JP2008023998A - Coding performed by embossing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method as described in the preamble of claim 1, and a transfer film as described in the preamble of claim 18. <P>SOLUTION: The coding equipment for transferring an image-area providing layer or a coating layer onto a printing material from the transfer film has to be used with adaptability so as to manufacture the complicated printing material. Thus, at least one module-type film sticking device FA is provided in a sheet rotary press, so as to realize partial coding for providing a releasable coating in an image area. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method and an apparatus and a transfer film for transferring an image area providing layer or covering layer from a carrier film to a printed sheet according to the preambles of claims 1, 10 and 18.

  It is known to produce a metal layer on a printed sheet using a film transfer method. As an example, Patent Document 1 describes a printing material and a printing apparatus using such a material. A sheet processing machine having a paper feeding device and a paper delivery device is provided with a plurality of printing devices and one coating device. In at least one of these printing apparatuses, an adhesive pattern is applied as a design (Drucksujet) using a lithographic printing method. The coating apparatus provided subsequent to the printing apparatus includes an impression cylinder, a press roller, and a film guide. In this film guide, the film strip is guided from the film stock roll through a transfer gap provided between the impression cylinder and the press roller of the coating apparatus, and after the film strip exits the coating apparatus, it again on the discharge side. Wrapped. The transfer film has a carrier film, and various functional layers such as a metal layer made of aluminum or a plastic layer can be provided on the carrier layer. A separation layer is provided between the functional layer and the carrier film. The functional layer can be peeled from the carrier layer by the separation layer.

  The printed sheet is passed through a coating device after the adhesive is applied flat or provided with an adhesive pattern. At this time, the printed sheet placed on the impression cylinder is combined with the film material by the press roller. At this time, the functional layer provided downward is intimately coupled with the area of the printed sheet on which the adhesive is applied. Thereafter, the functional layer adheres only to the pattern area where the adhesive is applied or to the adhesive area provided on the entire surface. At this time, the functional layer is peeled from the carrier film in the region of the adhesive pattern. The printed sheet is discharged in a coated state.

  Furthermore, it is widely known that information described on an information medium or a lottery ticket is coated using a so-called scratch coating. This removes the covering of the information that is covered when necessary, thereby making an evaluation or examining the outcome of the game. In such a case, the coating of the corresponding material to be printed is often performed by screen printing, which requires a separate cost from the original printing process of the product, which is relatively expensive.

  Similarly, from Patent Document 2, there is potential information in a printed product (information embedded in the printed product that has been completed and cannot be easily recognized when the printed product is not operated with the naked eye. Information and methods are known. Here, the adhesiveness of the printing material is changed according to desired information, so-called latent information, by the coating process. Thereafter, the printing ink is applied flatly. Potential information becomes visible by rubbing. At this time, the printing ink can be partially removed from the printing material because the adhesiveness is changed by the pretreatment process.

The disadvantage of such methods is that they cannot be applied on an ad hoc basis. Such methods require extensive expertise in complex processes and are difficult to operate.
European Patent No. 5695520 German Patent Application No. 102005024989

  For the above reasons, an object of the present invention is to provide a method according to the preamble of claim 1 and a transfer film according to the preamble of claim 18. With this method and transfer film, a flexible printed sheet can be easily, reliably, economically and accurately applied. Such methods and transfer films must be easy to operate.

  The solution of such a problem is realized in the transfer film having the features of claim 18 by the method having the features of claim 1 in the apparatus having the features of claim 10.

  For example, a method in which a removable partial coating for performing a removable coating on an information medium to be coated with information characteristics is performed in a sheet-fed rotary press and the coating is performed by cold = film = stamping is preferred. Proposed.

  By suitably combining coating units such as a module-type varnishing device, a sheet-feeding device, and a module-type coating device, it becomes possible to attach a film on one side or both sides. With such a method and apparatus, the production of a patch or film composite set having special effects and functions can be combined with the printability on both sides of the printing material.

The operation of the method is as follows.
1. In in-line printing or in-line = coating, a composite type printing material is manufactured by sheet-fed rotary printing press and cold = film = stamping. Thereby, it is possible to combine the provision of information and the application of a layer that changes the information.

2. The application of the adhesive required for cold film stamping is performed in the area of information to be coated in the printed image area. The adhesive has a smaller adhesive force than the coating material to be used and is guaranteed to remove film components from the carrier film.

3. The coating or partial coating performed by film application by cold film = stamping is used to provide an easily peelable scratch film.

4). A coating or partial coating performed by film application by cold film = stamping is used to provide a solid release film that is easily peelable.

5. Potential information is introduced by other printing methods into coatings or partial coatings made by film application by cold film stamping.

6). The apparatus is a printing machine, and has one or a plurality of printing apparatuses in order to generate necessary image portion information. In the coating apparatus provided inside the printing press, partial coating by cold = film = stamping can be performed.

7). Partial coating can also be performed in an off-line process in a further printing press equipped with a coating device.

  The present invention will be described in more detail below with reference to the drawings. The drawings show the following.

FIG. 1 shows the components of a sheet-fed rotary printing press, which has two printing devices and is used for the following purposes.
First, a flat adhesive pattern or an adhesive pattern that provides an image line portion is provided on the printed sheet (printing apparatus as the coating apparatus 1).
In a subsequent printing device, the printed sheet is guided through the transfer gap 6 under pressure with the transfer film 5 (coating device 2).

  The transfer gap 6 of the coating apparatus 2 is formed by the press roller 3 and the impression cylinder 4. The press roller 3 may correspond to the blanket cylinder of the offset printing apparatus, and the impression cylinder 4 may correspond to the impression cylinder of the offset printing apparatus. The press roller 3 may correspond to the plate cylinder of the module type coating apparatus, and the impression cylinder 4 may correspond to the pressure cylinder of the module type coating apparatus. Shown is a web guide of the transfer film inside the coating apparatus 2 used for film transfer.

  Alternatively, a film transfer device can be incorporated into the coating device 1 as shown in connection with the coating device 1. Thereby, a built-in modular film sticking device is realized. In this case, in the impression cylinder 4, a press roller 3 ′ is disposed behind the transfer gap between the printing blanket cylinder or plate cylinder 13 and the impression cylinder 4. In this way, the film-like web 5 ′ of the transfer film is coated on the printing material by the coating device 1, then conveyed to the transfer gap 6 ′ formed as described above, and immediately unloaded immediately thereafter. The As shown in FIG. 1, the foil stamping process by the cold method is performed in a single module-type film sticking device FA.

  As schematically shown in the coating apparatus 1 of FIG. 1, in the built-in module type film sticking apparatus FA, a coating apparatus configured in a compact manner may be provided inside the module type coating apparatus. For this purpose, an adhesive application device 1 ′ is provided for the impression cylinder 4, and in this figure, the transfer is to be provided between the blanket cylinder 13 and the impression cylinder 3 (4?). It is arranged in front of the gap. In the case of this figure, the transfer film is guided around the blanket cylinder 13 or in a substantially tangential direction with respect to the blanket cylinder, and is guided through the printing gap shown in the figure.

  Such an adhesive application device 1 ′ further includes a compact plate cylinder for carrying a printing plate for the adhesive, and an application device for supplying an adhesive comprising a chamber type doctor and an anilox roller. , May consist of In that case, an adhesive is first applied to the material to be printed in the same pressure cylinder 4 in a built-in manner, and then a film is applied immediately thereafter.

  The film stock roll 8 is disposed on the sheet supply side of the module type coating apparatus 2. The film stock roll 8 has a rotation drive unit 7 for supplying the coating film 2 to the coating apparatus 2 while continuously controlling the transfer film. The film supply unit may be provided with a direction changing roller or a tension roller in order to guide the transfer film 5 to the press roller 3 with a substantially constant tension. A film collecting roll 9 for the used film material is provided on the discharge side of the printing apparatus. It is always preferable to provide the film drive roll 9 with the rotation drive unit 7. It is also possible that the transfer film 5 is moved by the rotation drive unit 7 on the discharge side and is strongly stretched using a brake on the inflow side.

  With the apparatus as described above, the surface of the printing material can be partially sealed or bonded to provide an opaque surface layer. For this purpose, an apparatus for transferring a film is provided in a printing apparatus or a varnishing apparatus that is placed after the printing apparatus of a sheet-fed printing machine. In such a configuration, the freshly printed surface is further protected. For this purpose, a so-called scratch coating layer is particularly suitable. The scratch coating layer is used to cover information, but is coated so that the information coating can be removed when necessary. A well-known example of a scratch coating layer is a lottery and an information tool with educational or learning properties.

  The function of the coating can also be realized by a peelable coating in the form of a strip web. This only changes the way in which a matte or opaque coating is superimposed on the information.

  The basis of the application is the variability that the layer to be provided on the printed sheet has in terms of adhesion to the base layer and the internal structure of the layer to be provided.

  First, in cold film stamping, an adhesive is basically required. The adhesive transfers the image area providing layer from the carrier film to the base layer or the printed sheet by printing. The adhesive also results in the desired coating profile being retained to the finest details as the layer is transferred. On the other hand, relatively thick layers can be transferred as well, i.e. with sharp edges, as long as the internal consistency of these layers is less than the adhesion to the adhesive.

The following points are necessary for the method and product according to the present invention and the apparatus therefor.
-As usual, the adhesion of the layer to be transferred to the base layer must be stronger than the adhesion of the layer to be transferred to the transfer film.
-Furthermore, the adhesion of this layer to the base layer must be easily resolvable. And—when the transfer is carried out with a sharp edge from the carrier film to the base layer at this time, the consistency inside the layer to be transferred must be overcome only by fixing conditions. The reason is that cold film stamping does not provide a mechanical break edge for the element to be transferred of the film.

  A scratch coating layer is particularly suitable for the above requirements. The consistency of the scratch coating layer is such that the layer can be reliably peeled and transferred inside the layer. On the other hand, the scratch-coating layer has a relatively low inherent strength because of its consistency as a peelable layer, so that even a relatively thick layer can be transferred without problems. At this time, actions such as the possibility of removing the layer from the transfer film, peeling the covering layer with an accurate edge, and sufficiently adhering to the base layer of the printing material can be set sufficiently accurately in advance. It is. The central element here is the adhesive. Adhesives allow for precise edge peeling when transferring a layer from a carrier film to a base layer in a consistency and dry state.

  As an alternative to the scratch coating layer, a coating layer or an opaque layer made of a solid film material can be provided. In this case, in order to expose the covered information, the film is peeled off as a whole. At this time, if the operation for the end consumer is facilitated with respect to the film sticking, it is more difficult to solve the problem that the action of covering the information area so as to be removable or exposed is set in advance.

  In order to coat more reliably, the film must be very intensely colored or have a sufficient thickness. A relatively thin film may be used for intense coloration, but the film must have sufficient strength so that it can be removed from the base layer without problems. In this case as well, the consistency of the adhesive and the selection of the dry state are carried out so that the adhesion of the provided film can be adjusted accurately and can be adjusted sufficiently easily.

  In the case of a relatively thick film, the adhesion of the printing material to the base layer is much easier to solve. A relatively thick film may have a relatively strong adhesion due to greater durability when peeled from the base layer. Therefore, the consistency of the adhesive can be adjusted somewhat variably in this case. In the case of a relatively thick film, it is more difficult to perform separation with a sharp edge in the carrier film, and a relatively strong adhesion is required in the carrier film as well, so the adhesive is also used for that reason. It is necessary to adjust the consistency of the variably.

  Information to be coated can also be provided during the coating process. For this purpose, various printing methods can be applied. For example, information to be coated can be provided by ink jet printing followed by coating. Of course, the information can also be realized by offset printing, flexographic printing, gravure printing or other types of non-impact printing methods.

  The configuration of the machine provided for this is that the first modular film applicator is placed in front of the first printing device to transfer the ink or coating, and the second modular film applicator is installed in the ink. After the last printing device to be transferred, it is placed behind. Thereby, the first coating or bonding can be directly provided on the printing material, and the second partial coating can be provided on the printed image line portion.

  In order to apply the film on one side or both sides, it is possible to suitably combine coating units such as a modular varnishing device, a sheet return device, and a modular coating device. With the method and apparatus according to the present invention, it is possible to realize the pasting or the production of an information medium having the above-described functions in combination with the possibility of double-sided printing on a printing material.

  In this regard, the construction of the machine is shown in FIGS. These configurations enable the corresponding driving methods.

  2 and 3, a printing apparatus D is provided for processing with viscous printing ink. Instead of the printing device D, a modular varnishing device for processing fluid varnish or coating media can also be used selectively. The printing device D can also be used to provide a coating consisting of a fluid coating medium.

  FIG. 2 shows a first embodiment of this type of configuration. The printing machine shown in the figure is a coating device for two printing devices D or a module type varnishing device or a combination of a printing device and a module type varnishing device provided subsequent to the sheet feeding device AN. 1 and a modular coating apparatus 2 are placed behind. These coating apparatus and module type coating apparatus may be provided in the printing apparatus as a built-in module type film sticking apparatus FA. Subsequent to this, a return device W is provided, which reverses the printed sheet that is printed or coated on one side in the sheet printing machine, whereby the back side of the printed sheet becomes the front side, This surface can be followed by printing or coating. During normal operation, the return device W functions as a transport device T for transporting the printed sheet without turning it over. In this figure, a plurality of further printing apparatuses D are provided in some cases before the sheet return apparatus AU is reached after the return / conveyance apparatus W / T.

  Thus, with the printing press of this figure, each printed sheet is first printed on one side in one or two colors, or printed and coated, and then the surface is partially covered by the film layer to be coated. It is coated and subsequently turned over in some cases, followed by another multicolor printing. An example of such a printing application is a package or other information medium that has a functional area for information, but this functional area should not be directly visible. As described in the present invention, removably covering information content prevents information provided on a package or information medium from reaching undesired or undesired recipients, Or it is avoided that it can be changed unfavorably.

  FIG. 3 shows a second configuration. The printing machine shown in the figure has a sheet feeding device AN, followed by a module type film sticking device composed of one or two members, followed by a returning / conveying device W / T. The reversing / conveying device is used to turn over a printed sheet that is provided with a coating of film material on one side, so that subsequent printing or coating can be applied to the previous underside of the printed sheet. It can be carried out. At this time, one or a plurality of printing devices D are provided subsequent to the return / conveyance device W / T, and subsequently, the coating device 1 and the module type coating device 2 are provided. These coating apparatus and module type coating apparatus may also be provided in the printing apparatus as a built-in module type film sticking apparatus FA. Subsequent to this, a plurality of further printing devices D are provided in some cases before reaching the sheet discharge device AU.

  With such a printing machine, each printed sheet is first printed with one or two colors on the back side, or coated or bonded. The printed sheet is then turned over, multicolor printed, followed by partial coating of the surface with a covering layer, followed by reprinting or coating as the case may be. An example of such a printing application is a package or information medium that requires a decorative or protective layer for the media content on one side. This allows a product coated on both sides to be provided with packaging, decorative paper and a covered information area in order to supplement the image or text content in a simple manner. In this case, in some cases, a sensitive special coating is inserted for the first time later and can be reliably provided in this way.

  There is further manufacturing potential in such machines. That is, the printed sheet is provided with visual or tactile patterns and these patterns are film coated so that they can be recognized visually or tactilely, or alternatively the film itself is visually or tactilely A surface pattern is provided. Such a coating process is also performed on one or both sides of the unprinted or printed surface.

  The kind of removable coating as described above can also be realized by performing varnishing of the printed sheet in the varnishing device or the printing device D prior to film sticking in the module type film sticking device FA. . Such a process makes the surface of the printed sheet smoother, thereby improving the action of the adhesive. At the same time, the ease of peeling of the coating on the surface of the printed sheet is improved.

  In order to improve the barrier properties of the package, it should be possible to apply film on both sides as well in in-line and / or offline mode. The apparatus comprises a modular coating device for cold film stamping, the modular coating device being placed in front of and / or after the return device inside the sheet press. Such techniques are supplemented in a suitable manner.

It is a figure which shows the printing machine which has a film transfer apparatus. It is a figure which shows 1st embodiment of the sheet printing machine which has a coating apparatus. It is a figure which shows 2nd embodiment of the sheet printing machine which has a coating apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Application | coating apparatus 2 Coating apparatus 3 Press roller 4 Pressure drum 5 Transfer film / web-like film 6 Transfer gap 7 Roll drive part 8 Film stock roll 9 Film collection roll 10 Press tension material 11 Winding shaft 12 Plate cylinder 13 Dividing film roller 14 Feeding out Axis 15 Protection Device for Printing Device 16 Rubber Roller 17 Discharge Opening 18 Dancer Roller D Printing Device AN Paper Feed Device AU Paper Discharge Device FA Module Type Film Pasting Device W Return Device

Claims (20)

In a machine for processing a sheet, in particular a sheet rotary press, a method for transferring an image area providing layer or a functional layer to be coated or an overlapping functional layer from a carrier film to a printed sheet,
The sheet-fed rotary printing press is
At least one coating device (1) for providing a coating according to the image area or a flat coating with an adhesive on the printed sheet;
At least one coating device (2) for transferring a functional layer providing an image area or a functional layer to be coated from the carrier film to the printed sheet,
A transfer gap (6) is formed in the coating apparatus (2),
The carrier film passes through the transfer gap (6) under pressure with the printed sheet, with the surface along the press roller (3) and the coated surface being placed against the printed sheet. In the method in which the image area providing layer or the covering layer is transferred so as to adhere to the printed sheet from the carrier film in the region where the adhesive is provided,
At least one printed or coated first side of an individual printed sheet has the carrier film (on a partial surface to cover the image area in the transfer gap (6). 5) is provided with a film coating, and the adhesive force of the adhesive to the functional layer of the carrier film (5) exceeds the adhesive force between the functional layer and the carrier layer, and adhesion of the adhesive A method wherein the force allows partial removal of the functional layer or functional layer transferred to a base layer. The printed sheet is provided with a coating from the carrier film (5) on a partial surface in the printing gap (6),
The coating is a scratch coating layer, and the coating applied to the printed sheet with the adhesive has a larger adhesive force than the scratch coating layer provided on the carrier film (5), and the adhesive is The method according to claim 1, characterized in that at the same time the printed sheet is combined with the scratch coating layer to form a removable bond. The printed sheet is provided with a coating from the carrier film (5) on a partial surface in the printing gap (6),
The coating is a coated film layer;
The coating performed on the printed sheet with the adhesive has a greater adhesive force than the coating film layer provided on the carrier film (5), and the adhesive is simultaneously applied to the printed sheet on the printed sheet. 2. A method according to claim 1, characterized in that it forms a removable bond in combination with the covering film layer.   4. The method according to claim 1, wherein the printed sheets are printed and partially coated in the same printing press.   4. A method according to any one of claims 1 to 3, characterized in that the printed sheet is printed in a printing press and is partially coated in a coating device.   6. A method according to claim 5, characterized in that information is incorporated in the printing device or varnishing device or by means of an ink jet print head before the coating performed on a part of the surface.   6. The method according to claim 5, characterized in that, prior to the coating performed on a partial surface, information is integrated in a printing device by letterpress, intaglio or lithographic printing.   8. A device according to any one of claims 1 to 7, characterized in that the film coating on the entire surface transferred from the carrier film (5) is a visual functional layer.   The device according to any one of claims 1 to 7, characterized in that the film coating on the entire surface transferred from the carrier film (5) is a functional layer forming a structure. An apparatus for transferring an image line providing layer and / or a covering layer or an overlying layer from a transfer film (5) to a printed sheet according to claim 1, comprising:
At least one coating device (1) for providing a coating according to the image area or a flat coating with an adhesive on the printed sheet;
At least one coating device (2) for transferring the image area providing layer and / or the coating layer of the transfer film (5) to the printing sheet in the transfer gap (6),
In the transfer gap, the transfer film (5) is transported under pressure with the coated surface being in contact with the printed sheet, thereby overlapping or overlapping the image area providing layer or covering layer. In the apparatus in which the layer is transferred so as to adhere to the printed sheet from the transfer film (5) in a predetermined region among the plurality of regions provided with the adhesive of the printed sheet,
In a sheet-fed rotary printing press, a printing device and / or a varnishing device and / or a coating device (D) is formed between a sheet feeding device (AN) and a sheet discharging device (AU). A number of working units
The first of the working units is a printing device (D), which makes it possible to perform information-related printing on one side of the printed sheet, and the printing device (D). ), A module type film sticking device (FA) having at least one coating device (1) and one coating device (2) is provided in the print image area to cover the information content. A device characterized in that it is arranged for providing a partial coating.   Device according to claim 10, characterized in that the transfer film (5) carries a peelable coating consisting of a scratch coating.   Device according to claim 10, characterized in that the transfer film (5) carries a peelable coating consisting of an opaque covering film. The modular film sticking device (FA) has a coating device (1) for applying an adhesive to a printed sheet,
The adhesive binds to the printed sheet and adheres more strongly to the coating than the coating adheres to the transfer film (5);
12. An apparatus according to claim 10 or claim 11, wherein the adhesive combines with the scratch coating layer to form a peelable coating on the printed sheet. The modular film sticking device (FA) has a coating device (1) for applying an adhesive to a printed sheet,
The adhesive binds to the printed sheet and adheres more strongly to the coating than the coating adheres to the transfer film (5);
13. An apparatus according to claim 10 or claim 12, wherein the adhesive is combined with an opaque coating film to form a peelable partial coating on the printed sheet. The sheet-fed rotary printing press has the following configuration in the sheet transport direction between the sheet feeding device (AN) and the sheet discharging device (AU), that is, −n printings. Device (D),
The apparatus according to any one of claims 10 to 14, comprising: a module-type film sticking device (FA) and -n printing devices (D). The sheet-fed rotary printing press has the following configuration in the sheet transport direction between the sheet feeding device (AN) and the sheet discharging device (AU), that is, −n printings. Device or varnishing device (D),
-1 module type return / delivery device (W / T),
The apparatus according to any one of claims 10 to 14, comprising -n printing apparatuses (D) and -1 module type film sticking apparatuses (FA). The sheet-fed rotary printing machine has the following configuration in the sheet conveyance direction between a sheet feeding device (AN) and a sheet discharging device (AU), that is, −1 module Mold film sticking device (FA),
-N printing devices or varnishing devices (D),
-1 module type return / delivery device (W / T),
-N printing devices (D),
The apparatus according to claim 10, comprising: −n varnishing devices (D) and −1 module type film sticking device (FA). In a transfer film for performing the coating method according to claim 1 in the apparatus according to claim 10,
An image line providing layer is provided on the transfer film (5),
The image area providing layer is opaque and adheres more strongly to the adhesive provided on the printed sheet than to the transfer film (5),
A transfer film which can be peeled from the printed sheet.   The transfer film according to claim 18, wherein the transfer film is provided with an image line portion providing layer comprising a scratch coating.   The transfer film according to claim 18, wherein the transfer line providing layer comprises a non-glossy or opaque coating film.

Images