JP2005103879A - Recording method on sheet package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording method for obtaining a fine and distortion-free image by performing ink jet recording on the desired surface of a sheet package. <P>SOLUTION: In the recording method for recording a goods indication, e.g. a brand, number of sheets, a bar code, an article code, and the like, on the desired surface of a package (any one of six surfaces) using an ink jet recorder installed in a carrying line after a specified number of sheets are packaged automatically, ink jet recording is performed following to smoothing operation for removing a bulge, irregularities, creases, and the like, from the surface of the package for presenting the goods indication on the carrying line. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for ink-jet recording of a clear image on a desired surface of a package in which a sheet is packaged.

  When manufacturing and shipping sheet-fed paper (also called plain paper) such as sheet-fed printing paper, sheet-fed recording paper (PPC paper, ink-jet paper), a paper manufacturer first cuts from jumbo webs to the specified dimensions. After that, for example, 125 sheets, 250 sheets, 500 sheets, 1000 sheets, etc. are automatically packaged, and the brand, size, number of sheets, barcode on the desired surface (any one of the six surfaces) of the package The product code is displayed (hereinafter referred to as “product display”) before shipment.

  As a conventional method for displaying the product, there is a method in which a ream label on which a product is displayed by printing is prepared and affixed to a desired surface of the package. Further, a lot number may be given to the package. The lot number is generally printed by a variable stamp.

In such a conventional product display method, it is necessary to prepare a separate label for displaying the product, prepare a label to which the prepared ream label is attached, and additionally add a lot number to give a stamp. Installation and maintenance of these are required.
Furthermore, when the ream label is affixed (glued), when the wrapping paper is recovered and recycled into recycled pulp, the glued ream label is mixed as foreign matter and distributed as a lump, which produces recycled paper. There is a problem that it interferes with the recovery of used paper, such as adhering and fouling to the equipment (disaggregation equipment and papermaking equipment), and causing the paper breakage at the papermaking stage and reducing the quality of the recycled paper obtained.

In view of this, a display method using an ink jet recording apparatus has been proposed as a method for easily giving a product display without using a ream label, a labeler, and a stamp. (Patent Document 1)
The invention of Patent Document 1 may be used by incorporating an ink jet recording apparatus that prints data such as the date of manufacture, the expiration date, the unique symbol of the factory, and the lot number for management on the wrapping paper before packaging. Has been described.
However, the method of printing on the wrapping paper before packaging has problems such that the printing position is easily shifted and the printing position is easily stained in the packaging machine.
In addition, the method of displaying a product on a package after packaging a sheet with an ink jet recording apparatus is likely to swell on the printing surface, cause blurring, ripples, and the like, and the image is distorted even after ink jet recording (printing, etc.). There was a problem that a beautiful printed image could not be obtained.
JP-A-8-187916

  An object of the present invention is to provide a recording method in which a clear recorded image can be obtained by inkjet recording on a desired surface of a package after packaging of a sheet.

The present invention includes the following inventions.
(1) An ink jet recording apparatus is installed on the transport line of the package after packaging a predetermined number of sheets, and products such as brands, dimensions, number of sheets, barcodes, product codes, etc. on the desired surface of the package An inkjet recording method for performing display,
A flattening process is performed to remove bulges, bumps, ripples, etc. on the product line on the transport line, and ink jet recording is performed on the flattened surface. Recording method.
(2) The flattening process is performed by receiving the pressing force of the guide plate while the surface of the package that has been transported on the transport line is in contact with the guide plate provided on the transport line. (1) The recording method to the sheet package according to (1).
(3) The recording unit of the ink jet recording apparatus is disposed in an opening provided in the guide plate, and the ink jet recording is performed in the opening while the guide plate having the opening presses the display surface of the package. The recording method for a sheet package according to (2), wherein recording is performed.
(4) The sheet packaging according to (2), wherein the recording unit of the ink jet recording apparatus is disposed on a downstream side of the guide plate that performs the flattening process, and performs ink jet recording after the flattening process. How to record on the body.
(5) The flattening process is performed when the package that has been transported on the transport line reaches the position of a press plate that is installed so as to move from a direction perpendicular to the transport direction of the transport line. The sheet packaging described in (1), wherein the sheet is moved and brought into contact with and pressed against the product display surface of the package, is subjected to the pressing force, and is subjected to inkjet recording after the flattening process How to record on the body.
(6) The sheet package is a hexahedron in which caramel wrapping or underhold wrapping is performed, and a surface on which ink jet recording is performed is an end surface on which a folded portion is formed. The recording method to the sheet packaging body described in any one of (1).
(7) The method for recording on a sheet package according to any one of (1) to (6), wherein the sheet packaging method is automatic packaging by an automatic packaging machine.

According to the recording method of the present invention, since the product is directly displayed on the package after the sheet packaging by the ink jet recording apparatus, it is possible to accurately record at a desired position of the package, and the recorded characters and the like It does not get dirty due to contact with a member such as a packaging machine. Moreover, compared with the case where a label is affixed, there exists an effect that a label and a label sticking apparatus become unnecessary.
Further, according to the recording method of the present invention, when displaying a product on a desired surface of a package using an ink jet recording apparatus, a smoothing process is performed to remove swelling, unevenness, ripples, etc. on the surface on which the product is displayed. Therefore, a beautiful image without distortion can be obtained in ink jet recording.
In addition, in caramel-wrapped or under-hold-wrapped sheet packages, there are many cases in which products are displayed on the end face with a hexahedral folding part. The recording method of the invention can be carried out without problems.
Further, a sheet package automatically packaged by a flat automatic packaging machine tends to be inferior in tightness to the case of packaging by manual packaging. This recording method can be used.

In order to carry out the recording method for a sheet package of the present invention, first, from a wound paper state, sheet printing paper, sheet recording paper (PPC paper, inkjet paper), etc. are cut using a flat cutter or the like. After being cut into a predetermined size by the apparatus, for example, 125 sheets, 250 sheets, 500 sheets, 1000 sheets, etc. are used as a unit, and so-called caramel wrapping is performed using wrapping paper in a packaging process (automatic packaging machine, etc.). Or under-hold packaging to form a package.
The caramel wrapping is a wrapping method in which a folded portion 8 is formed on the end face of the package as shown in FIGS. In addition, underhold packaging is the same in that the folded portion 8 is formed on the end face of the package, but the folded portion is formed longer than the caramel packaging, and the tip of the folded portion is the same as that of the package of FIGS. This is a packaging method folded on the lower surface side. FIG. 4 shows a packaging form and a packaging method of underhold packaging, and FIG. 4 is a diagram in which the upper surface and the lower surface of the package are drawn opposite to FIGS. 1 and 2.

  The wrapping paper used for wrapping is one that has been moisture-proofed (eg, wax-processed, moisture-proof kraft paper with a film of a hydrophobic, film-forming resin such as polyethylene, polypropylene, or polyvinylidene chloride). However, because moisture-proof paper (made by Oji Paper Co., Ltd .: trade name “Green Wrap”) using a flat phyllosilicate compound such as mica can be recovered and reused. It can be particularly preferably used.

The packaging operation using the wrapping paper is performed in a packaging process, and an automatic packaging machine is generally used, but it may be packaged by hand packaging.
As wrapping paper, kraft paper having a basis weight of 50 to 120 g / m ² is generally used, and therefore has a certain degree of rigidity (paper stiffness). Therefore, the package surface after packaging swells inevitably, and there is a difficulty that it is easy to generate unevenness or undulations and is not flat. Even if ink jet recording is performed on such a surface, it is difficult to obtain a beautiful printed image.
In particular, caramel packaging or under-hold packaging is a packaging method in which a folded portion is formed on the end surface of the package. Therefore, a step due to the folding occurs on this end surface portion, and this causes swelling, unevenness, or ripples. The degree of equality is much larger than other aspects. Therefore, when product display is performed on this end face portion, there is a problem that it is difficult to obtain a beautiful printed image with the surface state as it is. However, for reasons such as visibility and workability, conventionally, product display by labeling has been mainly performed on this surface, and there is a great demand for recording on this surface even when replacing with ink jet recording.

In the recording method of the present invention, a product line is displayed by inkjet recording on a desired surface of the package in a conveyance line (conveyance conveyor) for conveying the packaged package to the next boxing process (box making process) or the like. However, in order to display a product on a desired surface of the package, it is a requirement that the surface on which the product is displayed is removed and the flattening process is performed by removing swelling, bumps, ripples, and the like.
As the flattening processing means, for example, a guide plate is installed on the transport line, and when the surface for displaying the product of the package that has been transferred on the transport line is in contact with the guide plate, it passes between the guide plates. The flattening process can be performed in response to the pressing force. Then, by performing inkjet recording while pressing the package with a guide plate, it is possible to surely flatten the paper surface to be printed. As a specific method, an opening is provided on the downstream side of the guide plate that presses the package, and a recording part (printing head or the like) of the ink jet recording apparatus is disposed in the opening, whereby ink jet recording is performed in the opening. It is a method to do. Further, it is possible to provide the recording portion of the ink jet recording apparatus immediately after the guide plate without providing the opening in the guide plate.

  As another embodiment for removing the swelling, bumpiness, ripples, etc. of the product display surface of the package, the package that has been transported on the transport line is moved to the front position of the inkjet recording apparatus in the direction of movement of the transport line. When the position of the pressing plate installed so as to move from the right angle direction is reached, the pressing plate moves and comes into contact with the product display surface, and the flattening process is performed by receiving the pressing force. It can also be configured.

  The pressing force by the guide plate or the pressing plate must be a pressure sufficient to enable the flattening process, but in order to perform a more efficient flattening process, water or steam is further applied to the guide plate or the pressing plate. Spraying and heating functions (so-called ironing functions) can also be provided.

FIG. 1 and FIG. 2 show an example in the case of displaying a product on the end face of the package with the folded portion. It is also possible to display the product on a surface other than the end face, and when displaying the product on the side surface without the folding part, the packaging body is rotated by 90 degrees in the front position where it contacts the guide plate or the pressing plate, A flattening process can be performed by bringing the side surface into contact with the guide plate or the pressing plate.
In addition, as a method of rotating the package that is transported on the conveyance line at the position before the contact with the guide plate or the pressing plate, the conveyance direction of the package coming out from the automatic packaging machine is changed to the direction orthogonal from the beginning. Or by providing a turntable that rotates 90 ° in the transfer line.
Furthermore, in the case where product display is performed on the upper surface without the folding portion, it is possible to use a method in which a pressing plate for the upper surface (a structure for pressing from above) is provided to perform the pressing process. In this case, ink jet recording can be performed by providing the ink jet recording apparatus on the upper side. In addition, the package body is vertically rotated 90 degrees at the previous position where it comes into contact with the guide plate or the pressing plate (rising so that the plane is in a vertical state), and the plane is brought into contact with the guide plate or the pressing plate. Further, it can be flattened.

  A product display is recorded (printed or the like) by an ink jet recording apparatus on the surface from which bulges, bumps, ripples, and the like are removed, in a pressed state or after the pressing. A well-known thing can be used for an inkjet recording device.

  Example 1

FIG. 1 is an explanatory view showing a conveying line for carrying out the present invention. 500 sheets of sheet paper cut and stacked with a cutter or a guillotine cutter (not shown) are sent to an automatic packaging machine in the packaging process, and moisture-proof wrapping paper (manufactured by Oji Paper Co., Ltd .: trade name “Green Wrap Basis Weight” 64 g / m ² ") and caramel wrapped. The packaged body (4) is transported on a conveyor which is a transport line and sent to the boxing process (box making process), but reaches the position of the guide plate (5) provided on the transport line and is folded. The end surface (6) having the portion comes into contact with the guide plate (5), and the end surface (6) receives a pressing force of the guide plate (5) and is flattened. In this case, the guide plate (5) itself does not move, but the package is subjected to a pressing force by passing through a narrow space between the guide plates (5) installed on both sides of the conveyor (2), and the flattening process is performed. Done. Note that the guide plate (5) can be arranged at a plurality of locations instead of a single location, and can be pressed together with the adjustment of the travel position.

On the end face of the package that has been flattened by the guide plate, product display printing is performed by the ink jet recording device (3) in the opening (9) provided by cutting out the downstream side of the guide plate. Since the printing surface (end surface) of the package is pressed by the guide plates at the top and bottom, it is flat as a whole, and a clear finished image without distortion can be obtained as a printed image. FIG. 3 shows the shape of the guide plate provided with the opening (9).
Example 2

FIG. 2 is an explanatory diagram showing a conveyance line for carrying out the present invention, showing an example different from FIG. 500 sheets of sheet paper cut and stacked with a cutter or a guillotine cutter (not shown) are sent to an automatic packaging machine in the packaging process, and are moisture-proof wrapping paper (Oji Paper Co., Ltd. product name: “Green Wrap” 64 g / m ² )), and automatically packaged with caramel. The packaged body (4) is transported on a conveyor which is a conveyance line and sent to the boxing process (box making process), but when it reaches the position of the pressing plate (7) provided in the middle thereof. The conveyor stops moving. A pressing plate (7) installed so as to move in a direction perpendicular to the moving direction of the transport line comes into contact with the end surface (6) having the folded portion, and a flattening process is performed by receiving the pressing force. The pressing plate is moved by an air cylinder (not shown) attached to the back side of the pressing plate.

  After the flattening process, the conveyor (2) resumes moving, and when the package (4) reaches the position where the inkjet recording device (3) is installed, the end surface (6) is placed on the end surface (6) by the inkjet recording device (3). The product display is printed, and a beautiful finished image without distortion is obtained as the printed image.

  The present invention relates to a case where inkjet recording is performed on a desired surface of a package in which a sheet is packaged in a conveyance line after flat packaging such as sheet-fed printing paper and sheet-fed recording paper (PPC paper, ink-jet paper). It can be used effectively.

It is explanatory drawing which shows the conveyance line which implements this invention. (Example 1) It is explanatory drawing which shows the conveyance line which implements this invention. (Example 2) It is a figure which shows the shape of the guide plate 5 which has an opening part in Example 1. FIG. It is a figure which shows the package body of under hold packaging.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyance line 2 Conveyor 3 Inkjet recording device 4 Packing body 5 Guide plate 6 Side surface with a folding part 7 Pressing plate 8 Folding part 9 Opening part of a guide plate

Claims (7)

An ink jet recording apparatus is installed on the transport line of the package after packaging a predetermined number of sheets, and products such as brands, dimensions, number of sheets, barcodes, and product codes are displayed on the desired surface of the package. An ink jet recording method comprising:
A flattening process is performed to remove bulges, bumps, ripples, etc. on the product line on the transport line, and ink jet recording is performed on the flattened surface. Recording method.   The flattening process is performed by receiving a pressing force of the guide plate, with a surface for displaying a product of the package that has been transported on the transport line being in contact with a guide plate provided on the transport line. The method for recording on a sheet package according to claim 1.   The recording unit of the ink jet recording apparatus is disposed in an opening provided in the guide plate, and performs ink jet recording in the opening while the guide plate having the opening presses the display surface of the package. The method for recording on a sheet package according to claim 2.   The recording unit of the ink jet recording apparatus is disposed on a downstream side of the guide plate that performs the flattening process, and performs ink jet recording after the flattening process. Recording method.   In the flattening process, when the package that has been transported on the transport line reaches the position of the press plate installed so as to move from the direction perpendicular to the transport direction of the transport line, the press plate moves. 2. The sheet package according to claim 1, wherein the sheet is pressed in contact with the product display surface of the package, and is subjected to the pressing force, and is subjected to inkjet recording after the flattening process. Recording method.   6. The sheet-wrapping body is a hexahedron that is caramel-wrapped or under-hold-wrapped, and a surface on which ink-jet recording is performed is an end surface on which a folded portion is formed. The recording method to the sheet packaging body described in the item. The method for recording on a sheet package according to any one of claims 1 to 6, wherein the sheet packaging method is automatic packaging by an automatic packaging machine.

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