittsford, N.Y. (US) | ||
| Assigned to Eastman Kodak Company, Rochester, N.Y. (US) | ||
| Filed on Nov. 12, 2004, as Appl. No. 10/988,242. | ||
| Prior Publication US 2006/0105108 A1, May 18, 2006 | ||
| Int. Cl. B05D 1/26 (2006.01) | ||
| U.S. Cl. 427—256 [427/288; 427/428.06] | 11 Claims |
| 1. A method of applying a discrete patch of uniform coating to a moving web, comprising the steps of:
delivering a metered amount of coating solution to a continuously etched gravure cylinder roller;
supporting the moving web with a resilient backing roller;
controlling linear web movement;
defining a nip area between the gravure roller and backing roller;
moving the gravure roller into the nip area at a precise lengthwise location on the web, bringing the gravure roller into
and maintaining contact with the web by force;
moving the gravure roller away from the nip area and taking the gravure roller out of contact with the web:
controlling the speed of movement, S1, of the gravure roller into the nip area; and
controlling the speed of movement, S2, of the gravure roller away from the nip area thereby producing a discrete patch.
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