JP4856412B2 - Packaging bags and packages - Google Patents

Description

  The present invention relates to a packaging bag capable of forming a handle for transportation. More specifically, a plurality of cuts are intermittently arranged along the shape of the handle on the upper edge side of the bag, and a handle is formed by cutting between the intermittently arranged cuts. It relates to a packaging bag that can be.

  Conventionally, a packaging bag made of a resin film has been used as a packaging bag for packaging disposable paper products such as disposable diapers, sanitary napkins, toilet paper, tissue paper and the like.

  As such a packaging bag, a bag having a carrying handle is generally formed for the convenience of carrying the package. For example, in the packaging bag 100 shown in FIG. 1, an opening 4 for inserting a finger is formed in advance in a flap portion 8 formed on the upper edge 2 side, and a handle 6 is formed on the periphery of the opening 4. Is a packaging bag formed (see, for example, Patent Document 1).

  Further, the packaging bag 110 shown in FIG. 2 has an opening 4 formed by cutting a part of the flap portion 8 formed on the upper edge 2 side thereof into a shape that is convex toward the upper edge 2 side of the bag. It is a packaging bag in which a handle 6 is formed on the periphery of the opening 4 (see, for example, Patent Document 2).

  Unlike the packaging bag 100 shown in FIG. 1, the packaging bag 110 shown in FIG. 2 does not generate a cut piece (trim) corresponding to the opening 4. Therefore, in addition to being able to be easily manufactured without the need for removing the cut piece at the time of manufacture, it is possible to expect an effect that unnecessary waste is not generated at the time of use. However, since the packaging bag described in Patent Document 2 has the uncut portion 10 having a free end from the manufacturing stage of the packaging bag 110, like the packaging bag 110 shown in FIG. Due to the uncut portion 10 that hangs down, there is a problem in that there is a risk of appearance failure such as a crease being formed in an originally unnecessary portion.

  In order to solve such problems of the prior art, a plurality of cuts are intermittently arranged along the shape of the handle on the upper edge of the bag, and the gaps between the intermittent cuts are cut. Thus, a packaging bag capable of forming a handle has been proposed (no prior art document relating to such a packaging bag is found).

  For example, in the packaging bag 120 shown in FIG. 3, a plurality of cuts 12 are intermittently arranged in the flap portion 8 formed on the upper edge 2 side, and between the intermittently arranged cuts 12 ( The handle 6 can be formed by cutting 14 in the figure: hereinafter referred to as “discontinuous portion”.

Japanese Patent Laid-Open No. 11-91797 (paragraph 0019, FIG. 1) Japanese Utility Model Publication No. 7-24764 (paragraph 0017, FIG. 1)

  The packaging bag 120 shown in FIG. 3 also remains in the bag as an uncut portion having a free end at the portion corresponding to the opening, so that a cut piece at the portion corresponding to the opening does not occur. Therefore, the same effect as the packaging bag described in Patent Document 2 (for example, the packaging bag 110 shown in FIG. 2) can be expected. Moreover, since it forms a handle at the time of use, unlike the packaging bag of patent document 2, there is no uncut part which has a free end in a manufacture stage. Therefore, there is no problem that a defect in appearance occurs, for example, a crease is formed in an originally unnecessary portion due to an uncut portion that hangs at random. As described above, the packaging bag 120 shown in FIG. 3 can solve the technical problems of the packaging bags described in Patent Documents 1 and 2 (see FIGS. 1 and 2).

  However, the packaging bag 120 shown in FIG. 3 may break the handle 6 when the package 123 is transported, and still has problems to be solved in terms of strength and durability of the handle 6. It was.

  The present invention has been made to solve such problems of the prior art, and has high grip strength and durability, and effectively prevents the handle from being broken when the package is transported. The present invention provides a packaging bag and a package that can be used.

As a result of intensive studies to solve the problems of the prior art as described above, the present inventor may cause a tear in the handle when forming the handle, and this tear reduces the strength and durability of the handle. I got the knowledge that. And the said subject is solved by making the cut | interruption for forming a handle into the shape where the edge part curves or bends in the inner direction of the part corresponded to the opening part formed in the center of a handle. The present invention has been completed. Specifically, the following packaging bags and packages are provided by the present invention.

[1] A packaging bag capable of forming a handle for transportation, wherein a plurality of cuts are intermittently arranged along the shape of the handle on the upper edge side, and at least one of the plurality of cuts. cut parts are the ends, packaging bag is cut in a curved or shaped formed by bending inwardly a portion corresponding to the opening formed in the center of the handle.

[2] At least a part of the plurality of cuts is a cut having a shape in which both ends thereof are curved inwardly of a portion corresponding to an opening formed at the center of the handle [1]. ] The packaging bag as described in.

[3] A plurality of cuts are intermittently arranged in a shape that is convex toward the upper edge of the bag, and among the plurality of cuts, a cut arranged at least along the upper edge of the bag is In the above [1] or [2], which is a cut in a shape in which an end portion is curved or bent in an inner direction of a portion corresponding to an opening formed in the center of the handle and in a lower end edge direction of the bag. The packaging bag described.

[4] The above-described [1] to [3], which are formed of a gusset tube having flanges formed on both side edges, and are configured in a bag shape by sealing one end opening of the gusset tube. A packaging bag according to any one of the above.

[5] A package including a packaged body and the packaging bag according to any one of [1] to [4], wherein the packaged body is enclosed in the packaging bag.

  The packaging bag and package of the present invention have high handle strength and durability, and can effectively prevent the handle from being broken when the package is transported.

  Hereinafter, the best mode for carrying out the packaging bag and package of the present invention will be specifically described with reference to the drawings. However, the present invention broadly encompasses packaging bags and packages having the invention-specific matters, and is not limited to the following embodiments.

[1] Configuration of the present invention:
The packaging bag of the present invention is a packaging bag that can form a handle for transportation. For example, as shown in the packaging bag 1 shown in FIG. 4, a plurality of bags are formed on the upper edge 2 side along the shape of the handle 6. The cuts 12 are intermittently arranged, and at least some of the cuts 12 are bent or bent in the inner direction of the part corresponding to the opening formed at the center of the handle. This is a cut having a shape to be formed (hereinafter, sometimes referred to as an “end bending cut”). This packaging bag 1 can form the handle 6 by pushing a portion corresponding to the opening at the center of the handle 6 with fingers and cutting between the discontinuous cuts 12 (discontinuous portion 14). .

[1-1] Effects based on the above configuration:
The packaging bag of the present invention forms the handle 6 by forming at least some of the cuts 12a, 12b, 12c among the plurality of cuts 12 as end bent cuts, like the packaging bag 1 shown in FIG. In this case, the handle 6 is made difficult to cause a tear, and the strength and durability of the handle 6 are improved. Hereinafter, in addition to FIG. 4, the process will be described in detail with reference to process diagrams showing the state before and after the handle formation in FIG.

The packaging bag 1 shown in FIGS. 4 and 5 has at least some of the cuts 12a, 12b, and 12c among the plurality of cuts 12 as end bent cuts. Therefore, when a force is applied to the portion corresponding to the opening 4, the cut 12 is bent in the end portion (in the inner direction of the portion corresponding to the opening 4 formed at the center of the handle 6, in the example of the packaging bag 1. The bag is characterized by being stretched toward the bottom edge 16 direction of the bag.

In such a packaging bag 1, the cutting part 18 has a shape that is convex toward the inside direction of the opening 4 formed in the center of the handle 6 (in the direction of the lower edge 16 of the bag in the example of the packaging bag 1). On the other hand, the tear 20 is easily formed in a shape that becomes concave toward the inside of the portion corresponding to the opening 4 formed in the center of the handle 6 . That is, since the tear 20 that causes the breakage of the handle 6 can be guided to be formed not on the handle 6 side but on the uncut portion 10 side, the handle 6 is less likely to be damaged by the tear. The strength and durability of the handle 6 can be improved.

  On the other hand, when the cut 12 is simply shaped to match the locus of the handle 6 as in the packaging bag 120 shown in FIGS. 3 and 6, if force is applied to the portion corresponding to the opening 4, the cut 12 Will be stretched in random directions. That is, since the formation direction of the tear 20 cannot be controlled, the tear 20 may be formed on the handle 6 side (see FIG. 6, “Shape 1 after cutting”). In such a case, the strength and durability of the handle 6 are inevitably lowered. Therefore, when the package 123 is transported, the weight is concentrated on the tear 20 and the situation where the handle 6 is broken is avoided. Difficult to do.

[1-2] Break:
The packaging bag of the present invention is characterized by a cut shape for forming a handle. Specifically, the cut has a characteristic configuration in which the end portion is curved or bent in the inner direction of the portion corresponding to the opening formed in the center of the handle .

  In the present specification, the “cut” means a slit formed so as to penetrate the film-like material constituting the packaging bag. In the present invention, a plurality of cuts are intermittently arranged along the shape of the handle on the upper edge side of the bag. The “upper edge” of the bag means the edge of the upper portion when carrying the packaging bag or package. Arrangement on the “upper edge side” of the bag is for convenience of carrying. In the packaging bag 1 shown in FIGS. 4 and 5, a cut 12 is arranged in the flap portion 8 formed on the upper edge 2 side. ing.

  Further, “intermittently arranged” means that a plurality of discontinuities are arranged so as to be continuous as a whole through discontinuous portions therebetween. Specifically, a plurality of cuts may be perforated by being arranged in a broken line, or a configuration in which relatively long cuts are connected by dotted or short linear discontinuous parts. It may be. For example, the packaging bag 1 shown in FIGS. 4 and 5 has a configuration in which the relatively long cuts 12 are connected by dotted or short linear discontinuous portions 14.

  Since the cut is arranged along the shape of the handle, the basic shape (the shape excluding the end) may be a straight line or a curved line. For example, the packaging bag 1 shown in FIG. 4 and FIG. 5 has a basic shape for the central cut 12b out of three cuts 12a, 12b, and 12c, and a basic shape for the left and right cuts 12a and 12c. Is an example of a curved line.

The bending direction of the cut is defined as “ inward direction of the portion corresponding to the opening formed in the center of the handle ”. When the discontinuous portion between the cuts is cut, the cut is extended to the handle side. This is to prevent this. Normally, the handle is formed in an annular shape having an opening at the center. Therefore, if the end of the cut is bent inside the portion corresponding to the opening, the cut extends inside the portion corresponding to the opening. Can be induced to. For example, the packaging bag 1 shown in FIGS. 4 and 5 is an example in which the end of the cut 12 is bent to the lower edge 16 side where the opening 4 is formed.

  Since the bent shape of the cut end is a “curved or bent shape”, it may be a curved bent shape (curved) as in the case where R is attached to the end of the straight line. It may be a linear bent shape (bent) that is bent at a certain point. Among them, a curved shape is preferable in that maintenance of the cutter that forms the cut is easy. For example, the packaging bag 1 shown in FIGS. 4 and 5 is an example in which the end of the cut 12 is curved.

  The cut has the effect of the present invention only by making one end thereof bent as described above, but exhibits a higher effect by making both ends bent as described above. For example, the packaging bag 1 shown in FIGS. 4 and 5 has a shape in which both ends of the three cuts 12a, 12b, and 12c are curved at the center, and the left and right cuts 12a and 12c are curved. Is an example in which only the end on the cut 12b side is curved.

  In the present invention, “at least a part of the cuts” need to be the end bend cuts as described above, but all the cuts need not be the end bend cuts.

  In a packaging bag for packaging disposable paper products, for example, as in the packaging bag 1 shown in FIGS. 4 and 5, a plurality of cuts 12 are intermittently formed in a shape that protrudes toward the upper edge 2 of the bag. The arrangement to arrange may be adopted. Such a configuration has no excess uncut portion 10 in the grip portion of the handle 6 as compared to the case where the bag is intermittently arranged in a shape that protrudes toward the lower edge 16 of the bag. This is preferable because it is easy to grasp.

  When adopting the configuration as described above, among the plurality of cut lines 12a, 12b, 12c, at least the cut line 12b arranged along the upper edge 2 of the bag, the end portion thereof in the direction of the lower edge 16 of the bag. One preferred form is a cut line that is curved or bent. Since the weight of the package 3 acts on the upper portion of the opening 4 in the handle 6 in a concentrated manner, the cut 12b disposed along the upper edge 2 of the bag is used as an end bent cut. The situation that the handle 6 is broken when the body 3 is transported can be effectively prevented.

[2] Overall configuration of packaging bag:
The packaging bag of the present invention can form a handle by cutting a discontinuous portion between intermittently arranged cuts, and has at least one end bent cut as described above. As long as there is, there is no restriction | limiting in particular about the whole structure. However, the packaging bag of the present invention can be suitably used for a so-called gusset type packaging bag.

  The gusset-type packaging bag is composed of a gusset tube 30 having ribs 26 and 28 formed on both side edges 22 and 24 as shown in FIG. 7, and the edge opening of the gusset tube 30 is sealed. Thus, the packaging bag 32 is formed in a bag shape as a whole. Normally, as shown in FIG. 7, two linear sealing portions 34 and 36 are formed along the upper edge 2, the end opening on the upper edge 2 side is sealed, and the end on the lower edge 16 side is sealed. Let it be a bag-like shape with an open part. This sealing part can be formed by a conventionally known method such as heat sealing.

  The gusset tube is made of a film material made of resin. There is no restriction | limiting in particular about the kind of resin which comprises a film-form material, Usually, resin, such as polyethylene and a polypropylene used for a packaging bag, can be used. Among these, a polyethylene film is preferable in terms of stretchability and strength, and a polyethylene film containing titanium oxide is more preferable in order to increase the opacity of the bag. The thickness of the film-like material varies depending on the type and weight of the packaged body, but is preferably 50 to 110 μm, and more preferably 65 to 90 μm.

  A collar part means the collar-shaped part comprised so that it might spread when a to-be-packaged body was packed in the bag. In general, a crease is generally formed in the order of a mountain fold line, a valley fold line, and a mountain fold line to form a hook shape. By adjusting the interval between the mountain fold line and the valley fold line, the width of the collar portion to be formed can be adjusted. The width | variety of a collar part can be suitably selected according to the shape etc. of a to-be-packaged body. For example, in the case of a packaging bag for packaging a disposable diaper for children, it may be about 100 to 260 mm, and in the case of a packaging bag for packaging a disposable diaper for adults, it may be about 120 to 320 mm. .

  Hereinafter, an example in the case of manufacturing the packaging bag 1 and the packaging body 3 shown in FIG. 4 will be described with reference to an example of a method for manufacturing the packaging bag and the packaging body of the present invention using a gusset tube.

  The packaging bag 1 and the package 3 shown in FIG. 4 can be manufactured by a method as shown in FIG. First, a gusset tube 30 having flanges 26 and 28 formed on both side edges 22 and 24 is prepared. Next, one edge opening (opening on the upper edge 2 side in FIG. 7) of the gusset tube 30 is sealed by heat sealing to form a bag with the lower edge 16 opened. Sealing is performed by forming two linear sealing portions 34 and 36 along the upper edge 2 of the gusset tube 30. The flap portion 8 is between the two sealing portions 34 and 36.

  Furthermore, a plurality of cuts 12a, 12b, and 12c are intermittently arranged in the flap portion 8 along the shape of the handle. At this time, the packaging bag 1 shown in FIGS. 4 and 5 can be obtained by setting at least some of the cuts 12a, 12b, and 12c among the plurality of cuts 12a, 12b, and 12c as end bent cuts. The end bend cut can be formed by punching with a cutter having a desired bent shape at the end.

  A packaged body 38 (for example, a bundle of folded disposable diapers or the like) is inserted from the opening on the lower end edge 16 side of the packaging bag 1, and the opening on the lower end edge 16 side is sealed by heat sealing. The package 3 shown in FIGS. 4 and 5 can be manufactured by forming the sealing portion in the same manner as the second side.

  In addition, you may form perforation for opening the packaging bag and taking out a to-be-packaged body in the packaging bag of this invention. By forming such a perforation, it is possible to take out the package body as the contents relatively easily and without requiring force. The formation position of the perforation is not particularly limited, and may be formed at a position where the packaged body can be easily taken out. For example, the packaging bag 1 shown in FIG. 4 is the example which formed the perforation 5 from the inclined surface of the front side of a bag to the front surface. In this example, the perforations 5 are arranged so as to be corrugated as a whole.

  The packaging bag and package of the present invention can be used for packaging applications such as disposable diapers, sanitary napkins, toilet paper, and tissue paper. And the packaging bag and package of the present invention have high strength and durability of the handle, and when the package is transported, the handle is not easily broken. It can be particularly suitably used for packaging applications such as toilet paper and disposable diapers.

It is a perspective view which shows one Embodiment of the conventional packaging bag and a package, and is a perspective view which shows the state which looked at the packaging bag and the package from the front side. It is a perspective view which shows another embodiment of the conventional packaging bag and a package, and is a perspective view which shows the state which looked at the packaging bag and the package from the front side. It is a perspective view which shows another embodiment of the conventional packaging bag and a package, and is a perspective view which shows the state which looked at the packaging bag and the package from the front side. It is a perspective view which shows one Embodiment of the packaging bag and packaging body of this invention, and is a perspective view which shows the state which looked at the packaging bag and the packaging body from the front side. It is process drawing which shows the state before and after the handle formation of the packaging bag shown in FIG. 4, and is process drawing which shows the shape of the flap part before and behind cut | disconnecting a discontinuous part. It is process drawing which shows the state before and after the handle formation of the packaging bag shown in FIG. 3, and is process drawing which shows the shape of the flap part before and behind cut | disconnecting a discontinuous part. It is process drawing which shows the process of manufacturing the packaging bag and package of this invention.

Explanation of symbols

1, 32, 100, 110, 120: packaging bag, 2: upper edge, 3, 103, 113, 123: packaging, 4: opening, 5: perforation, 6: handle, 8: flap, 10: Uncut part, 12: cut, 14: discontinuous part, 16: lower end edge, 18: cut part, 20: tear, 22, 24: side edge, 26, 28: collar part, 30: gusset tube, 34, 36 : Sealing part, 38: Packaged body.

Claims (5)

A packaging bag capable of forming a handle for transportation,
A plurality of cuts are intermittently arranged on the upper edge side along the shape of the handle,
A packaging bag in which at least some of the plurality of cuts are cut or bent in an inner direction of a portion corresponding to an opening formed at the center of the handle . 2. The cut according to claim 1 , wherein at least some of the plurality of cuts are cut in a shape in which both ends thereof are curved inwardly of a portion corresponding to an opening formed at a center of the handle . Packaging bag. A plurality of cuts are intermittently arranged in a shape that is convex toward the upper edge side of the bag,
Of the plurality of cuts, the cut arranged at least along the upper edge of the bag has an end portion inward of a portion corresponding to an opening formed at the center of the handle, and a lower end of the bag. The packaging bag according to claim 1 or 2, wherein the packaging bag is a cut having a shape curved or bent in the edge direction.   It consists of a gusset tube by which the collar part was formed in the both-sides edge, and is comprised by the bag shape by sealing one edge opening of the said gusset tube. Packaging bags. A package body and a packaging bag according to any one of claims 1 to 4,
A package body in which the package body is enclosed in the packaging bag.

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