Planar sheet material

A sheet of sheet material

The invention relates to a flat sheet material for the production of sheet-shaped sheet for receiving an information.

Leaf-shaped sheets of paper, foil or the like. are described for receiving information with letters, numbers, graphics, barcodes and any other readable elements. In automatic printing of the so-called individualization are becoming increasingly important, therefore, individual sheets or a group of sheets at least partially are individually printed. For example, it is known from the advertising area to individualize an advertising brochure by selectively imprinting a customer name in the appropriate place and therefore attributable to that specific customer. The range of applications by such printed name or the like. Individualized sheets is limited.

The invention is based, to make the information content of a sheet of flexible the task.

For this purpose it is planned to provide the sheet material with an activated coating, wherein the coating fine voids and magnetizable particles are embedded. In this case, the cavities of a crystalline structure, and in particular formed as a microcapsule can be. By targeted activation of the cavities or the magnetic particles is provided an individualization of the arc. By surface coating of the sheet material with fine voids and magnetizable particles, the entire surface of a sheet made therefrom for recording, viewing and possibly changing of individualized information available. Especially in connection with encrypted and / or compressed data formats is a high individual amount of data can be stored. From the combination of the magnetizable particles with the fine voids in the coating which can be activated depending on the filling of the fine voids results in a variety of applications. For example, a plurality of sheets to be similarly printed in a known manner, wherein an individual information on a corresponding arc or a group thereof is stored invisibly by corresponding magnetization of the particles. In this case, a writing is according to the known through-copying set principle in question, in which by pressure on the fine voids or to the corresponding microcapsules a color former is released and produces a visible lettering in combination with a color developer.

In an expedient development of the fine voids include an electrically conductive content. When bursting example the microcapsules of this content is released and produced in accordance with the descriptive pattern electrically conductive tracks. In particular, in conjunction with the magnetizable particles can be produced by chip-like structures for storing and processing personal data to be printed by technical means put. Through the full coating of Bogenmate- rials can be used for producing such a structure, the entire surface of the sheet.

With a choice of magnetizable particles with electrical conducting several possibilities for the production of electrically conductive traces. For example, the magnetizable particles may be arranged in the coating between the cavities. When rupture of cavities and released an electrically conductive material conductive compounds. In an expedient alternative, the magnetizable particles are arranged inside the microcapsules and electrically isolated by the walls. Only by destroying the capsule walls electrical conductivity is produced. The insulating effect of the capsule wall contributes to a significant selectivity between the two states "electrically conductive" and "electrically isolated" when. In addition, the capsule walls also have a corrosion-protective effect on the magnetizable particles.

In an advantageous development of the arc by activating the coating is so individualized that the coating contains a security feature. This security feature can be, for example, an electric and / or magnetic watermark. Here is the bow than ordinary writing paper or the like. Used, the marking quality is not affected or only slightly by the visually unrecognizable watermark. With a corresponding particular-contacting reader, the watermark can be detected and thus GE the authenticity of the sheet or of a pleading be checked. For example, companies, offices, individual departments thereof or individuals by said watermark can hold individualized sheets on stock. Briefs can be clearly the appropriate person, department, company or the like according to the individual watermark. Assign. The respective sheets of the same base material with a uniform coating can be activated are high. The individualization through an electronic and / or magnetic watermark takes place after manufacture of the paper thereof by corresponding activation of the coating with respect to its microcapsules, the magnetisable particles or in combination. The individualization of only following the sheet material producing the sheet material can be manufactured under conditions of large volume easily. Nevertheless individualization by Watermark is possible even for very small units individualization readily.

In an expedient alternative, the security feature contains information about a password. This information can change the password itself, for example, in encrypted form, or even a key for decrypting be an externally entered password. As password, for example, is an individually assigned PIN number or the like. In question. This can be, for example, pressure-technical means of universally prefabricated sheet material personally individual cards or the like. Manufacture. These may include debit cards from department stores or the like., As well as health insurance cards or the like. With a variety concerning the person of the cardholder individualized information. Suitably to a Sheet in the standard format, for example, DIN A4 format provided, wherein the sheet contains a subfield with said individual card. The arch itself is arbitrary printable in plain text, for example, advertising material or instructions for use of the card. These can be generally maintained, during the individualization occurs only in non-visible form by means of magnetic and / or electrical storage. Another degree of customization can be achieved such that, for example, the holder of a card on the sheet in clear enters their own password or other desired identification and for example, by an appropriate electronic structure in the activatable layer then on the said structure in an encrypted form is transmitted to the card. Thereby, even contribute to the individualization of the owner.

The reading of the password, for example, be such provided in the context of health insurance cards, that access to a database is possible only by joint authorization by the patient and the physician with appropriate entry of a password and matching with the health insurance card. This is to prevent unauthorized access to confidential patient data preventable. In connection with customer cards and in particular in the formation of corresponding cards on the sheet material for use as a means of payment according to the invention will become apparent over the pure payment functions, additional possibilities. For example, after appropriate query the PIN number or other passwords or the like. The authenticity of the card, the available credit or the like. For example, on the Internet take place. An interconnected so-called "Trust Center" can ensure the confidentiality of the review.

In a further advantageous embodiment of the sheet is processed into a label of a product, wherein an individual security feature authenticity information contains the corresponding goods. The corresponding labels are individualized with respect to the product or its manufacturer. Via corresponding contactless readers this safety information can be read and thus the authenticity of the label or the corresponding goods are checked. In particular, the magnetically stored security information can be read out of reading device even over long distances. This means goods with appropriate labels checking system with a packaging in larger containers as a whole to its authenticity. For example, in the context of border and customs controls options to combat counterfeiting and piracy of goods are thus given. Appropriate labels may also be used in the textile sector, with a suitable selection of the carrier material. Embedding the magnetic particles in microcapsules protects against corrosion during the washing process.

The individualization of single sheets or a set follows after the production of the sheet material. The total area of ​​the sheet material stands to accommodate individual features available. Depending on the loading filling the fine cavities and their activation may be optically visible or invisible applied only to electronic or magnetic reading on the sheet, the individual characteristics. Besides pure magnetization tion of the magnetisable particles is for storing the individual information and the destruction and thus the release of the contents to be included in consideration. The bursting of the microcapsules can be carried out by mechanical pressure, for example, with a dot matrix printer, or by heating according to the known thermal printing principle. Firmly into the microcapsules embedded particles can be changed by an electric or magnetic field or in their orientation, whereby a tearing of the capsule shell is effected.

Embodiments of the invention are explained below with reference to the drawings. Show it:

Figure 1 is a schematic cross-sectional view of a coating provided with an activatable sheet material.

Fig. 2 shows a variant of the sheet material of Figure 1 with magnetizable particles in the coating outside of microcapsules.

Figure 3 is a schematic view of an individualized sheet having a punched card customers and various individual security features.

Figure 4 is a schematic diagram of a microcapsule with an electrically conductive content and a magnetized particle. Figure 5 shows the arrangement according to FIG 4 under the action of a magnetic field with torn capsule wall..;

Fig. 6 is a schematic view of a medicine bottle with a customized by a security feature label.

Fig. 1 shows a schematic representation of a cross section through a sheet of paper 1, which is provided with an activatable coating 4. The coating 4 comprises a binder 8 are incorporated in the microcapsules. 6 The microcapsules 6 include fixed embedded magnetizable particles 9 and another electrically conductive material. Also, the magnetizable particles 9 are electrically conductive. The electrically conductive contents of the microcapsules 6 is electrically insulated by cell walls 7 of the microcapsules. 6 The sheet 1 can be provided with an individual information by the original un- magnetized particles 9 are selectively magnetized. By bursting the microcapsules 6 enters the conductive material 5, whereby conductive connections between the individual magnetizable particles 9 can be prepared. This is in addition to a pure information storage of individual data also allows a logical combination of such data by forming conductive, chip-like structures.

Fig. 2 shows a variant of the arrangement according to FIG. 1, in which the microcapsules 6 contain a conductive material 5. The magnetizable particles 9 are disposed in the binder of the coating 8 4 between the microcapsules. 6 Instead of the conductive material 5 or in combination it can be provided in microcapsules 6 and a color former. Fine cavities 3, which are formed in the embodiments shown by the microcapsules 6, if necessary, can also be produced by a crystalline structure of the coating 4 or in a similar manner.

Fig. 3 shows a schematic overview of a sheet 1 of a sheet material 2 as shown in FIG. 1. The sheet 1 is in parallel by a line 13 to an edge 12 in a marking area 15 and split an information carrier area 21. The stitching region 15 has a hole 14 for filing the sheet. 1 In the information carrier region 21 a subfield 10 is provided with an at least partially punched card customers 11th The customer card 11 may be an identity card, a credit card, a patient card, a telephone card or any other card with individual data. The sheet 1 is individualized by targeted activation of the coating 4 in the form of various security features 25th Some visually unrecognizable and contactless detectable by an appropriate reader magnetic watermark 22 represent a security feature 25, with for example, a limited amount of sheet 1 with respect to an issue date, an issuing company or issuing office may be made individually identified. Additional security features 25 are provided for an individualization in terms for example of a receiver person, in the example shown are the owner of the customer card 11. A signature field 18 is arbitrary writable with an implied signature 19th The customer card 11 has as individualizing security features 25 a optically invisible, magnetically readable coded Section 16 and an optically readable plain text field 17. The encoded area 16 contains encrypted information about a password. The plain text section 17 may include the name of the card holder and / or his passport photo. Other security features 25 interconnects 20 are provided which connect the security features 25 of the customer card 11 with the signature field 18 or its signature 19th The conductor tracks 20 can optically not be recognized without affecting the visually recognizable Beschreibbar- speed through the conductive material 5 or the conductive magnetisable particles 9 (Fig. 1, 2) made or adapted individually. This creates a data exchange between the signature field 8 and the coded area 16 or the plain text portion 17 of the customer card 11 is possible.

Fig. 4 schematically shows a micro capsule 6, which is filled with a conductive material 5 and a magnetisable particles 9. Also, the magnetizable particles 9 is electrically conductive, wherein this is assembled with the conductive material 5 are electrically isolated by a cell wall 7 of the microcapsule. 6 The particles 9 is firmly embedded in the cell wall 7 and unmagnetized unprocessed. For individualisation of a sheet 1 (Fig. 3) by means of releasing the contents of the microcapsule 6 is a schematically indicated magnetization of the particles 9 is first selectively made.

a magnetic field 26 is then applied as shown in FIG. 5, which 9 leads to an orientation of the magnetic particles in the direction of the magnetic field 26. The firm connection of the particles 9 to the cell wall ruptures 7 on these, as a result, the conductive material 5 can escape from the microcapsules 6 along the arrows 27th In this way, conductive traces may, for example 20 corresponding to FIG. 3 are prepared. Instead of the illustrated magnetic orientation of the magnetizable particles 9 6 may be provided by thermal means also an alignment by an electric field or an opening of the microcapsule.

Fig. 6 shows a further application example, a sheet 1, which is the label 24 processes a product. The product is shown for a medication bottle 23rd The label 24 has an ordinary label 19 in plain text. The sheet 1 is shown in FIG. 1 is formed, wherein in the coating 4 a visually unrecognizable, magnetically readable security feature 25 is attached with authenticity information about the medicine bottle 23rd Tailored solutions regarding place of manufacture, production date and other relevant information to determine the authenticity of the goods can take place.