JP5997924B2 - Easy-open blister pack - Google Patents

Description

  The present invention relates to a blister package for packaging pharmaceutical products and the like. In particular, the present invention is not suitable for tablets that easily disintegrate, effervescent tablets, tablets that are sensitive to moisture, large tablets that are difficult to extrude by PTP (press through package), or tablets that disintegrate in the oral cavity (OD tablets), and PTP packaging. The present invention relates to a blister package that can be opened by turning a non-sealed portion as a tab, which is suitable for packaging of various drugs (eg, granules, liquids, semi-solid preparations, etc.).

  Blister packaging is often used for packaging drugs such as tablets and capsules. In the blister packaging, typically, a sheet in which a blister serving as a medicine container is formed and a sheet that is sealed to be a lid are bonded and integrated. Blister packaging can be broadly divided into PTP packaging type, which pushes the container from the outside, and breaks and opens the lid seal with chemicals, and blister package type, which opens the lid sheet by turning it off. .

At the time of opening the blister package, a device has been devised so that a part of the sheet functions as a non-seal part and a tab for picking the non-seal part with a finger so that the sheet serving as a lid can be easily peeled off. Arrangement of a non-seal part in the peripheral part of blister packaging (Patent Documents 1 to 3) and arrangement at perforations of the perforation for separating the storage part have been studied (Patent Documents 4 to 6).
However, in spite of these studies, there has not yet been a satisfactory satisfaction with respect to openability.

JP 2000-281130 A JP 2007-197084 A Japanese Utility Model Publication No. 51-86376 Japanese Patent No. 4037464 Special table 2009-501682 Japanese Utility Model Publication No. 49-47079

  An object of the present invention is to provide a blister package that can be easily opened. In particular, it is an object of the present invention to provide a blister package that can be easily opened regardless of the type of medicine contained.

  In order to solve the above-mentioned problems, the present inventors have intensively studied and found that the non-adhesive part can be easily turned over and opened by making it a predetermined shape, and further research has been conducted. As a result, the present invention has been completed.

That is, the present invention relates to the following blister package.
[1] A blister package having a plurality of packaging units each composed of a housing part for housing an article and a flange part surrounding the housing part, which are formed by bonding two upper and lower sheets, and each adjacent packaging unit Are connected to each other through a weakening line for cutting at each flange portion between the packaging units, and have a length of ½ or more of the length on the weakening line, and the housing The blister package, wherein a boundary portion having a width that can be separated from the portion is formed, and the two sheets are not bonded at the boundary portion.
[2] The blister package according to [1], wherein the length of the boundary portion is 2/3 or more of the length of the weakening line between adjacent packaging units.
[3] The blister package according to [1] or [2], wherein one of the upper and lower sheets is convex at the boundary.
[4] The blister package according to any one of [1] to [3], in which no boundary portion is present in the flange portion serving as the outer periphery of the blister package.
[5] The blister package according to any one of [1] to [4], wherein each packaging unit is arranged in a matrix and has a boundary only in the column direction.
[6] The blister package according to [5], wherein boundary portions adjacent in the row direction communicate with each other.
[7] The blister package according to any one of [1] to [6], wherein the upper and lower two sheets are laminated sheets of aluminum and resin, respectively.
[8] The blister package according to any one of [1] to [7], wherein the article is a drug.
[9] The blister package according to [1] to [8], wherein the drug is a tablet.

  When the blister package of the present invention is distributed as a product, two sheets (typically, a blister sheet provided with a blister and a sheet serving as a lid) are bonded to each other on the outer periphery, and are transported to a box. Although it is not opened by taking in and out, etc., when it is cut into packaging units, the non-adhered portion is also cut together, and the non-adhered portion of the blister sheet or the cover sheet becomes a tab. Since this tab has a certain length, it can be easily opened with a finger because it is easy to pinch with a finger and the turning force is widely transmitted to the sheet.

  The blister package of the present invention is easily affected by moisture such as effervescent tablets, and generally protects and stabilizes drugs that are difficult to store stably by moisture, such as PTP packaging with low moisture resistance, from moisture. And can be easily opened at the time of use. In addition, tablets with low tablet hardness and easily disintegrate, effervescent tablets, other tablets that are vulnerable to moisture, large tablets that are difficult to extrude with PTP, tablets that are deformed and unsuitable for PTP, and tablets that are fragile, such as orally disintegrating tablets (OD tablets) It can also be applied to drugs unsuitable for PTP packaging (for example, granules, liquids, semi-solid preparations, etc.).

FIG. 1 illustrates a blister package of one embodiment of the present invention. FIG. 2 is a diagram illustrating a packaging unit of one embodiment of the present invention. FIG. 3 illustrates a blister package of one embodiment of the present invention.

The blister package of the present invention has, as a basic configuration, a plurality of packaging units that are formed by laminating two upper and lower sheets, and are composed of a housing portion that houses an article and a flange portion that surrounds the housing portion. The two sheets are typically a blister sheet having a plurality of convex portions serving as a housing portion, and a sheet serving as a lid that adheres to the blister sheet and seals the housing portion. In addition, for example, both the two sheets have convex portions that serve as accommodating portions, and these are bonded together at corresponding positions, and the convex portions of the two sheets integrally form one accommodating portion, It is also possible to prepare such that a convex portion and a planar portion are bonded to each other, and a housing portion that protrudes above and below the bonding surface is provided.
A weakening line is provided between each of the housing parts formed by bonding these two sheets, and the weakening line is cut to form one housing part and a flange around the housing part. It can be divided into packaging units.

  The material of the blister sheet that can be used for the blister package of the present invention is not particularly limited. For example, vinyl chloride (PVC), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), nylon (NY) ), Heat seal coat, overcoat, etc. can be used. A material excellent in waterproof / moisture resistance and tensile strength is preferable. Examples of such a material include a laminated sheet of aluminum and resin, and more specifically, aluminum (AL) and vinyl chloride (PVC). And a laminated material of nylon (NY), laminated material of aluminum (AL), polyethylene (PE) and PET, AL-PET-PP, and the like. As the sheet on the container side into which the medicine is put, a laminate sheet of NY-AL-PP or NY-AL-PVC is particularly preferable. In the present invention, the two sheets may be the same or different from each other, and can be appropriately combined in accordance with the purpose and application. Further, the sheet may be partially different in material, for example, the housing part, the flange part, and the boundary part may be different from each other, and the entire sheet including the housing part is made of a single material. It may be.

  The material of the sheet serving as a lid that can be used in the blister package of the present invention may be the same as or different from the material of the blister sheet, and is not particularly limited. For example, AL-PVC, AL- PP, AL-PE, AL-PET, etc. can be used. When using a material excellent in waterproof / moisture resistance as the material of the blister sheet, it is preferable to use a material excellent in waterproof / moisture resistance / tensile strength even in the sheet serving as the lid. Examples include AL-PET-heat seal coat and AL-PET-heat seal coat. Particularly preferred is PET-AL-PET-heat seal coat, but is not limited thereto.

  The magnitude | size of the accommodating part of the blister package of this invention can be suitably changed according to the magnitude | size of what to accommodate. When a medicine is accommodated, typically, the size is about 0.5 cm to 5 cm × 0.5 cm to 5 cm in width, preferably 0.5 cm to 4 cm × 0.5 cm to 4 cm in width. Particularly preferably, the length is 0.5 cm to 3 cm x 0.5 cm to 3 cm, but is not limited thereto.

Although the accommodating part of a blister package can be suitably changed according to the magnitude | size, shape, etc. of what to accommodate, it can be made into shapes, such as circular, an ellipse, a square, a rectangle, for example. The flange portion of the blister package can be arbitrarily formed according to the size, shape, etc. of the housing portion.
In the blister package of the present invention, adjacent packaging units are connected to each other via a weakening line for cutting at each flange portion between the adjacent packaging units. Examples of the weakening line include perforations and half-cut lines, but perforations are preferred from the viewpoint of ease of processing. In the blister package of the present invention, the weakening line is divided at the time of use and used after being divided into each packaging unit.

In the present invention, when the product is distributed as a product, in an unused state, the outer periphery of the blister package is bonded, and there is no gap between the blister sheet and the sheet serving as the lid, so that unintentional opening due to dripping may occur. I don't get up.
Adhesion can be performed using conventional bonding means such as heat welding (hot air welding, hot plate welding, impulse welding, trowel welding, etc.), high frequency welding, ultrasonic welding, etc. They can be selected as appropriate.

In the present invention, adjacent packaging units are connected to each other via a weakening line, and a boundary portion is formed on the weakening line, and the two upper and lower sheets are non-adhering at the boundary portion. Moreover, one sheet | seat is convex shape in a boundary part, and when a weakening line is cut | disconnected, it floats as a tab and it can make it easy to pinch. Furthermore, both sheets may be convex at the boundary.
The size of the boundary portion is 1/2 or more of the length of the weakening line provided in the packaging unit, preferably 2/3 or more, and more preferably 3/4 or more. It has a width that can be formed and can be separated from the accommodating portion, that is, a width that does not communicate with the accommodating portion even if the boundary portion is not bonded.

  The blister package of the present invention is provided with a weakening line so as to form a longitudinal section of the boundary part or one side of the boundary part, and a sheet that becomes a blister sheet or a lid by cutting the weakening line. The boundary part on one or both sides is a tab. The packaging unit can be opened by turning the tab. By increasing the length and width of the boundary portion, the force for turning the tab is transmitted widely, and the housing portion can be easily opened. The shape of the boundary portion is not particularly limited as long as a tab having a sufficient length is formed, such as a rectangle or an arc having a short side of the rectangle. Moreover, the position may straddle the weakening line, and may be located only on one side of the weakening line without straddling.

  In the blister package of the present invention, the blister sheet and / or the sheet serving as a lid are convex at the boundary, and when the tab is formed, a gap is formed between the sheets, and the tab is picked with a finger. It becomes easy. The convex portion is preferably provided on the blister sheet for ease of production.

Moreover, when each packaging unit is arrange | positioned at a matrix, it is preferable that a boundary part has a boundary part only in one direction of a row direction or a column direction from a viewpoint on manufacture. For example, when a boundary part is provided only in the row direction of each packaging unit, the boundary part adjacent to the row direction may be communicated (FIG. 1).
The object to be packaged with the blister package of the present invention is not particularly limited, but is particularly susceptible to moisture and / or fragile drugs such as effervescent tablets, or drugs unsuitable for PTP packaging (for example, granules) , Liquids, semi-solid preparations, etc.).

Embodiments of the present invention will be described in detail below with reference to the drawings, but the present invention is not limited to these drawings.
As shown in FIG. 1, the blister package 1 according to one aspect of the present invention includes six storage portions 2 of 2 rows × 3 columns, each having a weakening line (perforation) 4 provided on the flange portion 3. It is divided into packaging units 5. A boundary portion 6 communicating with the flange portion 3 in a rounded rectangular shape is provided along the row of the accommodating portions 2, and the weakening line 4 is vertically cut along the boundary portion 6.

  The boundary part 6 does not exist in the edge part of the blister package 1, and it is possible to prevent accidental opening in the unused state. The boundary portion 6 is formed over substantially the entire length of one side of the packaging unit 5.

  FIG. 2 is an enlarged view of the packaging unit 5 on the left side of the AA cross-sectional view of FIG. 1. In the non-contact portion 6, the blister sheet 7 is convex, and between the sheet 8 serving as a lid. A gap is provided and it is easy to pick with a finger during use. The packaging unit 5 after cutting the weakening line 4 is opened by opening the tab (non-adhesive part of the blister sheet 7) formed by dividing the boundary part 6 to expose the inside of the accommodating part 2.

  FIG. 3 illustrates another aspect of the present invention. In such an embodiment, the intersection of vertical and horizontal weakening lines (perforations) 4 that divide the packaging unit 5 is used as an adhesive portion. In this way, each individual packaging unit 5 divided by the weakening line 4 is in a state where the blister sheet 7 is bonded to the sheet 8 serving as a lid at all corners, and is unintentionally opened before use. Can be further avoided, and can be easily opened by turning up a wide tab in use.

  INDUSTRIAL APPLICABILITY The present invention can be used for packaging drugs, foods, daily necessities and the like that have conventionally been used in blister packaging, but is particularly suitable for packaging contents that are fragile and are not suitable for PTP packaging.

DESCRIPTION OF SYMBOLS 1 Blister package 2 Storage part 3 Flange part 4 Weakening line 5 Packaging unit 6 Boundary part 7 Blister sheet 8 Sheet | seat used as a lid | cover

Claims (7)

A blister package having a plurality of packaging units composed of a housing portion for housing an article and a flange portion surrounding the housing portion, which are formed by bonding two upper and lower sheets,
Adjacent wrapping units are connected to each other via a weakening line for cutting at each flange portion between the wrapping units, and have a length of ½ or more of the length on the weakening line. In addition, a boundary portion having a width that can be separated from the housing portion is formed, and the two sheets are not bonded at the boundary portion, and the respective packaging units are arranged in a matrix, and the row direction Or the said blister package which has a boundary part in one or both of the row | line | column direction, uses the intersection of the vertical and horizontal weakening line which divides a packaging unit as an adhesion part, and a boundary part does not exist in the flange part used as the outer periphery of a blister package.   The blister package according to claim 1, wherein the length of the boundary portion is 2/3 or more of the length of the weakening line between adjacent packaging units.   The blister package according to claim 1 or 2, wherein one of the upper and lower sheets is convex at the boundary. Has only boundary in the column direction, the blister packaging according to any one of claims 1-3. The blister package according to any one of claims 1 to 4 , wherein the two upper and lower sheets are laminated sheets of aluminum and resin, respectively. The blister package according to any one of claims 1 to 5 , wherein the article is a drug. The blister package of claim 6 , wherein the drug is a tablet.

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