Multilayer card

Abstract

A multilayer card has (i) an opaque polyester film substrate ( 1 ) containing 0.2 to 30% by weight, relative to the total weight of the substrate, of at least one copolyesterether, (ii) an ink-receptive layer ( 2 ) on at least one surface of the substrate, and (iii) a cover layer ( 4 ) on the surface of the ink-receptive layer and/or surface of the substrate. The presence of the copolyesterether in the substrate reduces the tendency of the card to delaminate in use. Suitable for use, inter alia, in identification, magnetic, credit, pre-paid and smart cards.

1 - 7 . (Cancelled).  
     
     
         8 . A method of producing a multilayer card which comprises forming an opaque substrate by extruding a layer of molten linear polyester comprising an opacifying agent and in the range from 0.2 to 30% by weight, relative to the total weight of the substrate, of at least one copolyesterether, quenching the extrudate, orienting the quenched extrudate in at least one direction, forming an ink receptive layer on at least one surface of the substrate, applying pictorial and/or written information on the surface of the ink-receptive layer, and forming a cover layer on the surface of the information carrying ink receptive layer and/or surface of the substrate.  
     
     
         9 . A method according to  claim 9  wherein the substrate and ink-receptive layer(s) are formed by coextrusion.  
     
     
         10 . A method according to either one of claims  8  and  9  wherein the multilayer card is formed by laminating together two or more separate self-supporting film structures.