This price-effective process has proven extremely environment friendly in deterring counterfeiters. Cards utilizing a clear hologram movie overlay on a digitally printed ID card protects the inks from excessive abrasion and put on, which extends the card life and improve the safety of your ID playing cards. The holographic overlay prevents alterations to the ID card information and combats copying or duplicating the ID card.
The overlays offered listed below are 'peel and stick' transparent labels that are manually affixed after the ID card is printed. The measurement of the overlay is barely smaller than a normal PVC ID card. ITW Security Division’s HoloPC enables prospects to embed a holographic safety function inside polycarbonate (PC) playing cards.
Obviously for any given project, the geometric relationship between the picture and its associated mark have to be fixed. In most circumstances, the mark is centered on the image, which is okay. Positioning the mark at either the leading or trailing edge of the picture might place it near one of the embossing seam strains. The mark must be alongside the image, not between photographs. Most registration systems have a 'windowing' characteristic, which allows them to disregard false signals like die seams.
The coated internet eighty is passed over a pair of idler rollers 88 and through a drying tunnel 89 which units the liquified adhesive eighty five thus forming the final holographic composite sheet 20. Apparatus and the feeding path for the composite sheet 10 shown in FIG. 5, the composite sheet 10 is fed from the provision reel 23, around a decrease loafer curler 29, then upwardly over a pair of upper loafer rollers 41 and 49. Roller 49 has its exit aspect 49A considerably vertically aligned with the entrance side 26A of the chrome-confronted curler 26. Contact of the composite sheet 10 over such widespread floor space serves to stabilize the oriented polypropylene substrate A.
This permits doc designers to mix the benefits of premium holography with these of a highly sturdy PC card physique. The result— a safe card that can’t be delaminated, a ten-12 months document life, and vibrant, simply authenticated holographic security features that are extremely tough to counterfeit. Our selection of holographic sizzling stamping foils can be found in silver, gold, clear and a spread of other metallic colours.
An applicator pipe 86 repeatedly replenishes liquified adhesive in the pan eighty four. Desirably, a health care provider blade 87 is positioned between the exit side of the pan 84 and the curler eighty two to remove extra liquid adhesive eighty five. As a result, the correct amount of adhesive might be utilized to the embossed composite sheet 10' to provide a coated internet 80.
While this function makes it potential in some circumstances to make use of a mark between pictures, setup is difficult and waste is prone to enhance. 5 also reveals apparatus for applying heat activated adhesive to the embossment layer of the newly embossed composite sheet 10'.
The other holographic design possibility is to create a 'registered image' hologram. A registered image is a single picture or logo which requires exact positioning on the substrate to be aligned correctly. Registered images are solely provided using customized holographic foil. Each image on the foil ought to have an associated registration mark. This is true even when many holograms will be stamped concurrently.
As might be appreciated, when the embossed composite sheet 10' exits the nip between the embossing curler 30 and the rubber nip roller 31, the newly embossed embossment receiving coating F might be dealing with upwardly. The gravure cylinder eighty three is mounted for rotation such that its decrease one-third to at least one-half is positioned in a pan 84 by which liquified heat actuated adhesive eighty five is contained. As the gravure cylinder 83 rotates in the pan 84, its decrease-most floor will be dipped into the liquified adhesive eighty five and carry such adhesive because it exits from the pan 84.
Except for the stabilizing influence brought on by such widespread contact between the heated (200° C.) chrome-faced roller 26, the oriented polypropylene substrate A of composite sheet 10 would generally tend to shrink. If it were subjected to such heat along the line contact 27 illustrated in FIG. 4, such shrinkage would forestall the formation of commercially satisfactory product. The warmth activated adhesive coating G is formulated for its capacity to stick to the particular substrate to be used within the ultimate doc.