Plastic card having metallic luster

• US 4,479,995 A
• Filed: 07/16/1982
• Issued: 10/30/1984
• Est. Priority Date: 07/21/1981
• Status: Expired due to Term

• Current Assignee: Dai Nippon Printing Company Limited, Taihei Kagaku Seihin Kabushiki Kaisha
• Original Assignee: Dai Nippon Printing Company Limited, Taihei Kagaku Seihin Kabushiki Kaisha
• Inventors: Suzuki, Norimoto, Hayakawa, Fukuichiro
• Primary Examiner(s): Lesmes, George F.
• Assistant Examiner(s): Swisher, Nancy A. B.
• Application Number:
  US06/398,874
• Time in Patent Office: 837 Days
• Field of Search: 428/203, 428/209, 428/900, 428/461, 428/204, 428/207, 40/2.2, 40/615
• US Class Current: 428/203
• CPC Class Codes: B42D 2033/04 Transparent material
• CPC Class Codes: B42D 2033/10 Metallic material
• CPC Class Codes: B42D 2033/16 Magnetic or magnetisable material
• CPC Class Codes: B42D 2033/20 Coloured material; Pigments or inks
• CPC Class Codes: B42D 2035/08 Alphanumerical data
• 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 25/369 Magnetised or magnetisable materials
• CPC Class Codes: B42D 25/373 Metallic materials
• CPC Class Codes: B42D 25/455 using heat
• CPC Class Codes: B42D 25/46 using pressure
• CPC Class Codes: B42D 25/47 using adhesives
• CPC Class Codes: B44C 3/02 Superimposing layers B44C3/005 takes precedence
• CPC Class Codes: B44F 1/04 after passage through surface layers, e.g. pictures with mirrors on the back
• CPC Class Codes: Y10S 283/904 Credit card
• CPC Class Codes: Y10S 428/90 Magnetic feature
• CPC Class Codes: Y10T 428/24868 Translucent outer layer
• CPC Class Codes: Y10T 428/24917 including metal layer

Abstract

A colored plastic sheet is interposed between a pair of metallic luster plastic sheets having metallic luster pigment dispersed therein and sandwiched between a pair of transparent plastic sheets to form a metallic luster plastic card. The metallic luster plastic card has good and homogeneous luster with the use of a relatively small amount of a metallic luster pigment without entailing an increase of the total thickness of the card and also has a high optical transmission density which is required for positional recognition of the card.

Claims

1. A multilayer plastic card having metallic luster comprising:

a colored plastic sheet having a light transmission density of not less than 1.8;

metallic luster plastic sheets containing a metallic luster pigment with said metallic luster plastic sheets laminated on respective opposite surfaces of the colored plastic sheet; and

transparent plastic sheets laminated on respective outer surfaces of the metallic luster plastic sheets.

2. The plastic card of claim 1, wherein the colored plastic sheet has a lightness of 0 to 3 according to the Munsell color system.

3. The plastic card of claim 1, wherein the colored plastic sheet is black.

4. The plastic card of claim 1, wherein the colored plastic sheet is gray.

5. The plastic card of claim 1, wherein the colored plastic sheet has a chromatic color.

6. The plastic card of claim 1, wherein a magnetic stripe is provided on the surface of at least one of the transparent plastic sheets.

7. The plastic card of claim 1, wherein a magnetic strips is embedded in at least one of the transparent plastic sheets so that the outer surfaces of the strip and the sheet lie in the same plane.

8. The plastic card of claim 1, wherein the outer surface of the plastic card has a visible recording layer thereon.

9. The plastic card of claim 1, whereby the multiple layers are heat and pressure fused.

10. The plastic card of claim 9, whereby the multiple layers are further fused by an adhesive between the layers.