Method and device for producing a portable data carrier with a built-in element
View Patent ↗A method for producing a data carrier which has a built-in element. A recess for receiving the built-in element and a collecting groove for receiving displaced filling material are formed in a core layer. An excess of filling material is specifically provided in the free spaces remaining between the wall of the recess and the built-in element and on the surface. With a covering film interposed, the filling material is then rolled or spread out over the surface by means of a doctor blade.
1. A method for producing a data carrier having a mounted element, said method comprising the steps:
providing a core layer having a top surface and at least one recess produced in the top surface,
placing the mounted element in the at least one recess therein,
filling free spaces remaining between a recess wall of the at least one recess and the mounted element pressurelessly by mechanical distribution of a filling material initially applied in pointwise fashion, from the top surface of the core layer,
supplying an excess of filling material in the at least one recess and/or on the top surface of the core layer, and
then rolling out or doctoring out the filling material over the top surface of the core layer with interposition of a cover foil so that the excess filling material is displaced and uniformly spread completely over the top surface of the core layer, in such a way that a film of filling material forms between the cover foil and the top surface of the core layer.
2. The method according to claim 1 , including creating the at least one recess in the core layer larger than the mounted element.
3. The method according to claim 1 , including providing the at least one recess with a positioning aid which defines the position of the mounted element in the recess.
4. The method according to claim 3 , including configuring the positioning aid as a relief structure on the wall of the at least one recess and/or as a support element on the bottom of the recess.
5. The method according to claim 1 , including creating in the core layer, neighboring to the at least one recess, at least one collecting groove which serves to receive excess filling material.
6. The method according to claim 1 , including producing the at least one recess by first creating a hole in a core foil and then closing the latter on the back using a closing layer.
7. The method according to claim 1 , including first metering a first amount of filling material into the at least one recess before inserting the mounted element.
8. The method according to claim 7 , including curing the filling material after insertion of the mounted element.
9. The method according to claim 7 , including after insertion of the mounted element into the at least one recess, metering a second amount of filling material into the at least one recess.
10. The method according to claim 1 , including curing the filling material after application of the cover foil.
11. The method according to claim 1 , including applying a reservoir of filling material in an edge area of the core layer, said edge area not being part of the finished data carrier.
12. The method according to claim 11 , including fastening a cover foil in the edge area of the core layer by a fixing means.
13. The method according to claim 11 , including doctoring on or rolling on the cover foil over the top surface and the at least one recess with the filling material beginning at the edge area of the core layer.
14. The method according to claim 11 , including detaching the edge area of the core layer along separating lines on the core layer, so that a data carrier is produced.