JP4952110B2 - PTP packaging material with latent image pattern - Google Patents

Description

  The present invention has an anti-counterfeiting function for an aluminum lid (eg, printing / aluminum foil / lacquer) of a PTP (Press Through Pack) packaging material (hereinafter referred to as a packaging material) generally known as a tablet packaging form. The present invention relates to a PTP packaging material with a latent image pattern.

  In recent years, there has been a strong demand for imparting a forgery prevention function to printed materials such as securities, or printed packaging materials mainly composed of paperboard and plastic films. In the case of such a printed matter, as one of the measures for preventing forgery, for example, there is a method in which an image can be observed by using a line sheet provided with a large number of fine parallel line-shaped line patterns on a transparent film. .

  This printed matter is a printed matter that applies “line moiré” in which a latent image pattern emerges when a line sheet is superimposed on a printed matter. However, since the printed matter has a relatively simple pattern, the effect as a countermeasure against forgery is low. Therefore, a method for improving such a problem has been proposed (for example, see Patent Document 1).

Prior art documents are shown below.
JP 2001-213042 A

  However, each method is basically a known printing method using offset printing, gravure printing, etc., and therefore it is not perfect as a forgery prevention measure. In addition, the conventional PTP (Press Through Pack) packaging material based on aluminum (eg, printing / aluminum foil / lacquer) has a latent image pattern such as hidden images and characters that can be used as an anti-counterfeit function. There was no function to form or read.

  An object of the present invention is to provide a latent image pattern-attached PTP packaging material having an anti-counterfeit function that is easy to determine authenticity and inexpensive. It is.

The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 of the present invention provides at least a fine embossing process on a cover material (1) made of an aluminum foil (1b). A line pattern (3) in which parallel lines (7) having the same line pitch with a ratio of parallel lines (parallel straight lines) of the line part (7a) and the non-line part (7b) formed by the same line pitch (1: 1) are arranged. ) is formed, the latent image with the line pattern (3) the line pattern (3) a line screen phase by half a pitch relative to the staggered form the latent image line pattern in the area (3a) A flat plate (10) that is a PTP packaging material with a pattern, wherein the line pattern (3) and the latent image line pattern (3a) are used to press the lid (1) to the bottom material (2) in the PTP packaging machine. a latent image pattern with PTP packaging material, characterized in that in which in formed.

  The invention according to claim 2 of the present invention is the PTP packaging material with a latent image pattern according to claim 1, wherein the same line ratio and the same line ratio as the line pattern (3) on the line pattern (3). When the visualized line sheet (B) in which the pitch line pattern (5) is formed on the transparent substrate (6) is overlapped in parallel, the line pattern (3) region A latent image pattern-attached PTP packaging material characterized in that the latent image line pattern (3a) formed therein is visualized.

  The invention according to claim 3 of the present invention is the PTP packaging material with a latent image pattern according to claim 1 or 2, wherein the line pattern (3) region extends over substantially the entire region on the lid (1). Alternatively, the latent image pattern-attached PTP packaging material is formed by being divided into one or several places.

  The invention according to claim 4 of the present invention is the PTP packaging material with latent image pattern according to any one of claims 1 to 3, wherein the latent image line pattern (3a) is the line pattern (3). A PTP packaging material with a latent image pattern, wherein a plurality of PTP packaging materials are formed at different locations in a region.

  The invention according to claim 5 of the present invention is the PTP packaging material with latent image pattern according to any one of claims 1 to 4, wherein the shape of the line pattern (3) is linear, wavy, or curved. Or a PTP wrapping material with a latent image pattern, characterized in that it is a filament by a combination thereof.

  The invention according to claim 6 of the present invention is the PTP packaging material with a latent image pattern according to any one of claims 1 to 4, wherein the shape of the line pattern (3) is a square dot shape, a round dot shape, A latent image pattern-attached PTP wrapping material characterized by being in the form of halftone dots, lattice dots, or a combination thereof.

  The PTP packaging material with a latent image pattern according to the present invention has a ratio of parallel lines (parallel straight lines) of 1: 1 to a linear portion and a non-linear portion formed by fine embossing on at least a lid made of aluminum foil. A latent image line formed by forming a line pattern in which lines with the same line pitch are arranged in parallel, and shifting the line phase by a half pitch with respect to the line pattern within the line pattern area. By providing the pattern, it is possible to provide a PTP packaging material with a latent image pattern that is easy to authenticate and inexpensive and has an anti-counterfeit function.

  Embodiments of the present invention will be described in detail with reference to FIGS.

FIG. 1 is a side sectional view showing an embodiment of a PTP packaging material with a latent image pattern (A) according to the present invention, and FIG. 2 shows an embodiment of the PTP packaging material with a latent image pattern (A) according to the present invention. FIG. 3 is a K-part enlarged plan view of the latent image formed by the line pattern (3) in the PTP packaging material (A) with a latent image pattern according to the present invention, and FIG. FIG. 5 is a plan view of a visualized line sheet (B) that is superimposed on the latent image pattern-attached PTP wrapping material (A) and visualized, and FIG. 5 is a visualized line shown in FIG. FIG. 6 is an L partial enlarged plan view of the visualization line pattern ( 5 ) on the sheet , and FIG. 6 shows the visualization line sheet (B) on the PTP packaging material (A) with a latent image pattern according to the present invention. FIG. 7 is a plan view of a visualized image (C) superimposed and visualized, and FIG. 7 shows a PTP package with a latent image pattern according to the present invention. FIG. 8 is a side sectional view showing one embodiment of the manufacturing method (A), and FIG. 8 is a side sectional view showing another embodiment of the manufacturing method of the PTP packaging material with a latent image pattern (A) according to the present invention. .

  A PTP wrapping material (A) with a latent image pattern according to one embodiment of the present invention is formed by fine embossing on at least a lid (1) made of an aluminum foil (1b) as shown in FIG. A line pattern (3) in which lines (7) having the same line pitch of 1: 1 (parallel line) ratio of the line part (7a) and the non-line part (7b) are 1: 1 is arranged in parallel. The latent image line pattern (3a) formed by shifting the line phase by a half pitch with respect to the line pattern (3) is formed in the line pattern (3) region. .

  The line pattern (3) shown in FIG. 2 includes a latent image line pattern (3a) (for example, a hexagonal pattern portion as shown), and the latent image line pattern (3) in the line pattern (3) ( 3a), as shown in the K partial enlarged view of FIG. 3, the pitch phase of each parallel straight line (line) of the inner area and the outer area of the latent image line pattern (3a) Is formed by shifting by a half pitch along the contour line of the image line pattern (3a), and in the figure, along the contour of the hexagonal figure that is the latent image line pattern (3a), A phase shift portion (3b) is formed.

  That is, the ratio of parallel lines (parallel straight lines) of the line part (7a) and the non-line part (7b) formed by fine embossing on the cover material (1) made of the aluminum foil (1b) is 1: 1. A line pattern (3) in which parallel lines (7) with a 10,000 line pitch are arranged in parallel is formed, and the line phase is half of the line pattern (3) in the line pattern (3) region. In this configuration, the latent image line pattern (3a) formed by shifting the pitch is provided.

  The parallel straight lines (line) (7) constituting the line pattern (3) have a very thin fine line width formed by fine embossing. Further, the line (7) of the latent image line pattern (3a) formed in the inner area of the line pattern (3) is shifted in pitch phase from the line (7) in the outer area. Furthermore, since the line (7) is fine, the latent image line pattern (3a) is visually (apparently) not visually observed as an image, and the lid ( 1) Only a normal print image (1a) and a line pattern (3) on which images such as letters and pictures are printed on both ends are observed. In addition, since the line width of the line pattern (3) is composed of a very fine line width or the like, it does not affect the print design of the normal print image (1a). The normal print image (1a) may be used as a sketch.

  Next, as shown in FIG. 4, a visualized image in which a visualization line pattern (5) having the same line ratio and the same line pitch as the line pattern (3) is formed on a transparent substrate (6). A chemical wire sheet (B) is produced. The visualized line sheet (B) is a known printing method such as offset printing, gravure printing, letterpress printing, silk screen printing, etc. on the transparent substrate (6), as shown in the L partial enlarged view of FIG. Alternatively, the line (7) with the same line pitch of 1: 1 (parallel straight line) ratio of the line part (7a) and the non-line part (7b) formed by foil stamping, coating, ink-jet method, etc. It consists of a parallel arrangement.

  The transparent substrate (6) is made of, for example, polyethylene resin (PE), polypropylene resin (PP), polyethylene terephthalate resin (PET), vinyl chloride resin (PVC), polyimide resin (PI), polystyrene resin (PS), etc. A transparent plastic film or sheet made of a thermoplastic resin, further glass or the like is used.

When the visualized line sheet (B) thus obtained is superposed in parallel on the line pattern (3) on the lid (1), it is formed in the area of the line pattern (3). Since the lines in the inner area and the outer area of the latent image line pattern (3a) are shifted by a half pitch, the lines in the visualization line pattern (5) and the lid (1 ) Each of the lines that are shifted by a half pitch between the inner area and the outer area of the latent image line pattern (3a) of the line pattern (3) formed on the line pattern (3) overlap each other (line pattern (3 ) And a portion that does not overlap (a line of the line pattern (3) is not hidden) occurs.

  As a result, for example, the line of the line pattern (3) that does not overlap the line of the visualization line pattern (5) becomes the latent image line pattern (3a) (for example, hexagonal as shown in the figure). If the line constituting the line pattern (3) in the (pattern part) region is between each line [opaque line part (7a)] of the line pattern for visualization (5) The latent image line pattern (3a) is visualized through the transparent portion [transparent non-linear portion (7b)] and visualized as a positive image (C). .

  On the other hand, for example, the line of the line pattern (3) that does not overlap the line of the visualization line pattern (5) is the latent image line pattern (3a) (for example, a hexagonal pattern as shown in the figure). Part) If the line constituting the line pattern (3) outside the region is a line between the lines [opaque line part (7a)] of the line pattern for visualization (5) The latent image line pattern (3a) is visualized through the transparent portion [transparent non-linear portion (7b)] to be visualized, and is observed as a negative image (C).

  In the present invention, the entire shape of the line pattern (3) region illustrated in FIGS. 2 and 6 is a linear strip shape region arranged in the horizontally long direction. However, in the present invention, the present invention is not limited to this. The region may be a straight line shape region arranged in the direction, for example, a straight line shape, a wavy line shape, a curved line shape, or a combination of these, or a square dot shape, a round dot shape, a halftone dot shape, a lattice. Each may be a finely divided shape region such as a dot shape or a dot shape formed by a combination thereof.

  Further, the line pattern (3) region may be formed over substantially the entire region on the lid member (1) or divided into one or several places. Further, a plurality of the latent image line patterns (3a) may be formed at different locations in the line pattern (3) region.

  The line pitches of the line (7) of the line pattern (3) and the line (7) of the line pattern for visualization (5) of the visualized line sheet (B) are 20 to 20, respectively. It is preferable to set it within the range of 2000 μm, preferably 20 to 1000 μm. When the line pitch is less than 20 μm, the line part (7a) and the non-line part (1/2) with respect to the pitch Since each line width of 7b) is an extremely thin line width of less than 10 μm, the design of the latent image line pattern (3a) is too fine, and the visualized line sheet (B) is superposed and observed. However, reproducibility is poor and visualization becomes weak.

  On the other hand, if the pitch of the line (7) is larger than 2000 μm, the line widths of the line part (7a) and the non-line part (7b) are extremely thick line widths of more than 1000 μm, respectively. The design of 3a) is also rough, and it is difficult to see when the visualized line sheet (B) is superimposed and visualized, so that visual recognition may not be possible. Even if the sheet (B) is not interposed, the latent image line pattern (3a) may be discriminated.

  Therefore, the line width (1/2) of the line part (7a) and the non-line part (7b) of each of the lines (7) is either in the range of 10 to 1000 μm, preferably in the range of 10 to 500 μm. It is desirable to set it.

In the present invention, the line pitch of the line (7) of the line pattern (3) and the latent image line pattern (3a) and the line (7) of the visualized line sheet (B) is 20 to 1000 μm. By setting the line width (1/2) of the line part (7a) and the non-line part (7b) of the line (7) within the range of 10 to 500 μm, the visualized line sheet ( When overlaying and aligning B), a latent image pattern-attached PTP wrapping material (A) having a good latent image line pattern (3a) in which a clear visible image (C) appears was obtained. .

  As shown in FIG. 1, the PTP packaging material (A) with a latent image pattern according to the present invention has a lid (1), for example, a normal printed image (1 a) layer on an aluminum foil (1 b) having a thickness of 25 μm And a line pattern (3) and a latent image line pattern (3a) provided in the line pattern (3) region, and a heat-sealable lacquer layer (on the lower surface of the aluminum foil (1b)) 1c) is formed. The bottom material (2) is molded by a thermoforming method such as a vacuum / pressure forming method using a plastic substrate mainly made of a polypropylene film having a thickness of 350 μm, filled with tablets (4), and covered with a lid. Cover (1) and press-fit and seal.

  In the present invention, as a method for forming the line pattern (3) and the latent image line pattern (3a) provided in the line pattern (3) region, a case where a pressure roll (8) is used is used. There are two methods for using the flat plate (10).

  One example thereof is a method of forming a lid (1) in a PTP packaging machine with a pressure roll (8) that presses against a bottom (2) as shown in FIG.

  First, the pressure roll (8) for forming the line pattern (3) and the latent image line pattern (3a) provided in the line pattern (3) region is prepared. The embossing roll mold for forming the so-called line embossing pattern is generally formed by applying copper plating to the iron core, providing a peeling layer on the copper plating layer, and further performing copper plating on the surface. After being polished into a mirror surface, it is manufactured by cutting with a diamond tool. Alternatively, after transferring the carbon tissue in which the positive line embossing pattern is baked onto the mirror-like copper plating layer surface, it is developed with hot water and corroded with ferric chloride solution. In addition, after forming a pattern in order to improve the durability at the time of press molding, plating such as chromium or nickel is performed. Alternatively, a method of providing a nickel plating layer and further forming a TiN layer on the surface by an ion plating method is used.

  A pressure roll (8) composed of an embossing roll mold while superimposing the lid (1) and the bottom material (2) on a PTP packaging machine (for example, Eco Blister BP-600E manufactured by CKD Corporation) shown in FIG. Passing between the receiving rolls (9) by continuous driving and press-bonding, the lid member (1) is sealed to the bottom member (2), and at the same time in the region of the line pattern (3) and the line pattern (3) The latent image line pattern (3a) provided on the PTP packaging material (A) with the latent image pattern is obtained. In addition, the pressure roll (8) which consists of the said embossing roll metal mold | die may be heated.

  As described above, the method for producing the PTP packaging material (A) with a latent image pattern using the pressure roll (8) is placed in an endless pattern. Suitable for lots and small varieties.

  Next, as shown in FIG. 8, the other embodiment is a method of forming a lid (1) in a PTP packaging machine with a flat plate (10) that is pressure-bonded to a bottom material (2).

First, a flat plate (10) for forming the line pattern (3) and the latent image line pattern (3a) provided in the line pattern (3) region is prepared. An embossed lithographic mold for forming the so-called line embossing pattern is generally obtained by performing copper plating on an iron plate, providing a peeling layer on the copper plating layer, and further performing copper plating on the surface, After polishing to a mirror surface, it is manufactured by cutting with a diamond tool. Alternatively, after transferring the carbon tissue in which the positive line embossing pattern is baked onto the mirror-like copper plating layer surface, it is developed with hot water and corroded with ferric chloride solution. In addition, after forming a pattern in order to improve the durability at the time of press molding, plating such as chromium or nickel is performed. Alternatively, a method of providing a nickel plating layer and further forming a TiN layer on the surface by an ion plating method is used.

  A flat plate (10) made of an embossed lithographic mold while overlapping the lid (1) and the bottom (2) on a PTP packaging machine (for example, blister pack FBP-400UC type manufactured by CKD Corporation) shown in FIG. The cover pattern (3) and the line pattern (3) region are sealed at the same time as the cover material (1) is sealed to the bottom material (2) by passing between and the receiving mold (11) by intermittent driving. A latent image line pattern (3a) provided inside is formed, and a PTP packaging material (A) with a latent image pattern is obtained. The flat plate (10) made of the embossed lithographic mold may be heated.

  As described above, since the method for producing the PTP packaging material (A) with a latent image pattern using the flat plate (10) is inserted by intermittent driving, the position where the latent image enters can be fixed. Further, the embossed lithographic mold is easier to make compared to the embossed roll mold, and can be manufactured at a low cost with a short delivery time.

It is a sectional side view which shows one Example of PTP packaging material with a latent image pattern which concerns on this invention. It is a top view which shows one Example of the PTP packaging material with a latent image pattern which concerns on this invention. It is a K partial enlarged plan view of a latent image by a line pattern in a PTP packaging material with a latent image pattern according to the present invention. It is a top view of the visualization line sheet for superimposing on the PTP packaging material with a latent image pattern concerning this invention, and visualizing. FIG. 5 is an L partial enlarged plan view of a visualization line pattern in the visualization line sheet shown in FIG. 4 . It is a top view of the visualized image visualized by superimposing the visualized line sheet on the PTP packaging material with a latent image pattern according to the present invention. It is a sectional side view which shows one Example of the manufacturing method of the PTP packaging material with a latent image pattern which concerns on this invention. It is a sectional side view which shows the other Example of the manufacturing method of the PTP packaging material with a latent image pattern which concerns on this invention.

Explanation of symbols

A ... PTP packaging material with latent image pattern B ... Visualized line sheet C ... Visualized image 1 ... Lid material 1a ... Normal printed image 1b ... Aluminum foil 1c ... -Lacquer layer 2 ... Bottom material 3 ... Line pattern 3a ... Latent image line pattern 3b ... Line phase shift part 4 ... Tablet 5 ... Visualization line pattern 6 ... Transparent base material 7 ... Line 7a ... Line part 7b ... Non-linear part 8 ... Pressure roll 9 ... Receiving roll 10 ... Flat plate 11 ... Receiving type

Claims (6)

At least parallel lines with the same line pitch with 1: 1 ratio of parallel lines (parallel straight lines) between the line part and the non-line part formed by fine embossing on the lid made of aluminum foil are arranged in parallel. A PTP packaging material with a latent image pattern having a latent image line pattern in which a line pattern is formed and a line phase is shifted by a half pitch with respect to the line pattern within the line pattern region. A latent image pattern-attached PTP packaging material , wherein the parallel line pattern and the latent image parallel line pattern are formed of a flat plate in a PTP packaging machine that presses a lid material against a bottom material.   When the visualized line sheet in which the line pattern for visualization having the same line ratio and the same line pitch as the line pattern is formed on the transparent substrate is superimposed on the line pattern in parallel 2. The latent image pattern-attached PTP packaging material according to claim 1, wherein the latent image line pattern formed in the line pattern region is visualized.   3. The PTP packaging material with a latent image pattern according to claim 1, wherein the line pattern region is formed over substantially the entire region on the lid member or divided into one or several places.   The latent image pattern-attached PTP packaging material according to any one of claims 1 to 3, wherein a plurality of the latent image line patterns are formed at different locations in the line pattern region.   5. The PTP packaging material with a latent image pattern according to claim 1, wherein the line pattern has a linear shape, a wavy shape, a curved shape, or a combination thereof.   The latent line according to any one of claims 1 to 4, wherein the line pattern has a square dot shape, a round dot shape, a halftone dot shape, a lattice dot shape, or a dot shape formed by a combination thereof. PTP packaging material with image pattern.

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