Process for producing a uniform coating gradient for a gravure roll
AssigneeRexam Industries Corp.
InventorsThomas R. Fields, Amy E. Bohr, Kendalyn R. McCoy, Lawrence C. Forszen
Life of this patent
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Abstract
A method of making a gravure roll disclosed that produces a uniform coating gradient on a substrate. The gravure roll includes 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.
Claims4
A method of making a gravure roll that will produce a uniform coating gradient on a substrate, the method comprising:
- forming a first section of cells on the circumferential surface of a cylindrical gravure roll at a constant line density while concurrently progressively reducing the cell volumes along the axial direction of the cylindrical gravure roll;
- and
- forming a second section of cells on the circumferential surface of the gravure roll adjacent to the first section, and at a constant line density that is greater than the line density of the first section, and while substantially matching the volumes of the first cells in the second section to the last cells in the first section, and while concurrently progressively reducing the cell volumes in the second section along the axial direction of the roll.
Dependencies are inferred from the claim text.