KR20060134033A - Method for producing fraud-proof value paper, and value paper produced by said method - Google Patents

Abstract

According to the first variant of the invention, the inventive method consists in using a thread in the form of a thread which is made of an elastic shaped plastic material provided with protective elements, bringing said thread into contact with the slot of a grid cylinder prior to the contact of the grid with a paper pulp, placing the thread core on the slot bottoms for fixing said thread core to the surface of paper, raising wings upward by means of inclined slots and in fixing said wings in the paper thickness during shaping and pressing. According to the second variant, the thread contact with the slot is carried out after the contact of the grid with the paper pulp, the thread core being disposed on the layer of the slot bottom and inside the paper. The wings are raised upward by means of the inclined walls of the slot and fixed to the paper surface by dehydration during shaping and pressing. In the third and fourth variants, the thread is embodied in the form of an endless strip which is made of a metallised plastic material and provided with a central core carrying visually controlled or machine- readable protective information and with side elements in the form of wings which are disposed symmetrically and/or asymmetrically with respect to the longitudinal axis of said core and arranged in an ordered and/or disordered periodical manner.

Description

Method for producing anti-counterfeiting paper and paper produced thereby {METHOD FOR PRODUCING FRAUD-PROOF VALUE PAPER, AND VALUE PAPER PRODUCED BY SAID METHOD}

The present invention relates to a method for producing a high quality anti-counterfeiting paper having an improved anti-counterfeiting function.

Methods of producing high quality anti-counterfeiting paper are already known, in which a thread contacts the wire of cylinder of a paper-making machine, and then a layer of paper pulp is formed and compressed in the bath. Dehydration by drying (see Russian C1, 2125938).

A disadvantage of the above mentioned method is that the area of the thread on the surface of the paper is so narrow that it is not sufficient to prevent forgery.

The present invention provides an improved method for producing a high-quality paper that allows a larger area of threads to come out of the paper surface and an improved identification for anti-counterfeiting and thus further to improve the anti-counterfeiting quality of the high-quality paper against forgery. The purpose is to provide high-quality paper with anti-counterfeiting function.

The above-mentioned object can be achieved by the first embodiment of the present invention, which includes a process in which a thread contacts a wire of a cylinder of a paper machine, dewatering and compressing a paper pulp layer formed in a bath. In a known method of producing high quality anti-counterfeiting paper, according to the present invention the thread is made of an elastic form of plastic with added anti-counterfeiting means, and has a sloped wall before the thread contacts the slot. Circular continuous and / or intermittent slots are made in the wire cylinders, the width of the slot bottom being the same size as the thread core width, and the threads of the thread in contact with the thread before the wires contact the paper pulp. Contact with the slot first to reduce the filtering ability and to secure the thread core to the paper surface. The thread core is firmly coupled to the bottom of the slot, the wing is turned upward due to the inclined wall of the slot wall, and the wing is fixed in the paper by dehydration in the formation and pressing stage. As a result, the thread is made of a resilient form of plastic with anti-counterfeiting elements, and the blades of the thread produce high quality paper which is fixed in paper.

The above-mentioned object can be achieved by a second embodiment of the present invention, which includes a process in which a thread contacts a wire of a cylinder of a paper machine, dewatering and compressing a paper pulp layer formed in a bath. In a known method of producing high quality anti-counterfeiting paper, according to the present invention the thread is made of an elastic form of plastic with added anti-counterfeiting means, and has a sloped wall before the thread contacts the slot. Circular continuous and / or intermittent slots are made in the wire cylinder, the width of the slot bottom being the same size as the thread core width, and the threads are brought into contact with the paper pulp in the bath after the wire is in contact with the thread. The first paper layer is formed on the wire surface and the slot in contact with the slot, and is placed in the bottom layer and the paper stock. The red core is fixed and the blade is raised upwards due to the inclined wall of the slot, and the blade is fixed to the paper surface by dehydration in the manufacturing and compression stages to prevent duplication. It is fixed by thermoplastic adhesion between the fibers. As a result, the thread is made of a resilient form of plastic with anti-counterfeiting elements, and the blades of the thread produce high quality paper which is fixed to the paper surface.

The above-mentioned object can be achieved by a third embodiment of the present invention, which includes a process in which a thread contacts a wire of a cylinder of a paper machine, dewatering and compressing a paper pulp layer formed in a bath. In a known method for producing anti-counterfeiting high quality paper, the thread according to the invention is in the form of an endless tape made of metallized plastic and has a core and a joint coating having a surface adhesion coating. having a lateral element in the form of a wing having an adhesive coating, said wing being formed symmetrically and / or asymmetrically with respect to the longitudinal axis of the core and positioned regularly and / or asymmetrically, said core being visually inspected or machined It has anti-counterfeiting information that can be read by, the core is fixed to the paper surface and the wings are manufactured and compressed. It is fixed to the paper by dehydration from the tablet.

As a result, the thread is made of metallized plastic and the core has visually or machine-readable anti-counterfeiting information, the core is formed on the surface of the paper and the wing of the thread is a high-quality paper fixed in the paper. Produced.

The above-mentioned object can be achieved by a fourth embodiment of the present invention, in which a thread is attached to a wire cylinder of a paper machine and includes a process of dehydrating and pressing a paper pulp layer formed in a bath. In a known method of producing high quality protective paper, the thread according to the invention is in the form of an endless tape made of metallized plastic and has a core and an adhesive coating with a surface adhesion coating. coating having a side element in the form of a wing, the wing being formed symmetrically and / or asymmetrically with respect to the longitudinal axis of the core and located regularly and / or asymmetrically, the core being visually inspected or machined. It has readable anti-counterfeiting information, the core is fixed in the paper and the wings are manufactured and compressed Is fixed to the paper surface by dehydration in exerts a copy protection effect.

As a result, the thread is made of metalized plastic and the core has protective information that can be visually inspected or machine-readable, the core being formed in paper and the wing of the thread being a high quality paper fixed to the paper surface. Produced.

Advantages and features of the present invention mentioned above are described in more detail in the detailed description of the preferred embodiments with the accompanying drawings.

1 shows a slot arrangement of a wire cylinder for carrying out the method according to the first and second embodiments of the invention,

2 is a schematic view showing the shape of a slot in FIG.

3 is a side view schematically showing a bath and a wire cylinder for implementing a first embodiment according to the present invention;

4 is a schematic diagram showing the shape of a wing of a thread;

5 is a cross-sectional view of the paper produced according to the first embodiment of the present invention,

6 is another layout view of the bath and the wire cylinder for implementing a second embodiment according to the present invention,

7 is a cross-sectional view of the paper produced by the second embodiment of the present invention,

8 is a thread arrangement diagram in the third and fourth embodiments of the present invention;

9 is a thread position view on a paper carrier for the third and fourth embodiments of the invention,

10 is a cross-sectional view of the paper produced according to the third embodiment of the present invention,

11 is a cross-sectional view of the paper produced according to the fourth embodiment according to the present invention.

The method of producing anti-counterfeiting high quality paper in all embodiments comprises the steps of attaching the thread 1 to the wire 2 of the wire cylinder 3 of the paper machine and subsequently forming a layer from the paper pulp 4 in the bath 5. It includes a step of dewatering once, and a step of compressing and drying (FIGS. 3 and 6).

In the first and second embodiments of the present invention, anti-counterfeiting elements (such as holograms, cinegrams, and optically variable systems) made of plastic in a resilient form (shown in the drawing) Thread 1 having a not shown) is used.

With a sloped wall, circular continuous and / or intermittent slots 6 are formed along the entire length of the wire cylinder 3 before the thread 1 abuts the wire. The width of the bottom 7 of the slot 6 is made equal to the width of the core of the thread 1 (FIG. 4).

According to the first embodiment, the contact of the thread 1 with the slot 6 takes place earlier than the contact of the wire pulp 4 with the wire in the bath 5 (FIG. 3), which would reduce the filtering capability. For the purpose the core 9 of the thread 1 is firmly fixed to the bottom 7 of the slot 6, which in turn causes the core (FIG. 5) to be fixed to the paper surface.

Where the core of the thread 1 is located, the core comes out on the paper surface. If a deepened gap in the wire is made in the path of the slot 6, the thread 1 is separated from the wire surface, in which case the thread 1 is covered with a layer of paper on both sides of the paper It will form inside.

Due to the inclined wall of the slot 6 (FIGS. 2, 4) the wings 10 of the thread 1 are facing upwards and the compression of the paper by pressing and the influence of the layer of paper stock 4 produced. In the process, the wings are formed in the paper of h thickness (Fig. 5), and performs a fixed role such as fixing bolts. The thread 1 is fixed to the paper by an external coating which is in mechanical contact with the paper fiber.

The thread 1 is firmly coupled to the paper surface because of the wing 10 having a bond coating on both sides (FIG. 5). The advantage of such a thread 1 is that the area of the thread on the surface is quite large, which means that it can accommodate complex anti-counterfeiting elements that can be easily visually inspected.

According to a second embodiment according to the invention (FIG. 6), the thread 1 is formed by de-metallization and is sealed with a microtext, symbol which is sealed by a luminescent dye. It is made of a resilient form of plastic with anti-counterfeiting elements such as symbols and bar codes, and the thread 1 contacts the slot 6 after the wire in contact with the paperstock in the bath 5. Enter the paper stock (4), a first layer of paper is formed on the wire surface and the slot (6) (Fig. 2), the core (9) is made on the floor and in the paper at the bottom (7), wing (10) Is formed (FIG. 7). In order to see the drawings and to easily understand the nature of the embodiments of the present invention, in Figs. 3 and 6, 12 is the water level, 13 is the inflow of the stock, 14 is the drainage.

After the wire is in contact with the paperstock, the thread 1 with the wings 10 (FIGS. 6, 7) is in contact with the bottom 7 of the circular slot, ie into the paper. At this time, the first pulp layer is formed on the wire surface including the surface of the circular slot 6, that is, a paper layer is formed.

The thread 1 is placed on a layer in the slot 6 and the core 9 is placed in a paper having a thickness of h (FIG. 7). Due to the sloping wall of the slot 6, which is not yet fully filled with paper stock, the blade 10 faces upwards and exits the paper surface, paper is made on the cylinder 3 (Fig. 6) and the blades appearing on the surface ( When 10) is pressed (FIG. 7), an anti-copy effect occurs and is fixed to the paper surface by the thermoplastic bonding between the thread coating and the fiber. The advantage of such a thread is that the area of the wings 10 appearing on the surface can be quite large so that a complex anti-counterfeiting element can be inserted into the thread for easy visual inspection.

The third and fourth embodiments according to the present invention for producing anti-counterfeit high-quality paper are threaded to the wire cylinder 3 of the paper machine, dewatering, compressing, and drying the layer of paper stock 4 formed in the bath 5. It includes the process of (Fig. 3, 6).

A thread 1 in the form of an endless tape made of metallized plastic can be used. The metallized plastic tapes are made of the same or different thicknesses on both sides, and are glued together, one of which has a metallization on the side to which it is glued, or one of which is a metallized mono-thread. Can be used.

Unlike the first and second embodiments, the thread 1 has a central core 15 with an adhesive coating, preferably having a thickness of 2-5 mm, and preferably a length of 3-5 mm. It has a side element in the form of a wing 16 having a joint coating, which is formed symmetrically and / or asymmetrically with respect to the longitudinal axis of the core 15, and is regularly and / or irregularly positioned. The core 15 includes holograms, changing-color elements, visible or invisible components depending on the viewing angle, and de-metallization elements visible in transmitted light. It contains protection information such as transmitted light, luminescent coating or local sealing.

According to a third embodiment according to the invention the core 15 is fixed to the surface of the paper 17, and the wings 16 are fixed in the middle of the paper 17 thickness h due to dehydration in the manufacturing and compression steps (FIG. 10). ).

According to the fourth embodiment of the present invention, the core 15 of the thread 1 is fixed inside the paper having a thickness of h, and the wings are formed on the surface of the paper 17 due to dehydration by manufacturing and compression processes to prevent duplication. Produces an effect (FIG. 11).

In order to implement the method according to the third embodiment, the core 15 and the blade 16 of the thread 1 have a surface adhesion coating to improve the bond between the paper fiber and the anti-counterfeiting thread and , Which is greater than the adhesive force of the fibers in the paper. The wing 16 serves as a foundation bolt that holds an installation strap on the surface.

The base of the blade 16 is partially exposed on the surface of the paper 17 (FIG. 10), and exhibits an effect that is difficult to forge. In general, it is impossible to forge such a huge thread without special equipment or special skills. Moreover, it is not the traditional form of thread as seen by the transmitted light, which gives the object additional protection.

According to a fourth embodiment of the present invention, the core 15 (FIG. 11), which is perfectly secured in a paper having a thickness of h, has various anti-counterfeiting elements which can be read by the machine even with the naked eye, in particular permeable De-metallization element seen by transmitted light, which emits different colors depending on the different sides of the joint coating, so that when the ultraviolet light shines on the transparent element You can see the color. For example, on one side the thread 1 emits yellow, the other side appears blue and blue due to the nonmetallization of the transparent element. Elements having magnetic substances and elements detected by X-ray irradiation may be used.

The embodiment according to the present invention for producing high quality paper for copy protection will be best used for commercial production of various kinds of security articles.

Claims (8)

A method of producing a high quality anti-counterfeiting paper comprising the step of a thread contacting a wire of a cylinder of a paper machine and subsequently dewatering and compressing a layer of paper pulp made from the bath, wherein the thread is of a resilient form with added anti-counterfeiting means. Threads made of plastic, circular continuous and / or intermittent slots with inclined walls before the thread contacts the slots are made in the wire cylinder, the width of the slot bottom being the same size as the thread core width, In the abutment, the thread first contacts the slot before the wire contacts the paper pulp in the bath, allowing the thread core to fit tightly at the bottom of the slot to reduce filtering ability and secure the thread core to the paper surface. Due to the sloping wall of the wall, the wing is facing upward, And a method for producing counterfeit-proof paper, characterized in that the blades are fixed in the paper by dewatering in the compression step. Paper produced by the method of claim 1. A method of producing high quality anti-counterfeiting paper comprising the step of a thread contacting a wire of a cylinder of a paper machine and subsequently dewatering and compressing a layer of paper pulp made from the bath. a thread made of elastic plastic, a circular continuous to / or intermittent slot with a sloped wall before the thread contacts the slot is made in the wire cylinder and the width of the bottom of the slot is a thread core It is the same size as the width. In contacting the thread, the wire contacts the paper pulp in the bath, and the thread contacts the slot to form a first paper layer on the wire surface and the slot, the bottom layer and the paper stock. Secure the threaded core in the inside, the wings are raised upwards due to the inclined walls of the slots, Fixing the wings on the surface of the paper by dehydration of the to prevent copying, the method of producing a counterfeit paper, characterized in that the wings are fixed by a thermoplastic adhesion (thermoplastic adhesion) between the thread coating and the paper fiber (fiber). . Paper produced by the method of claim 3. A method of producing an anti-counterfeiting high quality paper comprising the step of dewatering and compressing a layer of paper pulp from which a thread contacts a wire of a cylinder of a paper machine and subsequently made in a bath, the thread being endless made of metallized plastic. A tape-shaped core having a surface adhesion coating and a side element in the form of a wing having an adhesive coating, the wing being formed symmetrically and / or asymmetrically with respect to the longitudinal axis of the core and Regularly and / or asymmetrically positioned, the core has visually or machine-readable anti-counterfeiting information, the core is fixed to the paper surface and the wings are fixed in the paper by dehydration in the manufacturing and compression process. Method of producing a paper for preventing forgery, characterized in that. Paper produced by the method of claim 5. A method of producing an anti-counterfeiting high quality paper comprising the step of dewatering and compressing a layer of paper pulp from which a thread contacts a wire of a cylinder of a paper machine and subsequently made in a bath, the thread being endless made of metallized plastic. Tape-shaped and having a side element in the form of a core having a surface bond coating and a wing having a bond coating, wherein the wing is formed symmetrically and / or asymmetrically with respect to the longitudinal axis of the core and is regularly and / or asymmetrically positioned; The core has anti-counterfeiting information that can be visually inspected or machine-readable, and the core is fixed in the paper and the wings are fixed on the paper surface by dehydration in the manufacturing and compression process to exert a copy protection effect. How to produce anti-counterfeiting paper. Paper produced by the method of claim 7.

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