Coextruded foil composite material and its use in card bodies
First Claim
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1. A method for manufacturing a card body having a plurality of foil composite layers, comprising:
- a card core made of at least one inlay foil layer,at least two cover foil layers for covering both surfaces of the card core, andwherein the foil composite layers are laminated to each other in one work operation or in several work operations, wherein there is used as at least one of the cover foil layers and/or as the at least one inlay foil layer a foil composite material,wherein the foil composite material comprises;
an inner layer formed between a first outer layer and a second outer layer,the first outer layer comprising terephthalate glycol copolymer (PETG),the second outer layer comprising PETG,the inner layer comprising a single thermoplastic copolyester elastomer (TPC) and being the thickest layer of the foil composite material.
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Abstract
A composite film material usable in a data carrier card body includes a first outer plastic layer, an inner plastic layer and a second outer plastic layer, all the layers together forming a co-extruded composite. The plastic material of the first outer layer is a polyethylene terephthalate glycol copolymer (PETG) or contains a PETG, the plastic material of the inner layer is a thermoplastic elastomer (TPC) or containes a TPC, and the plastic material of the second outer layer is a PETG or contains a PETG.
19 Citations
8 Claims
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1. A method for manufacturing a card body having a plurality of foil composite layers, comprising:
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a card core made of at least one inlay foil layer, at least two cover foil layers for covering both surfaces of the card core, and wherein the foil composite layers are laminated to each other in one work operation or in several work operations, wherein there is used as at least one of the cover foil layers and/or as the at least one inlay foil layer a foil composite material, wherein the foil composite material comprises; an inner layer formed between a first outer layer and a second outer layer, the first outer layer comprising terephthalate glycol copolymer (PETG), the second outer layer comprising PETG, the inner layer comprising a single thermoplastic copolyester elastomer (TPC) and being the thickest layer of the foil composite material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification