JP2002179140A - Blister pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blister pack whose contents can be taken out by one hand with no restrictions of a packaging material or a heat sealing condition. SOLUTION: In forming this blister pack, a sheet main body (10) made of a thermoplastic plastic sheet is provided with a storage part (13) comprising a storage main body (11) and a stick shape protrusive part (13) connected to the main body. After contents (30) are stored, the sheet main body (10) is heat sealed with a cover material (20) made of an adhesive film. In heat sealing the main body (10) with the cover material (20), the total periphery of a flange part (14) provided on the peripheral edge of the storage part (13) is heat sealed forming an annular line shape seal (15). Between the protrusive part (12) and the line shape seal (15), a half-cut line (16) is formed from the outside to the inside of the sheet main body in a roughly vertical direction relative to the protrusive part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blister pack for storing a small volume of, for example, a medicine.
In particular, the present invention relates to a blister pack that allows the contents to be taken out and poured out with one hand without removing the lid material from the sheet body.

[0002]

2. Description of the Related Art As a blister pack-like package containing a small volume of liquid material, for example, a thermoplastic plastic sheet is heat-formed, the contents are filled, and a lid material is heat-sealed and trimmed one by one. Then there is a potion pack of milk etc. which is individually packed for one person. In general, this potion pack has a half-cut on the knob, and after opening the knob at the half-cut, the lid is slightly pulled and peeled off from the sheet body to open it. And other liquids.

For this reason, it is necessary to heat seal the sheet body and the cover material so that the sheet body and the cover material have easy peeling properties. Therefore, the heat sealing portion must be strictly controlled, and the packaging material and the heat sealing conditions are restricted. Come.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems relating to a blister pack for storing a relatively small volume of liquid material and the like, and is limited by packaging materials and heat sealing conditions. It is an object of the present invention to provide a blister pack that allows the contents to be taken out with one hand without being used.

[0005]

According to the first aspect of the present invention, a thermoplastic plastic sheet is formed to provide a storage section comprising a storage section main body and a stick-shaped projection continuous with the storage section main body. A blister pack in which the sheet body is heat-sealed with a lid material made of an adhesive film after the contents are stored in the sheet body.
A heat seal in which a ring-shaped linear seal is applied to the entire periphery of the flange portion provided on the periphery of the storage portion of the seat body, and the outer side of the seat body in a direction substantially perpendicular to the protrusion between the protrusion and the linear seal. It is a blister pack characterized in that a half-cut line is provided from the inside toward the inside.

[0006] As described above, the sheet body and the lid member are heat-sealed with a ring-shaped linear seal around the entire periphery of the flange portion provided outside the storage portion of the sheet body, and the gap between the protruding portion and the linear seal is formed. A half-cut line is provided from the outside to the inside of the sheet body in a direction substantially perpendicular to the protrusion, so by bending the sheet body from the half-cut line and pressing the storage section,
The liquid material stored in the storage portion can be poured out from the half-cut line portion of the protruding portion via the unsealed portion without passing through the linear seal. These operations can be easily operated with one hand.

A second aspect of the present invention is the blister pack according to the first aspect of the present invention, wherein the contents stored in the storage section are liquid.

The blister pack of the present invention can be applied to a granular material, a powdery material, and a viscous material, but the effect is particularly remarkable when the stored material is a liquid material.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The blister pack of the present invention will be described in detail below based on one embodiment.

The blister pack according to the present invention, as shown in FIGS. 1 and 2, for example, has a storage section (13) comprising a storage section main body (11) and a stick-shaped projection (12) continuous with the storage section main body. ), The liquid material (30) is stored in the sheet body (10) provided with the cover material (2) made of an adhesive film.
0) The blister pack in which the sheet body (10) is heat-sealed in (0), wherein the heat-sealing of the sheet body (10) and the lid member (20) is performed by a flange provided on the periphery of the storage portion (13) of the sheet body. A ring-shaped linear seal (15) is applied to the entire periphery of (14) to form a heat seal, and the outer side of the sheet body is substantially perpendicular to the protrusion between the protrusion (12) and the linear seal (15). It has a structure in which a half-cut line (16) is provided from the inside toward the inside.

As the thermoplastic plastic sheet used for the sheet body (10), generally known blister pack sheets such as polyvinyl chloride resin, polystyrene resin and polyethylene terephthalate resin may be used. When the liquid (30) needs gas barrier properties, a laminated sheet in which a film or the like having gas barrier properties is appropriately laminated on the above sheet can be used.

The storage portion (13) is formed continuously with the storage portion main body (11) for storing the liquid material and the liquid material (30) which is the storage material stored in the storage portion main body. And a stick-shaped protrusion (12). The housing portion main body (11) and the stick-shaped protrusion (12) formed continuously with the housing portion main body are formed by a known sheet forming method such as a vacuum forming method, a pressure forming method, or a vacuum or a pressure forming method. It is obtained by molding the above thermoplastic sheet.

The lid member (20) is covered with a sheet body (10) obtained by molding the above-mentioned thermoplastic sheet and heat sealed, so that at least the innermost surface is made of the same material as the inner surface of the sheet body. Can be preferably used.

The heat sealing of the sheet body (10) and the lid (20) in which the storage portion is formed is performed by storing a predetermined amount of the liquid material (30) in the storage portion body (11), and then closing the sheet body ( 1
0) is covered with a lid member (20), and a ring-shaped linear seal (15) is applied to the entire periphery of a substantially central portion of a flange portion (14) provided on the periphery of the storage portion of the seat body. The linear seal is several meters from the protruding part (12) of the sheet body.
It may be applied to the outside by about m (see FIG. 2).

Preferably, the seal width of the linear seal (15) is specifically about 1 mm. This is because when peeling off the heat-sealed lid material, the lid material is easily peeled and peeled off cleanly, and the width is such that it can be completely sealed. For example, if the sealing width is set to about 1 mm and the entire flange portion is heat-sealed, the degree of freedom of material selection is restricted in order to easily peel off the lid material from the sheet body, and the heat sealing is performed. The range of conditions becomes narrow, and it becomes difficult to control the heat sealing conditions.

The flange (1) at the leading edge of the projection (12)
In 4), a half-cut line (16) is provided between the unsealed portion (17) and the linear seal (15) in a direction substantially perpendicular to the protrusion (12) from the outside to the inside of the sheet body. .

By providing the half-cut line (16), the tip of the protruding portion can be easily bent, and by pressing the housing portion body (11) lightly, the liquid material (3) can be bent.
0) can be poured out of the unsealed part (17) through the projection (12).

[0018]

As described above, in the blister pack of the present invention, the contents can be poured out simply by folding the half cut line provided on the projecting portion, and the hands are not stained. Also,
Can be operated with only one hand. The degree of freedom in selecting the material of the seat body and the lid material is expanded.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the blister pack of the present invention.
(A) is a plane explanatory view, (b) is AA 'of (a).
FIG.

FIGS. 2A and 2B are enlarged explanatory views of a portion M in FIG. 1; FIG. 2A is an explanatory plan view, and FIG.

[Explanation of symbols]

 1 Blister pack 10 Sheet body 11 Storage section body 12 Projection section 13 Storage section 14 Flange section 15 Linear seal 16 Half cut line 17 Unsealed section 20 ‥‥ Lid material 30 ‥‥

Claims (2)

[Claims] 1. After the contents are stored in a sheet body provided with a storage section main body and a stick-shaped protruding section continuous with the storage section main body by molding a thermoplastic plastic sheet, the contents are stored in an adhesive film. A blister pack in which the sheet body is heat-sealed with a lid material, wherein the sheet body and the lid material are heat-sealed by forming a ring-shaped linear seal around the entire periphery of the flange provided on the periphery of the storage portion of the sheet body. A blister pack, wherein the half-cut line is provided between the protrusion and the linear seal in a direction substantially perpendicular to the protrusion from the outside to the inside of the sheet body. 2. A blister pack according to claim 1, wherein the contents stored in said storage section are liquid substances.