JP2017533848A - Web processing system and web processing method - Google Patents

Abstract

The web processing system includes a transport mechanism configured to supply a continuous web of material along a transport path in the processing system, and a first print cylinder having a first diameter and a first print pattern, A first printing cylinder disposed adjacent to the transport path and configured to print a first image pattern on at least one surface of the continuous web; a second diameter different from the first diameter; A second printing cylinder having two printing patterns, the second printing cylinder being arranged adjacent to the transport path and configured to print a second image pattern on the first image pattern on the continuous web; Two printing cylinders and a system controller coupled to the transport mechanism and configured to control the transport mechanism according to at least one alignment procedure; The system controller may print at least one of the registration procedures when printing the first and second image patterns to print a final random image pattern on at least one surface of the continuous web. It is configured to selectively disable one. [Selection] Figure 2

Description

  The present invention relates to web processing systems and methods, and more particularly to a method for printing a random pattern or layout on a continuous web of material.

  The luxury item is usually protected by means of indicating the correctness of some source provided by the manufacturer in order to prevent counterfeiting of the luxury item. For example, a cigarette box may be tagged so that it can be tracked and checked for correctness. A commonly employed technique involves a method of applying an identification code or the like onto cardboard or paper using the latest printing techniques for tagging authenticity proofs to the desired preference items. Such printing techniques involve special knowledge about the manufacturing process or involve the use of materials that are difficult to obtain and are therefore difficult for imitators and plagiarists to reproduce.

  Patent Document 1 discloses a system for tagging a random pattern on a plurality of sheets of paper. The system uses a series of printing rollers, which can apply a random pattern out of phase on one or both sides of the plurality of sheets of paper.

European Patent Application No. 1125758

  One concept of the present invention is to provide a web processing system that can generate a patterned image on the web, wherein the patterned image is completely irregular, or at least virtually simulated. It is random.

  Accordingly, a first aspect of the invention is a web processing system comprising a transport mechanism configured to supply a continuous web of material along a transport path in the processing system, and a first diameter and a first A first printing cylinder having a printing pattern, the first printing cylinder being arranged adjacent to the transport path and configured to print a first image pattern on at least one surface of the continuous web; At least one second printing cylinder having a second diameter different from the first diameter and a second printing pattern, the second printing cylinder being disposed adjacent to the transport path and of the first image pattern on the continuous web. A second printing cylinder configured to print a second image pattern thereon, coupled to the transport mechanism and in accordance with at least one registration procedure A system controller configured to control a transport mechanism, wherein the system controller is configured to print a final random image pattern on at least one surface of the continuous web. And a processing system configured to selectively disable at least one of the alignment procedures when printing a second image pattern.

  A second aspect of the present invention relates to a method for processing a web, the method comprising transporting a continuous web of material along a transport path in a processing system with a transport mechanism, and a first diameter and a first print pattern. Printing a first image pattern on at least one surface of the continuous web using a first printing cylinder having at least one second diameter and a second printing pattern different from the first diameter. Printing a second image pattern on the first image pattern on the continuous web using a two-print cylinder and printing a final random image pattern on at least one surface of the continuous web; Therefore, when printing the first and second image patterns, at least one registration procedure for the transport mechanism is selectively disabled. Provided with that, a.

  According to a third aspect of the invention, the web of material comprises a random pattern printed on its surface, the random pattern being obtained according to the method of the second aspect of the invention.

  The dependent claims provide additional technical features and further improvements of advantageous embodiments of the invention.

  According to an embodiment of the processing system, the first print pattern and / or the second print pattern may be different.

  According to another embodiment of the processing system, the alignment procedure includes web transport speed control, lateral web placement control, transport path length control between the print cylinders, and web tension control. One or more of them may be provided.

  According to another embodiment of the processing system, the system controller is further coupled to the first printing cylinder and the at least one second printing cylinder, the first printing cylinder and the at least one second printing. The cylinder may be configured to be driven at different rotational speeds.

  According to another embodiment of the processing system, the system controller may be further configured to drive the first printing cylinder and the at least one printing cylinder at the same tangential speed.

  According to an embodiment of the method, the first image pattern and / or the second image pattern may comprise a random image pattern.

  According to another embodiment of the method, the first print pattern and the second print pattern may comprise different patterns.

  According to another embodiment of the method, the alignment procedure includes web transport speed control, lateral web placement control, transport path length control between the print cylinders, and web tension control. One or more of them may be provided.

  According to another embodiment of the method, the continuous web of material may comprise one of cardboard, paper, cellulose, fabric, plastic, metal, or a combination thereof.

  According to another embodiment of the method, the first printing cylinder and the at least one second printing cylinder may be driven at different rotational speeds.

  According to another embodiment of the method, the first printing cylinder and the at least one second printing cylinder may be driven at the same tangential speed.

  According to another embodiment of the method, printing the first and second print patterns comprises a composition comprising at least one of ink, varnish and wax on at least one surface of the web. May be provided.

  In one embodiment, the web according to the third aspect of the present invention may include separation means adapted to separate at least one sheet from the web, wherein the at least one sheet comprises Includes part of the printed random pattern. The separating means may comprise a score line, a dotted line, or a punch line formed in the web material.

  In one embodiment, the web material according to the third aspect of the present invention may include one of cardboard, paper, cellulose, fabric, plastic, metal, or a laminate obtained by combining them.

  A package comprising at least a portion made from a web may be manufactured using a web of material according to the third aspect of the invention.

  The present invention will be described in more detail with reference to exemplary embodiments depicted in the accompanying drawings.

  The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

  The drawings illustrate embodiments of the invention and, together with the detailed description, serve to explain the principles of the invention. Other embodiments of the present invention and many of the intended advantages of the present invention will become more readily appreciated as the same becomes better understood by reference to the following detailed description. The elements of the drawings are not necessarily on the same scale as each other. Similar reference numbers indicate corresponding similar parts.

1 is a diagram schematically showing a processing system according to an embodiment of the present invention in isometric projection. FIG. FIG. 6 schematically shows a part of a base web according to a further embodiment of the invention. It is a functional block diagram which shows the step in the processing method of the web which concerns on another embodiment of this invention.

  Although specific embodiments are shown and described herein, various alternative and / or equivalent embodiments are shown by those skilled in the art without departing from the scope and spirit of the invention. It will be understood that certain embodiments described and described may be substituted. In general, this application is intended to cover any adaptations or variations of the specific embodiments discussed herein. In particular, the specific features, characteristics and properties of the various embodiments as discussed below may be combined unless otherwise specified.

  In general, this application is intended to cover any adaptations or variations of the specific embodiments discussed herein. In the present invention, reference is made to a printing press and a printing system. The printing equipment is generally intended to comprise any combination of units, modules and recorders, or structural arrangements, which can carry the web to be processed along a transport path within the equipment. . Furthermore, the printing device may comprise any component suitable for pressing, stamping or printing a pattern, image, text string or colored area on one or both sides of the web being processed. . The printing apparatus may include a laser beam device, a developing device, a transfer device, a fixing device, a cutting device, a folding device, and one or more of the same conventionally known components in gravure and offset printing.

  FIG. 1 schematically shows a processing system 100. The processing apparatus 100 may in particular be configured to process and produce a web Wp printed with material. The web Wp comprises a material such as a laminate of cardboard, paper, cellulose, fabric, plastic, metal or combinations thereof. The processing system 100 typically comprises a plurality of processing stages 12 comprising a roller or supply unit, generally indicated by reference numeral 10 in FIG. The roller 10 forms part of a transport mechanism 11 that is configured to supply a continuous web W of material along a transport path in the processing system 100.

  FIG. 2 shows a functional diagram of a processing system for processing the web W, and may be understood as a conceptual illustration of the processing system 100 in FIG. The web W may be input to the processing system at the system input unit 8, transported through various processing stages 12, and output at the system output unit 9 as a printed web Wp. Among the processing units and modules not specifically shown, the processing system 100 is a first printing cylinder 1 having a first diameter d1, and has a first printing pattern formed on the first printing cylinder 1. A first printing cylinder 1 is provided. The first printing cylinder 1 is arranged adjacent to the conveying path so as to print a first image pattern, ie a printed image of the printing pattern of the first printing cylinder, on at least one surface of a continuous web W. It is configured. 1 and 2, the first printing cylinder 1 is configured to print the first image pattern on the bottom surface of the web W that moves between the first printing cylinder 1 and the corresponding pressure roller 4. .

  The processing system 100 further includes at least one second printing cylinder 2 having a second diameter d2 different from the first diameter d1 and having a second printing pattern formed on the second printing cylinder 2. It has a cylinder 2. For example, the second diameter d2 may be larger than the first diameter d1. The second printing cylinder 2 may be arranged in series with the first printing cylinder 1 and arranged on the downstream side of the first printing cylinder 1 in the conveyance path of the web W. Similarly, the second printing cylinder 2 is arranged adjacent to the conveying path, and the second image pattern, that is, the second printing pattern of the second printing pattern of the second printing cylinder is continuously printed on the web W. It is configured to print on one image pattern. In order to achieve such an object, the second printing cylinder 2 prints the second image pattern on the bottom surface of the web W moving between the second printing cylinder 2 and the corresponding pressure roller 5. It may be configured.

  As shown in FIG. 1, a third printing cylinder 3 may exist on the downstream side of the second printing cylinder 2. The third printing cylinder 3 has a diameter different from the diameter of the first and / or second printing cylinders 1 and 2 and preferably has a third printing pattern formed on the third printing cylinder 3. The third printing cylinder 3 that prints the third image pattern, that is, the printed image of the third printing pattern of the third printing cylinder on the surface of the web W that moves between the third printing cylinder 3 and the pressure roller 6. In order to obtain, a corresponding pressure roller 6 may be provided. Typically, the number of print cylinders 1, 2 and 3 is not limited to two or three, but may be any desired number greater than two instead.

  The first printed pattern and / or the second printed pattern is printed on the web W as an image pattern or layout, for example, as a decorative design or lines, dots or geometric shapes in various tones and / or line widths. May be. The first print pattern and the second print pattern may be various patterns that provide a final image pattern that forms an overlapping portion of the first and second image patterns on the web W, for example. That is, the various printing cylinders 1, 2 and 3 print various image patterns on each. The printing cylinders 1, 2 and 3 may be configured to transfer a liquid composition such as ink, varnish or wax onto at least one surface of the web W. The processing system 100 is configured to dry the liquid composition printed on the web W when transferred to the surface of the web W on the downstream side of each of the printing cylinders 1, 2, and 3. A module may be provided.

  The processing system 100 further comprises a system controller 7 coupled to the transport mechanism 11 and the printing cylinders 1, 2 and 3. On the one hand, the system controller 7 is responsible for controlling the printing cylinders 1, 2 and 3. For example, the system control unit 7 may be configured to drive the printing cylinders 1, 2, and 3 at different rotational speeds. Depending on the diameters d1 and d2 of the printing cylinders 1, 2 and 3, the system controller 7 causes each of the printing cylinders 1, 2 and 3 to be driven at the same tangential speed. The rotation speed may be changed. In this way, the passing speed of the web W is maintained constant during the entire printing process by the printing cylinders 1, 2 and 3.

  On the other hand, the system controller 7 is configured to control the transport mechanism 11 according to at least one alignment procedure. The alignment procedure may include, for example, control of web transport speed, control of lateral web placement, control of transport path length between the printing cylinders, and control of web tension. By selectively disabling at least one registration procedure when printing the first and second print patterns, the system controller 7 can provide a predetermined randomness in the printing parameters of the processing system 100. Thereby, the printed pattern can be made unreproducible. In particular, if one or more registration procedures are disabled, the first and second images can be obtained because the web W can be moved out of the registry across the first and / or second and / or third printing rollers. Each of the patterns has a certain degree of randomness. As a result, each of the first, second and third image patterns is random or pseudo-random, obtained at the exit 9 of the processing system 100 and shaped by a combination of the first, second and third image patterns. The final image pattern is also random or pseudo-random. Thus, the printed web Wp is printed with a unique final image pattern. Therefore, it is very difficult to reproduce the unique final image pattern.

  The processing system 100 may be used to print a continuous web Wp of material that includes a completely random or pseudo-random pattern printed on its surface. The web Wp may comprise separation means adapted to separate at least one sheet from the web Wp, such as a score line, a dotted line, or a punch line formed in the web Wp. Each separated sheet includes a part of a printed random pattern. The sheet may then be used in the manufacture of the package or tagging of the package. The package is, for example, a cigarette box.

  FIG. 3 schematically shows a block diagram of a method M for processing a continuous web of material, such as the web W of FIGS. Method M may be performed in particular with a web processing system, such as processing system 100 as illustrated and described in conjunction with FIGS.

  In the first stage, the method M comprises the step of transporting the continuous web W of material by the transport mechanism 11 along the transport path in the processing system 100 in M1. The web W may be made of, for example, a material including at least one of cardboard, paper, cellulose, fabric, plastic, metal, or a laminate obtained by combining these. The transport mechanism 11 may include a number of rollers such as, for example, a roller 10 and a web supply module. The transport mechanism may in particular be divided over a series of processing stages 12 of the processing system 100.

  In the second stage M2, the first image pattern is printed on at least one surface, for example, the upper surface, of the continuous web W using the first printing cylinder 1 having the first diameter d1 and the first printing pattern. . Next, in the third stage M3, at least one second printing cylinder 1 having a second diameter d2 different from the first diameter d1 and preferably having a second printing pattern different from the first printing pattern is used. Thus, the second image pattern may be printed on the first print pattern on the continuous web W. The printing process of M2 and M3 may comprise transferring a liquid composition such as ink, varnish or wax onto at least one surface of the web W, for example.

  In the fourth stage M4, at least one alignment procedure for the transport mechanism 11 in the processing system 100 is selected when the first and second image patterns are printed on the web W by the printing cylinders 1, 2 and 3. May be disabled. The processing system 100 performs various alignment procedures such as web transport speed control, lateral web placement control, transport path length control between the print cylinders 1, 2 and 3, and web tension control. You may be under control of the system control part 7 to control.

  By disabling at least one registration procedure for the transport mechanism 11, the first and second print patterns of the print cylinder may each provide a random image pattern on the web W. In order to create more randomness in the final image pattern obtained over the entire surface on the web W, the first print pattern and the second print pattern may provide different image patterns. In order to obtain the independence of the image pattern, the first printing cylinder 1 and the at least one printing cylinder 2, 3 may be driven at the same tangential speed, but at different rotational speeds. This ensures that the series of first and second image patterns are randomly moved relative to each other. On the other hand, by having the first and second printing cylinders 1, 2 and 3 moving at the same tangential speed, the web W in the transport mechanism without the risk of mechanical or tensile stress due to the printing process in different cylinders. A constant web speed is guaranteed.

  If the image pattern is transferred from the printing cylinder to the web W as a liquid composition, the composition may be dried at an optional stage M5 of the method M. As an alternative, the drying step may be performed after each of the printing steps M2 and M3.

  While certain features of one embodiment of the invention have been disclosed with respect to only one of several embodiments, the features may be advantageous and desired for any given or particular application. Depending on the circumstances, it may be combined with one or more other features of other embodiments. Further, to the extent that the terms “include”, “have”, “with” or other variations thereof are used in the detailed description or claims. These terms, as well as the term “comprise”, are intended to be inclusive. These derivatives may be used in addition to “coupled” and “connected”. These terms are used to indicate that two components work together or interact with each other, whether or not they are in direct physical or electrical contact. It should be understood that Furthermore, “top”, “bottom”, “left”, “right”, “down” used in the foregoing description with respect to the spatial arrangement of features, components, or parts of the embodiment shown in the drawings. Any terminology, such as “above” and similar terms, is used merely for ease of understanding and is not intended to limit the invention in any way.

1 printing cylinder,
2 printing cylinders,
3 printing cylinder,
4 Pressure roller,
5 Pressure roller,
6 Pressure roller,
7 system controller,
8 Web entrance,
9 Web exit,
10 Conveying roller,
11 Transport mechanism,
12 processing stage,
d1 cylinder diameter,
d2 cylinder diameter,
M method,
M1 method steps,
M2 method steps,
M3 method steps,
M4 method steps,
M5 method steps,
W Web,
Wp Printed web.

Claims (15)

A processing system (100) for a web (W),
A transport mechanism (11) configured to supply a continuous web (W) of material along a transport path in the processing system (100);
A first printing cylinder (1) having a first diameter (d1) and a first printing pattern, the first printing cylinder (1) arranged adjacent to the conveying path and on at least one surface of the continuous web (W); A first printing cylinder (1) configured to print a pattern;
At least one second printing cylinder (2, 3) having a second diameter (d2) different from the first diameter (d1) and a second printing pattern, disposed adjacent to the transport path, A second printing cylinder (2, 3) configured to print a second image pattern on the first image pattern on a continuous web (W);
A system controller (7) coupled to the transport mechanism (11) and configured to control the transport mechanism (11) according to at least one alignment procedure;
The system controller (7) is configured to print the first and second image patterns in order to print a final random image pattern on at least one surface of the continuous web (W). Configured to selectively disable at least one of the matching procedures;
Processing system (100). The first print pattern and / or the second print pattern are different;
The processing system (100) of claim 1. The alignment procedure may include one or more of web transport speed control, lateral web placement control, transport path length control between the print cylinders (1, 2, 3), and web tension control. With
The processing system (100) according to claim 1 or 2. The system controller (7) is further coupled to the first printing cylinder (1) and the at least one second printing cylinder (2, 3), and the first printing cylinder (1) and the at least one first printing cylinder. 2 configured to drive the printing cylinders (2, 3) at different rotational speeds,
The processing system (100) according to any one of claims 1 to 3. The system controller (7) is further configured to drive the first printing cylinder (1) and the at least one second printing cylinder (2, 3) at the same tangential speed,
The processing system (100) according to claim 4. Conveying a continuous web (W) of material along a conveying path in the processing system (100) by a conveying mechanism (11) (M1);
Printing (M2) a first image pattern on at least one surface of the continuous web (W) using a first printing cylinder (1) having a first diameter (d1) and a first printing pattern;
Using the at least one second printing cylinder (2, 3) having a second diameter (d2) different from the first diameter (d1) and a second printing pattern, the first on the continuous web (W). Printing a second image pattern on one image pattern (M3);
At least one for the transport mechanism (11) when printing the first and second image patterns to print a final random image pattern on the at least one surface of the web (W). Selectively disabling the alignment procedure (M4),
Web (W) processing method (M). The first image pattern and / or the second image pattern comprises a random image pattern,
The method (M) according to claim 6. The first print pattern and the second print pattern include different patterns.
The method (M) according to claim 6 or 7. The alignment procedure includes one of control of web transport speed, control of lateral web placement, control of transport path length between the printing cylinders (1, 2, 3), and control of web tension. It has the above,
The method (M) according to any one of claims 6 to 8. The continuous web (W) material comprises one of cardboard, paper, cellulose, woven fabric, plastic, metal, or a combination of these,
The method (M) according to any one of claims 6 to 9. The first printing cylinder (1) and the at least one second printing cylinder (2, 3) are driven at different rotational speeds;
The method (M) according to any one of claims 6 to 10. The first printing cylinder (1) and the at least one second printing cylinder (2, 3) are driven at the same tangential speed;
The method (M) according to claim 11. Printing the first and second printing patterns (M2, M3) moves a composition comprising at least one of ink, varnish and wax onto at least one surface of the web (W) Preparing to
The method (M) according to any one of claims 6 to 12. A web of materials (Wp),
With a random pattern printed on its surface,
The random pattern is obtained according to the method (M) according to any one of claims 6 to 13.
Material web (Wp).   A package comprising at least a part made from the web (Wp) according to claim 14.

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