EP1295182A1

EP1295182A1 - Flat material especially in the form of a sheet or a strip and device for writing on said material

Info

Publication number: EP1295182A1
Application number: EP01953945A
Authority: EP
Inventors: Wolfgang Bossert
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-02
Filing date: 2001-05-19
Publication date: 2003-03-26
Also published as: KR100854556B1; WO2001092961A1; US20030108733A1; US20060257634A1; US7056861B2; JP2003535429A; CN1432143A; CA2414031C; US7211544B2; AU2001276336A1; IL153217A0; CA2414031A1; KR20030063116A

Abstract

The invention relates to a sheetlike material (2) which is used to produce flat sheets (1) receiving information. A coating (4) provided with cavities is applied to the sheetlike material (2). Electrically and/or magnetically activatable particles (5) are incorporated into said coating (4).

Description

Flat material, in particular as a sheet or web and writing device for such a material

The invention relates to a flat sheet material with the features according to the preamble of claim 1 and writing devices with the features according to the preamble of claim 31 and claim 35.

Various embodiments of sheet material for producing sheet-like writing sheets are known, sheets being provided as information carriers, the information content of which is determined by color particles applied to the surface for optical recognition. The information generally consists of texts formed by letters or of graphic elements such as drawings or the like. The sheet generally consists of paper with cellulose or plastic fibers embedded in a binder or of a plastic film, such as is used for daylight projection. The color is applied by hand using appropriate writing utensils or using printing devices. The information content that can be summarized on a sheet is usually limited by the legibility of smaller letters, for example.

With the increasing spread of computers, particularly in office technology, the interaction between optical and electronic information carriers is becoming increasingly important. Modern, computer-controlled laser and magnetography printers allow a resolution of more than 1,000 dpi (dots per inch, dots per approx. 2.54 cm). However, the human eye only recognizes characters that come from a variety such points are composed so that the available resolution cannot be used for maximum information content. Conversely, it may be necessary to convert optically recognizable information into electronic information. For this purpose, documents are placed on a so-called scanner and scanned electro-optically. The resulting electronic image of the original has a high memory requirement. Downstream OCR or OMR software (Optical Character Recognition, Optical Letter Recognition; Optical Mark Reading, reading of handwritten or printed markings) can convert the point information read by the scanner into characters or letter information, which means a significant reduction in memory requirements , However, this conversion is time-consuming and, according to the current state of the art, usually requires a manual correction.

Another possibility of converting optically recognizable to electronic data can be done via MICR (Magnetic Ink Character Recognition), in which character recognition is carried out by scanning standardized magnetic fonts in a magnetic color. In a further known method, information is optically recognizable in a so-called bar code in the form of a system consisting of lines of different widths or spaced from one another, for example fixed on a sticker, which can be scanned using reading pens or hand or long-range scanners , A disadvantage of the systems mentioned is the immutability of information once printed.

The copying of documents is widely carried out by means of photocopying, the color information being optically scanned on a sheet described and is transferred to a drum. For example, in the so-called magnetography process, the drum is locally magnetically conditioned in such a way that a powdered color toner adheres to the corresponding points on the drum and can be applied to a further sheet as a copy of the original. Occasional soiling can adversely affect the quality of the copy.

The invention has for its object to improve the exchange of electronic and optically recognizable data.

The object is achieved by a flat sheet material with the features of claim 1 and by writing devices with the features of claim 31 or with the features of claim 35.

For this purpose, it is proposed to embed electrically and / or magnetically activatable particles in at least one coating of a sheet material. The same or a further coating has fine cavities, for example in the form of a suitable crystalline structure and in particular in the form of microcapsules, as are known from the production of carbonless paper. In particular, by embedding the electrically and / or magnetically activatable particles in the coating with the cavities, these particles can be applied to the sheet material in a common process together with the coating. Such a coating is suitable for large-scale mass-produced goods, so that sheet-shaped sheets can be produced inexpensively and in large quantities, on which optical as well as electrical or magnetic information or functions can be deposited. Through the flat Distribution, a high information content can be recorded on the sheet material both optically and, for example, magnetically or in combination thereof.

By combining optically readable and magnetically stored information, dialog-capable products can be produced from the sheet material according to the invention, on which information can be stored, changed and queried.

The particles mentioned are preferably arranged in the cavities mentioned, so that regardless of the content of the cavities, the coating can be carried out in one process without major modifications, as is already known in the large-scale production of carbonless paper. The corresponding sheet material is inexpensive to produce in this way.

Depending on the application, it may be appropriate to design the cavities or the microcapsule accordingly. For example, it can be expedient to fill the microcapsule with color former and to embed it in the coating together with the electrically and / or magnetically activatable particles. The manufacturing process can be simplified by embedding the electrically and / or magnetically activatable particles in a separate layer. It may also be expedient to arrange the particles mentioned in their own cavities or microcapsules and, for example, to introduce them into the coating in a mixture with microcapsules filled with color former. In a further advantageous variant, a cavity simultaneously contains the color former mentioned and an electrically and / or magnetically activatable particle. In a further proposed solution, a carbon copy is proposed in which fine cavities contain a color former which, in accordance with the known prior art, encounters a color developer when it bursts and thus becomes visible. The corresponding coating also contains electrical and / or magnetically activatable particles, so that both optically and magnetically recognizable information can be stored separately from one another or in interaction with one another in the carbon copy. In an advantageous embodiment, the copy set is designed as an endless set with a guide hole edge and is therefore particularly suitable for processing in the data output of computer systems of medium-sized data technology, personal computers and automatic typing and addressing machines. In systems of this type, both optically and magnetically recognizable information can be output with great reliability and a correspondingly large amount with little effort. In a further advantageous embodiment, the carbonless record is designed as a quick-disconnect record, with which data that are also optically and magnetically recognizable can likewise advantageously be stored. Such a quick disconnect set also has only one separating edge, as a result of which, after the separating set has been separated, at least three clean edges remain on the individual sheets, which enables their use for representative purposes and in particular in business correspondence.

In an advantageous development of the invention, at least some of the cavities in the coating are filled with fragrances. For example, in connection with advertising replies to be filled in, transfer forms for invoices or the like when a writing instrument is attached the cavities crushed and the fragrance released. A suitable fragrance that is perceived as positive can increase the motivation of the writer. The release can also take place by activating embedded electrical or agglutinable particles. In a further advantageous development, at least some of the cavities mentioned are filled with adhesives. Envelopes produced in this way can be sealed in an automated process, in particular in connection with magnetizable or electrically activatable particles.

In an advantageous embodiment, the sheet material is divided into zones, each of which is coated with different coatings with differently filled cavities. As a result, for example, envelopes or the like can be produced which have cavities filled with adhesive for automatic sealing in a zone. In a further zone with a coating, in the cavities of which color formers and agnetisable particles are arranged, an address field that can be read both optically and magnetically can be provided. Cavities with fragrances can also be provided in this zone, which are released when the address field is filled.

In a proposed solution, cavities filled with color former as well as electrically and / or magnetically activatable particles are embedded in the coating of a sheet material. The latter activatable particles interact with the fine cavities in such a way that, for example, the cavities burst by means of magnetic activation and the color former emerges. In cooperation with a color developer, as is known from carbonless records, this makes information on magnetic Paths made visible. For example, letters, characters, bar codes or the like can be magnetically applied to the sheet material and made visible at the same time by means of a magnetographic printer or the like. This means that the information content is available in a magnetically and optically recognizable manner on the sheet material at the same time, which enables evaluation both optically and electronically.

In a preferred embodiment, the particles mentioned are designed as magnetizable particles. For a sufficient data density, a grain size of the agglutinable particles of less than about 2-3 micrometers has proven to be expedient. The magnetizable particles are made from the materials commonly used in floppy disks or hard disks with hard magnetic properties of high remanence and high coercive force and in particular from chromium dioxide, iron oxide, polycrystalline nickel-cobalt alloys, cobalt-chromium or cobalt-samarium alloy or from barium Ferrite.

By means of targeted magnetization of the particles mentioned, information can be stored in binary form or in plain text, as in the case of a tape or diskette. In particular, if the web or sheet material also comprises a paper layer, this can also be written on or printed on and thereby carry not only magnetic but also optically detectable information. This results in a large number of advantageous possibilities, in particular with regard to the ability to communicate. For example, the desired information can be stored magnetically and the web or sheet material can be provided with additional notes by hand. It is also possible to use the same information both in writing and to lay table on the web or sheet material, which results in the possibility of direct reading by a viewer and reading by a suitable magnetic scanning device for feeding into a computer.

All of the above-mentioned designs are advantageously formed from heat-resistant materials in such a way that the corresponding sheets can be processed in photocopiers, laser or magnetography printers and other devices with high heat development without loss of quality.

In another proposed solution, a sheet material with electrically and / or magnetically activatable particles is proposed, which is processed into memo notes with a self-adhesive strip. Such notes can be used, for example, to write down telephone notes or the like using a hand-held pen with a magnetic tip, which are then stored on such a note, both visually and magnetically recognizable. Such a sticky note can be temporarily attached to a file or at any other point with a self-adhesive strip, the information content being able to be recorded and processed later with a magnetic scanner if necessary.

In particular, simple reproduction is possible, for example, by means of a slightly modified magnetography printer, by means of which a direct magnetization of the embedded particles is made possible without a toner powder. If a toner powder is used at the same time, the desired information can be applied both magnetically and optically in one work process. In the case of training with agnetisable particles and color former filled Microcapsules, as are known for carbonless papers, can burst the capsules under the influence of pressure or heat and release the enclosed color former. The initially colorless color former then encounters a color-developing material, which is applied in the coating with the cavities or on the surface on an underwritten copy sheet. The interaction of the color former and the color developing material creates a visible copy. In connection with a suitable device, this results in the possibility, for example, of initially describing a corresponding sheet only magnetically and, following a dialog process with various query and change or correction processes, to make the stored information visible.

In addition to the labeling option described above, the sheet material according to the invention also permits further handling options, as are known from the usual paper sheets described. For example, punching, stapling, filing and archiving and also gluing or gluing such as with paper sheets is possible. For this purpose, the sheet material, which is typically produced in an elongated form and wound into rolls, is advantageously trimmed in the form of a sheet with a standardized base area, in particular in A4 format, so that it is processed in standard printers, copiers and so on and in standardized form Files can be archived. Such a sheet or sheet material is advantageously divided into sub-areas, at least one of which is designed as a read / write area. A further sub-area can then be provided exclusively for attaching staples, perforations or a glue binding, without the stored agnetic see information impaired. The reading / writing area is expediently identified by a printed marking, so that the user can easily see where he can, for example, make a suitable perforation.

In an advantageous variant, the sheet material has conductor tracks which can be printed on from a conductive ink and expediently consist of electrically conductive particles embedded in the coating mentioned. The particles can be, for example, a metal powder and / or the above-mentioned agnetisable particles, which fulfill a double function as magnetic data storage and as an electrical transmission element. The sheet material is expediently divided into a plurality of reading / writing areas 12, each of which is connected to a conductor track. In this way, structures can be implemented in the manner of a circuit in which, for example, the magnetic information of an individual read / write area can be queried or changed at a remote location via a conductor track.

Also suitable as particles to be embedded in the coating are microchips such as are used, for example, in so-called "smart labels". Such a microchip is expediently connected to the above-mentioned conductor tracks and allows, for example, an evaluation of the magnetic information stored in the individual read / write areas. In an expedient development, an antenna for data exchange with the activatable particles is applied to the sheet material, in particular by printing. The antenna can also be formed by the electrically activatable particles. This increases the operational Rich of sheet material in which the stored information can be read and / or changed at various points, for example when passing through a manufacturing process, using different means appropriate to the situation. The sheet material mentioned can, for example, be guided through a scanner-like device, the magnetic information being scannable. In places where such direct access is not possible, the magnetically stored information can be queried via the antenna mentioned, for example in connection with a microchip, the typical reception distance being in the range of one meter. If larger interrogation distances are required in the course of the process, the magnetic information can be made visible and optically scanned, for example, using the microcapsule color former technique described above. For example, the information can be applied magnetically and optically as a bar code, the optically recognizable bar code being readable in a range of up to approximately 10 using a long-range scanner.

Products made from the sheet material according to the invention, such as carbon copy sets, forms, labels, waybills, ballot papers and much more, are capable of dialogue and are therefore versatile. The sheet material can be printed in multiple layers on non-impact printers, with the magnetic information corresponding to the printed information or also being able to deviate therefrom. In the case of an "intelligent" waybill, for example, the magnetic information can be adapted to the current status in the course of the transportation process and an accompanying dialog process and can be made visible, for example, during delivery. In a further proposed solution, a shipping envelope and, in particular, an envelope is formed from a flat sheet material with electrically and / or magnetically activatable particles. For example, in connection with a magnetic writing device, such as a magnetography printer or a hand-held pen with a magnetic tip, an address can be written on such an envelope so that the postman can see it, while the magnetically applied information can contribute to an improved automatic letter delivery.

In a further proposed solution, a brochure is formed from the sheet material with electrically and / or magnetically activatable particles. Due to the simultaneous optical and magnetic writeability, a so-called "personalization" of the brochure is possible in a simplified manner, for example by taking personal or address data from a database and computationally

It can be applied magnetically and / or optically recognizable to the brochure. For example, an advertising brochure on the cover sheet can thus be addressed personally to an individual customer, while the information that is magnetically available at the same time simplifies automated administration and delivery to the customer.

In a further proposed solution, an insert folder, in particular for written documents, is formed from a sheet material with a coating containing electrically and / or magnetically activatable particles. Banks, insurance companies or the like can use this insert folder to put together information and / or offer documents that have been put together in a simplified manner, the insert folder on the one hand being optically recognizable bar in plain text, for example, to the addressees, while the simultaneously magnetically stored information about these addressees simplifies automated management of this insert folder together with the offer documents contained therein.

In a further proposed solution, the sheet material is processed with electrically and / or magnetically activatable particles to form a zigzag-folded tab paper. Such tab paper can be used advantageously in data processing systems in particular when large amounts of data have to be put on paper unattended. A zigzag folded tab paper can be drawn in and processed in suitable printers with a tractor with high reliability, whereby the desired information can be stored optically as well as magnetically legibly on the tab paper. With correspondingly large amounts of data, further processing by electronic means is expedient, which is supported by the magnetic readability. At the same time, the optical readability allows a random check.

A writing device which has a magnetographic writing head is suitable for applying the magnetic information to a sheet material with embedded, magnetizable particles. With such a magnetography writing head, as is known from magnetography printers, magnetizable particles can be conditioned precisely along its longitudinal axis. Through a relative movement of the sheet material to the magnetography writing head transversely to its longitudinal axis, each individual point on the sheet material can be magnetized in the desired manner, comparable to a laser printer or photocopier. Are there very high write speeds can be achieved with a very high data density.

In an expedient embodiment of the writing device, two magnetography writing heads are aligned with one another with an intermediate gap through which the sheet material can be passed. Due to the mutual alignment, a high magnetic field strength and thus a reliable magnetic conditioning of the magnetizable particles in the sheet material can be achieved in the gap. A downstream magnetic reading unit is expediently provided, by means of which the magnetic information on the sheet material can be read. This creates a combination device for writing and / or reading. In particular, with a suitable design, the magnetically written information can be immediately checked for errors in the magnetic data storage by the downstream magnetic reading unit. This contributes to data security in particular if the information is initially only stored magnetically without visual visualization and thus the possibility of control.

The writing device described above is advantageously designed as an expansion unit for a conventional printer. As a result, existing printing presses or also inexpensive, mass-produced workplace printers can be expanded in such a way that the known data processing with optically readable information is expanded by the magnetically stored information with little additional effort. In a corresponding combination of the writing device and the formation of the sheet material, large amounts of sheets can be labeled optically and magnetically legibly at low cost without toner, ink, etc. Furthermore, it is proposed to design a writing device in the form of a hand-held pen that has a magnetic tip. For example, in connection with self-inking paper, such a hand-held writing device can be written on this paper in an optically readable manner, comparable to a pencil or ballpoint pen, the same information also being magnetically applied to the automatic data acquisition by the magnetic tip. With such a writing device, for example, ballot papers, bank orders or the like can be labeled by hand from a corresponding sheet material, which can then be evaluated reliably and at high speed in large quantities using a magnetic reading device. Depending on the application, the pen-shaped writing device can have a pure magnetic tip or a combination of magnetic tip and, for example, a ballpoint pen refill or the like.

A suitable sheet material can be produced, for example, in which iron oxide is arranged within a kaolin / SBR latex layer and is crocheted onto a paper substrate of, for example, 49 g / m ² . The magnetizable particles typically have a surface density of approximately 0.1 to 0.4 g / m ² . A conventional CB coating ("Coated Back" = backside coating) also gives the sheet material the properties of known carbonless paper. In a further variant for producing the sheet material, magnetizable particles, for example made of Mn-Zn ferrite with a grain size of <3 micrometers, are embedded in such microcapsules in a conventional method for microcapsule formation. The production of the microcapsules can for example in an oily emulsion with gelatin and gum arabic. The emulsion can be applied, for example, by knife coating or by printing onto the paper substrate. All known printing processes and in particular the gravure printing process are suitable as printing processes. The arrangement of the magnetizable particles in the microcapsules also avoids undesirable discoloration of the sheet material in addition to the advantages mentioned above. A suitable protective additive, for example in the form of wheat starch, can be added to protect the microcapsules from bursting when applied to the paper substrate. The areal density of the magnetizable particles is expediently in the range between 0.1 and 1.2 g / m ² . In the case of separate coatings for the microcapsules and the magnetizable particles, any coating sequence can be chosen. It may also be expedient to arrange the layers on two different sides of the sheet material. For further processing of the sheet material and also for the application of magnetic information, the further processing of the sheet material in roll form can be expedient.

Embodiments of the invention are explained in more detail below with reference to the drawing. Show it:

1 is a perspective overview representation of a printed and magnetically writable sheet,

2 shows a cross-sectional enlargement of the sheet according to FIG. 1 in a schematic representation, merged with another sheet to form a carbon copy, 3 shows a cross-sectional view through a variant of the bow according to FIG. 1 with magnetizable particles in microcapsules,

3b shows a variant of the arrangement according to FIG. 3 with magnetizable particles in a separate coating,

Fig. 4 shows a schematic representation of an arrangement of

Read / write areas in connection with a microchip and a transmission antenna,

5 shows a schematic representation of an envelope with magnetizable particles,

6 is a schematic representation of a personalized brochure,

7 shows a schematically illustrated personalized insert folder,

8 shows the schematic representation of a notepad with self-adhesive strips and magnetically activatable particles,

9 shows a schematic representation of an endless set of sheet material according to FIG. 2,

10 is a schematic representation of a quick disconnect set made of the sheet material according to FIG. 2,

11 shows a schematic illustration of a zigzag-folded tab paper with magnetizable particles, Fig. 12 in a schematic overview

Computer system for information processing with sheets according to the invention,

13 is a schematic diagram of a magnetic writing device,

14 shows a variant of the writing device according to FIG. 13,

15 shows a basic illustration of a combination of a writing and reading device,

16 shows the arrangement according to FIG. 15 in connection with a conventional printer,

17 shows a basic illustration of a pen with a magnetic tip.

1 shows a sheet 1 cut from a sheet material 2 with a carrier layer 30, which is divided into two partial areas 10, 11. The partial area 10 extends along the longitudinal edge 28 and has a perforation 29. The other partial area 11 forms a read / write area 12 and is identified by a printed marking 13. The sheet 1 can have any format and, in the exemplary embodiment shown, is formed in A4 format.

Fig. 2 shows an enlarged detail of a cross section through a copy set 15 with a sheet 1 according to Fig. 1, in which the carrier layer 30 of the sheet material 2 is made of paper 31, any paper qualities and also cardboard boxes can be used. There is a coating 4 on the carrier layer 30 applied in which cavities 3 and electrically and / or magnetically activatable particles 5 are embedded. The cavities 3 can be formed by a suitable crystalline configuration of the coating 4 and in the exemplary embodiment shown are microcapsules 6 which are filled with a color former 7. The activatable particles 5 can be carbon particles or other electrically conductive particles and, in the exemplary embodiment shown, are metallic magnetizable particles 9. The sheet 1 is combined with a further sheet of sheet material 14 to form a copy set 15, the sheet material 14 being coated with a color developer 27 which, in cooperation with the color image 7, causes discoloration in the microcapsules 6. The sheet material 14 can additionally be coated with a coating 4 corresponding to the sheet material 2. The magnetizable particles are made of the materials commonly used in floppy disks or hard disks with hard magnetic properties of high remanence and high coercive force and in particular of chromium dioxide and can also be made of iron oxide, polycrystalline nickel-cobalt alloys, cobalt-chromium or cobalt-samarium alloy, for example or be made of barium ferrite. The grain size is about 2-3 microns. The materials used are heat-resistant.

3 shows a variant of the sheet material 2, in which different types of microcapsules 6 are embedded in the coating 4 in a mixed manner. A part of the microcapsules 6 is filled with a color former 7 and another part of the microcapsules 6 with magnetizable particles 9. Another part of the microcapsules 6 is filled both with the color former 7 and with corresponding activatable particles 5. A further part of the microcapsules 6 contains one in addition to the magnetizable particles 9 Fragrance 55 or an adhesive 56. The color developer 27 is also introduced into the coating 4. The color former 7, or the fragrance 55 or the adhesive 56 can be released from the cavities 3 by activating the particles 5. The color former 7 meets the embedded color developer 27 and is thereby visible. The particles 5 can be activated by magnetic or electrical means and in particular by utilizing a heat effect. The sheet material 2 can be used in one layer to hold data of a magnetic type and can be used according to the microcapsule principle described above. As in the exemplary embodiment according to FIG. 2, the carrier layer 30 can be formed from paper 31 and in the exemplary embodiment shown is a film 32 made of PET.

FIG. 3b shows a variant of the arrangement according to FIG. 3, in which the carrier layer 30 is provided with two further different coatings 4, 4 '. The coating 4 contains the microcapsules 6, while the magnetizable particles 9 are arranged in the further coating 4 '. In the exemplary embodiment shown, the carrier layer 30 consists of paper 31. In the other features and reference numerals, the arrangement according to FIG. 3b corresponds to the arrangement according to FIG. 3.

4 shows a schematic representation of a section of a sheet 1 on which a multiplicity of read / write areas 12 are provided. The activatable particles 5 are provided in the form of magnetizable particles 9 in the area of these reading / writing areas 12. The read / write areas 12 are each connected to a microchip 8 via a conductor track 16. The conductor tracks 16 can be glued on or printed on from conductive ink and, in the exemplary embodiment shown, are made of electrical risch conductive conductive particles 5 formed. The microchip 8 likewise forms an activatable particle 5 embedded in the coating 4. The microchip 8 is arranged in the focus of a printed antenna 17, via which the information content of the reading / writing areas 12 can be transmitted to a remote reading device, not shown. The read / write areas 12 can be printed in plain text or, for example, with bar codes, the bar code, for example, also being magnetically stored in the magnetizable particles 9 and being able to be queried via the antenna 17. In addition to the known one-dimensional bar codes, two-dimensional bar codes with a correspondingly increased storage density can also be used.

FIG. 5 shows a shipping envelope 39 in the form of an envelope 40 made from a sheet material 2 according to FIG. 1. The shipping envelope 39 can be designed in any letter format or as a package envelope, package envelope made of coated cardboard or the like. The sheet material 2 of the envelope 40 has two zones 57, 58, which are each provided with different coatings 4. Zone 57 serves for the automated sealing of envelope 40, the coating 4 of which contains adhesives 56 and magnetizable particles 9, comparable to FIG. 1. The envelope 40 has an address field on the overleaf, which is formed by the further zone 58. Their coating

4 contains magnetizable particles 9 as well as color formers 7 and a fragrance 55.

FIG. 6 shows a brochure 41 in which a stack of paper 31 is bound in a cardboard box 49. The cardboard 49 is as sheet material 2 according to FIG. 1 with activatable particles

5 trained. In addition, the paper 31 can also be designed as sheet material 2 according to the invention. To 7 is made from a sheet material 2 according to the invention in the form of a coated cardboard 49, a personalized insert folder 42 for offers, insurance documents or the like. 8 shows a notepad 51 made from the sheet material 2 according to the invention, the individual memos 54 of which have a self-adhesive strip 44 on a common edge 50, by means of which the individual memos 54 are held together and by means of which an individual memo can be attached to any base as required ,

FIG. 9 shows an endless set 45 which is formed from a copy set 15 according to FIG. 6. The individual layers of the sheet material 2, 14 (FIG. 2) of the copy set 15 are connected to one another in the region of a guide hole edge 46 for a printer tractor, for example by crimping, gluing or by means of a multiflex binding. After the inscription, the guide edge 46 can be severed along a perforation 52.

FIG. 10 shows a quick disconnect set 47 which consists of a multi-layer copy set 15 with a sheet material 2 according to the invention according to FIG. 2 and an upper cover layer made of paper 31. The individual layers are glued together along an edge 50; the glued edge 50 can be separated along a perforation 52 to separate the individual layers.

11 shows a zigzag-folded stack of ruler paper 48 made from a sheet material 2 according to FIG. 1. The sheet material 2 has a ruling 53 and a guide hole edge 46 on the side for a printer tractor. 12 shows a schematic representation of the essential components of an office computer system for the combined optical and magnetic processing of sheets according to the invention. For this purpose, a computer 115 is provided as the central element, in which texts or graphics can be created and made visible on an associated monitor 120 during the display phase. Possibly. For example, text already present on a sheet of paper can be scanned by an electro-optical scanner 116 and fed into the computer 115 via a line 121 for further processing. Finished texts can then be placed on a sheet for optical recognition by a user using a printer 24.

In a manner comparable to the optical processing described, the system shown can be used to process magnetic information on a sheet 1 according to the invention (FIGS. 1-4) by means of a magnetic reading unit 22 and a magnetic writing device 35. The magnetic reading unit 22 and the magnetic writing device 35 are each connected to the computer 115 via a line 121. The magnetic information on a sheet 1 can be read by the magnetic reading unit 22 and processed further in the computer 115 or made visible via the monitor 120. After a processing operation, the resulting magnetic information can be magnetically written onto a sheet 1 via the magnetic writing device 35, which is in particular a modified magnetographic printer. The arrangement shown also enables the mutual conversion of magnetic to optically recognizable information and vice versa. Magnetic information, for example read by the magnetic reading unit 22, can be op- be printed on a sheet 1 in a recognizable manner. In addition, the printed sheet 1 can then be provided with the corresponding magnetic information in the magnetic writing device 35.

The individual devices shown, which are interconnected to form a system, can also be combined to form combined devices as required. For example, a reading device for sheets 1 according to the invention is expedient, in which the optical scanner 116 and the magnetic reading unit 22 are combined, both types of information being readable sequentially or simultaneously, depending on the design of the device. The printer 24 can also be combined with the magnetic writing device 35 in a combined device. When using the magnetography method, for example, the magnetic information and, using a toner powder, the optically recognizable information can be applied simultaneously to a sheet 1.

A writing device can also be advantageous in which, in a combined magnetography and thermodynamic process, a sheet 1 according to FIG. 3 is sequentially written magnetically and then by activating the microcapsules 6 filled with color former (FIGS. 2, 3). Combination devices comprising the magnetic reading unit 22 and the magnetic writing device 35, optionally in conjunction with an electro-optical scanner 116 and / or a printer 24, may also be expedient. In this way, a copying device similar to a known photocopier is created. If necessary, a control unit can be integrated in all the device combinations mentioned, so that the connection to a computer 115 can be dispensed with. 13 shows a basic illustration of a section of a magnetic writing device 35, in which a sheet material 2 with embedded magnetizable particles 9 is guided along a magnetographic writing head 18. The length of the magnetography head 18 corresponds approximately to the width of the sheet material 2, so that each individual point on the sheet material 2 can be magnetized precisely on the sheet material 2 transversely to the transport direction 21 by means of the magnetography writing head 18. The sheet material 2 is pressed against the magnetography writing head 18 by means of a drum 19 and the rotation is transported in the direction of the arrow 20.

FIG. 14 shows a basic illustration of a variant of the writing device 35 according to FIG. 13, according to which two magnetographic writing heads 18 are aligned with one another in such a way that a narrow gap 33 remains between them. A sheet material 2 can be passed through the gap 33 in the transport direction 21. The two mutually aligned magnetography write heads 18 generate a strong magnetic field in the gap 33 in the direction of the arrow 34 for conditioning the magnetizable particles 9 (FIG. 2 and following) in the sheet material 2.

15 shows a basic illustration of the essential components of the magnetic writing device 35, in which the magnetography writing head 18 is arranged in a writing unit 37 such that the sheet material 2 is guided past it in the transport direction 21 by means of a plate 36. A reading head 38 is provided in a downstream magnetic reading unit 22, by means of which the magnetic reading unit 22 can be used on its own or as a contact. troll unit for the information magnetically written in the writing unit 37 can be used.

FIG. 16 shows the writing device 35 according to FIG. 15 as an extension for an ordinary printer 24, which can be a laser or ink jet printer. The printer 24 can be designed as a dot matrix printer, whereby in connection with a sheet material according to FIGS. 2 and 3 and the coloring microcapsule technique described above, an ink ribbon, toner or the like can be dispensed with. In the exemplary embodiment shown, the magnetic writing device 35 is connected downstream of the printer 24 with respect to the transport direction 21 of the sheet material 2, as a result of which, after optically recognizable labeling of the sheet material 2 in the printer 24, magnetic information can additionally be applied via the magnetic writing device 35. It can also be expedient to provide the magnetic writing device with respect to the transport direction 21 in front of the printer 24, as a result of which, for example, magnetic information on the sheet material 2 can first be read and, if necessary, made visible by the printer 24.

17 shows a further embodiment of a magnetic writing device 35, which is designed in the form of a pen 25 which can be guided by hand. The pin 25 has a magnetic tip 26 for the magnetic conditioning of the magnetizable particles 9 in the sheet material 2 (FIG. 2 and following). The pen 25 can be designed as a combination device, for example as a ballpoint pen or pencil in connection with a magnetic tip 26.

Claims

Expectations

Flat sheet material for the production of sheet-like sheets (1) for receiving information with at least one coating (4, 4 ') applied to the sheet material (2), the coating (4, 4') containing fine cavities (3), characterized in that that electrically and / or magnetically activatable particles (5) are embedded in the coating (4).

Sheet material according to claim 1, characterized in that the cavities (3) are microcapsules (6).

Sheet material according to claim 1 or 2, characterized in that the particles (5) are arranged in the cavities (3).

Sheet material according to claim 1 or claim 2, characterized in that the particles (5) are embedded between the cavities (3) in the coating (4).

Sheet material according to one of claims 1 to 4, characterized in that the cavities (3) are filled with color former (7).

Sheet material according to claim 5, characterized in that the sheet material (2) with a second, containing a color developer (27) Sheet material (14) is placed one on top of the other and combined to form a carbon copy (15).

Sheet material according to claim 5 or 6, characterized in that the copy set (15) is designed as an endless set (45) with a guide hole edge (46).

Sheet material according to claim 5 or 6, characterized in that the copy set (15) is designed as a quick-release set (47).

Sheet material according to one of claims 1 to 8, characterized in that cavities (3) filled with fragrances (55) are provided.

Sheet material according to one of claims 1 to 9, characterized in that cavities (3) filled with adhesives (56) are provided.

Sheet material according to one of claims 1 to 10, characterized in that the sheet material (2) is divided into different zones (57, 58) with differently filled cavities (3). Sheet material according to one of Claims 1 to 11, characterized in that the content of the cavities (3) can be released by activating the particles (5),

Sheet material according to one of claims 1 to 12, characterized in that the particles (5) are electrically conductive. Sheet material according to one of claims 1 to 13, characterized in that the electrically activatable particle (5) is a microchip (8).

Sheet material according to one of claims 1 to 14, characterized in that the magnetically activatable particles (5) are magnetizable particles (9) in particular made of chromium dioxide.

Material according to one of claims 1 to 15, characterized in that the magnetizable particles (2) have a grain size of less than about 2 to 3 micrometers.

Sheet material according to one of claims 1 to 16, characterized in that the sheet material (2) is divided into partial areas (10, 11), one of which forms a read / write area (12).

Sheet material according to claim 17, characterized in that the reading / writing area (12) is identified by printed markings (13).

Sheet material according to one of claims 1 to 18, characterized in that the sheet material (2) is trimmed in the form of a sheet (1) with a standardized base area, in particular in common DIN formats such as A4 format.

Material according to one of claims 1 to 19, characterized in that the web or sheet material (1) comprises a paper layer (10). Material according to one of claims 1 to 20, characterized in that the materials used are heat-resistant.

Sheet material according to one of claims 1 to 21, characterized in that the sheet material is provided with a self-adhesive strip (44).

Sheet material according to one of Claims 1 to 22, characterized in that the sheet material (2) has conductor tracks (16), in particular made of electrically conductive particles (5).

Sheet material according to claim 23, characterized in that the sheet material (2) has a plurality of reading / writing areas (12) to which at least one conductor track (16) is connected.

Sheet material according to claim 24, characterized in that the reading / writing areas (12) are connected to the microchip (8) via the conductor tracks (16).

Sheet material according to one of claims 1 to 25, characterized in that an antenna (17) for data exchange with the activatable particles (5) is applied to the sheet material (2), in particular by printing.

Sheet material according to one of Claims 1 to 26, characterized in that a shipping envelope (39), in particular in the form of an envelope (40), is formed from the sheet material (2). Sheet material according to one of claims 1 to 26, characterized in that the sheet material (2) is processed into a brochure (41).

Sheet material according to one of claims 1 to 26, characterized in that an insert folder (42), in particular for written documents (43), is formed from the sheet material (2).

Sheet material according to one of claims 1 to 26, characterized in that the sheet material (2) is processed into a zigzag-folded tab paper (48).

Writing device for sheet material (2) with a coating (4) in which magnetizable particles (9) are embedded, characterized in that a magnetographic writing head (18) is provided for precise magnetic activation of the magnetizable particles (9).

Writing device according to claim 31, characterized in that two

Magnetographic recording heads (18) are aligned with one another with an intermediate gap (33) for the passage of the sheet material (2).

Writing device according to claim 31 or claim 32, characterized in that a downstream magnetic reading unit (22) is provided.

Writing device according to one of claims 31 to 33, characterized in that the writing device (35) is designed as an expansion unit (23) for a conventional printer (24).

Writing device for a sheet material (2) with a coating (4) in which magnetizable particles (9) are embedded, characterized in that the writing device (35) is designed in the form of a hand-held pen (25) with a magnetic tip (26).