JP2010000786A - Lamination method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lamination method which prevents generation of a wrinkle, tear or the like when laminating a long shape or sheet shape paper between films. <P>SOLUTION: The lamination method is characterized as follows. At least a pair of heat rollers 2a, 2b to be moved and at least a pair of drive nip rollers 3a, 3b are respectively arranged on the upstream and downstream along a paper feed path. A long shape paper S1 continuously fed along the feed path in which a film G is continuously fed to at least one side, and is arranged together, is made to pass under pressurization/heating between the heat rollers to be moved. The long shape paper S1 which has passed through between the heat rollers to be moved and on which the film G has laminated at least on one side is pulled and ejected to the next following process while carrying out the rotary drive of the heat rollers to be moved with the drive nip rollers. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention protects and reinforces the surface and appearance of a magazine or book cover, prints such as posters and brochures, and cards such as business cards and postcards, and has durability. In addition, the present invention relates to a laminating method useful for improving aesthetics by imparting gloss to the surfaces thereof. In addition, the present invention laminates a pseudo adhesive film or the like on each facing surface of a facing leaf piece in the production of a postcard or other information communication body in which the leaf pieces folded or separated and overlaid in a plurality of layers are peelably laminated. The present invention relates to a useful laminating method.

  Conventionally, as a means of imparting gloss to the surface of a printed material and improving aesthetics and durability, a laminating method of laminating the surface of the printed material with a film has been widespread, and methods such as dry laminating and thermal laminating have been adopted as the laminating method. ing. These are collectively referred to as print lamination in the industry. For example, sheet-like paper that has been printed by offset printing or the like is continuously fed out one by one, and the surface of each paper is sequentially laminated with a film that is continuously fed out. Is.

  Recently, in addition to the method of printing sheet-like paper by offset printing or the like, a method of high-speed printing of long paper such as rotary printing or form printing has been actively used. There is a need to effectively laminate with film.

  By the way, the present inventors have disclosed a method of continuously laminating a long sheet of continuous form paper with a pseudo-adhesive film in “Information Communication Body Manufacturing Method and Manufacturing Apparatus” of Japanese Patent Application Laid-Open No. 2000-168273. Is disclosed. In the laminating step in this manufacturing method, the pseudo adhesive film 12a first fed out from the upper roll A is laminated on the surface of the paper S while being aligned with the long paper S1 by the upstream heat rollers 11a and 11b, and subsequently. Then, the pseudo adhesive film 12b fed out from the lower roll B is laminated on the back surface of the paper S while being aligned with the long paper S by the downstream heat rollers 15a and 15b, and further waiting on the downstream side. A total of three pairs of heat rollers are arranged so as to ensure the adhesion between the pseudo adhesive films 12a, 12b and the front and back surfaces of the paper S with the heat rollers 16a, 16b. It is possible to manufacture information communication bodies including laminating paper sheets.

JP 2000-168273 A

  With a pair of heat rollers in a pressurized state, the nip pressure is not applied completely uniformly in the width direction unless some measure is taken. In the laminating process, it is known that when the paper passes through the heat roller, the traveling direction is slightly deviated due to the non-uniform nip pressure. Such deviations in the traveling direction of the paper are gradually accumulated as the paper travels, so that the paper is finally protruded from the heat roller together with the film laminated thereon, or the paper is laminated to it. The paper and the film laminated to it cause significant wrinkles and tears. The problem is particularly noticeable when long paper is used, but also when using sheet-like paper, these papers are connected to each other in a long shape by continuous laminating of films. May cause problems. That is, at present, long or sheet-like paper is accurately beautiful with a film and cannot be laminated continuously.

  The present invention solves various problems such as deviations in the direction of travel, wrinkles, tears, etc. associated with laminating a film on a long or sheet-like sheet, and the long or sheet-like sheet and film. It is an object of the present invention to provide a laminating method capable of laminating the paper with a film while continuously and accurately aligning the sheets.

  In order to achieve the above object, the laminating method according to the present invention includes at least a pair of driven heat rollers and at least a pair of driving nip rollers arranged upstream and downstream along the paper conveyance path, and continuously along the conveyance path. A continuous sheet of paper is continuously supplied to and aligned with at least one side of the sheet, and is passed between the driven heat rollers under pressure and heating. The long sheet having a film laminated on at least one side passing between the driven heat rollers is rotated, and the driven heat roller is driven to rotate by the driving nip roller to the subsequent next step. It is characterized by being pulled and discharged.

  If necessary, the long paper used in the laminating method may be provided with marginal holes on at least one side edge, preferably both side edges. In this case, the long paper is provided with a marginal hole. It can be configured to be conveyed to the laminating step in a state where the holes are accurately aligned while being engaged with pins of a pin feed mechanism such as a pin tractor or a sprocket.

  In order to achieve the above object, another laminating method according to the present invention includes at least a pair of driven heat rollers and at least a pair of driving nip rollers arranged upstream and downstream along the sheet conveyance path, respectively. The sheet-fed sheets that are continuously fed along the sheet are continuously fed and aligned between at least one side of the sheet-like sheets while being pressed and heated between the driven heat rollers, and the sheets are fed. The driven heat roller is rotated by the passage of the sheet, and the sheet-like sheet that is passed between the driven heat rollers and laminated with a film on at least one side and connected in a long state thereby is driven. The driven heat roller is driven to rotate by a nip roller while being driven to the next process and discharged. It is set to.

  According to the laminating process of the above configuration, the width of the driven heat roller is obtained by forcibly pulling the long or sheet-like paper having the film laminated on at least one side by the driving nip roller through the driven heat roller. Deviation or meandering in the traveling direction of the sheet due to the non-uniform nip pressure in the direction is suppressed, and a firm directionality can be given to the traveling direction of the sheet.

  In the laminating step, as described above, when the long paper is conveyed in a state of being accurately aligned while engaging the marginal hole with the pin of the pin feed mechanism, the long paper is Due to the synergistic effect of accurate positioning by the pin feed mechanism before entering the driven heat roller and forced traction by the drive nip roller after the driven heat roller, non-uniform nip pressure is generated in the width direction of the driven heat roller. Even if it occurs, it can be transported with a more stable direction without shifting or meandering in the advancing direction. Lamination is performed with high accuracy on the required adhesion surface.

  As described above, according to the laminating method according to the present invention, when laminating a film on a long or sheet-like paper, deviation in the traveling direction of the paper or meandering does not occur. The film is laminated in a strictly positioned state without tearing or tearing, and the downstream processes after the laminating process will proceed smoothly without producing defective products, contributing to improved productivity. A smooth and beautiful laminating effect can be obtained.

FIG. 1 is a schematic view of a main part for explaining the laminating method for long paper according to the present invention. FIG. 2 is a main part schematic diagram for explaining another embodiment of the laminating method for long paper according to the present invention. FIG. 3 is a front view of a long sheet that can be used in the present invention. FIG. 4 is a cross-sectional view of a film that can be used in the present invention. FIG. 5 is a schematic view of a main part for explaining the laminating method for sheet-like paper according to the present invention.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
[When long paper is used]
As the long sheet S1 in this embodiment, as shown in FIG. 3, a paper provided with marginal holes 4 on both outer sides is used as an example. As the film G, as shown in FIG. 4, for example, a film obtained by forming a known heat-sensitive adhesive layer 52 on one surface of a base material 51 such as polypropylene or polyethylene terephthalate is used as an example.

  In addition, there is no special restriction | limiting in the material, layer structure, etc. of the film used for this invention, According to the objective of lamination, etc., it selects suitably. For example, in the case of manufacturing a multi-layer postcard or other information communication body in which the opposing leaf pieces of the paper are peeled and pseudo-bonded so as to be peeled and deployed after receipt, the both leaf pieces are laminated on each opposing surface of the opposing leaf pieces. As the film to be formed, for example, a film formed by forming a heat-sensitive adhesive layer 52 on one surface of the base material 51 and forming a known pseudo-adhesive layer on the other surface may be used. When it is necessary to adhere the leaf pieces in a non-peelable manner, for example, a heat-sensitive adhesive layer 52 is provided on one surface of the base 51 as a film laminated on one or both leaf pieces on each opposing surface of the opposing leaf pieces. A complete adhesive film that is formed and formed with a highly adhesive fully adhesive layer on the other surface may be used.

  In FIG. 1, the long sheet S <b> 1 is supplied from the lower left side of the figure, and is conveyed downstream while the marginal hole 4 is aligned with each pin of the pin tractor 1. A pair of driven heat rollers 2a, 2b are disposed as laminating rollers downstream of the pin tractor 1, and the long sheet S1 is passed between them. When the long sheet S1 passes between the driven heat rollers 2a and 2b, the film G fed from the roll waiting upward is fed into the driven heat roller 2a while being aligned with the surface of the long sheet S1. At the same time, the film G fed out from the roll waiting below is sent to the driven heat roller 2b while being aligned with the back surface of the long sheet S1.

  Thus, the film G fed from the top and bottom passes while being heated and pressed between the driven heat rollers 2a and 2b while being aligned with the front and back surfaces of the long sheet S1, so that the film G has its thermal sensitivity. It is bonded and laminated to the front and back surfaces of the long sheet S1 through the adhesive layer 52, respectively.

  As described above, when the surface of the long sheet S1 is laminated by the upper driven heat roller 2a, the lower driven heat roller 2b functions as a driven heat roller for receiving the driven heat roller 2a. When the back surface of the long sheet S1 is laminated by the lower driven heat roller 2b, the upper driven heat roller 2a serves as a receiving driven heat roller for the driven heat roller 2b.

  As described above, the long sheet S1 having the film G laminated on the front and back surfaces passes while being pulled between the pair of driving nip rollers 3a and 3b disposed downstream of the driven heat rollers 2a and 2b. The driving nip rollers 3a and 3b drive the long sheet S1 passing between them so that the sheet conveying speed is equal to or slightly faster than that of the upstream pin tractor 1. On the other hand, since the driven heat rollers 2a and 2b are pressed against each other in a free state, the long paper S1 passing between them is not driven by itself, but instead of the long paper S1. It is driven by the passage and rotates without obstructing the accurate progress of the long sheet S1 passing therethrough. That is, the long sheet S1 having the film G laminated on the front and back surfaces is sandwiched between the driving nip rollers 3a and 3b and pulled in the conveying direction, whereby the driven heat rollers 2a and 2b are driven to rotate and the film. G is fed from each roll and aligned with the front and back surfaces of the long sheet S1. Therefore, since the conveyance direction and speed of the long sheet S1 are stably secured by the alignment mechanism of the pin tractor 1 and the traction force of the drive nip rollers 3a and 3b, the film G is laminated by the driven heat rollers 2a and 2b. At this time, the movement of the long sheet S1 is not affected.

  Thus, the long sheet S1 in which the film G is laminated on the front and back surfaces is conveyed to the downstream process while being pulled by the drive nip rollers 3a and 3b, and each process such as folding, cutting, and pressure bonding is performed as necessary. To be served.

  Instead of the pin tractor, for example, it is possible to use a sprocket or the like, but such a pin feed mechanism as an auxiliary member for alignment is not necessarily required in the present invention, For example, a simple configuration in which a simple support roller or the like is disposed may be used.

  Further, when laminating the film G on the front and back surfaces of the long sheet S1 as described above, the pair of driven heat rollers 2a and 2b as described above, and one of them is also used as the other receiving driven heat roller. However, instead of laminating the front and back surfaces of the long sheet S1 at once, as shown in FIG. 2, two pairs of driven heat rollers 21a for laminating the front and back surfaces of the long sheet S1 as described above. , 21b and 22a, 22b can be individually arranged and laminated in stages on the front and back surfaces of the long sheet S1.

  Further, instead of laminating the film G on the front and back surfaces of the long paper S1 simultaneously or stepwise as described above, the film G is laminated only on one side of the front and back surfaces of the long paper S1. In this case, when laminating the long sheet S1 on the front surface, one pair of driven heat rollers 21a and 21b shown in FIG. 2 is arranged, and when laminating the long sheet S1 on the back surface, The other pair of driven heat rollers 22a and 22b shown in FIG.

  Further, the drive nip rollers 3a and 3b do not have to press the entire long sheet S1 to be conveyed in the width direction, and may be configured to hold the central part or a part thereof which is offset, for example.

  Further, for example, a long shape in which a film G is laminated between the driven heat rollers 2a and 2b and the driving nip rollers 3a and 3b or between the driven heat rollers 2a and 2b and the driven heat rollers 22a and 22b. A slitter for cutting the paper S1 at both outer sides including the marginal holes 4 or a folding sewing blade for forming a fold line in the length direction of the long paper S1 may be interposed. .

[When using sheet-fed paper]
As shown in FIG. 5, in the drawing, the sheet-like sheets S2 stacked on the lower left side are sucked up one by one by the suction pad 60 and sent out at equal intervals onto the conveyance table 62 and by the feed rollers 61a and 61b. In the laminating process as described above, the pseudo-adhesive film G that is continuously fed out downstream through the pair of driven heat rollers 2a and 2b in the laminating process as described above is continuously conveyed downstream at a regular interval. The sheet G passes through the heated heat rollers 2a and 2b while being aligned with the front and back surfaces of the sheet-like sheet S2, while being heated and pressurized, so that the film G passes through the heat-sensitive adhesive layer 52 and the front and back sides of the sheet-like sheet S2. The sheet-like sheets S2 that are continuously fed are laminated and connected to each other in a long state.

  The action of the driven heat rollers 2a and 2b and the driving nip rollers 3a and 3b in the case where the sheet-like paper S2 continuously supplied for each sheet is laminated as described above is a length that is continuously supplied. This is basically the same as the case described above in which the scale paper S1 is laminated. Even when the sheet S2 is used, the laminating method shown in FIG. 2 may be used. For example, a film G is laminated between the driven heat rollers 2a and 2b and the driving nip rollers 3a and 3b. In addition, a slitter for cutting the sheet-like sheet S2 connected in the long state at the left and right sides, a folding sewing blade for forming a fold line in the length direction on the sheet-like sheet S2, and the like are interposed. It can be done.

S1 Long sheet S2 Sheet-fed sheet G Film 1 Pin tractor 2a, 2b, 21a, 21b, 22a, 22b Driven heat roller 3a, 3b Drive nip roller 4 Marginal hole 51 Substrate 52 Heat-sensitive adhesive layer 60 Adsorption pad 61a, 61b Paper feed roller 62 Carriage

Claims (3)

  At least a pair of driven heat rollers and at least a pair of driving nip rollers are arranged upstream and downstream along the paper conveyance path, respectively, and a long sheet continuously supplied along the conveyance path is provided with a film on at least one side thereof. While continuously supplying and aligning, passing under pressure and heating between the driven heat rollers and rotating the driven heat roller by passing them, passing between the driven heat rollers, A laminating method characterized in that the long sheet having a film laminated on at least one side is pulled and discharged by the driving nip roller to the subsequent next process while rotating the driven heat roller. .   Use a long sheet having a marginal hole on at least one side end, and the long sheet is conveyed to the driven heat roller by engaging the marginal hole with a pin of a pin feed mechanism. The laminating method according to claim 1.   At least a pair of driven heat rollers and at least a pair of driving nip rollers are arranged upstream and downstream along the paper conveyance path, respectively, and at least one side of the sheet-like paper that is continuously supplied along the conveyance path The film is continuously fed and aligned while passing between the driven heat rollers under pressure and heating, and the driven heat roller is rotationally driven by the passage of the films, and passes between the driven heat rollers. Then, at least one side of the film is laminated and the sheet-like paper connected in a long state is pulled by the drive nip roller to the subsequent next process while rotating the driven heat roller. A laminating method characterized in that it is discharged.

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