Printing system employing deformable polymer printing plates
View Patent ↗A printing plate has a substrate, an array of cells on the substrate, wherein each cell corresponds to an element of a print image, a deformable polymer material localized into the cells such that each cell is at least partially formed from the deformable polymer material, a reservoir corresponding to each cell to collect the deformable polymer material as needed when the deformable polymer material is one of either melted or softened, and a heater to cause the deformable polymer material to either melt or soften. A method of forming a printing plate provides an array of cells, first heats the array of cells such that the deformable polymer material does one of either melts or softens, actuates the cells in the array to assume a deformed state, cools the array of cells to solidify the cells in the deformed state, second heats the cells such that the deformable polymer material in selected ones of the cells does one of either soften or melt and return to a less deformed state to form a printing pattern, and cools the surface to solidify the deformable polymer material in the printing pattern. A method of forming a printing plate provides an array of cells, heats the array of cells such that the deformable polymer material softens, actuates selected ones of the cells to deform surfaces of the selected ones to form a printing pattern, and cools the array of cells to solidify the printing pattern into a printing plate.
1. A method of forming a printing plate, comprising:
providing an array of cells on a substrate, wherein each cell corresponds to an element of a print image,
a solid deformable polymer material localized into the cells, the cells formed by spacers to contain the deformable polymer material;
a reservoir corresponding to each cell to collect the deformable polymer material from the cell as needed; and
a heater to cause the deformable polymer material to one of either melt or soften;
actuating the deformable polymer by first heating selected ones of the array of cells such that the deformable polymer material in selected ones of the cells does one of either melts or softens, the reservoir arranged to collect the deformable polymer material when the material either melts or softens
such that at least some portion of the deformable polymer material moves into the reservoir;
cooling the array of cells to solidify the deformable material in the selected ones of the cells in a deformed state;
second heating the selected ones of the array of cells such that the deformable polymer material in selected ones of the cells does one of either soften or melt and returns to a less deformed state to form a printing pattern on the substrate; and
cooling the surface of the array of cells to solidify the melted or softened deformable polymer material in the printing pattern.
2. The method of claim 1 , wherein actuating the cells comprises one selected from the group consisting of: magnetic actuation, electrostatic actuation, using positive pressure, using negative pressure, applying mechanical force, applying radiation, applying heat.
3. The method of claim 1 , comprising:
using the printing plate in one of either a gravure or a flexography printing process; and
heating the printing plate to return the cells to a planar state.
4. The method of claim 1 , wherein heating the cells comprises heating the array of cells, selectively heating the selected ones of the cells using an infrared light source, selectively heating the selected ones of the cells using a visible light source, and selectively heating selected ones of the cells by activating a microheater associated with the selected ones of the cells.
5. The method of claim 1 , wherein heating selected ones of the cells comprises controlling the heating to control a degree of return to a less deformed state.
6. The method of claim 1 , comprising:
applying a transfer material to the printing plate;
curing the transfer material to form a transfer surface;
transferring the printing pattern to the transfer surface; and
removing the transfer surface from the printing plate, the transfer surface to be used in printing.
7. The method of claim 6 , wherein the transfer surface is a curable transfer material and comprises one of a curable multi-component polymer, a dual-component polymer, a thermoplastic, or a photocurable polymer.
8. A method of forming a printing plate, comprising:
providing an array of cells on a substrate, wherein each cell corresponds to an element of a print image
a solid deformable polymer material localized into the cells, the cells formed by spacers and containing the deformable polymer material;
a reservoir corresponding to each cell to collect the deformable polymer material from the cell as needed; and
a heater to cause the deformable polymer material to one of either melt or soften;
actuating the deformable polymer material by heating selected ones of the array of cells such that the deformable polymer material softens and at least a portion of the softened material moves into the corresponding reservoir;
and
cooling the array of cells to solidify the softened deformable polymer material forming a printing pattern into a printing plate.
9. The method of claim 8 , comprising:
using the printing plate in one of either a gravure or a flexography printing process; and
heating the printing plate to return the cells to a planar state.
10. The method of claim 8 , wherein actuating selected ones of the cells further comprises one of either electrostatically or magnetically actuated selected ones of the cells.
11. The method of claim 8 , comprising:
applying a transfer material to the printing plate;
curing the transfer material to form a transfer surface;
transferring the printing pattern to the transfer surface; and
removing the transfer surface from the printing plate, the transfer surface to be using in printing.
12. The method of claim 11 , wherein the transfer surface is a curable transfer material and comprises one of a curable multi-component polymer, a dual-component polymer, a thermoplastic, or a photocurable polymer.
13. A method of forming a printing plate, comprising:
providing an array of cells on a substrate, wherein each cell corresponds to an element of a print image
a solid deformable polymer material localized into the cells, the cells being defined by spacers to contain the deformable polymer material;
a reservoir corresponding to each cell to collect the deformable polymer material as needed;
actuating the deformable polymer material by heating selected ones of the array of cells such that the deformable polymer material softens in the selected ones of the array of cells
and at least a portion of the softened deformable polymer material moves into the reservoir; and
cooling the array of cells to solidify the softened deformable polymer material forming a printing pattern into a printing plate.
14. The method of claim 13 , wherein heating selected ones comprises heating the selected ones with one of a laser, a focused light source or an array of microheaters.
15. The method of claim 13 , wherein actuating selected ones of the cells comprises one of applying a vacuum to the backside of the substrate, applying a positive pressure to either a top of a membrane over the deformable material or to a surface of the deformable material, capillary forces between the polymer and the substrate, or pressure applied to the backside of the substrate.