Packaging sheet

Abstract

To provide a packaging sheet capable of ensuring gas barrier properties, making contents visible, and reliably resolving problems such as difficulty in taking out the contents. [Solution] A PTP sheet 1 serving as a packaging sheet comprises a container film 3 having a pocket portion 2 formed therein for accommodating tablets 5 as contents, and a cover film 4 attached to the container film 3. The container film 3 is made of an aluminum laminate film or an aluminum vapor-deposited film. The cover film 4 is made of a resin film that has gas barrier properties and is translucent to at least part of the wavelength range of visible light. At least the portion of the cover film 4 corresponding to the pocket portion 2 is translucent enough to allow the tablets 5 accommodated in the pocket portion 2 to be visually recognized.

Description

[Technical Field]

[0001] The present invention relates to a packaging sheet containing contents such as tablets. [Background technology]

[0002] Generally, packaging sheets such as PTP (press-through pack) sheets are known in the pharmaceutical field. The packaging sheet comprises a container film having a pocket portion for accommodating contents (e.g., tablets) and a cover film attached to the container film so as to seal the opening side of the pocket portion. From the viewpoint of improving gas barrier properties, packaging sheets in which the container film is made of an opaque material such as an aluminum laminate film or an aluminum vapor deposition film and the cover film is made of an opaque material such as aluminum foil are known.

[0003] The above-described packaging sheet can be produced by a packaging machine such as a blister packaging machine, which includes a means for stretching a conveyed strip-shaped container film to form a pocket, a means for filling the pocket with contents, a means for attaching a strip-shaped cover film to the container film so as to seal the opening side of the pocket, and a means for cutting the strip-shaped packaging film consisting of the container film and the cover film into sheets to obtain the packaging sheet.

[0004] Incidentally, when the container film is made of an aluminum laminate film or the like, the formability is lower than when the container film is made of a resin film such as polypropylene. Therefore, when forming a pocket portion in the container film, the portion of the container film from the flat portion (flange portion) to the pocket portion needs to be curved relatively gently rather than sharply. Therefore, in order to form a pocket portion deep enough to accommodate the contents, the planar dimensions (planar area) of the pocket portion may need to be relatively large.

[0005] However, if the planar dimensions of the pocket are large, the size of the contents stored in the pocket may be extremely small compared to the size of the pocket. Furthermore, if the container film and the cover film are each made of an opaque material, the contents cannot be seen, and if the container film is made of an aluminum laminate film or the like, the feeling when pressing the pocket may be different from the feeling when the container film is made of a resin film. Therefore, if the container film is made of an opaque material such as an aluminum laminate film and the cover film is made of an opaque material such as aluminum foil, it may be difficult to remove the contents from the pocket, and there is a risk that the removed contents may be accidentally dropped.

[0006] Furthermore, if the contents are extremely small and invisible compared to the pocket, and if the pocket feels different when pressed as described above, the contents may be removed from the pocket in a position slightly different from the user's intended position. In this case, if the user accidentally drops the removed contents without touching or seeing them, the user may mistakenly believe that the pocket contained no contents from the beginning, even though there actually was a content in the pocket. Such a mistake could lead to a complaint against the packaging sheet manufacturer, etc.

[0007] In response to this, a technique has been proposed in which a size display section that indicates the size of the contents contained in the pocket section is provided in a position on the container film or cover film that is visible from the outside (see, for example, Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-49454 Summary of the Invention [Problem to be solved by the invention]

[0009] However, even if a size indicator is provided, the contents are still not visible and the feeling when pressing the pocket is different, so there is a risk that the above-mentioned problems, such as difficulty in removing the contents and the above-mentioned misidentification, cannot be fully resolved.

[0010] In response to this, it is conceivable to construct the container film from a film that is transmissive to at least some wavelengths in the visible light wavelength band and has gas barrier properties (e.g., an alumina vapor deposition film or a silica vapor deposition film), thereby ensuring gas barrier properties while allowing the contents to be seen. However, such films lose their gas barrier properties when stretched, and therefore cannot be used as container films in which pockets are formed.

[0011] The present invention has been made in consideration of the above circumstances, and its object is to provide a packaging sheet that can ensure gas barrier properties while making the contents visible and more reliably eliminating problems such as difficulty in removing the contents. [Means for solving the problem]

[0012] The following describes each of the means suitable for achieving the above object, with specific effects of the corresponding means added as necessary.

[0013] Means 1. A container film having a pocket formed therein for accommodating contents; A packaging sheet comprising: a cover film attached to the container film so as to close an opening of the pocket portion in which the contents are accommodated; The container film is made of an aluminum laminate film or an aluminum vapor-deposited film, the cover film is made of a resin film that has gas barrier properties and is capable of transmitting light having at least a part of a wavelength in the visible light wavelength band; A packaging sheet characterized in that at least the portion of the cover film corresponding to the pocket portion is translucent to such an extent that the contents contained in the pocket portion can be visually confirmed.

[0014] Examples of "resin films that have gas barrier properties and are capable of transmitting light of at least a portion of the wavelength range of visible light" include K-coat films (polyvinyl chloride dencoat), vapor-deposited films of silica and / or alumina, and films made of PVA (polyvinyl alcohol), EVOH (a copolymer of ethylene and vinyl alcohol), or MXD (barrier nylon).

[0015] According to the above-mentioned means 1, the container film is made of an aluminum laminate film or an aluminum vapor-deposited film, and the cover film is made of a resin film having gas barrier properties, thereby ensuring the gas barrier properties of the packaging sheet.

[0016] The cover film is made of a resin film that is translucent to at least some wavelengths in the visible light wavelength band, and at least the portion of the cover film that corresponds to the pocket portion is translucent enough to allow the contents stored in the pocket portion to be visible. This makes it possible to visually confirm the contents stored in the pocket portion. This more reliably eliminates problems such as difficulty in removing the contents, accidentally dropping the removed contents, and mistakenly thinking that there are no contents stored in the pocket portion.

[0017] Means 2: The packaging sheet according to Means 1, characterized in that predetermined identification information is printed on the container film.

[0018] The "identification information" may include, for example, code information (such as a barcode or two-dimensional code), letters, numbers, designs, and other information.

[0019] When attaching a resin cover film to a container film, the cover film is stretched by about 3 to 7% to prevent wrinkles from forming in the cover film, etc. However, stretching the cover film may distort the identification information printed on the cover film, making it difficult to read the identification information correctly or reducing the appearance of the identification information.

[0020] In this regard, according to the above-mentioned method 2, since the identification information is printed on the container film, the identification information is not distorted by the influence of the stretching of the cover film, which more reliably prevents problems such as the identification information not being read correctly.

[0021] Means 3. The container film has a flat flange portion located on the opening periphery of the pocket portion, The identification information is not printed on the cover film, The packaging sheet described in means 2 is characterized in that all of the identification information visible from the cover film side is printed on the flange portion and is visible through the cover film.

[0022] According to the above-mentioned means 3, no identification information is printed on the cover film, and all of the identification information visible from the cover film side is printed on the flange portion of the container film and is visible through the cover film. Therefore, while providing identification information visible from the cover film side, it is possible to more reliably prevent the identification information from being distorted by stretching the cover film. Furthermore, since the identification information is covered by the cover film, it is possible to protect the identification information.

[0023] When the identification information is printed on the cover film, in order to properly position the identification information relative to the outer edge of the packaging sheet and the pocket portion, the cover film needs to be stretched for alignment in addition to stretching to prevent wrinkles. Therefore, when the identification information is printed on the cover film, the amount of stretching of the cover film increases, which may result in a deterioration in the gas barrier properties.

[0024] In this regard, according to the above-mentioned Measure 3, since the identification information is not printed on the cover film, there is no need to stretch the cover film for alignment, and therefore the amount of stretching of the cover film can be kept relatively small, ensuring good gas barrier properties.

[0025] Means 4. The container film has a flat flange portion located on the opening periphery of the pocket portion, The diameter of the opening of the pocket portion is R (mm), When the contents are in contact with the bottom of the pocket and are furthest from the surface of the flange to which the cover film is attached along the depth direction of the pocket, the distance from the surface to the contents along the depth direction is defined as L (mm), with the side closer to the bottom being defined as the positive direction based on the surface. 0.0≦L≦+0.3R The packaging sheet according to Means 1, characterized in that it is configured to satisfy the following.

[0026] In addition, when the pocket portion has a major axis and a minor axis at the opening of the pocket portion, for example, when the pocket portion has an elliptical shape in a plan view, the major axis corresponds to R.

[0027] According to the above-mentioned means 4, since 0.0≦L is satisfied and the entire contents are contained in the pocket portion, damage to the contents or poor attachment can be more reliably prevented when attaching the cover film to the container film.

[0028] Furthermore, since the structure satisfies L≦+0.3R and the contents do not become too far away from the cover film, the visibility of the contents can be improved, which is advantageous in terms of ease of removal of the contents.

[0029] Means 5. A packaging sheet according to Means 1, characterized in that when the pocket and the contents contained in the pocket are projected along the depth direction onto an imaginary plane perpendicular to the depth direction of the pocket, the ratio of the area of ​​the projected portion of the contents to the area of ​​the projected portion of the pocket is 50% or less.

[0030] According to the above-mentioned means 5, the ratio of the area of ​​the projected portion of the contents to the area of ​​the projected portion of the pocket is 50% or less, and the contents are extremely small compared to the pocket. Therefore, problems such as difficulty in removing the contents and mistakenly thinking that there are no contents in the pocket are more likely to occur, but such problems can be effectively solved by adopting the above-mentioned means 1. In other words, the above-mentioned means 1 is more effective with a packaging sheet in which the ratio of the area of ​​the projected portion is 50% or less.

[0031] Furthermore, since the smaller the ratio of the projected area, the more likely the above-mentioned problem occurs, it can be said that the smaller the ratio, the more effective the above-mentioned Means 1. Therefore, it can be said that the above-mentioned Means 1 is more effective when the ratio is 40% or less, even more effective when the ratio is 30% or less, still more effective when the ratio is 20% or less, and extremely effective when the ratio is 10% or less.

[0032] Furthermore, the technical matters relating to the above-mentioned means may be combined as appropriate. For example, the technical matters relating to the above-mentioned means 2 may be combined with the technical matters relating to the above-mentioned means 4 or 5. [Brief explanation of the drawings]

[0033] [Figure 1] FIG. 2 is a perspective view of the PTP sheet as viewed from the container film side. [Figure 2]FIG. 2 is a perspective view of the PTP sheet as viewed from the cover film side. [Figure 3] FIG. 1 is a perspective view of a PTP film. [Figure 4] FIG. 1 is a partially enlarged cross-sectional view of a PTP sheet. [Figure 5] 10 is an explanatory diagram for explaining the pocket portion and the projection portion of the tablet, etc. [Figure 6] FIG. 1 is a schematic diagram of a PTP packaging machine. DETAILED DESCRIPTION OF THE INVENTION

[0034] An embodiment will be described below with reference to the drawings. First, the structure of a PTP sheet as a "packaging sheet" will be described in detail.

[0035] As shown in Figures 1, 2 and 4, the PTP sheet 1 has a container film 3 with multiple pocket portions 2, and a cover film 4 attached to the container film 3 so as to cover the openings of the pocket portions 2. Note that in Figure 1 etc., the container film 3 and cover film 4 are shown thicker than they actually are.

[0036] The PTP sheet 1 is formed in a rectangular shape in plan view with four arc-shaped corners. The PTP sheet 1 has two rows of pockets formed in the short side direction, each row consisting of three pockets 2 arranged along the long side direction. In other words, a total of six pockets 2 are formed. Each pocket 2 contains one tablet 5 as the "contents."

[0037] The container film 3 is made of an aluminum laminate film or an aluminum vapor deposition film and is opaque. Furthermore, the container film 3 has a flat flange portion 3a located on the periphery of the opening of the pocket portion 2, and identification information 6 is printed on both the front surface (the surface opposite to the cover film 4) and the back surface (the surface facing the cover film 4) of the flange portion 3a. A transparent overcoat layer may be provided to cover and protect the identification information 6.

[0038] The identification information 6 is, for example, code information (e.g., barcode or two-dimensional code), letters, numbers, designs, etc., and the identification information 6 in this embodiment is product information about the tablet 5. Examples of the product information about the tablet 5 include "product name," "model," "content," "dosage form," "manufacturer (manufacturer name)," "lot number," and "instructions on how to remove the tablet 5 from the pocket portion 2."

[0039] On the other hand, the cover film 4 is formed of a resin film that has gas barrier properties and is capable of transmitting light of at least a part of the wavelength range of visible light. Examples of such resin films include K-coat film (polyvinyl chloride dencoat), vapor-deposited film of silica and / or alumina, and films made of PVA (polyvinyl alcohol), EVOH (ethylene-vinyl alcohol copolymer), or MXD (barrier nylon).

[0040] Furthermore, the cover film 4 is transparent or translucent, and at least the portion of the cover film 4 corresponding to the pocket portion 2 has translucency that allows the tablets 5 contained in the pocket portion 2 to be visible. Therefore, when the PTP sheet 1 is viewed from the cover film 4 side, the tablets 5 contained in the pocket portion 2 can be seen through the cover film 4 (see Figure 2).

[0041] In addition, the identification information 6 is not printed on the cover film 4, and all of the identification information 6 visible from the cover film 4 side is printed on the back surface of the flange portion 3a and is visible through the cover film 4.

[0042] In addition, the pocket 2 and the tablet 5 contained in the pocket 2 are configured to satisfy the following relationship. That is, as shown in FIG. 4, when the diameter of the opening of the pocket 2 is R (mm), and the tablet 5 is in contact with the bottom 2a of the pocket 2 and is furthest from the surface (back surface) of the flange 3a to which the cover film 4 is attached along the depth direction of the pocket 2, and the distance from the surface to the tablet 5 along the depth direction is L (mm) with the side approaching the bottom 2a as the positive direction based on the surface, the relationship is 0.0≦L≦+0.3R. In this embodiment, the opening of the pocket 2 is circular in plan view, but the opening may be configured to have an elliptical shape in plan view, etc. In this case, the major axis of the opening of the pocket 2 corresponds to the diameter R.

[0043] Furthermore, the pocket portion 2 and the tablet 5 contained in the pocket portion 2 are configured to also satisfy the following relationship. That is, as shown in FIG. 5, when the pocket portion 2 and the tablet 5 contained in the pocket portion 2 are projected along the depth direction onto an imaginary plane VS perpendicular to the depth direction of the pocket portion 2, the ratio of the area of ​​the projected portion 5x of the tablet 5 (the hatched portion in FIG. 5) to the area of ​​the projected portion 2x of the pocket portion 2 (the portion with a dotted pattern in FIG. 5) is 50% or less. In other words, the size of the tablet 5 is extremely small compared to the size of the pocket portion 2. In this embodiment, the ratio is 15% or less. Furthermore, although the area of ​​the projected portion 5x may vary depending on the posture of the tablet 5, the ratio refers to the value when the area of ​​the projected portion 5x is maximum.

[0044] The PTP sheet 1 is produced by punching out a strip-shaped PTP film 7 (see FIG. 3) formed from a strip-shaped container film 3 and a strip-shaped cover film 4 into a sheet.

[0045] Next, we will explain the general configuration of a PTP packaging machine 10 for manufacturing the PTP sheet 1. In this embodiment, the PTP packaging machine 10 corresponds to a "blister packaging machine."

[0046] As shown in Fig. 6, a strip-shaped raw material of container film 3 is wound into a roll on the most upstream side of the PTP packaging machine 10. The container film 3 is made of aluminum laminate film or the like, and has identification information 6 printed on both the front and back sides. In addition, predetermined registration marks 8 (see Fig. 3) are printed at regular intervals on the widthwise edge of the container film 3.

[0047] The pull-out end of the container film 3 wound into a roll is guided by a guide roll 13. The container film 3 is wrapped around an intermittent feed roll 14 downstream of the guide roll 13. The intermittent feed roll 14 is connected to a motor that rotates intermittently, and feeds the container film 3 intermittently.

[0048] A pocket forming device 16 is disposed between the guide roll 13 and the intermittent feed roll 14 along the transport path of the container film 3. The pocket forming device 16 presses and stretches the container film 3 to form multiple pockets 2 at once. The pockets 2 are formed during the intervals between the transport operations of the container film 3 by the intermittent feed roll 14. Furthermore, by using the registration marks 8, the formation positions of the pockets 2 in the container film 3 are appropriately adjusted in relation to the identification information 6. Note that if the identification information 6 does not require alignment with the pockets 2, such adjustment is not necessary.

[0049] When the container film 3 is made of an aluminum laminate film or the like, the moldability is lower than when the container film 3 is made of a resin film such as polypropylene. Therefore, when forming the pocket portion 2 in the container film 3, it is necessary to make the portion of the container film 3 from the flange portion 3a to the pocket portion 2 relatively gently curved rather than sharply curved. Therefore, in order to form the pocket portion 2 deep enough to accommodate the tablet 5, the diameter R is made relatively large, and the planar dimensions (planar area) of the pocket portion 2 are made relatively large.

[0050] The container film 3 fed from the intermittent feed roll 14 is wrapped around a tension roll 18, a guide roll 19, and a film receiving roll 20, in that order. The film receiving roll 20 is connected to a motor that rotates at a constant speed, so it transports the container film 3 continuously at a constant speed. The tension roll 18 pulls the container film 3 toward the tension side by its elastic force, preventing slack in the container film 3 due to differences in the transport operations of the intermittent feed roll 14 and the film receiving roll 20, and keeping the container film 3 in a constantly tensed state.

[0051] A filling device 21 is disposed between the guide roll 19 and the film receiving roll 20 along the transport path of the container film 3. The filling device 21 is equipped with a cylindrical chute that stores the tablets 5 in a line and a shutter (both not shown) that can open and close the outlet of the chute, and fills the tablets 5 into the pocket portions 2 by opening the shutter at a predetermined timing. The filling device 21 may also be equipped with an adsorption drum (not shown) that can adsorb the tablets 5, and fill the tablets 5 into the pocket portions 2 by releasing the adsorption.

[0052] Meanwhile, the raw web of cover film 4 formed in a strip shape is wound into a roll on the most upstream side. Cover film 4 is a relatively thick (e.g., 30 to 90 μm thick) transparent or translucent resin film with gas barrier properties, and as described above, is not printed with identification information 6. The drawn-out end of the rolled cover film 4 is guided by guide roll 23 toward stretching device 24 and heating roll 25.

[0053] The stretching device 24 is provided immediately upstream of the heating roll 25 along the conveying direction of the cover film 4, and has the function of stretching the cover film 4. The stretching device 24 stretches the cover film 4, for example, by about 3 to 7%, to prevent the occurrence of "wrinkles" in the cover film 4, which is relatively thick as described above. Here, since the cover film 4 does not have the identification information 6 provided thereon and there is no need to align a predetermined portion of the cover film 4 with a predetermined portion of the container film 3 (such as the pocket portion 2), the cover film 4 is not stretched for alignment purposes. Therefore, the amount of stretching of the cover film 4 is relatively small, and the gas barrier properties of the stretched cover film 4 are sufficiently good.

[0054] The heating roll 25 can be pressed against the film receiving roll 20, and the container film 3 and the cover film 4 are fed between the two rolls 20, 25. Then, as the container film 3 and the cover film 4 pass between the two rolls 20, 25 in a heated and pressed state, the cover film 4 is attached to the container film 3, and the pocket portions 2 are closed with the cover film 4. In this way, a strip-shaped PTP film 7 is produced, with tablets 5 accommodated in each pocket portion 2.

[0055] The PTP film 7 sent out from the film receiving roll 20 is wrapped around a tension roll 27 and an intermittent feed roll 28 in that order. The intermittent feed roll 28 is connected to an intermittently rotating motor, and therefore intermittently transports the PTP film 7. The tension roll 27 pulls the PTP film 7 toward the tension side by its elastic force, preventing slack in the PTP film 7 due to differences in the transport operations of the film receiving roll 20 and the intermittent feed roll 28, and keeping the PTP film 7 constantly in a tensioned state.

[0056] The PTP film 7 fed from the intermittent feed roll 28 is wrapped around a tension roll 31 and an intermittent feed roll 32 in that order. The intermittent feed roll 32 is connected to an intermittently rotating motor, and therefore intermittently transports the PTP film 7. The tension roll 31 pulls the PTP film 7 toward the tension side by its elastic force, preventing slack in the PTP film 7 between the intermittent feed rolls 28 and 32.

[0057] Between the intermittent feed roll 28 and the tension roll 31, a slit forming device 33 and an imprinting device 34 are disposed in this order along the transport path of the PTP film 7. The slit forming device 33 has the function of forming a separation slit at a predetermined position in the PTP film 7. The imprinting device 34 has the function of imprinting an imprint at a predetermined position on the PTP film 7. Note that the separation slit and imprinting are not shown in Figure 1 etc.

[0058] The PTP film 7 fed from the intermittent feed roll 32 is wrapped around a tension roll 35 and a continuous feed roll 36 in that order downstream. A sheet punching device 37 is disposed between the intermittent feed roll 32 and the tension roll 35 along the transport path of the PTP film 7. The sheet punching device 37 has the function of punching out the outer edge of the PTP film 7 into individual PTP sheets, i.e., the function of separating the PTP sheets 1 from the PTP film 7.

[0059] The PTP sheets 1 obtained by the sheet punching device 37 are transported by a conveyor 39 and temporarily stored in a finished product hopper 40. However, defective PTP sheets 1 are not sent to the finished product hopper 40, but are discharged separately by a defective sheet discharge mechanism (not shown).

[0060] A cutting device 42 is disposed downstream of the continuous feed roll 36. An unnecessary film portion 43, which constitutes a strip-shaped residual material portion (scrap portion) remaining after punching by the sheet punching device 37, is guided by the tension roll 35 and the continuous feed roll 36, and then led to the cutting device 42. The cutting device 42 cuts the unnecessary film portion 43 to a predetermined size. The cut unnecessary film portion 43 (scrap) is stored in a scrap hopper 44 and then disposed of separately.

[0061] As described above in detail, in this embodiment, the container film 3 is made of an aluminum laminate film or an aluminum vapor-deposited film, and the cover film 4 is made of a resin film having gas barrier properties. Therefore, the gas barrier properties of the PTP sheet 1 can be ensured.

[0062] In addition, the tablets 5 contained in the pocket portion 2 can be seen through the cover film 4. This more reliably eliminates problems such as difficulty in removing the tablets 5, accidentally dropping the removed tablets 5, and mistakenly thinking that no tablets 5 are contained in the pocket portion 2.

[0063] In addition, since the identification information 6 is printed on the container film 3, the identification information 6 will not be distorted by the stretching of the cover film 4. This more reliably prevents problems such as the identification information 6 not being read correctly.

[0064] Furthermore, the identification information 6 is not printed on the cover film 4, and all of the identification information 6 visible from the cover film 4 side is printed on the flange portion 3a of the container film 3 and is visible through the cover film 4. Therefore, while providing the identification information 6 visible from the cover film 4 side, it is possible to more reliably prevent the identification information 6 from being distorted by stretching the cover film 4. Furthermore, since the identification information 6 is covered by the cover film 4, the identification information 6 can be protected.

[0065] In addition, since the identification information 6 is not printed on the cover film 4, there is no need to stretch the cover film 4 for alignment with the container film 3. Therefore, the amount of stretching of the cover film 4 can be kept relatively small, ensuring good gas barrier properties.

[0066] Furthermore, since 0.0≦L is satisfied and the entire tablet 5 is contained within the pocket portion 2, damage to the tablet 5 or poor attachment can be more reliably prevented when attaching the cover film 4 to the container film 3. On the other hand, since L≦+0.3R is satisfied and the tablet 5 is not extremely separated from the cover film 4, the visibility of the tablet 5 can be improved, which is advantageous in terms of ease of removal of the tablet 5, etc.

[0067] The present invention is not limited to the above-described embodiment, and may be implemented as follows: Of course, other applications and modifications not exemplified below are also possible.

[0068] (a) In the above embodiment, the identification information 6 is printed on both the front and back sides of the container film 3, but the identification information may be provided on only one of the front and back sides. As mentioned above, in terms of protecting the identification information 6, it is effective to print the identification information 6 on the back side of the container film 3 (the side facing the cover film 4). Of course, the container film 3 may not be provided with any identification information.

[0069] (b) In the above embodiment, the cover film 4 does not have the identification information 6 printed thereon, but the identification information may be provided on the cover film 4. In this case, however, it is preferable that the identification information does not require alignment of the container film 3 and the cover film 4 (i.e., does not require stretching of the cover film 4 for alignment). Note that, taking into account the stretching of the cover film 4 to prevent "wrinkles," the design and pitch of the identification information 6 before stretching may be adjusted.

[0070] (c) In the above embodiment, the PTP film 7 is configured so that the number of pocket portions 2 corresponding to one sheet is arranged along its width direction, but it may also be configured so that the number of pocket portions 2 corresponding to multiple sheets is arranged along its width direction.

[0071] (d) In the above embodiment, the contents are tablets 5, but the type, shape, etc. of the contents are not particularly limited. The contents may be, for example, capsules, food, electronic components, or other things other than tablets 5.

[0072] (e) The configuration of the manufactured PTP sheet 1 is not limited to that of the above embodiment. For example, the arrangement and number of pocket portions 2 in each PTP sheet 1 are not limited to those of the above embodiment.

[0073] (f) In the above embodiment, the PTP sheet 1 is cited as the "packaging sheet," but the technical concept of the present invention may be applied to packaging sheets other than the PTP sheet 1 (for example, blister sheets). [Explanation of symbols]

[0074] 1...PTP sheet (packaging sheet), 2...pocket portion, 2a...bottom, 3...container film, 3a...flange portion, 4...cover film, 5...tablet (contents), 6...identification information

Claims

1. a container film having a pocket formed therein for accommodating contents; A packaging sheet comprising: a cover film attached to the container film so as to close an opening of the pocket portion in which the contents are accommodated; The container film is made of an aluminum laminate film or an aluminum vapor-deposited film, the cover film is made of a resin film that has gas barrier properties and is capable of transmitting light having at least a part of a wavelength in the visible light wavelength band; A packaging sheet characterized in that at least the portion of the cover film corresponding to the pocket portion is translucent to such an extent that the contents contained in the pocket portion can be visually confirmed.

2. 2. The packaging sheet according to claim 1, wherein predetermined identification information is printed on the container film.

3. The container film has a flat flange portion located on the periphery of the opening of the pocket portion, The identification information is not printed on the cover film, 3. The packaging sheet according to claim 2, wherein all of the identification information visible from the cover film side is printed on the flange portion and is visible through the cover film.

4. The container film has a flat flange portion located on the periphery of the opening of the pocket portion, The diameter of the opening of the pocket portion is R (mm), When the contents are in contact with the bottom of the pocket and are furthest from the surface of the flange to which the cover film is attached along the depth direction of the pocket, the distance from the surface to the contents along the depth direction is defined as L (mm), with the side closer to the bottom being defined as the positive direction based on the surface. 0.0≦L≦+0.3R 2. The packaging sheet according to claim 1, wherein the sheet is configured to satisfy the following condition.

5. 2. The packaging sheet according to claim 1, characterized in that when the pocket and the contents contained in the pocket are projected along the depth direction onto an imaginary plane perpendicular to the depth direction of the pocket, the ratio of the area of ​​the projected portion of the contents to the area of ​​the projected portion of the pocket is 50% or less.

Images