JP4683411B2 - A packaging bag in which the inner bag is neatly stored - Google Patents

Description

  The present invention relates to a packaging bag in which a plurality of inner bags are stored in an orderly manner in an outer bag, and an inner bag used therefor.

  Many products are sold with multiple products stored in one bag. In such a case, to prevent the entire product from being exposed to the open air at the time of opening, use multiple inner bags to seal the product one by one or in small portions, and at the time required. Often it can be opened in bags. In particular, such packaging forms are often used for products that require oxidative degradation and sanitary considerations after opening, such as foods and chemicals.

  At that time, a transparent plastic film is often used for the outer bag, so that the outer bag can be visually confirmed from the outside. In addition, a transparent plastic film is also used for the inner bag so that the contents themselves can be visually confirmed. This type of packaging can directly grasp the condition of the outer bag and contents at the time of purchase, giving consumers a sense of security, and encouraging purchasing by making the attractive appearance of the product visible. It also has the effect of improving.

  However, in the packaging form as described above using a combination of an outer bag and an inner bag, the inner bag is often simply put into the outer bag, and the inner bag moves within the outer bag during transportation. The corners of the inner bag end may hit other inner bags or outer bags, and the inner bag or outer bag may be damaged. In addition, when the contents are viewed through a transparent outer bag, the position of the product is biased in the outer bag, or the product is relatively large compared to the outer bag. However, there is a possibility that the consumer's willingness to purchase is reduced by giving a cluttered impression due to misalignment.

  In order to arrange the contents in order and not to move, special plastic trays are prepared and packaged, but it can only be applied when the inner bag is much smaller than the outer bag, There is a problem that much labor and cost are required for manufacturing and packaging.

Here, although there is no direct relationship with the packaging form and problems described above, a folded portion is formed in the lateral direction on the bottom side of the main body film on the front side, and between the folded portion of the main film on the front side and the bottom film. There has been disclosed a packaging bag in which an easy peel tape is interposed to allow the packaging bag to have a steam venting function and to release the internal pressure of the packaging body caused by microwave heating (see Patent Document 1).
JP 2005-59867 A

  In the present invention, when a relatively large product as compared with the outer bag is packaged in a plurality of inner bags, the products can be arranged in an orderly manner in the outer bag and are not easily displaced from each other even by transportation. It is an object to provide a packaging bag and an inner bag therefor.

  A first aspect of the invention is a packaging bag in which a plurality of predetermined inner bags sealed with contents are stored in a substantially rectangular outer bag, the inner bag comprising a substantially rectangular front film and a back surface. Each having a film and a belt-like portion protruding from the surface of the back film and extending in a direction substantially parallel to one side of the rectangle, and each of the inner bags of the number obtained by subtracting one from the predetermined number It is a packaging bag characterized by being sandwiched and arranged between the belt-like portion of the inner bag and the back film.

  Here, it is preferable that all of the inner bags are arranged in one or more rows with the front and back sides aligned in the direction. Moreover, it is preferable that the inner dimension of the said outer bag is a little larger than the outer dimension of the said arrange | positioned whole inner bag. Moreover, it is preferable that the said outer bag and the said inner bag are products made from a transparent film, and the said content is dried fish. Moreover, it is preferable that the inner bag is deaerated and packaged.

  The second of the invention is a predetermined number of inner bags having a substantially rectangular surface film and a back film, and a belt-shaped portion protruding from the surface of the back film and extending in a direction substantially parallel to one side of the rectangle. The contents of each of the inner bags are sealed, and each of the inner bags obtained by subtracting one from the predetermined number is disposed so as to be sandwiched between the belt-like portion of the other inner bag and the back film, and then The packaging bag manufacturing method is characterized in that the inner bag is disposed in a substantially rectangular outer bag.

  When the outer bag is divided into a plurality of inner bags and packaged, the products can be arranged in an orderly manner, and misalignment is less likely to occur due to transportation or the like. For this reason, the bag during transportation is less likely to be damaged, and when it is made visible through the outer bag, the appearance of the product inside is improved, so that the consumer's willingness to purchase can be promoted. In addition, when a paper box is used as the outer bag, a conventional dedicated tray is not required. Less labor and cost for packaging.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. In the packaging bag of the present invention, a plurality of inner bags are stored in a substantially rectangular outer bag. The material of the outer bag is not particularly limited, and may be transparent or opaque, but in order to be able to observe the state of the inner bag from the outside before opening, a transparent plastic film is used. Is preferred. The outer bag may be partially printed. As a form of the outer bag, a normal pillow bag, a three-side seal bag, a four-side seal bag, a gusset bag, and the like can be used without particular limitation, except for the dimensions required for packaging. If sealing in the outer bag is not particularly necessary or if you want to create a high-quality product, use a paper box as the outer bag, and use a transparent plastic window that allows you to observe the inside of the box, such as the lid of the paper box. You may use what was provided.

  The outline of the outer bag is substantially rectangular, and the outer bag is substantially rectangular before storing the inner bag, or is substantially rectangular when the outer bag is folded flat before use. When the outer bag has a three-dimensional shape from the beginning, it means either a substantially rectangular parallelepiped shape constituted by a combination of substantially rectangular shapes, or a shape similar to any of these. Here, the abbreviation means that it does not have to be a mathematically exact rectangle and includes a practically acceptable variation. In other words, the angles of the four corners may be slightly deviated from a right angle to be a shape similar to a parallelogram, the four sides may not be strictly straight lines, and the opposite sides may not be strictly parallel. In any case, any shape can be used as long as the inner bags can be arranged in an orderly manner in accordance with the inner shape of the substantially rectangular shape.

  When the entire outer bag is made of a transparent plastic, it is preferable that at least the base material layer and the heat-adhesive layer are laminated, and the bag be made transparent by heat bonding with the heat-adhesive layer inside. The configuration of the outer bag may be a conventionally known configuration, and is not particularly limited except that the size is suitable for the target packaging. For example, as the base material layer, polyolefin resins such as high density polyethylene (HDPE) conventionally used as a base material layer for packaging bags, polyester resins, nylon resins, and the like can be used without particular limitation. Similarly, the heat-adhesive layer is made of a resin having a heat-adhesive property such as low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), or unstretched polypropylene that has been used as a conventional heat-adhesive layer. That's fine. In addition, these production methods may be a conventionally known production method.

  A plurality of inner bags sealed with the contents are stored in the outer bag. The number of inner bags to be stored is not particularly limited, but is determined in advance according to the purpose of the package. Specifically, the number of inner bags arranged in one row is preferably about 2 or more and 20 or less. In this range, it is effective and important in appearance to arrange the inner bags in an orderly manner. More preferably, it is 2 bags or more and 10 bags or less. The inner bags can be arranged in a plurality of rows by placing a partition plate or the like between the inner bag rows. In that case, the number of inner bags increases by the number of rows.

  The contents are sealed in the inner bag. The contents are not particularly limited as long as they are packaged in small portions, but foods and confectionery that are easily altered by opening, and the amount used or required once at the time of opening are generally determined. Goods are suitable, and furthermore, the contents are flat, relatively large in size, for example, dried fish such as sea bream and large-sized rice crackers. Therefore, depending on the contents, the inner bag is preferably deaerated.

  The inner bag may be transparent, may be opaque with printing or the like on the surface, and may be selected according to the contents. In the case of squid, etc., it is better to make the inner bag transparent because the food can be seen from the outside to stimulate consumers' willingness to purchase. On the other hand, in the case of contents that require high oxygen barrier properties or contents that require light-shielding properties, it is preferable to make them opaque.

  The inner bag is made of a plastic film because of its easy packaging and easy sealing. Specifically, it is desirable to make it from a plastic film in which a base material layer and a heat-adhesive layer are laminated as described for the outer bag.

  Examples of the material for the base material layer when the inner bag is made of a plastic film include nylon resin, polyester resin, polyolefin resin such as polyethylene and polypropylene, and a metal vapor deposition layer and the like are further provided on the film using these. It may be. Furthermore, a film having a linear cut property is suitable, for example, biaxially stretched nylon (ON), gas barrier nylon, biaxially stretched polyethylene terephthalate (OPET), biaxially stretched polypropylene (OPP), Examples thereof include metal oxide vapor-deposited biaxially stretched nylon (VMON) and metal oxide vapor-deposited biaxially stretched polyethylene terephthalate (VMOPET). Specific examples include easy tear NC type nylon and easy tear PC polyester manufactured by Unitika.

  The heat-adhesive layer may be a known material that can be heat-bonded, and is not particularly limited. For example, low density polyethylene (LDPE), linear low density polyethylene (LLDPE), unstretched polypropylene and the like can be used. Furthermore, as the intermediate layer, a film layer or an adhesive layer made of the same material as that of the heat-adhesive layer, and a layer for assisting barrier properties, tearing properties, and the like may be separately laminated.

  The production of the plastic film is not particularly limited as long as it is performed by a conventionally known method. For example, it may be a dry lamination method in which a suitable adhesive such as urethane is used, or a film made of molten polyethylene or the like. It may be a method of extruding in between and laminating.

  The inner bag is a surface film and a back film made of a plastic film, and is bonded to the frame portion in a state where they are overlapped with each other to form a substantially rectangular packaging bag. The meaning of the substantially rectangular shape here is the same as the meaning of the term of the substantially rectangular shape described for the outer bag, but it goes without saying that the inner bag has a different size from the outer bag, and the ratio between the inner bag and the outer bag. It is optional to change In addition, a surface film means the film of the surface visible to a consumer's eyes in the state which displayed the packaging bag for sale. On the other hand, the back film refers to a film that is invisible and visible to consumers.

  On the surface of the back film of the inner bag, a band-like portion extending in a direction substantially parallel to one side of the rectangle is provided. The substantially parallel direction does not have to be a mathematically strict parallel direction, and means that a slight deviation from parallel is allowed as long as the object of the invention is achieved. A configuration example of the inner bag provided with the belt-like portion is shown in FIG. 1 (1) is a schematic diagram of the back surface of the inner bag 10, (2) is a right side view of (1), (3) is a bottom view, and (4) is a perspective view seen from the back surface direction. The inner bag of FIG. 1 has a structure similar to a so-called pillow bag, and the left and right side edges 13 and 17 are folded ends of the film toward FIG. Reference numerals 15 and 20 denote frame portions which are thermally bonded to seal the contents.

  In the example of FIG. 1, a belt-like portion 12 extending in a direction substantially parallel to one end side 17 or 13 of the inner bag 10 is provided so as to protrude from the front surface 11 of the back film. However, the strip | belt-shaped part 12 protrudes so that it may be in the state inclined toward the surface 11 of the back film. The edge 17 of the other inner bag is attached to an acute angle space portion sandwiched between the front surface 11 and the belt-like portion 12 of this back film (on the left side of the belt-like portion 12 in FIGS. 1 (1), (3), and (4)). Then, it is inserted to the vicinity of the rising line 18 of the belt-like portion 12. By doing in this way, another inner bag is pinched | interposed and fixed with a back surface film and a strip | belt-shaped part, and it does not arise position shift between inner bags. In the same manner, a plurality of inner bags are put in series one after another with their front and back sides and directions aligned. In this way, a row shape in which the inner bags are sandwiched between each other is formed. By doing so, the inner bag can be easily prevented from being displaced in the outer bag without using a special tray or the like.

  In order to adjust the appearance of the surface film in a state where the other inner bag is sandwiched, the belt-like portion 12 preferably adjusts the position in the left-right direction and the protruding length of the belt-like portion toward the drawing on the back film surface 11. . In FIG. 1, the distance from one end side 13 of the inner bag to the rising line 18 of the belt-like portion 12 is a, the distance from the rising line 18 to the other parallel edge 17 of the inner bag is b, and the rising wire 18 to the belt-like portion. When the distance (protrusion length) to the tip 19 of 12 is c, it is preferable that a be larger than b, that is, be shifted from the center line of the bag toward one end of the bag. This is because when the row shape is constituted by a plurality of inner bags, the total row length is short, the outer bag can be made small, the packaging bag becomes compact, and an orderly appearance is easily given.

  In the inner bag, it is preferable that b is in the range from about the same as c to slightly smaller than c. This is because if b is too larger than c, it becomes difficult to pinch other inner bags firmly, and there is a high possibility that the row shape will collapse due to impact during transportation, etc., and b is slightly smaller than c. If this is the case, the strips of the adjacent inner bags overlap each other little by little to form a double layer, and the row shape is more difficult to collapse than when the strips are single, but if c is too large, extra film material In addition, the belt-shaped part is piled up and becomes bulky, and workability during packaging is also lowered.

  In order to fix the inner bag stably, it is preferable that c is 10 mm. More preferably, the larger one of 1/6 of the lateral width of the inner bag (the lateral width toward FIG. 1 (1)) and 10 mm is set as the lower limit. This is because with an inner bag having a large lateral width, the inner bag can be stably fixed and the workability of the packaging work is improved when c is larger than 10 mm. More preferably, the larger one of the lateral width 1/5 and 10 mm is set as the lower limit, and more preferably the larger one of the lateral width 2/9 and 10 mm is set as the lower limit. In addition, the upper limit of c is preferably the upper limit of the lateral width of the inner bag, more preferably ½ of the lateral width, from the viewpoint of handling of packaging operations and the viewpoint of not wasting film material. More preferably, it is 1/3. What is necessary is just to specify a and b suitably on the basis of c determined in this way.

  The dimensions of the inner bag naturally vary depending on the contents and the packaging purpose, but here, typical examples of preferable dimension ranges will be given. However, this example is not intended to limit the range of the inner bag. Assuming the inner bag shown in FIG. 1, a is 3.3 to 3.7 and b is 0.3 to 0.6, with c as the reference 1. Most preferably, a is 3.5 and b is 0.5. Specifically, since the width of the thermal bonding portion is usually about 5 to 10 mm, an example in which c is about 10 to 65 mm, a is about 30 to 228 mm, and b is about 5 to 33 mm is given.

  FIG. 2 is a perspective view for explaining a row shape in which three such inner bags are sandwiched and fixed between the belt-like portions. In FIG. 2, the inner bags are illustrated with the distances d and d ′ being shifted from each other, but this is merely a convenience for easy understanding of the relationship between the inner bags, and d and d in the actual row shape. Any of 'should be zero. However, if the outer bag is a parallelogram, d and d 'may be set to a constant positive value accordingly.

  In FIG. 2, between the back film of the inner bag 40 and the belt-like portion 41, the front and back sides and directions of the second inner bag 30 are aligned with the inner bag 40, and the end 32 of the inner bag 30 is the inner bag 40. The inner bag 30 is sandwiched and fixed so as to be positioned in the vicinity of the rising line 43. Further, between the back film of the inner bag 30 and the belt-like portion 31, the front and back sides and direction of the third inner bag 10 are aligned with the inner bag 30, and the end side 17 of the inner bag 10 is the rising line of the inner bag 30. The inner bag 10 is sandwiched so as to be positioned in the vicinity of 33. In this way, the inner bags are sandwiched one after another to form a row shape. Incidentally, as for the dimensions of the row shape, the length in the direction parallel to the rising line is the same as the length of the long side of the inner bag, and the length in the perpendicular direction is W shown in FIG.

  At that time, since the inner bag 40 located at the right end in FIG. 2 is not itself sandwiched between the back film and the belt-like portion of the other inner bag, the inner bag 40 is sandwiched between the other inner bags. The number of bags is obtained by subtracting one from the number of inner bags arranged in a row. Since the inner bags are sandwiched between the inner bags in this way to form a row, the inner bags are difficult to move from each other and are substantially fixed, so that there is less risk of displacement during transportation. In addition, the inner bag is not easily damaged, and furthermore, the inner bag is arranged in an orderly manner in the outer bag, so that an effect of stimulating the consumer's willingness to purchase when viewing the packaging bag is also produced.

  FIG. 3 is a diagram for illustrating the relationship between the row-shaped inner bag and the outer bag 50 in the row shape of FIG. 2 when d and d ′ are both zero and enclosed in the outer bag 50 to form the packaging bag 60. It is. FIG. 3 (1) is a view of the packaging bag as seen from the back side, and (2) is a bottom view. Although the outer bag 50 is indicated by a broken line in FIG. 3, the size of the outer bag 50 is slightly larger than the outer size of the row of the inner bags. Here, the term “slightly” means that when the inner bag row shape is put into the outer bag 50, the bag is so large that it can be put into the outer bag 50 without being caught. Means a small range that is difficult to move the inner bag. Specifically, it is preferable that a total margin of about 3 mm to 20 mm is provided between the sides of the inner bag and the outer bag. Preferably they are 5 mm or more and 15 mm or less. By doing in this way, the row | line | column shape of an inner bag is hard to collapse in an outer bag, and can maintain the stable arrangement | sequence state.

  FIG. 4 shows the packaging bag 60 in the case where the contents of the slime 70 are housed in the three transparent inner bags as shown in FIG. It is a schematic diagram. Both strips are hidden from the back and invisible to consumers. Further, since the inner bags are arranged in an orderly manner in the outer bag, they are not collapsed by transportation, and the state of the slum can be confirmed directly with eyes, which stimulates consumers' willingness to purchase.

  The inner bag illustrated in FIG. 1 rolls up a film of a predetermined length, and heat-bonds the parts so that the inner sides of both ends are joined to each other (back-to-back type). Similar to the so-called pillow bag, in which the frame is shifted from the center of the bag and then the frame part of one of the two unbonded sides is thermally bonded, and the remaining side is heat bonded and sealed. Is. In this type, the back pasting part forms a band-like part.

  Incidentally, when the inner bag is made into a bag, it is necessary to bring the back pasting portion to the end while folding the film, and fine lines are likely to enter the film on one side by a normal method. However, it is only necessary to produce a spatula for exclusive use of the film presser with a gentle shape that is difficult for wrinkles to enter, and to make a bag while suppressing the folded portion.

  The inner bag is not limited to such a bag. For example, a bag as shown in FIG. 5 may be used. This bag can be made as follows. First, a film having a predetermined length is rolled, and the portions 84 are thermally bonded so that the inner sides of both end portions 83 are aligned. In order to form the band-like portion from now on, a method approximate to the method of forming the folded portion of the gusset bag may be used. Specifically, only one side along the side surface of the tubular film is pressed with a spatula similar to the above to create only one folded portion (if the folded portion is created at two opposite locations on the tubular bag, It becomes a gusset bag.) Any one of the two surfaces sandwiching the folded portion may be the band-shaped portion 82.

  Alternatively, a so-called envelope type may be used in which the film is rolled and then the back surface of one end of the film is overlaid on the surface of the other end and then thermally bonded. In this case, in order to form the belt-like portion, it is only necessary to provide one folded portion along one side of the tubular film using a spatula as described above. Furthermore, a film that forms a belt-like portion may be provided on one surface of a normal three-sided bag or a four-sided bag, and the method for producing the inner bag is not particularly limited.

  The inner bag can be provided with various scratches, notches, notches, holes and the like for opening by a known method. The example which provided these in the inner bag of FIG. 1 is shown in FIG. FIG. 6A is an example of the inner bag 90 in which the notches 21 and 22 are provided in the heat bonding portions 14 and 15 near the end side 13 of the main body portion that stores the contents. FIG. 6B is an example of the inner bag 91 in which the notches 23 and 24 are provided in the heat bonding part of the belt-like part 12. When a resealing fastener is provided, it is desirable to provide a mechanism for opening at the end of the main body as in (1).

It is (1) back view, (2) right side view, (3) bottom view, (4) perspective view of the inner bag example. It is the perspective view which showed the combination method for making a some inner bag into row shape. It is (1) back view of a packaging bag example, (2) It is a bottom view. It is an external view by the side of the surface film of a packaging bag. It is the perspective view which showed the other form of the inner bag. It is a figure of the example which provided the notch for opening in the inner bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Inner bag 11 Back surface film 12 Strip | belt-shaped part 13, 17 Edge side 14,15,20 Thermal bonding part 18 Standing line 19 Strip | belt-part edge | side 30,40 Inner bag 31,41 Strip | belt-shaped part 32,42 End | edge 33,43 Rise Line 50 Outer bag 51, 52 Thermal bonding part 60 Packaging bag 70 Contents 80 Inner bag 81 Back film 82 Band-shaped part 83 Edge 84-86 Thermal bonding part 87 Rising line

Claims (6)

  A packaging bag comprising a plurality of predetermined number of inner bags in which contents are sealed in a substantially rectangular outer bag, the inner bag comprising a substantially rectangular surface film and a back film, and the back film A belt-like portion that protrudes from the surface of the rectangular portion and extends in a direction substantially parallel to one side of the rectangle, and the number of inner bags obtained by subtracting one from the predetermined number is the belt-like portion of the other inner bag. And a packaging bag, which is disposed between the back film and the back film.   2. The packaging bag according to claim 1, wherein all of the inner bags are arranged in one or more rows with the front and back sides aligned in a direction.   The packaging bag according to claim 1 or 2, wherein an inner dimension of the outer bag is slightly larger than an outer dimension of the entire arranged inner bag.   The packaging bag according to any one of claims 1 to 3, wherein the outer bag and the inner bag are made of a transparent film, and the contents are dried fish.   The packaging bag according to any one of claims 1 to 4, wherein the inner bag is deaerated and packaged. The contents are sealed in each of a plurality of predetermined number of inner bags each having a substantially rectangular surface film and a back film, and a belt-shaped portion protruding from the surface of the back film and extending in a direction substantially parallel to one side of the rectangle. Each of the inner bags obtained by subtracting one from the predetermined number is disposed so as to be sandwiched between the belt-like portion of the other inner bag and the back film, and then the substantially rectangular outer bag, A method for manufacturing a packaging bag, characterized in that an inner bag in which is placed is stored.

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