JP2007182246A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container which minimizes the remaining of hot water, and in addition, can increase the hot-water draining speed, and also, can skillfully solve the problem that a content leaks outside of the container as well. <P>SOLUTION: A lid member 4 is pasted to the opening edge section of a container body 2, the opening section is sealed by the lid member 4, and a food is housed in the container body 2. In the container, a weir 9 for preventing the food from flowing out when a liquid is drained is projected on a shoal section 8 which is provided on the internal side of the opening section of the container body 2. On both sides of the shoal section 8, a cohesion water way 10 is provided in a manner to expand further outside of the internal surface existing position of the peripheral wall 2B of the container body 2. In the meantime, numerous hot-water draining holes 11 are provided on the lid member 4 at an area including the section corresponding to the shoal section 8. A pair of the right and left hot-water draining holes 11A which correspond to the shoal section 8 from among the numerous hot-water draining holes 11 are provided across the weir 9, and each of them is opened while corresponding to the cohesion water way 10. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a packaging container used for sealed packaging of instant foods such as fried noodles, for example, and in particular, a lid provided with a hot water drainage hole for discharging hot water to be poured to soften instant foods is sealed at the opening. Related to packaging containers.

As this type of conventional packaging container, various products having a peeling mechanism and having a lid material in which a hot water discharge path or a hot water drainage hole is developed by a peeling operation have been proposed and are commercially available.

One specific means is to provide a step portion that is one step lower than the peripheral edge of the opening of the container on the inner side of the side wall of the container body, and a number of hot water cutting holes are formed vertically and horizontally at the portion corresponding to the step portion of the lid. It is arranged in an orderly manner to prevent food from moving into the space formed between the step portion and the lid material, thereby preventing clogging of the hot water cut hole and enhancing the hot water draining effect. The other is that a step is provided on the inside of the mouth of the container body, and an oblong weir in plan view is provided in this step to prevent the outflow of food when hot water is discharged. Projected in a direction perpendicular to the flow, the food was blocked by this weir, and the hot water was discharged from the hot water outlet obtained by peeling the lid material to the vicinity of this weir, so as to enhance the drainage effect. Is.
Japanese Utility Model Publication No. 62-69464 Japanese Patent No. 3256193

Of these conventional means, in the former case, although a space for enhancing the drainage effect is provided between the stepped portion and the lid material, fine materials will flow into this space if possible. There was a problem that came and blocked the hot water hole. Moreover, since the hot water cut holes are small holes that are regularly arranged at equal intervals in the vertical and horizontal directions, clogging becomes worse and the hot water discharge effect is not good.

In the latter case, when the hot water is discharged, the hot water discharge path between the weir and the inside of the mouth of the container body is completely opened. There is a problem that even the material is inadvertently discharged. In addition, since the dam as described above is provided on the step portion, the dam conversely prevents hot water from being discharged, and there is a problem that effective hot water cannot be discharged.

In general, the main ingredient of the food contained in the container body, such as noodles, is once poured into hot water, etc., but it becomes a simple substance. Therefore, compared to other ingredients, the presence of the weir reduces the risk that the main material will inadvertently flow out of the hot water discharge passage. However, drainage efficiency is very bad,
It has not yet reached a fundamental solution to the critical problem that other ingredients flow out and sometimes the main material also flows out.

As a result of various studies to solve the problems of the conventional packaging container, the present inventor adopted a weir in view of the fact that adoption of the weir can prevent the outflow of food to some extent. As a result of repeated efforts to solve the disadvantages of using weirs, we were able to obtain an almost satisfactory packaging container.

Accordingly, an object of the present invention is to provide a packaging container that can eliminate hot water as much as possible and increase the rate of pouring hot water, and can also solve the problem of the contents leaking out of the container. is there.

In order to solve the above technical problem, a packaging container according to claim 1 of the present invention has a lid attached to an opening edge of a container body, and the opening is sealed with the lid, A container for storing food in the container body, and a shallow water portion is provided inside the opening of the container body, and a weir for preventing the outflow of food when liquid is discharged is provided in the shallow water portion, Coagulated water channels are provided on both sides of the container body so as to swell further outward than the position of the inner surface of the peripheral wall of the container body. On the other hand, the lid member includes a portion corresponding to the shallow portion and includes a large number of hot water. A pair of left and right hot water cut holes corresponding to the shallow portion of the many hot water cut holes are provided on both sides of the weir, each opening corresponding to the condensed water channel It is.

According to the above configuration, stored items such as fried noodles softened in the container when liquid such as hot water is discharged are first dammed up by the rising wall and the weir in the shallow section, and may flow out. Is reduced as much as possible. In addition, the stored item is difficult to move into the space between the shallow portion and the lid member, so that the hot water drain hole is not clogged, and the liquid can be quickly discharged.
In addition, since the pair of right and left agglomerated water channels in the shallow portion is formed so as to bulge further outward than the position of the inner surface of the peripheral wall of the container body, the contents are dammed to the inner surface of the peripheral wall of the container body. The lever does not enter the agglomerated water channel, and therefore, there is little possibility that the liquid in the container will be disturbed by the contained material, and quick discharge is possible. In addition, since a pair of hot water cutting holes at the tip provided in the lid material are opened corresponding to this agglomerated water channel, the liquid that quickly flows down this agglomerated water channel, without hindering the flow at all, It drains straight out of the lid, improving the speed and ability to drain water, especially when the liquid is low.

Therefore, this invention has the following effects.
As described above, the packaging container according to claim 1 of the present invention is provided with a pair of flocculated water channels on both sides of the shallow section, together with a weir for damming the contents, and on the other hand, the cover material faces the flocculated water channel. In addition, a pair of hot water cutting holes at the tip is provided, so that hot water can be achieved very quickly and there is little risk of the contents leaking out of the container during the hot water operation. The rest could be eliminated well, and the contents could be eaten more deliciously.

In the present invention, as described in claim 2, the shallow portion is provided with a rising surface on the same vertical surface as the inner surface of the peripheral wall of the container body, and the shallow portion is further outward than the inner surface of the peripheral wall of the container body. It is desirable to be provided to bulge out.
This is because unnecessary projections are protruded inward of the container, and there is no possibility of accidentally damaging the contents, and the hot water removal effect can be effectively exhibited.

Further, in the present invention, as described in claim 3, the aggregated water channel has a lower end lower than the shallow portion and is on the inner surface of the peripheral wall of the container body, and an upper end is located at the same position as the upper surface of the shallow portion. In addition, it is desirable to be formed so as to be located further outward than the rising surface of the shallow portion.
This is because the contents are dammed by the inner surface of the peripheral wall of the container body and the rising surface of the shallow portion, and do not inadvertently enter the water channel, so that the hot water action by the condensed water channel can be achieved more effectively.

As a container for instant fried noodles, the purpose is to provide a packaging container that can eliminate hot water as much as possible, speed up the hot water drainage, and solve the problem of contents leaking out of the container. I made it possible.

Example 1
First, the case where the packaging container according to the present invention is applied to a rectangular container for instant fried noodles will be specifically described below with reference to FIGS.

In FIG. 4A, a packaging container 1 includes a container body 2 having a rectangular shape or a square shape (square shape in the illustrated example), and a flange 3 provided at the edge of the upper surface opening of the container body 1. The lid 4 having the same shape as the flange 3 and having a hot water function is sealed. In this cover material 4,
A protruding opening pull tab 5 is integrally provided at one corner located on the diagonal line, and a protruding hot water hole opening pull tab 6 is provided at the other opposite corner to the opening pull tab 5. It has been. Inside this packaging container 1, dried instant yakisoba noodles 7 are seasoned,
After filling with a small bag (not shown) such as blue glue, the lower surface of the peripheral edge of the lid 4 is heat-sealed to the upper surface of the flange 3 of the container body 2 and sealed.

As shown in FIGS. 1 to 3, a shallow portion 8 is integrally formed inside the corner 2 </ b> A corresponding to the pull tab 6 for opening a hot water cut hole of the lid member 4 of the container body 2.
The concrete structure of the shallow portion 8 is such that the peripheral wall 2B of the container body 2 at the corner 2A of the container body 2 starts from the bottom 2C of the container body 2 with the position one step lower than the flange 3 of the container body 2 as the upper end. It is formed as a stepped portion that bulges inwardly toward the inside of the container body 2. Also,
The upper surface 8A of the shallow portion 8 is formed as a flat surface.

Note that the rising inner wall surface 8B of this step portion continuously exists in a smooth circular arc with the inner surface of the peripheral wall 2B of the container body 2 that is continuous to the left and right of the corner 2A. That is, the stand-up inner wall surface 8A is a flat vertical surface, and does not adopt an independent form in which the rising inner wall surface 8A is connected at an angle to the inner surface of the peripheral wall 2B of the container body 2 connected to the left and right.

Further, on the upper surface 8A of the shallow portion 8, a single convex portion is integrally formed at the left and right centers over almost the entire length from the flange 3 to the inside of the container body 2 and to the rising inner wall surface 8B. The weir 9 is formed by being raised. Further, the upper surface of the weir 9 is provided slightly below the upper surface of the flange 3.

And on the left and right sides of this weir 9, the left and right shallow part 8 has a right and left substantially central part,
Each of the peripheral walls 2B of the container body 2 is further bulged outwardly from the position where the inner surface is present so that the cross-sectional shape is substantially V-shaped to form a condensed water channel 10. The lower end 10A of the condensed water channel 10 is lower than the shallow portion 8, and is approximately 2 from the top and bottom height of the peripheral wall 2B of the container body 2, that is, from the top and bottom dimensions from the top surface of the flange 3 to the bottom 2C of the container body 2. One part
Alternatively, it is at a depth of about two thirds, and the upper end 10B is located at the same position as the upper surface 8A of the shallow portion 8 and more outward than the rising inner wall surface 8B of the shallow portion 8. Is formed.

Therefore, a structure is formed on both sides of the shallow portion 8 that is connected to the inside of the container body 2, and a hot water cut-off path that is deeply cut outward and deeper than the peripheral wall 2 </ b> B, and the rise of the shallow portion 8. Instantly fried soba noodles after being dissolved, as shown in FIG. 3, taking into account a structure in which the inner wall surface 8B is continuous with the inner surface of the peripheral wall 2B of the container body 2 connected to the left and right of the corner 2A. The noodles 7 do not easily enter the agglomerated water channel 10, and therefore, it is possible to achieve an extremely smooth and speedy hot water without being disturbed by the instant yakisoba noodles 7.

On the other hand, the container 4 is provided on the side where the lid member 4 is provided with a pull tab 6 for a hot water cut hole.
A number of hot water cutting holes 11 are provided in a portion corresponding to the corner 2A. The basic configuration of the hot water cut hole 11 is as follows. First, as shown in FIG. 1, a pair of hot water cut holes 11A closest to the corner 2A are arranged at a position corresponding to the left and right of the weir 9, and each of them is arranged as a pair. It is arrange | positioned according to the position corresponding to the upper end of substantially.

Therefore, when the container main body 2 is tilted and drained, the hot water flows from the inside of the container main body 2 to the lower end 10A of the aggregated water channel 10 and then smoothly flows to the upper end 10B, and continues to the corner 2A. It is discharged out of the container main body 2, that is, out of the lid, straight from the near hot water cut hole 11 </ b> A. As a result, the hot water flowing down the condensed water channel 10 is discharged straight without obstructing the flow, and the hot water speed and the hot water performance when the hot water is reduced are greatly improved. Can do.

Furthermore, the hot water cut hole 11 including the hot water cut hole 11A closest to the corner 2A, as shown in the figure,
It is formed in an oval shape, and its long axis direction is directed from the center of the lid member 4 to the shallow portion 8 side,
In addition, the farther away from the imaginary line segment L that connects the center side of the lid member 4 and the shallow portion 8, the larger the depression angle formed with the imaginary line segment L is, and the radial lines are arranged. As shown in the figure, five rows are provided for the center side of the lid member 4 with a predetermined interval in order from a pair of tips, and the second row 11-2 is a hole in the first row 11-1. The number of holes in the fifth row, which is the last row, is set to 6 from the pair in the foremost row, with the number of holes increased by one for each row. Has been.

The container body 2 is formed so as to expand upward with a foamed resin material such as foamed polystyrene, and is formed in a shape bent downward on the outer peripheral edge of the flange 3.

Furthermore, it goes without saying that the lid member 4 has a similar shape to the container body 2 and is formed so as to close the upper end opening of the container body 2. As shown in FIGS. 4B and 5, the lid 4 basically has the surface sheet 12 as the outer surface side, and the inner surface sheet 13 on the inner surface side (food side), specifically, the inner side. For example, it is formed in a sheet shape in which a sealant layer 14 / aluminum foil 15 / adhesive layer 16 are laminated and laminated. Further, the lid member 4 has an easy-release agent (on the inner surface of the inner surface sheet 13 and the upper surface sheet 12 in a partial area from the outer side surface to the inner side of the hot water hole pull tab 6 on the inner surface. An easy peeling region L1 by the easy peeling layer 17 formed by applying a peeling varnish) is provided, and an adhesive region L2 in a bonded state is provided on the inner surface of the other inner surface sheet 13 and the surface sheet 12 other than that. It is equipped.

And the half cut 18 for hot water cut hole 11 formation corresponding to the hot water cut hole 11 is formed in the inner surface sheet | seat 13 in the said easy peeling area | region L1, The half cut area | region is formed in the inner surface of this hot cut hole formation half cut 18 An inner bonding portion 19 (a portion where the easy peeling layer 17 is not formed) is provided, and the inner surface sheet 13 and the surface sheet 12 are bonded to each other at the half cut region inner bonding portion 19. Therefore, the hot-cut hole forming half-cut 18 extends from the sealant layer 14 to the aluminum foil 15 and the adhesive layer 16, preferably further into the easily peelable layer 17.

4A and 4B, reference numeral 20 denotes a back surface of the inner surface sheet 13 on the side where the hot water cut hole pull tab 6 is provided, and the inner surface sheet 13 on both sides from the hot water hole pull tab 6. It is the half cut for the peeling start provided along the edge. Along the side edges extending on both sides from the corner 2A, and along the edges of the lid member 4, each is provided at a position of about 2/3,
The end reaches the edge of the inner sheet 13. Similar to the hot water cut hole forming half cut 18, the sealant layer 14 reaches the aluminum foil 15, the adhesive layer 16, and preferably further into the easily peelable layer 17.

Moreover, in FIG. 4 (A), 21 is a surface sheet folding display line, and is printed on the surface sheet 2 facing the corner 2A. More specifically, it is provided so as to connect a portion reaching about 2/3 of the side edge extending to both sides from the corner 2A, that is, the end vicinity of the half-cut 20 for peeling start. Therefore, this surface sheet folding display line 21 is provided along the end edge of the easy peel region L1 on the side where the unsealing pull tab 5 is provided, corresponding to the easy peel region L1.

Next, the concrete structure of each raw material which comprises the said container 1 for packaging is shown.
First, the surface sheet 12 has a surface excellent in printability, for example, a basis weight of 5
One-sided art paper and double-sided art paper with a thickness of about 0 to 150 g / m ² are preferable, and coated paper and high-quality paper having the same thickness can also be used.

Further, a polyethylene terephthalate (PEТ) film having a thickness of about 12 μm may be used instead of the paper layer or on the paper layer, and the back surface thereof may be printed by a gravure printing method.

The adhesive layer 16 for bonding the top sheet 12 and the inner sheet 13 is preferably a sand laminate by hot melt extrusion of, for example, polyethylene, ionomer, or polypropylene resin in consideration of the production amount of the lid 4. , But is not limited to this,
Various adhesives, such as two-component curable urethane adhesives, polyester urethane adhesives, polyether adhesives, polyvinyl acetate adhesives, etc. used in dry lamination, can be used, gravure coating, roll coating The adhesive layer 16 can be formed by a method or the like.

In consideration of preservability such as light shielding properties and gas barrier properties with respect to the instant yakisoba noodles 7, it is common to use a 5-20 μm aluminum foil 15 as a barrier layer on the top sheet 12, and this aluminum foil 15 is In particular, as in the case of a packaging container with a hot water cutting function of the present invention, when a part is opened and peeled from the opening pull tab 5 side and hot water is poured, the lid material 4 is peeled and the state is maintained (dead) When it has holdability, it is preferably used because hot water can be poured safely and reliably.

As the sealant layer 14, for example, a linear low density polyethylene (
LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), polyolefin resin such as unstretched polypropylene (CPP) or ethylene / vinyl acetate copolymer (EVA), ethylene / acrylic acid copolymer (EAA), Films of ethylene copolymer resins such as ethylene methacrylic acid copolymer (EMAA) are used, but these polyolefin resins are made of polystyrene, polybuden, etc., especially considering low temperature sealing properties and peel-opening properties (easy peel properties). A hot melt adhesive made of an ethylene / vinyl acetate copolymer resin, an ethylene / acrylic acid copolymer resin, or the like in addition to a mixture of incompatible components with the polyolefin resin is applied in an amount of 15 to 25 g / m ^2. It can be provided at a degree.

Moreover, as a base material which peels the surface layer which comprises the inner surface sheet 13, it uses suitably as a base material which a biaxially-stretched polypropylene (OPP) film about 6-25 micrometers in thickness peels at the interface with the adhesive bond layer 16. Can do.

Further, as a substrate for exfoliating constituting the inner sheet 13, a basis weight of 100 g / m ² about quality paper such as uncoated paper, or coated paper, but art paper such as coated paper and the like, especially delamination As the base material that is easy to do, non-coated paper such as the above-mentioned fine paper can be suitably used.

Furthermore, as the container body, a molded heat insulating material is used, for example, a thickness of 10 mm.
A foamed polystyrene sheet having a degree can be obtained by a vacuum forming method. Further, for example, a paper container is obtained by adhering and fixing a heat insulating sheet in which a heat insulating material with a single-side embossed liner paper is attached to the outer surface of a paper cup body including a paper side wall and a paper bottom wall. What was used as the main body 2 can also be used.

A method of using the packaging container 1 shown in the first embodiment will be described below.
First, the pull pull tab 5 on the adhesion region L2 side is pulled up, and the inner surface sheet 13 on the adhesion region L2 side is partially peeled off from the flange 3 of the container body 2 to open and form an injection port. After injecting hot water, the opening pull tab 5 on the outer peripheral surface of the lid 4 is covered again by folding it outside the flange 3, and left for a few minutes to instantly prepare instant yakisoba noodles 7 in the container body 2. Loosen softly.

Then, as shown in FIGS. 5 and 6, the hot water hole pull tab 6 on the outer periphery of the easy peeling region L1 is pulled up to peel the surface sheet 12 of the easy peeling region L1 from the inner surface sheet 13, and this surface. The inner sheet 13 in the half cut 18 region for forming the hot water cut hole adhering to the sheet 12 is cut off, and the oval stable hole cut hole 11 as shown in the figure appears on the inner surface sheet 13. Then, the container body 2 is tilted to discharge the hot water inside from the hot water cut-out hole 11. This discharge of hot water enables efficient and quick hot water discharge because the hot water cut holes 11 are arranged radially. Moreover, the hot water cutting hole 11A is made into two holes, and these two holes are provided corresponding to the upper end 10B of the agglomerated water channel 10, so that the hot water property, that is, the hot water speed is improved. In particular, the hot water that is about to end the discharge and still remains in the inner part of the container body 2, as shown in FIG. 3, has two holes at the tip straight from the upper end 10 </ b> B through the condensed water channel 10. Since it flows down to the cut hole 11A, the hot water performance can be further improved.
In addition, the presence of the shallow portion 8 and the weir 9 can effectively improve the risk of the contents leaking from the hot water cut-out hole 11, and the content can be appropriately dammed without further flowing down to the hot water cut-out hole 11 side. It can be stopped, and efficient discharge of hot water and improvement of hot water draining performance can be achieved.

(Test example)
Next, the result of the performance test of the packaging container 1 according to the present invention will be shown below.
The following procedure was used as an evaluation sample.
Lid A. The structure provided with the hot water cutting hole 11 which made the front-end | tip two holes based on this invention. A structure in which the hot water cutting hole 11A at the tip of A is made one hole. D. Structure with reduced total number of hot water cutout holes in A. A structure in which the direction of the hot water cutting hole of A is straight in the direction of hot water. The structure provided with the shallow part 8, the weir 9, and the condensed water channel 10 which concern on this invention. C. Structure excluding A weir 9 Traditional ordinary square container structure

The above-described lid material samples A to D and container body samples A to C are prototyped, and the prototype lid material and container body sample are combined with each other, and the rate of hot water, the outflow of contents, and the remaining three Experiments were performed on two items.
The hot water removal rate is evaluated on a 5-stage scale, and the smaller the number, the better the hot water removal performance (higher water removal rate). Further, the contents outflow and the remaining hot water were determined visually.
The results were as shown below.
1. A-A: 1, no, almost none2. AB: 2, small amount, almost none A-C: 3, exit, small amount of hot water remaining 4. B-A: 4, no, almost none C-A: 5, no, almost none D-A: 2, no, almost none

As understood from the above experimental results, the packaging container according to the present invention, that is, the A-
The combination of A proved to be superior in all aspects of hot water speed, content spillage and hot water residue.

(Example 2)
The configuration shown in FIG. 7 shows an example when the container body 2 is circular, and the circular container body 2
A shallow crescent-shaped portion 8 having a plan view crescent shape is formed on one side, a weir 9 is provided on the shallow portion 8, and a condensed water channel 10 is provided on both sides of the shallow portion 8. Hot water cut-off hole 1 provided in the lid 4
1 and the relative relation between them and the condensed water channel 10 are the same as those in the first embodiment shown in FIGS. In addition, as for the operational effect, a preferable result equivalent to the result shown in the first embodiment was obtained.

The use of the container of the present invention is not limited to packaging of instant fried noodles, but packaging of dried vegetables and seaweeds that have been reconstituted in hot water, and further processed to be eaten by washing in water. It can also be used for packaging such as soba.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway schematic diagram illustrating a first embodiment of a packaging container according to the present invention and showing a characteristic configuration thereof. It is AA sectional drawing in FIG. In the BB expanded sectional view in FIG. 1, the action state of hot water cutting is also shown. The whole structure of the packaging container shown in FIG. 1 is shown, (A) is a partially cutaway whole plan view, and (B) is an enlarged cross-sectional view of a lid used for this container. It is explanatory sectional drawing of an effect | action of the packaging container shown in FIG. It is effect | action explanatory drawing which shows the condition of the hot water supply of the packaging container shown in FIG. It is a whole top view which shows the 2nd Example of the packaging container of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Packaging container 2 ... Container body 2A ... Corner 2B ... Peripheral wall 2C ... Bottom 3 ... Flange 4 ... Cover material 5 ... Opening pull tab 6 ... Hot water hole pull tab 7 ... Food contained 8 ... Shallow part 9 ... Weir 10 ... Aggregating water channel 11 ... Hot hole L ... Virtual line segment L1 ... Easily peeled area L2 ... Adhesive area

Claims (3)

A lid is attached to the opening edge of the container body, the opening is sealed with the lid, and food is stored in the container body, and a shallow portion is provided inside the opening of the container body. There is a weir in the shallow section to prevent the outflow of food when liquid is discharged, and the both sides of the shallow section bulge further outward than the position of the inner surface of the peripheral wall of the container body. While a condensed water channel is provided, the lid member is provided with a number of hot water holes including a portion corresponding to the shallow portion,
Among the many hot water cut holes, a pair of hot water cut holes corresponding to the shallow portion are provided on the left and right sides of the weir, and each is opened corresponding to the condensed water channel. . The shallow portion is provided with its rising surface on the same vertical surface as the inner surface of the peripheral wall of the container body, and the shallow portion is provided to bulge further outward than the inner surface of the peripheral wall of the container body. Packaging container. The agglomerated water channel has a lower end lower than the shallow portion and is on the inner surface of the peripheral wall of the container body, and an upper end is located at the same position as the upper surface of the shallow portion and further outward than the rising surface of the shallow portion. The packaging container according to claim 1, wherein the packaging container is formed so as to be positioned.

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