JP2001031136A - Ptp packaging body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the treatment of a PTP(press-through packaging) body which is empty after use and to prevent aluminum foils from injuring fingers during a packaging body fabrication work or during the unsealing of the packaging body, and to avoid danger that fragments of aluminum foils are taken in. SOLUTION: The PTP(press-through pack) packaging body comprises a pocket sheet 1 wherein a plurality of pockets each having a predetermined depth are formed, a predetermined content C put into the pocket of the sheet 1, and a cover sheet 2 which covers and seals open side of the sheet 1. The sheet 2 is prepared by laminating at least an outer side layer 3 made of a synthetic resin and an adhesive inner surface layer 4 made of a synthetic resin, and an easily-unsealable fretting layer 3a is formed on the inner side of the layer 3 or layer 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of loading contents such as food, medicine tablets, glass ampules and the like into a pocket of a plastic pocket sheet having a plurality of pockets of a predetermined depth regularly. The present invention relates to a PTP package called a press-through pack in which an opening is covered with another covering sheet and hermetically packed.

[0002]

2. Description of the Related Art As a material of a covering sheet used for the conventional hermetic packaging of a PTP package, a laminated sheet of a flexible plastic sheet and an aluminum foil or a laminated sheet of a hard plastic sheet and an aluminum foil is used. Have been.

Further, as a material of the pocket sheet for loading the contents, polyvinyl chloride, polypropylene, polyethylene terephthalate, or the like is used, and polyvinylidene chloride having a high water vapor barrier property is coated in order to provide moisture proofness. Things are used.

In this PTP package, contents such as tablets are pressed from the outside of the pocket to the cover sheet side, the cover sheet is broken open by the pressing force of the contents, and the contents are taken out from the package and used. Things.

[0005]

As the covering sheet of such a PTP package, a laminate sheet of a plastic sheet and an aluminum foil is conventionally used, so the PTP package after the solid contents are taken out. In the waste disposal, since plastic and aluminum foil are contained, there is a problem that simple disposal cannot be performed from the viewpoint of maintenance of the natural environment.

Further, in the conventional PTP package, there is a risk that the aluminum metal foil may hurt the hand during the manufacturing operation of the package and during the opening of the package, There is also a danger of swallowing metal foil fragments with the contents.

The present invention makes it possible to easily dispose of an empty PTP package after use, and to prevent damage to or damage to fingers due to aluminum metal foil during the package manufacturing operation or during opening of the package. To avoid the danger of swallowing broken aluminum metal foil fragments.

[0008]

According to the first aspect of the present invention, there is provided a pocket sheet formed with a plurality of pockets having a predetermined depth, and a predetermined content loaded in the pocket of the pocket sheet. C, and a PTP (press-through pack) package comprising a cover sheet 2 covering and sealing the opening side of the pocket sheet 1, wherein the cover sheet 2 comprises at least an outer surface layer 3 made of synthetic resin and a synthetic resin A PTP package characterized in that the PTP package is formed by laminating a nonmetallic material with an adhesive inner surface layer 4 of the PTP package.

According to a second aspect of the present invention, there is provided a pocket sheet 1 formed with a plurality of pockets of a predetermined depth, a predetermined content C loaded in the pocket of the pocket sheet 1, and a pocket sheet 1. 1. A PTP (press-through pack) package comprising a cover sheet 2 whose opening side is covered and sealed, wherein the cover sheet 2 comprises at least an outer surface layer 3 made of a synthetic resin and an adhesive inner surface layer 4 made of a synthetic resin. A PTP package characterized in that an easy-opening abrasion is applied to at least the inner surface side of the cover sheet 2.

Next, according to a third aspect of the present invention, there is provided the PTP package according to the first or second aspect, wherein the outer surface layer 3 and the adhesive inner surface layer 4 constituting the covering sheet 2 A PTP package characterized in that an easy-opening abrasion is applied to one or both of the inner surfaces of the laminate.

Next, according to a fourth aspect of the present invention, in the PTP package according to the first to third aspects, the outer surface layer 3 and the adhesive inner surface layer 4 are bonded to each other with an adhesive or A PTP package characterized by being bonded via a heat-fusible resin.

Next, according to a fifth aspect of the present invention, in the PTP package according to the first to third aspects, the outer surface layer 3 and the adhesive inner surface layer 4 are dry-laminated with each other. Alternatively, the PTP package is adhered by an extruder lamination method.

Next, according to a sixth aspect of the present invention, in the PTP package of the first to fifth aspects, one or both of the outer surface layer 3 and the adhesive inner surface layer 4 are provided. PTP characterized by being a stretched film
It is a package.

Next, according to a seventh aspect of the present invention, there is provided the PTP package according to the sixth aspect, wherein one or both of the outer surface layer 3 and the adhesive inner surface layer 4 is at least a uniaxially stretched film. And a direction in which the stretch orientation direction is substantially equal to a direction in which the easily-openable abrasion is cut.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the PTP package of the present invention will be described below in detail with reference to the side sectional view of the PTP package shown in FIG.

PTP as a first embodiment of the present invention
The package has a plurality of concave pockets 1a having a predetermined depth.
A plastic pocket sheet 1 formed by a plastic sheet forming method as appropriate, such as a hot vacuum forming method or a hot press forming method.

Each pocket 1a of the pocket sheet 1 is loaded with a predetermined content C, and a covering sheet 2 is overlaid and covered on a flat surface on the pocket opening side, and the overlapping surfaces of each other are covered. Are bonded by heat fusion to seal each pocket 1a.

As shown in FIG. 1, the covering sheet 2 is composed of two layers made of a non-metallic material having an outer layer 3 made of synthetic resin and an adhesive inner layer 4 made of synthetic resin. They are bonded and adhered or laminated by coating.

As shown in FIG. 1, the outer layer 3 and the inner layer 4
May be formed of a non-stretched synthetic resin film, or one or both of them may be formed of a uniaxially stretched film, so that the film can be easily torn open in the direction of the stretching axis. Is also good.

PTP as a second embodiment of the present invention
As shown in FIG. 1, the covering sheet 2 is made of a non-metallic material, and is formed by laminating two layers by an outer surface layer 3 made of synthetic resin and an adhesive inner surface layer 4 made of synthetic resin. Sheet 2
The inner surface side of the outer surface layer 3 is almost entirely openable abrasions 3a.
The abrasion 3a is a large number of fine bristle linear patterns extending in one direction (equal direction) or in multiple directions (different directions), and the outer surface layer 3 is easily broken along the abrasion 3a. Therefore, the covering sheet 2 is easily broken including the adhesive inner surface layer 4.

The PTP package according to the second embodiment also includes an abrasion 3a on the inner side of the adhesive inner layer 4 facing the abrasion 3a on the inner surface of the outer layer 3 in FIG. Similar abrasions may be provided in the same direction or different directions.

FIG. 2 is a side sectional view of a PTP package according to a third embodiment of the present invention, in which a covering sheet 2 is laminated in three layers, and an outer layer 3 and an inner layer 4 are bonded. Layer 5
And the inner surface of the outer layer 3 is provided with an easy-opening abrasion 3a on substantially the entire surface thereof.
Is a large number of thin bristle linear patterns extending in one direction (equal direction) or in multiple directions (different directions) as in the second embodiment, and the outer surface layer 3 is broken along the abrasions 3a. Therefore, the covering sheet 2 is easily broken including the adhesive inner surface layer 4 and the adhesive layer 5.

FIG. 3 is a side sectional view of a PTP package according to a fourth embodiment of the present invention, in which a covering sheet 2 is laminated in three layers in the same manner as in the third embodiment. The outer surface layer 3 and the inner surface layer 4 are laminated and adhered by the adhesive layer 5, but the inner surface of the outer surface layer 3 is provided with an easily-opening abrasion 3 a almost entirely, and the adhesive inner surface layer facing the adhesive layer 5. Also on the inner surface side of 4, an easy-opening abrasion 4a similar to the abrasion 3a of the outer surface layer 3 is provided in the same direction or a different direction.

As a material of the pocket sheet 1 in the PTP package of the present invention, a plastic sheet such as polyvinyl chloride, polypropylene, polyethylene, polyethylene terephthalate, polystyrene, polyamide or the like is used. A coating of polyvinylidene chloride having a high barrier property is used.

As the material of the outer layer 3 constituting the covering sheet 2, a non-stretched or stretched plastic film such as polyethylene terephthalate, polypropylene or polyethylene can be used. As the material of the adhesive inner layer 4, Adhesive to the material of the outer layer 3,
In addition, a polyolefin-based (polyethylene-based, polypropylene-based) thermal adhesiveness capable of heat-sealing (ultrasonic heating seal, high-frequency heating seal, electric heater heating seal, etc.) a flat surface around the opening of each pocket 1 a of the pocket sheet 1. Resins or unstretched or stretched films thereof can be used.

The outer surface layer 3 of the cover sheet 2 and the adhesive inner surface layer 4
May be any of a lamination method or a coating method, and in the case of the lamination method, may be any of dry lamination, extruder lamination, and wet lamination.

The layer constituting material of the adhesive layer 5 for adhesively laminating the outer surface layer 3 and the inner surface layer 4 constituting the covering sheet 2 may be an adhesive resin for dry lamination, extruder lamination, wet lamination, or the like. An adhesive can be used, for example, a polyurethane-based adhesive for dry lamination or a polyethylene-based hot-melt resin can be used.

In the present invention, the inner surface of the film of the outer surface layer 3 or the inner surface layer 4 facing the outer surface layer 3 or the adhesive layer 5 is used.
Easily opened abrasions 3a, 4a formed on the inner surface of the film
May be in the same direction (equal direction) or in multiple directions (different directions), but when a stretched film (uniaxially stretched or biaxially stretched) is used as the film, the stretching orientation of the film Direction (approximately the same direction)
It is appropriate to apply a scratching treatment to the surface.

Further, the easily-openable abrasions 3a and 4a are abrasions provided in a state of not penetrating the film,
By subjecting the film surface to a scratching treatment such as the abrasions 3a and 4a, the PT is comparable to an aluminum foil despite the fact that the covering sheet is made entirely of plastic.
It can impart easy-opening suitability (press-through suitability; press-opening suitability) as a P package.

In the present invention, the easy-opening abrasions 3a, 4a
Is not applied to the film surface but is applied to the inner surface of the film, so that no scratch appears on the surface (outer surface), the surface of the cover sheet 2 of the PTP package is excellent in cosmetics, and the surface of the cover sheet 2 Has good printability and abrasion 3
There is no fear that through-holes are formed in the film from the scratched portion due to the lamination after the application of a and 4a.

Further, the coated sheet 2 of the present invention is provided with an easy-opening abrasion treatment by subjecting one or both of the laminated film of the film of the outer surface layer 3 and the film of the inner surface layer 4 to an unpenetrated state. After forming
By laminating the surfaces on which the abrasions are formed so as to face each other, no abrasions appear on the film surface and no through-holes are formed, and even if the through-holes are formed, the laminating adhesive layer 5 ( It is possible to bury holes generated by an adhesive or a hot-melt resin), not only to secure the sealing property and the sealing property, but also to form a clean laminate surface without impairing the appearance of the film surface.

For example, when the surface of the outer layer 3 of the cover sheet 2 is subjected to a scratching treatment, the appearance and aesthetics of the cover sheet 2 are impaired, and the surface smoothness and printability are poor. Since the inner surface of the cover sheet 2 in the present invention has been subjected to a scratching treatment, the appearance and aesthetics of the PTP package, the smoothness of the surface, good printability and the like can be obtained.

[0033]

According to the PTP package of the present invention, all the materials of the pocket sheet and the cover sheet are made of synthetic resin, and the cover sheet is made of non-metallic material.
There is no need to sort into plastic and metal materials in the disposal of P-packaged bodies, and it can be easily disposed of.
Damage to the fingers due to aluminum metal foil on the covering sheet as in the past during the manufacturing process of the package or opening the package,
This has the effect of avoiding the danger of swallowing broken aluminum metal foil fragments.

[0034] In spite of being made entirely of plastic, the covering sheet can be easily pressed and opened (press-through) due to the formed abrasion to take out the contents, and the easy-opening property can be maintained. In addition, obstructiveness and sealing performance can be secured.

Further, since the abrasion imparting easy-opening property is formed on the inner surface of the constituent film of the covering sheet, the appearance of the covering sheet surface is not impaired, and a clean laminate surface can be formed. There is an effect that printability is also obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view illustrating a PTP package according to a first embodiment of the present invention.

FIG. 2 is a side sectional view illustrating a PTP package according to a second embodiment of the present invention.

FIG. 3 is a side sectional view illustrating a PTP package according to a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pocket sheet 1a ... Pocket (concave container part) 2 ... Coating sheet 3 ... Outer surface layer 3a ... Easy opening abrasion
4 ... Inner surface layer 4a ... Easy opening abrasion 5 ... Adhesive layer C ... Content

Claims (7)

[Claims] 1. A pocket sheet 1 formed with a plurality of pockets having a predetermined depth, a predetermined content C loaded in the pocket of the pocket sheet 1, and an opening side of the pocket sheet 1 are covered and sealed. A PTP (press-through pack) package comprising the covering sheet 2, wherein the covering sheet 2 is
A PTP package comprising at least a non-metallic material laminated with an outer surface layer 3 made of a synthetic resin and an adhesive inner surface layer 4 made of a synthetic resin. 2. A pocket sheet 1 in which a plurality of pockets having a predetermined depth are formed, a predetermined content C loaded in the pocket of the pocket sheet 1, and an opening side of the pocket sheet 1 are covered and sealed. A PTP (press-through pack) package comprising the covering sheet 2, wherein the covering sheet 2 is
At least the inner surface of the covering sheet 2 is provided with easy-opening abrasions at least on the inner surface side of the covering sheet 2 at least on the outer surface layer 3 made of synthetic resin and the adhesive inner surface layer 4 made of synthetic resin. PTP package. 3. The PTP package according to claim 1, wherein one or both of the inner surface and the inner surface of the laminate of the outer surface layer 3 and the adhesive inner surface layer 4 constituting the covering sheet 2 are easily openable. PT characterized by having
P package. 4. The PTP package according to claim 1, wherein the outer surface layer 3 and the adhesive inner surface layer 4 are bonded to each other via an adhesive or a hot-melt resin. PTP package. 5. The PTP package according to claim 1, wherein the outer surface layer 3 and the adhesive inner surface layer 4 are bonded to each other by a dry lamination method or an extruder lamination method. PTP package. 6. The PTP package according to claim 1, wherein one or both of the outer layer 3 and the adhesive inner layer 4 is a stretched film. 7. The PTP package according to claim 6, wherein one or both of the outer surface layer 3 and the adhesive inner surface layer 4 is at least a uniaxially stretched film, and the stretch orientation direction and the easy-opening abrasion. A PTP package, wherein a cutting direction is substantially equal to the cutting direction.