DE102006040874A1 - Document characterizing method for electro graphic printing machine, involves providing document with bar code, and pigmenting region of bar code with color material for visualizing stripes, where stripes of bar code are transparent - Google Patents

Abstract

The method involves providing document with a bar code, whose stripes (1) are transparent and surfaces are wiped. The region of the bar code is pigmented with a color material for visualizing the stripes. The bar code is applied in a negative form in such a manner that the stripes form and place readable codes in the end instead of stripe gaps. The pigmented regions are scanned and are inverted for reproduction of the bar code. A bar code reader is provided for reading the bar code.

Description

The Invention relates to a method for marking a document, in particular using a printing device, preferably a printing machine, preferably an electrographic working Press.

Of the Invention is based on the object, a method of the aforementioned To show a genre with which a document with a possible inconspicuous, but nevertheless diverse and precise can be provided with information-containing marking, wherein the information preferably be electronically detectable should.

These Task is inventively characterized solved, that the document is provided with at least one bar code whose stripes are transparent and whose surfaces can be wiped off are.

Of the formed according to the invention and applied bar code is very inconspicuous and with advantage can be created visually inconspicuous. In particular, he is too with copiers, Scanners or the like not recognizable and reproducible. The Inventive marking is therefore particularly suitable for marking an original, or can serve to produce a kind of signed original or to certify. The term "document" should be understood in the broadest sense.

on the other hand The labeling can be seen with advantage with very simple means and be made detectable. This is according to a development the invention provided that for visualization of the strip the area of the bar code is colored with a dye, which is wipeable by the strips themselves, such that the spaces between remain stained colored the strip. To such a coloring may preferably be a commercial one Felt-tip pen can be used, which is usually at hand anyway. The rigid code is then almost negatively recognizable. To this bill to carry the bar code are applied in a negative form such that the strips instead of stripe gaps of the final one Reading specific codes can be trained and placed. Another possibility would in that the colored Areas are read and inverted to reproduce the bar code become.

To the Reading the code can advantageously be a well-known barcode reader be used.

Of the Stripe code according to the invention can be printed with advantage with a printing press. Of course, too a manual creation by painting, gluing or the like or a machine creation by a kind of labeling or the like conceivable. Many printing presses have an excess printing unit that over one suitable printing material has or can equipped or retrofitted become. For example, offset presses often have a Coating unit.

The Could strip according to the invention from a Clearcoat to be created.

Yet more advantageous is the use of a digital printing machine, in particular for one customizable pressure, with which also the bar code according to the invention can be personalized or customized. For this comes in particular an electrophotographic printing machine or such a pressure device in question. Hereby could according to the invention, the strips preferably be prepared from a clear toner. In known per se In this case, the gloss or the smoothness of the surface of the Strips by fixation or postfixing (Glossing) of the Toners are set.

by virtue of its multiple, above-mentioned possibilities, Properties and advantages of the bar code according to the invention in an advantageous Way preferably be used as a security feature. It can he, for example, fulfill the purpose of a watermark or the like, but with even more options an individual information content.

The Can strip even with test marks, encryptions or the like, for example with typographic numbers, letters or the like added which could also be created transparently not to attract attention.

One embodiment the use of the method according to the invention, from which further inventive features may arise that the invention is not limited in its scope, is shown in the drawing. Show it:

1 a plan view of an inventively created, transparent bar code and

2 the bar code according to 1 with colored according to the invention environment.

1 shows a plan view of an inventively created, transparent bar code, which springs from pure imagination. Preferably, standardized barcodes could be used, as they are generally known.

The bar code according to the invention comprises strips 1 which, for example, could have different widths, especially in different sequences. These stripes are transparent, making them visually very difficult to recognize. In addition, they are made of a material with a wipeable surface and / or with an ink-repellent and / or hard-ink-accepting surface.

To visualize and capture the bar code, the environment 2 of the bar code and the spaces 3 between the strips 1 , which accept color, are colored, for example, with a commercial felt-tip pen. The Stripes 1 even after that, they can be wiped off again and freed from paint residues, for example with a disposable paper towel. It then results in a picture, as exemplified in 2 shown. The bar code with its stripes 1 then appears white on color, preferably white on black, so quasi negative, and can be detected because of its contrast to the environment, preferably with a known bar code reader. The detected bar code could then be inverted to a positive version if necessary.

at a permanent color of course that would be Barcode final visible, noticeable. It would be therefore also conceivable, the bar code only temporarily, for example, with erasable graphite, to visualize.

Claims (10)

Method for marking a document, in particular using a printing device, preferably a printing press, preferably an electrographically operating printing machine, characterized in that the document is provided with at least one bar code whose strips are transparent and whose surfaces can be wiped off. Method according to claim 1, characterized in that that to visualize the strip the area of the bar code dyed with a dye which is wipeable by the strips themselves, such that the interspaces colored between the strips remain. Method according to claim 2, characterized in that that for coloring a commercial felt-tip pen is used. Method according to claim 2 or 3, characterized that the bar code is applied in negative form, that the strips instead of stripe gaps of the end to a reading certain codes are formed and placed. Method according to claim 2 or 3, characterized that the colored ones Areas are read and inverted to reproduce the bar code become. Method according to claim 4 or 5, characterized that a barcode reader known per se is used for reading the code becomes. Method according to one of the preceding claims, characterized characterized in that the strips are made of a clearcoat. Method according to one of claims 1 to 6, characterized that the stripes are created from a clear toner. Method according to one of the preceding claims, characterized characterized in that the bar code is used as a security feature becomes. Method according to one of the preceding claims, characterized characterized in that the strips are supplemented by test marks.