Container with zipper tape, method for manufacturing container with zipper tape, and apparatus for manufacturing container with zipper tape

Abstract

To easily form a steam outlet capable of discharging stable steam.SOLUTION: A container with a zipper tape comprises: a container body having a first face and a second face at least opposite to each other; a first base part bonded with the first face; a first engagement part projected out of a first base part; a second base part bonded with the second face; and a zipper tape including a second engagement part projected out of the second base part and capable of engaging with the first engagement part, wherein a low bonding strength layer so constituted that the bonding strength with the container body may be lower than in another part of the zipper tape is formed at a part of the second base part opposite to the second face, a part other than the low bonding strength layer of the second base part is bonded with the second face in a first bonding region formed alternately with a non-bonding region with respect to a length direction of the zipper tape, and the low bonding strength layer of the second base part is bonded with the second surface in a second bonding region formed continuously in the length direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a container with zipper tape, a method for manufacturing a container with zipper tape, and an apparatus for manufacturing a container with zipper tape. [Background technology]

[0002] Pouch-shaped containers that can store food and the like and that can be used for cooking have been widely used. Patent Document 1 describes a configuration of such a pouch-shaped container that is provided with a water vapor release mechanism that prevents the pouch from bursting due to excessive expansion during cooking. The pouch-shaped container described in Patent Document 1 has a water vapor release mechanism in which a weakened seal portion is formed, the periphery of which is weakened and sealed to the pouch body so as to cover a circular cutout provided near the side seal portion of the pouch body. When the internal pressure of this water vapor release mechanism increases to a certain level due to steam generated during cooking, the weakened seal portion peels off, allowing water vapor to be released through the cutout, preventing the pouch body from bursting due to excessive expansion.

[0003] However, when weakened seals are used in the water vapor release mechanism as described in Patent Document 1, the internal pressure at which water vapor begins to be released varies depending on the bonding strength of the weakened seals. Furthermore, if the bonding strength of the weakened seals is not uniform, partial peeling of the weakened seals may result in a reduced amount of water vapor being released. Patent Document 2 therefore describes a technology for easily forming a steam outlet that can stably release water vapor by providing a low-bonding strength layer in a portion of the zipper tape bonded to the film that constitutes the bag body, bonding the low-bonding strength layer to the film in a portion of the zipper tape in the longitudinal direction, and bonding the non-low-bonding strength layer to the film in other portions. Patent Document 3 describes a technology for forming such a steam outlet in a section that is eccentrically positioned relative to the longitudinal center of the zipper tape. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-46644 [Patent Document 2] International Publication No. 2017 / 119449 [Patent Document 3] Patent Publication No. 2021-024602 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the techniques described in Patent Documents 2 and 3, in order to form a steam outlet at a predetermined position in the length direction of the zipper tape, the deformed part of the seal bar had to be positioned to match the width of the bag body, and a seal bar had to be prepared for each width of the bag body. Also, if the film or zipper tape being fed meanders, a misalignment may occur between the deformed part of the seal bar and the bag body after cutting, and the steam outlet may not be formed at the intended position.

[0006] Therefore, an object of the present invention is to provide a container with zipper tape, a method for manufacturing a container with zipper tape, and an apparatus for manufacturing a container with zipper tape, which are capable of easily forming a steam outlet that can stably release water vapor. [Means for solving the problem]

[0007] [1] A container with zipper tape comprising: a container body having at least a first surface and a second surface opposing each other; and a zipper tape including a first base joined to the first surface, a first engaging portion protruding from the first base, a second base joined to the second surface, and a second engaging portion protruding from the second base and engageable with the first engaging portion, wherein a low-bonding strength layer is formed on a part of the second base facing the second surface so that the bonding strength with the container body is lower than that of other parts of the zipper tape, and the part of the second base other than the low-bonding strength layer is bonded to the second surface by first bonding regions formed alternately with non-bonding regions in the length direction of the zipper tape, and the low-bonding strength layer of the second base is bonded to the second surface by a second bonding region formed continuously in the length direction. [2] The container with zipper tape according to [1], wherein the first bonding area and the second bonding area are spaced apart. [3] The container with zipper tape according to [1] or [2], wherein the lengths of all of the first bonded regions are equal and the lengths of all of the non-bonded regions are also equal in the longitudinal direction. [4] The container with zipper tape according to [3], wherein the length of the first bonded region and the length of the non-bonded region are the same in the longitudinal direction. [5] A container with zipper tape described in any one of [1] to [4], wherein the first bonded region and the non-bonded region form a pattern with a period shorter than the opening width of the container body. [6] A container with a zipper tape according to any one of [1] to [5], wherein the second bonding area is formed in a corrugated shape. [7] A container with zipper tape according to any one of [1] to [6], wherein the peel strength between the low bonding strength layer and the second surface is 5 N / 15 mm or more and 30 N / 15 mm or less. [8] A method for manufacturing a container with zipper tape, the method comprising: a container body having at least a first surface and a second surface opposing each other; and a zipper tape including a first base joined to the first surface, a first engaging portion protruding from the first base, a second base joined to the second surface, and a second engaging portion protruding from the second base and engageable with the first engaging portion, wherein a low bonding strength layer is formed on a part of the second base opposing the second surface so that the bonding strength with the container body is lower than that of other parts of the zipper tape, the method comprising the steps of: forming first bonding regions alternating with non-bonded regions in the longitudinal direction of the zipper tape between the part of the second base other than the low bonding strength layer and the second surface; and forming second bonding regions continuous in the longitudinal direction between the low bonding strength layer of the second base and the second surface. [9] An apparatus for manufacturing a zipper tape-attached container, the apparatus comprising: a container body having at least a first surface and a second surface opposing each other; and a zipper tape including a first base joined to the first surface, a first engaging portion protruding from the first base, a second base joined to the second surface, and a second engaging portion protruding from the second base and engageable with the first engaging portion, wherein a low bonding strength layer is formed on a part of the second base opposing the second surface so that the bonding strength with the container body is lower than that of other parts of the zipper tape. The apparatus for manufacturing a zipper tape-attached container comprises: means for forming first bonding regions alternating with non-bonded regions in the longitudinal direction of the zipper tape between the part of the second base other than the low bonding strength layer and the second surface; and means for forming second bonding regions continuous in the longitudinal direction between the low bonding strength layer of the second base and the second surface. [Effects of the Invention]

[0008] According to the above configuration, when the steam pressure in the storage space increases due to heating of the contents, the second bonded regions are destroyed, and the non-bonded regions between the first bonded regions form multiple steam outlets arranged along the opening of the container body, enabling stable release of water vapor. The first bonded regions and non-bonded regions formed alternately along the length of the zipper tape, and the second bonded regions formed continuously, can be formed without aligning the seal bar with the film and zipper tape during manufacturing, simplifying the process. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a plan view of a bag with a zipper tape according to one embodiment of the present invention. [Figure 2A] 2 is a cross-sectional view of the zipper tape bag shown in FIG. 1 taken along line II-II. [Figure 2B] 2 is a cross-sectional view taken along line II-II of the zipper tape bag shown in FIG. 1 when the contents are heated. FIG. [Figure 3] 3 is a cross-sectional view of the zipper tape bag shown in FIG. 1 taken along line III-III. [Figure 4] 10A to 10C are diagrams for explaining an example of a method for manufacturing a container with a zipper tape according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Fig. 1 is a plan view of a zipper tape-equipped bag according to one embodiment of the present invention. Figs. 2A, 2B, and 3 are cross-sectional views of the zipper tape-equipped bag shown in Fig. 1 taken along lines II-II and III-III. As shown, zipper tape-equipped bag 100 includes a bag-shaped container body formed by film 110 having opposing first and second surfaces 111A and 111B, and zipper tape 120 disposed between first and second surfaces 111A and 111B of film 110. Zipper tape 120 is disposed adjacent to storage space SP formed between first and second surfaces 111A and 111B and in which contents C are stored.

[0011] The film 110 is formed, for example, of a single-layer or multi-layer thermoplastic resin, specifically, for example, 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 film 110 is multi-layered, the surface substrate may be biaxially oriented polypropylene (OPP), biaxially oriented polyethylene terephthalate (OPET), or biaxially oriented nylon (ONy). These thermoplastic resins are not limited to fossil fuel-derived resins; they may be environmentally friendly bioplastics (polyolefin resins such as biopolyethylene and biopolypropylene derived from biomass) or a mixture of fossil fuel-derived resins and bioplastics. The film 110 may also include an inorganic material layer formed by aluminum vapor deposition, lamination of aluminum foil, or the like.

[0012] In this embodiment, first surface 111A and second surface 111B are formed by joining two sheets of film 110 together at bottom seal portion 112 and side seal portion 113. However, in another embodiment, first surface 111A and second surface 111B may be formed by folding back a single sheet of film 110 at a portion corresponding to side seal portion 113. Also, a portion where the film is folded inward, a so-called gusset, may be formed at a portion corresponding to bottom seal portion 112 or side seal portion 113 in the example of FIG. 1. In this case, the gusset may be formed by a portion of the same film 110 as first surface 111A or second surface 111B, or by a different film. Zipper tape bag 100 may be a standing pouch that can be placed upright by forming a gusset at the bottom.

[0013] In the illustrated example, opening 101 is formed in zipper tape bag 100 by forming bottom seal 112 and side seal 113 but not the top seal, but in other examples, a top seal may be formed in addition to bottom seal 112 and side seal 113, and opening 101 may be formed in zipper tape bag 100 later by cutting between the top seal and zipper tape 120. In yet another example, the zipper tape bag may be provided without forming bottom seal 112, i.e., without sealing storage space SP on the side opposite zipper tape 120. In this case, bottom seal 112 is formed after contents are filled into storage space SP.

[0014] The zipper tape 120 is an elongated member having a cross-sectional shape including a first base 121A joined to the first surface 111A, a second base 121B joined to the second surface 111B, and engaging portions 122A, 122B, 122C, and 122D. In the illustrated example, the engaging portions 122A and 122C are first engaging portions that protrude from the first base 121A, and the engaging portions 122B and 122D are second engaging portions that protrude from the second base 121B. The engaging portion 122A is engageable with the engaging portion 122B, and the engaging portion 122C is engageable with the engaging portion 122D. 1, first base 121A and second base 121B are illustrated as base 121, and engaging portions 122A, 122B, 122C, and 122D are illustrated as engaging portions 122. Engaging portions 122 enable zipper tape bag 100 to be sealed, opened, and resealed.

[0015] In the illustrated example, the engaging portion 122A is male, the engaging portion 122B is female, and the engaging portions 122C and 122D are hook-shaped, but the shapes are not limited to the illustrated example, and various known shapes of the engaging portions of zipper tapes, such as a combination of claw shapes, hook shapes, and knob shapes, can be adopted. In the illustrated example, two pairs of engaging portions are shown, but the number of engaging portions may be one pair, or three or more pairs. In the illustrated example, one pair of engaging portions with different shapes (male and female, and hook-shaped) is arranged, but two or more pairs of engaging portions with the same shape (for example, male and female) may be arranged.

[0016] The zipper tape 120 described above is formed of, for example, a polyolefin resin. More specifically, the zipper 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). The polyolefin resin is not limited to resins derived from fossil fuels; it may be environmentally friendly bioplastics (polyolefin resins such as biopolyethylene and biopolypropylene derived from biomass) or a mixture of fossil-fuel-derived resins and bioplastics. Known additives, such as stabilizers, antioxidants, lubricants, antistatic agents, or colorants, may be added to the material of the zipper tape 120 as needed.

[0017] Furthermore, in the zipper tape 120, a low bonding strength layer 123 is formed on a part of the second base portion 121B facing the second surface 111B on the opening 101 side with respect to the engaging portion 122, i.e., on the opposite side of the engaging portion 122 from the storage space SP. The low bonding strength layer 123 is a layer configured so that the bonding strength to the film 110 is lower than that of other parts of the zipper tape 120. Specifically, for example, by forming the other parts of the zipper tape 120 from polypropylene and forming the low bonding strength layer 123 from polyethylene or a mixture of polyethylene and polypropylene (examples include LLDPE, a mixture of LDPE and high density polyethylene (HDPE), or a mixture of LDPE and polypropylene), the bonding strength of the low bonding strength layer 123 to the film 110 can be made lower than the bonding strength between the other parts of the zipper tape 120 and the film 110.

[0018] In the illustrated example, the low bonding strength layer 123 is formed to the same thickness as the second base portion 121B. However, in other examples, it is preferable that the low bonding strength layer 123 is thinner than the second base portion 121B, and that only the second surface 111B side of the second base portion 121B is the low bonding strength layer 123. In this case, it is preferable that a bonding layer is formed between the second base portion 121B and the low bonding strength layer 123. The bonding layer is made of, for example, a resin composition as described below. Alternatively, the low bonding strength layer 123 may be laminated on the second surface 111B side of the second base portion 121B formed to the same thickness as the other portions. The zipper tape 120 including the low bonding strength layer 123 is manufactured, for example, by co-extrusion molding the resin material forming the low bonding strength layer 123 and the resin material forming the other portions. Alternatively, low bonding strength layer 123 may be formed by forming a portion including second base 121B by extrusion molding, and then applying a material resin of low bonding strength layer 123 to a predetermined region on second surface 111B side of second base 121B. In the illustrated example, low bonding strength layer 123 is located only on the opening 101 side relative to the engaging portion, but low bonding strength layer 123 may extend beyond engaging portion 122 to the side opposite opening 101, that is, to the storage space SP side.

[0019] The resin composition forming the low bonding strength layer 123 is different from the resin composition forming the second base 121B. For example, by using a configuration such as that illustrated in Table 1, the bonding strength between the low bonding strength layer 123 and the second surface 111B can be made lower than the bonding strength between the second surface 111B and other portions of the second base 121B. In the example in Table 1, the resin composition forming the second base 121B (simply referred to as the base) is polypropylene, and the resin composition forming the low bonding strength layer 123 is polyethylene. In this example, a bonding layer is formed between the second base 121B and the low bonding strength layer 123 as described above.

[0020] [Table 1]

[0021] Alternatively, the bonding strength between low bonding strength layer 123 and second surface 111B may be made lower than the bonding strength between other parts of second base 121B and second surface 111B by using a combination of resin compositions such as those exemplified in Table 2. In Table 2, Tm means melting point.

[0022] [Table 2]

[0023] The peel strength between the low bonding strength layer formed as described above and second surface 111B is, for example, 5 N / 15 mm or more and 30 N / 15 mm or less, from the viewpoint of fully exhibiting the vapor discharge function described below, and is preferably 10 N / 15 mm or more. The peel strength is preferably 20 N / 15 mm or less. The peel strength here is determined by preparing a test piece by sealing the base of the zipper tape to a film at 230°C and 0.2 MPa for 1 second using a thermal gradient tester, and then converting the maximum tensile force when the base of the test piece is peeled from the film into a value per 15 mm width of the test piece.

[0024] In this embodiment, the zipper tape 120 is bonded to the film 110 of the container body by heat sealing, ultrasonic sealing, or the like in a bonding region. The bonding region includes a first bonding region 141 and a second bonding region 142 formed between the second surface 111B and the second base 121B, and a third bonding region 143 formed between the first surface 111A and the first base 121A. Regarding the bonding region on the second base 121B side, the first bonding region 141 bonds the second surface 111B to the portion of the second base 121B other than the low bonding strength layer 123. As shown in FIG. 1 , the first bonding regions 141 are alternately formed with non-bonded regions in the longitudinal direction of the zipper tape 120. Meanwhile, the second bonding region 142 bonds the low bonding strength layer 123 of the second base 121B to the second surface 111B. 1, the second bonding region 142 is formed continuously in the longitudinal direction of the zipper tape 120. While the first bonding region 141 is formed discontinuously, the second bonding region 142 is formed continuously, thereby sealing the gap between the second base 121B and the second surface 111B. On the other hand, no low bonding strength layer is formed on the first base 121A, and the first base 121A is bonded to the first surface 111A at the third bonding region 143.

[0025] In the zipper tape-attached bag 100 described above, when the content C is heated and the steam pressure in the storage space SP increases, the portion with the lowest bond strength between the second surface 111B and the first surface 111A of the film 110, i.e., the second bonded region 142 where the low bond strength layer 123 and the second surface 111B are bonded, is destroyed as shown in FIG. 2B. When the second bonded region 142 is destroyed, the steam flows toward the first bonded region 141 and is discharged from the opening 101 via the non-bonded region formed between the first bonded regions 141. Note that the destruction of the second bonded region 142 can occur not only in the portion where the first bonded region 141 is not formed as shown in FIG. 2B but also in the portion where the first bonded region 141 is formed as shown in FIG. 3. However, the steam is discharged from the non-bonded region where the first bonded region 141 is not formed as shown in FIG. 2B. In the portion where first bonded region 141 is formed, the bond between second base 121B and second surface 111B is maintained even while steam is being released. In this way, the steam outlet is limited to the non-bonded region between first bonded regions 141, thereby stabilizing the release of steam when the contents are heated. More specifically, it is possible to prevent the shape of the container from being distorted due to the steam outlet being too wide, and to prevent the efficiency of cooking from decreasing due to excessive steam escape.

[0026] Furthermore, in the illustrated example, second base 121B is attached to second surface 111B of film 110 in a so-called one-sided release state. Specifically, second base 121B is joined to second surface 111B of film 110 only on the opening 101 side of engagement portion 122 by first and second joining regions 141 and 142. With this configuration, when the steam pressure in storage space SP increases during heating of the contents, a shear force acts between first base 121A and second base 121B along the width direction of each base, as shown by the arrows in FIG. 2B. This force further strengthens the engagement between one claw of female engagement portion 122B and male engagement portion 122A, and also further strengthens the engagement between hook-shaped engagement portions 122C and 122D, making it difficult for the engagement portions to be disengaged by the action of steam pressure. This also makes it easier for the steam pressure in the storage space SP to act not only on the engaging portion but also between the second base portion 121B and the second surface 111B. Such a one-side release configuration is not essential, and in another example, the second bonding area 142 may be formed on the storage space SP side of the engaging portion 122.

[0027] 4 is a diagram illustrating an example of a method for manufacturing a container with zipper tape according to this embodiment. In the illustrated example, a bag with zipper tape 100 is manufactured using a three-side bag making machine 300. The three-side bag making machine 300 includes a film supply unit 310 that supplies film 110, a tape supply unit 320 that supplies zipper tape 120, a seal bar 330 that joins the zipper tape 120 to the film 110, seal bars 341 and 342 that form a bottom seal portion 112 and a side seal portion 113 between the first surface 111A and the second surface 111B of the film 110, and cutting blades 351 and 352 that cut the film 110 in the longitudinal direction and the width direction, respectively, to cut out the bag with zipper tape 100.

[0028] Here, film supply unit 310 unwinds film 110 wound around film roll 311 and cuts it widthwise using a cutting blade (not shown) to form two sheets of film 110A, 110B forming first surface 111A and second surface 111B. Meanwhile, tape supply unit 320 unwinds zipper tape 120 wound around tape roll 321 and supplies it between the two sheets of film 110A, 110B using transport roll 322 or the like. First base portion 121A and second base portion 121B of zipper tape 120 and films 110A, 110B are supplied to seal bar 330 while being transported intermittently.

[0029] The seal bar 330 sandwiches the first base portion 121A and the second base portion 121B between the films 110A and 110B from the outside and forms the first bonding region 141, the second bonding region 142, and the third bonding region 143 by heat sealing, ultrasonic sealing, or the like, thereby bonding the first base portion 121A and the second base portion 121B to the films 110A and 110B, respectively. The seal bar 330 may include, for example, a first seal bar that forms the first bonding region 141 and the third bonding region 143 at a first sealing temperature, and a second seal bar that forms the second bonding region 142 at a second sealing temperature different from the first sealing temperature.

[0030] 1 and other figures, in this embodiment, first bonded regions 141 between the second surface 111B and a portion of the second base 121B other than the low bond strength layer 123 are alternately formed with non-bonded regions along the length of the zipper tape 120, and the non-bonded regions form steam outlets when the steam pressure in the storage space SP increases. As shown in Fig. 1, by making the length d1 of the first bonded regions 141 and the length d2 of the non-bonded regions along the length of the zipper tape 120 sufficiently short relative to the width of the opening of the container body, i.e., the dimension of the opening 101 along the length of the zipper tape 120, it is possible to form substantially the same number or substantially the same total width of non-bonded regions serving as steam outlets between the first bonded regions 141 in all zipper-tape-attached bags 100, without having to align the seal bar 330 with the films 110A and 110B and the zipper tape 120 as shown in Fig. 4.

[0031] In this embodiment, the length d1 of the first bonded regions 141 and the length d2 of the non-bonded regions are not particularly limited. However, to form steam outlets of the same width at equal intervals, it is preferable that all first bonded regions 141 have the same length d1 and all non-bonded regions have the same length d2. The length d1 of the first bonded regions 141 and the length d2 of the non-bonded regions may be different (d1 ≠ d2) or the same (d1 = d2). Alternatively, a pattern may be formed by multiple first bonded regions 141 with different lengths d1 and multiple non-bonded regions with different lengths d2. By making the period of this pattern shorter than the width of the opening of the container body, it is possible to form approximately the same number or approximately the same total width of non-bonded regions that serve as steam outlets between the first bonded regions 141 in all zipper tape-attached bags 100, just as in the case where the first bonded regions 141 and non-bonded regions are formed with equal lengths.

[0032] In an example applicable to container bodies of a general width, the length d2 of the non-bonded region is 1 mm or more. Either of the lengths d1 and d2 may be larger, but it is preferable that d2 > d1. As a non-limiting example, if the width of the container body is set in 10 mm increments, setting the lengths d1 and d2 to 2.5 mm, 5 mm, 10 mm, etc., makes it easier to form the same number of steam outlets in each zipper tape bag 100. The number of repetitions of the first bonded region 141 and non-bonded region per zipper tape bag 100 is, for example, one set or more, preferably two sets or more, and more preferably three sets or more. There is no particular upper limit, but it is, for example, 100 sets or less.

[0033] On the other hand, in this embodiment, the second bonding area 142 between the low bonding strength layer 123 and the second surface 111B is formed continuously in the longitudinal direction of the zipper tape 120. This second bonding area 142 can be formed in the same manner for each zipper tape-attached bag 100 without the need to align the seal bar 330 with the films 110A and 110B and the zipper tape 120 as shown in FIG. 4. In the example shown in FIG. 1, the second bonding area 142 is formed in a corrugated shape, but this shape is arbitrary. For example, it may be formed in a linear shape or a combination of a linear shape and a mountain shape. Furthermore, as described with reference to FIG. 2B, when the steam pressure in the storage space SP increases, the second bonding area 142 breaks down to release the steam. Therefore, it is preferable to separate the first bonding area 141 and the second bonding area 142, which are not broken down, to facilitate this breakage. However, the first bonding area 141 and the second bonding area 142 may be partially close to or in contact with each other as long as the discharge of steam is not hindered. [Explanation of symbols]

[0034] 100...bag with zipper tape, 101...opening, 110, 110A, 110B...film, 111A...first surface, 111B...second surface, 112...bottom seal portion, 113...side seal portion, 120...zipper tape, 121...base, 121A...first base portion, 121B...second base portion, 122, 122A, 122B, 122C, 122D...engagement portion, 123...low bond strength layer, 141...first bond area, 142...second bond area, 143...third bond area, 300...three-side bag making machine, 310...film supply unit, 320...tape supply unit, 330...seal bar, 341...seal bar, 342...seal bar, 351...cutting blade, 352...cutting blade.

Claims

1. a container body having at least a first surface and a second surface facing each other; a zipper tape including a first base joined to the first surface, a first engaging portion protruding from the first base, a second base joined to the second surface, and a second engaging portion protruding from the second base and engageable with the first engaging portion; A zipper tape container comprising: a low bonding strength layer is formed on a part of the second base portion facing the second surface so that the bonding strength between the second base portion and the container body is lower than that of other parts of the zipper tape; a portion of the second base other than the low bond strength layer and the second surface are bonded together by first bonded regions which are alternately formed with non-bonded regions in the length direction of the zipper tape; A zipper tape-equipped container in which the low bonding strength layer of the second base and the second surface are bonded together at a second bonding region that is formed continuously in the length direction.

2. 2. The container with zipper tape according to claim 1, wherein the first bonded area and the second bonded area are spaced apart.

3. 3. The container with zipper tape according to claim 1, wherein all of the first bonded regions have the same length in the length direction, and all of the non-bonded regions also have the same length.

4. The container with zipper tape according to claim 3 , wherein the length of the first bonded region and the length of the non-bonded region are the same in the length direction.

5. The container with zipper tape according to claim 1 , wherein the first bonded region and the non-bonded region form a pattern having a period shorter than the width of the opening of the container body.

6. The container with zipper tape according to claim 1 , wherein the second bonding area is formed in a corrugated shape.

7. 7. The container with zipper tape according to claim 1, wherein a peel strength between the low bonding strength layer and the second surface is 5 N / 15 mm or more and 30 N / 15 mm or less.

8. A method for manufacturing a container with zipper tape, the method comprising: a container body having at least a first surface and a second surface opposing each other; and a zipper tape including a first base joined to the first surface, a first engaging portion protruding from the first base, a second base joined to the second surface, and a second engaging portion protruding from the second base and engageable with the first engaging portion, the method comprising forming a low bonding strength layer on a part of the second base opposing the second surface, the low bonding strength layer being configured so that the bonding strength between the second base and the container body is lower than that of other parts of the zipper tape, forming first bonded regions alternately with non-bonded regions in a longitudinal direction of the zipper tape between the second surface and a portion of the second base other than the low bond strength layer; forming a second bonding region that is continuous in the length direction between the low bonding strength layer of the second base portion and the second surface; A method for manufacturing a container with a zipper tape, comprising:

9. An apparatus for manufacturing a zipper tape-attached container, the apparatus comprising: a container body having at least a first surface and a second surface opposed to each other; and a zipper tape including a first base joined to the first surface, a first engaging portion protruding from the first base, a second base joined to the second surface, and a second engaging portion protruding from the second base and engageable with the first engaging portion, wherein a low bonding strength layer is formed on a part of the second base opposing the second surface, the low bonding strength layer being configured so that the bonding strength between the second base and the container body is lower than that of other parts of the zipper tape, a means for forming first bonded regions alternately with non-bonded regions in the length direction of the zipper tape between the second surface and a portion of the second base other than the low bond strength layer; a means for forming a second bonding region that is continuous in the length direction between the low bonding strength layer of the second base portion and the second surface; An apparatus for manufacturing a container with zipper tape, comprising:

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