JP5760461B2 - Packaging container, lid - Google Patents

Description

  The present invention relates to a packaging container for packaging instant noodles cooked by steaming with hot water, for example, and a lid used therefor.

  As a packaging container that wraps instant noodles that are poured into hot water, cooked, and then drained, the cup container is fitted with a plastic molded lid, or a cup-shaped lid is simply placed on the cup container. Some are sealed. In the former packaging container, after pouring hot water and cooking noodles, hot water is discharged from the hot water cut-off hole provided at the top end of the lid of the plastic molded product. In the latter packaging container, an opening is formed in a part of the cup container by peeling a part of the lid from the cup container, and hot water is injected and discharged from the opening.

Japanese Utility Model Publication No. 3-11681

  However, in a packaging container using a plastic molded product lid, if the lid is not properly fitted in the cup container, the lid will come off from the cup container when the hot water is drained, and the noodles will flow out. is there. In addition, in a packaging container in which a lid is simply attached to a cup container, since the human body sensibly peels the lid from the opening of the cup container, the degree of peeling (the size of the area to be peeled) is constant. is not. Therefore, the lid body may be peeled off more than necessary. In such a case, there was a problem that even the noodles cooked at the time of hot water drainage were discharged.

  Therefore, in the present invention, in forming the discharge port for hot water drainage, the lid body is not largely peeled from the opening of the cup container, and there is no possibility that the contents such as noodles are discharged, It aims at providing the packaging container which can implement | achieve favorable hot water cutting.

  The present invention relates to a packaging container. The packaging container includes a cup container and a lid that seals the opening of the cup container. The lid is formed with a cutting line that divides a first region including a part of the outer peripheral edge of the lid and a second region other than the first region, and the lid of the first region is The discharge port for discharging the liquid in the cup container is formed by separating from the lid body of the second region and peeling from the cup container.

Further, the cup container is formed with a shallow portion whose depth from the opening end of the cup container is shallower than other portions, and the first region overlaps at least a part of the shallow portion. A projection is formed in the shallow portion, the projection is sealed only in the second region of the lid, and the cutting line is formed so as to pass outward of the shallow portion from the projection.

  Using the packaging container of the present invention, when forming an opening for hot water cutting, the lid body is prevented from being accidentally peeled off, and the contents such as noodles are not discharged. A reliable and good hot water drain can be realized.

The perspective view of the packaging container which concerns on 1st Embodiment The perspective view which shows the state which has peeled a part of cover body of the packaging container shown in FIG. Sectional drawing along the III-III line of the packaging container shown in FIG. Sectional drawing of the cover body equivalent to the A section of the packaging container shown in FIG. The perspective view of the packaging container which concerns on the modification of 1st Embodiment. The perspective view of the packaging container which concerns on 2nd Embodiment Sectional drawing along the VII-VII line of the packaging container shown in FIG. The expanded sectional view of the B section of the packaging container shown in FIG. The perspective view which shows the state which has peeled the surface material of the cover body of the packaging container shown in FIG. The perspective view of the packaging container which concerns on the comparative example 1 Sectional drawing along the XI-XI line of the packaging container shown in FIG. The perspective view of the packaging container which concerns on the comparative example 2

(First embodiment)
FIG. 1 is a perspective view of the packaging container according to the first embodiment, and FIG. 2 is a perspective view showing a state in which a part of the lid of the packaging container shown in FIG. 1 is peeled off.

  The packaging container 11 shown in FIG. 1 includes a cup container 21 and a sheet-like lid body 31 that seals the opening of the cup container 21.

  The cup container 21 has a circular opening. Further, a flange projecting outward is formed at the open end 25 of the cup container 21. Further, the cup container 21 is formed with a shallow portion 26 whose depth from the opening end 25 is shallower than other portions. A plurality of protrusions 27 are formed on the shallow portion 26. As the cup container, a molded article such as polystyrene or polypropylene is preferably used.

  The lid 31 is made of a sheet material having a sealant for sealing to the cup container 21, and is formed in a substantially circular shape that is slightly larger than the opening of the cup container 21. Further, a part of the outer peripheral edge of the lid 31 includes a tab 61 for peeling the lid 31 from the opening of the cup container 21, a tab 62 for peeling and removing a part of the lid 31, and A cutting line 51 is provided (partial peeling of the lid will be described later).

  3 is a cross-sectional view taken along line III-III of the packaging container shown in FIG. 2, and FIG. 4 is an enlarged cross-sectional view of a lid corresponding to part A of the packaging container shown in FIG.

  As shown in FIGS. 3 and 4, the lid 31 is made of a sheet in which, for example, an adhesive resin, an aluminum foil, polyethylene, and paper are laminated in order from the side attached to the opening of the cup container 21. In addition, a cutting line 51 is formed in the lid 31 so as to penetrate the paper in the plane direction of the lid 31. Then, the lid body 31 is partitioned by the cutting line 51 into a region 41 including a part of the outer peripheral edge (upwardly hatched portion) and a region 42 other than the region 41 (downwardly hatched portion). The adhesive resin may be appropriately selected depending on the material of the cup container 21. For example, low density polyethylene (LDPE), ethylene methacrylic acid copolymer (EMAA), or ethylene acrylic acid copolymer (EAA) may be used. Can be used. The cutting line 51 is formed by, for example, perforation (one or a plurality of lines along the cutting line 51) or half cut. Note that the layer configuration of the lid body 31 is merely an example, and the layer configuration of the lid body 31 is arbitrary as long as it is a sheet-like material sealed in the opening of the cup container 21. It is.

  Here, as shown in FIGS. 2 and 3, the region 41 of the lid 31 overlaps with a part of the shallow portion 26 of the cup container 21. Further, the protrusion 27 is sealed in the region 42 of the lid 31.

  The packaging container 11 is used, for example, for packaging instant noodles of the type returned with hot water. When eating noodles, first, in order to pour hot water, the tab 61 is picked and rolled up to peel off a part of the lid 31 from the opening of the cup container 21. And after pouring hot water into the cup container 21 from the opened opening part, the opening part is again covered with a lid body, and the noodles are cooked with hot water. After the predetermined time has elapsed and the noodle cooking is completed, the tab 62 is picked and turned in the direction of the white arrow in FIG. 2, and the lid of the region 41 is separated from the lid of the region 42 along the cutting line 51. Then, the lid of the region 41 is peeled from the opening of the cup container 21. As a result, a discharge port 81 for discharging hot water in the cup container 21 is formed on the side opposite to the opening tab 61. At this time, the shallow portion 26 is exposed from the discharge port 81. Then, by tilting the cup container 21 so that the shallow portion 26 becomes relatively low, hot water in the cup container 21 passes through the gap between the shallow portion 26 and the lid 31 and is discharged from the discharge port 81. The As described above, since the protrusion 27 is sealed by the lid body 31 in the region 42, the spread of the gap between the shallow portion 26 and the lid body 31 due to the bending of the lid body 31 is prevented at the time of hot water cutting. . As a result, the outflow of contents such as noodles during hot water cutting is effectively prevented.

  Thus, if the packaging container 11 is used, a part (region 41) of the lid body 31 can be separated along the cutting line 5, and therefore the lid body 31 is peeled off too much from the opening of the cup container 21. There is no. Furthermore, the gap between the shallow portion 26 and the lid body 31 in the region 42 more effectively prevents the noodles from flowing out during hot water cutting. In the packaging container 11, a configuration having only the shallow portion 26 may be used without providing the protrusion 27. Further, in order to facilitate the cutting of the region 41 of the lid 31, a cut may be formed at the end portion (tab 62 side) of the cutting line 5.

(Modification of the first embodiment)
In addition, in the packaging container which concerns on 1st Embodiment, as shown in FIG. 5, you may employ | adopt the shape without a shallow part and protrusion of a cup container. Even in this case, by adjusting the size of the region 41 of the lid, it is possible to realize a good hot water drain while preventing the noodles from flowing out during the hot water drain.

(Second Embodiment)
FIG. 6 is a perspective view showing a state in which the cup container is sealed with the lid according to the second embodiment.

  On a part of the outer peripheral edge of the lid 32, a tab 63 for peeling the lid 32 from the opening and a part of the surface layer of the lid when forming a discharge port for hot water cutting (upward diagonal lines) And a tab 64 for partially peeling the portion).

  7 is a cross-sectional view taken along the line VII-VII of the lid and cup container shown in FIG. 6, and FIG. 8 is an enlarged cross-sectional view of part B of the packaging container shown in FIG.

  The lid body 32 includes a base material 35 that is sealed to the cup container and a surface material 36 that is detachably stacked on the base material 35. As the base material 35, for example, a laminated sheet in which an adhesive resin, an aluminum foil, and polyethylene are laminated in order from the side attached to the opening can be used. In addition, as adhesive resin, the thing similar to 1st Embodiment mentioned above can be used. The surface material 36 is made of paper, for example. A resin film such as PET (polyethylene terephthalate) may be further provided on the surface of the paper. And the base material 35 and the surface material 36 are laminated | stacked so that peeling is possible via peeling varnish. As the peeling varnish, for example, a wax-based, polyamide-based, silicon-based, or acrylic resin-based one is preferably used. The peeling varnish is applied to the entire surface or a part (dot pattern or the like) on the interface between polyethylene and paper. Further, in order to prevent the release varnish from being impregnated into the paper, a mistake in sealing may be interposed between the release varnish and the paper. As the sealing varnish, for example, nitrified cotton, urethane, wax, polyamide, silicon, and acrylic resin are preferably used. Note that the layer structure of the lid body 32 is merely an example, and any material may be used as long as it is sealed at the opening of the cup container and the surface material and the base material are detachably laminated. The number of layers and the material are arbitrary.

  Further, as shown in FIG. 6, a linear cutting line 52 (half cut) that vertically cuts the lid 32 is formed in the lid 32. The lid 32 is partitioned by the cutting line 52 into a region 43 (upwardly hatched portion) and a region 44 (downwardly hatched portion).

  As shown in FIG. 8, the cutting line 52 is formed so as to penetrate the surface material 36 and the peeling varnish and reach the inside of the polyethylene of the base material 35. Further, a plurality of circular cutting lines 53 (in the plane direction of the lid) for forming the discharge port 82 penetrate through the base material 35 and the peeling varnish and reach the inside of the paper constituting the surface material 36. It is formed to reach. Further, in the radial direction of the cup container 22, a cutting line 54 (half cut) that is located outside the opening and crosses the tab 64 is formed. Similarly to the cutting line 53, the cutting line 54 penetrates the base material 35 and the peeling varnish, and is formed so as to reach the inside of the paper constituting the surface material 36.

  FIG. 9 is a perspective view showing a state where the surface material of the lid of the packaging container shown in FIG. 6 is peeled off.

  In the cup container 22 sealed with the lid 32, hot water is poured into the cup container 22 in the same manner as in the above-described first embodiment, and the hot water is cooked after completion of cooking for a predetermined time. Turn 9 in the direction of the white arrow. As a result, the surface material 36 in the region 43 is peeled off from the base material 35 along the cutting line 52 with the cutting line 54 as a starting point, and a discharge port 82 (a through hole in a portion surrounded by the cutting line 53 shown in FIG. 6) Is exposed. Then, hot water is discharged from the discharge port 82.

In addition, it is preferable that each area of the discharge port 82 is 0.5-75 mm < ² >. If the area of the discharge port 82 is less than 0.5 mm ² , it takes too much time to drain the hot water. On the contrary, when the area of the discharge port 82 exceeds 75 mm ² , the noodles flow out when the hot water is cut. Moreover, it is preferable that the number of the discharge ports 82 is 1-20. Furthermore, although the discharge port 82 is circular, it is not limited to this. For example, a rectangular discharge port may be adopted by providing a square cutting line, or a discharge port that spreads in a pupil shape when hot water is cut may be adopted by providing a linear cutting line.

  If the lid 32 is used in this manner, the hot water can be drained from the discharge port 82 without peeling the lid 32 from the cup container 22 when the hot water is drained. As a result, a good hot water cutting without the noodles flowing out during the hot water cutting is realized.

  In the cup container according to the first and second embodiments described above, the opening shape is circular, but is not particularly limited thereto. For example, a cup container having a square opening shape may be used.

  Examples in which the present invention is specifically implemented will be described below.

Example 1
The packaging container according to Example 1 has the same configuration as that shown in FIG. The layer structure of the lid 31 is in order from the side attached to the opening of the cup container 21, a 25 μm thick EMAA polystyrene resin, a 7 μm thick aluminum foil, a 13 μm thick polyethylene, and a surface designated. A piece of art paper with a weight of 79.1 g / m ² on which a pattern is printed is laminated. The cutting lines 51 are formed by forming perforations in three rows along the cutting line 51.

(Example 2)
The packaging container according to Example 2 has the same configuration as that shown in FIG. The lid 32 is a base material 35 in order from the side that is attached to the opening of the cup container 22, a 20 μm thick EMAA polystyrene resin, a 9 μm thick aluminum foil, and a 13 μm thick extruded low density polyethylene (LDPE). A laminate of was used. Further, as the surface material 36, a piece of art paper having a weight of 79.1 g / m ² with a designated pattern printed on the surface was used. The base material 35 and the surface material 36 are attached in a state where a peeling varnish (entire surface) and a sealing varnish (dot shape) are interposed on the LDPE-side base material 35. The cutting line 52 was formed by three rows of perforations along the line of the cutting line 52. The cutting lines 53 and 54 were formed by a half cut.

(Comparative Example 1)
As the packaging container according to Comparative Example 1, the one shown in FIGS. 10 and 11 was used. The lid 33 in the packaging container 13 is made of a sheet-molded resin molded product, and includes a circular top plate 37 and a cylindrical side wall 38 extending vertically downward from the outer periphery of the top plate 37 in FIG. Have. The lid 33 is fixed to the cup container 23 by fitting the side wall 38 to the flange of the cup container 23 on the opening side. A claw 39 is formed in the top plate 37 by a U-shaped notch penetrating the top plate 37. And the discharge port 83 is formed by bending the said nail | claw 39 to the upper side of FIG.

(Comparative Example 2)
As the packaging container according to Comparative Example 2, the one shown in FIG. 12 was used. The packaging container 14 has a lid 34 attached to the opening of the cup container 24. The cup container 24 is formed with a plurality of grooves 28 extending from the bottom toward the opening in a part of the side wall. The groove 28 is provided to guide the flow of hot water when the hot water is cut off. When the tab 65 is picked and a part of the lid 34 is peeled from the opening of the cup container 24, the discharge port 84 is formed. The groove 28 is exposed from the outlet 84.

  Tests in which contents (noodles, ingredients, etc.) are put into the packaging containers according to Examples 1 and 2 and Comparative Examples 1 and 2, hot water is put into each packaging container, and hot water is discharged from the outlet after a predetermined time has elapsed. Went. Regarding the test results, the following items were evaluated. The results are shown in Table 1.

[Hot water cutting property]
When the hot water is cut off, the time required for hot water cutting is “○: The time required for hot water cutting is short Δ: The time required for hot water cutting is not as short as in the case of“ ○ ”, but there is no practical problem. : The time required for hot water cutting is long.

[Prevents noodles from flowing out]
Regarding the presence or absence of outflow of noodles, etc. when performing hot water cutting, including the case where problems such as removing the lid occurred, “○: There was no outflow of noodles, etc., Δ: There was a slight outflow of noodles, X: There was much outflow of noodles etc. "

[Cover productivity]
Regarding the ease of production of the lid in consideration of the production efficiency such as the speed and the number of processes for producing the lid, “○: production is easy, Δ: production is somewhat difficult, ×: production is not easy” It was evaluated with.

[Cost of lid]
The manufacturing cost of the lid was relatively evaluated as “◯: low cost, Δ: normal, x: high cost”.

  From Table 1, it was confirmed that the packaging containers according to Examples 1 and 2 have good hot-water cutting properties and can prevent the noodles from flowing out during hot-water cutting. Further, the lid of the packaging container according to Example 1 is easy to produce and can be manufactured at low cost.

  The present invention can be used, for example, in a packaging container for packaging instant noodles.

11-14 Packaging container 21-24 Cup container 25 Open end 26 Shallow part 27 Protrusion 28 Groove 31-34 Cover 35 Base material 36 Surface material 37 Top plate 38 Side wall 39 Claw 41-44 Area 51-54 Cutting line 61-65 tab

Claims (1)

A packaging container,
A cup container,
A lid that seals the opening of the cup container;
The lid is formed with a cutting line that divides a first region including a part of the outer peripheral edge of the lid and a second region other than the first region,
By separating the lid of the first region from the lid of the second region and separating from the cup container, a discharge port for discharging the liquid in the cup container is formed ,
The cup container is formed with a shallow portion whose depth from the opening end of the cup container is shallower than other parts,
The first region overlaps at least a portion of the shallow portion;
A projection is formed in the shallow part,
The protrusion is sealed only to the second region of the lid;
The packaging container is formed so that the cutting line passes through the outer side of the shallow portion from the protrusion .

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