(57) The invention relates to a method for manufacturing a multilayer card body (1), in
particular for a portable data carrier, with improved properties in that the side
surface of the card body is sealed during separation or after it has been separated
from a laminated sheet. Further, the invention relates to a card body (1), manufactured
according to the method. Besides, the invention relates to a corresponding separating
tool (20). Moreover, the invention relates to an apparatus for manufacturing a multilayer
card body (1). The method comprises laminating together at least two layers (2, 4)
to form a laminated sheet, separating the multilayer card body from the laminated
sheet, eg by cutting, milling or punching out. The sealing can be carried out by heating,
eg by ultrasonic waves, by destroying and, thereby, activating capsules (14) containing
adhesive, by applying a sealing material (30) to the side surface (10), wherein the
sealing means (30) is an adhesive, a varnish or a solvent, by subjecting the side
surface (10) to UV radiation (50) or IR illumination (60), by subjecting the side
surface (10) to laser radiation (70), or by using mechanical or laser engrailed edges
or micro-structuring. The separating tool (20) can be heated so as to cut and heat-seal
at the same time.
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