Method of manufacturing conductive structures
View Patent ↗The present invention relates to a method of manufacturing a web of a plurality of conductive structures which may be used for example to produce an antenna, electronic circuit, photovoltaic module or the like. The method involved simultaneously patterning at least one pattern in a conductive layer using a plurality of registration marks. The registration marks serve to align and guide the creation of the plurality of conductive structures. Optical brighteners may also be utilized within the adhesive layer and the registration marks of the present invention in order to detect the location where conductive structures are to be placed.
1. A method of making a web of conductive structures:
providing a substrate having first and second faces;
providing an adhesive layer over the first face of the substrate,
the adhesive layer including a plurality of optical brighteners;
providing a plurality of registration marks on the adhesive layer;
deadening areas of the adhesive layer by a UV source to create active areas where adhesive is tacking and deadened areas where the adhesive is non-tacky;
laminating a conductive layer over the adhesive layer such that the conductive layer adheres to the active areas of the adhesive layer; and
detecting the registration marks; and
cutting the conductive layer bonded to the substrate to form a plurality of conductive structures so that each of the conductive structures are aligned with at least one of the plurality registration marks.
2. The method of claim 1 , wherein the registration marks include optical brighteners.
3. The method of claim 1 , including a further step of creating variable or personalized patterns in the conductive layer.
4. The method of claim 1 , wherein the conductive structures are formed by one of a laser cutter or cold foil process.
5. The method of claim 1 , wherein the adhesive layer is provided in pattern.
6. The method of claim 5 , wherein the pattern corresponds to shapes of the conductive structures.
7. The method of claim 1 , wherein the conductive layer is constructed from a metal foil.
8. A method of producing a web having a plurality of RFID antennas:
providing a substrate having first and second faces;
providing a cutting mechanism;
printing registration marks along edges of the substrate on one of the first and second faces;
applying an adhesive layer on the first face of the substrate, the adhesive layer includes a plurality of optical brighteners;
deadening areas of the adhesive layer by a UV source to create active areas where portions of the adhesive layer is tacky and deadened areas where other portions of the adhesive layer is non-tacky;
placing a conductive layer over the adhesive layer;
laminating the conductive layer over the adhesive layer such that the conductive layer adheres to active areas of the adhesive layer and does not adhere to deadened areas of the adhesive layer by a UV source;
detecting the plurality of optical brighteners; and
creating at least one pattern by one of laser cutting, die cutting or cold foil process in the conductive layer for forming a conductive structure after detecting the plurality of optical brighteners.
9. The method of claim 8 , wherein the optical brightener is UV detectable.
10. The method of claim 8 , including a further step of removing portions of the conductive layer not adhered to the deadened areas of the adhesive layer after the step of laminating the conductive layer.
11. The method of claim 8 , wherein the at least one pattern is a variable or personalized pattern.
12. The method of claim 8 , wherein the optical brightener is printed on top of the adhesive layer.
13. The method of claim 8 , wherein the optical brightener is a fluorescent powder.
14. The method of claim 8 , wherein the adhesive layer is provided in a pattern corresponding to the at least one pattern.