JP7134683B2 - refillable container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a refillable container for storing toiletries such as shampoo, conditioner, liquid detergent, and softener, and foods such as edible oil, sauce, and instant coffee.

Containers for storing toiletries such as liquid detergents and softeners, and foods such as edible oil and instant coffee use dedicated dispensing containers with easy-to-use shapes, such as plastic bottles and glass bottles. These pouring containers are rigidly constructed and therefore expensive, and some containers are designed to be used repeatedly when the contents are exhausted. Therefore, refill pouches for refilling such pouring containers are sold separately.

However, since these pouring containers are exclusively designed so that the contents can be easily poured out, they have not necessarily taken into consideration the convenience of the refilling operation of replenishing the contents from the refilling pouch.

Conventionally, as a refill pouch for storing fluid contents such as liquid, it is possible to easily and safely refill the contents into a dedicated container, and at the same time, it is inexpensive and the empty bag is not bulky. It is desirable that disposal can be easily carried out, and from this point of view, pouches with spouts, in which a spout of narrow width is provided by heat-sealing part of the upper part of the bag, have come into wide use.

However, such pouches have a common drawback, which is that the width of the pouring portion is narrow, so that the opening of the pouring portion is poor when the pouch is opened. In addition, even if it is opened, the pouring portion is made of the same flexible material as the bag body, so it is inferior in rigidity, and the pouring port that is opened in the middle of pouring is likely to be clogged. It is difficult to insert the spout into the spout. Furthermore, depending on the content, the front and back laminated films approach each other and close, depending on the contents, and the flow of the contents to the outlet is partially blocked at this part. There was a problem that it was hindered and it became difficult to pour out the contents, especially in the latter half of pouring. In particular, in the case of contents such as viscous liquid detergents and cosmetics, there is a problem that it is more difficult to pour out the contents, and the pouring part of the pouch tends to come off from the filling port of the pouring container.

As a method for improving these, in Patent Document 1,
In a part of a rectangular cylindrical paper container for refilling, a pour spout forming part is formed by a paper fragile part formed by an opening or a cut line perforated in the base material layer, and the spout forming part is formed at the mouth of the container to be refilled. A paper container for refilling is proposed, in which a pouring spout is formed by pressing the spout-forming portion against a part and breaking the spout-forming portion so that contents can be refilled directly from the spout.

Since this refillable paper container is a paper container, it has low rigidity, and there is a problem that it becomes difficult to hold, especially when the content is reduced. At the same time, the spout tends to open wider due to the piercing, and there is a risk that the contents will leak and become dirty along the outer periphery of the spout of the refill destination container and the entire surface of the refillable paper container having the spout. there were.

JP 2014-133579 A

Accordingly, it is an object of the present invention to provide a refillable container whose opening has a size suitable for the pouring tube of the pouring container when refilling the contents, and which prevents the contents from leaking during the refilling.

The refill container according to claim 1 of the present invention is
A pouring container comprising a pouring tube having an opening and an outer tube consisting of a peripheral wall forming a flow path connected to the opening around the pouring tube, and having a storage space for containing contents therein, A refill container that refills the storage space with contents through the pouring cylinder,
a container body having an accommodating portion for accommodating contents and an opening;
a cover member that covers the opening, is composed of at least a base material and a sealant layer, and has a planned opening portion that can be opened by pushing and breaking the pouring cylinder of the pouring container;
A peripheral edge portion that can be fitted around the opening, and a pouring tube guide opening that allows the pouring tube of the pouring container to reach the intended opening portion above the lid member are formed. an overcap having an outer surface ;
The overcap includes a cap sidewall that is provided on the peripheral edge of the overcap and protrudes downward, a contact protrusion that is provided in front of the peripheral edge of the outer surface of the overcap and contacts the lid member, and an inner surface of the cap sidewall. and a locking claw that is provided and locked to the opening of the container body,
The overcap is fitted to the upper part of the container body in which the contents are stored in the storage part and the lid member is sealed with a seal,
A refillable container characterized by:

According to the present invention, the pouring tube guide opening is composed of a lid member having a planned opening portion that can be opened by pushing and breaking the pouring tube of the pouring container in the refill container, and a peripheral edge portion that can be fitted around the opening. By providing an overcap having a top surface with a part formed thereon, when the refill container is tilted and pulled out from the pouring container, the contents do not leak out, so that the surroundings are less likely to get dirty.

The refill container according to claim 2 of the present invention is the refill container according to claim 1, wherein the scheduled opening portion comprises an easy-to-open processed portion that can be pushed and broken by the pouring tube of the pouring container. is a container.

According to this invention, since the easy-to-open processed portion that can be pushed and broken is formed in the lid material of the refill container, the pouring tube of the pouring container can easily push and tear, and the outside diameter of the pouring tube is large. The contents are not leaked from the periphery of the opening by opening together.

In the refill container according to claim 3 of the present invention, the easy-to-open processed part is formed of a half-cut line forming an opening shape into which the pouring tube can be inserted and removed. It is a refillable container.

According to this invention, the intended opening portion can be formed in the cover material of the refill container by the half-cut line that forms the shape of the opening into which the pouring cylinder can be inserted and removed. Therefore, when the pouring tube is inserted into the opening of the lid member, it can be easily pushed to open, and can be removed and inserted.

The refill container according to claim 4 of the present invention is characterized in that the inner diameter of the edge of the pouring tube guide opening is larger than the outer diameter of the pouring tube. A refillable container as described.

According to this invention, since the edge inner diameter of the pouring tube guide opening is larger than the outer diameter of the pouring tube,
The pouring tube can be inserted into the pouring tube guide opening without difficulty, and the pouring tube can be pushed into the intended opening portion of the lid material to break it.

The refill container according to claim 5 of the present invention is characterized in that the edge outer diameter of the pouring tube guiding opening is smaller than the outer tube of the pouring container. It is a refillable container according to .

According to this invention, even if the pouring tube is stuck into the pouring tube guide opening and the contents leak from the peripheral edge of the pouring tube guide opening, the outer diameter of the edge of the pouring tube guide opening is the same as the above. Since it is smaller than the outer cylinder of the pouring container, the contents flow into the pouring container through the inner surface of the outer cylinder and do not leak to the outside.

The refillable container according to claim 6 of the present invention is characterized in that the pouring tube guide opening comprises a cut-out portion and a cut-out portion having a partially uncut portion. A refillable container according to any one of the above.

According to this invention, since the pouring tube guide opening of the overcap is made of a cut-out portion or a notched portion having a partially uncut portion, the pouring tube is inserted into the pouring tube guide opening. Alternatively, the lid can be reached through the spout guide opening by simply pushing.
Therefore, the lid member can be protected when not in use.

In the refill container according to claim 7 of the present invention, the length between the upper surface of the lid member and the outer surface of the overcap is the distance between the tip of the pouring tube of the pouring container and the upper end of the outer tube. A refill container according to any one of claims 1 to 6, characterized in that the length is equal to or less than the length.

According to this invention, the tip of the pouring tube sticks into the pouring tube guide opening and the tip of the pouring tube hits the lid member before the outer tube comes into contact with the outer surface of the overcap on the periphery of the pouring tube guide opening. Since the intended opening portion can be reached, the lid member can be reliably opened.

The refillable container according to claim 8 of the present invention is the refillable container according to any one of claims 1 to 7, characterized in that a part or the whole of the container body allows the contents to be seen through.

According to this invention, since the remaining amount of contents in the refilling container can be clearly seen, it is possible to confirm whether the contents are sufficiently refilled and the refilling state, so that the timing of removing the refilling container can be easily determined.

The refillable container according to claim 9 of the present invention is the refillable container according to any one of claims 1 to 8, wherein the sealant layer has a thickness of 20 μm or more and 100 μm or less.

According to this invention, since the lid material can be reliably fused to the opening of the refill container body, there is no problem that the content leaks due to peeling at the periphery of the fused portion when the base material is pushed and broken by the pouring cylinder. It does not occur and the contents can be refilled stably.

The refill container of the present invention has a lid member having a scheduled opening portion that can be opened by pushing and breaking the pouring tube of the pouring container, and a pouring tube guide opening made up of a peripheral edge that can be fitted around the opening. By providing an overcap having a formed outer surface, when the refill container is tilted and the refill container is pulled out from the pouring container, the contents do not leak out, so that the surroundings are less likely to get dirty.

1 is an external perspective view of a refill container and a pouring container to be refilled according to the first embodiment of the present invention; FIG. FIG. 10 is an external perspective view of a refill container according to a second embodiment of the present invention; FIG. 2 is a plan view and a vertical cross-sectional view in the vicinity of the pouring tube of the pouring container filled with the refillable container of the present invention. FIG. 4 is a vertical cross-sectional view showing the details of the vicinity of the opening of the refill container in the first embodiment of the present invention and the vicinity of the push-to-break vicinity of the pouring tube of the pouring container to be refilled. FIG. 10 is a vertical cross-sectional view showing details of the vicinity of the opening of the refill container in the second embodiment of the present invention; Fig. 2 is a vertical cross-sectional view showing a state in which the pouring container is filled with the refilling container in the first embodiment of the present invention; FIG. 10 is a vertical cross-sectional view showing a state in which the pouring container is filled with the refilling container in the second embodiment of the present invention; Fig. 2 is a vertical cross-sectional view showing an embodiment in which the pouring tube guide opening of the overcap is an opening that can be easily opened by an easy-to-open processed portion in the refill container according to the first embodiment of the present invention; Fig. 10 is a vertical cross-sectional view showing an embodiment in which the pouring tube guide opening of the overcap is an opening that can be easily opened by the easy-opening processed portion in the refill container according to the second embodiment of the present invention; FIG. 2 is a plan view of the first embodiment of the refill container of the present invention, showing a state in which the pouring tube guiding opening of the overcap is open and a state in which the overcap is removed. A plan view showing an embodiment of the refill container of the present invention, which has an overcap without an easy-to-open opening plate of the pouring tube guide opening, and the intended opening portion of the lid material is formed by half-cut lines radially provided from the center. It is a diagram. FIG. 10 is a plan view showing various embodiments of the intended opening portion of the lid member in the refillable container of the present invention.

Hereinafter, embodiments of the refillable container of the present invention will be described with reference to the drawings.
The refillable container 1 of FIG. 1-1 is a first embodiment of a container used for filling a pouring container 2 having a pouring portion as shown in FIG. 1-2 with contents for the purpose of refilling. be.

This pouring container 2 comprises a pouring tube 21 having an inclined spout, and an outer tube 22 consisting of a peripheral wall provided via a flow path for returning the contents around the pouring tube 21. It is a pouring container 2 that can be used.

The refill container 1 of FIG. 2 is a perspective view showing a second embodiment example having a peripheral edge portion 1311 in which the peripheral edge of the dispensing tube guide opening 131 of the overcap 13 is raised in a convex shape.

As shown in the plan view of FIG. 3-1 and the vertical cross-sectional view of FIG. 3-2, the pouring container 2 of FIG. It is located in the center of the spout and has a shape in which a portion of the vertical wall 211 is notched.

Around the lower end of the pouring tube 21, there is a flow path 23 for returning the contents adhering to the vicinity of the pouring tube 21 to the inside of the pouring container. The bottom of the channel 23 is slanted, and the lower end of the slanted channel has an opening 231 leading to the inside of the pouring container 2 .

The outer cylinder 22 provided around the pouring tube 21 through the flow path is a peripheral wall extending to a position sufficiently lower than the tip of the pouring tube 21 and sufficiently higher than the flow path 23 .

The outside of the outer cylinder 22 has a threaded portion that fits with the cap 3, a plugging projection, and the like.

Of course, the pouring container main body 20 of the pouring container 2 and the spout do not need to be integrated, and are normally molded separately and assembled by fitting.

The refillable container 1 of the present invention, as shown in FIG. 1-1, comprises a container body 11 containing contents and having an opening, a lid member 12 covering the opening, and an overcap 13 .

The container body 11 may have any shape as long as it has an opening flange 111 to which the lid member can be fused, and may be a cup-shaped container body as shown in the figure or a container having a large storage portion below.

The vicinity of the opening of the refill container 1 has a structure shown in the longitudinal sectional view of FIG. 4-2.

The opening of the container body 11 has a fusing surface around which the lid member 12 is fused.

The lid member 12 is composed of at least a base material 121 and a sealant layer 122, and is fused to the periphery of the opening of the container body to seal the refill container. Insertable.

A planned opening portion 124 made of an easy-to-open processed portion 123 such as a partial half-cut line of the base material 12 is formed at a position where the pouring tube 21 of the pouring container 2 is pierced and inserted into the cover member 12 .

The easy-open processing part 123 is, for example, a laser processing such as irradiating the base material 121 of the lid material with a carbon dioxide laser, or a general Viku blade, a rotary blade, a press die, etc., to form a perforated shape, or It can be formed by processing the substrate 121 into a half-cut state within the thickness of the base material 121 so as to form a whole line.

It is preferable that the planned opening portion 124 has a structure that does not cause problems such as clogging the flow path or entering the pouring container when the pouring tube is pushed and broken.

FIG. 10-1 is a plan view of the first embodiment in which the pouring tube guide opening 131 of the overcap 13 is open, and the lid member 12 is easily opened along the inner side of the pouring tube guide opening 131. FIG. A processed portion 123 is formed.

As shown in FIG. 10-2, this easy-to-open processed portion 123 may be in a state of being connected by a circular shape with a part missing, and the planned opening portion 124 may flow into the pouring container, There is no danger of clogging the spout tube.

FIG. 11 shows an embodiment using the lid member 12 in which the intended opening portion 124 of the lid member is formed by half-cut lines radially provided from the center.

In the overcap 13 with the easy-opening plate removed or without the easy-opening plate, the scheduled opening portion 124 of the lid member 12 can be seen from the pouring tube guide opening 131, and the half-cut line of the scheduled opening portion 124 is visible. The cover material of the part to be opened 124 which extends to the vicinity of the pouring tube guide opening part 131, has an unprocessed part 1233, and is torn is connected to the peripheral cover material.

FIG. 12 shows an embodiment of the planned opening portion 124 of the lid member 12. As shown in FIGS. , Fig. 1
As shown in 2-4, the planned opening portion 124 is an easy-to-open processed portion 123 consisting of a circle 1231 and a straight line 1232 passing through the approximate center thereof, or the planned opening portion 124 is partly unprocessed without easy-to-open processing. It is formed by a substantially circular or substantially polygonal easy-to-open processed portion 123 having a portion 1233 .

The planned opening portion 124 made up of the easy-opening processed portion 123 is formed to be larger than the outer diameter A of the pouring tube for pouring out the contents from the pouring container and smaller than the inner diameter B of the outer tube of the pouring container. If the range of the scheduled opening portion 124 is set to a range equal to or less than the outside diameter A of the pouring cylinder, there is a possibility that when the pouring cylinder 21 is pierced, the breakage of the lid member 12 will not stop within the scheduled opening portion. .

If the breakage of the lid material 12 does not stop within the planned opening portion 124, the lid material 12 will be torn greatly at once on the outside thereof, and the tear will spread larger than the inner diameter B of the outer cylinder 22, and there is a risk that the contents will leak out from there. .

Even if the range of the planned opening portion 124 is made wider than the inner diameter B of the outer cylinder 22 , there is a possibility that the contents may leak out from the peripheral edge of the planned opening portion 124 .

In addition, the overcap 13 is provided with a pouring cylinder guide opening 131 .

As shown in FIG. 5, a convex peripheral edge portion 1311 that can be fitted into the opening of the pouring container may be provided on the periphery of the pouring cylinder guide opening 131 . The peripheral edge portion outer diameter C of the pouring tube guiding opening 131 is smaller than the outer tube inner diameter B of the pouring container 2, and the peripheral edge portion inner diameter D of the pouring tube guiding opening 131 is equal to the pouring tube outer diameter. Make it bigger than A.

By using such an overcap 13, as shown in FIG. 6-1, the peripheral portion 1311 is inserted into the pouring tube 21 of the pouring container 2, and the pouring tube 21 is positioned accurately. 12 can be pierced, even if the lid material 12 is broken and the contents 5 leak from the unsealed peripheral edge of the lid material, the contents drip inside the outer cylinder 22 and are less likely to leak outside. can be

A gap 132 may be provided between the overcap 13 and the lid member 12 as shown in FIG. 6-2 or 6-5.

When the refill container 1 is extracted from the pouring container after pouring out the contents, if there is this gap 132, the contents 5 adhering to the peripheral edge of the opening scheduled part of the lid 12 to be pierced and unsealed will stick to the lid 12.例文帳に追加It can be placed back into the refill container so that it does not drip and contaminate the surroundings.

Further, as shown in FIGS. 6-3 and 6-4, a structure in which the gap 132 is not provided between the lid member 12 may be employed.

The level difference E between the lid member 12 and the outer surface of the overcap 13 is greater than the level difference F between the dispensing tube 21 and the outer tube 22 so that the pouring tube 21 can surely pierce the lid member 12 of the refill container 1. A small step is recommended.

The pouring cylinder guide opening 131 of the overcap 13 may be an opening cut out in advance as shown in FIGS. It is in a state of being connected to the outer periphery (bridge), and the other may be an opening that is cut out and can be opened larger than the outer diameter of the pouring tube. Alternatively, the pouring tube guide opening 131 may not protrude from the periphery in a protruding manner.

FIG. 6-1 shows a refillable container of the present invention, in which the pouring tube guide opening 131 of the overcap 13 is supported by a bridge 1312 and can be easily opened by pushing open the pouring tube guide opening plate 1314. 4 shows an example embodiment with an opening.

As shown in FIG. 7, the pouring tube guide opening 131 has a convex peripheral edge on the periphery of the pouring tube guide opening 131 to facilitate the insertion of the pouring tube into the pouring container opening. A portion 1311 may be provided. At this time, the peripheral edge portion outer diameter C of the pouring tube guide opening 131 is smaller than the outer tube inner diameter B of the pouring container 2, and the peripheral edge portion inner diameter D of the pouring tube guide opening 131 is the outside of the pouring tube. Make it larger than diameter A.

By using such an overcap 13, as shown in FIG. 7, the convex peripheral edge portion 1311 is fitted between the outer cylinder 22 and the pouring tube 21 of the pouring container 2, and is positioned accurately. Even if the pouring cylinder 21 pierces the lid material 12, the lid material 12 is broken, and the content 5 leaks from the opened peripheral edge of the lid material, the outer cylinder 22 can be kept inside and prevented from leaking to the outside.

The pouring tube guide opening 131 of the overcap shown in FIGS. 8 and 9 is an opening that can be easily opened by an easy-to-open processed portion 1313,
The peripheral edge of the easy-to-open processed portion 1313 has at least one easy-to-open opening plate 1314 held by a bridge 1312 at one location in this figure,
The easy-to-open opening plate 1314 can be bent toward the inside of the container main body by pushing in the pouring tube, so that the opening can be easily opened.

As shown in FIGS. 6-1 and 6-2 (enlarged view of G in FIG. 6-1), a fused portion of the lid member fused to the container body 11 is located in front of the outer peripheral edge of the overcap 13. Abutting protrusions 133 may be provided that abut against the outer surface and prevent the contents from leaking out from there even if the contents flow. The tip is preferably formed with a curved surface so as to be able to linearly abut against the cover member. Even with a projection such as a contact ring, the contact projection 133 may or may not be present, such as a stepped contact.

The inner surface of the cap side wall 134 is provided with a locking claw 1341 that can be locked to the opening flange 111 of the container body. can reliably stop the liquid.

As shown in FIGS. 6-3 and 6-4, there may be no gap between the lid member 12 and the inner surface of the overcap 13. FIG.

If there is no gap, it is difficult for the contents to remain in the gap when refilling from the refilling container to the pouring container.

FIG. 6-5 shows an example in which the peripheral edge of the lid member 12 abuts against the peripheral inner surface of the overcap 13, thereby making it difficult for the overcap to come off from the container body when the refilling container is refilled into the pouring container.

The container body is not particularly limited as long as it does not swell or deteriorate due to the content and can be fused with the lid material.

In addition, it is preferable that the entire container or part of the container is made of a material that allows the contents to be visually recognized. Since it is known, it is easy to judge whether the refilling has been completed completely, and there is no fear that the refilling container is mistakenly pulled out from the pouring cylinder before the refilling is completed and the contents are soiled.

Thus, it is more preferable if the container body is as transparent as possible so that the vicinity of the inner side of the lid member can be visually recognized.

Examples of the substrate layer of the lid material include biaxially oriented polyester film, biaxially oriented polypropylene film, and biaxially oriented nylon film. It is not particularly limited as long as it has mechanical strength and dimensional stability. A biaxially stretched film is particularly preferred. Also, these films may be provided with a metal vapor deposition layer such as aluminum, or a metal oxide vapor deposition layer made of a metal such as silicon, aluminum or tin. Furthermore, an aluminum foil may be provided between the layers.

As the sealant layer, polyolefin resins are generally used, and specifically, low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene-vinyl acetate copolymer (EVA), Ethylene-methacrylic acid copolymers (EMAA), ethylene-ethyl acrylate copolymers (EAA), ionomers, polypropylene and the like can be used.

An adhesive for dry lamination can be used as the adhesive layer. For example, a two-component curing urethane adhesive, a polyester urethane adhesive, a polyether urethane adhesive, an acrylic adhesive, a polyester adhesive, a polyamide adhesive, an epoxy adhesive, and the like can be used. . As a lamination method, it is possible to use a dry lamination method, but lamination may be performed by extruder lamination while forming a film on the sealant layer side, or by sand polyethylene processing.

The overcap is limited as long as it can cover the top of the lid member 12 to protect it, can form a pouring tube guiding portion into which the pouring tube 21 is inserted, and is not swollen or deteriorated by the contents. not. polyethylene, polypropylene, polystyrene, polymethylpentene, acrylonitrile-butadiene-styrene copolymer, acrylonitrile-styrene copolymer, ethylene-propylene copolymer, and the like.

Specific examples of the present invention will be described below.

<Example 1>
The refilling container of Example 1 is a cup formed by forming a polypropylene sheet by vacuum/pressure molding as a container body, and has an opening of φ80 mm, a height of 80 mm, and a capacity of 380 ml. It was used.

A laminated film obtained by laminating a 12 μm thick biaxially stretched polyethylene terephthalate film and a 30 μm thick unstretched polypropylene resin layer was used as the lid member.

In the intended opening portion 124 of the lid member 12, an easy-to-open processed portion 123 consisting of two circular arcs 1231 and a straight line 1232 connecting the centers thereof shown in FIG.

The welding conditions for the cover material and the container body were 200° C. and 1 second.

The overcap was an injection-molded polypropylene resin cap having the shape shown in FIGS.

<Example 2>
As a refill container, a cup having a three-layer structure of polypropylene/saponified ethylene-vinyl acetate copolymer/polypropylene was used as the container body.

A laminated film obtained by laminating a 12 μm-thick biaxially stretched polyethylene terephthalate film vapor-deposited with silicon oxide and a 20 μm-thick unstretched polypropylene resin layer was used as the cover material.

In the intended opening portion 124 of the lid member 12, an easy-to-open processed portion 123 consisting of two circular arcs 1231 and a straight line 1232 connecting the centers thereof shown in FIG.

The welding conditions for the cover material and the container body were 200° C. and 1 second.

As the overcap, the same injection-molded polypropylene resin cap as in Example 1 was used, and the shape shown in FIGS. 1 and 3 was used.

<Example 3>
A laminated film obtained by laminating a 12 μm-thick biaxially stretched polyethylene terephthalate film and a 40 μm-thick unstretched polypropylene resin layer was used as the cover material.

The same conditions as in Example 2 were used for the main body of the container, the easy-to-open processed portion of the intended opening of the lid member, the conditions for fusing the lid member and the main body of the container, and the overcap.

<Example 4>
A laminated film obtained by laminating a biaxially stretched polyethylene terephthalate film of 9 μm, an aluminum foil of 15 μm, and an unstretched polypropylene resin layer of 20 μm was used as the lid material.

The same conditions as in Example 2 were used for the main body of the container, the easy-to-open processed portion of the intended opening of the lid member, the conditions for fusing the lid member and the main body of the container, and the overcap.

<Example 5>
A laminated film obtained by laminating a biaxially stretched polyethylene terephthalate film of 12 μm, an aluminum foil of 7 μm, and an unstretched polypropylene resin layer of 40 μm was used as the lid material.

The same conditions as in Example 2 were used for the main body of the container, the easy-to-open processed portion of the intended opening of the lid member, the conditions for fusing the lid member and the main body of the container, and the overcap.

<Comparative Example 1>
The refill container of the comparative example uses a biaxially oriented 6 nylon film 25 μm as the base layer, and a linear low density polyethylene resin film 110 μm as the sealant layer while extruding 30 μm polyethylene resin with an extruder lamination machine. It was used.

This laminated film was used to prepare a standing pouch having a width of 120 mm, a height of 230 mm, and a folded bottom of 30 mm.

<Comparative Example 2>
A laminated film obtained by laminating a biaxially stretched polyethylene terephthalate film of 12 μm, a biaxially stretched polyamide film of 15 μm, and an unstretched polypropylene resin layer of 110 μm was used as the lid member.

The same conditions as in Example 2 were used for the main body of the container, the easy-to-open processed portion of the intended opening of the lid member, the conditions for fusing the lid member and the main body of the container, and the overcap.

<Comparative Example 3>
A laminated film obtained by laminating a biaxially stretched polyethylene terephthalate film of 12 μm, an aluminum foil of 7 μm, and an unstretched polypropylene resin layer of 110 μm was used as the lid material.

The same conditions as in Example 2 were used for the main body of the container, the easy-to-open processed portion of the intended opening of the lid member, the conditions for fusing the lid member and the main body of the container, and the overcap.

<Evaluation details>
A refill evaluation and a push-to-break evaluation were performed.

<Refill evaluation method>
The refillable containers of Example 1 and Comparative Example 1 were used.

As contents, 360 g of liquid detergent was filled in a refill container.
As the pouring container, a plastic bottle container with a nozzle cap and a capacity of 480 ml, which is commercially available as a liquid detergent and has a pouring tube and a flow path around which the contents are returned, was used.

In the refilling evaluation method, a total of 10 people, 5 males and 5 females, were used as monitors, and the entire contents of the refilling containers of Example 1 and Comparative Example 1 were refilled into pouring containers.

At the time of refilling, liquid leakage at the start of refilling, liquid leakage during refilling, liquid leakage at the end of refilling, stability of refilling, and remaining contents after refilling were evaluated on a scale of 5, and the evaluation scores were averaged. .

<Refill evaluation test results>
<Leakage at the start of refilling>
In Comparative Example 1, since the container is opened first and then refilled, the contents are likely to spill when the mouth is brought close to the container, which is unstable. However, in Example 1, the content does not come out reliably until the pouring tube is pierced into the lid, so that refilling can be done without worrying, so it was highly evaluated.

<Leakage during refilling>
In Comparative Example 1, the refill container was tilted and filled, and the tilt had to be changed greatly according to the filling. However, if the inclination is increased, there is a problem that leakage is likely to occur.

However, in Example 1, once the tip of the pouring tube was pierced through the pouring tube guide opening into the opening portion of the lid body, even if the entirety was tilted, there was no leakage from the surroundings.

<Liquid leakage at the end of refilling>
There was no difference between Example 1 and Comparative Example 1.

<Stability of refilling>
In Comparative Example 1, if the refillable container is filled with a large inclination and the filling speed is increased, leakage will occur. Moreover, it is very unstable because it is necessary to maintain the state in which the tip of the unsealing portion is stuck into the pouring tube.

However, in Example 1, once the tip of the pouring tube is pierced through the pouring tube guide opening into the portion to be opened in the lid, it is sufficient to keep the pierced state until the end, so it was very stable. .

<Remaining contents after refilling>
In Comparative Example 1, a large amount of the contents adhered to the pouch.

In Example 1, almost no contents remained in the portion between the vertical wall portion of the pouring tube and the lid member in the container body.

From the above results, in the overall evaluation, Example 1 showed better results than Comparative Example 1.

<Push-to-break evaluation method>
The refillable containers of Examples 2-5 and Comparative Examples 2-3 were used.

As a pouring container, the plastic bottle container with a nozzle cap used in the refilling evaluation test was used.

An electric compression tester was used for the push-to-break evaluation method. The pouring container with the nozzle facing downward was attached to the movable part for compressing, and the refilling container with the lid facing upward was attached to the fixed part, and installed at a position where the tip of the nozzle hits the intended opening of the lid.

The compression speed of the electric compression tester was set to 100 mm/min, five samples of each example were measured, and the average was obtained.

<Push breaking evaluation test results>
In the refillable containers of Examples 2, 3, 4 and 5, the nozzle penetrated the cover material with a force of 30 to 34N.

In the refillable containers of Comparative Examples 2 and 3, the polypropylene resin layer of the cover material was stretched and a force of 47 to 70 N was applied, but the nozzle did not completely penetrate.

This is probably because when the sealant layer has a thickness of 110 μm, the sealant tends to stretch and is difficult to break.

As described above, the refillable container of the present invention is easy to hold because a highly rigid cup-shaped container can be used instead of a flexible container such as a conventional pouch. In addition, since the outer side of the lid material that can be opened by pushing and breaking is covered with an overcap having a pouring tube guide opening larger than the outside diameter of the pouring tube, the pushing and breaking position does not shift and can be stably pushed and broken. It is possible.

In addition, since refilling is performed while the nozzle is pushed through the lid material, the contents are less likely to leak, and the container can be stably refilled with a small remaining amount until the end.

Furthermore, even when the refill container is tilted and pulled out from the pouring container after refilling, the contents do not leak out, so that the refilling container of the present invention is less likely to stain the surroundings.

Reference Signs List 1: refill container 11: container body 111: opening flange 12: cover material 121: base material 122 ..... sealant layer 123 ..... easy-to-open processed portion 1231 ..... circle (easy-to-open processed portion)
1232・・・Straight line (easy-open processing part)
1233・・・Unprocessed portion (easy-open processed portion)
124 ... Opening scheduled part 13 ... ... Over cap 131 ... ... Pour out pipe guide opening 1311 ...... Peripheral part (pour out pipe guide opening)
1312 Bridge 1313 Easy-to-open opening 1314 Easy-to-open opening plate 132 Gap 133 Contact projection 134 . . . Cap side wall 1341 . . . . . . Vertical wall 22 .. Outer cylinder 23 .. Flow path 231 .・・・・Contents A ・・・・Outer diameter of pouring cylinder (pourout container)
B・・・・・・Outer cylinder inner diameter (pourout container)
C・・・・・・Peripheral edge part outer diameter (draining cylinder guide opening)
D・・・・・・・・Peripheral edge inner diameter (draining cylinder guide opening)
E・・・・・・・Step (step between lid material and outer surface of overcap)
F・・・・・・・Step (step between pouring cylinder and outer cylinder)
G・・・・・・Periphery of overcap

Claims (9)

A pouring container comprising a pouring tube having an opening and an outer tube consisting of a peripheral wall forming a flow path connected to the opening around the pouring tube, and having a storage space for containing contents therein, A refill container that refills the storage space with contents through the pouring cylinder,
a container body having an accommodating portion for accommodating contents and an opening;
a cover member that covers the opening, is composed of at least a base material and a sealant layer, and has a planned opening portion that can be opened by pushing and breaking the pouring cylinder of the pouring container;
A peripheral edge portion that can be fitted around the opening, and a pouring tube guide opening that allows the pouring tube of the pouring container to reach the intended opening portion above the lid member are formed. an overcap having an outer surface ;
The overcap includes a cap sidewall that is provided on the peripheral edge of the overcap and protrudes downward, a contact protrusion that is provided in front of the peripheral edge of the outer surface of the overcap and contacts the lid member, and an inner surface of the cap sidewall. a locking claw that is provided and locked to the opening of the container body;
The overcap is fitted to the upper part of the container body in which the contents are stored in the storage part and the lid member is sealed with a seal,
A refillable container characterized by: 2. The refill container according to claim 1, wherein the planned opening portion is an easy-to-open processed portion that can be pushed and broken by the pouring tube of the pouring container. 3. The refill container according to claim 2, wherein the easy-to-open processed portion is formed of a half-cut line forming an opening into which the pouring cylinder can be inserted and removed. 4. The refill container according to any one of claims 1 to 3, wherein the inner diameter of the rim of said pouring tube guide opening is larger than the outer diameter of said pouring tube. The refill container according to any one of claims 1 to 4, wherein the outer diameter of the rim of the pouring tube guide opening is smaller than that of the outer tube of the pouring container. 6. The refill container according to any one of claims 1 to 5, wherein the pouring cylinder guide opening is formed of a cut-out portion or a cut-out portion having a partially uncut portion. 2. The length between the upper surface of the lid member and the outer surface of the overcap is equal to or less than the length between the tip of the pouring tube of the pouring container and the upper end of the outer tube. 7. The refillable container according to any one of 1 to 6. 8. The refill container according to any one of claims 1 to 7, wherein a part or the whole of the container body allows the contents to be seen through. The refill container according to any one of claims 1 to 8, wherein the thickness of the sealant layer is 20 µm or more and 100 µm or less.

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