Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
1999-04-22
2001-08-21
Gray, Linda (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S277000, C156S327000, C156S308200, C156S583100, C283S070000, C283S075000, C283S082000, C283S094000, C283S109000
Reexamination Certificate
active
06277232
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a process for manufacturing a plastic card, such as a credit, charge or debit card, having a lenticular lens therein to view multi-dimensional, lithographic images. Using this process, a plastic card can have artistic, visual images creating the illusions of depth and moving effects imprinted therein. Moreover, this process results in a plastic card which meets financial industry standards for security, reliability and durability.
By way of background, there are many different types and styles of credit, charge, debit and other financial cards made out of plastic. Typically, a plastic card, such as a credit card, has one or two central layers of white or colored plastic. A clear plastic film is then laminated to the front and rear surfaces of this central plastic layer.
Additionally, there are known processes of producing multi-dimensional, lithographic images which impart the illusions of depth and/or motion to a viewer. Typically, lithographic images are created by using a series of individual still pictures created from photographs or other artistic works which are segmented and then merged together in a desired sequence to form a composite picture or image. There are also known methods of segmenting and merging the individual pictures using a computer to convert the original artwork into electronic data, and to order and interface frames into sequence to form a composite image. It is further known that the composite image can be outputted to an imaging device which prints the image onto film and that the resulting film can be used to produce multiple prints of the composite image by transfer to a suitable substrate, such as paper stock. There are also various known processes of adhering to the paper stock lenticular lens material consisting of an array of identical spherically curved surfaces embossed on the front surface of a plastic sheet. The lenticular lens material refracts light from each image in sequence as the viewer's angle of perception changes. The result is the perception of motion from a series of still images.
However, it has not been previously known how to manufacture a traditional plastic card, such as used for a credit card, which has a multidimensional, lithographic image viewed through lenticular lens material imprinted therein. The various materials could not be successfully adhered and/or laminated in a manner so that the resulting plastic card was durable enough to withstand typical wear and use for a prolonged period of time.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a durable, long-lasting plastic card having a lenticular lens therein through which to view lithographic images, thereby imparting the illusions of depth and/or motion to the lithographic images.
Additional objects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.
To achieve the objects and in accordance with the purpose of the invention, as embodied and broadly described herein, the method of manufacturing a plastic card of this invention comprises the steps of (a) providing a sheet of lenticular lens material having a front side and a back side, the front side having an array of identical spherically curved surfaces embossed thereon, the back side being flat; (b) coating the back side of the sheet of lenticular lens material with a vinyl resin base; (c) printing the back side of the sheet of lenticular lens material with a composite lithographic image; (d) coating the back side of the sheet of lenticular lens material with an adhesive; (e) providing a sheet of plastic having a front surface and a rear surface; (f) printing the rear surface of the sheet of plastic; (g) providing a sheet of clear PVC overlay film; (h) laminating magnetic material onto the sheet of clear PVC overlay film; (i) assembling and collating the sheet of lenticular lens material, the sheet of plastic and the sheet of clear PVC overlay film with laminated magnetic material so that the sheet of lenticular lens material is oriented on the top of the three sheets and the sheet of plastic is oriented in the middle of the three sheets;
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) laminating the assembled sheets, collated sheets of lenticular lens material, plastic and the clear PVC overlay film with laminated magnetic material; (k) applying a coating to the laminated, assembled sheets in a designated area where a hologram is to be stamped; (l) cutting a plurality of cards from the laminated, assembled sheets, each of said plurality of cards having a front side and a back side; (m) stamping the hologram onto the designated area on the front side of each of the plurality of cards; and (n) stamping signature panels onto the back side of each of the plurality of cards.
The accompanying drawings, which are incorporated and constitute a part of this specification, illustrate one embodiment of the invention and, together with the description, serve to explain the principles of the invention.
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patent: 3716439 (1973-02-01), Maeda
patent: 3836754 (1974-09-01), Toye et al.
patent: 4497872 (1985-02-01), Hoppe et al.
patent: 4758296 (1988-07-01), McGrew
patent: 5438928 (1995-08-01), Chatwin et al.
patent: 5605738 (1997-02-01), McGinness et al.
patent: 6016225 (2000-01-01), Andersoon
Green Susan
McGonigle George
Pfingst Dale Mitchell
Wang Jachin
Gray Linda
Hunton & Williams
MBNA America Bank, N.A.
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