JP2019119451A - Mount for blister pack, and blister pack - Google Patents

Abstract

To provide a mount for a blister pack that can have a container body easily separated from the blister pack, and the blister pack.SOLUTION: There is provided a mount 20 which constitutes a packaging container together with a container body 10 comprising a flange part 12 and a barrel part 11. The mount 20 is made of multi-layer made cardboard, and the mount 20 has cuts 21, 22 formed not penetrating at an interval of 1-20 mm or less along a first direction X and a second direction Y, respectively, the first direction X and second direction Y containing an angle of 60-120°. The cuts 21, 22 are 1/5 to 1/2 time as thick as the mount 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a blister pack comprising a container main body for containing contents and a container main body provided with a flange at the periphery, and a mount coated on the cylindrical main part of the container main body and adhered by the flange.

  Conventionally, a container body having a concave body portion and a flat flange portion formed by thermoforming a plastic sheet in accordance with the shape of the contents, and a base sheet which covers the opening portion of the container body and is bonded by the flange portion Blister packs are widely used in packaging of toiletries such as toothbrushes, stationery such as stick paste and stapler, and medical instruments such as injection needles.

  In such a blister pack, a board is used which has a thickness so that external force is applied in the blister pack and the contents do not break due to vibration in the blister pack, and the product (contents) is consumed on the front and back of the mount Design, design, information, etc. to appeal to people. Then, in the backing sheet, a score line such as a perforation is formed, and the backing sheet is cut out by this score line, and the contents are taken out.

JP, 2016-185812, A Japanese Utility Model Application Publication No. 4-7461

  However, when the conventional blister pack peels off the flange portion of the container body from the backing, delamination (paper peeling) may occur on the backing unexpectedly. In the case where the delamination is extended to a portion corresponding to the containing portion, there is a problem that the mounting sheet is in a state of covering the containing portion and it becomes difficult to take out the contents. In addition, even when processing is applied to the backing sheet as in Patent Document 2, if the specification of the container body is changed, the processing position of the backing sheet and the position of the flange portion of the container body do not match, There is also a problem that the mount is wasted.

  Then, this invention makes it a subject to provide the mount for blister packs which can isolate | separate a container main body easily from a blister pack, and a blister pack.

In order to solve the above-mentioned problems, in the present invention,
It is a backing sheet which comprises a blister pack with the container main body provided with the flange part and the accommodating part, Comprising:
The mount is
Multi-layered cardboard, and
The base sheet is formed with a cut that does not penetrate at intervals of 1 mm or more and 20 mm or less along the first direction and the second direction,
The angle between the first direction and the second direction is 60 ° or more and 120 ° or less,
The present invention provides the blister pack backing characterized in that the incisions are at least 1⁄5 and not more than 1⁄2 the thickness of the backing.

  Further, the present invention is characterized in that intervals of incisions in the first direction are all equal intervals, and intervals of incisions in the second direction are all equal intervals.

  Further, the present invention is characterized in that an interval between cuts in the first direction and an interval between cuts in the second direction are the same.

  Further, the present invention is characterized in that an angle between the first direction and the second direction is 90 degrees.

  Further, according to the present invention, a heat seal layer is formed on the base sheet so as to be superimposed on the surface on which the cuts are formed.

In the present invention,
And a container body provided with the body portion and the flange portion;
There is provided a blister pack characterized in that a surface on which the notch is formed of the blister pack mount and the flange portion are adhered.

  According to the present invention, it is possible to easily separate the container body from the backing sheet.

It is a front view of a blister pack concerning one embodiment of the present invention. It is a rear view of a blister pack concerning one embodiment of the present invention. It is the sectional view on the AA line in FIG. It is a top view of mount for blister packs concerning one embodiment of the present invention. It is sectional drawing which shows the detailed laminated constitution of the backing material for blister packs which concerns on one Embodiment of this invention. It is sectional drawing which shows a mode at the time of opening of a blister pack. It is a figure which shows the part which delamination generate | occur | produces corresponding to Fig.6 (a).

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
<Composition of a blister pack>
FIG. 1 is a front view of a blister pack according to an embodiment of the present invention. FIG. 2 is a rear view of a blister pack according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. As shown in FIGS. 1 to 3, in the blister pack of the present embodiment, a container body 10 having a body portion 11 for storing contents, a flange portion 12 at the periphery, and the body portion 11 of the container body 10 And a mount 20 adhered at the flange portion 12. 1 to 3 show the blister pack itself without containing the contents. The container body 10 has a body 11 in which the contents are accommodated substantially at the center in the left and right, and the peripheral edge is a flat flange 12 and a hanging hole 25 at the top. The opening side of the body portion 11 of the container body 10 is opposed to each other, and the notch forming surface 20a of the backing sheet 20 and the flange portion 12 of the container body 10 are adhered. The trunk portion 11 is convex when viewed from the front view side of FIG. 1 and is concave when viewed from the accommodation portion side which is a hollow. In the example of FIG. 1, the shape of the backing sheet 20 is a rectangular shape (meaning including a square shape), and the container body 10 has a substantially rectangular shape whose corners are rounded at both the outer edge of the flange portion 12 and the outer edge of the body portion 11 (Meaning including square shape).

  FIG. 2 is a rear view, as viewed from the mount 20 side. When viewed from the rear side, the container body 10 is hidden by the mount 20, and only the mount 20 can be viewed. The base sheet 20 has a cut forming surface 20 a and a cut non-forming surface 20 b. Since the cut formation surface 20a is located on the container main body 10 side, the cut non-formation surface 20b can be seen when viewed from the back side as shown in FIG. Since the notches 21 and 22 do not penetrate the backing sheet, only the hanging holes 25 can be seen from the back. Although printing is usually performed on either or both of the two sides of the backing sheet 20, in FIGS. 1 and 2, for convenience of explanation, printing is shown in a state where printing is omitted.

  FIG. 3 is a cross-sectional view taken along the line AA of FIG. As shown in FIG. 3, the container body 10 is bonded to the mount 20 at the flange portion 12. Since the width of the flange portion 12 is longer than the formation interval of the notches 22 in the backing sheet 20, one or more notches necessarily overlap the flange portion 12. In the example of FIG. 3, since the width of the flange portion 12 is about three times as large as the formation interval of the notches 22, the two notches 22 overlap the flange portion 12 and both ends of the flange portion 12 form the notches 22 respectively. It almost matches. 3 mainly describes the relationship between the width of the flange portion 12 in the surface direction of the backing sheet and the formation interval of the notches 22, the thickness of the container body 10, the thickness of the backing sheet 20, and the notches 22. The depths of the arrows are exaggerated in the surface direction of the backing sheet 20.

  The container body 10 is formed of the same material as a known blister pack. For example, plastic sheets of polyester resin, polyacrylic resin, polyolefin resin, polyacrylonitrile resin, polycarbonate resin, polylactic acid resin and the like are thermoformed by vacuum molding, pressure forming, vacuum pressure forming or the like. Be done. The thickness of the plastic sheet is usually 100 μm to 500 μm.

FIG. 4 is a plan view of a base for a blister pack according to the present embodiment. FIG. 4 is a view from the same view as FIG. 1 and is a front view of the blister pack in FIG. 1 with the container body 10 removed. The mount 20 shown in FIG. 4 functions as a blister pack mount. FIG. 4 shows the cut-formed surface 20 a of the mount 20. Since the cuts 21 and 22 are cuts that do not penetrate the backing sheet 20, which are formed from the cut forming surface 20a side, so-called half cut, the cut non-forming surface 20b on the opposite side is the surface thereof as shown in FIG. The marks of the incisions 21 and 22 are usually invisible. As the backing sheet 20, multilayer paper such as cardboard can be used. The thickness of the backing sheet 20 is preferably 200 μm or more and 600 μm or less. The basis weight of the backing sheet 20 is preferably 270 g / m ² or more and 400 g / m ² or less, and particularly preferably 300 g / m ² or more and 350 g / m ² or less. When the thickness and the basis weight do not reach the lower limit, the strength as the backing sheet for supporting the container body 10 becomes weak when the large number of cuts 21 and 22 are formed, and the thickness and the basis weight of these do not exceed the upper limit. In the case where the thickness exceeds the upper limit, delamination is more likely to occur at a position deeper than the deepest portion of the cuts 21 and 22.

  The notches 21 and 22 are formed at predetermined intervals over the entire notch forming surface 20 a of the backing sheet 20. In the present embodiment, the notches 21 are formed at an a mm interval, and the notches 22 are formed at an b mm interval. The intervals of the incisions may be different between the incisions 21 and the incisions 22 but may be the same. That is, a may be a = b or may not be a = b. Further, the intervals between the notches 21 may be all the same or different. Furthermore, the intervals between the incisions 22 may be all the same or different. However, it is particularly preferable that the intervals between the incisions 21 are all the same, the intervals between the incisions 22 are all the same, and a = b in order to improve the efficiency of the manufacturing process. The formation intervals a and b of the notches 21 and 22 are preferably 1 mm or more and 20 mm or less, and more preferably 5 mm or more and 10 mm or less. If the formation interval of the notches 21 and 22 is smaller than the lower limit, fine processing accuracy of the notches 21 and 22 is required, and if it is not a special processing machine, manufacture is difficult. Further, when the formation interval of the notches 21 and 22 is larger than the upper limit, when the flange portion 12 of the container main body 10 and the backing sheet 20 are bonded, a plurality of notches are not positioned at a location corresponding to the width direction of the flange portion 12 When the flange portion 12 is peeled off, there is a fear that a portion to be delaminated may be included at a position corresponding to the housing portion.

  The incisions 21 and 22 need to intersect each other. This is because, when the incisions 21 and the incisions 22 cross each other, delamination of the container body 10 from the incisions 21 or the incisions 22 is facilitated even when the container body 10 is peeled from any direction. Assuming that the direction in which the cuts 21 extend is a first direction, and the direction in which the cuts 22 extend is a second direction, an angle between the first direction and the second direction is preferably 60 ° or more and 120 ° or less. In the example of FIG. 4, the first direction is the horizontal direction (X direction) in the drawing, the second direction is the vertical direction in the drawing (Y direction), and the first direction and the second direction are orthogonal to each other. The angle between the two directions is 90 °. The angle between the first direction and the second direction is most preferably 90 °. Note that, in the example of FIG. 4, each of the notches 21 and the notches 22 is formed by twenty three. In the example of FIG. 4, the notches 21 are formed at equal intervals from the left end to the right end of the backing sheet 20 and the notches 22 from the upper end to the bottom end of the backing sheet 20, but notches are formed at the left end, right end, upper end, and bottom end It is possible to set a range that does not. It is also possible not to form a cut in the edge portion by so-called edge trimming. This is because when the outer edge of the flange portion 12 does not reach the outer edge of the backing 20 at the outer edge of the backing 20, a cut may not be necessary near the outer edge of the backing 20.

  FIG. 5 is a cross-sectional view showing a detailed layer configuration of the blister pack backing according to the present embodiment. Similar to FIG. 3, it is a cross-sectional view seen from the direction corresponding to the line AA of FIG. 1. In FIG. 3, the detailed layer configuration is omitted to avoid the complexity of the drawing, but in practice, the printing layer and the heat seal layer are laminated on the backing sheet 20. In FIG. 5, 31a is a cut formation surface side printing layer, 31b is a cut non-formation surface side printing layer, and 32 is a heat seal layer. As shown in FIG. 5, in practice, the cut-formed surface side printing layer 31a and the cut-not-formed surface side printing layer 31b for advertisement of goods, explanation, etc., and the mount 20 with the flange portion 12 of the container main body 10 A heat seal layer 32 for bonding is laminated to the backing sheet 20. The notch formation surface side printing layer 31 a and the notch non-formation surface side printing layer 31 b can be formed by a known printing method such as gravure printing, offset printing, or inkjet printing. The heat seal layer 32 is for thermally bonding the flange portion 12 of the container main body 10 and the backing sheet 20, and is formed by applying a heat seal agent. As the heat sealing agent, resins of polyester type, acrylic type, vinyl acetate type and the like and mixtures of these resins can be used, and they are appropriately selected according to the material of the container main body 10.

<Manufacturing method>
The manufacturing method of the blister pack which concerns on this embodiment is demonstrated. First, the manufacture of a blister pack base will be described. First, printing such as advertisement and product description is performed by gravure printing, offset printing or the like on both sides of the mount 20 such as cardboard. As a result, the cut formation surface side printing layer 31 a is formed on the cut formation surface 20 a side of the mount 20, and the cut non formation surface side printing layer 31 b is formed on the cut non-formation surface 20 b side of the mount 20. Subsequently, the heat seal agent is superposed on the cut formation surface side printing layer 31 a by a known application method such as a roll coater, and the entire surface is coated to form the heat seal layer 32. Subsequently, half cut processing is performed from the heat seal layer 32 side which is also the cut formation surface 20 a side of the backing sheet 20. Specifically, the cuts 21 and 22 which do not penetrate the backing sheet 20 are formed at a depth which is 1/5 or more and 1/2 or less of the thickness of the backing sheet 20. Furthermore, the through-hole used as the suspension hole 25 is formed. Up to this point, it can also be manufactured in a state in which blister sheet mounts corresponding to a plurality of products are multi-faced. Then, it can also be shipped to a vendor that fills the product in a multi-sided manner. From the multi-faced condition, use a Thomson blade to stamp out the blister pack backing for each product. As a result, a blister pack backing having the layer configuration shown in FIG. 5 is formed. The depth of the notches 21 and 22 is 1⁄5 or more and 1⁄2 or less of the thickness of the backing sheet 20 itself, and the notch forming surface side printing layer 31 a, the notch non-forming surface side printing layer 31 b, and the heat seal layer 32. It is preferable that it is 1/5 or more and 1/2 or less of the thickness including. The depth of the cuts 21 and 22 is 1/3 or more and 1/2 or less of the thickness of the backing sheet 20 itself, and the cut formation side printing layer 31 a, the cut non formation side printing layer 31 b, and the heat seal layer 32. It is more preferable that it is 1/3 or more and 1/2 or less of the thickness including.

  On the other hand, thermoforming such as vacuum forming is performed on the plastic sheet to produce the container main body 10 including the body portion 11 and the flange portion 12 constituting the accommodation portion. Preferably, one end of the flange portion 12 is not adhered to the backing 20 so that it can be picked up at the time of opening. Therefore, when molding is performed, one end of the flange portion 12 is formed to be warped toward the body portion 11 side.

  After the contents are stored in the storage portion of the container main body 10, the cut forming surface 20a side of the backing sheet 20 is opposed to the container main body 10 to cover the body portion 11, and the container main body 10 and the backing sheet 20 are aligned for mounting 20 is placed on the container body 10, and the mount 20 and the flange portion 12 of the container body 10 are thermally bonded (heat sealed). Since the heat seal layer 32 is formed on the side of the cut sheet forming surface 20 a of the backing sheet 20, it becomes possible to thermally bond the container body 10. The blister pack containing the contents is completed as described above. That is, the product which accommodated the content in the blister pack shown to FIGS. 1-3 is obtained.

<State at the time of opening>
Fig.6 (a) is a figure which shows a mode at the time of opening of the blister pack seen from the direction corresponding to sectional drawing of FIG. In addition, in order to avoid that a drawing becomes complicated, in FIG. 6, the cut formation surface side printing layer 31a, the cutting non-formation surface side printing layer 31b, and the heat seal layer 32 are abbreviate | omitted similarly to FIG. Even if the flange portion 12 of the container main body 10 starts to be peeled off and a force is applied, the flange portion 12 and the backing sheet 20 are not easily peeled off due to the adhesive force of the heat seal layer 32. When a further force is applied, delamination of the multi-layered backing 20 occurs below the flange portion 12 to which the force is applied. This delamination is caused by the occurrence of a crack along the surface direction of the mount 20 (the left and right direction in FIG. 6). In the base for blister pack of the present embodiment, the cuts 22 are formed to a predetermined depth from the side on which the cuts are formed, so the cracks along the surface direction are interrupted once at the cuts 22. Therefore, when a peeling force is applied to the flange portion 12, delamination occurs to the range of the portion 22 bonded to the flange portion 12 and the notch 22 closest to the bonded portion.

  As a result, as shown in FIG. 6A, only the portion corresponding to the flange portion 12 of the mount 20 is delaminated. Then, an opening K is formed between the housing portion constituted by the body portion 11 and the outside of the container main body 10, and the content can be taken out. At this time, the range of delamination is shown in FIG. FIG. 7 shows, in a front view of the blister pack shown in FIG. 1, the area to be delaminated of the backing sheet 20 by hatching. Assuming that a rectangular area formed by adjacent notches 21 and 22 is a block, as shown in FIG. 7, 3 × 19 including a range in which flanges 12 to which a peeling force is applied are adhered. Only blocks of will be delaminated. Since the cut formation surface 20a side of the backing sheet 20 corresponding to the storage portion remains as it is without delamination, the content printed as the cut formation surface side printing layer 31a remains visible and reads the description and the advertisement. It can also be done.

  Let's compare it with a conventional blister pack in which there is no cut in the backing. FIG. 6 (b) is a view showing a state of the conventional blister pack without an incision formed in the backing sheet at the time of opening. Even when no cut is formed in the backing, the flange 12 and the backing 20 'are not easily peeled off due to the adhesive force of the heat seal layer even if the flange 12 of the container body 10 is peeled off and the force is applied. When further force is applied, delamination of the multi-layered backing 20 'occurs below the flange portion 12 to which the force is applied. In the example of FIG. 6 (b), since the notch is not formed in the backing sheet 20 ', the crack along the surface direction continues as it is. Therefore, when the peeling force is applied to the flange portion 12 and it is pulled as it is, the portion bonded to the flange portion 12 and the portion bonded to the flange portion 12 on the opposite side across the body portion 11 Peeling will occur.

  As a result, as shown in FIG. 6 (b), the upper layer portion of the backing sheet 20 ′ is delaminated across the flange portion 12, covering the housing portion. And an opening is not made between the accommodating part comprised by the trunk | drum 11, and the exterior of the container main body 10, and extraction of the content becomes difficult. In order to take out the contents, it is necessary to break the upper layer portion of the mount 20 'in a state of covering the container, and the printing applied on the container body side of the mount 20' can not be read. It looks bad as a whole.

  Subsequently, comparison will be made with the case where a notch is formed on the outer edge side and the inner edge side of the flange portion 12. FIG. 6C is a view showing a state of the blister pack in which the cut is formed at positions corresponding to the outer edge side and the inner edge side of the flange portion 12 in the mount, at the time of opening the blister pack. Even when a notch is formed at a position corresponding to the outer edge side and the inner edge side of the flange portion 12, the flange portion 12 of the container main body 10 is peeled off by the adhesive force of the heat seal layer 32 even if it starts applying force. The section 12 and the backing sheet 20 do not peel off easily. When further force is applied, delamination of the multi-layered backing sheet 20 ′ ′ occurs below the flange portion 12 to which the force is applied. In the mount 20 ′ ′, since the cuts are formed at positions corresponding to the outer edge side and the inner edge side of the flange portion 12, cracks along the surface direction are interrupted once at these cuts. Therefore, when a peeling force is applied to the flange portion 12, delamination occurs to the range of the portion 22 bonded to the flange portion 12 and the notch 22 'closest to the portion to which the flange portion 12 is bonded.

  As a result, as shown in FIG. 6C, in the mount 20 ′ ′, the portion including the flange portion 12 is delaminated. Then, an opening K is formed between the housing portion constituted by the body portion 11 and the outside of the container main body 10, and the content can be taken out. However, in the mode as shown in FIG. 6 (c), the position where the flange portion 12 is to be adhered must be assumed in advance, and when the cut is formed in the backing sheet, the position of the blade must be reset. The problem arises that

  In the case of the base material for blister pack according to the present embodiment, cuts are formed at intervals of 1 mm or more and 20 mm or less along the first direction and the second direction, and the angle formed by the first direction and the second direction is 60 °. Since the angle is 120 ° or less, only the portion corresponding to the flange portion 12 can be delaminated regardless of the bonding position of the flange portion 12. Therefore, depending on the form of the product, the form of the container body may be different, but even in such a case, the slits 22 can be formed without resetting the position of the blade, and the blister is efficient A pack board can be created.

<Example>
A cardboard “New Pigeon (thickness 0.39 mm, basis weight 310 g / m ² )” manufactured by Oji Material Co., Ltd. was used as the backing 20. The size of the backing sheet 20 was 15 cm × 15 cm. After printing on both sides of the backing sheet 20 by offset printing, a heat sealing agent "BP-50 Kai" manufactured by Nippon Tokushu Co., Ltd. was applied to a coating weight of 5 g / m ² . Thereafter, a cut that does not penetrate is formed in the first direction and the second direction using a cutting die for cutting from the application side of the heat sealing agent. The angle between the first direction and the second direction is 90 degrees. The incisions were formed to reach the outer edge of the 15 cm × 15 cm backing sheet 20. Thereafter, the container body 10 obtained separately by injection molding is molded, and after the contents are accommodated in the housing portion of the container body 10, the blister pack is thermally bonded to the flange portion 12 of the container body 10 to accommodate the contents. It was obtained. In this blister pack, when the flange portion 12 is picked and peeled off, the backing sheet 20 is delaminated in a narrow range including the flange portion 12, a large opening K is obtained, and the product housed in the housing portion is easily taken out. It was possible.

  As mentioned above, although the suitable embodiment of the present invention was described, the present invention is not limited to the above-mentioned embodiment, and various modification is possible. Therefore, various modifications within the scope of the present invention are all included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Container main body 11 ... Body part 12 ... Flange part 20, 20 ', 20' ... Mount 20a ... Cut formation surface 20b ... Cut non-formation surface 21, 22 ... · Cut 25 · · · Hanging hole 31a · · · print layer on the cut side printing layer 31b · · · print layer on the non-cut side 32 · · · heat seal layer K · · · opening

Claims (6)

It is a backing sheet which comprises a blister pack with the container main body provided with the flange part and the accommodating part, Comprising:
The mount is
Multi-layered cardboard, and
The base sheet is formed with a cut that does not penetrate at intervals of 1 mm or more and 20 mm or less along the first direction and the second direction,
The angle between the first direction and the second direction is 60 ° or more and 120 ° or less,
The base for blister pack, wherein the incisions are not less than 1⁄5 and not more than 1⁄2 of the thickness of the base.   The blister pack backing according to claim 1, wherein the intervals of the cuts in the first direction are all equal, and the intervals of the cuts in the second direction are all equal.   The blister pack backing according to claim 1 or 2, wherein an interval between incisions in the first direction and an interval between incisions in the second direction are the same.   The blister pack backing according to any one of claims 1 to 3, wherein an angle between the first direction and the second direction is 90 °.   The blister sheet for a blister pack according to any one of claims 1 to 4, wherein a heat seal layer is formed on the surface of the backing sheet on the side on which the incisions are formed. A mount for a blister pack according to any one of claims 1 to 5, and a container body provided with a body and a flange.
A blister pack comprising a surface on which the cut is formed on the blister pack mount and the flange portion adhered to each other.

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