Tape, zipper tape, container with tape and manufacturing method thereof

Abstract

To provide a tape that can make the shape of a top after opening a different level, regardless of a direction actuated by a tearing force.SOLUTION: A tape 120 includes in a cross-sectional shape a first part 120A and a second part 120B that partly oppose each other. In the first part, a thick part is formed in the first and a third region, of the first region R1, the second region R2, and a third region R3 in the width direction of the tape. In both ends in the width direction of the second region situated between the first region and the third region, there are formed a first thin part and a second thin part, with at least one intermediate part 124 formed between the first thin part and the second thin part. In the second part, there are formed in the first and the third region a thick part which extends beyond the end in the width direction of the second region. In the second region, a tape is provided in which a single third thin part opposing the intermediate part is formed.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a tape, a zipper tape, a container with tape, and a method for producing the same. [Background technology]

[0002] As a packaging material for packaging various items such as food, medicine, medical supplies, miscellaneous goods, etc., a packaging bag with zipper tape is used, in which a pair of strip-shaped zipper tapes formed of male and female members that interlock with each other are arranged at the opening of the bag, and the interlocking state can be opened and closed freely. Such a packaging bag with zipper tape is sealed by sealing the upper part of the zipper tape, and when opening it, it can be opened by tearing the film of the bag body, starting from notches formed on both sides of the packaging bag.

[0003] As an example of such a technology, Patent Document 1 (e.g., Figure 10) describes a technology that uses thin and thick sections provided at the base of the zipper tape to stably induce the tearing of the film of the bag body. By providing thin sections at different positions on the zipper tape joined to both sides of the bag body, the ends of the zipper tape after the film is torn will be staggered, making it easy to widen the opening by hooking a finger or the like over the end of the zipper tape when removing the contents from the bag body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2011-104334 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the case of the technology described in Patent Document 1 mentioned above, depending on the direction in which the force tearing the bag body acts, the end of the zipper tape after opening may or may not be uneven.

[0006] Therefore, an object of the present invention is to provide a tape, a zipper tape, a container with tape, and a manufacturing method thereof that can more reliably make the shape of the ends uneven after opening regardless of the direction in which the tearing force acts. [Means for solving the problem]

[0007] [1] A tape including in its cross-sectional shape first and second portions configured to be at least partially opposed to each other, wherein in the first portion, thick portions are formed in the first and third regions of the first, second and third regions in the width direction of the tape, first and second thin portions are formed at both ends in the width direction of a second region located between the first and third regions, and at least one intermediate portion is formed between the first thin portion and the second thin portion; and in the second portion, thick portions are formed in the first and third regions each extending beyond the ends in the width direction of the second region, and at least one third thin portion is formed in the second region opposing the intermediate portion. [2] The tape according to [1], wherein the middle portion is formed with a thickness corresponding to the thick portion. [3] The tape described in [1] or [2], wherein the first thin portion, the second thin portion and the third thin portion are formed with a thickness of 10 μm or more and 200 μm or less, and the thick portions of the first and third regions are formed with a thickness of 200 μm or more and 700 μm or less. [4] A tape described in any one of [1] to [3], wherein the first, second and third regions cover the entire tape. [5] A tape described in any one of [1] to [4], wherein the first portion and the second portion are connected at a widthwise end of the first region or the third region opposite the second region. [6] A zipper tape comprising in its cross-sectional shape first and second portions configured to be at least partially opposed to each other, each of the first and second portions including in its cross-sectional shape a base strip and an engaging portion protruding from the base strip and capable of engaging with each other, wherein in the first portion, a thick portion is formed in the first portion among first, second and third regions in the width direction of the zipper tape, and a thick portion continuous with the base strip is formed in the third region, a second region located between the first and third regions is formed at both width direction ends thereof, and first and second thin portions are formed at at least one intermediate portion between the first thin portion and the second thin portion, and wherein in the second portion, each of the first and third regions is formed with a thick portion extending beyond the width direction ends of the second region, and the second region is formed with at least one third thin portion opposing the intermediate portion. [7] The zipper tape according to [6], wherein the intermediate portion is formed to have a thickness corresponding to that of the thick portion. [8] The zipper tape according to [6] or [7], wherein the first thin portion, the second thin portion and the third thin portion are formed to have a thickness of 10 μm or more and 200 μm or less, and the thick portions of the first and third regions are formed to have a thickness of 200 μm or more and 700 μm or less. [9] The zipper tape according to any one of [6] to [8], wherein the first, second and third regions cover the entire area of ​​the zipper tape other than the base strip and the engagement portion.

[10] The zipper tape according to any one of [6] to [9], wherein the first and second portions are connected to each other at a widthwise end of the first region opposite the second region, or at a widthwise end of the base strip opposite the third region.

[11] A container with tape comprising: a container body having at least a first surface and a second surface opposing each other; and a tape according to any one of [1] to [5] or a zipper tape according to any one of [6] to

[10] , in which at least a part of a first portion is joined to the first surface and at least a part of a second portion is joined to the second surface.

[12] A tape-attached container as described in

[11] , in which the thick portion and intermediate portion of the first portion are joined to the first surface, and the thick portion of the second portion is joined to the second surface.

[13] A container with tape according to

[11] or

[12] , wherein the container body is bag-shaped.

[14] A container with tape described in any one of

[11] to

[13] , wherein side seal portions where the first and second surfaces are joined are formed on both ends of the container body, and a notch is formed in the longitudinal end portion of the tape or zipper tape that overlaps the side seal portions.

[15] A tape-attached container as described in

[14] , wherein the cutout formed in the first portion includes a tapered portion or a bulge portion directed toward the first thin-walled portion and the second thin-walled portion, and the cutout formed in the second portion includes a tapered portion or a bulge portion directed toward the third thin-walled portion.

[16] The cutout formed in the first portion includes a first bulge portion and a second bulge portion directed toward the first thin-walled portion and the second thin-walled portion, respectively; The tape-attached container described in

[15] , wherein the notch formed in the second portion includes a tapered portion directed toward the third thin-walled portion.

[17] A container with tape according to

[16] , wherein the first bulge protrudes more toward the longitudinal center of the tape or zipper tape than the second bulge.

[18] The cutout formed in the first portion includes a first tapered portion and a second tapered portion directed toward the first thinned portion and the second thinned portion, respectively; The tape-attached container described in

[15] , wherein the notch formed in the second portion includes a tapered portion directed toward the third thin-walled portion.

[19] A tape-attached container as described in

[14] , wherein the cutout formed in the first portion includes a first tapered portion directed toward the first thin portion and at least one oblique side or curved portion toward the first tapered portion, and the cutout formed in the second portion includes a tapered portion or bulge directed toward the third thin portion, and the at least one oblique side or curved portion traverses the third thin portion when the first portion and the second portion are superimposed.

[20] A container with tape described in any one of

[15] to

[19] , wherein, in the longitudinal direction of the zipper tape, a first position where the tapered portion or the bulge portion is connected to the first thin portion in the first portion is different from a second position where the tapered portion or the bulge portion is connected to the third thin portion in the second portion.

[21] The container with tape according to

[20] , wherein the second position is closer to a longitudinal end of the zipper tape than the first position.

[22] The tape-attached container described in

[21] , wherein the distance between the first position and the second position is 2 mm or more and 50 mm or less.

[23] A method for manufacturing a container with tape described in any one of

[14] to

[22] , comprising the steps of forming a cutout in the tape or zipper tape, joining the tape or zipper tape with the cutout formed therein to a container body, and forming a side seal portion that crosses the cutout in the container body to which the tape or zipper tape is joined.

[0008] According to the above configuration, after the tape or zipper tape is attached to the bag body, regardless of whether a force is applied from the first side or the second side, the thin-walled portion formed on the side where the force is applied is positioned in the storage space, and therefore, the shape of the end after opening can be made uneven more reliably regardless of the direction in which the tearing force is applied. [Brief description of the drawings]

[0009] [Figure 1] 1 is a plan view of a tape-attached bag according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Figure 3A] 2 is a diagram showing a case where a force is applied from the first surface side in the example of FIG. 1. FIG. [Figure 3B] 2 is a diagram showing a case where a force is applied from the second surface side in the example of FIG. 1. FIG. [Figure 4] 5A to 5C are diagrams illustrating an example of a method for producing the tape in the first embodiment of the present invention. [Figure 5A]5A to 5C are diagrams showing examples of the shape of a notch in the example shown in FIG. 4. [Figure 5B] 5A to 5C are diagrams showing examples of the shape of a notch in the example shown in FIG. 4. [Figure 6] 1 is a cross-sectional view showing an example of a tape according to a first embodiment of the present invention. [Figure 7] FIG. 4 is a cross-sectional view showing a modified example of the first embodiment. [Figure 8] FIG. 4 is a cross-sectional view showing a modified example of the first embodiment. [Figure 9] FIG. 4 is a cross-sectional view showing another modified example of the first embodiment. [Figure 10] FIG. 11 is a plan view of a bag with a zipper tape according to a second embodiment of the present invention. [Figure 11] 11 is a cross-sectional view taken along line XI-XI of FIG. 10. [Figure 12] FIG. 4 is a cross-sectional view showing an example of a zipper tape according to a second embodiment of the present invention. [Figure 13] FIG. 11 is a cross-sectional view showing another modified example of the second embodiment. [Figure 14] 11A and 11B are diagrams illustrating another example of a notch in the embodiment of the present invention. [Figure 15] 11A and 11B are diagrams illustrating another example of a notch in the embodiment of the present invention. [Figure 16] 11A and 11B are diagrams illustrating another example of a notch in the embodiment of the present invention. [Figure 17] 11A and 11B are diagrams illustrating another example of a notch in the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and the drawings, components having substantially the same functional configurations are designated by the same reference numerals, and redundant description will be omitted.

[0011] (First embodiment) Fig. 1 is a plan view of a tape-attached bag according to a first embodiment of the present invention, and Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1. As shown in the figure, the tape-attached bag 100 includes a bag body 110 formed of a film and having a first surface 111A and a second surface 111B facing each other, and a tape 120 joined to the first surface 111A and the second surface 111B of the bag body 110, respectively, to define one side of a storage space SP formed between the first surface 111A and the second surface 111B.

[0012] The bag body 110 is formed, for example, of a single-layer or multi-layer thermoplastic resin film. Specifically, the thermoplastic resin may be low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), or polypropylene (PP). PP may be homopolypropylene (HPP), random polypropylene (RPP), or block polypropylene (BPP). When the bag body 110 is formed of a multi-layer film, biaxially oriented polypropylene (OPP), biaxially oriented polyethylene terephthalate (OPET), or biaxially oriented nylon (ONy) may be used for the surface substrate. These are not limited to resins derived from fossil fuels, and may be environmentally friendly bioplastics, or a mixture of fossil fuel-derived resins and bioplastics. As a bioplastic, for example, biopolyethylene is preferable. In addition, the film forming the bag body 110 may include a layer of a metal material such as aluminum, or an inorganic material. For example, by making the bag body 110 into a mono-material of a resin composition mainly composed of polyethylene, like the tape 120 or zipper tape 220 described later, an environmentally friendly configuration with excellent recyclability can be achieved.

[0013] In this embodiment, the bag body 110 is formed by overlapping two films and joining them to each other at the top seal portion 112, the bottom seal portion 113, and the side seal portion 114. In another embodiment, the bag body 110 may be formed by folding back one film at a portion corresponding to the side seal portion 114. In addition, the bag body 110 may have a portion where the film is folded inward at a portion corresponding to the bottom seal portion 113 or the side seal portion 114, that is, a so-called gusset. In this case, the gusset may be formed of the same film as the first surface 111A or the second surface 111B, or may be formed of a film different from these. In addition, the tape-attached bag 100 may be a standing pouch that can be placed upright by forming a gusset at the bottom.

[0014] 2, the tape 120 is an elongated member including a first portion 120A and a second portion 120B facing each other in a cross-sectional shape. The first portion 120A includes a first thick portion 121A, a second thick portion 122A, thin portions 123A and 123B, and an intermediate portion 124 in a cross-sectional shape. The second portion 120B includes a first thick portion 121B, a second thick portion 122B, and a thin portion 123C in a cross-sectional shape. The first thick portions 121A, 121B and the second thick portions 122A, 122B do not necessarily have to be the same thickness, but the thin portions 123A, 123B, 123C (hereinafter sometimes collectively referred to as the thin portions 123) are formed thinner than both the first thick portions 121A, 121B and the second thick portions 122A, 122B (hereinafter sometimes collectively referred to as the thick portions 121, 122). The middle portion 124 is formed thicker than the thin portions 123A, 123B. The thickness relationship between the middle portion 124 and the thick portions 121A, 122A is not necessarily limited, but for example, when the middle portion 124 is joined to the first surface 111A together with the thick portions 121A, 122A as in the illustrated example, it is preferable that the middle portion 124 is formed with a thickness corresponding to the thick portions 121A, 122A. Here, the corresponding thicknesses do not necessarily have to be exactly the same, but mean a thickness close enough to easily bond the thick parts 121A, 122A and the middle part 124 to the same surface (first surface 111A) as in the illustrated example. Specifically, the thickness of the middle part 124 is preferably within ±20% of the thickness of the thick parts 121A, 122A, more preferably within ±10%, and even more preferably the same thickness. In addition, when the thicknesses of the thick parts 121A, 122A are different, it is preferable that the thickness of the middle part 124 is within the above range with respect to the average value of these thicknesses. By setting the thickness of the middle part 124 to the above range, the middle part 124 can be more reliably bonded to the first surface 111A. The same applies to the middle part formed in the second part 120B in the example described later.

[0015] The first portion 120A is joined to the first surface 111A of the bag body 110 at the first thick portion 121A and the second thick portion 122A. The second portion 120B is also joined to the second surface 111B of the bag body 110 at the first thick portion 121B and the second thick portion 122B. In the illustrated example, the first portion 120A is also joined to the first surface 111A at the intermediate portion 124, but the intermediate portion 124 does not have to be joined to the first surface 111A. From the viewpoint of facilitating alignment during manufacturing, it is more advantageous to join the intermediate portion 124 to the first surface 111A. Moreover, first thick portions 121A, 121B and second thick portions 122A, 122B may not be joined to first surface 111A or second surface 111B over the entire surface, and may not be joined to first surface 111A or second surface 111B in the portions adjacent to thin portions 123A, 123B, 123C. In this case, a portion having a thickness intermediate between thick portions 121, 122 and thin portion 123 may be provided between thick portions 121, 122 and thin portion 123.

[0016] The tape 120 as described above is formed by extrusion molding of, for example, a polyolefin resin. More specifically, the tape 120 may be formed of low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or polypropylene (PP). PP may be homopolypropylene (HPP), random polypropylene (RPP), or block polypropylene (BPP). These are not limited to resins derived from fossil fuels, and may be environmentally friendly bioplastics, or a mixture of fossil fuel-derived resins and bioplastics. As a bioplastic, for example, biopolyethylene is preferable. The material of the tape 120 may be added with known additives, such as stabilizers, antioxidants, lubricants, antistatic agents, or colorants, as necessary.

[0017] The tape 120 may be mono-materialized with a resin composition mainly composed of polyethylene. In this case, the entire tape 120, i.e., the first thick portions 121A and 121B, the second thick portions 122A and 122B, the thin portions 123A, 123B, and 123C, and the middle portion 124, are all formed with a resin composition mainly composed of polyethylene. Here, the main component is a component that occupies a predetermined ratio or more of the resin composition, and is usually a component whose content is 50% by mass or more, preferably 70% by mass or more, more preferably 90% by mass or more, even more preferably 95% by mass or more, particularly preferably 98% by mass or more, and most preferably 100%. However, even if the content of the main component is 100%, the mixture of additives and impurities is permitted. The main component can be confirmed, for example, by an IR method. By mono-materializing the tape 120 with a resin composition mainly composed of polyethylene, an environmentally friendly configuration with excellent recyclability is possible. Furthermore, by using bio-polyethylene as the polyethylene, an environmentally friendly structure with excellent recyclability can be achieved.

[0018] Here, as shown in FIG. 2, a first region R1, a second region R2, and a third region R3 are defined in the width direction of the tape 120. These regions are common to the first portion 120A and the second portion 120B of the tape 120 when the first portion 120A and the second portion 120B face each other. The second region R2 is located between the first region R1 and the third region R3. The first region R1, the second region R2, and the third region R3 may cover the entire tape 120 in the width direction as in the example shown in FIG. 2, or may not cover the entire tape 120 as in another example described later. In the first portion 120A, the first thick portion 121A and the second thick portion 122A are formed in the first region R1 and the third region R3, respectively, the thin portion 123A and the thin portion 123B are formed at both ends in the width direction of the second region R2, respectively, and the intermediate portion 124 is formed between the thin portion 123A and the thin portion 123B. On the other hand, in the second portion 120B, the first thick portion 121B and the second thick portion 122B formed in the first region R1 and the third region R3, respectively, extend beyond the ends in the width direction of the second region R2. That is, in the second portion 120B, the first thick portion 121B and the second thick portion 122B are formed across a part of the second region R2 from the first region R1 or the third region R3, respectively. The thin portion 123C formed in the second region R2 of the second portion 120B faces the middle portion 124 of the first portion 120A.

[0019] As described above, in this embodiment, in the first portion 120A, the thin portion 123A and the thin portion 123B are formed at both ends in the width direction of the second region R2, whereas in the second portion 120B, the first thick portion 121B and the second thick portion 122B extend beyond the ends in the width direction of the second region R2, so that the thin portions 123A and 123B do not face the thin portions of the second portion 120B. The thin portion 123C formed in the second portion 120B does not face between the thin portions 123A and 123B of the first portion 120A, but faces the intermediate portion 124 formed between the thin portions. As a result, when the first portion 120A and the second portion 120B face each other, the thin-walled portions 123A to 123C are arranged alternately in the width direction of the tape 120, specifically, from the top seal portion 112 side, in the order of thin-walled portion 123A, thin-walled portion 123C, and thin-walled portion 123B, without overlapping.

[0020] With the above-mentioned configuration, in the tape-attached bag 100 according to this embodiment, for example, when a user tears and opens the bag body 110 starting from the notch 115 formed in the side seal portion 114 at the longitudinal end of the tape 120, the ends of the tape 120 and the bag body 110 after opening can be made uneven. Specifically, for example, when a force F that tears the bag body 110 acts from the first surface 111A side as shown in Fig. 3A, the thin portion 123A breaks at the first portion 120A of the tape 120, the thin portion 123C breaks at the second portion 120B, and the tearing of the bag body 110 is guided along the thin portions 123A and 123C, so that the ends of the tape 120 and the bag body 110 after opening become uneven. As shown in FIG. 3B, even when force F acting to tear bag body 110 acts from the second surface 111B side, thin portion 123C breaks at second portion 120B of tape 120, and thin portion 123B breaks at first portion 120A, and the tearing of bag body 110 is guided along thin portions 123B and 123C, resulting in uneven edges of tape 120 and bag body 110 after opening.

[0021] According to the findings of the inventors, when a thin-walled portion formed on the opposite side to the side on which the force F that tears the bag body 110 acts (the first surface 111A side in the example of Figure 3A, and the second surface 111B side in the example of Figure 3B) is located on the storage space SP side, the end of the tape 120 after breaking is likely to become uneven. Therefore, for example, in the above example, if thin portion 123B is not formed in first portion 120A of tape 120, when force F is applied from first surface 111A as in the example shown in Figure 3A, thin portion 123A and thin portion 123C will break, resulting in an uneven end of tape 120 after opening. However, when force F is applied from second surface 111B as in the example shown in Figure 3B, since thin portion 123A is located closer to top seal portion 112 than thin portion 123C, first portion 120A will break near middle portion 124 (note that if thin portion 123B is not formed, it is not called a middle portion) rather than thin portion 123A, and the ends of tape 120 and bag body 110 after opening may not be uneven.

[0022] In contrast, in this embodiment, as described above, whether a force is applied from the first surface 111A side or the second surface 111B side, the thin-walled portion formed on the side where the force is applied is located on the storage space SP side, and therefore, regardless of the direction in which the force is applied, the ends of the tape 120 and the bag body 110 after opening can be made uneven with more certainty. This makes it easier to widen the opening by hooking a finger or the like on the end of the tape when removing the contents from the bag body, as described above. At this time, in order to make it even easier to widen the opening, a rib facing the inside of the bag body may be formed on the end of each part other than the thin-walled part (thick part or middle part).

[0023] In this embodiment, the thin-walled parts 123A, 123B, and 123C may be thinner than the adjacent parts, i.e., the thick-walled parts 121 and 122 and the intermediate part 124, but may be formed with a thickness of, for example, 200 μm or less so that they are easily broken by the above force. The thickness of the thin-walled parts 123A, 123B, and 123C is preferably 150 μm or less, more preferably 120 μm or less, even more preferably 100 μm or less, and particularly preferably 80 μm or less. By setting the thickness within such a range, the tensile strength can be reduced, and the thin-walled parts can be broken more easily. The lower limit of the thickness of the thin-walled parts 123A, 123B, and 123C is not particularly limited, but is usually 10 μm.

[0024] On the other hand, the dimension of the thin parts 123A, 123B, 123C in the width direction of the tape 120 is usually 10 μm or more, and preferably 30 μm or more. The upper limit is usually 3 mm, and preferably 1 mm or less. By setting it in this range, the ease of opening is improved by interaction with the R (radius of curvature) formed in the cutout 131 in the example described later.

[0025] For example, when the tape 120 is formed by extrusion molding, a transitional portion of thickness is formed between the thick portions 121, 122 or the intermediate portion 124 and the thin portions 123A, 123B, 123C. In this case, the thin portions 123A, 123B, 123C are specified as portions formed thinner than the thinner of the thick portions 121, 122 or the intermediate portion 124 on both sides. Therefore, when the thicknesses of the thick portions 121, 122 and the intermediate portion 124 on both sides are different, there may be a portion (transitional portion of thickness) between the thick portion and the thin portions 123A, 123B, 123C that is neither a thick portion, an intermediate portion, nor a thin portion. In addition, when the thicknesses of the thin portions 123A, 123B, 123C are specifically specified as described above, the thin portions 123A, 123B, 123C are specified as portions that satisfy the thickness specification. In this case, there may be a portion (thickness transition portion) between the thick portions 121, 122 and the intermediate portion 124 that is neither a thick portion, an intermediate portion, nor a thin portion.

[0026] On the other hand, the thick parts 121, 122 may be thicker than the adjacent thin parts 123A, 123B, 123C, but the thickness is preferably 200 μm or more, more preferably 250 μm or more, and even more preferably 300 μm or more. By making the thickness of the thick parts 121, 122 200 μm or more, the tensile strength is increased, and the thick parts 121, 122 can be prevented from breaking due to the force at the time of opening. In addition, the upper limit of the thickness of the thick parts 121, 122 is not particularly limited, but is usually 700 μm. By making the thickness of the thick parts 121, 122 700 μm or less, the occurrence of pinholes due to melt flattening can be prevented.

[0027] As described above, the bag body 110 is formed by overlapping two films or folding back one film, but when overlapping two films, the direction in which the crystals are oriented between the film forming the first surface 111A and the film forming the second surface 111B can be adjusted to induce the tearing of the bag body 110 starting from the notch 115 to be in different directions on the first surface 111A side and the second surface 111B side, making it easier for the end of the bag body 110 to be uneven after opening. Similarly, when folding back one film, the end of the bag body 110 can be easily made uneven after opening by adjusting the fold between the first surface 111A and the second surface 111B to be non-parallel and non-perpendicular to the direction in which the crystals of the film are oriented.

[0028] FIG. 4 is a diagram for explaining an example of a method for manufacturing a tape in the first embodiment of the present invention. As shown in FIG. 1, in the tape-attached bag 100 according to this embodiment, a notch 131 that overlaps with the side seal portion 114 is formed at the longitudinal end of the tape 120. This notch 131 is formed when the tape-attached bag 100 is continuously manufactured using a bag-making machine, for example, as shown in FIG. 4. Specifically, the notches 131 (openings at this point) are formed in the long tape 120 at the same interval as the width of the bag body 110 after manufacturing, that is, the interval of the side seal portion 114. Thereafter, the tape 120 is joined to the bag body 110, and further the side seal portion 114, the top seal portion 112, and the bottom seal portion 113 that cross the notch 131 are formed. The bag body 110 to which the tape 120 is joined is cut at the center of the side seal portion 114 to obtain the tape-attached bag 100 as shown in FIG. 1.

[0029] For example, when a user tries to tear the bag body 110 starting from the notch 115 formed in the side seal portion 114 at the longitudinal end of the tape 120, the notch 131 thus formed guides the tearing of the bag body 110 starting from the notch 115 to proceed along the thin portion formed in the tape 120. Specifically, for example, as shown in FIG. 5A, the notch 131A may be formed on the first portion 120A side of the tape 120 in a shape including a bifurcated tapered portion 132A each directed toward the thin portions 123A and 123B. Also, as shown in FIG. 5B, the notch 131B may be formed on the second portion 120B side of the tape 120 in a shape including a single tapered portion 132B directed toward the thin portion 123C. In this way, by forming the notch 131 in a shape that matches the position of the thin-walled portion formed in each of the first portion 120A and the second portion 120B of the tape 120, the effect of making the ends of the tape 120 and the bag body 110 uneven after opening can be more easily and reliably obtained as described above. In addition, it is preferable to give R (radius of curvature) to the tip of the tapered portion. By giving R, even if there is some deviation in the position of the tip of the acute angle during processing, it is possible to guide the tear to the thin-walled portion, and the number of manufacturing defects can be reduced. R is, for example, 0.1 mm to 1.0 mm, and preferably 0.2 mm to 0.7 mm.

[0030] FIG. 6 is a cross-sectional view showing an example of the tape according to the first embodiment of the present invention. The tape 120 attached to the bag body 110 in the example described above with reference to FIG. 1 and FIG. 2 is supplied independently before being attached to the bag body 110. In this case, the first portion 120A and the second portion 120B may be supplied in a state in which they are connected at any position. For example, as shown in the figure, the first portion 120A and the second portion 120B may be supplied in a state in which the width direction end portion opposite the second region R2 of the third region R3 shown in FIG. 2, i.e., the second thick portions 122A and 122B, are connected. Alternatively, the first portion 120A and the second portion 120B may be supplied in a state in which they are connected at the width direction end portion opposite the second region R2 of the first region R1 shown in FIG. 2, i.e., the first thick portions 121A and 121B. In this case as well, it is possible to make the first portion 120A and the second portion 120B of the tape 120 face each other by cutting off or folding the connecting portion. In other words, the tape 120 according to this embodiment does not necessarily need to have the first portion 120A and the second portion 120B facing each other when it is supplied, as long as it is configured so that the first portion 120A and the second portion 120B can be made to face each other.

[0031] In the above example, the connecting portion between the first portion 120A and the second portion 120B of the tape 120 is finally cut off, but the process of cutting off the connecting portion may be performed before the tape 120 is attached to the bag body 110, or may be performed after the tape 120 is attached to the bag body 110. In the latter case, when the tape 120 is attached to the bag body 110, the tape 120 is folded at the connecting portion so that the first portion 120A and the second portion 120B face each other. In this case, the first portion 120A and the second portion 120B can be made to face each other in a state where their positional relationship is fixed. For example, by maintaining the first portion 120A and the second portion 120B in a connected state until the above-mentioned notch 131 is formed, it is possible to reduce the positional deviation of the notch 131 between the first portion 120A and the second portion 120B.

[0032] 7 and 8 are cross-sectional views showing modified examples of the first embodiment. In the example described above with reference to FIG. 2 and the like, in the tape 120, the first thick portion 121A and the second thick portion 122A are formed in the first region R1 and the third region R3, respectively, in the first portion 120A, the thin portions 123A and 123B are formed at both ends of the second region R2, respectively, and the intermediate portion 124 is formed between the thin portions 123A and 123B. In addition, in the second portion 120B, the first thick portion 121B and the second thick portion 122B formed in the first region R1 and the third region R3, respectively, extend beyond the ends of the second region R2, and the thin portion 123C facing the intermediate portion 124 of the first portion 120A is formed.

[0033] In contrast, in the example of FIG. 7, the first portion 120A has the first thick portion 121A and the second thick portion 122A formed in the first region R1 and the third region R3, respectively, and the thin portions 123A and 123B are formed at both ends of the second region R2. However, in the example of FIG. 7, two intermediate portions 124A and 124B are formed between the thin portions 123A and 123B, and another thin portion 123D is formed between the intermediate portions 124A and 124B. On the other hand, in the example of FIG. 7, the second portion 120B has the first thick portion 121B and the second thick portion 122B formed in the first region R1 and the third region R3, respectively, extending beyond the ends of the second region R2. However, in the example of FIG. 7, two thin portions 123C and 123E are formed in the portions other than both ends of the second region R2. The thin portions 123C and 123E face the middle portions 124A and 124B of the first portion 120A, respectively. That is, in this embodiment, the number of thin portions of the second portion 120B facing the middle portion of the first portion 120A is not limited to one, and may be multiple. In this case as well, the thin portion formed in the first portion 120A and the thin portion formed in the second portion 120B do not face each other, so that the end of the tape 120 after opening can be made uneven regardless of the direction in which the force acts, as in the example of FIG. 2.

[0034] On the other hand, in the example of FIG. 8, the first portion 120A has the first thick portion 121A and the second thick portion 122A formed in the first region R1 and the third region R3, respectively, and the thin portions 123A and 123B are formed at both ends of the second region R2. However, in the example of FIG. 8, two intermediate portions 124A and 124B are formed between the thin portions 123A and 123B, and another thin portion 123D is formed between the intermediate portions 124A and 124B. The difference from the example of FIG. 7 is that in the example of FIG. 8, the thin portion 123D is not formed in the middle between the thin portions 123A and 123B, but is formed at a position biased toward the thin portion 123B. Therefore, the width of the intermediate portion 124A is wider than that of the intermediate portion 125B. On the other hand, in the example of Fig. 8, second portion 120B is formed in the same manner as in the example of Fig. 2, and includes first thick portion 121B, second thick portion 122B, and thin portion 123C. Thin portion 123C faces middle portion 124A of first portion 120A. In this case as well, the thin portion formed in first portion 120A and the thin portion formed in second portion 120B do not face each other, so that the end of tape 120 after opening can be made uneven regardless of the direction of force acting, as in the example of Fig. 2.

[0035] Fig. 9 is a cross-sectional view showing another modified example of the first embodiment. In the example shown in Fig. 9, the first region R1, the second region R2, and the third region R3 defined in the width direction of the tape 120 do not cover the entire tape 120. In the illustrated example, thin portions 127A and 127B are formed at the end of the tape 120 on the thick portions 121A and 121B side, and thin portions 127C and 127D are formed at the end of the tape 120 on the thick portions 122A and 122B side. These thin portions 127 are different from the above-mentioned thin portions 123 and are not intended to break when the bag with tape 100 is opened. Specifically, for example, the thin-walled portion 127 may be formed thicker than the thin-walled portion 123. Alternatively, even if the thin-walled portion 127 and the thin-walled portion 123 are formed to be equally thin, if the tapered portion of the notch 131 described above with reference to Figs. 5A and 5B faces the thin-walled portion 123 and not the thin-walled portion 127, the thin-walled portion 127 will not break when the tape-attached bag 100 is opened. In such a case, the first region R1 is defined as the region in which the thick-walled portion 121A and the thick-walled portion 121B are formed (excluding the thin-walled portions 127A and 127B). Similarly, the third region R3 is defined as the region in which the thick-walled portion 122A and the thick-walled portion 122B are formed (excluding the thin-walled portions 127C and 127D). In the illustrated example, thin portions 127A-127D and the regions on the widthwise end sides of tape 120 therebetween are not included in first region R1, second region R2, or third region R3.

[0036] Second Embodiment Fig. 10 is a plan view of a bag with a zipper tape according to a second embodiment of the present invention, and Fig. 11 is a cross-sectional view taken along line XI-XI in Fig. 10. As shown in the figure, the bag with zipper tape 200 includes a bag body 110 similar to that of the above-described first embodiment, and zipper tapes 220 respectively joined to a first surface 111A and a second surface 111B of the bag body 110 to define one side of a storage space SP formed between the first surface 111A and the second surface 111B.

[0037] As shown in Fig. 11, the zipper tape 220 is an elongated member including a first portion 220A and a second portion 220B facing each other in a cross-sectional shape. The first portion 220A and the second portion 220B each include a first thick portion 121A, 121B, a second thick portion 122A, 122B, a thin portion 123A, 123B, 123C, and an intermediate portion 124 similar to those in the first embodiment, and base strips 225A, 225B and engaging portions 226A, 226B constituting a zipper portion in a cross-sectional shape. The base strips 225A, 225B are joined to the first surface 111A and the second surface 111B of the bag body 110, respectively, and face each other, and the engaging portions 226A, 226B protrude from the base strips 225A, 225B, respectively, and are engageable with each other.

[0038] In this embodiment, the second thickened portions 122A, 122B of the zipper tape 220 are continuous with the base strips 225A, 225B, respectively. The first region R1, the second region R2, and the third region R3 in the width direction of the zipper tape 220 are defined such that the third region R3 is adjacent to the zipper region including the base strips 225A, 225B, and the second region R2 is located between the first region R1 and the third region R3. The first region R1, the second region R2, and the third region R3 may cover the entire region of the zipper tape 220 in the width direction except for the base strips 225A, 225B and the engagement portions 226A, 226B as in the example shown in FIG. 11, or may not cover the region as in another example described later. In the illustrated example, the second thickened portions 122A, 122B are formed thicker than the base strips 225A, 225B, but in other examples, the second thickened portions 122A, 122B and the base strips 225A, 225B may have the same thickness. The shape of the engagement portions 226A, 226B is not limited to the illustrated example, and can be any known shape of the engagement portion of a zipper that combines a claw shape, a hook shape, or a knob shape. In the illustrated example, the engagement portion 226A is male and the engagement portion 226B is female, but the opposite is also possible. In the illustrated example, one pair of engagement portions is arranged, but multiple pairs of engagement portions may be arranged. The zipper tape 220 is formed by extrusion molding of, for example, a polyolefin resin, similar to the tape 120 of the first embodiment, and known additives such as a stabilizer, an antioxidant, a lubricant, an antistatic agent, or a colorant may be added to the material as necessary. The material of the zipper tape 220 is not limited to resin derived from fossil fuels, but may be environmentally friendly bioplastic, or a mixture of fossil fuel-derived resin and bioplastic. As the bioplastic, for example, biopolyethylene is preferable.

[0039] Furthermore, the zipper tape 220 may be made of a mono-material with a resin composition mainly composed of polyethylene, similar to the above-mentioned tape 120. In this case, the entire zipper tape 220 is formed of a resin composition mainly composed of polyethylene. By making the zipper tape 220 of a mono-material with a resin composition mainly composed of polyethylene, an environmentally friendly structure with excellent recyclability can be achieved. Furthermore, by using bio-polyethylene as the polyethylene, an environmentally friendly structure with even excellent recyclability can be achieved.

[0040] Here, in this embodiment, as shown in FIG. 11, a first region R1, a second region R2, and a third region R3 are defined in the width direction of the zipper tape 220. These regions are common to the first portion 220A and the second portion 220B of the zipper tape 220 when the first portion 220A and the second portion 220B face each other. The second region R2 is located between the first region R1 and the third region R3. In the first portion 220A, the first thick portion 121A and the second thick portion 122A are formed in the first region R1 and the third region R3, respectively, the thin portion 123A and the thin portion 123B are formed at both ends in the width direction of the second region R2, respectively, and the intermediate portion 124 is formed between the thin portion 123A and the thin portion 123B. On the other hand, in the second portion 220B, the first thick portion 121B and the second thick portion 122B formed in the first region R1 and the third region R3, respectively, extend beyond the end of the second region R2 in the width direction. That is, in the second portion 220B, the first thick portion 121B and the second thick portion 122B are formed across a part of the second region R2 from the first region R1 or the third region R3, respectively. The thin portion 123C formed in the second region R2 of the second portion 220B faces the middle portion 124 of the first portion 220A. As a result, in the zipper tape bag 200 of this embodiment, like the tape bag 100 of the first embodiment, when a user tears and opens the bag body 110 starting from the notch 115 formed in the side seal portion 114 at the longitudinal end of the tape 120, the ends of the zipper tape 220 and the bag body 110 after opening can be made uneven.

[0041] FIG. 12 is a cross-sectional view showing an example of a zipper tape according to the second embodiment of the present invention. The zipper tape 220 attached to the bag body 110 in the example described above with reference to FIG. 10 and FIG. 11 is supplied independently before being attached to the bag body 110. The first portion 220A and the second portion 220B may be supplied in a state in which they are connected at any position. For example, in this case, as shown in the figure, the first portion 220A and the second portion 220B may be supplied in a state in which they are connected between the widthwise ends of the base strips 225A, 225B opposite the third region R3. Alternatively, the first portion 220A and the second portion 220B may be supplied in a state in which they are connected between the widthwise ends of the first region R1 opposite the second region R2 shown in FIG. 11, that is, between the first thick portions 121A, 121B. In this case as well, it is possible to make the first portion 220A and the second portion 220B of the zipper tape 220 face each other by cutting off or folding the connecting portion. In other words, the zipper tape 220 according to this embodiment does not necessarily need to make the first portion 220A and the second portion 220B face each other when it is supplied, but it is sufficient that the zipper tape 220 according to this embodiment is configured so that the first portion 220A and the second portion 220B can be made to face each other.

[0042] In the above example, the connecting portion between the first portion 220A and the second portion 220B of the zipper tape 220 is finally cut off, but the process of cutting off the connecting portion and engaging the engaging portions 226A, 226B with each other may be performed before the zipper tape 220 is attached to the bag body 110, or may be performed after the zipper tape 220 is attached to the bag body 110. In the latter case, when the zipper tape 220 is attached to the bag body 110, the zipper tape 220 is folded at the connecting portion so that the first portion 220A and the second portion 220B face each other. In this case, the first portion 220A and the second portion 220B can be made to face each other with their positional relationship fixed. For example, when the notch 131 described above with reference to Figure 4 etc. is also formed in the zipper tape 220, the first portion 220A and the second portion 220B can be maintained connected to each other until the notch 131 is formed, thereby reducing the misalignment of the notch 131 between the first portion 220A and the second portion 220B.

[0043] Fig. 13 is a cross-sectional view showing another modified example of the second embodiment. In the example shown in Fig. 13, the first region R1, the second region R2 and the third region R3 do not cover the whole area of ​​the zipper tape 220 other than the base strips 225A, 225B and the engagement parts 226A, 226B. In the illustrated example, thin parts 127A, 127B are formed at the end of the zipper tape 220 on the thick parts 121A, 121B side, and thin parts 227C, 227D are formed between the thick parts 122A, 122B and the base strips 225A, 225B. Similarly to the thin part 127, the thin part 227 is not intended to break when the bag 200 with the zipper tape is opened. In such a case, the first region R1 is defined as the region where the thick portion 121A and the thick portion 121B are formed (excluding the thin portions 127A and 127B). Similarly, the third region R3 is defined as the region where the thick portion 122A and the thick portion 122B are formed (excluding the thin portions 227C and 227D). In the illustrated example, the thin portions 127A and 127B and the regions on the width direction end side thereof of the zipper tape 220, and the regions between the thin portions 227C and 227D and the base strips 225A and 225B are not included in any of the first region R1, the second region R2, and the third region R3.

[0044] FIG. 14 is a diagram showing another example of a cutout in an embodiment of the present invention. The shape of the cutout shown in FIG. 14 is applicable to, for example, both the first and second embodiments. Specifically, in the example shown in FIG. 14, cutouts 231A and 231B are formed at the longitudinal end of the tape 120 so as to overlap the side seal portion 114 (not shown). The cutout 231A is formed on the side of the first portion 120A of the tape 120, and includes bulging portions 232A and 232B directed toward the thin portions 123A and 123B. On the other hand, the cutout 231B is formed on the side of the second portion 120B of the tape 120, and includes a tapered portion 232C directed toward the thin portion 123C. 5A and 5B, for example, when a user tries to tear the bag body starting from the longitudinal end of tape 120, such cutouts 231A, 231B can guide the tearing of the bag body to proceed along the thin-walled portion formed in tape 120. In another example, as shown in FIG. 15, the middle portions of bulging portions 232A, 232B may have a shape without curvature.

[0045] Here, in this specification, the tapered portion is a portion in which the edges on both sides of the width direction of the notch are straight, and these straight lines form a taper that gradually narrows toward the thin portion. On the other hand, the bulging portion is a portion in which the shape of the notch protrudes toward the thin portion. As shown in the example of FIG. 14, the tip of the tapered portion can be given an R (radius of curvature). As already mentioned, by giving an R to the shape of the notch, even if there is some deviation in the position of the notch during processing, the tear can be guided to the thin portion, and the number of defective products can be reduced. When an R is given to the tip of the tapered portion, the tapered portion and the bulging portion have in common the fact that they include a portion with an R toward the thin portion. If there are straight edges forming a taper on both sides of the portion with an R, it is a tapered portion, and if both sides of the portion with an R are curved edges or are straight but do not form a taper, it is a bulging portion. For example, in the example of FIG. 14 above, the tapered portion 232C may be formed as a bulging portion.

[0046] In the case of the tip of the tapered portion, as in the above-mentioned example, R is, for example, 0.1 mm to 1.0 mm, preferably 0.2 mm to 0.7 mm. In the case of the bulging portion, R is, for example, 0.1 mm to 2.0 mm, preferably 0.1 to 1.5 mm, more preferably 0.1 mm to 1.0 mm, still more preferably 0.2 mm to 0.8 mm, and particularly preferably 0.2 mm to 0.7 mm.

[0047] 14, the first position P1 where the bulging portions 232A, 232B of the notch 231A are connected to the thin portions 123A, 123B is different from the second position P2 where the tapered portion 232C of the notch 231B is connected to the thin portion 123C in the longitudinal direction of the tape 120. More specifically, in the illustrated example, the second position P2 is closer to the longitudinal end of the tape 120 than the first position P1. With this configuration, the timing at which the tapered portion 232C starts tearing the thin portion 123C is shifted from the timing at which the bulging portions 232A, 232B start tearing the thin portions 123A, 123B, and the thin portions on the side where less resistance is applied can be selectively torn out of the thin portions 123A, 123B. 5A and 5B, the position where the bifurcated tapered portion 132A of the cutout 131A is connected to the thin portions 123A and 123B may be different from the position where the tapered portion 132B of the cutout 131B is connected to the thin portion 123C. In the longitudinal direction of the tape 120, the distance between the first position P1 and the second position P2 is preferably 1 mm or more.

[0048] FIG. 16 is a diagram showing yet another example of a cutout in an embodiment of the present invention. The shape of the cutout shown in FIG. 16 can be applied to, for example, either the first or second embodiment. In the example shown in FIG. 16, cutouts 231A and 231B are formed at the longitudinal end of the tape 120 so as to overlap the side seal portion 114 (not shown). As a difference from the example shown in FIG. 14, in the example shown in FIG. 16, of the bulging portions 232A and 232B included in the cutout 231A, the bulging portion 232A bulges out more toward the longitudinal center of the tape 120 than the bulging portion 232B. As a result, the intermediate portion 233 between the bulging portions 232A and 232B has an asymmetric shape in the width direction of the tape 120, unlike the example shown in FIG. 14. Specifically, the intermediate portion 233 is inclined with respect to the width direction of the tape 120 from the bulging portion 232B to the bulging portion 232A. As a result, when first portion 120A and second portion 120B of tape 120 are overlapped, intermediate portion 233 does not intersect at right angles with thin portion 123C of second portion 120B but intersects at an angle. This makes it possible to guide the tear to bulge portion 232A and thin portion 123A continuing from bulge portion 232A not only when the tear in the bag body progresses toward bulge portion 232A as indicated by arrow Q1 in Fig. 16, but also when the tear progresses toward the middle between bulge portions 232A and 232B as indicated by arrow Q2.

[0049] FIG. 17 is also a diagram showing yet another example of a cutout in an embodiment of the present invention. In the example shown in FIG. 17, cutouts 231A and 231B are formed at the longitudinal end of the tape 120 so as to overlap the side seal portion 114 (not shown). As a difference from the example shown in FIG. 14 above, in the example shown in FIG. 17, a tapered portion 232D directed toward the thin portion 123A is formed in the cutout 231A of the first portion 120A of the tape 120, and two oblique sides α and β are formed from the second thick portion 122A side toward the tapered portion 232D. Here, the oblique side means a portion in which the edge on one side of the cutout is inclined with respect to both the longitudinal direction and the width direction of the tape 120. In the example shown in the figure, two oblique sides α and β are formed, but one oblique side or three or more oblique sides may be formed. Alternatively, a curved portion protruding outward may be formed similarly to the bent portion formed by the oblique sides α and β. These oblique sides or curved portions cross the thin portion 123C of the second portion 120B when the first portion 120A and the second portion 120B of the tape 120 are overlapped. As a result, similar to the example of Fig. 16 above, not only when the tear in the bag body progresses toward the tapered portion 232D as shown by the arrow Q1, but also when the tear progresses away from the tapered portion 232D as shown by the arrow Q2, the tear can be guided to the tapered portion 232D and the thin portion 123A continuing to the tapered portion 232D.

[0050] 16 and 17, tearing of the bag body is guided toward thin-walled portion 123A on the side closer to top seal portion 112, but tearing may be guided toward thin-walled portion 123B on the side farther from top seal portion 112. Specifically, in the example of FIG. 16, bulging portion 232B may bulge more toward the center in the longitudinal direction of tape 120 than bulging portion 232A. Also, in the example of FIG. 17, tapered portion 232D may be formed toward thin-walled portion 123B.

[0051] 14 to 17, the first position P1 where the bulge 232A or the tapered portion 232D is connected to the thin portion 123A in the first portion 120A of the tape 120 is different from the second position P2 where the tapered portion 232C or the bulge is connected to the thin portion 123C in the second portion 120B, and the second position P2 is closer to the longitudinal end of the tape 120 than the first position P1. The distance d between the first position P1 and the second position P2 is preferably 2 mm or more, more preferably 4 mm or more, and even more preferably 8 mm or more. The upper limit is preferably 50 mm or less, more preferably 30 mm or less, and even more preferably 20 mm or less.

[0052] The configurations of the thickness and the like of the thick portions 121, 122 and the thin portion 123 described in the first embodiment are also the same in the second embodiment. In addition, all of the modified examples described above for the first embodiment are also applicable to the second embodiment. In the above-described embodiment, the first and second portions of the tape and zipper tape are formed to have approximately the same width and are opposed to each other entirely, but in other embodiments, the width of either the first or second portion of the tape or zipper tape may be wider than the other, so that the first and second portions are partially opposed to each other.

[0053] In addition, although the above describes an example in which the container body is a bag-shaped bag body, a tape or zipper tape may be joined to a container body other than a bag-shaped body to provide a container with tape or a container with zipper tape. In addition, although the above describes an example in which the first thick portion, the second thick portion, the thin portion, and the intermediate portion are formed continuously, for example, when not only the thick portion and the intermediate portion but also the thin portion is joined to the surface of the container body, the thin portion may be separated from the first thick portion, the second thick portion, or the intermediate portion at at least one location, and the tape or zipper tape may be provided as a combination of multiple long members.

[0054] Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to these examples. It is clear that a person skilled in the art in the technical field to which the present invention pertains can come up with various modified or altered examples within the scope of the technical ideas described in the claims, and it is understood that these also naturally fall within the technical scope of the present invention. [Explanation of symbols]

[0055] 100...bag with tape, 110...bag body, 111A...first surface, 111B...second surface, 112...top seal portion, 113...bottom seal portion, 114...side seal portion, 115...notch, 120...tape, 120A...first portion, 120B...second portion, 121A, 121B...first thick portion, 122A, 122B...second thick portion, 123A, 123B, 123C...thin portion, 124...middle portion, 131, 131A, 131B, 231A , 231B...notch, 132A, 132B, 232C, 232D...tapered portion, 200...bag with zipper tape, 220...zipper tape, 220A...first portion, 220B...second portion, 225A, 225B...base strip, 226A, 226B...engagement portion, 232A, 232B...bulge portion, 233...middle portion, R1...first region, R2...second region, R3...third region, SP...storage space, P1...first position, P2...second position.

Claims

1. 1. A tape including in its cross-sectional shape first and second portions configured to be at least partially opposed, In the first portion, thick portions are formed in the first and third regions among first, second and third regions in the width direction of the tape, first and second thin portions are formed at both ends in the width direction of the second region located between the first and third regions, and at least one intermediate portion is formed between the first thin portion and the second thin portion, A tape in which, in the second portion, the first and third regions each have a thick portion extending beyond the widthwise ends of the second region, and the second region has at least one third thin portion opposite the intermediate portion.

2. The tape of claim 1 , wherein the intermediate portion is formed with a thickness corresponding to the thickened portion.

3. the first thin portion, the second thin portion, and the third thin portion are formed to a thickness of 10 μm or more and 200 μm or less; 3. The tape according to claim 1, wherein the thick portions of the first and third regions are formed to a thickness of 200 μm or more and 700 μm or less.

4. The tape of claim 1 , wherein the first, second and third regions cover the entirety of the tape.

5. 5. The tape according to claim 1, wherein the first portion and the second portion are connected at a widthwise end of the first region or the third region opposite the second region.

6. A zipper tape including in its cross-sectional shape first and second portions configured to be at least partially opposed, Each of the first and second portions includes a cross-sectional shape including a base strip and an engagement portion protruding from the base strip and capable of engaging with each other; In the first portion, a thick portion is formed in the first region out of first, second and third regions in the width direction of the zipper tape, a thick portion continuing to the base strip is formed in the third region, first and second thin portions are formed at both ends in the width direction of the second region located between the first and third regions, and at least one intermediate portion is formed between the first thin portion and the second thin portion, In the second portion, the first and third regions are each formed with a thick portion extending beyond an end portion of the second region in the width direction, and the second region is formed with at least one third thin portion facing the intermediate portion.

7. The zipper tape according to claim 6 , wherein the intermediate portion is formed to a thickness corresponding to the thick portion.

8. the first thin portion, the second thin portion, and the third thin portion are formed to a thickness of 10 μm or more and 200 μm or less; 8. The zipper tape according to claim 6, wherein the thick portions of the first and third regions are formed to have a thickness of 200 μm or more and 700 μm or less.

9. The zipper tape according to claim 6 , wherein the first, second and third regions cover the entire area of ​​the zipper tape other than the base strip and the engagement portion.

10. 10. The zipper tape according to claim 6, wherein the first portion and the second portion are connected to each other at a widthwise end of the first region opposite to the second region or at a widthwise end of the base strip opposite to the third region.

11. a container body having at least a first surface and a second surface opposed to each other; The tape according to any one of claims 1 to 5 or the zipper tape according to any one of claims 6 to 10, wherein at least a part of the first portion is joined to the first surface and at least a part of the second portion is joined to the second surface. A taped container comprising:

12. The tape-attached container according to claim 11 , wherein the thick portion and the intermediate portion of the first portion are joined to the first surface, and the thick portion of the second portion is joined to the second surface.

13. The container with tape according to claim 11 or 12, wherein the container body is bag-shaped.

14. a side seal portion where the first surface and the second surface are joined is formed on both ends of the container body; The container with tape according to claim 11 , wherein a notch is formed in a longitudinal end portion of the tape or zipper tape that overlaps with the side seal portion.

15. the cutout formed in the first portion includes a tapered or bulging portion directed toward the first thinned portion and the second thinned portion; 15. The tape-attached container of claim 14, wherein the cutout formed in the second portion includes a tapered or bulging portion directed toward the third thin-walled portion.

16. the cutout formed in the first portion includes a first bulge and a second bulge directed toward the first thin portion and the second thin portion, respectively; 16. The tape-attached container of claim 15, wherein the cutout formed in the second portion includes a tapered portion directed toward the third thinned portion.

17. 17. The container with tape according to claim 16, wherein the first bulge protrudes more toward the center of the tape or zipper tape in the longitudinal direction than the second bulge protrudes.

18. the notch formed in the first portion includes a first tapered portion and a second tapered portion directed toward the first thinned portion and the second thinned portion, respectively; 16. The tape-attached container of claim 15, wherein the cutout formed in the second portion includes a tapered portion directed toward the third thinned portion.

19. the notch formed in the first portion includes a first tapered portion directed toward the first thin portion and at least one oblique side or curved portion directed toward the first tapered portion; the cutout formed in the second portion includes a tapered or bulging portion directed toward the third thin-walled portion; 15. The tape-attached container of claim 14, wherein the at least one oblique side or curved portion crosses the third thin-walled portion when the first portion and the second portion are overlapped.

20. 20. The container with tape according to claim 15, wherein, in the longitudinal direction of the zipper tape, a first position where the tapered portion or the bulge portion is connected to the first thin portion in the first portion is different from a second position where the tapered portion or the bulge portion is connected to the third thin portion in the second portion.

21. 21. The tape-attached container of claim 20, wherein the second location is closer to an end of the zipper tape in a longitudinal direction than the first location.

22. 22. The tape-attached container according to claim 21, wherein the distance between the first position and the second position is equal to or greater than 2 mm and equal to or less than 50 mm.

23. forming the notch in the tape or zipper tape; a step of joining the tape or zipper tape having the notch formed therein to the container body; forming the side seal portion across the notch on the container body to which the tape or zipper tape is joined; A method for producing a container with tape according to any one of claims 14 to 22, comprising:

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