DE29900808U1 - Sheet for transmitting confidential information - Google Patents

Description

BOEHMERT & BOEHMERT

LAW FIRM

Bochmcn & Bochmcn- Nicmanjuweg 133 ■ O-24I0S Kiel

German Patent and Trademark Office Zweibrückenstr. 12

80297 Munich DR.INC. KARL BOEHMERT. &Rgr;&Lgr;(&Igr;««&ngr;-&idiagr;!&Pgr;3| DIPL-ING. ALBERT BOEHMERT. PA lllcim) WILHELM JH STAHLBERG. RA, On™. DR.-ING. WALTEK HOORMANN. PA·. Dntnn DIPL-PHYS. DR. HEINZ GODDAR, PA-. Mu. DR.-ING. ROLAND LIESEGANO.PA·.»Un WOLF-DIETER KUNTZE. Ka. b™™·, Aue«· DIPL-PHYS. ROBERT MONZHUBER. Pa (I9J1-1»:) DfL LUDWIG COUKER. Ra. hn, DR. (CHEM.) ANDREAS WINKLER. PA·. Bn>. MICHAELA HUTH-DDERIG. RA. M0»*m DIPL-PHYS. DR. MARION TONHARDT. pa·. Hb-k DR. ANDREAS EBERT-WEIDENFELLER. RA. Dm™. DIPL-ING.EVA LIESEGANG.PA·.Bert»

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Alcohol abuse prevention policy BU-Market Coaiil. Alicante Pmfraumal Rq^caentatio« at tbe üD-TraJenwit &Ogr;&Ggr;&Ggr;&kgr;«. AlcanK PROF. DR. WILHELM NORDEMANN. Ka. Il DR. AXEL NORDEMANN. RA. PnU. DR. JAN BERND NORDEMANN, LLM. KA. Darin DIPL-PHYS. EDUARD BAUMANN. PA-. lu»bb.. DR.-[NG. GERALD KLOPSCH. PA-. Maaaktof DR. (CHEM.) HELGA KUTZENBERGER. PA·. Itelu DIPL-ING. HANS W. GROENING. PA-. Mfeot»* DR. ANKE SCHIERHOLZ, Attorney at Law DIPL-ING. DR. JAN TONNES. Pa. Ra. Ki.1 DIPL-PHYS. CHRISTIAN BIEHL. PA·, KM DIPL-PHYS. DR. DOROTHEE WEBER-BRULS. PA-. Kr»» DR.-ING. MATTHIAS PHILIPP. PA-. Bren&trade; DIPL-PHYS. DR. STEFAN SCHOHE, PA·. LaIp ₁₁ , MARTIN WDtTZ. RA. Bm DR. DETMAR SCHAFER. RA. Btn» DOT-.-CHEM. DR. ROLAND WEIS. PA. DUaacUurf DIPL.-PHYS. DR.-ING. UWE MANASSE. PA. kn DR. CHRISTIAN CZYCHOWSKL RA. B«<» CARL RICHARD HAARMANN. Attorney-at-law. Maa-J.«

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D5059

Kiel,

18.01.1999

Digikett form, label printing and

Laminating Technology GmbH,
Gildestr. 6-8, 24960 Glücksburg

Form for submitting a
confidential information

The invention relates to a sheet for transmitting confidential information with a tear-off section, after the removal of which a reading access to the confidential information is created.

Confidential information, especially that sent by post, such as

1966

Niemannsweg 133 · D-24105 Kiel · Telephone (04 31) 840 75 · Fax (04 31) 8 40 7?

MUNICH · BRBMEN - BERLIN - FRANKFURT - DÜSSELDORF - POTSDAM - BRANDENBURG - HÖHENKIRCHEN - KIEL - LEIPZIG ■ ALICANTL

e-mail: Poslmaster(äjBoehmert.Boehmert.dc

BOEHMERT & BOEHMERT
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The PIN number for debit cards is usually sent in a sealed envelope, which makes it clear to the authorized person whether a third party has already read the confidential information without authorization.

Up to now, printers have been used that write on a piece of paper inside the envelope using a carbon-copy film, with the outside of the envelope being blackened so that no information can be read from the envelope itself. In any case, this cannot be done without tools that would require a great deal of time. Complete security against lengthy examination of the envelope has not yet been achieved, but people are satisfied with the process because bank employees and postal workers, who only see the envelopes briefly, do not have such tools or criminal intent to gain access to confidential information. Unauthorized access, on the other hand, is usually achieved by tearing them open and is therefore noticeable after a short time.

However, the state-of-the-art sheets have the problem that they require a matrix printer, or at least a printer that applies pressure to print the carbon copy. However, such printers are becoming rarer and it is desirable to also print confidential information using modern inkjet or laser printers.

However, since laser printers only work on the surface, you cannot proceed as before.

The invention was therefore based on the task of developing a sheet for transmitting confidential information.

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BOEHMERT & BOEHMERT

create a system that makes it visible to the authorized user whether someone has gained access to the information or not, and that can be printed on using a modern printer that is not equipped with a writing pad.

According to the invention, this is achieved by a sheet with the features of the main claim. The subclaims give advantageous embodiments of the invention.

In particular, it is advantageous to provide an easily removable silicone, a so-called printing silicone, between a rear-tearable punched-out section of the sheet itself, the information being printed on a transparent or translucent film that is positioned in front of the tear-out point, the film is advantageously matt and the tear-out section that is positioned behind the film is blackened, so that the slightly matt printing in coarse grids cannot be distinguished by the human eye from the underlying blackening.

The problem here is to achieve an adhesive bond of the plastic film on the front that cannot be removed (because then the key information could be read), but on the other hand to enable the back to be removed from the adhesive film in order to use it translucent against the light or, after turning the removed part over, on a white background to read the confidential information.

This is solved by first printing a field covered with a film and closely printed with a silicone and then

BOEHMERT & BOEHMERT

The silicone-printed field is glued on overlapping the adhesive film and, in order to make the information printed on the film with a laser printer or an inkjet printer visible, a perforation is provided in the sheet for separating out a section behind the film which is completely covered with silicone on its front side.

Further advantages and features of the invention emerge from the following description of a preferred embodiment based on the accompanying drawing. It shows:

Fig. 1 is a plan view of the sheet in its unprocessed state,

Fig. 2 is a rear view of a partially detached section 16 from the sheet, and

Fig. 3 the confidential information after the rear section 16 has been removed.

The sheet for transmitting confidential information has in itself a tear-off section, after the removal of which a reading access to the confidential information is created, wherein a translucent film 12 is printed with a laser printer or another printer that only covers one surface with ink, which is applied above a field 10 provided with close printing, which in turn is printed with a silicone.

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BOEHMERT & BOEHMERT

The translucent or transparent adhesive film can be made accessible from the back of the sheet in order to make information 14 printed on the film visible by opening a perforation 18 in the sheet in order to separate out a section of the sheet 16 located behind the film 12.

The close printing of the field 10 advantageously consists of many characters which, when printed on top of each other, form a "confusing variety of lines ^11" .

The printed information 14 is advantageously printed with matt ink on a matt, essentially transparent film 12, whereby the remaining film can also be printed with a matt print, but with a lower degree of blackness.

Finally, it is even conceivable to create a sheet in which the detachable section 16 is provided on its back with a grid-like partial print, which only completes the overall information after the section has been torn out and reinserted with partial information printed on the film.

It is particularly advantageous to print gray information in a thin grid 12 with an amplification of the pixels for the actual confidential information 14 on the background 10 printed irregularly in black with many lines in many directions (for example, created by printing many letters on top of each other), as shown in Fig. 3.

Only after removing a rear-side tear-out section 16 (Fig. 2) is the information on the foil 12, which in Fig. 2 is in a small edge area, in which the perforated

BOEHMERT & BOEHMERT
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rized section 16 has been removed. The edge line 18 of the perforated section is advantageously made in micro-perforation. An authorized user can now see at any time from the intact micro-perforation whether the encryption information has already been read.

Claims (4)

&bull; «* BOiiHMERT &*BOEHMERT M *1 &mdash; D 5059 CLAIMS 1. Sheet for transmitting confidential information with a tear-off section (16), after the removal of which reading access to the confidential information is created, characterized in that - a field forming an optically dense background (10), the field (10) is covered with a film (12) which is at least translucent, wherein the optically densely printed field (10) is printed with a silicone in an area, above which the film (12) is applied overlapping the silicone-covered area on all sides, and to make information (14) printed on the film (12) visible, a perforation (18) is provided in the sheet for separating out a section (16) located behind the film (12). BOEHMERT & BOEHMERT 2. Sheet according to claim 1, characterized in that the dense printing of the field (10) consists of many characters. 3. Sheet according to one of the preceding claims, characterized in that the printed information (14) consists of a matt print that essentially covers the entire film (12) and only contains information that does not have a significantly greater degree of blackening. 4. Sheet according to one of the preceding claims, characterized in that the section (16) is provided on its back with a grid-like print, which, after being torn out and twisted so that the back is inserted into the field, completes a printed information (14) on the film with a (partial) information printed on it.