JP3475326B2 - Blister package for chisel collar - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flea collecting collar blister package having a gas barrier layer for preventing chemicals from volatilizing.

[0002]

2. Description of the Related Art Conventionally, as this type of package, for example, the one described in Japanese Utility Model Publication No. 62-7568 is known. The blister package of the above publication forms a mount with a laminated sheet in which a paperboard and an aluminum foil having gas barrier properties are laminated, and the mount is placed on the opening of the synthetic resin molded body to form an aluminum foil layer of the mount. The formed heat-sealing agent layer heat-bonds the synthetic resin molded body and the backing sheet, and has effects such as stable sealing performance over a long period of time.

[0003]

However, in the above-mentioned conventional blister package, since the heat-sealant layer formed on the aluminum foil layer of the mount is used to heat-bond the mount and the synthetic resin molded body, the adhesion of the adhesive surface There is a problem that the strength is weak and the backing sheet is more easily peeled off than the synthetic resin molded body.

The present invention has been made in order to improve the conventional problems, and by increasing the adhesive strength between the mount and the synthetic resin molded body, the flea is such that the mount does not easily peel off from the synthetic resin molded body. It is intended to provide a blister package for a bird's collar .

[0005]

In order to achieve the above object, the invention according to claim 1 is provided with a lid 2 made of a thermoplastic synthetic resin molding having a gas barrier property, and is not provided with an adhesive-processed paperboard 1a. Gas barrier layer 1 between the treated paperboard 1c
The lid 1 is provided with a plurality of layers of mount 1 on which b is formed.
Flea removal collar is stored inside 2 and flea removal collar is stored
Glue the lid 2 to the mount 1 and store the flea removal collar.
Flea collar for sealing the opening 2a of the lid 2 in the closed state
It is a blister package .

In order to achieve the above object, the invention according to claim 2 relates to a flea removing collar housed inside the lid body 2.
Impregnated with triethyl phosphate as a vaporizable plasticizer
It is a blister package for fleas and collars .

[0007]

[Operation] With the above structure, the adhesive strength is significantly improved compared to the conventional aluminum foil bonded to the thermoplastic synthetic resin molding, and it is almost equivalent to the one using aluminum foil by the gas barrier layer of the mount. Gas barrier property can be obtained.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a blister packaging body for flea removal collars , and FIG. 2 is an enlarged cross-sectional view of a mount. In the figure, 1 is a mount, and 2 is a lid formed of a thermoplastic synthetic resin.

The mount 1 has a three-layer structure in which a gas barrier layer 1b is laminated between a paperboard 1a and a paperboard 1c.

The paperboards 1a and 1c used for the mount 1.
Is formed of, for example, coated cardboard, cart paper, or Manila cardboard, each having a thickness of 1000 g / m ²
The following are used: This is because if the thickness is more than this, the cost will increase and gas may leak from the interlayer of the paperboard 1a itself, which may impair the gas barrier property.

The material used for the gas barrier layer 1b is a metal or resin such as aluminum or polyethylene terephthalate, or a material obtained by vapor deposition of aluminum, silica, alumina or the like and has a thickness of 0.01 to 100.
μm, preferably 0.05 to 50 μm. If the thickness is 0.01 μm or less, pinholes are likely to be formed, and the purpose of gas barrier property may not be achieved.
In the above, the thickness is too large to fulfill the purpose of gas barrier property, which causes a cost increase.

On the other hand, between the paperboard 1a and the gas barrier layer 1b,
Alternatively, by interposing an adhesive such as vinyl acetate resin, ethylene-vinyl acetate copolymer resin, or acrylic resin as an adhesive between the paperboard 1c and the gas barrier layer 1b, and adhering them, The mount 1 having a three-layer structure is configured.

As the thermoplastic synthetic resin used for the lid body 2, for example, a resin having gas barrier property and excellent transparency such as polyethylene terephthalate, polyethylene resin or polycarbonate resin is used. It is formed in a substantially reverse concave shape having an opening 2a on the lower surface so that the contents 3 can be stored therein.

The mount 2 is adhered to the opening 2a of the lid 2 by using an adhesive made of a polyolefin synthetic resin so that the opening 2a of the lid 2 is sealed.

[0015] In addition, the contents of 3 to be stored in the lid 2 is a flea collar. The drug contained therein include triethyl phosphate. Next, the fleas of this invention
An example using a blister package for a collar will be described.
It is not limited to these.

(Example 1) As an example, a flea removing collar was packaged in a blister package of the present invention, and the time course of the drug remaining rate when stored was examined. The flea-removing collar used in the test was prepared by impregnating the collar resin with triethyl phosphate as an evaporative plasticizer in order to efficiently exude the active ingredient, which is difficult to exude on its own, to the collar resin surface. It is a mechanism that the active ingredient exudes on the surface of the collar resin as it volatilizes. Therefore, in order to prevent the active ingredient from seeping out under the storage conditions before opening the package, a package having a gas barrier property for preventing volatilization of triethyl phosphate is required. Also, if stored in a packaging form that does not have gas barrier properties, the active ingredient will seep out during storage,
Not only the desired effect is not obtained at the time of use, but since the medicine oozes out in the package, discoloration of the collar body and stickiness in the package occur, resulting in a problem of impairing the commercial property.

[0017] Therefore for flea collars blister <br/> over package of the invention determine can solve the above problems, packaging the flea collars flea collars blister package of the present invention, 60 ° C. Table 1 shows the results of examining the change over time in the residual rate of triethyl phosphate in the collar resin when stored under conditions. At the same time, Table 2 shows the results of evaluation of stickiness in the package.

[0018]

[Table 1]

[0019]

[Table 2]

The blister package used in this test was 4
A coated cardboard 00g / m ^2, between the coated cardboard 127.9 g / m ² of an adhesive is applied to the polyolefin for bonding with a thermoplastic synthetic resin molded body on one side, 7 [mu] m is a gas barrier layer Using a mount having aluminum foil laminated with an emulsion adhesive of an acrylic resin, a polyethylene terephthalate molded body was thermally bonded as a thermoplastic synthetic resin molded body. As a blank
It was used after being packed in an aluminum bag and stored at 5 ° C. Further, as a comparative control, it was compared with that stored in a blister package in which a board not laminated with aluminum was used as a mount.

From the above tests, as shown in Tables 1 and 2, it was confirmed that the blister package of the present invention has the same excellent gas barrier property as the blank.

(Example 2) Adhesion of a flea-taking collar blister package similar to that used in Example 1 and an aluminum foil directly fused with a thermoplastic synthetic resin molding The results of examining the difference in strength are shown in Table 3. The content of 50 g was packed in 100 packages, and the peeling of the thermoplastic synthetic resin molded product from the mount was confirmed when the contents were transported about 1500 km.

[0023]

[Table 3]

As shown in Table 3 above, the conventional one in which the thermoplastic synthetic resin molding was directly welded to the aluminum foil showed peeling of 26 out of 100 pieces, whereas the chisel of the present invention was removed. The number of peeled blister packages for collars was zero. From the above results, it was confirmed that the adhesive strength of the flea-harvest collar blister package of the present invention was significantly improved.

Example 3 A leak tester was used as a method for inspecting the gas barrier property of the flea collecting collar blister package of the present invention. For the test, a package similar to that used in Examples 1 and 2 was used. Leak tester puts the inspection product in the inspection chamber, sucks or pressurizes to a vacuum degree set according to the inspection product strength, and directly detects pressure fluctuations in the inspection chamber due to leakage of the inspection product with the leak sensor. It is a method. Therefore, when the inspection product does not have a gas barrier property or has a pinhole or the like, the gas in the inspection product leaks into the inspection chamber, so that the pressure in the chamber rises. Table 4 shows the results of inspecting the gas barrier property of the blister package for flea collars of the present invention using this method.

[0026]

[Table 4]

From the results of Table 4, the flea-removing collar of the present invention
It was found that the blister package for use had a leak value of 20 mmH ₂ O or less and had gas barrier properties. Since the conventional one, in which the thermoplastic synthetic resin molded product is directly welded to the aluminum foil, has a weak adhesive strength, the thermoplastic synthetic resin molded product is directly peeled off from the backing sheet when sucked in the inspection chamber, which makes measurement impossible. It was possible.

[0028]

As described in detail above, according to the present invention, since the paperboard of the mount for sealing the opening of the lid is adhered to the lid by the adhesive, it is more adhesive than the conventional aluminum foil. Strength is dramatically improved. Thus for backing from the lid is hardly peeled off, the agents of flea collars are or volatilize a contents housed in the lid body, flea neck
The shape of the ring can be prevented from leaking, the odor can be prevented from changing, and the gas barrier layer provided on the mount provides high gas barrier properties.
It is also possible to solve the problem that the active ingredient of the flea removal collar oozes out and the desired effect is not obtained during use.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a flea removing collar blister package according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a mount used for a package.

[Explanation of symbols]

1 ... Mount, 1a, 1c ... Paperboard, 1b ... Gas barrier layer, 2
... Lid, 2a ... Opening, 3 ... Contents.

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 75/36

Claims (2)

(57) [Claims] 1. A paperboard 1 which is provided with a lid 2 made of a thermoplastic synthetic resin molding having gas barrier properties and which has been subjected to an adhesion process.
The inside of the lid 2 is provided with a plurality of layers of mount 1 having a gas barrier layer 1b formed between a and an untreated paperboard 1c.
The fleet-removing collar is stored in the lid, and the fleet-removing collar is stored in the lid
Adhere 2 to the backing paper 1, and in the state where the chisel removal collar is stored.
A chisel characterized in that the opening 2a of the lid 2 is sealed.
A blister package for a collar . 2. A flea-removing collar to be stored inside the lid 2.
Impregnated with triethyl phosphate as a transpiration plasticizer
The blister package for flea collar according to claim 1, wherein