PVC film for the production of identity cards
First Claim
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1. An identity card capable of being inscribed or marked with a laser beam which comprises a transparent top layer of polyvinyl chloride film containing 0.1 to 20 g of carbon black per 100 kg of polyvinyl chloride supported by an essentially nontransparent backing layer.
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Abstract
The PVC film contains a very small percentage of carbon black, which makes it possible to mark the film excellently by means of a laser beam.
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Citations
3 Claims
- 1. An identity card capable of being inscribed or marked with a laser beam which comprises a transparent top layer of polyvinyl chloride film containing 0.1 to 20 g of carbon black per 100 kg of polyvinyl chloride supported by an essentially nontransparent backing layer.
Specification