JP2020007028A - Packaging bag and package - Google Patents

Abstract

To provide a packaging bag and a package that can change a size of the packaging bag according to a content volume, and can reliably form (create) sealing means for resealing firmly, and contribute to a reduction in packaging cost.SOLUTION: A packaging bag comprises a sealing part SE for storing a stored object XA1 therein and opening it. The sealing part SE serves as an overlapped part of packaging materials in which the packaging materials (YA11, YA12) are overlapped with each other and sealed. A seal part TO1 includes a first seal part 14 adjacent to a storage space of the stored object XA1, and a second seal part 13 formed at an interval from the first seal part 14. Sealing means 16 which is re-adhesive to at least one overlapped surface of the overlapped packaging materials is provided between the first seal part 14 and the second seal part 13. At least a part of the sealing means 16 is exposed by peeling off a peeling part (separation piece) 33 provided on the other packaging material YA11, and can be adhered to an outer surface of the other packaging material YA11.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a packaging bag and a package for articles.

  2. Description of the Related Art As a package for packaging an article such as food or daily necessities, there is a package in which a packaging material such as a film for packaging the article is arranged to face each other and the peripheral or upper and lower ends are sealed. Further, in such a package, a package (packaging bag) that enables a sealed portion to be once opened and then closed again (resealed) is also known.

  For example, there is a package (packing bag) in which an adhesive portion having resealability is provided between a plurality of horizontal seal portions for sealing an opening portion, and a once opened mouth can be closed again (for example, a packaging bag). And Patent Document 1).

  In addition, for example, the front film and the back film are overlapped, a packaging bag in which the peripheral edge is sealed, and the front film and the back film are respectively directed from one side of the side seal portion to the other, and a front-side easy-cut line having a different shape. When the back side easy cutting line is provided and the front side easy cutting line and the back side easy cutting line are cut and opened, the cut front film is formed so that a part of the inner surface of the remaining back film is exposed. It is known that an adhesive portion is provided on an exposed portion to be exposed, whereby the upper end portion of the packaging bag is turned over so that the adhesive portion is adhered to the front film so as to be resealable (for example, see Patent Document 2).

Japanese Patent No. 5959192 JP-A-2017-19519

  However, in the case of the package (packing bag) described in Patent Literature 1, when the article contained in the packaging bag is, for example, a food (eg, bread or rice cracker), a resealing portion (resealing) is used when the article is taken out. There is a high possibility that the article will come into contact with the adhesive (stopping adhesive), and there is a problem of deteriorating the adhesiveness due to food waste and the like. Further, in some cases, there is a fear that the adhesive is not preferably attached to the food.

  Furthermore, since the sealing portion is at the end of the packaging bag and is always adhered and sealed at that position, even if the amount of the article is reduced, the size of the resealed packaging bag does not change. There are also difficult problems.

  On the other hand, in the packaging bag described in Patent Literature 2, the above problem is substantially solved. However, the packaging bag described in Patent Literature 2 cuts the front-side easy-cutting line and the back-side easy-cutting line provided in different shapes at the same time, and cuts off only the front film at the time of opening to expose the adhesive portion. However, at the time of opening, not only the front film but also a part of the back film provided with the adhesive portion may be cut off, and resealing may not be possible.

  In addition, it is necessary to form easy-cut lines having different shapes on the front film and the back film, and the cost of the packaging material or the packaging machine is involved, and as a result, the packaging cost is increased.

  The present invention has been made in view of the above problems, and can change the size of a packaging bag in accordance with the content, and can reliably form (create) a sealing portion for resealing. It is another object of the present invention to provide a packaging bag and a package that can contribute to reduction of packaging cost by relatively simplifying processing of a packaging material for forming a sealing portion.

  The present invention is a packaging bag provided with a sealing portion for storing and opening the contents therein, wherein the sealing portion is a superposed portion of a packaging material in which packaging materials are stacked and sealed, and a sealing portion Comprises a first seal portion adjacent to the storage space of the storage item, and a second seal portion formed at an interval from the first seal portion, and between the first seal portion and the second seal portion. In, provided a re-sealing sealing means is provided on at least one superimposed surface of the polymerized packaging material, the sealing means at least by peeling the peeling portion provided on the other packaging material A packaging bag characterized in that a part thereof is exposed and can be bonded to the outer surface of the other packaging material.

  Further, the present invention is a package provided with the above-mentioned packaging bag.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to change the magnitude | size of a packaging bag according to an internal capacity, it is possible to form (create) the sealing means for resealing reliably, and to form the packaging for forming a sealing means. It is possible to provide a packaging bag and a package that can contribute to a reduction in packaging cost by relatively simplifying the processing of the material.

It is an appearance perspective view of a pillow package concerning an embodiment of the present invention. It is the (A) plane outline figure, (B) sectional outline figure, (C) plane outline figure, and (D) outline sectional view of a pillow package concerning a 1st embodiment of the present invention. It is a (A) plane schematic diagram, (B) cross-sectional schematic diagram, (C) plane schematic diagram, (D) cross-sectional schematic diagram, (E) cross-sectional schematic diagram of the pillow package according to the first embodiment of the present invention. FIG. 2 is a schematic plan view of the pillow package according to the first embodiment of the present invention. FIG. 2 is a schematic plan view of the pillow package according to the first embodiment of the present invention. It is a schematic plan view of a pillow package according to a second embodiment of the present invention. It is a schematic plan view of a pillow package according to a second embodiment of the present invention. It is a schematic plan view of a pillow package according to a second embodiment of the present invention. 1 is a schematic front view of a pillow packaging machine according to an embodiment of the present invention. 1 is a schematic front view of a rupture means forming apparatus according to an embodiment of the present invention. It is a front view showing other examples of a top seal device concerning an embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
First, the package 10 and the packaging bag 30 of the first embodiment will be described with reference to FIGS. 1 to 3. The package 10 of the present embodiment is a package 10 provided with a sealing portion SE for accommodating and opening the container (article) XA1 therein, and is a pillow package as an example. FIG. 1 is an external perspective view showing a pillow package 10, and FIGS. 2 and 3 are diagrams showing a method of resealing the pillow package 10 in a time-series manner. 2 (B), 3 (A) and 3 (B) are plan views of main parts, and FIGS. 2 (C), 2 (D), 3 (C) and 3 (D) are FIGS. (A), FIG. 2 (B), FIG. 3 (A) and FIG. 3 (B) are schematic cross-sectional views taken along the line XX, and FIG. 3 (E) is a schematic cross-sectional view showing a modification of FIG. is there. Note that in this drawing and the following drawings, some components are appropriately omitted to simplify the drawings. In this drawing and the following drawings, the thickness of the members is exaggerated.

  In addition, as the definitions of the various directions in the following description, for convenience, the vertical direction in FIG. 1 is the length direction L of the pillow package 10, the left-right direction is the width direction W and the length direction L of the pillow package 10. The direction orthogonal to any of the width directions W is defined as the height direction H of the pillow package 10.

  The pillow package 10 of the first embodiment will be described with reference to FIG.

  The pillow package 10 of the present embodiment is formed in a cylindrical shape with a center seal portion CE1 in which both ends along the length direction L are overlapped and sealed so that the band-shaped packaging material YA1 has a cylindrical shape. It has an inner packet part 11 that contains the article XA1.

  By making the packaging material YA1 into a tubular shape, an article (not shown here) is packaged so that the packaging material YA1 faces the packaging material YA1. In the present embodiment, for the sake of convenience, of the opposing packaging materials YA1 in the pillow package 10, the packaging material YA1 on the surface on which the center seal portion CE1 is formed is referred to as a first packaging material YA11, and the center seal portion CE1 is provided. The packaging material YA1 having no surface is referred to as a second packaging material YA12.

  In addition, the pillow package 10 has a pair of top seal portions TO1 (sealed along the width direction W such that the openings at both ends in the length direction L of the first packaging material YA11 and the second packaging material YA12 are crushed. End seal part, horizontal seal part).

  That is, the length direction L of the pillow package 10 refers to a direction from one top seal portion TO1 to the other top seal portion TO1 (extending direction of the center seal portion CE1), and the width direction W refers to the top seal portion. The direction in which TO1 extends.

  Note that, in this example, a pillow package 10 (a pillow package 10 having a center seal portion (third seal portion) CE1) in which end portions of a band-shaped packaging material YA1 are sealed with each other to form a bag is illustrated. However, a bag-shaped packaging material (packaging bag) YA1 having no center seal portion CE1 may be used.

  The pillow package 10 includes a sealing portion SE. Although details will be described later, the sealing portion SE is a superposed portion of the packaging material YA1 in which the packaging materials YA1 (YA11, YA12) are overlapped and sealed. One of the top seal portions TO1 of the pillow package 10 (in this example, the top seal portion TO1 in the upper part of the drawing) is one end of the first packing material YA11 and the second packing material YA12 in the length direction L (for example, the upper end shown in the drawing). Part T1) is pressurized in the width direction W to close the second seal part 13, and the other end (the lower end part T2 in the drawing) of the packaging material YA1 in the length direction L than the one end part (the upper end part T1). ) Side is configured to include the first seal portion 14 which is closed by pressing in the width direction W. The second seal portion 13 and the first seal portion 14 are spaced apart from each other by a predetermined distance and arranged (substantially) in parallel with each other. The pillow package 10 of this example removes the enclosed product by peeling off the top seal portion TO1 (the second seal portion 13 and the first seal portion 14) on the side of the upper end portion T1 shown in the figure and opening it. It can be included again. That is, in this case, the upper end T1 of the pillow package 10 shown in FIG. 1 is the end on the side to be opened, and the upper end T1 becomes the opening (opening part) OP (FIG. 2B, FIG. 2 (F)). The packaging bag 30 of the present embodiment is, for example, the packaging bag 30 that constitutes the pillow package 10.

  The pillow package 10 is one of the superimposed surfaces of at least one of the superimposed packaging materials YA1 (YA11, YA12) between the first seal portion 14 and the second seal portion 13 of the sealing portion SE. A sealing means 16 that can be re-adhered to the packaging material YA12 is provided. Specifically, for example, the sealing unit 16 is, for example, the second packaging material YA12 of the first packaging material YA11 and the second packaging material YA12 facing between the second sealing portion 13 and the first sealing portion 14. Provided on the inner surface of the The sealing means 16 temporarily fixes a part of the packaging material YA1 to the packaging material YA1 itself by bonding, adhesion, or the like so that the packaging material YA1 can be resealed and resealed. The sealing means is, for example, an adhesive layer 16 in which an adhesive is applied (applied / sprayed) to a part of the packaging material YA1. The sealing means 16 can be exposed at least after the first seal portion 14 has been opened, and is configured to be able to reseal the packaging material YA1.

  The second seal portion 13 and the first seal portion 14 are both sealed (for example, heat welding) so that they can be opened (peeled), but the second seal portion 13 has a peel strength higher than that of the first seal portion 14. It is sealed so as to require a stronger (greater) force than the first seal portion 14 at the time of peeling (opening).

  By providing the first seal part 14 between the inner packet part 11 and the sealing means 16, the sealing means 16 and the inner packet part 11 can be separated by the first seal part 14 until the pillow package 10 is opened. it can. Accordingly, it is possible to prevent the components of the sealing means (adhesive layer) 16 from migrating to the contained article XA1 and prevent the adhesiveness (adhesiveness) from being deteriorated due to the contact of the article XA1 with the sealing means 16.

  In other words, the first seal portion 14 has a smaller peeling strength than the second seal portion 13 because it is sufficient if the sealing means 16 and the inner package portion 11 can be separated from each other, but is equivalent to the second seal portion 13. You may.

  The other top seal portion TO1 (in this example, the lower top seal portion TO1 in the figure) is connected to the other end (for example, the lower end in the drawing) of the first packaging material YA11 and the second packaging material YA12 in the length direction L. And a third seal portion 15 which is closed by being pressed in the width direction W. Note that the other top seal portion TO1 may include another seal portion in addition to the third seal portion 15.

  With reference to FIGS. 2 and 3, a configuration of the sealing unit SE and a method of resealing will be described. Both figures are schematic diagrams extracting and showing the vicinity of the top seal portion TO1 on the upper end portion T1 side shown in FIG. FIGS. 2 (A), 2 (B), 3 (A) and 3 (B) are schematic plan views as viewed from the center seal portion CE1 side (the first packaging material YA11 side). The illustration of the unit CE1 is omitted. 2 (C), 2 (D), 3 (C) and 3 (D) are FIGS. 2 (A), 2 (B), 3 (A) and 3 (B), respectively. 3) is a schematic cross-sectional view taken along the line XX of FIG. 3, and FIG. 3E is a schematic cross-sectional view showing a modification of FIG. 3D, in which the illustration of the article XA1 is omitted.

  2A and 2C show the pillow package 10 before opening. In this state, a second seal portion 13 extending in the width direction W is provided at the upper end portion T1 of the pillow package 10, and extends in the width direction W at a predetermined distance away from the lower end portion T2 in the length direction L. A first seal portion 14 is provided. A sealing means 16 extending in the width direction W is provided between the two.

  As an example, the sealing means 16 is provided separately from the second seal portion 13 and the first seal portion 14 in the length direction L, but may be arranged so as to be adjacent to at least one of them.

  As shown in FIG. 1C, the pillow package 10 wraps the article XA1 by arranging the first wrapping material YA11 and the second wrapping material YA12 to face each other. Each of the first packaging material YA11 and the second packaging material YA12 is sealed (press-bonded, welded). In FIG. 4C, for convenience of explanation, the first packaging material YA11 and the second packaging material YA12 in the top seal portion TO1 are illustrated as being separated from each other. The part 13 and the first seal part 14 are integrated (the two sheets of the packaging materials YA11 and YA12 are integrated).

  As an example, the sealing means 16 is provided between the second sealing portion 13 and the first sealing portion 14 (in the length direction L), for example, in a region where the first packaging material YA11 and the second packaging material YA12 are not sealed. It is provided on the inner surface of the second packaging material YA12. Further, before opening, the whole is covered with the first packaging material YA11 and is not exposed to the outside.

  The sealing means 16 is appropriately selected according to the material and thickness of the packaging material YA1 so that the packaging material YA1 can be temporarily (to the extent that it can be resealed and can be resealed) adhered (adhered). . Specifically, when the packaging material YA1 is, for example, a resin film such as a food packaging material such as polyethylene or polypropylene, the sealing means 16 of the present embodiment is configured such that these can be resealed and resealed. It is an adhesive layer for food packaging materials that can be adhered (or adhered).

  Here, the first packaging material YA11 of the present embodiment has a fragile region 31 on the end T1 side above the first seal portion 14 as shown in FIG. The fragile region 31 refers to a region where the first packaging material YA11 is easily broken in a predetermined pattern by forming the breaking means 32. The breaking means 32 is, for example, a perforation 32 of a predetermined pattern or an easily cut line 32. Here, the easy-cut processing line 32 is, for example, an expected break line that is formed by stretching a resin film in a predetermined direction so as to have excellent straight-line cutability in the direction.

  Specifically, the easy-cut processing line 32 is extended in the horizontal direction when it is desired to cut in the horizontal direction (TD direction, in this example, the width direction W), and in the vertical direction (MD direction) when it is desired to cut in the vertical direction. In the present example, it is formed by extending in the length direction L), and in this example, an easy-cut processing line is formed in a U-shape indicated by a large broken line in FIG.

  In addition, the easy-cut processing line 32 is not limited to the one formed by stretching. For example, when the first packaging material YA11 is a laminate resin of three or more layers, the cut portion (the breaking means (perforation) And a half-cut (for example, a portion irradiated with a laser beam (for example, a carbon dioxide laser) to the laminated film including a carbon dioxide laser absorbing layer to such an extent that the laminated film does not penetrate))) Thus, the vehicle may have a straight cutting property.

  Further, as the packaging material YA1, for example, a uniaxially stretched film having a cut property in a direction along the center seal portion CE may be used.

  Further, the breaking means (perforation, easy-cut processing line) 31 of the present example has two starting points S1 and S2 of breaking near both ends in the width direction W of the packaging material YA1 and near the upper end T1. The fracture starting points S1 and S2 are portions that become the starting points when the fracture is performed along the fracture means 31. In the fragile area 31, the first packaging material YA11 can be broken along the breaking means 31 from both or one of the breaking starting points S1 and S2.

  2B and 2D show a state in which the second seal portion 13 and the first seal portion 14 are peeled off and the upper end T1 of the pillow package 10 is opened.

  The pillow package 10 generally includes a portion of the center seal portion CE1 near the top seal portion TO1 on the side of the upper end T1 and a portion of the first wrapping material YA11 opposite to the inner package portion 11 corresponding to the portion. The second sealing material 13 and the first sealing portion 14 are peeled off by being pulled in a direction in which they are separated from each other in a state where the second packaging material YA12 is pinched, and can be opened from the top sealing portion TO1. Thus, the article XA1 can be put in and out of the opening OP.

  Then, as shown in FIG. 4D, the sealing means 16 of the present embodiment ensures that the inner surface of the second packaging material YA12 is secured even when the second seal portion 13 and the first seal portion 14 are peeled off. It is configured to be fixed to.

  Then, when the pillow package 10 is resealed, as shown in FIGS. 3A and 3C, first, a part of the first packaging material YA11 is cut off.

  As shown in FIG. 2 (B), in the fragile region 31, there are breaking means 31 having two breaking starting points S1 and S2 near both ends in the width direction W of the first packaging material YA11 and near the upper end T1. Is provided. Therefore, the first packaging material YA11 can be easily broken along the breaking means 32 in the direction of the arrow from the breaking start points S1 and S2.

  Then, by removing a part (cutoff piece 33) of the first packaging material YA11 thus broken, the sealing means 16 is exposed as shown in FIGS. 3A and 3C.

  In addition, although the starting point of the break of the first packaging material YA11 is two places (start points S1 and S2), the break may be performed from the start point S1 (only) or may be performed from the start point S2 (only). It may be performed from the starting points S1 and S2.

  When the separation piece 33 is removed, only the second packaging material YA12, the second packaging material YA12, and the first packaging material YA11 partially missing remain on the upper end portion T1 side.

  Then, as shown in FIGS. 9B and 9D, the sealing means 16 is left by folding the remaining second packaging material YA12 in the length direction L toward the lower end T2. It is adhered to the outer surface of the first packaging material YA11. Thus, the pillow package 10 is resealed.

  Further, as shown in FIG. 9E, the first packaging material YA11 including the remaining second packaging material YA12 and the second packaging material YA12 are folded back in the length direction L toward the lower end T2. Then, the sealing means 16 may be adhered to the outer surface of the remaining first packaging material YA11, and the pillow package 10 may be resealed.

  As described above, the sealing means 16 of the present embodiment can be used to re-seal the top seal portion TO1 after opening the top seal portion TO1 as necessary. By cutting off part of the material YA11), the sealing means 16 can be reliably exposed.

  For example, as in the prior art (Patent Document 2), in the case of a configuration in which the front-side easy-cutting line and the back-side easy-cutting line provided in different shapes are cut simultaneously with opening, and only the front film is cut out to expose the adhesive portion, At the time of opening, not only the front film but also a part of the back film provided with the adhesive portion may be cut off, and resealing may not be possible.

  On the other hand, according to the present embodiment, when the sealing means 16 is exposed, only a part of the first packaging material YA11 after opening the pillow package 10 can be easily cut off. Can be avoided and the sealing means 16 can be reliably exposed.

  Further, in the conventional technique described in Patent Literature 2, it is necessary to form easily-cut lines having different shapes on the front film and the back film, and the cost of the packaging material or the packaging machine is involved. As a result, the packaging cost is increased. However, in the present embodiment, since the breaking means 32 may be formed only on the first packaging material YA11, the cost of the packaging material or the packaging machine is reduced as compared with the related art, and as a result, the packaging cost is reduced. be able to.

  In the conventional technique (Patent Literature 1), the resealable portion (corresponding to the sealing means 16 of the present embodiment) is located at the end of the packaging bag, and is always adhered and sealed at that position. Even when the amount is reduced, the size of the resealed packaging bag does not change and there is a problem that it is difficult to handle.

  However, according to the present embodiment, by changing the amount of bending of the second packaging material YA12 in the length direction L according to the amount of the article XA1, the sealing means is placed at a desired position corresponding to the amount of the article XA1. 16 can be bonded (adhered).

  For example, when the quantity of the article XA1 is further reduced in FIG. 3D, the amount of folding is increased in the length direction L toward the lower end T2 (see the lower part of FIG. The position of the adhesive (adhesion) 16 can be shifted to the right so that the package after resealing can be made compact. Good.

  FIG. 4 is a plan view showing another example of the first embodiment. 4A and 4B show another example of a method of exposing the sealing means 16, and FIG. 4A corresponds to FIG. Corresponds to FIG. FIGS. 4C and 4D are views showing another embodiment of the sealing means 16.

  As shown in FIGS. 4A and 4B, the separation piece 33 of the first packaging material YA11 is not configured to be completely removed from the first packaging material YA11, and a part of the separation piece 33 is not in contact with the first packaging material YA11. It may be continuous. In this example, a portion (a side extending in the width direction W) near the first seal portion 14 of the separation piece 33 near the first seal portion 14 is continuous with the first packaging material YA11.

  That is, also in the case of this example, similarly to the configuration shown in FIG. 2, the first packaging material YA11 is easily broken along the breaking means 32 in the direction of the arrow from either or both of the breaking starting points S1 and S2, The sealing means 16 can be exposed. Other configurations are the same as those of the above-described embodiment (FIGS. 1 and 2), and thus description thereof is omitted.

  In the case where the first packaging material YA11 (the separation piece 33) cannot be removed, as shown in FIGS. 4C and 4D, another sealing means is provided on the inner surface of the first packaging material YA11. 16 'may be provided. In this case, as shown in FIG. 3C, the other sealing means 16 'may be provided at a position overlapping with the sealing means 16 on the second packaging material YA12 side before opening. As shown in FIG. 3D, the second sealing portions 13 (first sealing portions 14) are arranged alternately in the extending direction so as not to overlap with the sealing means 16 on the second packaging material YA12 side. May be. By providing the other sealing means 16 ', the versatility of the sealing position can be enhanced, and the reliability (adhesiveness and tackiness) of resealing can be enhanced.

  Further, according to such a configuration, the sealing member 16 can be exposed without the separation piece 33 becoming dust.

  FIG. 5 is a plan view showing another example of the pattern of the breaking means 32. FIGS. 2A and 2C are views before opening and correspond to FIG. 2A, and FIGS. 2B and 2D are opened, FIG. 4 is a plan view corresponding to FIG. 3A after removal.

  The breaking means 32 is not limited to the U-shape (rectangular shape) shown in FIG. 2, but may be a U-shape as shown in FIG. 5 (A) or a V-shape as shown in FIG. 5 (C). It may be in the shape of a letter.

  Also in this case, similarly to the configuration shown in FIG. 2, the first packaging material YA11 is easily broken along the breaking means 32 in the direction of the arrow from one or both of the breaking starting points S1 and S2, and the cut pieces 33 are formed. Can be removed to expose the sealing means 16.

  Further, in the pattern of the breaking means 32 shown in FIG. 5, as shown in FIG. 4, the separation piece 33 is not completely removed from the first packaging material YA11 (continuous with the first packaging material YA11). There may be. In the case where the first packaging material YA11 (the separation piece 33) cannot be removed, as shown in FIGS. 4C and 4D, another sealing means is provided on the inner surface of the first packaging material YA11. 16 'may be provided. Other configurations are the same as those of the embodiment shown in FIGS. 1 to 4 described above.

  Note that, in the first embodiment, the sealing is performed in such a manner that the separation piece 33 is folded back without being separated (a state in which all or part of the separation piece 33 is kept continuous with the first packaging material YA11 and a state in which the sealing unit 16 is not exposed). Resealing may be performed by means 16. For example, in a case where the quantity of the article XA1 does not decrease, the length of the packaging material YA1 is maintained in the state before opening (at the time of opening) (in a state in which the length in the length direction L is long), and the length is again changed. Can be sealed.

[Second embodiment]
The second embodiment will be described with reference to FIGS. FIGS. 6A to 6C are views showing an example of the pillow package 10 of the second embodiment, which correspond to FIGS. 2A, 3A and 3B, respectively. FIG.

  The pillow package 10 of the first embodiment is configured to be opened from the upper end T1, but is configured to be opened from a position closer to the lower end T2 than the upper end T1 in the length direction L. Is also good.

  Specifically, the pillow package 10 of the present embodiment has an opening assisting means 35 for assisting the opening of the packaging material YA1. The opening assisting means 35 is, for example, a part of the center seal part CE1, specifically, an opening notch provided on the lower end part T2 side of the pillow package 10 with respect to the first seal part 14 of the first packaging material YA11. 35. The opening notch 35 in this example is a V-shaped notch having a sharp valley, but may be a linear cut provided in the center seal portion CE1.

  In this case, the first packaging material YA11 has a fragile region 31 on the upper end T1 side above the opening notch 35 (the first seal portion 14). Breaking means 32 is formed in the fragile area 31 as shown by a large broken line. The breaking means 32 in this example is, for example, an easy-cut processing line 32. The easy-cut processing line 32 has a fracture starting point S3 near the opening notch 35. In the example shown in the drawing, an example is shown in which a valley of a V-shaped opening notch 35 has a fracture starting point S3.

  At the time of opening, the center seal portions CE1 on both sides of the opening notch 35 are pinched and separated from each other (in the illustrated example, in the vertical direction (L direction) and in the thickness direction of the pillow package 10 (H direction). )pull. Thereby, the first packaging material YA11 can be easily broken along the breaking means 32 from, for example, the direction of the arrow from one break start point S3.

  Then, by removing a part (separation piece 33) of the first packaging material YA11 thus broken, the sealing means 16 is exposed as shown in FIG. At the same time, the first seal portion 14 and the second seal portion 13 are peeled off, and the upper end T1 of the pillow package 10 is opened.

  That is, in this example, the separation piece 33 can be removed at the same time as the opening, and the sealing means 16 can be exposed.

  When resealing the package, the second packaging material YA12 is folded back from the upper end T1 toward the lower end T2 by a required amount (see FIG. 3D), and the first packaging material YA11 is sealed with a sealing means. 16 can be sealed by bonding (adhesion) (FIG. 6C).

  When the pillow package 10 is first opened, the pillow package 10 can be opened, for example, if the pillow package 10 is broken at least only in the width direction W along the breaking means 32 from the opening notch 35. That is, without opening and removing the separation piece 33, the article XA1 may be taken out, and the separation piece 33 may be removed when resealing (for the first time at the time of resealing). In this way, the sealing means 16 is covered with the first packaging material YA11 (cutoff piece 33) until immediately before resealing, so that the contact between the sealing means 16 and the article XA1 when the article XA1 is taken in and out is made. Can be avoided. Thereby, for example, it is possible to prevent the article XA1 from being adhered (adhered) to the sealing means 16 and to be caught, so that the article XA1 can be smoothly taken in and out. In particular, particularly when the article XA1 is a food or the like, it is possible to prevent the debris or the like from adhering to the sealing means 16, and as a result, it is possible to avoid the deterioration of the adhesiveness (adhesion) (resealability) of the sealing means 16. As described above, the sealing means 16 of the present embodiment is configured to be exposed when the second seal portion 13 and the first seal portion 14 are peeled off and opened by the opening notch 35. Other configurations are the same as in the first embodiment.

  FIG. 7 is a plan view showing another example of the second embodiment. The fragile region 31 may be provided in a region from the opening notch 35 (the first seal portion 14) to the second seal portion 13 (not reaching the second seal portion 13).

  As shown by the large broken line in the fragile region 31, for example, a rectangular breaking means 32 is formed at a lower end T2 than the second seal portion 13. The breaking means 32 of this example is, for example, an easy-cut processing line 32 and has one break start point S3 near the opening notch 35.

  At the time of opening, the center seal portions CE1 on both sides of the opening notch 35 are pinched and separated from each other (in the illustrated example, in the vertical direction (L direction) and in the thickness direction of the pillow package 10 (H direction). )pull. Thereby, the first packaging material YA11 can be easily broken along the breaking means 32 from, for example, the direction of the arrow from one break start point S3.

  In this case, when the separation piece 33 is removed, a rectangular opening OP is formed in a part of the first packaging material YA11 shown in FIG. .

  Since the first seal portion 14 in this example is sufficient if the sealing means 16 and the inner packet portion 11 can be separated from each other, the peel strength is lower than that of the second seal portion 13. On the other hand, the second seal portion 13 has a very high peel strength and is difficult to peel.

  Also, in this example, when the pillow package 10 is opened for the first time, the pillow package 10 can be opened by, for example, breaking at least only in the width direction W from the opening notch 35 along the breaking means 32. That is, without opening and removing the separation piece 33, the article XA1 may be taken out, and the separation piece 33 may be removed when resealing (for the first time at the time of resealing).

  In the method of resealing, as in the case of FIG. Other configurations are the same as those of the above-described first and second embodiments.

  FIG. 8 is a plan view showing another example of the second embodiment. FIGS. 8A, 8C and 8E show a state before opening, and FIGS. (D) and (F) of FIG. 7A, (C), and (E) of FIG. 7 are in an opened state (separation pieces connected (continuous) at the top seal portion TO1). 33 is folded back).

  In a configuration in which the second seal portion 13 is not peeled off at the time of opening as shown in FIG. 7, the separation piece 33 is not completely cut off from the first packaging material YA11 as in the configuration shown in FIG. 4 of the first embodiment. , May be partially continuous.

  For example, at the time of opening, as shown in FIG. 8A, the center seal portions CE1 on both sides of the opening notch 35 are pinched and separated from each other (in the illustrated example, in the vertical direction (L direction) and the pillow package 10). In the thickness direction (H direction).

  Thereby, as shown in FIG. 7B, the first packaging material YA11 (cutoff piece 33) is easily broken along the breaking means 32, for example, in the direction of the arrow from one break start point S3, and the second The sealing means 16 provided on the side of the packaging material YA12 is exposed. However, the second seal portion 13 is not peeled off at the upper end portion T1, and the separation piece 33 remains continuous with the packaging material YA1. Further, the sealing means 16 may be provided on the first packaging material YA11 side on the separation piece 33 side.

  Although this example shows a case where the second seal portion 13 is not peeled off even when opening, the second seal portion 13 is peeled, but the separation piece 33 is attached to the packaging material YA1 (the first packaging material YA11 or the first packaging material YA11). (2) It may be configured to be continuous with the packaging material YA12).

  Further, as shown in FIGS. 9C and 9D, when the separation piece 33 is not removed from the first packaging material YA11, another sealing is performed on the separation piece 33 (first packaging material YA11) side. Means 16 'may be provided. In this case, when the first packaging material YA11 and the second packaging material YA12 face each other, as shown in FIGS. It is provided at a position that does not overlap. Although not shown, it may be provided at a position where the sealing means 16 and another sealing means 16 'overlap.

  In addition, as shown in FIGS. 9E and 9F, when the sealing means 16 and the other sealing means 16 'overlap while the first packaging material YA11 and the second packaging material YA12 face each other. Instead, they may be provided so as to alternate along the width direction W.

  According to such a configuration, versatility can be given to the position to be sealed by the sealing means 16, 16 '.

  In the above-described embodiment, the first packaging material YA11 has a guide indicating the position of the breaking means 32 (particularly in the case of the easy-cut processing line), the starting points S1, S2, S3 of breaking, and the direction of opening. May be printed.

  As described above, when opening the pillow package 10 of the second embodiment of the present invention, the center seal portion CE1 sandwiching the opening notch 35 is pinched, and the height direction (H direction) of the pillow package 10 is opened. In this case, there is no problem that the separation piece 33 is separated like the problem expected in Patent Document 2. In the case where the sealing member 16 is provided on the separation piece 33, the problem that the separation piece 33 is separated at the time of opening can be prevented by strongly sealing the second seal portion 13 with high sealing strength.

(Modification)
In the embodiment described above, when the breaking means 32 is not a through hole, the breaking means 32 may be provided between the second seal portion 13 and the opening notch 35.

  Further, the opening notch 35 may be an I notch (eye notch) or a Y notch (Wynotch).

  Further, a roll film (a raw material roll) provided with a breaking means (for example, perforation) 32 in advance may be used.

  With reference to FIG. 9, an example of a pillow packaging machine 20 for manufacturing the above-described pillow package 10 will be described. In the following description, the first direction that is the longitudinal direction of the long packaging material YA1 extending in a band shape is defined as the transport direction L ′, and the second direction that is the direction in which the width direction top seal portion TO1 of the packaging material YA1 extends is defined as the transport direction L ′. The third direction, which is the transport width direction W ′ and is the height direction (the direction perpendicular to the transport direction L ′ and the transport width direction W ′) of the packaging material YA1 (article XA1), is the transport height direction H ′. I do.

  The pillow packaging machine 20 of the present embodiment is, for example, a horizontal bag making and filling machine, and includes an article supply device 202, a film supply device 203, a packaging machine main body 204, a sealing means forming device 250, and a control unit (shown in the drawing). (Omitted). These components of the packaging machine 20 are controlled by a control unit.

  The control unit includes a CPU, a RAM, a ROM, and the like, and executes various controls. The CPU is a so-called central processing unit, and executes various programs to realize various functions. The RAM is used as a work area of the CPU. The ROM stores a basic OS and programs executed by the CPU.

  The article supply device 202 transports the articles XA1 at equal intervals and sequentially transports the articles XA1 to the downstream packaging machine main body 204. The article supply device 202 is composed of, for example, a finger conveyor. Specifically, the article supply device 202 includes a conveying surface having a slit (not shown), a side guide (not shown) for guiding the article XA1 on the conveying surface from the side, a driving sprocket 205, and a driven Sprockets (not shown), an annular chain 206 that runs over these sprockets, a plurality of fingers 207 attached to the chain 206 at equal intervals, and a servomotor (illustration (Omitted).

  The driving sprocket is rotated by driving a servomotor. The driven sprocket 205 rotates in conjunction with the driving sprocket as the chain 206 travels. The chain 206 runs so as to circulate by rotation of a driving sprocket. The plurality of fingers 207 project upward from below the transport surface through the slit. The plurality of fingers 207 travel on the transport surface by the travel of the chain 206. Thus, the plurality of fingers 207 push the article XA1 on the transport surface and send it out to the packaging machine main body 204.

  The film supply device 203 continuously supplies the packaging material (packaging film) YA1 to the downstream packaging machine main body 204. The film supply device 203 includes a web shaft 208, a servomotor (not shown), guide rollers 209a and 209b, and the like. The web shaft 208 rotatably holds the web roll YB1. The source shaft 208 is rotated by power supplied to a servo motor, and rotates the held source roll YB1. Thereby, the packaging material YA1 is fed out (stretched) from the material roll YB1. The guide rollers 209a and 209b appropriately change the transport direction L 'of the material roll YB1 and guide the material roll YB1 to the packaging machine main body 204 side.

  As a method of feeding the packaging material YA1 from the material roll YB1, instead of employing the above-described material driving type method, a feed roller is separately provided, and the feed roller for moving the feed roller to pull out the packaging material YA1 is provided. A driving method may be employed.

  The sealing means forming apparatus 250 is, for example, an adhesive applying means for applying an adhesive to the packaging material YA1, and here, as an example, the packaging material (packaging film) YA1 sent from the raw material roll YB1 is formed into a bag. An adhesive application device 250 that is provided before being supplied to the packaging machine main body 204 to be applied and applies an adhesive to the packaging material YA1.

  The adhesive application device 250 has, for example, an injection nozzle 251 that reciprocates by driving a cylinder 255 (such as an air cylinder). The injection nozzle 251 is arranged in the direction perpendicular to the apex of the guide roller 209b or in the width direction (transport width direction W ′) of the packaging material YA1 immediately after the roller 209b (within 100 mm of the tangential direction of the roller 209b). The adhesive is applied vertically to the packaging material YA1 in a state where the YA1 is stretched, and when the adhesive is applied, the adhesive is applied in a state where the tip thereof is close to the packaging material YA1. Further, a plurality of injection nozzles 251 may be arranged in the transport width direction W ′.

  Further, when the melting temperature of the adhesive is high, a water-cooling type cooling means 252 may be provided at a position facing the injection nozzle 251 of the adhesive coating device 250 via the packaging material YA1. At least when the adhesive is applied, the cooling surface of the cooling means 252 abuts against the packaging material YA1 to prevent the packaging material YA1 from being thermally affected (deformed) by the heat of the molten adhesive.

  In the case where the injection nozzle 251 is arranged in a direction perpendicular to the vertex of the roller 209b, a roller provided with a cooling unit for cooling the roller 209b may be used.

  The packaging material YA1 is continuously supplied to the packaging machine 20 in a state where an adhesive is interposed in a portion to be the sealing means 16. More specifically, the adhesive is supplied by the adhesive application device 250 to the packaging machine main body 204 where the packaging material (packaging film) YA1 sent from the material roll YB1 is formed. It is applied (sprayed) in the transport width direction W ′.

  Further, the adhesive may be applied to the packaging material YA1 being transported. In this case, the adhesive may be applied to a predetermined position of the packaging material YA1 while moving the adhesive application device 250 in synchronization with the conveyance of the packaging material YA1.

  In addition, an adhesive is provided in a state in which a parting device in the conveying direction of the packaging material YA1 (a part between the parting devices) is stopped while continuously supplying (transporting) the packaging material YA1 as a whole. May be applied. Alternatively, the packaging material YA1 may be intermittently conveyed, and once stopped, an adhesive may be applied.

  The packaging machine main body 204 wraps the article XA1 supplied from the article supply device 202 with the packaging material YA1 supplied from the film supply device 203. Specifically, the packaging machine main body 204 includes a bag making device 214, a pinch roller 210, a center seal device 216, a top seal device 218, a first transport device 211, a second transport device 212, and the like. ing.

  The bag making device 214 makes the packaging material YA1 supplied from the film supply device 203 into a tubular shape such that both end edges in the conveying width direction W ′ overlap with each other. In addition, the bag making device 214 supplies the article XA1 supplied from the article supply device 202 to the packaging material YA1 made into a tubular shape. Thereby, the article XA1 is wrapped in the packaging material YA1 made in a tubular shape. In other words, the bag making device 214 functions as a bag making device that bends the packaging material YA1 in the width direction and forms it into a cylindrical shape.

  The pinch roller 210 sandwiches both edges (center seal portion CE1) of the wrapping material YA1 overlapping each other and applies a conveying force to the center seal portion CE1.

  The center seal device 216 includes a pair of bar sealers 2 and a press roller 216b. The center seal device 216 heats the pair of bar sealers 2 with the center seal portion interposed therebetween. Then, the center seal device 216 presses the heated center seal portion with a press roller 216b to seal the center. That is, the center seal device 216 performs a center seal on the cylindrically formed packaging material YA1 downstream of the bag making device 214 to form a center seal portion CE1 (see FIG. 1).

  The first transport device 211 is an upstream belt conveyor 211 that is a transport unit arranged on the upstream side, and includes a center-sealed tubular packaging material YA1 together with an article XA1 wrapped in the packaging material YA1. The sheet is conveyed toward the top seal device 218 on a conveyance surface (reference numeral omitted). The upstream belt conveyor 211 expands and contracts the transport surface in the transport direction L ′ in accordance with the box motion of the top seal device 218 (also referred to as a horizontal seal device or an end seal device). The second transport device 212 is a downstream belt conveyor (chute conveyor) 212 which is a transport unit following the upstream belt conveyor 211, and takes over and transports the article XA1 transported by the upstream belt conveyor 211. The downstream belt conveyor 212 also expands and contracts the transport surface in the transport direction L ′ in accordance with the box motion of the top seal device 218.

  The two belt conveyors 211 and 212 move back and forth following the movement of the top seal device 218 in the front-rear direction, thereby maintaining a gap in the front-rear direction with the top seal device 218 at a certain distance or less. .

  The top seal device 218 includes a pair of top sealers 218A and 218B arranged vertically, and performs top sealing and cutting in the transport width direction W ′ of the packaging material YA1 at every pitch according to the length of the article XA1. The top seal portion TO1 is formed. Thereby, the pillow package 10 shown in FIG. 1 is formed.

  The breaking means 32 is not limited to a configuration formed by irradiating laser light, and is provided by, for example, a breaking means forming apparatus 40 which forms the breaking means 32 on a packaging film conveyed by a rotary blade or a reciprocating blade. It may be something. In the case of a reciprocating blade, a hand-moving mechanism (accumulate mechanism) is provided, and the center sealing device 216 and the top sealing device 218 of the pillow packing machine 20 are continuously connected by feeding out a marginal amount of the packaging film YA1 accumulated in the hand-moving mechanism. You may drive.

  An example of the breaking device forming apparatus 40 will be described with reference to FIG. FIG. 3 is a schematic front view showing an example of the rupture means forming device 40.

  The breaking device forming device 40 is, for example, a die roll cutter device 40 that forms the breaking device 32 on the drawing path of the band-shaped film YA1 from the raw material roll YB1 to the bag making device 214 (see FIG. 9). As shown in FIG. 10, the die roll cutter device 40 includes a pair of die rolls 441 and 442 arranged with the film YA1 interposed therebetween, and one die roll 441 has a cutter 443 for forming the breaking unit 32. In addition, the driving mechanism 444 applies a rotational force.

  The drive mechanism 444 may be a drive motor itself or a mechanism for transmitting power from a separately provided drive motor. In any case, the die roll 441 can be driven to rotate intermittently, makes one rotation at a predetermined timing, sandwiches the film YA1 between the cutter 443 and the other die roll 442, and breaks the die 441 into a predetermined shape. A perforation 32 is formed. Also, since the cutter 443 is in a non-contact state with the film YA1 while the die roll 441 is stopped, a predetermined space is formed between the pair of die rolls 441 and 442, and the film YA1 can move smoothly.

  Note that the center seal device 216 may be a rotary seal device.

  Further, the top seal device 218 may be a rotary type. FIG. 11 is a front view showing another example of the top sealing device 218 of the pillow packaging machine 20 of the present embodiment. The top seal device 218 may be a rotary type including top sealers 218A ′ and 218B ′ connected to the pair of rotating shafts 302, respectively.

  In the rotary type top seal device 218, for example, top sealers 218A 'and 218B' are respectively attached to rotating shafts 302 which are arranged oppositely above and below a conveyed packaging material YA1 as shown in FIG. At this time, the peripheral surfaces of the tips of the top sealers 218A 'and 218B' that mesh with each other serve as sealing surfaces, and the sealing surfaces of the top and bottom disposed top sealers 218A 'and 218B' come into contact with each other to sandwich the packaging material YA1. It has become. Since a heater is built in the top sealers 218A 'and 218B', the packaging material YA1 is heated and melted by sandwiching the packaging material YA1, whereby the heat sealing and sealing are performed. ing.

  Further, a cutter blade 304 or a receiving blade 305 is built in the opposing surfaces of the top sealers 218A 'and 218B'. It is designed to cut in the direction.

  Further, the article supply device 202 may be one in which a plurality of belt conveyors are arranged in series and the articles XA1 are sent to the packaging machine main body 204 at predetermined intervals.

  In the case of a configuration in which the separation piece 33 is removed from the first packaging material YA11, the second seal portion 13 is difficult to peel off, and the lower end of the second seal portion 13 in the length direction L (the second seal portion 13 and the first seal portion 13). Breaking means 32 (a perforation or an easy-cut processing line) may be provided in the region between the length directions L of the portions 14 to separate the separation pieces 33.

  As described above, the packaging bag 30 of the present invention is a packaging bag 30 provided with the sealing portion SE for accommodating and opening the container (article) XA1 therein. The material YA1 (YA11, YA12) is a superimposed portion of the packaging material YA1 in which the sealing material (YA11, YA12) is overlapped and sealed. And a second seal portion 13 formed at an interval. At least one of the superposed packaging materials YA1 (YA11, YA12) is provided between the first seal portion 14 and the second seal portion 13. A sealing means 16 that can be re-adhered to one of the packaging materials YA12 which is a superposed surface of the sealing material 16 is provided, and the sealing means 16 separates a peeling portion (separation piece) 33 provided on the other packaging material YA11. At least partly Exposed, thereby enabling bonding with the other of the outer surface of the packaging material YA11, a packaging bag 30.

  Further, the peeling portion 33 at least partially overlaps the sealing means 16 to be exposed, and comes from peeling starting points (starting points of breakage) S1 and S2 provided at an excessive portion outside the second seal portion 13 to a fragile portion (breaking point). (Means) 32.

  Further, the packaging material YA11 provided with the peeling portion 33 may be provided with the opening assisting means 35 on the accommodation space side, and may be opened by peeling the peeling portion 33 from the opening assisting means 35. .

  Further, the peeled portion 33 that has been peeled off may be connected to one of the packaging materials YA12 by the second seal portion 13.

  Further, an overlapping portion (center seal portion CE1) of the packaging material YA1 is provided in a direction intersecting the first seal portion 14 and the second seal portion 13, and the opening assisting means 35 is provided in the overlapping portion. It may be something.

  Further, the fragile portion 32 may be a perforation or an easily cut processing line.

  Further, the sealing means 16 may be provided on each superposed surface of the superposed packaging material YA1.

  Further, the sealing means 16 of the respective overlapping surfaces of the packaging material YA1 may be provided so as to be alternate with each other.

  The package 10 of the present invention is a package 10 including the above-described packaging bag 30.

  As described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit and technical idea thereof.

  That is, in the above embodiment, the position, size, shape, material, direction, quantity, and the like of each component can be changed as appropriate. For example, the packaging form is not limited to the case of the pillow package 10, and the present invention can be applied to various packages such as a three-side seal package or a four-side seal package, or a package in which the article XA1 is packaged in a packaging bag. .

10 Package (pillow package)
11 inner packet parts 13, 14, 15 seal part 16 sealing means, adhesive layer 20 packaging machine (pillow packaging machine)
31 Fragile area 32 Breaking means (perforation, easy-cut processing line)
33 Separating piece 35 Opening aid (opening notch)
202 Article supply device 203 Film supply device 204 Packaging machine main body 205 Sprocket 206 Chain 207 Finger 208 Raw material shaft 209a Guide roller 209b Guide roller 210 Pinch roller 211 Upstream belt conveyor 212 Downstream belt conveyor 214 Bag making device 216 Center sealing device 216a Bar sealer 216b Press roller 218 Top seal device 218A Top sealer 250 Sealing means forming device (adhesive coating device)
251 Injection nozzle 252 Cooling means 255 Cylinder

Claims (9)

A packaging bag provided with a sealing portion for storing and opening the contents therein,
The sealing portion is a superposed portion of the packaging material in which the packaging material is overlapped and sealed, and the sealing portion is formed at a distance from the first sealing portion adjacent to the accommodation space of the container and the first sealing portion. With a second seal part,
Between the first seal portion and the second seal portion, sealing means capable of re-attaching to at least one superposed surface of the superposed packaging material is provided,
The sealing means is at least partially exposed by peeling a peeling portion provided on the other packaging material, and can be bonded to the outer surface of the other packaging material.
A packaging bag, characterized in that: The peeling portion is at least partially overlapped with the sealing means to be exposed, and is peeled along a weak portion from a peeling starting point provided in an excess portion outside the second seal portion.
The packaging bag according to claim 1, wherein: The packaging material provided with the peeling portion is provided with opening assisting means on the accommodation space side, and is opened by peeling the peeling portion from the opening assisting means,
The packaging bag according to claim 1, wherein: The peeled portion that has been peeled off is connected to the one packaging material at the second seal portion,
The packaging bag according to claim 3, wherein: An overlap portion of the packaging material is provided in a direction intersecting the first seal portion and the second seal portion, and the opening assisting means is provided in the overlap portion.
The packaging bag according to claim 3 or 4, wherein: The fragile portion is a perforation or an easily cut processing line,
3. The packaging bag according to claim 2, wherein: On each superposed surface of the superposed packaging material, the sealing means is provided,
The packaging bag according to any one of claims 1 to 6, wherein: The sealing means of each superposed surface of the packaging material is provided so as to alternate with each other,
The packaging bag according to claim 6, wherein:   A package comprising the packaging bag according to claim 1.

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