JP6188378B2 - Filling container and manufacturing method thereof - Google Patents

Description

 The present invention relates to a filling container used for filling jelly and the like and a method for producing the same.

A granule containing a branched chain amino acid as an active ingredient has a large intake at one time and is difficult to take compared to a general preparation. In addition, the granule may be pinched between the teeth in the mouth at the time of ingestion or difficult to swallow. Therefore, the granule is a problematic preparation from the viewpoint of ingestion, particularly for the elderly.
Therefore, in order to solve such problems relating to ingestion, jelly containing a branched chain amino acid is known as a preparation containing a branched chain amino acid as an active ingredient. The jelly containing this branched chain amino acid was filled in a bite-sized cup-shaped container, a packaging material (member serving as a container lid) was welded to the opening of the container, and the opening was sealed with the packaging material. Sold in state.

 Conventionally, the container is made of polypropylene, and the packaging material is made of a base material and a sealing layer made of polyethylene laminated on a surface disposed on the container side of the base material (for example, (See Patent Documents 1 and 2).

JP 2011-93315 A JP 2012-17117 A

When filling and sealing jelly or the like in the container using the container and packaging material as described above, when the packaging material is peeled off and the container is opened, a part of the inner surface (container side) of the packaging material The phenomenon that jelly etc. adhered or the film | membrane which consists of jelly etc. in a container was confirmed was confirmed.
Further, when the packaging material is welded to the container, if conditions such as temperature and pressure are not appropriate, wrinkles may be generated at the welding portion of the packaging material, or the packaging material may be difficult to peel off. Specifically, when the temperature at which the packaging material is welded to the container is too high, wrinkles are generated in the welded portion, pinholes are generated in the welded portion, and the packaging material may be difficult to peel off. On the other hand, when the temperature at the time of welding a packaging material with respect to a container is too low, a defect will generate | occur | produce by the bag breakage inspection performed in the state which welded the packaging material to the container.

 The present invention has been made in view of the above circumstances, and is excellent in adhesion of the packaging material to the container without adhering jelly or the like to the inner surface (container side) of the packaging material. An object of the present invention is to provide a filled container excellent in peelability of a packaging material and a method for producing the same.

That is, this invention provides the filling container of the following [1]-[6], and its manufacturing method.
[1] A cup-shaped container and a film-shaped packaging material welded to the flange portion of the container, the packaging material being disposed on a surface of the base material and the container on the container side A sealing layer laminated, and the sealing layer includes a resin layer and a water-repellent processed resin layer provided on a surface side of the resin layer disposed on the container side. The wrapping material and the heel part are surrounded by a groove-shaped ring seal formed on the wrapping material along the inner edge of the heel part, and surround the ring seal, and are spaced from the outer edge side of the heel part. Are welded at a number of point-like point seals formed by placing the resin layer and the flange portion at the ring seal and the point seal, and the water-repellent processed resin layer is: A region corresponding to the ring seal and a region corresponding to the point seal in the sealing layer. The amount of child filling container, characterized in that less than the amount of the particles in the region other than the region corresponding to the region and the point seal than corresponding to the ring seal region.
[2] The filling container according to [1], wherein the resin layer has a thickness of 15 μm or more.
[3] The filling container according to [1] or [2], wherein the resin layer includes polyethylene.
[4] The method for producing a filled container according to [1] to [3], wherein the packaging material is thermocompression bonded to the flange at a temperature of 120 to 185 ° C. to form the point seal. A method for producing a filled container, comprising:
[5] A method for producing a filled container according to [1] to [3], wherein the packaging material is thermocompression bonded to the flange at a temperature of 165 to 230 ° C. to form the ring seal. A method for producing a filled container, comprising:
[6] The method for producing a filled container according to [1] to [3], wherein the packaging material is thermocompression bonded to the flange at a temperature of 120 to 185 ° C. to form the point seal. And a step of thermocompression bonding the packaging material to the collar at a temperature of 165 to 230 ° C. to form the ring seal.

 According to the present invention, it is possible to obtain a filled container that is excellent in adhesion of the packaging material to the container and excellent in releasability of the packaging material from the container without jelly adhering to the inner surface of the packaging material.

It is the schematic which shows 1st embodiment of the filling container of this invention, (a) is a perspective view, (b) is sectional drawing which follows the AA line of (a). It is a schematic sectional drawing which shows the packaging material in 1st embodiment of the filling container of this invention. It is a schematic sectional drawing which shows 1st embodiment of the manufacturing method of the filling container of this invention. It is a schematic sectional drawing which shows the packaging material in 2nd embodiment of the filling container of this invention. It is a schematic sectional drawing which shows 2nd embodiment of the manufacturing method of the filling container of this invention.

Embodiments of the filling container and the manufacturing method thereof according to the present invention will be described.
Note that this embodiment is specifically described in order to better understand the gist of the invention, and does not limit the present invention unless otherwise specified.

(1) First embodiment [filling container]
1A and 1B are schematic views showing a first embodiment of a filling container of the present invention, in which FIG. 1A is a perspective view and FIG. 1B is a cross-sectional view taken along line AA of FIG. FIG. 2 is a schematic cross-sectional view showing the packaging material in the first embodiment of the filling container of the present invention.
The filling container 10 of the present embodiment is roughly configured from a cup-shaped container 20 and a film-shaped packaging material 30 welded to the container 20.

The container 20 is generally configured by a container main body 21 filled with a jelly 40 and the like, and a flange-shaped flange 22 integrally provided at the open end of the container main body 21 over the entire circumference thereof.
That is, the packaging material 30 covers the opening 23 of the container 20, and its outer edge is welded to the flange 22 of the container 20.
The material of the container 20 is not particularly limited, and examples thereof include thermoplastic resins. For example, polypropylene is preferable.

As shown in FIG. 2, the packaging material 30 includes a base material 31 and a sealing layer 32 laminated on a surface (hereinafter referred to as “one surface”) 31 a disposed on the container 20 side of the base material 31. And in the form of a film.
The sealing layer 32 includes a resin layer 33 and a water-repellent resin layer provided on the surface of the resin layer 33 on the container 20 side (hereinafter referred to as “one surface”) 33a. 34.
The material of the resin layer 33 is not particularly limited, and may be a thermoplastic resin. For example, polyethylene is preferable.

 The packaging material 30 and the flange portion 22 of the container 20 include a groove-shaped ring seal 35 formed continuously from the packaging material 30 along the inner edge (edge on the opening 23 side) of the flange portion 22, and a ring. It is welded to a large number of point-like point seals 36 that surround the seal 35 and are formed at intervals on the outer edge side of the flange portion 22. And in the ring seal 35 and the point seal 36, the resin layer 33 which comprises the sealing layer 32 of the packaging material 30 and the collar part 22 of the container 20 are welded directly. That is, in the ring seal 35 and the point seal 36, the resin layer 33 and the resin layer 33 of the packaging material 30 are not interposed between the resin layer 33 of the packaging material 30 and the flange portion 22 of the container 20. The flange portion 22 made of polypropylene is directly welded (adhered).

The base material 31 is not particularly limited and is appropriately adjusted according to the type of the jelly 40 filled in the container 20. For example, the outermost layer of the packaging material 30 (the packaging material 30 is used as the container 20). In this case, a film-like base material in which a layer made of polyethylene phthalate, a layer made of aluminum, and a layer made of nylon are laminated in this order from the outermost layer when they are welded to each other.
Moreover, the thickness of the base material 31 and the thickness of each layer constituting the base material 31 are appropriately adjusted according to the type of jelly 40 filled in the container 20.

The thickness of the resin layer 33 constituting the sealing layer 32 is preferably 15 μm or more, more preferably 15 μm or more and 100 μm or less, and particularly preferably 50 μm to 65 μm.
If the thickness of the resin layer 33 is less than 15 μm, the resin layer 33 and the flange portion 22 may not be sufficiently adhered when attempting to weld the packaging material 30 to the flange portion 22 of the container 20.

The water-repellent processed resin layer 34 constituting the sealing layer 32 of the packaging material 30 is a layer having silica (silicon dioxide, SiO ₂ ) particles 37 and a binder 38 for bonding them.
The silica particles are not particularly limited, and for example, those having an average particle diameter of 0.5 μm to 100 μm are preferable.

 The filling container 10 of the present embodiment has excellent adhesion of the packaging material 30 to the container 20 without the jelly 40 adhering to the inner surface 30a of the packaging material 30 (the container 20 side), and the packaging from the container 20 The peelability of the material 30 is excellent.

[Manufacturing method of filled container]
With reference to FIGS. 1-3, the manufacturing method of the filling container 10 of this embodiment is demonstrated.
First, a predetermined amount of jelly 40 or the like is filled in the cup-shaped container 20.
Next, the packaging material 30 is disposed on the flange portion 22 of the container 20 so as to cover the opening 23 of the container 20.

Next, the packaging material 30 is pressure-bonded to the flange portion 22 of the container 20 using a pressing member provided with a large number of point-like projections spaced apart, and the pressure-bonded portion is heated. That is, the packaging material 30 is thermocompression bonded to the collar portion 22 to form the point seal 36, and the filling container 10 is obtained.
In this step, the pressure at which the packaging material 30 is pressure bonded to the flange 22 is preferably 0.5 MPa or more.

 Moreover, in this process, the temperature which heats a crimping | compression-bonding part is 120-185 degreeC, and it is preferable that it is 140-165 degreeC.

By this step, the resin layer 33 constituting the sealing layer 32 of the packaging material 30 and the flange portion 22 of the container 20 are directly welded at the point seal 36.
At this time, as shown in FIG. 3, when the packaging material 30 is thermocompression bonded to the collar portion 22 (when thermocompression bonding is performed by applying pressure in the direction of arrow α in FIG. 3), the point seal 36 is water-repellent. The direction of the resin layer 34 along the one surface 31a of the base material 31 (the direction of arrow β in FIG. 3), that is, the point seal 36 centering on the point seal 36 and along the one surface 31a of the base material 31. The water-repellent processed resin layer 34 is hardly interposed between the resin layer 33 of the packaging material 30 and the flange portion 22 of the container 20, so that the resin layer 33 and the flange portion 22 are separated. And are directly welded (adhered).

Next, the packaging material 30 is pressure-bonded to the flange portion 22 of the container 20 using an annular (ring-shaped) pressing member, and the pressure-bonded portion is heated. That is, the packaging material 30 is thermocompression bonded to the collar portion 22 to form the ring seal 35.
In this step, the pressure at which the packaging material 30 is pressure bonded to the flange 22 is preferably 0.5 MPa or more.

 Moreover, in this process, the temperature which heats a crimping | compression-bonding part is 165-230 degreeC, and it is preferable that it is 185-210 degreeC.

By this step, in the ring seal 35, the resin layer 33 constituting the sealing layer 32 of the packaging material 30 and the collar portion 22 of the container 20 are directly welded.
At this time, as shown in FIG. 3, when the packaging material 30 is thermocompression bonded to the flange portion 22 (when thermocompression bonding is performed by applying pressure in the direction of arrow α in FIG. 3), the ring seal 35 has a water repellent finish. The direction of the resin layer 34 along the one surface 31a of the base material 31 (the direction of the arrow β in FIG. 3), that is, the ring seal 35 centering on the ring seal 35 and along the one surface 31a of the base material 31. The water-repellent processed resin layer 34 is hardly interposed between the resin layer 33 of the packaging material 30 and the flange portion 22 of the container 20, so that the resin layer 33 and the flange portion 22 are separated. And are directly welded (adhered).

 According to the manufacturing method of the filling container of the present embodiment, the packaging material 30 can be sufficiently adhered to the container 20 without causing wrinkles in the ring seal 35 and the point seal 36 of the packaging material 30. Moreover, since the packaging material 30 does not become hard, the packaging material 30 after welding to the container 20 can be made easy to peel.

(2) Second embodiment [filling container]
With reference to FIG. 1 and FIG. 4, 2nd embodiment of the filling container of this invention is described. FIG. 4 is a schematic cross-sectional view showing a packaging material in the second embodiment of the filling container of the present invention.
The difference between the filling container of the present embodiment and the filling container of the first embodiment is the structure of the packaging material.
As shown in FIG. 4, the packaging material 30 is a film having a base material 31 and a sealing layer 32 laminated on one surface 31 a of the base material 31.
The sealing layer 32 is a layer having a resin layer 33 and a water-repellent processed resin layer 34 provided on the one surface 33 a side of the resin layer 33. Furthermore, the resin layer 33 is a layer formed by laminating a first resin layer 33A and a second resin layer 33B in order from the substrate 31 side.
The material of the first resin layer 33A and the second resin layer 33B is not particularly limited, and may be a thermoplastic resin, for example, polyethylene is preferable.

 Also in the filling container of this embodiment, the effect similar to the above-mentioned 1st embodiment is acquired.

[Manufacturing method of filled container]
With reference to FIG. 1, FIG. 4, and FIG. 5, the manufacturing method of the filling container of this embodiment is demonstrated.
The manufacturing method of the filling container of this embodiment is performed similarly to the above-mentioned 1st embodiment.

In the step of forming the point seal 36, the first resin layer 33 </ b> A constituting the sealing layer 32 of the packaging material 30 and the flange portion 22 of the container 20 are directly welded in the point seal 36.
At this time, as shown in FIG. 5, when the packaging material 30 is thermocompression bonded to the flange portion 22 (when thermocompression is applied by applying pressure in the direction of the arrow α in FIG. 5), the point seal 36 is water-repellent. Direction along the one surface 31a of the substrate 31 (in the direction of arrow β in FIG. 5), that is, the second resin layer 33B provided with the water-repellent processed resin layer 34, that is, the arrow β in FIG. The first resin layer 33A of the packaging material 30 and the flange portion 22 of the container 20 are shifted in the direction away from the point seal 36 along the one surface 31a of the base 31 with the point seal 36 as the center. In between, the water-repellent processed resin layer 34 and the second resin layer 33B are hardly interposed, and the first resin layer 33A and the flange portion 22 are directly welded (adhered).

In the step of forming the ring seal 35, the first resin layer 33 </ b> A constituting the sealing layer 32 of the packaging material 30 and the flange portion 22 of the container 20 are directly welded in the ring seal 35.
At this time, as shown in FIG. 5, when the packaging material 30 is thermocompression bonded to the collar portion 22 (when thermocompression bonding is performed by applying pressure in the direction of arrow α in FIG. 5) Direction along the one surface 31a of the substrate 31 (in the direction of arrow β in FIG. 5), that is, the second resin layer 33B provided with the water-repellent processed resin layer 34, that is, the arrow β in FIG. The first resin layer 33A of the packaging material 30 and the flange portion 22 of the container 20 are shifted in the direction away from the ring seal 35 along the one surface 31a of the base material 31 with the ring seal 35 as the center. In between, the water-repellent processed resin layer 34 and the second resin layer 33B are hardly interposed, and the first resin layer 33A and the flange portion 22 are directly welded (adhered).

 Also in the manufacturing method of the filling container of this embodiment, the effect similar to the above-mentioned 1st embodiment is acquired.

 Hereinafter, the present invention will be described more specifically with experimental examples, but the present invention is not limited to the following experimental examples.

[Experimental Examples 1 to 24]
Using the packaging materials shown in Tables 1 to 4, each packaging material was thermocompression bonded to a cup-shaped container made of polypropylene to produce a filled container.
As shown in Tables 1 to 4, the temperature and pressure were changed, and the packaging material was thermocompression bonded to the container. The pressure when forming the ring seal and the pressure when forming the point seal were made equal.
In Tables 1 to 4, “PET” is a layer made of polyethylene phthalate, “AL” is a layer made of aluminum, “NY” is a layer made of nylon, “EX-PE” is a layer made of polyethylene extruded, “PE” "Means a layer made of polyethylene in which a water-repellent resin layer is provided on the surface side disposed on the container side.

"Pressure test"
About the filling container obtained in Experimental Examples 1-24, the pressure | voltage resistance test | inspection was performed with the following method, and the number of bag breaking of the filling container with respect to the test | inspection number (total number) was confirmed. The results are shown in Tables 1-4.
In addition, the pressure | voltage resistant test | inspection applied the fixed pressure over the specified time at an angle of 90 degrees with respect to the upper surface of the packaging material, and confirmed the presence or absence of the bag breakage of the filling container.

"Peelability inspection"
About the filling container obtained in Experimental Examples 1-24, the peelability (ease of peeling) of the packaging material from a container was test | inspected with the following method. The results are shown in Tables 1-4.
The peelability test is performed by applying a load from the end of the welding surface of the packaging material (the surface of the packaging material that is welded to the container by the ring seal and the point seal), and the welding surface of the container (the ring of the container). The strength when the packaging material peels from the surface welded to the packaging material by the seal and the point seal was subjected to sensory evaluation.

From the results of Table 1, in PET16 / AL9 / NY15 / EX-PE15 / PE35, the pressure at the time of thermocompression bonding is 0.5 MPa, the temperature at which the ring seal is formed is 185 to 195 ° C., and the point seal is formed. When the temperature was 140 to 150 ° C., good results were obtained in the pressure resistance test and the peelability test.
Moreover, from the results of Table 2, in PET16 / AL9 / NY15 / EX-PE20 / PE35, the pressure at the time of thermocompression bonding is 0.5 MPa, the temperature at the time of forming the ring seal is 185 to 200 ° C., and a point seal is formed. In the case where the temperature during the treatment was 140 to 150 ° C., good results were obtained in the pressure resistance test and the peelability test.
Moreover, from the results of Table 3, in PET16 / AL9 / NY15 / EX-PE30 / PE35, the pressure at the time of thermocompression bonding is 0.5 MPa, the temperature at the time of forming the ring seal is 185 to 200 ° C., and a point seal is formed. In the case where the temperature during the treatment was 140 to 150 ° C., good results were obtained in the pressure resistance test and the peelability test.
From the results of Table 4, in PET16 / AL9 / NY15 / PE50, the pressure at the time of thermocompression bonding is 0.5 MPa, the temperature at the time of forming the ring seal is 185 to 200 ° C., the temperature at the time of forming the point seal Even in the case of 140 to 155 ° C., good results were not obtained in the pressure resistance test and the peelability test.

 The filled container of the present invention has excellent adhesion of the packaging material to the container without adhering jelly or the like to the inner surface of the packaging material, and is excellent in peelability of the packaging material from the container. It is suitable for filling a jelly containing an amino acid.

DESCRIPTION OF SYMBOLS 10 ... Filling container, 20 ... Container, 21 ... Container main body, 22 ... Gutter part, 23 ... Opening part, 30 ... Packaging material, 31 ... Base material, 32. ..Sealing layer 33 ... resin layer 33A ... first resin layer 33B ... second resin layer 34 ... water repellent resin layer 35 ... ring Seal, 36 ... dot seal, 37 ... silica particles, 38 ... binder, 40 ... jelly.

Claims (6)

A cup-shaped container, and a film-shaped packaging material welded to the buttocks of the container,
The packaging material has a base material, and a sealing layer laminated on the surface of the base material disposed on the container side,
The sealing layer has a resin layer and a water-repellent processed resin layer provided on the surface side of the resin layer disposed on the container side,
The wrapping material and the flange portion surround the ring seal with a groove-shaped ring seal formed continuously on the wrapping material along the inner edge of the flange portion, and are spaced from the outer edge side of the flange portion. Welded with a number of point-shaped point seals formed
In the ring seal and the point seal, the resin layer and the flange portion are welded ,
The water-repellent resin layer includes particles,
The amount of the particles in the region corresponding to the ring seal and the region corresponding to the point seal in the sealing layer is the region other than the region corresponding to the ring seal and the region other than the region corresponding to the point seal. A filled container characterized by being less than the amount of particles .   The filled container according to claim 1, wherein the resin layer has a thickness of 15 μm or more.   The filling container according to claim 1, wherein the resin layer includes polyethylene. It is a manufacturing method of a filling container given in any 1 paragraph of Claims 1-3,
A method for producing a filled container, comprising a step of thermocompression bonding the packaging material to the collar at a temperature of 120 to 185 ° C. to form the point seal. It is a manufacturing method of a filling container given in any 1 paragraph of Claims 1-3,
A method for producing a filled container, comprising a step of thermocompression bonding the packaging material to the flange at a temperature of 165 to 230 ° C. to form the ring seal. It is a manufacturing method of a filling container given in any 1 paragraph of Claims 1-3,
A step of thermocompression-bonding the packaging material to the flange at a temperature of 120 to 185 ° C. to form the point seal;
And a step of thermocompression-bonding the packaging material to the flange at a temperature of 165 to 230 ° C. to form the ring seal.

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