DE29621588U1 - Plastic card - Google Patents

Description

Plastic card

The present invention relates to a plastic card, e.g. in the form of a credit card, a telephone card, membership card, ID card or the like, consisting of at least two interconnected plastic films, of which at least one is made of a transparent material and is partially provided with a printed area on its side facing the other plastic film.

Plastic cards of the aforementioned type are known in many different designs and for many different purposes and are used in practice, for example, as credit cards, telephone cards, membership cards, ID cards or the like. It is also known to provide such cards with a chip on the side facing away from the printing area, as is the case with telephone cards, for example.

If such plastic cards are subject to high demands in terms of strength and stability, it is necessary to produce a correspondingly rigid and stable composite of the individual plastic films.

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In the production of plastic cards, it is also known to use transparent plastic films on the connecting area
printed area.

iien on the side lying in the connection area at least partially with a

The printed area can be used for advertising, information or similar purposes. It is often desired that the printed area is able to display changing images, movement sequences or even three-dimensional images.

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fertilize.

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· ■ So-called lenticular films are particularly suitable for this purpose, ^but up to now they have only been bonded to other plastic films. However, with such a bonding, the stability requirement often placed on plastic cards is no longer met.

rifi-tiv:': and rigidity not achievable. ^:

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&igr;I;:I;;|: The present invention is based on the object of providing a plastic card of the general

:;!; |; ^{! !} tical type, which on the one hand has a high stability or rigidity and

durability and on the other hand enables the representation of changing images, movement sequences or even three-dimensional images in the printed area. *

This object is achieved according to the invention in that the transparent plastic film is a lenticular film and is pressed, _heat -sealed or welded to the other plastic film exclusively in the edge region surrounding the printed area.

> ^! ' ^: s'ir/'''i ¹ By pressing, heat sealing or welding the two plastic films ! ■ &iacgr;! &iacgr; a high level of stability and rigidity is achieved for the plastic card produced in this way.

At the same time, the well-known advantage of the lenticular film is used to display alternating images, motion sequences or even three-dimensional images. Since the lenticular film is not mechanically or thermally

^; > mixed treatment, the lens structure is preserved in this area, so ^that the plastic map as a whole receives the stability already mentioned and yet the optically interesting possibilities of the lens raster map are retained.

; i ^; Embodiments of the invention are illustrated in the accompanying drawings and are described in more detail below.

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,1'&igr;j; Figure 1 is a front view of a Piastaek card according to the invention,

LOESENBECKS ₁ SiRACkE-PATENTANWÄLTE-BIELEFELD * 10 December 1996

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a rear view of the plastic card according to Figure 1,

a greatly enlarged section through a PIa-

a likewise greatly enlarged section through a plastic card according to a further embodiment of the invention.

The plastic card shown in Figures 1 and 2 in front and rear view and designated overall with the reference number 1 consists, for example, of two plastic films 2 and 3 connected to one another, as shown in Figure 2. The plastic film designated with the reference number 3 is a lenticular film which is equipped with a printed area 4 on its side facing the other plastic film 2, as indicated in Figure 1.

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The two plastic films 2 and 3 are pressed, hot-sealed or welded together exclusively in the edge area 5 surrounding the printed area 4, ^: "'" ^: '^ ''^;"." ^r|: '""^'^>.^W :^ ..■■■·■:■■ ■■ ■■ ■■·.

As can be seen in the enlarged sectional view according to Figure 3, the thin structure of the lenticular film is completely or partially destroyed in this sealed, heat-sealed or welded edge area 5, but remains completely intact in the printed area 4, so that the optical advantages of the lenticular film are retained in this relevant area.

Figure 4 shows another plastic card 1 according to the present invention, which differs from the previously described embodiment only in that it has a three-layer structure. Here too, a plastic film 3 in the form of a lenticular film is used on the front, which is connected to another plastic film 2. The three-layer structure mentioned is completed by a third plastic film 7, which is referred to as the base film. Here too, the connection of the plastic films 2 and 3 as well as 7 is brought about by pressing, heat sealing or welding exclusively in the edge area 5 surrounding the printed area 4.

In both cases, a dh'ip 8 - as in a telephone card - can be incorporated on the side of the plastic card 1 facing away from the lenticular foil.

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LOESENBECk& sTHÄbfe-PATENTANWÄIJE -BIELE'feLD

10 December 1996

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Claims (1)

1, Plastic card, e.g. in the form of a credit card, a telephone card, membership card, identity card or the like, consisting of at least two plastic films connected to one another, of which at least one is made of a transparent material and is partially provided with a printed area on its side facing the other plastic film, characterized in that the transparent plastic film '$)' is a lens raster film and is pressed, heat-sealed or welded to the other plastic film (2) exclusively in the edge region (5) surrounding the printed area (4). iiriiiiitf'i'^ LOESENBECK & STRACKE - PATENT ATTORNEYS - BIELEFELD 1O. December 1996 Ni !«it tr !, i|l·'