Packaging bags

Abstract

To facilitate eliminating cut portions overlapping with each other by employing a configuration in which only one cut portion is formed in an intersection area of vertical and horizontal cut rows according to the present invention relating to a preferable packaging bag for sealing and packaging, for example, a sheet-like percutaneous absorbent.SOLUTION: In an intersection area 50 between one opening processing part 30 and the other opening processing part 40, at least cut rows 82 located at both ends in a width direction out of cut rows 82 of the one opening processing part 30 become skip parts 90 and 91 where cut parts 80 are not formed by the amount equivalent to a length corresponding to that in a width direction of the other opening processing part 40, and the cut parts 80 of the other opening processing part 40 are formed inside the skip parts 90 and 91. Further, the cut parts 80 of the one opening processing part 30 are formed between the cut parts 80 located inside one group of skip parts 90 and 91 and the cut parts 80 located inside the other group of skip parts 90 and 91 of the other opening processing part 40.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a packaging bag suitable for sealing and packaging, for example, a sheet-like transdermal absorbent, and by devising a configuration of the intersection areas of the vertical and horizontal cut lines, the packaging bag can be opened smoothly and cleanly. [Background technology]

[0002] An example of this type of prior art is described in Patent Document 1. That is, the technology described in Patent Document 1 has opening assisting means provided in two directions, vertically and horizontally, and employs a configuration in which one opening assisting means does not encroach on the area of ​​the other opening assisting means (see Figure 1 of Cited Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-213923 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in conventional packaging bags, one end of the bag is formed only at a distance from the other end so that the means for assisting opening vertically and horizontally do not completely overlap. Therefore, when trying to tear the side of the means formed only at a distance first, there is a problem that the bag cannot be opened smoothly and cleanly depending on the user's grip position and the amount of force applied. Therefore, the present invention has been made to solve the conventional problems, and aims to provide a packaging bag that can be opened smoothly and cleanly in more cases by devising the configuration of the intersection area of ​​the vertical and horizontal cut rows. [Means for solving the problem]

[0005] A packaging bag according to one aspect of the present invention is a packaging bag that is rectangular in plan view and includes one opening processed portion that extends in one of the vertical and horizontal directions of the rectangle, and another opening processed portion that extends in the other of the vertical and horizontal directions, and each of the first opening processed portion and the other opening processed portion is formed by providing three or more rows of cuts in which a plurality of cuts are arranged in a line so that the cuts do not overlap each other, and in the intersection region between the first opening processed portion and the other opening processed portion, at least the cut rows located at both ends of the widthwise direction of the first opening processed portion are skip portions in which the cuts are not formed for a length that matches the widthwise length of the other opening processed portion, and the cuts of the other opening processed portion are formed within these skip portions, and further, a cut of one opening processed portion is formed between the cut located within one of the skip portions of the other opening processed portion and the cut located within the other skip portion.

[0006] In addition, a packaging bag according to one aspect of the present invention is characterized in that the cut portion is a V-shaped cut in which adjacent linear cuts in the width direction of the cut row are inclined in opposite directions to each other. In a packaging bag according to one aspect of the present invention, the cut portion is a linear cut that extends in the direction in which the row of cuts extends.

[0007] A packaging bag according to one aspect of the present invention is a packaging bag that is rectangular in plan view, and includes one opening processed portion that extends in one of the vertical and horizontal directions of the rectangle, and another opening processed portion that extends in the other of the vertical and horizontal directions, and each of the first opening processed portion and the other opening processed portion is formed by providing multiple rows of cuts in which multiple cuts are arranged in a line so that the cuts do not overlap each other, and the row of cuts has gaps between the multiple cuts extending in a straight line where no cuts of the row of cuts are formed, and in the intersection region between the first opening processed portion and the other opening processed portion, each cut of the first opening processed portion is located at each gap of the other opening processed portion, and each cut of the other opening processed portion is located at each gap of the first opening processed portion. [Effects of the Invention]

[0008] The packaging bag according to one aspect of the present invention has the effect of being able to be opened smoothly and cleanly in more cases. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a plan view of a packaging bag for a transdermal absorbent according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a partial cross-sectional view of the packaging bag of FIG. [Figure 3] FIG. 2 is a partially enlarged view of the packaging bag of FIG. [Figure 4] 10 is a partially enlarged view of a packaging bag with a row of cuts according to another embodiment of the present invention. FIG.

[0010] (Embodiment) DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The drawings are schematic, and the relationship between thickness and planar dimensions, the thickness ratio of each part, etc., differ from the actual ones. Furthermore, the embodiments shown below are merely examples of configurations for embodying the technical idea of ​​the present invention, and the technical idea of ​​the present invention does not specify the materials, shapes, structures, etc. of the components to be described below. The technical idea of ​​the present invention can be modified in various ways within the technical scope defined by the claims.

[0011] (packaging bag 10) As shown in Fig. 1, the packaging bag 10 has a rectangular shape in a plan view and is made of a packaging material 60. That is, the packaging bag 10 is a bag made of two sheets of packaging material 60 and sealed on four or three sides, and the packaging material 60 has opening processed portions 30, 40 on two sides. A sheet-like transdermal absorbent 20 is stored in a storage section 66 within the bag formed by the two sheets of packaging material 60, and each of the four sides of the packaging material 60 is heat-sealed to form a sealed section 70. Specifically, the sealed section 70 comprises a first sealed section 71 along the right side, a second sealed section 72 along the upper side, a third sealed section 73 along the left side, and a fourth sealed section 74 along the lower side, and these four sealed sections seal the packaging bag 10 on all four sides and isolate it from the outside. The front and back surfaces of the packaging bag 10 are provided with a rectangular opening processed portion 30 extending in the horizontal direction and an opening processed portion 40 extending in the vertical direction. The longitudinal and transverse tear features 30, 40 intersect midway along their lengths, with an intersection region 50 located between the longitudinal and transverse tear features 30, 40.

[0012] (packaging material 60) The packaging material 60 is made by cutting a sheet having a laminated structure of two or more layers, mainly made of synthetic resin film as a base material, into a predetermined size. 2, the laminated structure has, for example, a base layer 61 and a sealant layer 62 on the inner surface of the bag. With the transdermal absorbent 20 to be packaged housed inside, the front and back linings 1a and 1b of the bag are heat-sealed along each of the four sides to form a sealed, flat, rectangular packaging bag 10 with a so-called four-sided seal. As is well known, the transdermal absorbent 20 to be packaged is made by applying a drug-containing adhesive or glue-like drug to a base sheet such as cloth, nonwoven fabric, or synthetic resin sheet, and is generally in the form of a roughly rectangular sheet.

[0013] (Unpacking processing section 30, 40) Each of the vertical and horizontal opening processing sections 30, 40 is formed by providing three or more, for example four, rows of cuts 82, in which multiple cuts 80 are arranged in a row so that the cuts 80 do not overlap each other, as shown in Figures 2 and 3. The cut row 82 is formed by alternately connecting a plurality of cut sections 80, each of which extends linearly in the same direction as the longitudinal direction of the cut row 82, with gaps 81 between them. The cut sections 80 are half-cut from the bag front side 64 and the bag back side 65 of the packaging material 60 toward the base material layer 11, and do not penetrate the sealant layer 13. The horizontal opening processed portion 30 is composed of four rows of cuts 82, L1 to L4.

[0014] The vertically oriented tearing processed portion 40 is composed of four rows of cut lines 82, M1 to M4, the same number as the horizontally oriented tearing processed portion 30. In the intersection region 50 between the horizontally oriented opening processed portion 30 and the vertically oriented opening processed portion 40, two of the four cut rows 82 of the horizontally oriented opening processed portion 30, which are located at both ends in the width direction (L1, L4), are skip sections 90, 91 where no cut sections 80 are formed for a length that matches the width direction of the vertically oriented opening processed portion 40, and the cut sections 80 of the vertically oriented opening processed portion 40 are formed within these skip sections 90, 91. Note that the cut sections 80 of the horizontally oriented opening processed portion 30 are formed between the cut sections 80 located in one skip section 90 of the vertically oriented opening processed portion 40 and the cut sections 80 located in the other skip section 91. In other words, of the four cut rows 82 of the horizontally oriented opening processed portion 30, the two cut rows 82 (L2, L3) located on the inner side in the width direction are not interrupted even within the intersection region 50.

[0015] (Upper and lower skip sections 90 and 91) In this embodiment, the skip portions 90, 91 are formed only in the first row L1 and the fourth row L4 of the horizontal opening processed portion 30. Four cut portions 80 that constitute the vertical opening processed portion 40 are formed in the upper skip portion 90 located in the first row L1. Four cut portions 80 of the vertical opening processed portion 40 are also formed in the lower skip portion 91 located in the fourth row L4. Furthermore, the second row L2 and the third row L3 of the horizontal opening processed portion 30 are formed without interruption between the upper and lower skip portions 90, 91.

[0016] (Opening of opening processed parts 30, 40) When a user opens the packaging bag 10 to remove the transdermal absorbent 20, they will tear the row of cuts 82 in either the horizontal opening section 30 or the vertical opening section 40, and then tear the row of cuts 82 in the other opening section 30, 40. However, which of the opening sections 30, 40 is torn first will vary from user to user, and even for the same user, it will not always be the same. Therefore, it is desirable for the packaging bag 10 to be able to be opened without any problems in both cases: when the horizontal opening section 30 is torn first, and when the vertical opening section 40 is torn first.

[0017] First, suppose that one of the cut rows 82 in the first row L1 to the fourth row L4 shown in FIG. 3 is torn from the starting end 31 toward the ending end 32 of the horizontal opening processed portion 30 in FIG. 1 (or from the ending end 32 toward the starting end 31). In this case, too, which of the cut rows 82 in the first row L1 to the fourth row L4 is torn depends on the user's grip position and the amount of force applied. However, if the second row L2 or the third row L3 of the cut row 82 is torn, these cut rows 82 (L2, L3) are not interrupted even within the intersection region 50, so the tearing continues and smoothly reaches the ending end 33. In contrast, if the first row L1 or the fourth row L4 of the cut row 82 is torn, the tearing action will be temporarily interrupted by the skip portion 90 or 91 when the intersection region 50 is reached. However, since the second or third row of cuts 82 (L2, L3) is formed immediately adjacent to the row of cuts 82 (L1, L4), it is highly likely that the tearing action will be continued by one of the rows of cuts 82 (L2, L3), and therefore in most cases the tearing will be continuous and will reach the end end 33 smoothly.

[0018] On the other hand, suppose that the vertically oriented opening processed portion 40 is first torn from the starting end 41 to the ending end 42 in FIG. 1 (or from the ending end 42 to the starting end 41), tearing the first row M1 to the fourth row M4 of cut lines 82 shown in FIG. 3. In this case, too, which of the first row M1 to the fourth row M4 of cut lines 82 is torn depends on the user's grip position and the amount of force applied, but no matter which of the first row M1 to the fourth row M4 of cut lines 82 is torn, the skip section 90 or 91 will be reached without any problems. Although the tearing is interrupted for a moment in one of the skip sections 90 and 91, the first row M1 to the fourth row M4 of the cut lines 82 are formed in the other of the skip sections 90 and 91, and only two rows of cut lines 80 (L2, L3), which are a part of the four rows of cut lines 80 (L1 to L4), are formed between the skip sections 90 and 91, rather than all four rows of cut lines 80 (L1 to L4).Therefore, even if the tearing direction is slightly unstable, the tearing is immediately continued in the cut lines 80 (M1 to M4) formed in the other of the skip sections 90 and 91.

[0019] That is, even if the vertically oriented opening processed portion 40 is first torn from the starting end 41 to the ending end 42 in FIG. 1 , when passing the skip portion 91, the tear along the cut row 82 of the vertically oriented opening processed portion 40 is likely to be transmitted from the lower skip portion 91 to the upper skip portion 90. However, if the ends of the vertically oriented opening processed portion 40 are separated by four rows at the intersection region 50, there is a relatively high probability that the tear will not be transmitted depending on the amount of force applied, and a clean opening will not be achieved. In contrast, with the configuration of this embodiment, the distance between the upper and lower skip portions 90, 91 is shortened to two rows, so that even when the vertically oriented opening processed portion 40 is first torn, smooth and clean opening from the starting end 41 to the ending end 42 can be achieved with a high probability. As for the tearing processed portion 30 or 40, which is the last to be torn, tearing up to the intersection region 50 completes the opening, so the package can be opened smoothly and cleanly without any particular problems.

[0020] In this way, even if the cutting edge starts from either of the cut rows 82 of the vertical and horizontal opening processed portions 30, 40, there is a high probability that the tear will be smooth and clean all the way to the end end 32, 42 (or the start end 31, 41). Therefore, even if the user's gripping position and the amount of force applied vary, in most cases the two adjacent vertical and horizontal sides can be easily opened wide in a hook-like manner, and the transdermal absorbent 20 contained inside can be easily removed. Furthermore, even in the intersection region 50 of the vertical and horizontal opening processing sections 30, 40, the cut sections 80 do not overlap each other, so there are no corners in the base material layer 61 that would be created when the cuts overlap in an intersecting manner, and there is an advantage that even if an external force is applied in the direction of peeling it off, there is extremely little chance that the base material layer 61 of the packaging material 60 will be rolled up at the formation position of the cut section 80.

[0021] (Other embodiments) Figure 4 shows the main parts of another embodiment of the present invention. The overall configuration of this embodiment is the same as that shown in Figure 1 of the first embodiment. Also, like the first embodiment, the horizontally oriented opening processed section 30 is configured with four rows of cuts 82, and the vertically oriented opening processed section 40 is configured with four rows of cuts 82. Also, although not shown, the horizontally oriented opening processed section 30 has upper and lower skip sections 110, 111 formed therein, also like the first embodiment.

[0022] As shown in FIG. 4, the row of cuts 82 alternately continues with linearly extending cut portions 80 and predetermined interval portions 81 in between, similar to the first embodiment. In another embodiment, in the intersection region 50 of the vertical and horizontal opening processing sections 30, 40, each cut section 80 of the horizontal opening processing section 30 passes through each spacing section 81 of the vertical opening processing section 40, and each cut section 80 of the vertical opening processing section 40 passes through each spacing section 81 of the horizontal opening processing section 40.

[0023] In this way, in other embodiments, as in the first embodiment, if both the rows of cuts 82 in the vertical and horizontal opening processing sections 30, 40 can be torn all the way to the end end 42, the two adjacent vertical and horizontal sides can be easily opened wide in a hook-like manner, and the transdermal absorbent 20 stored inside can be easily removed.

[0024] Even with this configuration, as with the first embodiment, even if the user's gripping position and the amount of force applied vary, in most cases the two adjacent vertical and horizontal sides can be easily opened wide in a hook-like shape, and the transdermal absorbent 20 stored inside can be easily removed.

[0025] (Features and Effects of the Embodiments) The features and effects of the embodiment are as follows. (First feature) The first feature is that, as shown in FIG. 1, for example, a packaging bag 10 is rectangular in plan view, and includes one opening processed portion 30 extending in one of the vertical and horizontal directions of the rectangle, and another opening processed portion 40 extending in the other of the vertical and horizontal directions, and each of the first opening processed portion 30 and the other opening processed portion 40 is formed by providing three or more rows of cuts 82 in which a plurality of cuts 80 are arranged in a row so that the cuts 80 do not overlap each other, as shown in FIG. 3, for example, and in an intersection region 50 between the first opening processed portion 30 and the other opening processed portion 40, Of the cut rows 82 of each opening processing section 30, at least the cut rows 82 located at both ends in the width direction are skip sections 90, 91 in which no cut sections 80 are formed for a length that matches the width direction of the other opening processing section 40, and the cut sections 80 of the other opening processing section 40 are formed within these skip sections 90, 91, and further, the cut sections 80 of one opening processing section 30 are formed between the cut sections 80 located within one skip section 90 of the other opening processing section 40 and the cut sections 80 located within the other skip section 91.

[0026] (Effect of the first feature) According to the first feature, even if the cutting edge starts from any of the cut rows 82 of the vertical and horizontal opening processed portions 30, 40, there is a high probability that the tearing will be smooth and clean all the way to the end end 32, 42 (or the starting end 31, 41). Therefore, according to the first feature, even if the user's gripping position and the amount of force applied vary, in most cases the adjacent two vertical and horizontal sides can be easily opened wide in a hook-like manner, and the transdermal absorbent 20 contained inside can be easily removed. Furthermore, according to the first characteristic point, even in the intersection region 50 of the vertical and horizontal opening processing sections 30, 40, the cut sections 80 do not overlap each other, so there are no corners in the base material layer 61 that would be created when the cuts overlap in an intersecting manner, and there is also the advantage that even if an external force is applied in the direction of peeling it off, there is extremely little chance that the base material layer 61 of the packaging material 60 will be rolled up at the formation position of the cut section 80.

[0027] (Second feature) A second characteristic is that the cut portions 80 extend linearly along the cut row 82, as shown in FIG. (Effect of the second feature) According to the second feature, for example, as shown in FIG. 3, in the linear cut portions 80, overlapping between the cut portions 80 can be eliminated. Furthermore, according to the second characteristic point, the cut portion 80 extends linearly along the cut row 82, and therefore, although not shown, the structure is simpler than cuts in which adjacent linear cuts in the width direction of the cut row are arranged in a V-shape with opposite inclinations to each other, and overlapping of the cut portions can be relatively easily avoided even in the intersection region 50 of the vertical and horizontal opening processing portions 30, 40.

[0028] (Third feature) A third feature is that, as shown in Figure 4, for example, a packaging bag 10 is rectangular in plan view and includes one opening processed section 30 extending in one of the vertical and horizontal directions of the rectangle, and another opening processed section 40 extending in the other of the vertical and horizontal directions, and each of the first opening processed section 30 and the other opening processed section 40 is formed by providing multiple rows of cuts 82 in which multiple cuts 80 are arranged in a line so that the cuts 80 do not overlap each other, and the cut rows 82 have spacing sections 81 between the multiple cuts 80 extending in a straight line where the cuts 80 of the cut rows 82 are not formed, and in the intersection region 50 between the first opening processed section 30 and the other opening processed section 40, each cut 80 of the one opening processed section 30 is located at each spacing section 81 of the other opening processed section 40, and each cut 80 of the other opening processed section 40 is located at each spacing section 81 of the first opening processed section 30.

[0029] (Effect of the third feature) According to the third feature, regardless of which cut row 82 of the vertical and horizontal opening processed portions 30, 40 the cutting edge begins from, it is highly likely that the container will tear smoothly and cleanly all the way to the end end 32, 42 (or the start end 31, 41). Therefore, according to the third feature, even if the user's gripping position and the amount of force applied vary, in most cases the two adjacent vertical and horizontal sides can be easily opened wide in a hook-like manner, and the transdermal absorbent 20 contained inside can be easily removed.

[0030] Furthermore, according to the third characteristic point, even in the intersection region 50 of the vertical and horizontal opening processing sections 30, 40, the cut sections 80 do not overlap each other, so there are no corners in the base material layer 61 that would be created when the cut sections 80 overlap in an intersecting manner, and there is also the advantage that even if an external force is applied in the direction of peeling it off, there is extremely little chance that the base material layer 61 of the packaging material 60 will be rolled up at the formation position of the cut section 80. [Explanation of symbols]

[0031] 10 packaging bags 20 Transdermal absorption agent 30 Unpacking processing department 31 Starting end 32 Ending End 40 Unpacking processing department 41 Starting end 42 End 50 Intersection Area 60 Packaging materials 61 Base material layer 62 Sealant Layer 64 Bag front side 65 Back of bag 66 Storage area 70 Seal part 71~74 1st seal part ~ 4th seal part 80 Cutting section 81 Spacing 82 Cut row L1~L4 1st row~4th row M1~M4 1st row~4th row 90,91 Skip section

Claims

1. A packaging bag having a rectangular shape in a plan view, the packaging bag having one opening processed part extending in one of the vertical and horizontal directions of the rectangular shape, and another opening processed part extending in the other of the vertical and horizontal directions, Each of the first opening processed portion and the second opening processed portion is formed by providing three or more rows of cuts in which a plurality of cuts are arranged in a row so that the cuts do not overlap each other, A packaging bag characterized in that, in the intersection region between the one opening processing section and the other opening processing section, at least the cut rows located at both ends of the widthwise direction of each cut row of the one opening processing section are skip sections in which the cut sections are not formed for a length that matches the widthwise length of the other opening processing section, and the cut sections of the other opening processing section are formed within these skip sections, and further, the cut section of one of the opening processing sections is formed between the cut section located within one of the skip sections of the other opening processing section and the cut section located within the other skip section.

2. 2. The packaging bag according to claim 1, wherein the cut portion is a linear cut that extends in the direction in which the row of cuts extends.

3. A packaging bag having a rectangular shape in a plan view, the packaging bag having one opening processed part extending in one of the vertical and horizontal directions of the rectangular shape, and another opening processed part extending in the other of the vertical and horizontal directions, Each of the first opening processed portion and the second opening processed portion is formed by providing a plurality of rows of cuts in which a plurality of cuts are arranged in a row so that the cuts do not overlap each other, The row of cuts has, between the plurality of linearly extending cut portions, intervals in which no cut portion of the row of cuts is formed, A packaging bag characterized in that, in the intersection area between the one opening processing section and the other opening processing section, each cut portion of the one opening processing section is located at each interval of the other opening processing section, and each cut portion of the other opening processing section is located at each interval of the one opening processing section.

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