PVC film for the production of identity cards

• US 4,803,114 A
• Filed: 12/15/1986
• Issued: 02/07/1989
• Est. Priority Date: 12/14/1985
• Status: Expired due to Fees

• Current Assignee: Unilever Patent Holdings BV (Unilever PLC)
• Original Assignee: Internationale Octrooi Maatschappij "Octropa" BV
• Inventors: Schledorn, Martin
• Primary Examiner(s): Ives, P. C.
• Application Number:
  US06/942,083
• Time in Patent Office: 785 Days
• Field of Search: 428/408, 428/323, 428/207, 428/208, 428/916, 428/578, 428/522, 524/80, 524/424, 524/567, 524/496
• US Class Current: 428/208
• CPC Class Codes: B32B 27/30 comprising vinyl (co)polymers; comprising acrylic (co)polymers
• CPC Class Codes: B41M 5/267 Marking of plastic artifacts, e.g. with laser
• CPC Class Codes: B42D 2033/04 Transparent material
• CPC Class Codes: B42D 2033/10 Metallic material
• CPC Class Codes: B42D 2033/20 Coloured material; Pigments or inks
• CPC Class Codes: B42D 2033/28 Paper or card board
• CPC Class Codes: B42D 2033/30 Plastic material
• CPC Class Codes: B42D 2033/32 Other material
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/23 Identity cards
• CPC Class Codes: B42D 25/41 using electromagnetic radiation B42D25/435 takes precedence
• CPC Class Codes: B42D 25/45 Associating two or more layers
• CPC Class Codes: C08K 3/04 Carbon
• CPC Class Codes: C08L 27/06 Homopolymers or copolymers of vinyl chloride
• CPC Class Codes: Y10S 428/916 Fraud or tamper detecting
• CPC Class Codes: Y10T 428/24909 Free metal or mineral containing
• CPC Class Codes: Y10T 428/25 Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
• CPC Class Codes: Y10T 428/30 Self-sustaining carbon mass or layer with impregnant or other layer
• CPC Class Codes: Y10T 428/31699 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/31906 Ester, halide or nitrile of addition polymer
• CPC Class Codes: Y10T 428/3192 : Next to vinyl or vinylidene chloride polymer
• CPC Class Codes: Y10T 428/31935 : Ester, halide or nitrile of addition polymer

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.

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.

2. A card according to claim 1 wherein the polyvinyl chloride film includes 0.6 g of carbon black per 100 kg of polyvinyl chloride in the film.

3. An identity card according to claim 1 including laser inscriptions or markings on said polyvinyl chloride film.