Method for producing a same pattern using a simple print and device thereof
View Patent ↗A method for producing a pattern, in particular a wood pattern, on the face of a woodbased-material board. The pattern is preset with the aid of a digital data set and applied to the woodbased-material board via an intaglio printing process. The pattern is covered with at least one synthetic resin layer and pressed with the woodbased-material board. The digital data set is used to produce a sample print by use of an inkjet printing process, which print is used to compare with the pattern print on the woodbased-material board in terms of optical appearance. The materials and/or printing conditions used in the pattern printing and the sample printing are coordinated with one another.
1. A device for printing, coating and pressing two different base materials with a same pattern, which is covered with a synthetic resin and subsequently pressed therewith, wherein the device comprises a first printing line and a second printing line, a pattern is applied to a first base material as a sample print using an inkjet printer in the first printing line and a same pattern is applied to a second base material using an intaglio printing device in the second printing line, and a test unit provided on an exit side with an optical scan element and a comparison unit compares the printing results of the first and second printing line with respect to optical appearance.
2. The device according to claim 1 , wherein the optical scan element has a control unit in which results obtained in a scanning process are compared to a preset data set, and if there is conformity or if the deviations are acceptable a switching pulse is transmitted to control the second printing line.
3. The device according to claim 1 , wherein the pattern is applied with an indirect intaglio printing device in the second printing line.
4. The device according to claim 1 , wherein identical printing liquids or printing inks are used for the pattern applied to the first base material and the second base material.
5. The device according to claim 1 , wherein the first base material and the second base material are same base materials.
6. The device according to claim 5 , wherein the same base materials are woodbased-material, synthetic, stone or linoleum boards.
7. The device according to claim 5 , wherein the same base materials are decorative papers.
8. The device according to claim 1 , wherein the first base material and the second base material are provided with a chamfer on at least two opposite edges.
9. The device according to claim 1 , wherein the pattern is applied with an indirect intaglio printing device in the second printing line in which printing liquids are applied to the second base material indirectly via a rubber roll in order to even out irregularities.
10. The device according to claim 1 , wherein the optical scan element is a charge-coupled device.
11. The device according to claim 10 , wherein the optical scan element contains a control unit in which results obtained in a scanning process are compared to a preset data set.
12. The device according to claim 11 , wherein when conformity or deviations are acceptable, a switching pulse will be transmitted to control the second printing line.
13. The device according to claim 11 , wherein the synthetic resin contains melamine resin or resinous resin which is coated on a woodbased-material board.
14. The device according to claim 13 , wherein corundum particles are embedded into the synthetic resin.
15. The device according to claim 14 , wherein the synthetic resin is pressed with the printed woodbased-material board in a short-cycle press.