In production of a credit card or other magnetically encodable articles, a thermoplastic surface laminate layer is thermally tacked to a core stock layer and a magnetically encodable stripe is printed, for example, silk screened, on the laminate-core stock assembly. The resulting assembly is laminated...http://www.google.de/patents/US4100011?utm_source=gb-gplus-sharePatent US4100011 - Production of laminated card with printed magnetically encodable stripe
