JP2017104485A - Zipper tape body, bag body with engaging member, manufacturing method of bag body with engaging member, and manufacturing apparatus of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag body with a zipper tape which can be easily opened.SOLUTION: A pair of sheet-like sleeve parts 30 having rigidity higher than that of a zipper tape 20 are laminated and formed on an inner surface of a bag body 10 with the zipper tape 20 to be located on a storage space 10C side from the zipper tape 20. A ruled line shaped engaging thin wall part 24 is provided at the center of an engaging part 23 of the zipper tape 20. A ruled line shaped sleeve thin wall part 31 is provided at the center of a pair of sleeve parts 30 in a width direction of the zipper tape 20 to be located on the same straight line as the engaging thin wall part 24. When a pressing force is applied in a width direction of the bag body 10, the pair of sleeve parts 30 are bent at the sleeve thin wall part 31, and the bag body 10 is brought into a state of bulging from the inside into a square cylinder shape. By bending the pair of sleeve parts 30, the engagement of the engaging part 23 is released from the engaging thin wall part 24, and thereby the bag body can be easily opened.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a zipper tape body, a bag body with an engagement member, a method for manufacturing a bag body with an engagement member, and a manufacturing apparatus therefor.

As a package for storing food, stationery, and the like, a bag configuration including engagement members such as a zipper tape, hook-and-loop fastener, and adhesive tape that can be detached and attached is known. In such a package, it is opened by picking the opening edge of the package with a fingertip, releasing the engagement of the engagement member so as to widen the opening, taking out and storing the contents, and then again It is resealed by engaging the engaging member. By the way, since the package cannot be opened when one hand is closed by other work at the time of opening, the structure which can open with one hand is known (for example, refer patent document 1).
In the package described in Patent Document 1, a bag body in which a zipper tape is provided on an inner surface of an upper end portion is inserted into a sleeve formed in a cylindrical shape with cardboard. The sleeve has a front surface portion and a back surface portion that are bent by a pair of first creases on both side ends, and each of the front surface portion and the back surface portion has a second position that is offset to one side with respect to the center line in the left-right direction. A crease is provided, which is divided into a first region having a large width and a second region having a small width. The first region of the sleeve and the bag body are bonded in the vicinity of the zipper tape to form a package. When the both side ends of the sleeve are pressed, the second folded crease of the sleeve is folded outward to bend into a parallelogram-shaped cylinder, and the zipper tape is disengaged. Opened.

JP 2014-88192 A

However, in the package as described in Patent Document 1, the zipper tape is disengaged by folding the sleeve into a parallelogram-shaped cylinder, so that when the sleeve is bent, the male and female of the sipper tape are mutually connected. From the sliding state, the engagement is released, and the engagement may be difficult to release. In this case, the repeated disengagement operation causes a new crease in the cardboard, making it more difficult for the sleeve to be bent into a cylindrical shape, and there is a possibility that it cannot be satisfactorily opened.
An object of this invention is to provide the manufacturing method of the zipper tape body which can be opened easily, a bag body with an engagement member, a bag body with an engagement member, and its manufacturing apparatus.

  The zipper tape body of the present invention includes a pair of belt-like bases, an engagement portion that is provided in series on each of the belt-like bases and that can be engaged with and disengaged from each other, and a sheet that is continuously provided on one edge in the width direction of the belt-like base. A sleeve portion, and at least one of the engagement portion and the sleeve portion has a middle position in a direction corresponding to a longitudinal direction of the strip base portion, and a width direction of the strip base portion. It is characterized by the weak part being provided along.

  In this invention, when a pressing force is applied in the direction of narrowing the longitudinal direction from both longitudinal ends of the belt-like base portion, the weakening portion starts bending at the sleeve portion or the engaging portion provided with the weakening portion, and the sleeve portion or the engagement portion is started. The engagement of the engagement portion is released according to the bending of the joining portion and the belt-like base portion, and the engagement portion can be easily released.

And in this invention, the said weak part can also be set as the structure provided in the engaging part.
In this invention, by providing the weakened portion in the engaging portion, when the pressing force is applied, the engaging portion is bent from the position of the weakened portion and the release of the engagement is started, so that the engaging portion can be easily released.

  The zipper tape body of the present invention includes a pair of belt-like bases, an engagement portion that is provided in series on each of the belt-like bases and that can be engaged with and disengaged from each other, and a sheet that is continuously provided on one edge in the width direction of the belt-like base. Each of the engagement portion and the sleeve portion is provided with a weakening portion along the width direction of the belt-like base portion at an intermediate position in a direction corresponding to the longitudinal direction of the belt-like base portion. It is characterized by being.

  In this invention, when a pressing force is applied in a direction narrowing the longitudinal direction from both longitudinal ends of the belt-like base portion, the sleeve portion is bent at the weakened portion, and the engaging portion is at the weakened portion according to the bending of the sleeve portion. The engagement is released when the bending is started, and the engagement portion can be easily released.

Here, as the weakened portion, for example, it is thinner than other portions, missing, perforations that are so-called perforations in which holes are connected in broken lines, softer than other portions in addition to those in which concave portions are connected in broken lines, etc. For example, it is formed by a member, so that the engaging portion and the sleeve portion are easily bent at the portion, and the rigidity is weaker than other portions, for example, the bending elastic modulus is small.
Further, the weakened portion may be provided in a straight line shape along the width direction of the belt-like base portion, or may be provided in a curved shape such as a wave shape or a zigzag shape, and may be provided not only in one place but also in a plurality of places.
Further, the intermediate position where the weakened portion is provided is not located at both end portions in the longitudinal direction of the belt-like base portion, and includes any position between both end portions in the longitudinal direction.
In addition, the sleeve portion can be configured to have higher rigidity than the belt-like base portion. That is, when the sleeve portion is higher in rigidity than the belt-like base, for example, the bending elastic modulus is larger than that of the belt-like base, the belt-like base also bends correspondingly when the sleeve portion is bent at the weakened portion by pressing force. Thus, the engagement portion can be easily released.

And in this invention, the said weak part can also be set as the structure provided in the same straight line.
In this invention, when the pressing force is applied, the sleeve portion and the engaging portion are bent at the weakened portion located on the same straight line, and the pressing force can be efficiently used for releasing the engagement of the engaging portion.

Moreover, in this invention, the said weak part can also be set as the structure provided in the center position in the direction corresponding to the longitudinal direction of the said strip | belt-shaped base part.
In this invention, when the pressing force is applied, the sleeve portion and the engaging portion are bent at the center, and the pressing force can be efficiently applied to release the engagement of the engaging portion.

Furthermore, in this invention, the said weak part can also be set as the structure which is a groove-shaped thin part.
In the present invention, the engagement portion can be easily disengaged with a simple configuration.
Here, the concave groove shape is a configuration such as a C-shaped cross-section, a U-shape, a V-shaped cross-section, and the like that is thinner than other portions at that position.

And in this invention, the said thin part can also be set as the structure formed in the ruled line shape which becomes gradually wide toward the same side as the side in which the said engaging part in the said strip | belt-shaped base was provided.
In this invention, when the pressing force is applied, the sleeve portion and the engaging portion are bent in the direction in which the pair of band-shaped bases are separated from each other, and the pressing force can be efficiently applied to release the engagement of the engaging portion.

Moreover, in this invention, the said weak part can also be set as the structure which is a several hole or recessed part which continues in a broken line shape.
In the present invention, the engagement portion can be easily disengaged with a simple configuration.

And in this invention, the said engaging part is provided with the male part and the female part, and the said male part is the 1st male side nail | claw which protrudes in the side in which the said sleeve part was provided with respect to the said strip | belt-shaped base part, A second male claw projecting on the opposite side of the first male claw, and the female portion includes a first female claw engageable with the first male claw and the second male claw A second female side claw that can be engaged with the claw, and the first male side claw has a slope facing the belt-like base provided with the male part, the tangent to the slope, and the male part Is formed at an angle greater than 90 °, and the second male claw has a slope facing the belt-like base provided with the male part, and the slope The angle β formed by the tangent line and the perpendicular line of the belt-like base provided with the male part may be formed at an angle smaller than 90 °.
According to the present invention, the first male claw on the side where the male sleeve portion is provided can have a cross-sectional chevron shape, and the second male claw on the opposite side of the male portion can have a shape protruding in a cross-sectional shape. . For this reason, when a pressing force is applied, the first male claw and the first female claw are disengaged without being strongly engaged, and the engagement portion is more easily disengaged.

Moreover, in this invention, the said weak part can also be set as the structure provided in the linear form along the width direction of the said strip | belt-shaped base part.
In this invention, by providing the weakened portion in a straight line along the width direction of the belt-like base, bending at the position of the weakened portion due to the pressing force can be easily obtained with a simple configuration.

  A bag body with an engagement member of the present invention includes a bag body having a storage space capable of storing an article to be packaged, a band-shaped engagement member that is joined to an inner surface of the bag body and engages with each other, and And a sleeve portion provided on the bag body at a position closer to the storage space than the engagement member, and the engagement member and the sleeve portion are intermediate in a direction corresponding to a longitudinal direction of the engagement member. A weakened portion is provided at the position along the width direction of the engaging member.

  In this invention, when a pressing force is applied to the bag body in the direction of narrowing the longitudinal direction from both longitudinal ends of the belt-like base portion, the sleeve portion bends at the weakened portion and expands so that the bag body expands, and the sleeve portion is bent. Accordingly, the engagement portion starts to be bent at the weakened portion, and the engagement is released, so that the engagement portion can be easily released and the bag can be opened easily.

  A bag body with an engagement member of the present invention includes a bag body having a storage space capable of storing an article to be packaged, a band-shaped engagement member that is joined to an inner surface of the bag body and engages with each other, and A sleeve portion provided on the bag body at a position closer to the storage space than the engagement member, and at least one of the engagement member and the sleeve portion includes a longitudinal portion of the engagement member. A weakened portion is provided along the width direction of the engaging member at an intermediate position in a direction corresponding to the direction.

  In this invention, when a pressing force is applied to the bag body in the direction of narrowing the longitudinal direction from both longitudinal ends of the belt-like base portion, the weakened portion starts bending at the sleeve portion or the engaging member provided with the weakened portion, and the sleeve The engagement of the engagement member is released according to the bending of the part or the engagement member, and the engagement member can be easily released.

And in this invention, the said weak part can also be set as the structure provided in the engaging part at least.
In the present invention, by providing a weakened portion at least in the engaging portion, when a pressing force is applied, it is bent from the position of the weakened portion and the release of the engagement is started, so that the engagement member can be easily released. .

Here, the bonding is not limited to heat sealing, and various methods such as ultrasonic welding and adhesion using an adhesive can be used.
Further, the sleeve portion can be configured to have higher rigidity than the engaging member. That is, the rigidity of the sleeve portion is higher than that of the engaging member. For example, when the bending elastic modulus is made larger than that of the engaging member, when the pressing force is applied and the sleeve portion bends at the weakened portion, the engaging member also corresponds. Since it bends, the engagement member can be easily disengaged.

And in this invention, the said engaging member is a zipper provided with a pair of strip | belt-shaped base part each joined to the inner surface of the said bag main body, and the engaging part which was provided in series in the said strip | belt-shaped base part, respectively, and can be engaged / disengaged mutually. It can also be set as the structure which is a tape.
In the present invention, since the zipper tape that is easy to open and reseal the bag body and has high versatility is used, the bag can be easily formed and can be applied to the storage of various packages.

In the present invention, the engaging portion includes a male portion and a female portion, and the male portion is on a side opposite to the first male side claw and the first male side claw protruding to the storage space side. A projecting second male claw, and the female portion includes a first female claw engageable with the first male claw and a second female side engageable with the second male claw. The first male side claw has a slope facing the band-shaped base provided with the male part, and a tangent to the slope and a perpendicular of the band-shaped base provided with the male part Is formed at an angle greater than 90 °, and the second male claw has a slope facing the belt-like base provided with the male part, and the tangent to the slope and the male part are provided. Alternatively, the angle β formed with the perpendicular of the band-shaped base portion may be formed to an angle smaller than 90 °.
In this invention, the 1st male side nail | claw in the storage space side of the bag main body in a male part can be made into the shape which protrudes in cross-sectional mountain shape, and the 2nd male side nail | claw on the opposite side of a male part protrudes in cross-sectional hook shape. For this reason, when a pressing force is applied to the bag body, the first male claw and the first female claw are disengaged without being strongly engaged, and the engagement portion is easily disengaged.

And in this invention, the said sleeve part can also be set as the structure laminated | stacked facing the inner surface of the said bag main body, formed in the sheet form whose rigidity is higher than the said engagement member.
In this invention, when a pressing force is applied to the bag body, the sleeve portion is bent on the inner surface side of the bag body so as to inflate the bag body, and the pressing force can be efficiently applied to release the engagement portion. .

Moreover, in this invention, the said weak part can also be set as the structure provided in the same straight line.
In this invention, when a pressing force is applied to the bag body, the sleeve portion and the engaging portion are bent at the weakened portion located on the same straight line, and the pressing force is efficiently used for releasing the engagement of the engaging portion. Can act.

Furthermore, in this invention, the said weak part can also be set as the structure provided in the center position in the direction corresponding to the longitudinal direction of the said engagement member.
In this invention, when a pressing force is applied to the bag body, the sleeve portion and the engaging portion are bent at the center, and the pressing force can be efficiently applied to release the engagement of the engaging portion.

Moreover, in this invention, the said weak part can also be set as the structure which is a groove-shaped thin part.
In the present invention, easy opening can be obtained with a simple configuration.

And in this invention, the said thin part can also be set as the structure currently formed in the ruled line shape which becomes gradually wide toward the surface side which mutually engages in the said engaging member.
In this invention, when a pressing force is applied to the bag body, the sleeve portion and the engaging portion are bent in a direction in which the engagement is separated from each other, and the pressing force can be efficiently applied to release the engagement portion. .

Moreover, in this invention, the said weak part can also be set as the structure which is a several hole or recessed part which continues in a broken line shape.
In the present invention, easy opening can be obtained with a simple configuration.

Furthermore, in this invention, the said weak part can also be set as the structure provided in the linear form along the width direction of the said engagement member.
In this invention, by providing the weakened portion in a straight line along the width direction of the engaging member, bending at the position of the weakened portion by the pressing force can be easily obtained with a simple configuration.

  The bag body with an engagement member of the present invention comprises a bag body having a storage space capable of storing an object to be packaged, and the zipper tape body of the present invention joined to the inner surface of the bag body, the zipper tape The body is characterized in that the sleeve portion is positioned and joined to the storage space side with respect to the engaging portion.

  In this invention, when the pressing force is applied to the bag body, the zipper tape body of the present invention that can easily disengage the engaging portion is provided, so that the bag body can be easily opened.

  The manufacturing method of a bag body with an engagement member of the present invention is composed of at least one film and has a storage space capable of storing an object to be packaged, and an inner surface of the bag body that can be joined to and engaged with each other. A manufacturing method for manufacturing a bag body with an engagement member, comprising: a pair of band-like engagement members; and a sleeve portion provided on the bag body at a position closer to the storage space than the engagement member. A step of feeding the film in an overlapping manner, a step of feeding the engagement member, a step of feeding the strip-shaped sleeve member, and separating the sleeve member into a pair of strip-shaped sleeves at an intermediate position in the width direction. A weakening portion in at least one of the engagement member and the sleeve member or the belt-like sleeve, and a predetermined interval in the delivery direction of the sleeve member or the belt-like sleeve A step of punching or thinning, a step of joining a pair of belt-like sleeves provided with the punching or thinning to the overlapping film, a step of joining the engaging member to the overlapping film, and the belt-like shape A step of joining the overlapping film by joining the sleeve and the engaging member at the punched or thinned position and a step of cutting at the position where the film is joined are performed.

  In the present invention, a pair of strip-shaped sleeves that are punched or thinned at predetermined intervals and separated from the strip-shaped sleeve members are joined to the film together with the engaging members. Join the overlapping films at the punching or thinning position. At the position where the film is joined, the amount of the intervening belt-shaped sleeve is reduced by punching or thin-wall processing, and the film is joined well. A bag body with an engagement member provided with a sleeve portion and an engagement member is produced by cutting at the joining position of the film. This makes it possible to produce a bag body with an engagement member that can be easily opened without causing poor film bonding, and improve the yield.

Here, as the timing for performing punching or thin wall processing, even if the sleeve member is punched or thinned and then separated, the sleeve member is separated into a pair of belt-shaped sleeves and then punched or thinned. May be. Furthermore, when the sleeve member is punched or thinned, the sleeve member may be folded in advance in the width direction. That is, it may be configured as a pair of belt-like sleeves provided with punching or thin-wall processing before being joined to overlapping films.
The shape to be punched or thinned can be various shapes such as a circle, an ellipse, a trapezoid, a rhombus, a square, a rectangle, a slit, and a broken line.
Further, the weakened portion may be formed either before or after punching or thin-wall processing. Further, the weakened portion may be formed after separating into a pair of belt-shaped sleeves. The weakened portion is not limited to being provided on the sleeve member or the belt-like sleeve, but may be provided only on the engaging member, or may be provided on both the engaging member and the sleeve member or belt-like sleeve.
Further, as the separation into the pair of belt-shaped sleeves, separation may be performed by tearing or the like in addition to cutting with a blade. And as a cutter, any thing, such as a blade of a cutter knife and a rotary blade, can be used.
The step of feeding the engagement member and the step of feeding the sleeve member may be configured, for example, to send out the zipper tape body of the present invention, separate the engagement member and the sleeve member, and send out each. .

In the present invention, in the step of forming the weakened portion in the sleeve member or the belt-like sleeve, the weakened portion may be formed between the positions where the punching or thinning process is performed. .
According to the present invention, by forming the weakened portion between the positions where the punching or thinning is performed, the weakened portion is formed in the middle of the sleeve portion in the width direction, and the bag body with the engagement member that can be easily opened can be provided. .

Moreover, in this invention, before the process of isolate | separating the said sleeve member into a pair of strip-shaped sleeve, it can also be set as the structure which implements the process of turning back the said sleeve member in the width direction.
In the present invention, after the sleeve member is folded back in the width direction, the sleeve member can be easily separated in a straight line by separating the sleeve member into a pair of belt-like sleeves.

Furthermore, in the present invention, the sleeve member may be configured such that a folding groove is provided at the center in the width direction.
In this invention, the sleeve member can be easily folded by using the sleeve member having the folding groove for folding at the center in the width direction.

Moreover, in this invention, when forming a weak part in the said sleeve member, it can also be set as the structure implemented before implementing the process of turning back the said sleeve member in the width direction.
In the present invention, the weakened portion can be easily formed by forming the weakened portion before the sleeve member is folded back in the width direction.

Furthermore, in this invention, it can also be set as the structure which implements the process of stamping or thin-walling after the process of turning back the said sleeve member.
In the present invention, a pair of belt-like sleeves can be punched or thinned in one operation by punching or thinning after the sleeve member is folded back in the width direction.
Here, by performing the punching process, it is possible to reduce the abundance of the strip-shaped sleeve interposed during the joining of the films, and it is possible to join the films satisfactorily.

  The manufacturing apparatus for a bag body with an engagement member according to the present invention is composed of at least one film and has a storage space capable of storing an article to be packaged, and an inner surface of the bag body that can be joined to and engaged with each other. A manufacturing apparatus for manufacturing a bag body with an engagement member, comprising: a pair of band-shaped engagement members; and a sleeve portion provided on the bag body at a position closer to the storage space than the engagement member. A film delivery section for feeding the film in an overlapping manner, an engagement member delivery section for delivering the engagement member, a sleeve member delivery section for delivering a strip-shaped sleeve member, and the sleeve member in the width direction. A separation portion that separates into a pair of belt-like sleeves at an intermediate position, a weakening portion that forms a weakening portion in at least one of the engagement member and the sleeve member or the belt-like sleeve, and the sleeve member Is a processing section for punching or thinning at a predetermined interval in the feeding direction of the strip-shaped sleeve, a sleeve joint section for joining a pair of strip-shaped sleeves provided with the punching or thin-wall processing to the overlapping film, and the engagement An engagement member joining portion for joining the joining member to the overlapping film, a film joining portion joining the overlapping film by joining the belt-shaped sleeve and the engaging member at the punched or thinned position, and the film And a cutting part that cuts at a position where the two are joined.

  In the present invention, a pair of strip-shaped sleeves that are punched or thinned at predetermined intervals and separated from the strip-shaped sleeve members are joined to the film together with the engaging members. Join the overlapping films at the punching or thinning position. At the position where the film is joined, the amount of the intervening belt-shaped sleeve is reduced by punching or thin-wall processing, and the film is joined well. A bag body with an engagement member provided with a sleeve portion and an engagement member is produced by cutting at the joining position of the film. This makes it possible to produce a bag body with an engagement member that can be easily opened without causing poor film bonding, and improve the yield.

The top view which shows the bag body with a zipper tape which concerns on one Embodiment of this invention. II-II sectional drawing in FIG. Sectional drawing which shows the zipper tape vicinity of the said bag body with a zipper tape. The perspective view which notched a part which shows the thin part vicinity of a zipper tape. III-III sectional drawing in FIG. The schematic block diagram of the manufacturing apparatus which manufactures the said bag with a zipper tape. Sectional drawing which shows the open state in the position of the sleeve part of the said bag body with a zipper tape. Sectional drawing which shows the bag body with a zipper tape which concerns on other embodiment of this invention. Sectional drawing which shows the bag body with a zipper tape which concerns on further another embodiment of this invention. Sectional drawing which shows the bag body with a zipper tape which concerns on further another embodiment of this invention. Sectional drawing which shows the bag body with a zipper tape which concerns on further another embodiment of this invention. Sectional drawing which shows the unseal | opened state in the sleeve part position of the said bag body with a zipper tape. Sectional drawing which shows the bag body with a zipper tape which concerns on further another embodiment of this invention. Sectional drawing which shows the unseal | opened state in the sleeve part position of the said bag body with a zipper tape. Sectional drawing which shows the bag body with a zipper tape which concerns on further another embodiment of this invention. Sectional drawing which shows the unseal | opened state in the sleeve part position of the said bag body with a zipper tape. Sectional drawing which shows the bag body with a zipper tape which concerns on further another embodiment of this invention. Sectional drawing which shows the bag body with a zipper tape which concerns on further another embodiment of this invention. Sectional drawing which shows the zipper tape body which concerns on other embodiment of this invention. The top view which shows the bag body with a zipper tape which concerns on other embodiment of this invention. It is explanatory drawing which shows the processing condition of the sleeve original fabric which concerns on other embodiment of this invention, (A) is the plane and cross section of a sleeve original fabric, (B) is a ruled line formation process, (C) is a folding process, (D) shows a processing step, and (E) shows a separation step. The schematic block diagram of the manufacturing apparatus which manufactures the bag with a zipper tape in embodiment shown in FIG. The top view which shows the bag body with a zipper tape in embodiment shown in FIG. Sectional drawing which shows the said bag body with a zipper tape. It is explanatory drawing which shows the punching hole provided in the sleeve original fabric which concerns on other embodiment of this invention, (A) shows a rectangular punching hole, (B) shows the punching hole of multiple holes.

Hereinafter, the bag body with a zipper tape of one embodiment concerning the bag body with an engagement member of the present invention is explained based on a drawing.
In this embodiment, as a bag body with a zipper tape, although the package body which wraps various articles | goods, such as a foodstuff, a medicine, a medical supplies, a stationery, miscellaneous goods, can be illustrated, it is not this limitation.

[Configuration of bag with zipper tape]
The plane of the bag body with a zipper tape is shown by FIG. FIG. 2 shows a cross section of the bag body with a zipper tape at the position II-II in FIG. FIG. 3 shows a cross section of the bag body with a zipper tape in the vicinity of the zipper tape. FIG. 4 is a perspective view of the vicinity of the thin portion of the zipper tape. FIG. 5 shows a cross section of the bag body 1 with a zipper tape at the position of III-III in FIG.
1 and 2, a bag body 1 with a zipper tape is formed by, for example, a three-side bag-making method, is rectangular in a plan view, and can store an article P to be packaged, and an inner surface of the bag body 10. A zipper tape 20 as an engagement member, for example, a heat-sealed engagement member, and a pair of sleeve portions 30 joined to the inner surface of the bag body 10 are provided.

(Bag body configuration)
The bag body 10 includes base films 11 </ b> A and 11 </ b> B (only 11 </ b> A shown in FIG. 1) which are films, and a pair of side seal parts 12, a top seal part 13, and a bottom seal part 14 are formed on the periphery. Yes.
The bag body 10 is partitioned by the side seal portion 12, the top seal portion 13, and the bottom seal portion 14 into a storage space 10C in which the article P (see FIG. 1) is stored.

A zipper tape 20 is attached to the opposing base film 11A, 11B of the bag body 10.
Note that, in the side seal portion 12 of the bag body 10, both ends in the longitudinal direction of the zipper tape 20 are flattened point seal portions (not shown).
Further, in the bag body 10, the position where both ends of the zipper tape 20 in the longitudinal direction intersect with the periphery of the side seal portion 12 of the bag body 10, and the periphery of the top seal portion 13 and the side seal portion 12 intersect. A notch 17 is cut between the two positions.
In addition, the bag body 10 is provided with side seal portions 12 and on both sides, a display 18 is provided on the side of the storage space 10C from the position where the zipper tape 20 is provided, and notifies that it is pressed when opened. Yes.
In consideration of opening with one hand, the bag body 10 may have a width dimension narrower than that of the palm, for example, 20 cm or less, preferably 15 cm or less, particularly 10 cm or less. Although the minimum of a width dimension is not prescribed | regulated in particular, it shall be more than the dimension in which the to-be-packaged goods P can be taken in / out.

As the base films 11A and 11B, for example, a single-layer film or a multi-layer film formed of a thermoplastic resin such as (Linear Low Density Polyethylene: LLDPE) or polypropylene (Polypropylene: PP). Can be used. As the multilayer film, biaxially stretched polypropylene (Oriented Polypropylene: OPP), biaxially stretched polyethylene terephthalate (OPET), biaxially stretched nylon (ONy), or the like can be used for the front substrate. The multilayer film may have a configuration including an inorganic layer such as aluminum vapor deposition or lamination of aluminum foil for the purpose of so-called gas barrier or light shielding.
Further, the base films 11A and 11B are not particularly limited as long as they are packaging materials, but for example, the thickness is preferably 10 μm or more and 200 μm or less. If the thickness dimension is less than 10 μm, the seal strength and bag strength may be weakened. On the other hand, when the thickness dimension exceeds 200 μm, the bag strength becomes strong and it becomes difficult to bend and it may be difficult to open the bag.

(Configuration of zipper tape)
The principal part cross section of the zipper tape 20 is shown by FIGS.
As shown in FIGS. 2 and 3, the zipper tape 20 includes a male member 21 and a female member 22 that are detachable from each other.
The male member 21 and the female member 22 are bonded to the opposing inner surfaces of the base film 11A and 11B by an appropriate method such as heat sealing or adhesion.

The male member 21 has a male side belt-like base portion 21A that is bonded, for example, heat-sealed, to the inner surface of the bag body 10, and a male portion 21B as a male side collar portion that is continuous with the male side belt-like base portion 21A. The male part 21B is formed along the longitudinal direction of the male side belt-like base part 21A (paper surface penetration direction in FIG. 2).
The male part 21B has a first male claw 21B1 protruding to the storage space 10C side and a second male claw 21B2 protruding to the opposite side of the first male claw 21B1.
The first male claw 21B1 has a storage-side inclined surface 21B3 facing the male-side band-shaped base 21A, and an angle α formed between the tangent line 21B4 of the storage-side inclined surface 21B3 and the perpendicular 21B5 of the male-side band-shaped base 21A is 90. It is formed in a cross-sectional chevron shape with an angle larger than °.
On the other hand, the second male claw 21B2 has an opening-side inclined surface 21B6 facing the male-side band-shaped base 21A, and an angle β formed between the tangent line 21B7 of the opening-side inclined surface 21B6 and the perpendicular 21B5 of the male-side band-shaped base 21A is It is formed in a cross-sectional shape having an angle smaller than 90 °.
Here, the tangent line 21B4 is a tangent line of the plane if the storage-side slope 21B3 is a plane, and a tangent line passing through the inflection point S if the curved surface is curved. The same applies to the tangent line 21B7.

The female member 22 is joined to the inner surface of the bag body 10, for example, a female side belt-like base portion 22 A that is heat-sealed, and a female side belt-like base portion 22 A that protrudes from the female side belt-like base portion 22 A. Female portion 22B. The female portion 22B is formed along the longitudinal direction of the female-side belt-like base portion 22A (the paper surface penetration direction in FIG. 2).
The female portion 22B is formed so that the first female claw 22B1 engageable with the first male claw 21B1 and the second female claw 22B2 engageable with the second male claw 21B2 face each other. ing.
In the zipper tape 20, the male part 21B and the female part 22B constitute an engaging part 23 that can be engaged and disengaged.

The zipper tape 20 is located in the middle of the longitudinal direction, for example, at the center, and the engagement thin wall portion 24, which is a thin portion as a weakened portion formed in a ruled line shape, is formed on the male portion 21B and the female portion 22B. Is provided. Here, the engagement release of the engagement portion 23 starts from the center where the bag body 10 is most widened when the bag body 10 is opened, and the engagement can be easily released. Therefore, the engagement thin portion 24 can be provided in the center. preferable.
As shown in FIG. 4, the engagement thin-walled portion 24 is a scribing that gradually increases in diameter toward the same side as the side on which the engagement portion 23 of the male side belt-like base portion 21A and the female side belt-like base portion 22A is provided. It is formed in a linear shape, that is, cut out in a substantially V shape in a side view.
In addition, in the position of the side seal part 12 of the zipper tape 20, it is good to form the thickness dimension thinly by heat crushing etc. at the position of the edge of the storage space 10C side of the side seal part 12 at least. This configuration is preferable because when the engagement of the engagement portion 23 is released, the male member 21 and the female member 22 can be separated from the storage space 10C side of the side seal portion 12 and can be opened greatly. Note that FIG. 4 exaggerates the substantially V-shaped shape in a side view for convenience of explanation, but the sealing performance is not impaired by the degree of incision unless it is formed extremely large.

Such a zipper tape 20 is formed using, for example, a polyolefin resin.
As the polyolefin resin, for example, polyethylene resins such as low density polyethylene or linear low density polyethylene, and polypropylene resins are preferable. As the polypropylene resin, homopolypropylene (H-PP), block polypropylene (B-PP), random polypropylene (R-PP), propylene-ethylene-butene 1 random terpolymer can be used.
In addition, as the zipper tape 20, as the male part 21B and the female part 22B, for example, polyolefin resin, specifically, 0.1 part by mass or more and 40 parts by mass or less with respect to 100 parts by mass of the high density polyethylene resin. It can also be formed of a resin composition to which is added. By setting it as such a composition, when the engagement thin part 24 is press-formed to the engagement part 23, the shape retainability which hold | maintains the shape can be provided.
One or more inorganic fillers are selected from the group consisting of talc, mica, calcium carbonate, magnesium carbonate, magnesium oxide, nucleating agent (crystal accelerator), precipitated barium sulfate, wollastonite, and montmorillonite. Can be arbitrarily selected. Talc is particularly preferable. Furthermore, when an inorganic nucleating agent is added in addition to talc, the shape retention performance is improved. Here, the inorganic nucleating agent is not particularly limited. For example, it is preferable to use a nucleating agent for polyethylene.

As shown in FIGS. 1, 2, and 5, the sleeve portion 30 is formed in a sheet shape having a higher bending elastic modulus than the rigidity of the male side belt-like base portion 21A and the female side belt-like base portion 22A of the zipper tape 20. ing. The sleeve portion 30 is laminated on the inner surface of the bag body 10 on the side of the storage space 10C from the zipper tape 20 and bonded, for example, heat sealed.
Here, the flexural modulus may be measured according to JIS K 7171.
The sleeve portion 30 is preferably provided so that one edge is not positioned on the side seal portion 12. With this configuration, when a pressing force is applied to the bag body 10 in the direction of the arrow shown in FIG. 7, the pair of sleeve portions 30 bend and the edges of the pair of sleeve portions 30 on the side seal portion 12 side. Can be separated greatly. For this reason, the pressing force can effectively act to inflate the bag body 10 into a square cylinder.

The sleeve portion 30 is a thin portion as a weakened portion linearly along the width direction of the zipper tape 20 in the middle of the width direction of the bag body 10, which is the longitudinal direction of the zipper tape 20, for example, at the center position. A sleeve thin portion 31 is provided.
As shown in FIG. 5, the sleeve thin-walled portion 31 has a scribing line that gradually increases in diameter toward the same side as the side where the engaging portion 23 of the male side belt-like base portion 21A and the female side belt-like base portion 22A is provided. In other words, it is formed so as to be cut into a substantially V shape in a side view.

Here, the sleeve thin portion 31 is preferably provided in a straight line since the flexibility of the sleeve portion 30 is facilitated when a pressing force is applied to the bag body 10.
Furthermore, the sleeve thin portion 31 is preferably provided at the center because the center where the sleeve body 10 is most widened when the bag body 10 is opened is easily bent.
Further, the rigidity of the sleeve thin portion 31 is weakened at the position of the sleeve thin portion 31, and when the pressing force is applied in the direction of the arrow shown in FIG. It is formed to a depth that can be bent at a position. Specifically, the depth of the sleeve thin portion 31 is 50% or more with respect to the thickness dimension of the sleeve portion 30.

Such a sleeve portion 30 is formed using, for example, a polyolefin-based resin.
As the polyolefin resin, for example, polyethylene resins such as low density polyethylene or linear low density polyethylene, and polypropylene resins are preferable. As the polypropylene resin, homopolypropylene (H-PP), block polypropylene (B-PP), random polypropylene (R-PP), propylene-ethylene-butene 1 random terpolymer can be used.
In addition, as the sleeve part 30, it forms with the resin composition which added 0.1 mass part or more and 40 mass parts or less of inorganic fillers, for example with respect to 100 mass parts of polyolefin-type resin, specifically high-density polyethylene resin. You can also By setting it as such a composition, when the sleeve thin part 31 is press-formed in the sleeve part 30, the shape retainability which hold | maintains the shape can be provided. The inorganic filler to be added is the same as in the case of the engaging portion 23.

  And the bag body 1 with a zipper tape manufactures the bag 1A with a zipper tape (refer FIG. 6) in which the side seal part 12 and the top seal part 13 were provided, and the insertion opening which this zipper tape bag 1A opens is not shown in figure To be packaged P. Thereafter, the bottom seal portion 14 is provided and the inlet is sealed, whereby the zipper tape-attached bag body 1 in which the article to be packaged P is stored is obtained.

[Manufacture of bags with zipper tape]
Next, as an operation for manufacturing the above-described zipper tape-attached bag body 1, an operation for manufacturing the zipper tape-attached bag 1 </ b> A before storing the article to be packaged P will be described with reference to the drawings. In addition, various methods can be employ | adopted for manufacturing the bag 1A with a zipper tape.
The schematic block diagram of the manufacturing apparatus which manufactures a bag with a zipper tape is shown by FIG.

(manufacturing device)
The manufacturing apparatus 5 shown in FIG. 6 is based on a so-called three-way bag making machine, and joins the male member 21 and the female member 22 and the pair of sleeve portions 30 to the base film 11A and 11B, respectively. A bag with zipper tape 1A is made.
The manufacturing apparatus 5 includes a pair of film supply units 51 that are film delivery units that deliver the base films 11A and 11B, and a pair of engagement member delivery units that send out the zipper tape 20 in which the male part 21B and the female part 22B are engaged. The tape supply unit 52, the sleeve member supply mechanism 53 that is a sleeve member supply unit that sends out the pair of sleeve portions 30, the male member 21 and the female member 22, and the pair of sleeve portions 30 are formed on the base film 11A, 11B. Each of them is heat-sealed, and a bag making portion 54 for forming the bag main body 10 to form a bag 1A with a zipper tape is provided.

The film supply unit 51 is detachably mounted with a film take-up roll 111 around which the film 11 is wound, and the film 11 is cut into base films 11A and 11B with a cutting blade (not shown), etc. 11A and 11B are superimposed and sent out.
Note that the delivery of the base films 11A and 11B is not limited to a configuration in which the base films 11A and 11B are continuously sent out at a constant speed, for example, and any delivery method such as a configuration in which the base films 11A and 11B are intermittently delivered can be applied.

The tape supply unit 52 detachably attaches a tape take-up roll 521 around which the zipper tape 20 is wound, and sends out the zipper tape 20. The zipper tape 20 fed out is supplied from the side with respect to the direction in which the base films 11A and 11B are fed out, and is bent in a direction in which the base films 11A and 11B are fed out at a predetermined position by a disposed roller or the like. And sent out between the base films 11A and 11B.
The delivery of the zipper tape 20 is not limited to a configuration in which the zipper tape 20 is continuously delivered at a constant speed, and any delivery method such as a configuration in which the zipper tape 20 is intermittently delivered can be applied.

The sleeve member supply mechanism 53 detachably mounts a raw roll 531 around which a sleeve original 301 that is a sleeve member that becomes a pair of sleeve portions 30 is cut out, and feeds the sleeve original 301. The sleeve member supply mechanism 53 includes a blade pressing portion (not shown). In the blade pressing portion, the sleeve thin portion 31 is provided on the sleeve raw fabric 301 fed out. After being folded back, the sleeve original fabric 301 provided with the sleeve thin-walled portion 31 is cut into two pairs of sleeve portions 30 that are band-shaped sleeves. And two pairs of sleeve parts 30 are supplied from the side with respect to the direction in which base film 11A and 11B are sent out. Then, in a state of being superposed one by one by a roller or the like arranged, the base films 11A and 11B are bent at a predetermined position in a direction to be sent out, and sent out between the base films 11A and 11B, respectively. Is done. Here, as the temporary bonding, for example, various methods such as heat sealing, ultrasonic welding, adhesion using an adhesive, and the like can be used, but ultrasonic welding is preferable in view of the configuration of the apparatus.
The delivery of the sleeve portion 30 is not limited to a configuration in which the sleeve portion 30 is continuously delivered at a constant speed, and any delivery method such as a configuration in which the sleeve portion 30 is intermittently delivered can be applied.

  The bag making portion 54 is a pair of seal bars 541 that are engaging member joint portions that heat-seal the male member 21 and the female member 22 of the zipper tape 20 fed from the tape supply portion 52 to the base film 11A, 11B, respectively. A pair of seal bars (not shown) that are sleeve joints for heat-sealing the pair of sleeve portions 30 fed from the sleeve member supply mechanism 53 to the base films 11A and 11B, respectively, and a male portion 21B of the zipper tape 20 and A blade pressing portion (not shown) provided with an engaging thin portion 24 on the female portion 22B, a top seal bar 543 that forms the top seal portion 13 on the overlapping base films 11A and 11B, and a side seal on the overlapping base films 11A and 11B The portion 12 is formed, and the sleeve portion 30 is formed on the base films 11A and 11B. If, the side sealing bars 544 is a film joint for heat-sealing for example, includes a first cut portion 545 and the second cutting section 546 cuts out the zipper tape attached bag 1A, and the like.

In addition, the blade pressing part which provides the engagement thin part 24 in the zipper tape 20 is not limited to the case where it is provided in the bag making part 54, but is provided in the tape supply part 52, for example, and sends out the zipper tape 20 between the base films 11A and 11B. You may make it form the engagement thin part 24 previously.
Further, the side seal bar 544 for heat-sealing the pair of sleeve portions 30 to the base film 11A, 11B is not limited to the configuration in which the sleeve portion 30 is heat-sealed together with the side seal portion 12, but the side seal bar 544 is You may seal using a separate sealing bar. Moreover, it is good not only when heat-sealing the whole surface of the sleeve part 30, but it is good also as a structure which heat-seals only a periphery, a structure which heat-seals a periphery and a center part, etc., for example.

The base films 11A and 11B and the male member 21 and the female member 22 can be joined not only by heat sealing but also by various methods such as ultrasonic welding and bonding using an adhesive. The same applies to the bonding between the base films 11A and 11B and the pair of sleeve portions 30.
And as a next process of the manufacturing apparatus 5, the filling apparatus (not shown) which fills the to-be-packaged goods P in the formed bag 1A with a zipper tape is provided.

(Manufacturing method of bag with zipper tape)
Next, the manufacturing method which manufactures the bag 1A with a zipper tape before accommodating the to-be-packaged goods P of the bag body 1 with a zipper tape using the said manufacturing apparatus 5 is demonstrated with reference to drawings.

  A manufacturing method of the zipper tape-attached bag 1A is manufactured using, for example, a three-side bag manufacturing apparatus 5 shown in FIG. 6, and includes a film supply process for supplying the film 11, a tape supply process for supplying the zipper tape 20, and a pair. A sleeve supplying step for supplying the sleeve portion 30, a tape attaching step for heat-sealing the male member 21 and the female member 22 to the base film 11A, 11B, respectively, and a male portion 21B and a female portion 22B of the zipper tape 20, A ruled line forming step for providing the engaging thin portion 24, a bag making step for forming the zipper tape-attached bag 1A from the base film 11A, 11B, and the like are performed.

First, the film take-up roll 111 around which the film 11 is wound is mounted on the film supply unit 51.
Further, the female member 22 and the male member 21 are formed by extrusion molding or the like. Then, the female portion 22B of the female member 22 and the male portion 21B of the male member 21 are engaged and wound as a single zipper tape 20 around the tape take-up roll 521, and the tape take-up roll 521 is wound around the tape supply portion 52. Wear it.
Further, a raw roll 531 around which the sleeve original 301 is wound is mounted on the sleeve member supply mechanism 53.

  And in a film supply process, the film 11 is cut | disconnected so that the film 11 supplied from the film winding roll 111 may be bisected in the direction which cross | intersects with respect to the delivery direction of the film 11 with a cutting blade. By this cutting, the base films 11A and 11B are cut out, overlapped, and sent downstream.

Further, in the tape supply process, the zipper tape 20 drawn out from the tape take-up roll 521 is sent out between the base film 11A, 11B which is overlapped and sent out in the film supply process.
Further, in the sleeve supplying step, the sleeve thin film portion 31 is provided between the fed base films 11A and 11B while the sleeve raw fabric 301 drawn from the raw fabric roll 531 is being fed, and the sleeve thin portions 31 are folded and folded to provide two pairs of sleeve portions 30. Disconnect. The two pairs of sleeve portions 30 thus cut are sent out one by one to a predetermined position between the sent base films 11A and 11B, and temporarily joined to the base films 11A and 11B.

In the tape attaching step, the male member 21 and the female member 22 are heat sealed to the one base film 11A, 11B by the seal bar 541, respectively.
In the ruled line forming step, a blade pressing part, which is a weakly formed part (not shown), is pressed at predetermined positions on the male part 21B and female part 22B of the zipper tape 20 to provide engagement thin-walled parts 24 each having a line shape. .

In the bag making process, the top seal part 13 is formed by the top seal bar 543 on the base film 11A, 11B to which the male member 21 and the female member 22 and the pair of sleeve parts 30 are attached in the attaching process. Further, a pair of side seal portions 12 are formed by the side seal bar 544, and the sleeve portion 30 is heat sealed to the base film 11A, 11B. Thereafter, the bag body 10 to which the zipper tape 20 and the pair of sleeve portions 30 are attached is made, and the zipper tape-attached bag 1A is manufactured.
The obtained zipper tape-attached bag 1A is provided with a bottom seal portion 14 at the edge of the charging port after the packaged material P is loaded from a loading port (not shown) that is opened in the next filling step. The inlet is sealed. By this filling process, the bag body 1 with a zipper tape which accommodated the to-be-packaged goods P is obtained.
Note that the bag portion with zipper tape 1A has no sleeve portion 30 at the edge on the inlet side, and therefore the bag body 10 at this position has low rigidity. It is possible to easily throw in the object P.

{Use of bag with zipper tape}
Next, the use situation of the bag body 1 with the zipper tape will be described with reference to the drawings.
FIG. 7 shows a cross-section in an opened state at the position of the sleeve portion of the bag body with a zipper tape.

First, when the user first takes out the article P to be packaged from the bag body 1 with zipper tape, the base film 11A, 11B is torn from the notch 17 and the top seal portion 13 side is cut off, which is not shown. An opening is formed and opened.
Thereafter, the user places, for example, a thumb and a middle finger at the positions of the pair of displays 18 provided on the bag body 10. Then, according to the display 18, a pressing force is applied in the direction of narrowing the longitudinal direction from both longitudinal ends of the zipper tape 20, that is, a pressing force is applied in the width direction of the bag body 10 so as to narrow the space between the thumb and the middle finger.
With this pressing force, the pair of sleeve portions 30 compete with each other on the surfaces facing each other, and as shown in FIG. 7, the pair of sleeve portions 30 is bent so as to be bent at the position of the sleeve thin portion 31 having low rigidity.

The bag body 10 is in a state in which the space between the base films 11 </ b> A and 11 </ b> B is expanded from a position corresponding to the sleeve thin portion 31 so as to swell in a rectangular tube shape from the inside by a pair of bent sleeve portions 30.
Accordingly, the male member 21 and the female member 22 of the zipper tape 20 are also located on the side of the storage space 10C of the bag body 10 at the position corresponding to the beginning of spreading between the base films 11A and 11B, that is, the position of the engaging thin portion 24. A pressing force acts so that it can be spread from. Therefore, the first male claw 21B1 having a mountain-shaped cross section of the male part 21B gets over the first female claw 22B1 of the female member 22 and is engaged with a relatively small force from the position of the engaging thin part 24. The engagement begins to be disengaged, the engagement of the engaging portion 23 is released, and the storage space 10C is released.
And after taking out or storing the to-be-packaged goods P, the bag main body 10 is resealed by engaging the male part 21B and the female part 22B again.
Note that the engagement of the engaging portion 23 can be released by a normal opening method in which the opening edge of the bag body 10 is picked and opened from the opening side.

[Effect of the embodiment]
As described above, in the above-described embodiment, the engaging thin portion 24 that lowers the rigidity is provided in the engaging portion 23 of the zipper tape 20, and the sleeve portion 30 that has higher rigidity than the male side belt-like base portion 21A and the female side belt-like base portion 22A. In addition, a thin sleeve portion 31 for reducing the rigidity is provided.
Therefore, when a pressing force is applied to the bag body 10, the sleeve portion 30 is bent at the sleeve thin portion 31, and the engagement portion 23 starts to be bent at the engagement thin portion 24 in response to the bending of the sleeve portion 30. As a result, the engagement is released. Therefore, the engagement part 23 can be easily disengaged, and the bag body 1 with a zipper tape can be easily opened with one hand.

And in the said embodiment, the male part 21B uses the zipper tape 20 which has the 1st male side nail | claw 21B1 of the cross-sectional mountain shape, and the 2nd male side nail | claw 21B2 of a cross-section hook shape, and the 1st male side claw 21B1 uses the zipper tape 20 In contrast, the bag body 10 is provided so as to protrude toward the storage space 10 </ b> C, which is the side where the sleeve portion 30 is located.
For this reason, when a pressing force is applied to the bag body 10, the first male claw 21B1 is disengaged so as to get over the first female claw 22B1, so the engagement release of the engagement portion 23 by one hand is small. It can be done with pressing force and can be opened more easily.

Further, in the above-described embodiment, a pair of sheet-like sleeve portions 30 having higher rigidity than the zipper tape 20 are formed so as to face the inner surface of the bag body 10.
For this reason, when a pressing force is applied to the bag body 10, the sleeve portion 30 is bent on the inner surface side of the bag body 10 so as to inflate the bag body 10, and the pressing force is applied to release the engagement portion 23. The bag body 1 with zipper tape can be opened efficiently with one hand.

And in the said embodiment, the sleeve thin part 31 is formed in the linear form along the width direction of the zipper tape 20, especially.
For this reason, when a pressing force is applied to the bag body 10, it can be easily bent at the position of the sleeve thin portion 31, and can be easily formed because of the simple configuration provided in a straight line.

Furthermore, in the said embodiment, the engagement thin part 24 of the zipper tape 20 and the sleeve thin part 31 of a pair of sleeve part 30 are located and provided in the same straight line.
For this reason, when a pressing force is applied to the bag body 10, the sleeve portion 30 and the engagement portion 23 of the zipper tape 20 are bent at the same straight line position, and the engagement portion 23 is pushed to release the engagement. Pressure can be applied efficiently and can be opened easily.

In the above-described embodiment, the engagement thin portion 24 of the zipper tape 20 and the sleeve thin portion 31 of the pair of sleeve portions 30 are provided at the center position in the direction corresponding to the longitudinal direction of the zipper tape 20.
For this reason, when a pressing force is applied to the bag body 10, the pair of sleeve portions 30 and the engaging portion 23 are bent at the center where they are easily bent, and the pressing force is efficiently used to release the engagement portion 23. It works well and can be opened easily.

Further, the engaging thin portion 24 and the sleeve thin portion 31 are formed in a groove shape, in particular, a substantially V-shaped ruled line shape in a side view.
For this reason, the structure for opening easily with one hand can be formed easily, and it can open easily with a simple structure. In particular, since it has a ruled line shape, it is possible to easily obtain a state in which the pair of sleeve portions 30 is bent in a direction away from each other and the bag body 10 is inflated into a rectangular tube shape, and the engagement portion 23 can be easily configured. The engagement can be easily released.

And the position where a pressing force is applied is displayed by the display 18 provided in the bag body 10.
For this reason, it becomes easier to bend a pair of sleeve parts 30 by one-hand operation, and to release engagement of the engaging part 23, and can improve operativity.

[Modification]
Although the best configuration for carrying out the present invention has been disclosed in the above description, the present invention is not limited to this. That is, the present invention has been described primarily with reference to specific embodiments, but with respect to the above-described embodiments without departing from the scope of the technical idea and object of the present invention, the material, quantity, and other details. In this configuration, those skilled in the art can make various modifications.
Accordingly, the description of the materials, layer structures, and the like disclosed above is exemplary for easy understanding of the present invention, and does not limit the present invention. Descriptions with names excluding some or all of the limitations are included in the present invention.
In the description of the above embodiment and the following modifications, the same components are denoted by the same reference numerals, and the description thereof is omitted or simplified.

In the above-described embodiment, the sleeve thin portion 31 is provided at the center of the pair of sleeve portions 30, but is not limited to the center as long as the bag body 10 can be expanded into a tubular shape by bending.
Moreover, although only one is provided, the number is not limited to one.
Further, the present invention is not limited to the case where a pair of sleeve portions 30 are provided.
And although the weakened part was provided in the zipper tape 20 and the sleeve part 30, respectively, the weakened part may be provided only in the zipper tape 20 or only in the sleeve part 30. In the case where it is provided on either one, it is preferably provided on the zipper tape 20. That is, when a pressing force is applied to the bag body 10, the sleeve portion 30 is bent so as to be separated from each other while the engagement is released from the engaging thin portion 24 that is a weakened portion of the zipper tape 20. This is because smooth opening can be obtained as compared with the case where the weakened portion is provided.

Further, the weakened portion of the present invention is not limited to a scribe line shape or a concave groove shape, but is a perforation that is a so-called perforation in which holes are connected in a broken line shape, or a concave portion in a broken line shape. As shown in FIG. 3, the member 32 may be formed with a softer member than other portions.
And it does not restrict to the case where the sleeve thin part 31 is provided in a pair of sleeve part 30. FIG. For example, as shown in FIG. 9 or FIG. 10, the same effect can be obtained by using four sleeve members 30A obtained by cutting the pair of sleeve portions 30 of the embodiment shown in FIG. can get.
Specifically, in the embodiment shown in FIG. 9, the sleeve members 30 </ b> A may be joined to the bag body 10 in a state in which the side edges of the sleeve member 30 </ b> A are in contact with each other to form the sleeve thin portion 31.
On the other hand, in the embodiment shown in FIG. 10, a gap 33 is provided between the side edges of the sleeve member 30 </ b> A to be joined to the bag body 10, and the sleeve thin portion 31 is formed by the gap 33 and the base films 11 </ b> A and 11 </ b> B of the bag body 10. You may make it comprise.

Furthermore, the sleeve portion 30 is not limited to a configuration in which a pair is provided, and may be a flat cylindrical shape or a single member having a flat C shape as shown in FIGS. 11 and 12.
The sleeve portion 30 of the embodiment shown in FIGS. 11 and 12 includes a first sleeve portion 35, a connecting portion 36, and a second sleeve portion 37, and is formed in a flat C shape. Specifically, the sleeve portion 30 includes a first sleeve portion 35 whose width dimension is substantially the same as the distance between the side seal portions 12. The first sleeve portion 35 is provided with connecting portions 36 that are approximately twice as long as the thickness of the first sleeve portion 35 and are folded back in the same direction from both sides of the side seal portion 12. Yes. A second sleeve portion 37 provided in parallel with the first sleeve portion 35 is continuously provided at the folded end edge of the connecting portion 36.
The connecting portion 36 is formed to be thinner than the thickness dimensions of the first sleeve portion 35 and the second sleeve portion 37 in order to facilitate bending.
And the 1st sleeve part 35 is provided with the sleeve thin part 31 similarly to embodiment shown in FIGS. In addition, the pair of second sleeve portions 37 is formed to have a dimension in which a gap 33 is provided between the edges facing each other, and the base film 11B (11A) of the gap 33 and the bag body 10 is formed as in the embodiment shown in FIG. ) Constitutes the thin-walled portion 31 of the sleeve.

Then, as the pressing force acts on the bag body 10, as shown in FIG. 12, the first sleeve portion 35 is bent at the sleeve thin portion 31, and the base film 11B (11A) between the second sleeve portions 37 is bent. Bends. Further, the connecting portion 36 is bent so as to spread over the first sleeve portion 35 and the second sleeve portion 37. Corresponding to these bends, the male member 21 and the female member 22 of the zipper tape 20 are also bent at the position of the engaging thin portion 24, the engagement of the engaging portion 23 is released, and the storage space 10C is opened. .
The embodiment shown in FIGS. 11 and 12 also has the same effect as the above embodiment.
In the embodiment shown in FIG. 11 and FIG. 12, the connecting portion 36 that is thin to facilitate bending at the connecting portion 36 is thin on the outer surface side as in the embodiment shown in FIG. 13 and FIG. A notch may be formed. Furthermore, as a configuration for facilitating bending at the connecting portion 36, a so-called perforation that is a so-called perforation may be provided, or a portion of the connecting portion 36 may be formed by a soft member 32.

Moreover, as a structure which made the sleeve part 30 one member, what was made into flat C shape as shown, for example in FIG. 15 and FIG. 16 may be used.
The sleeve portion 30 of the embodiment shown in FIGS. 15 and 16 includes a pair of first sleeve portions 35 and a connecting portion 36, and is formed in a flat C shape. Specifically, the sleeve portion 30 includes a pair of first sleeve portions 35 whose width dimension is approximately the same as the distance between the side seal portions 12. The pair of first sleeve portions 35 is provided with a connecting portion 36 that is connected so that opposing one edge sides positioned on the side seal portion 12 are folded back.
The connecting portion 36 may be configured to be easily bent.
Further, the first sleeve portion 35 is provided with a sleeve thin portion 31 as in the embodiment shown in FIGS.

When the pressing force is applied to the bag body 10, the first sleeve portion 35 is bent at the sleeve thin portion 31 as shown in FIG. 16, and the connecting portion 36 is between the pair of first sleeve portions 35. Bend to spread. Corresponding to these bends, the male member 21 and the female member 22 of the zipper tape 20 are also bent at the position of the engaging thin portion 24, the engagement of the engaging portion 23 is released, and the storage space 10C is opened. .
The embodiment shown in FIGS. 15 and 16 also has the same effect as the above embodiment.

Furthermore, the sleeve portion 30 may be joined to the outer surface side of the bag body 10 as shown in FIG.
Further, the sheet-like sleeve portion 30 is not limited to being laminated on the bag main body 10, and may be provided in a state of bulging integrally with the inner surface of the bag main body 10 as shown in FIG. 18.
Further, as shown in FIG. 19, the sleeve portion 30 is integrated with one edge side of the male side belt-like base portion 21 </ b> A and the female side belt-like base portion 22 </ b> A of the zipper tape 20, that is, the edge corresponding to the storage space 10 </ b> C side of the bag body 10. The zipper tape body 20A may be provided. In the configuration shown in FIG. 19, the zipper tape body 20 </ b> A may be joined to the base film 11 </ b> A, 11 </ b> B, the joining process can be reduced, and the productivity can be improved.
Furthermore, it is not restricted to the case where the sleeve part 30 is joined to the base film 11A, 11B at the time of bag making. For example, the sleeve 30 after the bag making is formed on the inner surface of the bag with the zipper tape by inserting the sleeve portion 30 through the insertion port and joining it before filling the article P to be packaged. The part 30 may be joined.

Moreover, in the said embodiment, although the display 18 was provided in the bag main body 10, as shown, for example in FIG. 20, even if the operation recessed part 19 which hooks a finger | toe at the position to press is provided for the purpose of improving the workability | operativity of a press. Good. Also in the embodiment shown in FIG. 20, a display 18 that prompts pressing may be provided.
In the above embodiment, the bag body 1 with the zipper tape in which the zipper tape 20 or the zipper tape body 20A is attached to the bag main body 10 has been exemplified. For example, instead of the zipper tape 20, an engagement such as an adhesive tape or a hook-and-loop fastener A member may be used.

Furthermore, in the above embodiment, when manufacturing a bag body with a zipper tape, for example, as shown in FIG. 21, it is preferable to use a sleeve raw fabric 301 provided with a folding groove 301 </ b> A for facilitating folding. As a manufacturing method using this sleeve original fabric 301, for example, a manufacturing apparatus 5 which is a three-way bag making machine as shown in FIG. 22 is used. In addition, description is abbreviate | omitted or simplified about the structure same or equivalent to embodiment shown in the said FIGS.
Specifically, the manufacturing apparatus 5 includes a film supply unit 51, a pair of tape supply units 52, a sleeve member supply mechanism 53 that sends out a pair of sleeve raw fabrics 301, a male member 21, a female member 22, and a pair of sleeves. The part 30 is heat-sealed to the base films 11A and 11B, and a bag making part 54 for forming the bag main body 10 to form a bag 1A with a zipper tape is provided.
The sleeve member supply mechanism 53 includes a weakening forming portion 532 that provides the sleeve thin portion 31 on the sleeve original fabric 301, a folding mechanism portion 533 that folds the sleeve original fabric 301 in the width direction, and a punching hole 301B in the sleeve original fabric. A processing portion 534 for punching and a cutting blade 535 which is a separation portion for separating, for example, cutting the original sleeve 301 into a pair of strip-shaped sleeves are provided.

When making a bag, a tape for heat-sealing the film supply process, the tape supply process, the sleeve supply process for supplying the sleeve original fabric 301, and the zipper tape 20 and the belt-shaped sleeve 302 to the base films 11A and 11B, respectively. An attaching step, a ruled line forming step of providing the engaging thin portion 24 on the male portion 21B and the female portion 22B of the zipper tape 20, and a bag making step of forming the zipper tape-attached bag 1A from the base film 11A, 11B, And so on.
Specifically, the film take-up roll 111 around which the film 11 is wound is mounted on the film supply unit 51.
Moreover, the female member 22 and the male member 21 are each formed by extrusion molding or the like. Then, the female portion 22B of the female member 22 and the male portion 21B of the male member 21 are engaged and wound as an integral zipper tape 20 around the tape take-up roll 521, and the tape take-up roll 521 is wound around the tape supply portion 52. Wear it.
Further, a raw roll 531 around which the sleeve original 301 is wound is mounted on the sleeve member supply mechanism 53.

  And in a film supply process, the film 11 is cut | disconnected so that the film 11 supplied from the film winding roll 111 may be bisected in the direction which cross | intersects with respect to the delivery direction of the film 11 with a cutting blade. By this cutting, the base films 11A and 11B are cut out, overlapped, and sent downstream.

Further, in the tape supply process, the zipper tape 20 drawn out from the tape take-up roll 521 is sent out between the base film 11A, 11B which is overlapped and sent out in the film supply process.
Here, in the tape supply process, the step of providing the engaging thin portion 24 is performed before the feeding between the base films 11A and 11B, so that the apparatus for providing the engaging thin portion 24 interferes with others. This is preferable because it is difficult and the apparatus can be easily constructed. In addition, the process of providing the engagement thin part 24 can also be implemented, for example, after sending out between base film 11A, 11B, and also heat-sealing to base film 11A, 11B.

  Further, in the sleeve supplying step, a crease forming step is provided in which the thin sleeve portion 31 is provided by the weakening forming portion 532 at a predetermined interval, that is, the width dimension of the bag body 10 on the sleeve original fabric 301 having the folding groove 301A. 21 (B)), a folding step (FIG. 21 (C)) in which the sleeve original fabric 301 is folded back in the width direction by the folding groove 301A by the folding mechanism portion 533, and a predetermined interval, that is, a side seal portion, is provided on the sleeve original fabric 301. A processing step (FIG. 21D) for punching a long hole-shaped punching hole 301 </ b> B by the processing portion 534 at the width dimension interval of the bag body 10 at the position 12, and a concave groove for folding the sleeve raw fabric 301. A separation step (FIG. 21E) is performed by cutting with the cutting blade 535 at the position 301 </ b> A and separating it into a pair of belt-like sleeves 302.

Note that the ruled line forming step (FIG. 21B) of the zipper tape 20 can also be performed before or after the tape attaching step described later. In particular, the apparatus can be miniaturized by forming the sleeve thin portion 31 at the same time.
Further, in the folding process (FIG. 21C), it is possible to use various jigs and apparatus configurations as a folding mechanism section, such as folding with a fixed piece or the like, or using a rotating roller, etc. Can be implemented.
In the processing step (FIG. 21D), any processing method capable of removing a part of the sleeve raw fabric 301, such as laser processing, is applicable as the punching processing. The punching hole 301B is formed in the longitudinal direction in the width direction of the belt-like sleeve 302 in a later process, and is formed so that both edges in the width direction of the belt-like sleeve 302 remain so that the fed belt-like sleeve 302 does not extend or cut. Is done. Further, the width dimension of the punching hole 301B is equal to the width dimension for sealing the base film 11A, 11B by the side seal bar 544 in the subsequent film bonding step, or considering the feeding error of the film 11 or the like. It is preferable to form it a little wider.
Furthermore, as the cutting blade 535 in the separation step (FIG. 21E), various blades such as a cutter knife blade and a rotary blade can be used. In particular, by cutting immediately before cutting into the base films 11A and 11B, inconveniences such as misalignment and elongation of the belt-like sleeve 302 can be prevented, a configuration that can be arranged at this position is preferable.
And in a sleeve supply process, a pair of cut | disconnected strip | belt-shaped sleeve 302 is sent out to the predetermined position between the base film 11A, 11B which was sent out in piles one by one.

Thereafter, in the tape attaching step, the zipper tape 20 and the belt-like sleeve 302 are heat-sealed to the base film 11A and 11B by the seal bar 541, respectively.
Note that the step of heat-sealing the zipper tape 20 and the step of heat-sealing the belt-like sleeve 302 may be performed separately using different seal bars.

In the bag making process, the top seal portion 13 is formed by the top seal bar 543. Further, in the bag making process, a film bonding process is performed in which the side seal portion 12 is formed by the side seal bar 544 at each position where the punching hole 301B is provided. Then, in a bag making process, it cut | disconnects in the intermediate position of the side seal part 12, and the cutting process which cuts out the bag 1A with a zipper tape is implemented.
The obtained zipper tape-attached bag 1A is provided with a bottom seal portion 14 at the edge of the charging port after the packaging material P is loaded from an unillustrated charging port that is opened in the next filling step. Is sealed. By this filling process, the bag body 1 with a zipper tape which accommodated the to-be-packaged goods P as shown to FIG. 23, 24 is obtained.

In this bag making method, since the continuous belt-like sleeve 302 is sequentially joined to the base film 11A, 11B, the production efficiency can be improved.
In particular, a punching hole 301B is punched and formed in the sleeve raw fabric 301 in correspondence with the side seal position. For this reason, the amount of the sleeve portion 30 interposed at the position of the side seal portion 12 can be reduced, and the base film 11A, 11B can be favorably heat sealed by the side seal portion 12.

A punching hole 301 </ b> B having a predetermined size and shape is formed in a longitudinal shape in the width direction of the sleeve raw fabric 301.
For this reason, the amount of the sleeve portion 30 interposed at the position of the side seal portion 12 can be greatly reduced, and the belt-like sleeve 302 can be continuously fed out without being cut, and the continuous bag making of the zipper tape-attached bag body 1 is facilitated. it can.

Further, the sleeve thin portion 31 formed in the ruled line forming step is provided between the punched holes 301B formed at a predetermined interval, particularly in the center between the punched holes 301B.
For this reason, the sleeve thin part 31 can be located in the center of the width direction of the sleeve part 30, and when the bag body 1 with a zipper tape is opened, the bending of the sleeve part 30 can be started from the center position and can be easily opened.

Further, after the sleeve blank 301 is folded back in the width direction, a punching hole 301B is formed.
For this reason, as compared with the case where the punching holes 301B are provided in the pair of belt-like sleeves 302, the punching holes 301B can be formed collectively at the corresponding positions, and the manufacturing efficiency can be improved.

Note that, in the processing step, thin wall processing may be performed in the shape of a concave groove instead of the punching hole 301B.
As this thin processing, various methods such as pressing and cutting can be applied.
Furthermore, the shape of the punching hole 301B and the thin wall processing can be appropriately designed, for example, a rectangular shape shown in FIG. 25A or a plurality of hole shapes shown in FIG.

Further, before separating the sleeve original fabric 301 into the pair of belt-like sleeves 302, the sleeve original fabric 301 is folded back in the width direction.
For this reason, the sleeve raw fabric 301 can be easily separated linearly.
Particularly, since the sleeve original fabric 301 is provided with a folding groove 301A at the folding position, the folding can be easily performed.

Then, before the folding process of folding the sleeve original fabric 301 in the width direction, a ruled line forming process for providing the sleeve thin portion 31 is performed.
By providing the sleeve thin portions 31 in the pair of sleeve portions 30 so as to form concave grooves in the opposing direction, the pair of sleeve portions 30 are opposed to each other by the pressing force when opening the bag body 1 with the zipper tape. The sleeve thin portion 31 to be bent can be bent so as to be separated from each other. In order to provide this configuration, the sleeve thin portion 31 may be provided so as to be opposed to each other on the one surface side in the state of the sleeve original fabric 301 in which the opposed state is developed. From this, the sleeve thin portion 31 can be easily formed by one operation on the same surface side of the sleeve raw fabric 301, and the manufacturing efficiency can be improved.

Further, the sleeve original fabric 301 may be separated by cutting the sleeve original fabric 301 into a pair of belt-like sleeves 302 with a rotary blade or the like without folding the sleeve original fabric 301.
Further, the separation is not limited to the case of using a blade, and for example, separation is performed by tearing with a folding groove 301A or a perforated hole provided in the sleeve raw fabric 301 like a so-called perforation. Etc.

And the length dimension L (refer FIG. 23) of the sleeve thin part 31 is provided in the zipper tape 20 side by about half length with respect to the width dimension M of the sleeve part 30. As shown in FIG.
For this reason, similarly to the sleeve part 30 of the embodiment shown in FIGS. 1 to 7, the sleeve part 30 starts to bend on the zipper tape 20 side by the pressing force when opening the bag body 1 with the zipper tape. It becomes a state. As a result, the sleeve 30 is bent and the engagement is disengaged from the engaging thin portion 24 of the zipper tape 20 so that it can be easily opened.
Here, L / M is preferably ¼ or more and 1 or less in terms of openability.
Note that the weakened portion of the present invention is not limited to the case where both the engaging thin portion 24 and the sleeve thin portion 31 are provided, and may be configured to provide at least one of them. In particular, it is preferable to provide the engagement thin portion 24 because the engagement of the zipper tape 20 is easily released by the pressing force when the zipper tape-attached bag body 1 is opened.

DESCRIPTION OF SYMBOLS 1 ......... Bag body with a zipper tape which is a bag body with an engaging member 1A ... Bag with zipper tape which can function also as a bag body with an engaging member 10 ......... Bag main body 10C ... Storage space 11A, 11B ... Base film 20... Zipper tape 20A... Zipper tape body 21A... Male side band base 21B... Male portion 21B1... First male claw 21B2. 21B3: Storage side slope as a slope 21B4, 21B7 ... Tangent line 21B5 ... Perpendicular line 21B6 ... Open side slope as a slope 22A ... Female side belt-like base part 22B ... Female part 22B1 ... First female side claw 22B2 ... First Two female claws 23... Engagement part 24... Engagement thin part 30 as a weak part 30... Sleeve part 31... Sleeve thin part 32 as a weak part 32. ... Soft member as weak part 51 .... Film supply part as film delivery part 52 .... Tape supply part as engagement member delivery part 53 .... Sleeve member supply mechanism 301 as sleeve member delivery part .... ... Sleeve raw material 301A which is a sleeve member ... Recessed groove 301B ... Punching hole 302 ... ... Belt-like sleeve 532 ... ... Weaker forming part 533 ... ... Folding mechanism part 534 ... ... Processed part 535 ... ... Cutting blade 541 which is a separation part ............ Seal bar 544 which functions as an engagement member joint part and a sleeve joint part 544 ...... Side seal bar 546 which is a film joint part ............ Second cutting part P which is a cutting part …… Packaged items α, β… Angle

Claims (30)

A pair of strip bases;
An engaging portion that is provided in series on each of the belt-like base portions and is detachable from each other;
A sheet-like sleeve portion provided continuously on one edge in the width direction of the belt-like base portion,
At least one of the engaging portion and the sleeve portion is provided with a weakened portion along the width direction of the belt-like base portion at an intermediate position in a direction corresponding to the longitudinal direction of the belt-like base portion. A zipper tape body characterized by that. In the zipper tape body according to claim 1,
The said weakening part is provided in the engaging part. The zipper tape body characterized by the above-mentioned. A pair of strip bases;
An engaging portion that is provided in series on each of the belt-like base portions and is detachable from each other
A sheet-like sleeve portion provided continuously on one edge in the width direction of the belt-like base portion,
The engaging portion and the sleeve portion are each provided with a weakened portion along the width direction of the belt-like base portion at an intermediate position in a direction corresponding to the longitudinal direction of the belt-like base portion. Tape body. In the zipper tape body according to any one of claims 1 to 3,
The weakening part is provided in the same straight line. The zipper tape body characterized by the above-mentioned. In the zipper tape body according to any one of claims 1 to 4,
The zipper tape body, wherein the weakening portion is provided at a central position in a direction corresponding to a longitudinal direction of the belt-like base portion. In the zipper tape body according to any one of claims 1 to 5,
The zipper tape body, wherein the weakened portion is a groove-shaped thin portion. In the zipper tape body according to claim 6,
The zipper tape body, wherein the thin-walled portion is formed in a ruled line shape that gradually becomes wider toward the same side as the side where the engaging portion is provided in the belt-like base portion. In the zipper tape body according to any one of claims 1 to 7,
The weakened portion is a plurality of holes or concave portions that are continuous in a broken line shape. In the zipper tape body according to any one of claims 1 to 8,
The engaging portion includes a male portion and a female portion,
The male portion has a first male claw protruding to the side where the sleeve portion is provided with respect to the belt-like base, and a second male claw protruding to the opposite side of the first male claw. And
The female portion has a first female claw that can be engaged with the first male claw and a second female claw that can be engaged with the second male claw,
The first male claw has an inclined surface facing the belt-like base provided with the male part, and an angle α formed by a tangent to the slope and a perpendicular of the belt-like base provided with the male part is 90 °. Formed at a larger angle,
The second male claw has a slope facing the band-shaped base provided with the male part, and an angle β formed by a tangent to the slope and a perpendicular of the band-shaped base provided with the male part is 90 °. A zipper tape body characterized by being formed at a smaller angle. In the zipper tape body according to any one of claims 1 to 9,
The said weakening part is provided in the linear form along the width direction of the said strip | belt-shaped base part. The zipper tape body characterized by the above-mentioned. A bag body having a storage space capable of storing an article to be wrapped;
A band-shaped engagement member which is joined to the inner surface of the bag body and forms a pair capable of engaging with each other;
A sleeve portion provided on the bag body on the storage space side from the engagement member,
The engaging member and the sleeve portion are each provided with a weakened portion along the width direction of the engaging member at an intermediate position in a direction corresponding to the longitudinal direction of the engaging member. A bag body with an engaging member. A bag body having a storage space capable of storing an article to be wrapped;
A band-shaped engagement member which is joined to the inner surface of the bag body and forms a pair capable of engaging with each other;
A sleeve portion provided on the bag body on the storage space side from the engagement member,
At least one of the engagement member and the sleeve portion is provided with a weakened portion along the width direction of the engagement member at an intermediate position in a direction corresponding to the longitudinal direction of the engagement member. A bag body with an engaging member. In the bag with an engagement member according to claim 12,
The weakened portion is provided at least in the engaging portion. A bag body with an engaging member. In the bag with an engagement member according to any one of claims 11 to 13,
The engaging member is a zipper tape including a pair of band-shaped base portions that are respectively joined to the inner surface of the bag main body, and an engagement portion that is provided in series on the band-shaped base portion and can be engaged with and disengaged from each other. A bag body with an engaging member. In the bag with an engagement member according to claim 14,
The engaging portion includes a male portion and a female portion,
The male part has a first male claw protruding to the storage space side and a second male claw protruding to the opposite side of the first male claw,
The female portion has a first female claw that can be engaged with the first male claw and a second female claw that can be engaged with the second male claw,
The first male claw has an inclined surface facing the belt-like base provided with the male part, and an angle α formed by a tangent to the slope and a perpendicular of the belt-like base provided with the male part is 90 °. Formed at a larger angle,
The second male claw has a slope facing the band-shaped base provided with the male part, and an angle β formed by a tangent to the slope and a perpendicular of the band-shaped base provided with the male part is 90 °. A bag with an engagement member, characterized in that the bag is formed at a smaller angle. In the bag with an engagement member according to any one of claims 11 to 15,
The sleeve portion is formed in a sheet shape having a higher rigidity than the engagement member, and is formed in a pair so as to face the inner surface of the bag body. In the bag with an engagement member according to any one of claims 11 to 16,
The weakened portion is provided on the same straight line. A bag body with an engagement member, wherein the weakened portion is provided on the same straight line. In the bag with an engagement member according to any one of claims 11 to 17,
The weakened portion is provided at a central position in a direction corresponding to the longitudinal direction of the engaging member. In the bag with an engagement member according to any one of claims 11 to 18,
The weakened portion is a groove-shaped thin-walled portion. In the bag with an engagement member according to claim 19,
The thin-walled portion is formed in a ruled line shape that gradually becomes wider toward surfaces of the engaging member that engage with each other. In the bag with an engagement member according to any one of claims 11 to 20,
The weakened portion is a plurality of holes or concave portions that are continuous in a broken line shape. In the bag with an engagement member according to any one of claims 11 to 21,
The weakened part is provided in a straight line shape along the width direction of the engaging member. A bag body having a storage space capable of storing an article to be wrapped;
The zipper tape body according to any one of claims 1 to 10, which is joined to an inner surface of the bag body,
The zipper tape body is a bag body with an engagement member, characterized in that the sleeve portion is joined to the housing space side with respect to the engagement portion. A bag body having a storage space configured of at least one film and capable of storing an object to be wrapped;
A band-shaped engagement member which is joined to the inner surface of the bag body and forms a pair capable of engaging with each other;
A manufacturing method for manufacturing a bag body with an engagement member, comprising: a sleeve portion provided on the bag body on the storage space side of the engagement member;
Sending the film in an overlapping manner;
Delivering the engagement member;
Feeding the strip-shaped sleeve member;
Separating the sleeve member into a pair of belt-like sleeves at an intermediate position in the width direction;
Forming a weakened portion in at least one of the engagement member and the sleeve member or the belt-like sleeve;
Punching or thinning at predetermined intervals in the delivery direction of the sleeve member or the strip-shaped sleeve; and
Bonding a pair of strip-shaped sleeves provided with the punching or thin-wall processing to the overlapping films;
Bonding the engaging member to the overlapping film;
Bonding the film in which the belt-like sleeve and the engagement member are joined and overlapping at the punched or thinned position;
And a step of cutting at a position where the film is joined. A method for producing a bag with an engaging member. In the manufacturing method of the bag with an engagement member according to claim 24,
In the step of forming the weakened portion on the sleeve member or the belt-shaped sleeve, the weakened portion is formed between the positions where the punching or thinning process is performed. Production method. In the manufacturing method of the bag with an engagement member according to claim 24 or claim 25,
Before the step of separating the sleeve member into a pair of belt-like sleeves, a step of folding the sleeve member in the width direction is performed. In the manufacturing method of the bag with an engagement member according to claim 26,
A method of manufacturing a bag body with an engagement member, wherein the sleeve member is provided with a folding groove at the center in the width direction. In the manufacturing method of the bag member with an engagement member according to claim 26 or claim 27,
When forming a weakened part in the said sleeve member, it implements before implementing the process of turning back the said sleeve member in the width direction. The manufacturing method of the bag body with an engagement member characterized by the above-mentioned. In the manufacturing method of the bag member with an engagement member according to any one of claims 26 to 28,
After the step of folding the sleeve member, the step of punching or thinning is performed. A bag body having a storage space configured of at least one film and capable of storing an object to be wrapped;
A band-shaped engagement member which is joined to the inner surface of the bag body and forms a pair capable of engaging with each other;
A manufacturing apparatus for manufacturing a bag body with an engagement member, comprising: a sleeve portion provided on the bag body on the side of the storage space from the engagement member;
A film sending section for sending the film in an overlapping manner;
An engagement member delivery section for delivering the engagement member;
A sleeve member delivery section for delivering a belt-shaped sleeve member;
A separation part for separating the sleeve member into a pair of belt-like sleeves at an intermediate position in the width direction;
A weakening portion that forms a weakening portion on at least one of the engagement member and the sleeve member or the belt-like sleeve;
A processing section for punching or thinning at a predetermined interval in the delivery direction of the sleeve member or the belt-shaped sleeve;
A sleeve joint for joining the pair of strip-shaped sleeves provided with the punching or thin-wall processing to the overlapping films;
An engagement member joint for joining the engagement member to the overlapping film;
A film joining portion that joins the overlapping film by joining the belt-shaped sleeve and the engaging member at the punched or thinned position;
And a cutting part that cuts at the position where the film is joined.

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