Printing – Embossing or penetrating – Processes
Patent
1995-04-24
1997-04-22
Eickholt, Eugene H.
Printing
Embossing or penetrating
Processes
101 28, 101DIG43, 283 72, B31F 107
Patent
active
056221061
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a self-inking embossing system. The invention also relates to an embossing system where the embossing extends above, and below, the material embossed.
2. Dictionary
Each plate has at least two zones. In at least one zone, the desired image is positively embossed into the paper in that zone. In the other zone(s), the desired image is negatively embossed out of the paper in that zone.
Each plate is made up with two forms of protuberances --(a) those that produce the desired image (ie. the signature, seal and/or associated security background(s); and (b) those that form the neutral portions of the plate which are only there to ensure that the desired image is made visible, or is expressed or embossed into or out of, the sheet material.
Throughout the description and claims, the following terms shall be given the broad definitions set out hereinafter: cardboard, sheet plastics, metal foil, laminated sheets or the like; from (ie. below) the plane of the sheet material in that zone; (ie. above) the plane of the sheet material in that zone; portion has at least one ridge or protuberance to be impressed into the sheet material; portion has at least one recess or groove into which the sheet material is impressed; and drawings; graphics; or the like; and/or a combination of two or more of these.
3. Prior Art
There is an ever increasing need for improved security for financial and legal documents.
Large corporations can process millions of dollars daily and there is also the opportunity for unscrupulous persons to defraud the financial systems in place. Cheques or other negotiable documents can be stolen and forged signatures (or other authorities) applied thereto, or the whole documents can be forged.
Some corporations use signature machines to apply facsimile signatures to cheques, but these can be easily forged.
In some such machines, the signature(s) are printed and embossed onto the paper of the cheques. While the security against forging is improved, the quality of the signature(s) is poor.
For quality documents, eg. legal documents, registration certificates and bearer bonds, it is not possible to simultaneously ink and emboss the document and achieve a high quality result. In practice, the document is printed in one step and embossed in a second step, requiring considerable care to align the printing and embossing, eg. on a corporate seal.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an embossing system where respective portions of the desired image are positively and negatively embossed in the sheet material.
It is a preferred object to provide an embossing system where the indicia is simultaneously printed and embossed in the sheet material.
It is a further preferred object to provide an embossing system where the resultant embossing (and printing) provides a "mechanical fingerprint" in the sheet material which is extremely difficult, if not impossible, to forge.
It is a still further preferred object to provide an embossing system where the sheet material is provided with a computer identifiable (or recognisable) "fingerprint".
It is a still further preferred object to provide a system where the "fingerprint" can be scanned to detect forgery or tampering thereof.
Other preferred objects will become apparent from the following description.
In one aspect, the present invention resides in an embossing system to emboss at least one indicia into sheet material, including: and at least one negative plate portion; and plate portion and a respective complementary positive plate portion complementary thereto; in the sheet material and at least one other portion of the indicia is simultaneously negatively embossed in the sheet material.
The positively embossed portion of the indicia may surround, or be wholly or partly surrounded by, the negatively embossed portion of the indicia, or vice versa.
Ink may be applied to the positive plate portion of at least one of the plates to enable the indicia to be s
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Eickholt Eugene H.
Hilglade Pty Ltd.
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