[54] GRAVURE ROLL AND PROCESS FOR UNIFORM COATING GRADIENT
[75] Inventors: Thomas R. Fields, Charlotte; Amy E.
Bohr, Matthews; Kendalyn R. McCoy,
Monroe, all of N.C.; Lawrence C.
Forszen, Novi, Mich.
[73] Assignee: Rexam Industries Corp., Matthews,
N.C.
[21] Appl. No.: 439,498
[22] Filed: May 11,1995
Related U.S. Application Data
[62] Division of Ser. No. 218,721, Mar. 28, 1994.
[51] Int. CI.6 B05D 5/00; B05D 1/28;
B41M 5/00; B32B 3/00
[52] U.S. CI 427/286; 427/428; 101/151;
101/170; 428/156; 428/213
[58] Field of Search 427/428, 256,
427/286; 101/170, 150, 151, 152, 153;
428/156, 213
[56] References Cited
U.S. PATENT DOCUMENTS
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OTHER PUBLICATIONS
International Search Report, International Appl. No. PCT/ US95/02660, filed Mar. 3, 1995, mailed Aug. 1, 1995.
Primary Examiner—Shrive Beck
Assistant Examiner—-Fred J. Parker
Attorney, Agent, or Firm—Bell, Seltzer, Park & Gibson
[57] ABSTRACT
A gravure roll and associated coating methods are disclosed that produces a uniform coating gradient on a substrate. The gravure roll comprising a series of cells arranged in circumferential line density sections in which the line densities progressively increase from section to section, and in which the cell volumes progressively decrease within each section, and in which the cell volumes at the end of one section are substantially the same as the cell volumes at the beginning of the next adjacent section.
12 Claims, 13 Drawing Sheets
