JP5613555B2 - Fluid packaging, food containers, food sets in containers - Google Patents

Description

  The present invention relates to a fluid package for packaging a fluid represented by a liquid seasoning and the like, and a food container and a food set containing the container partially using the same.

  2. Description of the Related Art Conventionally, various fluid packaging bodies have been proposed in which a fluid such as a liquid seasoning is stored and can be discharged to the outside as necessary. Generally, this type of package has a structure in which a package body made of a resin material having a fluid storage recess and an upper lid made of a relatively hard resin material that closes the upper surface side of the package body. doing. A thin cut is formed at a substantially central portion of the upper lid, and, for example, a hook-shaped protrusion is formed. And when such a package body is picked with a finger | toe and a top cover is mountain-folded along a cut | interruption, a projection part will fracture | rupture and open. As a result, the fluid in the fluid storage recess is discharged outside the package.

  Since the package having the above structure can be easily opened with one hand, it is excellent in that the contents can be completely pushed out without soiling the hand, unlike conventional bags and cups. Therefore, such a very convenient package is widely used particularly as a food container. In addition, the package of the said structure is disclosed also in some conventional gazettes (for example, refer patent documents 1-3).

Japanese Patent No. 2584253 Japanese Patent No. 3140016 Japanese Patent No. 4458595

  However, these conventional packaging bodies are common in that the upper lid is formed using a hard resin material. For this reason, there are drawbacks in that the amount of resin used tends to increase during production and the material cost increases. In addition, in order to fold a hard upper lid, there is a certain amount of force, so it is essential to make a thin cut in the upper lid in advance. In addition, it is necessary to form a hook-shaped protrusion on the upper lid. For this reason, a processing process becomes complicated and tends to be expensive. In addition, if the corners of the hard upper cover are left sharp, the user's hand may be damaged, which necessitates complicated processing steps such as trimming the corners. This also increases costs. .

  The present invention has been made in view of the above-mentioned problems, and the object thereof is to provide a fluid contained therein, although it can be manufactured at a relatively low cost without going through complicated processing steps. An object of the present invention is to provide a fluid packaging body that can be easily and reliably discharged to the outside. Another object of the present invention is to provide a food container and a food set with a container provided with such an excellent fluid package.

  In view of the above-mentioned problem of cost reduction, the inventors of the present application focused on the resin material itself and made trial and error on the change. As a result, the present invention is not a hard and dense resin material and is not normally used in this type of fluid packaging. I came up with an alternative to foamed resin. That is, the foamed resin is inherently soft, but it has an advantage that it can be processed into a sheet that is somewhat hard. In addition, when a foamed resin is used, the amount of resin used is extremely small as compared with a hard and dense resin, which has the advantage of leading to cost reduction. Therefore, the inventors of the present application have further studied earnestly and have come up with means [1] to [8] for solving the above-mentioned problems. These are listed below.

  [1] A fluid packaging body comprising a packaging body body made of a resin sheet and having a fluid housing recess opening at a main surface, and a sealing material that covers and seals the main surface side of the packaging body body. The resin sheet is a foamed resin sheet, and the package body is provided with a planned folding line when the valley folds to the main surface side, and a cleavage groove that communicates with the fluid storage recess It is arranged so as to cross the planned bending line, and is configured so that the folding line crossing part of the cleavage groove can be cleaved by valley-folding the package body along the planned bending line. A fluid packaging body characterized by comprising:

  Therefore, according to the invention described in the means 1, when the package body is valley-folded along the planned folding line, the planned folding line crossing site of the cleavage groove arranged to cross the planned folding line is cleaved. . As a result, the fluid stored in the fluid storage recess of the package body reaches the cleavage site via the cleavage groove and is discharged from the package body to the outside. In this case, since the package body is made of a foamed resin sheet, the package body is relatively easily folded into the main surface side without providing a thin cut, which was essential when using a hard resin material. be able to. Therefore, the fluid stored inside can be discharged to the outside easily and reliably. Further, according to the package body made of the foamed resin sheet, the amount of resin used is extremely small compared to the conventional product, and can be manufactured at a relatively low cost. In addition, the foamed resin sheet eliminates the need for trimming because there is no risk of injury to the hand, and also eliminates the need for cuts, making it possible to manufacture the package body at low cost without complicated processing steps. Can do. In addition, since both the fluid storage recess and the cleavage groove are formed on the packaging body side and the fluid is discharged from the packaging body side, the sealing material side that functions as the upper lid is folded and cleaved. There is no need to let them. Therefore, it is not necessary to form cuts or hook-shaped protrusions on the sealing material, and the sealing material can have a simple structure. This also leads to a reduction in manufacturing cost. In addition, the “bending planned line” in the present invention means an imaginary line that serves as a reference at the time of folding, and it is essential that an actual line is drawn at a predetermined location in the package body. It is not something to do. However, this does not prevent the actual line from being drawn. In addition, since the conventional product adopts a structure in which the fluid storage parts are pressed against each other during bending to extrude the fluid, even a highly viscous fluid can be easily discharged, but the fluid packaging of the present invention Since the fluid storage part is provided on the mountain fold side at the time of bending, it is not a structure in which the fluid storage parts are pressed against each other as in the conventional product. However, since the foamed resin is highly elastic and easily stretched, it can be pushed out with a finger or the like from the outside during bending, and even a highly viscous fluid can be discharged without any problem.

  [2] In the means 1, the foamed resin sheet has an orientation in which the major axis direction of the bubbles is arranged along substantially the same direction, and the planned bending line is formed of the bubbles in the foamed resin sheet. A fluid packaging body, wherein the fluid packaging body is set to form an angle of ± 45 ° or less with respect to the orientation direction.

  As a result of investigation by the inventors of the present application, it has been found that the foamed resin has a strong elasticity and is easily stretched as compared with a hard resin material, so that the protruding portion may be well broken and not be broken at the time of bending. Moreover, even if it was able to fracture to some extent, it was also found that if the shape of the cleavage site is not sharp, it may lead to the generation of foam of foamed resin.

  Usually, the raw material of a foamed resin sheet is produced by extruding and winding up a foamed resin as a raw material into a sheet shape. At that time, as the foamed resin is stretched in the winding direction of the original sheet (longitudinal direction of the original fabric), the bubbles in the foamed resin become longer in the same direction as that, and the shape of the rotating ellipsoid (or rotating ellipse) Body shape). That is, having a state in which the major axis direction of the bubbles is arranged along the winding direction of the original sheet is defined as “having (original) orientation”. Accordingly, the term “bubble orientation direction” means the long axis direction of the bubbles, that is, the winding direction of the original fabric sheet (longitudinal direction of the original fabric). The inventors of the present application have made trial and error in view of the above-described properties that occur when the foamed resin is molded into a sheet, and the smaller the absolute value of the angle of the planned bending line with respect to the orientation direction of the bubbles (that is, ± It was found that the closer to 0 °, the lower the bending strength, and the sharp cleavage (that is, the linear cracking caused by the cracking). Conversely, it was also found that the greater the absolute value of the angle of the planned bending line with respect to the orientation direction of the bubbles (that is, the closer to ± 90 °), the greater the bending strength and the less likely to be sharply cleaved.

  According to the invention described in the means 2 based on such knowledge, the expected folding line when the package body is valley-folded to the main surface side is ± 45 with respect to the orientation direction of the bubbles in the foamed resin sheet. Since the angle is set to be within an angle, the bending strength when the foamed resin sheet is bent can be relatively small. For this reason, even if it does not bother to provide a cut, the package body can be easily valley-folded to the main surface side with a small force, and the cleavage site can be cleaved sharply. Therefore, the fluid accommodated inside can be discharged to the outside easily and reliably. The angle formed by the bent line with respect to the orientation direction of the bubbles is preferably within ± 30 °, more preferably within ± 20 °, still more preferably within ± 10 °, and particularly preferably 0 °.

  [3] In the means 1, the foamed resin sheet has an orientation in which the long axis direction of the bubbles is arranged along substantially the same direction, and at least the bent line crossing part in the cleavage groove is the A fluid package characterized in that orientation is reduced or lost.

  According to the invention described in Means 3, since at least the bending line crossing part in the cleavage groove has the orientation reduced or lost, the elasticity is weak and it is difficult to extend compared to the part having the orientation. Therefore, when stress concentrates on the part at the time of valley folding, the part is preferentially broken and sharply cleaved. Therefore, the fluid can be discharged to the outside more easily and reliably without generating a residue of foamed resin. The technique for reducing or losing the orientation of the foamed resin sheet is not particularly limited. For example, there is thermal processing in which a heat tool is brought into contact with a predetermined portion of the foamed resin sheet for a short time. According to this thermal processing, a predetermined part of the foamed resin is once melted and then solidified, whereby bubbles at the part are reduced (reduced) or disappeared, and orientation is reduced or lost accordingly. For example, the degree of orientation reduction is preferably 60% or less, more preferably 30% or less of the bubbles on the surface of the part. Note that the reduction or loss of orientation is not essential until it is applied to the entire portion of the opening groove that crosses the planned bending line, and the portion where cleavage occurs first during valley folding (i.e., the highest stress occurs during valley folding). It is only necessary that the orientation of the added portion) is reduced or lost.

  In addition to the inventions described in the means 2 and 3, for example, when the thickness of the foamed resin sheet is 3 mm or less, the depth of the cleavage groove is 3 mm or more (preferably 5 mm or more, particularly 7 mm or more). And the length of the cleavage groove is preferably 10 mm or more. According to such a dimension setting, the cleavage groove is further broken and becomes easy to be cleaved, and it is possible to more reliably prevent the occurrence of debris from the foaming resin.

  [4] The fluid packaging body according to any one of the means 1 to 3, wherein the sealing material is a substantially flat resin film welded to the main surface side of the packaging body.

  Therefore, according to the invention described in the means 4, since the sealing material functioning as the upper lid is a substantially flat resin film, it has a very simple structure with no cuts or protrusions, and the processing cost can be kept low. Moreover, since it is not necessary to bend and cleave the sealing material side, a thin resin film can be used, and the material cost can be kept low. Furthermore, by welding such a resin film to the main surface side of the package body, the fluid can be reliably stored while preventing leakage. In addition, if the resin film functioning as the upper lid is substantially flat, for example, there is an advantage that the stability when a plurality of fluid packaging bodies are stacked and arranged is increased.

  [5] The fluid packaging body according to any one of means 1 to 4, wherein a bottom portion of the fluid housing recess is inclined toward the cleavage groove.

  Therefore, according to the invention described in the means 5, since the bottom portion of the fluid storage recess is inclined toward the cleavage groove, the fluid is smoothly guided from the fluid storage recess toward the cleavage site. Therefore, the fluid can be discharged to the outside more easily and reliably.

  [6] In any one of the means 1 to 5, a folding groove or a perforation for folding that opens on the main surface side is formed on at least a part of the planned folding line in the package body. A fluid packaging body characterized by being made.

  Therefore, according to the invention described in the means 6, it is possible to accurately and extremely easily along the planned folding line by forming the folding groove or the perforation for folding at least in part on the planned folding line. Can be folded into a valley. Therefore, the cleavage groove can be reliably cleaved at a desired site, and the fluid can be discharged to the outside more easily and reliably. In addition, such a folding groove or a perforation for bending also has an advantage that it becomes easy for the user to recognize the presence of the planned folding line during folding.

  [7] A food container comprising a container main body having a food storage recess and a lid for closing the container main body, wherein the fluid packaging body according to any one of means 1 to 6 is provided on the lid. Characteristic food container.

  Therefore, according to the invention described in the means 7, the fluid can be easily and reliably discharged from the fluid package provided on the lid. Therefore, it is possible to pour the fluid quickly into the food stored in the food storage recess without contaminating the hands. Therefore, unlike the case where the fluid is stored and attached in a small container such as a small bag, the troublesome work of breaking the pouch and pouring the fluid becomes unnecessary, and the drawbacks such as dirty hands are also eliminated. As a result, it is possible to provide a highly convenient food container. Furthermore, since the lid body also serves as a fluid package, there is an advantage that generation of excess waste such as a small bag is suppressed. Further, when a sachet or the like is used, complicated steps such as a sachet manufacturing process and a sachet attaching process are required. However, according to the invention described in the means 7, a simple manufacturing process can be realized. That is, after filling the food storage recess of the food container flowing through the line, after closing the lid, the fluid storage recess provided in the lid is filled with the fluid and sealed with a sealing material. This process can be adopted. Of course, a step of filling the food storage recess after filling and sealing the fluid is also possible.

  In the food container, the container main body and the lid may be configured as separate bodies, but may be configured as an integral unit. At this time, if a perforation is made at the boundary between the container body and the lid body, the lid body can be easily separated from the container body, and the lid body provided with the fluid packaging body can be easily folded and handled easily. Become. In addition, when the container body is closed with the lid, it is preferable that the packaging body body of the fluid packaging body faces the food storage concave portion and the upper lid faces the opposite side. In this case, the entire package body is covered with the food storage recess and is not exposed from the food container. Therefore, it is possible to prevent damage or deformation of the fluid storage recess or the cleavage groove of the package body. Moreover, since the cleaving groove faces the food storage concave portion in advance, the fluid can be discharged as it is without changing the direction. Therefore, it is very convenient to quickly pour a fluid into food.

  [8] A food in a container in which solid food is stored in the food storage recess of the container body in the food container according to means 7, and a fluid seasoning is stored in the fluid storage recess of the fluid package. set.

  Therefore, according to the invention described in the means 8, the fluid seasoning can be easily and reliably discharged from the fluid package provided on the lid. Therefore, it is possible to pour the fluid seasoning into the solid food stored in the food storage recess quickly and without soiling the hands. Therefore, unlike the case where the liquid seasoning is stored and attached in a small container such as a sachet, the troublesome work of breaking the sachet and pouring the liquid seasoning becomes unnecessary, and there are disadvantages such as dirty hands. It will be resolved. As a result, it is possible to provide a highly convenient food set in a container.

  Therefore, according to the first to sixth aspects of the present invention, the fluid contained in the inside can be easily and reliably obtained despite the fact that it can be manufactured at a relatively low cost without complicated processing steps. A fluid package that can be discharged to the outside can be provided. According to the invention of Claims 7 and 8, as a result of providing such an excellent fluid packaging body on the lid, a highly convenient food container and food set in a container can be provided.

The partially broken top view which shows the liquid seasoning packaging body (fluid packaging body) of one Embodiment which actualized this invention. The front view which shows the liquid seasoning packaging body of the said embodiment. AA sectional view taken on the line AA of FIG. The right view which shows the liquid seasoning package of the said embodiment. FIG. 3 is a sectional view taken along line BB in FIG. 1. The CC sectional view taken on the line of FIG. The top view which shows the package body of the said embodiment. The front view which shows a mode when the said liquid seasoning package is bent. The front sectional view which shows the food container provided with the said liquid seasoning packaging body as a cover body. The top view which shows the package body of the liquid seasoning package in another embodiment. The top view which shows the package body of the liquid seasoning package in another embodiment. The top view which shows the package body of the liquid seasoning package in another embodiment. The top view which shows the package body of the liquid seasoning package in another embodiment. The top view which shows the package body of the liquid seasoning package in another embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment in which the present invention is embodied in a liquid seasoning package will be described in detail with reference to FIGS. As shown in FIG. 1 and the like, the liquid seasoning package 11 according to the present embodiment stores therein a liquid seasoning 31 that is a kind of fluid, and discharges the liquid seasoning 31 from a predetermined part to the outside as necessary. It is a packaging body that can. The liquid seasoning package 11 basically has a structure in which a package body 12 and a resin film 13 that closes the main surface 12a side of the package body 12 are combined.

  As FIG.1, FIG.7 etc. show, the package main body 12 of this embodiment is a member made from the foamed resin sheet 14 which exhibits a rectangular shape by planar view. The foamed resin sheet 14 preferably has a thickness of 3 mm or less, and here a sheet having a thickness of about 1.5 mm is used. As the resin constituting the foamed resin sheet 14, a foamed polystyrene resin is used, but a foamed polyethylene resin, a foamed polyurethane resin, or the like may be used. And in this foamed resin sheet 14, the direction of a short side (namely, the up-down direction of FIG. 7) is the winding direction (longitudinal direction of the original fabric) of the original fabric sheet. As conceptually shown in a circle C <b> 1 in FIG. 7, the foamed resin sheet 14 has a large number of bubbles 25 inside. These bubbles 25 are rotating ellipsoidal (or spheroid) independent bubbles, and the major axis is arranged along a certain direction. This direction is referred to as “the orientation direction D1 of the bubbles 25”. Therefore, in this foamed resin sheet 14, it can be grasped that the bubbles 25 are oriented in the direction of the short side.

  And in this embodiment, the folding line L1 at the time of valley-folding the package main body 12 to the main surface 12a side passes through the center part of the foamed resin sheet 14, and becomes parallel to the orientation direction D1 of the bubble 25. It is set (see FIG. 7). The expected bending line L1 is set so as to form an angle θ within ± 45 ° with respect to the orientation direction D1 of the bubbles 25 in the foamed resin sheet 14. In the present embodiment, since the bending line L1 and the orientation direction D1 of the bubbles 25 are parallel, θ = 0 °.

  As shown in FIGS. 1 to 7, the package body 12 of the present embodiment has a pair of fluid storage recesses 21 that open on the main surface 12 a and one cross-section that also opens on the main surface 12 a. And a V-shaped cleavage groove 22. The cleavage groove 22 and the pair of fluid storage recesses 21 are connected to each other. The pair of fluid housing recesses 21 and the cleavage grooves 22 are formed by molding a foamed resin sheet 14 that was originally flat and bulging a predetermined portion to the back side. The cleavage groove 22 is located at the center of the foamed resin sheet 14 and crosses the planned cutting line L1. Therefore, the cleavage groove 22 extends along a direction orthogonal to the orientation direction D1 of the bubbles 25. The pair of fluid storage recesses 21 are respectively disposed on both sides of the cleavage groove 22. In addition, although a magnitude | size and a shape are equal, a pair of fluid accommodation recessed part 21 in this embodiment is not necessarily so. Further, in the plan view of the foamed resin sheet 14, the fluid storage recess 21 has a shape that gradually decreases in width toward the cleavage groove 22.

  As shown in FIG. 3 and the like, the bottom 24 of the fluid accommodation recess 21 is inclined by about 5 ° to 30 ° toward the cleavage groove 22. Such an inclination may not be provided in the whole bottom part 24, and should just be provided in a part. The fluid storage recess 21 is deepest at the site connected to the cleavage groove 22. As shown in FIG. 2, the depth of the deepest portion of the fluid accommodation recess 21 is not particularly limited, but may be set to be 5 mm or more (in this embodiment, about 8 mm). The depth of the shallowest portion of the cleavage groove 22 is not particularly limited, but may be set to be 5 mm or more (about 7 mm in this embodiment). The length of the cleavage groove 22 is not particularly limited, but may be set to be 10 mm or more (about 12 mm in this embodiment).

  As shown in FIG. 7, in the plan view of the foamed resin sheet 14, a part that crosses the planned bending line L <b> 1 in the cleavage groove 22 (hereinafter, the planned bending line crossing part 23) is a valley fold. It is the part where stress is most easily applied. At least the planned bending line crossing region 23 in the cleavage groove 22 has a reduced or lost orientation. Here, the foamed resin sheet 14 in which the fluid containing recess 21 and the cleavage groove 22 are formed is prepared, and the bent line crossing portion 23 (specifically, the center of the bottom of the cleavage groove 22 to which stress is most easily applied). A method of applying heat processing to P1) is adopted. In this thermal processing, a hot roller is used as a heat tool, and the hot roller is brought into contact with the bottom center portion P <b> 1 of the cleavage groove 22 when the package body 12 is conveyed.

  As shown in FIGS. 1, 5, 7, and the like, two bending grooves 32 that are open on the main surface 12 a side are formed on the planned bending line L <b> 1 in the package body 12. A pair of bent grooves 32 are arranged on both sides of the cleavage groove 22. The length of each bent groove 32 is set to about 1/3 of the length of the short side of the foamed resin sheet 14. That is, the bending groove 32 is not formed over the entire width of the foamed resin sheet 14 along the planned bending line L1, but is formed with a length of about 2/3 thereof. The bent groove 32 may be formed over substantially the entire width of the foamed resin sheet 14 along the planned bending line L1. However, in order to prevent leakage of the liquid seasoning 31, it is preferable that the bent groove 32 and the cleavage groove 22 are not connected. Further, these bent grooves 32 do not have to be as deep as the fluid storage recess 21 and the cleavage groove 22 and are 3 mm or less (in this embodiment, about 1 mm). In addition, unlike the bending line crossing site | part 23, it is desirable to maintain the orientation rather than the bending groove 32. FIG. The reason is that it is possible to prevent the bent groove 32 from being broken during valley folding.

  As shown in FIGS. 1 to 6, a resin film 13 is thermally welded to the main surface 12 a side of the package body 12 as a sealing material having flexibility and liquid impermeability. The resin film 13 is not particularly subjected to uneven processing, and has a substantially flat and simple configuration. As resin which forms the resin film 13, general purpose resin, such as polyethylene and a polypropylene, can be used, for example. The resin film 13 is heat-sealed so as to cover the entire main surface 12a, thereby sealing the liquid seasoning 31 in the fluid storage recess 21. The resin film 13 can be selected regardless of whether it is transparent or opaque. For example, in the former case, the state of the liquid seasoning 31 and the like can be visually confirmed or confirmed by an inspection machine even after storage. In the latter case, deterioration of the liquid seasoning 31 due to light can be prevented.

  Next, the usage method of the liquid seasoning package 11 of this embodiment is demonstrated based on FIG. First, both short sides of the liquid seasoning package 11 are picked with a finger so that the back side of the package body 12 in which the fluid storage recess 21 and the cleavage groove 22 are formed faces downward. In this state, force is applied to the finger, and the package body 12 is valley-folded along the planned folding line L1 toward the main surface 12a (see FIG. 8). That is, it is bent in the opposite direction to the conventional product. Then, the bending line crossing part 23 of the cleavage groove 22 formed in the package body 12, particularly the bottom center part P <b> 1 is pulled in the left-right direction, and stress concentrates on the part, so that the bottom center part P <b> 1 is another part. Break preferentially over the part and cleave sharply. As a result, the liquid seasoning 31 is discharged to the outside of the liquid seasoning package 11. In this embodiment, the planned bending line L1 and the orientation direction D1 of the bubbles 25 are parallel (θ = 0 °), so that the bending line crossing portion 23 of the cleavage groove 22 can be cleaved relatively sharply. However, when it is desired to further sharply cleave or when θ is large (for example, an angle larger than ± 45 °), the orientation can be reduced or lost.

  FIG. 9 shows a food container 51 including the liquid seasoning package 11 according to this embodiment as a lid 42. The food container 51 includes a container body 41 having a food storage recess 43. A solid food 44 is stored in the food storage recess 43. The liquid seasoning package 11 that is the lid 42 closes the container body 41 by being disposed in the opening of the container body 41. As a result, a food set in a container is configured in which the fluid seasoning 31 and the solid food 44 are individually stored in the food container 51. Here, as a suitable combination of “fluid seasoning 31 and solid food 44”, pudding and caramel, ice cream and fruit sauce, tokoroten and tokoroten sauce, natto and natto sauce, soba and soba soup, salad and dressing, Takoyaki and mayonnaise, fried chicken and ketchup, sausage and mustard, vinegar soy sauce with dumplings and chili oil, fried shrimp and lemon juice, pork cutlet and miso soup.

  Therefore, according to the present embodiment, the following effects can be obtained.

  (1) According to the liquid seasoning package 11 of the present embodiment, the liquid seasoning 31 stored in the fluid storage recess 21 is separated from the liquid seasoning package 11 from the cleavage location generated in the cleavage groove 22. Can be discharged. In this case, since the package body 12 is made of the foamed resin sheet 14, the package body 12 can be relatively easily moved to the main surface 12a side without providing a thin cut which is essential when a hard resin material is used. Can be folded into a valley. Therefore, the liquid seasoning 31 accommodated in the inside can be easily and reliably discharged to the outside. Further, according to the package body 12 made of the foamed resin sheet 14, the amount of resin used is extremely small compared to the conventional product, and can be manufactured at a relatively low cost. Further, if the foamed resin sheet 14 is used, there is no fear of damaging the hand, so that trimming is not necessary, and cut processing is also unnecessary, so that the package body 12 can be manufactured at low cost without complicated processing steps. can do. In addition, since both the fluid storage recess 21 and the cleavage groove 22 are formed on the package body 12 side and the liquid seasoning 31 is discharged from the package body 12 side, a seal that functions as an upper lid is adopted. There is no need to bend and tear the material side. Therefore, it is not necessary to form cuts or hook-shaped protrusions on the sealing material, and the sealing material can have a simple structure. This also leads to a reduction in manufacturing cost.

  (2) In the liquid seasoning package 11 of the present embodiment, the planned bending line L1 when the package body 12 is valley-folded to the main surface 12a side is defined with respect to the orientation direction D1 of the bubbles 25 in the foamed resin sheet 14. The angle θ is set to 0 °. Therefore, the bending strength when bending the foamed resin sheet 14 can be minimized. Therefore, even if it does not bother to provide a cut, the package body 12 can be easily valley-folded to the main surface 12a side with a small force, and the cleavage site can be cleaved sharply. Therefore, the liquid seasoning 31 stored in the inside can be easily and reliably discharged to the outside.

  (3) In the liquid seasoning package 11 of this embodiment, the orientation of the bending line crossing region 23 in the cleavage groove 22 is reduced or lost. Therefore, the bending line crossing part 23 is less elastic and less likely to extend than the part having orientation. Therefore, when stress concentrates on the part at the time of valley folding, the part is preferentially broken and sharply cleaved. Therefore, the liquid seasoning 31 can be discharged to the outside more easily and reliably without generating a residue of foamed resin.

  (4) In the liquid seasoning package 11 of the present embodiment, since the sealing material functioning as the upper lid is the substantially flat resin film 13, it has a very simple structure with no cuts or protrusions, and the processing cost is kept low. be able to. Moreover, since it is not necessary to bend and cleave the sealing material side, the thin resin film 13 can be used, and the material cost can be kept low. Furthermore, by welding such a resin film 13 to the main surface 12a side of the package body 12, the liquid seasoning 31 can be reliably stored while preventing leakage. Moreover, when the resin film 13 functioning as an upper lid is substantially flat, for example, there is an advantage that the stability is increased when a plurality of liquid seasoning packages 11 are stacked and arranged.

  (5) In the liquid seasoning package 11 of the present embodiment, the bottom 24 of the fluid containing recess 21 is inclined toward the cleavage groove 22. Therefore, the liquid seasoning 31 is smoothly guided from the fluid storage recess 21 toward the cleavage site. Therefore, the liquid seasoning 31 can be discharged to the outside more easily and reliably.

  (6) In the liquid seasoning package 11 of the present embodiment, the bent groove 32 is formed in advance on a part of the planned bent line L1. Therefore, the package body 12 can be valley-folded to the main surface 12a side accurately and extremely easily along the planned bending line L1. Therefore, the cleavage groove 22 can be reliably cleaved at a desired portion (that is, the bottom center portion P1), and the liquid seasoning 31 can be discharged to the outside more easily and reliably. In addition, such a bent groove 32 also has an advantage that the user can easily recognize the presence of the planned bending line L1 during bending.

  (7) Moreover, according to the container-containing food set of this embodiment shown in FIG. 9, the liquid seasoning 31 can be easily and reliably discharged from the fluid packaging body 11 with which the cover body 42 is provided. Therefore, the liquid seasoning 31 can be poured into the solid food 44 stored in the food storage recess 43 quickly and without soiling the hands. Therefore, unlike the case where the liquid seasoning 31 is stored and attached in a small container such as a sachet, the troublesome work of breaking the sachet and pouring the liquid seasoning 31 becomes unnecessary, and there are also drawbacks such as dirty hands. It will be resolved. As a result, a highly convenient food set in a container can be obtained. Furthermore, since the lid 42 also serves as the fluid package 11, there is also an advantage that generation of extra waste such as a small bag is suppressed. In addition, when using a sachet or the like, complicated processes such as a manufacturing process of the sachet and a sachet attaching process are required. However, if the food set in a container according to this embodiment is used, it can be a simple manufacturing process. Become. That is, after filling the food storage recess 43 of the food container body 41 flowing through the line with the solid food 44, the lid 42 is closed, and then the liquid storage recess 21 provided in the lid 42 is filled with the liquid seasoning 31. Then, an in-line process of sealing with the sealing material 13 can be employed. Of course, a step of filling the food containing recess 43 with the solid food 44 after filling and sealing with the liquid seasoning 31 may be used.

  (8) The container-containing food set is configured such that when the container body 41 is closed with the lid 42, the package body 12 of the liquid seasoning package 11 faces the food storage recess 43 side. In this case, the entire package body 12 is covered and protected by the food storage recess 43 and is not exposed to the outside of the food container 51. Therefore, breakage and deformation of the fluid storage recess 21 and the cleavage groove 22 of the package body 12 can be prevented in advance. Further, since the cleavage groove 22 faces the food storage recess 43 side in advance, the liquid seasoning 31 can be discharged as it is without changing the direction. Therefore, the liquid seasoning 31 can be poured quickly into the solid food 44, which is very convenient.

  In addition, you may change embodiment of this invention as follows.

  In the package body 12 of the above-described embodiment, the planned bending line L1 is set to make an angle θ of 0 ° with respect to the orientation direction D1 of the bubbles 25 in the foamed resin sheet 14. However, this angle θ is not limited to 0 °, and it is allowed to be set to an arbitrary angle θ as long as it is within ± 45 °. Incidentally, in the package body 12A of another embodiment shown in FIG. 10, this angle θ is set to ± 45 °.

  In the above embodiment, the package body 12 is provided with two fluid storage recesses 21, but the number of fluid storage recesses 21 is not limited to two, but only one or three or more. May be. For example, in the package body 12B of another embodiment shown in FIG. 11, only one fluid storage recess 21 is provided.

  In the above embodiment, only one scheduled cutting line L1 is set, but two or more can be set. When a plurality of planned cutting lines L1 are set, they may be parallel or not.

  -In the liquid seasoning package 11 of the said embodiment, the bending groove | channel 32 was previously processed and formed in a part on the bending expected line L1 as a structure for performing bending easily. Instead, for example, in the package body 12C according to another embodiment shown in FIG. 12, a folding sewing machine that penetrates the main surface 12a and the back surface of the foamed resin sheet 14 is partially formed on the bending line L1. The eyes 33 are processed and formed in advance. Even if it has such a structure, the package body 12 can be valley-folded to the main surface 12a side accurately and extremely easily along the planned bending line L1.

  -Although the resin film 13 was used as a sealing material in the said embodiment, things other than the resin film 13 may be used. That is, as long as it is thin to some extent and has flexibility and liquid impermeability, it is not necessarily made of resin. Examples of such a material include oil-impregnated paper, film-coated paper, metal laminate film, and metal foil.

  In the above embodiment, the same type of liquid seasoning 31 is stored in the plurality of fluid storage recesses 21, but different things (for example, soy sauce and vinegar, ketchup and mayonnaise, ketchup and mustard, etc.) are stored, You may make it mix when discharging by valley folding. In addition, when it is not desired to mix a plurality of fluids, the following structure is advantageous. For example, in the package body 12D of another embodiment shown in FIG. 13, two fluid storage recesses 21 are arranged in the same direction, and correspondingly, the cleavage grooves 22 are provided individually and in parallel. Therefore, each cleavage groove 22 is cleaved at the time of valley folding (that is, cleaved at different positions), and different types of liquid seasonings 31 can be discharged individually. Moreover, you may make it like the package body 12E of another embodiment shown in FIG. In the package body 12E, the two fluid storage recesses 21 face opposite directions and are slightly offset from each other in the short side direction of the foamed resin sheet 14. In addition, the cleavage grooves 22 are provided individually and in parallel corresponding to the two fluid storage recesses 21. Accordingly, each cleavage groove 22 is cleaved at the time of valley folding, and different kinds of liquid seasonings 31 can be discharged individually. In addition, according to this structure, since the cleavage groove | channel 22 can be made to adjoin, while being able to discharge two types of liquid seasonings 31 in a comparatively close position, it is set as the structure which is easy to avoid the enlargement of the whole. be able to.

  In the above embodiment, the present invention is embodied as a fluid package for storing the liquid seasoning 31, but for storing other fluids (for example, beverages such as juice, tea, milk, etc.) Can be embodied as Furthermore, it is permissible to embody the present invention for storing fluids other than food (for example, liquid cosmetics, liquid detergents, liquid pharmaceuticals, etc.).

Next, the technical ideas grasped by the embodiment described above are listed below.
(1) In any one of the means 1 to 8, the bent line is within ± 30 ° (preferably within ± 20 °, particularly preferably ±±) with respect to the orientation direction of the bubbles in the foamed resin sheet. It must be set to form an angle of 10 ° or less.
(2) In any one of means 1 to 8, the thickness of the foamed resin sheet is 3 mm or less, the depth of the shallowest part of the cleavage groove is 3 mm or more, and the length of the cleavage groove is 10 mm or more. about.
(3) In any one of the means 1 to 8, the depth of the part where the cleavage groove and the fluid storage recess are connected is deeper than the depth of the bending line crossing part in the cleavage groove. .
(4) In any one of means 1 to 8, there are a plurality of fluid storage parts.
(5) In any one of the means 1 to 8, the fluid storage part is disposed in a pair with the cleavage groove interposed therebetween.

DESCRIPTION OF SYMBOLS 11 ... Liquid seasoning packaging body as fluid packaging body 12,12A, 12B, 12C, 12D, 12E ... Packaging body 12a ... Main surface 13 ... Resin film as sealing material 14 ... (Foamed) resin sheet 21 ... Flow Animal storage recessed part 22 ... cleavage groove 23 ... bending line crossing part 24 ... bottom part of fluid storage recessed part 31 ... liquid seasoning as fluid seasoning 32 ... folding groove 33 ... perforation for folding 41 ... container body 42 ... Lid 43 ... Food storage recess 44 ... Solid food 51 ... Food container D1 ... Bubble orientation direction L1 ... Bending line θ ... Angle

Claims (8)

A fluid packaging body comprising a packaging body body having a fluid storage recess that is made of a resin sheet and that opens on a principal surface, and a sealing material that covers and seals the principal surface side of the packaging body body,
The resin sheet is a foamed resin sheet,
The package body is provided with a planned folding line when the valley is folded to the main surface side, and a cleavage groove communicating with the fluid storage recess is arranged so as to cross the planned folding line. ,
A fluid packaging body, wherein the packaging body main body is folded along the planned folding line so that a portion of the cleavage groove intersecting the folding line can be cleaved. The foamed resin sheet has an orientation in which the major axis direction of the bubbles is arranged along substantially the same direction,
The fluid packaging body according to claim 1, wherein the planned bending line is set to form an angle within ± 45 ° with respect to the orientation direction of the bubbles in the foamed resin sheet. The foamed resin sheet has an orientation in which the major axis direction of the bubbles is arranged along substantially the same direction,
2. The fluid package according to claim 1, wherein the orientation is reduced or lost in at least the bent line crossing portion in the cleavage groove.   The fluid packaging body according to any one of claims 1 to 3, wherein the sealing material is a substantially flat resin film welded to the main surface side of the packaging body. The fluid packaging body according to any one of claims 1 to 4, wherein a bottom portion of the fluid accommodation recess is inclined toward the cleavage groove. 6. A folding groove or a perforation for bending that is opened on the main surface side is formed on at least a part of the folding line in the package body. The fluid packaging body according to any one of claims.   A food container comprising a container body having a food storage recess and a lid for closing the container body, wherein the fluid packaging body according to any one of claims 1 to 6 is provided on the lid. Food container.   8. A food set in a container, wherein solid food is stored in the food storage recess of the container body in the food container according to claim 7, and fluid seasonings are stored in the fluid storage recess of the fluid package.

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