JP6487257B2 - Zipper tape body and method for producing bag body with zipper tape - Google Patents

Description

The present invention relates to a method for producing a zipper tape body you good beauty di Ppatepu with a bag.

  2. Description of the Related Art Conventionally, various packages with zipper tape attached to packages for packaging medicines and foods are known. In such a package with a zipper tape, a configuration in which an opening tape is provided on the opening side of the zipper tape is known (for example, see Patent Document 1).

  The thing of patent document 1 is a package which is provided in the opening side rather than a zipper tape, and tears the edge of the opened opening in a step shape and is opened. In this package, two parallel rims are provided on the inner side surface of the opening of the film in the width direction of the bag, a thick belt portion is provided in parallel between the rims, and a notch is formed corresponding to the thick belt portion. It is arranged. At the time of opening, tearing from the notch is guided between the bead and the thick-walled portion and opened along the assumed line.

JP 2009-23668 A

However, in the package as described in Patent Document 1, since the thick band portion is located at a position where the bag body is opened linearly from the notch of the bag body, it becomes a resistance in the thick band portion at the time of opening, The straight opening feeling is impaired. Moreover, it is difficult to provide a bead and a thick band part on a film, and improvement of productivity is desired.
Is an object of the present invention to provide a method of manufacturing a structure is easily obtained zipper tape body you good beauty di Ppatepu with a bag to facilitate the opening.

The zipper tape body of the present invention is a male member having a male band base and a male part provided on the male band base, a female band base, and the male part provided on the female band base. a zipper tape but with a female member having an engageable female portion, one end side in the width direction of the male-side strip-like base portion and the female-side strip-like base portion, and a connecting member that will be releasably connected respectively, wherein Each of the male side belt-like base and the female side belt-like base is connected in parallel to the male side belt-like base or the female side belt-like base via the connection member. The band-shaped member and the male-side band-shaped base and the female-side band-shaped base are provided with a thick region on one end side in the width direction that is thicker than the thickness dimension of the male-side band-shaped base and the female-side band-shaped base, The strip-shaped member is the thick region. The connecting member is formed in the same thickness dimension as the thickness dimension, and the connecting member has the male band base and the female base so that both sides of the thick region and the band member are the same in the thickness direction. A side belt-like base and the belt-like member are connected .

In the present invention, since the zipper tape and the belt-like member are integrated, the film is bonded between the zipper tape and the belt-like member by joining the film and peeling the connecting member from the zipper tape and the belt-like member to form a bag. An opening position is formed in which only the cutting is performed with a small force. For this reason, the structure which can be opened with small force at the time of opening can be manufactured easily.
Here, as the peeling, for example, an interface peeling or a structure that peels by cohesive failure can be applied.
Moreover, as a connection member, it can be set as any form which connects a zipper tape and a strip | belt-shaped member so that peeling is possible, such as tape shape and string shape.
And arranging in parallel includes not only in parallel but also includes, for example, a configuration in which the belt is inclined obliquely or a strip-shaped member is provided in a discontinuous broken line shape.
Further, in the present invention, by providing a thick region on one end side in the width direction of the male side band-shaped base and the female side band-shaped base, after the film is cut and opened between the zipper tape and the band-shaped member after bag making The thick region is located in the vicinity of the opening edge. As a result, the thick region functions as a slip stopper during the opening operation, and the opening operation is facilitated.
Furthermore, in this invention, by making the thick region and the band-shaped member have the same thickness dimension, the surface to be pressed when the male side band-shaped base and the female side band-shaped base and the band-shaped member are joined to the film to make a bag. Are on the same plane. As a result, bonding can be performed with one operation using a single jig, and bag making can be easily performed.
Here, the same thickness dimension is not limited to the completely same thickness dimension, and includes those having substantially the same thickness dimension including errors.

Further, in the present invention, the male side belt-like base and the female side belt-like base are protruded in the vicinity of the end opposite to the one end side where the thick region is provided, with the same thickness as the thick region. It is preferable to adopt a configuration in which a shape portion is provided.
In this invention, by providing a convex portion having the same thickness dimension as the thick region on the side opposite to the one end where the thick region is provided, both ends of the male side strip base and the female side strip base in the width direction are provided. The thickness dimension on the side is the same. As a result, when the male side belt-like base and the female side belt-like base are joined to the film to make a bag, the surfaces pressing the both ends of the male side belt-like base and the female side belt-like base become the same surface, so The male side belt-like base and the female side belt-like base can be joined to the film by one operation using the tool, and bag making can be facilitated.
Note that the same thickness dimension is not limited to be completely the same as described above.
And the vicinity of the end includes the end on the opposite side to the one end provided with the thick region in the male side strip base and the female side strip base, and the position where the male part or the female part is provided from this end It means between.

Further, in the present invention, at least one of the male side band-shaped base and the female side band-shaped base is formed on the surface opposite to the side where the male part or the female part is provided. It can be set as the structure provided between the position in which the female part was provided, and the one end edge of the side in which the said strip | belt-shaped member is located, and the non-joining area | region which is not joined to a film.
In this invention, by providing a non-joining area that is not joined to the film between the position where the male part or the female part is provided and one end edge on the belt-like member side, the male side belt-like base part provided with the non-joining area or Since the female side band-shaped base is bonded to the film and the male side band-shaped base and the female side band-shaped base after bag making are not bonded to the film in the non-bonded area, the male side band-shaped base and the female side band-shaped base are centered on the non-bonded area. It becomes easy to bend. Accordingly, since the engagement between the male part and the female part is released after opening, the finger of the opening person can easily enter the edge opened by opening, and the opening operation is facilitated.
Here, as the non-bonding region, for example, in addition to a series of concave grooves along the longitudinal direction of the zipper tape, a non-continuous concave groove is provided in a broken line, or simply a male band base or female side You may make it an area | region which does not join a strip | belt-shaped base part to a film. Furthermore, the configuration is not limited to the configuration provided in parallel to the male portion or the female portion, but may be a configuration provided in parallel to the male portion or the female portion, such as a waveform.

The manufacturing method of the bag body with a zipper tape of the present invention includes a step of bonding the zipper tape body of the present invention to at least one film, and a step of peeling the connecting member of the zipper tape body from the zipper tape and the belt-shaped member And a step of bag-making a film to which the zipper tape and the belt-like member are joined.
In the present invention, the zipper tape body of the present invention in which the zipper tape and the belt-like member are integrated is joined to a film, and the connecting member of the zipper tape body is peeled from the zipper tape and the belt-like member to make a bag. By this, the bag body with a zipper tape in which the opening position which cuts only a film between zipper tape and a strip | belt-shaped member and is opened with a small force was comprised can be manufactured easily.

And in this invention, it is preferable to set it as the structure which further implements the process of planarizing the said zipper tape and the said strip | belt-shaped member at predetermined intervals.
In this invention, it is possible to prevent inconvenience such as inflow of resin into the inside of the bag body by joining the films in the flattened region to form a bag. Can be joined with high sealing performance.
Here, as the flattening of the zipper tape, for example, a hole in which a part of the male part and the female part is punched out at a predetermined interval by a predetermined press die or the like, and a part of the male part and the female part are scraped off. It can be illustrated. Moreover, as planarization of a strip | belt-shaped member, shaving off so that a thickness dimension may become thin can be illustrated. Then, by reducing the volume by forming or scraping holes, it is possible to prevent the resin from flowing into the inside of the bag body when the films are joined together including the position flattened during bag making.

Further, in the present invention, the step of bag-making the film includes the step of forming the male belt-like base portion and the female side belt-like base portion with one peripheral edge of the bag body made from the film, and the belt-like shape. It is preferable that the step of providing the weakening portion is performed between the member and the region where the one peripheral edge of the bag body intersects.
In this invention, by carrying out the step of providing the weakened portion in the bag body, it becomes easy to cut the film from the formed weakened portion to between the male belt-like base portion and the female-side belt-like base portion and the belt-like member. Therefore, a bag body with a zipper tape that can be easily opened can be easily manufactured by a simple method of providing a weakened portion.
Here, as the weakened portion, for example, a notch that is a so-called notch, a thin-walled formation compared to other portions, a perforation that is a broken-line hole, or a member that is softer and easier to cut than other portions, The part where the rigidity is weakened so that the film can be cut at the part.

The top view which shows the bag body with a zipper tape which concerns on 1st embodiment of this invention. VV sectional drawing in FIG. The perspective view which shows schematic structure of the manufacturing apparatus which manufactures the said bag body with a zipper tape. Sectional drawing which shows a zipper tape body. Sectional drawing explaining the opening condition of the said bag body with a zipper tape. Sectional drawing which shows the bag body with a zipper tape which concerns on 2nd embodiment of this invention. Sectional drawing which shows a zipper tape body. Sectional drawing explaining the opening condition of the said bag body with a zipper tape. The perspective view which shows schematic structure of the manufacturing apparatus which manufactures the bag body with a zipper tape which concerns on 3rd embodiment of this invention. Sectional drawing which shows the zipper tape body which concerns on other embodiment of this invention. Sectional drawing which shows the zipper tape body which concerns on other 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.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, as a bag body with a zipper tape, a bag body that wraps various articles such as foods, medicines, medical products, stationery, and miscellaneous goods is exemplified, but the present invention is not limited thereto.
[First embodiment]
{Configuration of bag body with zipper tape}
As shown in FIGS. 1 and 2, the bag body 1 with a zipper tape includes a bag body 10, a zipper tape 20 bonded to the inner surface of the bag body 10, for example, heat-sealed, and a pair of band-shaped members 30. Yes.

(Bag body configuration)
In the bag body 10, two base film 11, which is a film, is overlapped, and a pair of side seal portions 12 and a bottom seal portion 13 are formed on both overlapping edges.
In the bag body 10, the overlapping edge on the side opposite to the bottom seal portion 13 becomes the edge of the opening 14 to which the zipper tape 20 is attached, and the storage space 15 for storing the packaged object is defined inside. The edge of the opening 14 is sealed by forming a top seal portion after a packaged object (not shown) is accommodated.

  Further, in the bag body 10, the position where both ends of the zipper tape in the longitudinal direction intersect with the peripheral edge of the side seal portion 12 of the bag main body 10 intersects with the belt-shaped member 30 and the peripheral edge of the side seal portion 12 of the bag main body 10. A notch 16 is formed as a weakened portion between the position and the position where it is to be cut.

As the base film 11, for example, a single-layer or multi-layer film formed of a thermoplastic resin such as (linear) low density polyethylene (LLDPE) or polypropylene (polypropylene: PP) is used. it can. Multi-layer films include biaxially stretched polypropylene (Oriented Polypropylene: OPP), biaxially stretched polyethylene terephthalate (OPET), biaxially stretched nylon (ONy), cast polypropylene (Cast Polypropylene: CPP), etc. Can be used. 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.
In addition, the base film 11 is not particularly limited as long as it is a packaging bag material. For example, the thickness is preferably 10 μm or more. If the thickness dimension is less than 10 μm, the seal strength and bag strength may be weakened.

(Configuration of zipper tape)
The zipper tape 20 includes a male member 21 and a female member 22 as shown in FIGS.
The male member 21 has a male side belt-like base portion 21A formed in a longitudinal belt shape, and a male portion 21B provided on the male side belt-like base portion 21A so as to protrude in a cross-sectional shape along the longitudinal direction.
Further, the male side belt-like base portion 21A is provided with a male side concave groove 21A3 which is a concave groove as a non-joining region along the longitudinal direction on the surface opposite to the surface from which the male portion 21B protrudes.
Then, the male member 21 has the male side groove 21A3 positioned on the opening 14 side along the opening 14 of the bag body 10 so that both end sides in the width direction of the male side belt-like base 21A are on the bag body 10. Joined and attached.

The female member 22 includes a female-side belt-like base portion 22A formed in a longitudinal belt shape, and a female portion 22B that is provided to project along the longitudinal direction of the female-side belt-like base portion 22A and from which the male portion 21B can be engaged and disengaged. ing.
The female-side belt-like base portion 22A is provided with a female-side groove 22A3 that is a groove as a non-joining region along the longitudinal direction on the surface opposite to the surface from which the female portion 22B protrudes.
The female member 22 is attached along the opening 14 of the bag body 10 such that the female groove 22A3 is positioned on the opening 14 side and both ends in the width direction are joined to the bag body 10. Yes.

The strip-shaped member 30 is formed in a strip shape having the same thickness as the male-side thick region 21A1 and the female-side thick region 22A1.
And the strip | belt-shaped member 30 is located in the opening part 14 side with respect to the male member 21 and the female member 22, and is respectively attached to the bag main body 10 in parallel through the gap | interval.

The zipper tape 20 and the pair of strip members 30 are formed using, for example, a polyolefin-based resin. In addition, you may form the zipper tape 20 so that it may have the shape shape-retaining property which hold | maintains the state by bending with respect to a longitudinal direction, and the opening of the opening part 14 is maintained.
As the polyolefin resin, for example, polyethylene resins such as low density polyethylene or linear low density polyethylene, and polypropylene resins are preferable. In particular, polypropylene resins that are difficult to stretch are preferred. As the polypropylene resin, homopolypropylene (H-PP), block polypropylene (B-PP), random polypropylene (R-PP), propylene-ethylene-butene 1 random terpolymer can be used.
The belt-like member 30 and the zipper tape 20 may be the same resin composition or different resins.

{Manufacture of bags with zipper tape}
Next, the production of the bag body 1 with the zipper tape will be described.
In addition, various methods are employable for manufacture of the bag body 1 with a zipper tape.

(manufacturing device)
FIG. 3 is a schematic perspective view showing an apparatus for manufacturing the bag body 1 with a zipper tape. FIG. 4 is a cross-sectional view showing a zipper tape body.
The manufacturing apparatus 5 shown in FIG. 3 is based on a so-called three-way bag making machine, and is based on the zipper tape body 2 in which the male member 21 and the female member 22 of the zipper tape 20 and the belt-like member 30 are integrated. It is bonded to the material film 11 to make a bag.
Here, as shown in FIG. 4, the zipper tape body 2 has an integrated configuration in which the male member 21 and the female member 22 of the zipper tape 20 and the belt-like member 30 are connected in series so as to be peelable by the peeling tape 2 </ b> A. .

Specifically, the zipper tape body 2 includes a male material 20A and a female material 20B.
The male material 20A has a male side band-shaped part 20A1 formed in a longitudinal band shape and a male part 21B provided on the male side band-shaped part 20A1 along the longitudinal direction.
The male side belt-like portion 20A1 is formed in a longitudinal band shape and the male side belt-like base portion 21A from which the male portion 21B projects, and one end edge in the width direction of the male side belt-like base portion 21A, that is, the male portion 21B in the male side belt-like base portion 21A. The width of the peeling tape 2A as a connecting portion where one end side in the width direction is releasably joined to the surface on the side from which the male portion 21B protrudes at one end edge on the side where the male groove 21A3 is provided. On the other end side in the direction, a male side belt-like member 30A having the same thickness as the male side belt-like base portion 21A that is detachably joined to the side to which the male side belt-like base portion 21A is joined is provided.

The female member 20B has a female side belt-like portion 20B1 formed in a longitudinal belt shape and a female portion 22B provided in the female side belt-like portion 20B1 along the longitudinal direction.
The female band-shaped portion 20B1 is formed of a male band-shaped base portion 22A that is formed in a longitudinal band shape and from which the female portion protrudes, and one end edge in the width direction of the male-side band-shaped base portion 22A, that is, female portion 22B in the female-side band-shaped base portion 22A. The other end side in the width direction of the peeling tape 2A, and the other end side in the width direction of the peeling tape 2A, one end side in the width direction joined to one end edge on the side provided with the side groove 22A3 so that the female portion 22B protrudes from the surface In addition, a female side belt-like member 30B having the same thickness as the female side belt-like base portion 22A that is detachably joined to the side to which the female side belt-like base portion 22A is joined is provided.

  Here, 2 A of peeling tapes are formed in strip | belt shape, for example with resin, such as a polypropylene. In particular, a material different from the zipper tape 20 and the belt-like member 30 (30A, 30B) is preferable because it is easy to peel off. The release tape 2A has one end side in the width direction joined to the male side thick region 21A1 or the female side thick region 22A1 so as to be capable of interfacial peeling or delamination, and the other end side in the width direction is a belt-like member 30 (30A, 30B). Are joined to each other so as to be capable of interfacial peeling or delamination, and the male member 21 and female member 22 of the zipper tape 20 and the belt-like member 30 are integrally connected.

The manufacturing apparatus 5 includes a pair of tape delivery devices 51 that sends out the zipper tape body 2 with which the male portion 21B and the female portion 22B are engaged, a flattening portion 52 that flattens the zipper tape 20 and the belt-like member 30, and The zipper tape body 2 is cut at the male side thin region 21A4 and the female side thin region 22A4 and separated into the zipper tape 20, the male side strip member 30A and the female side strip member 30B, the zipper tape 20 and the strip shape. A member 30 (30A, 30B) is heat-sealed to the base film 11, and a bag making apparatus 54 for forming the bag body 1 with a zipper tape from the base film 11 is provided.
In addition, although the arrangement position of the flat part 52 and the separation part 53 may be back and forth with respect to the delivery direction of the zipper tape body 2, the separated zipper tape 20 and the strip-like member are separated even if tension is applied during delivery. In order to prevent 30 (30A, 30B) from extending, it is preferable to have a structure in which the surface is flattened before separation.

The tape delivery device 51 detachably attaches a tape take-up roll 511 around which the zipper tape body 2 engaged with the male member 21 and the female member 22 is engaged, and sends out the zipper tape body 2.
The delivery of the zipper tape body 2 is not limited to a configuration in which the zipper tape body 2 is continuously sent out at a constant speed, and any delivery method such as a configuration in which the zipper tape body 2 is intermittently sent out can be applied.
FIG. 3 shows only one of the pair of tape delivery devices 51 for convenience of explanation.

The flattening part 52 flattens the zipper tape 20 and the strip-shaped member 30 at a predetermined interval.
Specifically, using a press die, punching is performed at the positions of the male portion 21B and the female portion 22B of the zipper tape body 2 to form punching holes (not shown), and at the male side belt-like member 30A and the female side belt-like member 30B, Also, a band-side punching hole (not shown) is formed by punching at a corresponding position, that is, a position aligned in the width direction of the zipper tape body 2 with respect to the punching hole.

  The separation part 53 is for separating the separation tape 2A of the zipper tape body 2 to separate it into the zipper tape 20 and the belt-like member 30 (30A, 30B). For example, the end portion of the separation tape 2A is previously separated and the zipper tape body is separated. 2 is installed in the manufacturing apparatus 4 and is peeled sequentially by conveying the zipper tape body 2 using a roller or a plate.

The bag making apparatus 54 positions the base film 11 fed from the film take-up roll 111 and the zipper tape 20 and the strip-shaped member 30 (30A, 30B) fed from the tape feeding apparatus 51 and flattened and separated. A positioning guide portion (not shown), a pair of seal bars 541 for heat-sealing the zipper tape 20 and the strip-shaped member 30 (30A, 30B) to the base film 11, a bottom seal bar 542 for forming the bottom seal portion 13, and a zipper A side seal bar 543 that forms the side seal portion 12 at the position of the punched hole of the tape 20 and the band side punched hole of the strip-shaped member 30; a notch forming portion 544 that penetrates and forms the notch hole at the position of the side seal portion 12; The first cutting portion 545 that cuts between the tapes 20 and the side seal portion 12 And a second cutting portion 546 that obtains a zipper tape-equipped bag body 1 having a notch 16 that is cut in such a manner as to cross the hole and heat-sealed on the three sides of the bottom seal portion 13 and the side seal portion 12. .
The base film 11, the zipper tape 20, and the strip-shaped member 30 are not limited to heat sealing, and various methods such as ultrasonic welding and adhesion using an adhesive can be used.
And as a next process of the manufacturing apparatus 5, the filling apparatus (not shown) which fills the to-be-packaged object in the formed bag body 1 with a zipper tape is provided.

(Manufacturing method of bag with zipper tape)
Next, the manufacturing method of the bag body 1 with a zipper tape using the said manufacturing apparatus 5 is demonstrated with reference to drawings.

  The manufacturing method of the bag body 1 with a zipper tape is manufactured using, for example, a manufacturing apparatus 5 for making a three-side bag as shown in FIG. A flattening step, a separation step of peeling the release tape 2A to separate it into the zipper tape 20 and the belt-like member 30, and heat-sealing the zipper tape 20 and the belt-like member 30 to the base film 11, and the zipper from the base film 11 A bag making process for forming the bag-attached bag body 1 and the like are performed.

In the tape feeding process, the zipper tape 20 is pulled out from the tape take-up roll 511 and sent to the flattening unit 52.
In the flattening step, punching holes are punched at predetermined intervals at the positions of the male part 21B and the female part 22B of the zipper tape 20, and the band-side punching hole is punched and formed at the corresponding position.
In the separation step, the peeling tape 2A is peeled from the zipper tape body 2 with respect to the zipper tape body 2 provided with the punching hole and the band side punching hole, and separated into the zipper tape 20 and the belt-like member 30. The separated zipper tape 20 and strip member 30 are sent to the bag making apparatus 54.

In the bag making process, the male member 21 and female member 22 of the zipper tape 20 and the pair of belt-like members 30 are positioned at predetermined positions with respect to the base film 11 by the positioning guide portion. Then, the male member 21 and the female member 22 of the zipper tape 20 and the pair of belt-like members 30 are heat-sealed to the base film 11 by the seal bar 541, respectively.
At the time of this heat sealing, since the male side belt-like base portion 21A and the female side belt-like base portion 22A and the belt-like member 30 have the same thickness dimension, the male member 21 or the female member 22 The belt-like member 30 can be joined to the base film 11 in series.

Thereafter, the bottom seal portion 13 is formed by the bottom seal bar 542. Subsequently, the base film 11 is heat-sealed by the side seal bar 543 at the positions of the punching hole and the band-side punching hole to form the side seal portion 12. Thereafter, a notch forming step of penetrating and forming a notch hole is performed by the notch forming portion 544 at a position of the side seal portion 12 and between the zipper tape 20 and the belt-like member 30. Cut by the first cutting portion 545 and the second cutting portion 546, the three sides of the bottom seal portion 13 and the side seal portion 12 are sealed, and the bag body 1 with zipper tape having the notch 16 is cut out.
Then, a predetermined amount of an article to be packaged is put into the obtained bag body 1 with a zipper tape from the opening 14 side by a filling device (not shown), the edge of the opening 14 is sealed to form a top seal portion, The bag body 1 with a zipper tape in which the package is stored is obtained.

{Use of bag with zipper tape}
Next, the usage method of the said bag body 1 with a zipper tape is demonstrated based on FIG.
FIG. 5 shows a cross section for explaining the unsealing state of the bag body with a zipper tape.
First, when the user first takes out an object to be packaged from the bag body 1 with a zipper tape, the base film 11 is torn from the notch 16 and the top seal portion side is cut off to be opened.
And in order to take out the package to be stored in the bag body 10 in advance or to newly store the package in the bag body 10, the opening edge of the opened bag body 10 is picked to widen the opening. To do.

At this time, as shown in FIG. 5, the male side belt-like base portion 21A and the female side belt-like base portion 22A are not joined to the base film 11 at the positions of the male side concave groove 21A3 and the female side concave groove 22A3. Since it is thin at the positions of the side concave groove 21A3 and the female side concave groove 22A3, it is easy to bend at the position of the male side concave groove 21A3 and the female side concave groove 22A3. Therefore, the opening edge is widened so that the opener's finger can easily enter the opening edge, and the operation of widening the opening is facilitated.
By expanding the opening, the male portion 21B and the female portion 22B are disengaged, and the bag body 10 is opened so that an article to be packaged can be taken out or stored.
And after taking out or storing a to-be-packaged object, the bag main body 10 is resealed by engaging the male part 21B and the female part 22B again.

{Effect of the first embodiment}
As described above, in the first embodiment, the zipper tape body 2 is integrally formed by connecting the zipper tape 20 and the belt-shaped member 30 so as to be peelable by the peeling tape 2A.
Thus, the peeling tape 2A is peeled from the zipper tape 20 and the belt-like member 30 and joined to the base film 11 to form a bag, whereby only the base film 11 is cut between the zipper tape 20 and the belt-like member 30. Thus, an opening position for opening with a small force is configured. For this reason, the structure which can be opened with small force at the time of opening can be manufactured easily.

And in said 1st embodiment, the zipper tape body 2 is a strip | belt shape in the surface by which the male part 21B of the male side strip | belt-shaped base part 21A protrudes, and the surface by which the female part 22B of the female side strip | belt-shaped base part 22A protrudes. The peeling tape 2 </ b> A is pasted so as to be cross-linked so as to be peelable from the member 30 and is integrally connected.
For this reason, the connection and peeling of the zipper tape 20 and the strip | belt-shaped member 30 by 2 A of peeling tapes can be performed easily.

In the first embodiment, the male member 21 and the female member 22 are provided with a male groove 21A3 and a female groove 22A3, respectively.
As a result, the male side groove-like base portion 21A and the female side groove-like base portion 22A are not joined to the base film 11 at the portions of the male side groove 21A3 and the female side groove 22A3. It becomes easy to bend in 22A3 part. Therefore, since the engagement between the male part 21B and the female part 22B is released after opening, the opening edge is widened by opening, and the opener's finger can easily enter the opening edge, thereby facilitating the opening operation.
In particular, since it is provided on both the male member 21 and the female member 22, the opening operation becomes easier.
Further, as the formation of the region that is not bonded to the base film 11, the male groove 21A3 and the female groove 22A3 having a concave groove structure retreated from the surface to be bonded to the base film 11 are formed. Become. Therefore, it becomes easier to bend and the opening operation becomes easier.

In the first embodiment, a pair of strip members 30 are provided.
For this reason, when tearing the base film 11 at the time of opening, tearing is guided by the pair of band-shaped members 30, and the straightness of the tear is further obtained, and the base film 11 of the bag body 10 is cut linearly. It can be opened more easily.

Moreover, in said 1st embodiment, the crushing process which forms the side seal part 12 in the position which carried out the point seal is implemented.
For this reason, it is possible to prevent inconveniences such as the inflow of resin into the bag body 10, and no pinhole or the like is generated, and the zipper tape 20 and the belt-like members 30 (30 </ b> A, 30 </ b> B) in the side seal portion 12 are positioned. In the region, the base film 11 can be bonded with high sealing performance.

Furthermore, in the said embodiment, the notch formation process for providing the notch 16 in the bag main body 10 is implemented.
For this reason, it becomes easy to cut the base film 11 from the formed notch 16 to the space between the male side belt-like base portion 21A and the female side belt-like base portion 22A and the belt-like member 30, and is opened by a simple method of providing the notch 16 Can be easily manufactured.

[Second Embodiment]
Next, a second embodiment of the present invention will be described based on the drawings.
2nd embodiment differs in the structure of the zipper tape body 2 in 1st embodiment.
FIG. 6 shows a cross section of a bag body with a zipper tape according to the second embodiment.
{Configuration of bag body with zipper tape}
As shown in FIG. 6, the zipper tape-equipped bag body 1 includes a bag main body 10, a zipper tape 20 bonded to the inner surface of the bag main body 10, for example, heat-sealed, and a pair of band-shaped members 30.
{Configuration of bag body with zipper tape}
As shown in FIG. 6, the zipper tape-equipped bag body 1 includes a bag main body 10, a zipper tape 20 bonded to the inner surface of the bag main body 10, for example, heat-sealed, and a pair of band-shaped members 30.

(Configuration of zipper tape)
As shown in FIG. 6, the zipper tape 20 includes a male member 21 and a female member 22.
The male member 21 has a male side belt-like base portion 21A formed in a longitudinal belt shape, and a male portion 21B provided on the male side belt-like base portion 21A so as to protrude in a cross-sectional shape along the longitudinal direction.
At one end edge in the width direction of the male side strip-shaped base portion 21A, a male side thick region 21A1 is provided which is a thick region that bulges from the surface from which the male portion 21B protrudes. Further, on the other end side in the width direction of the male side band-shaped base portion 21A, a plurality of male side ribs 21A2 as convex portions protruding at the same height as the male side thick region 21A1 on the surface from which the male portion 21B protrudes. Is provided. Further, the male side belt-like base portion 21A is provided with a male side concave groove 21A3 which is a concave groove as a non-joining region along the longitudinal direction on the surface opposite to the surface from which the male portion 21B protrudes.
Then, the male member 21 has the male side thick region 21A1 positioned on the side of the opening 14 along the opening 14 of the bag body 10, and both ends in the width direction of the male side belt-like base 21A are on the bag body 10. Are attached and attached.

The female member 22 includes a female-side belt-like base portion 22A formed in a longitudinal belt shape, and a female portion 22B that is provided to project along the longitudinal direction of the female-side belt-like base portion 22A and from which the male portion 21B can be engaged and disengaged. ing.
At one end edge in the width direction of the female-side belt-like base portion 22A, there is provided a female-side thick region 22A1, which is a thick-walled region bulging from the surface from which the female portion 22B protrudes. Further, on the other end side in the width direction of the female band-shaped base portion 22A, a plurality of female ribs 22A2 as convex portions protruding at the same height as the female thick wall region 22A1 are formed on the surface from which the female portion 22B protrudes. Is provided. The female-side belt-like base portion 22A is provided with a female-side groove 22A3 that is a groove as a non-joining region along the longitudinal direction on the surface opposite to the surface from which the female portion 22B protrudes.
Then, the female member 22 is attached along the opening 14 of the bag body 10 such that the female-side thick region 22A1 is positioned on the opening 14 side and both ends in the width direction are joined to the bag body 10. ing.

The strip-shaped member 30 is formed in a strip shape having the same thickness as the male-side thick region 21A1 and the female-side thick region 22A1.
And the strip | belt-shaped member 30 is located in the opening part 14 side with respect to the male member 21 and the female member 22, and is respectively attached to the bag main body 10 in parallel through the gap | interval.

{Manufacture of bags with zipper tape}
For manufacturing the bag body 1 with zipper tape, for example, a three-side bag making machine shown in FIG. 3 similar to the first embodiment can be used. In addition, various methods are employable for manufacture of the bag body 1 with a zipper tape.
When the zipper tape-equipped bag body 1 according to the second embodiment is manufactured, the zipper tape body 2 shown in FIG. 7 in which the male member 21 and the female member 22 of the zipper tape 20 and the belt-like member 30 are integrally configured. It is bonded to the base film 11 to make a bag.
FIG. 7 is a cross-sectional view showing a zipper tape body.

Specifically, the zipper tape body 2 includes a male material 20A and a female material 20B.
The male material 20A has a male side band-shaped part 20A1 formed in a longitudinal band shape and a male part 21B provided on the male side band-shaped part 20A1 along the longitudinal direction.
The male side belt-like portion 20A1 is formed in a longitudinal belt shape, the male side belt-like base portion 21A from which the male portion 21B protrudes, and one end edge in the width direction of the male side belt-like base portion 21A from the surface on the side from which the male portion 21B protrudes. The male side thick region 21A1, which is a thick region formed thick, and one end edge in the width direction of the male side thick region 21A1, are continuously formed on the surface on the side where the male side thick region 21A1 bulges. The male side thin region 21A4 as a connecting portion formed thinner than the male side band-shaped base portion 21A, and one end edge in the width direction of the male side thin region 21A4 have the same thickness as the male side thick region 21A1. A male belt-like member 30A.

The female member 20B has a female side belt-like portion 20B1 formed in a longitudinal belt shape and a female portion 22B provided in the female side belt-like portion 20B1 along the longitudinal direction.
The female side belt-like portion 20B1 is formed in a longitudinal belt shape and protrudes from the surface on the side from which the female portion 22B protrudes at the one end edge in the width direction of the male side belt-like base portion 22A. A female side thick region 22A1, which is a thick region formed thick, and one end edge in the width direction of the female side thick region 22A1, are provided in series on the surface on the side where the female side thick region 22A1 bulges. Female side thin region 22A4 as a connecting portion formed thinner than female side strip base 22A, and a female having the same thickness as female side thick region 22A1 at one end edge in the width direction of female side thin region 22A4. Side band-shaped member 30B.
And the bag body 1 with a zipper tape is manufactured similarly to 1st embodiment.

{Use of bag with zipper tape}
Next, the usage method of the said bag body 1 with a zipper tape is demonstrated based on FIG.
FIG. 8 shows a cross-section for explaining the opening state of the bag body with a zipper tape.
As in the first embodiment, the base film 11 is first torn from the notch 16 and is opened by cutting off the top seal portion side.
And in order to take out the package to be stored in the bag body 10 in advance or to newly store the package in the bag body 10, the opening edge of the opened bag body 10 is picked to widen the opening. To do.

At this time, as shown in FIG. 8, the male-side belt-like base portion 21A and the female-side belt-like base portion 22A are not joined to the base film 11 at the positions of the male-side groove groove 21A3 and the female-side groove groove 22A3. Since it is thin at the positions of the side concave groove 21A3 and the female side concave groove 22A3, it is easy to bend at the position of the male side concave groove 21A3 and the female side concave groove 22A3. Therefore, the opening edge is widened so that the opener's finger can easily enter the opening edge, and the operation of widening the opening is facilitated.
Furthermore, since the male side thick region 21A1 and the female side thick region 22A1 are located in the vicinity of the opening edge, they function as a slip stopper, and the work of widening the opening becomes easier.
By expanding the opening, the male portion 21B and the female portion 22B are disengaged, and the bag body 10 is opened so that an article to be packaged can be taken out or stored.
And after taking out or storing a to-be-packaged object, the bag main body 10 is resealed by engaging the male part 21B and the female part 22B again.

{Effect of the second embodiment}
As described above, since the zipper tape body 2 in which the zipper tape 20 and the belt-like member 30 are integrally connected so as to be peelable by the peeling tape 2A is used in the second embodiment as well as the first embodiment. The structure which can be opened with a small force at the time of opening with a simple operation of peeling 2A can be easily manufactured.

In the second embodiment, the male side thick region 21A1 and the female side thick region 22A1 are provided on one end side in the width direction of the male side belt base 21A and the female side belt base 22A, respectively.
Thus, after the bag making, the base film 11 is cut and opened between the zipper tape 20 and the belt-shaped member 30, and then the male side thick region 21A1 and the female side thick region 22A1 are in the vicinity of the opening edge. Will be located. Therefore, the male-side thick region 21A1 and the female-side thick region 22A1 function as a slip stopper during the opening operation, and the opening operation is facilitated.

In the second embodiment, the male side thick region 21A1, the female side thick region 22A1 and the belt-like member 30 have the same thickness dimension.
Accordingly, when the male side belt-like base portion 21A and the female side belt-like base portion 22A and the belt-like member 30 are joined to the base film 11 to form a bag, the surfaces to be pressed are the same surface. For this reason, it can join by one operation | movement using the one seal bar 541, can simplify the manufacturing apparatus 5, and can make a bag easily.

Furthermore, in the second embodiment, the male side rib 21A2 and the female side rib 22A2 are provided on the other end side in the width direction of the male side band-like base portion 21A and the female side band-like base portion 22A, respectively. The thickness is the same as that of the one end side in the width direction where the side thick region 22A1 is provided.
Thus, when the male side belt-like base portion 21A and the female side belt-like base portion 22A are joined to the base film 11 to make a bag, the surfaces that press both ends in the width direction of the male side belt-like base portion 21A and the female side belt-like base portion 22A. Are on the same plane. For this reason, the male side belt-like base portion 21A and the female side belt-like base portion 22A can be joined to the base film 11 by one operation using one seal bar 541 having the same simple structure to be pressed, and the manufacturing apparatus 5 is simplified. And making bags easily.
In particular, since the male side rib 21A2 and the female side rib 22A2 having a simple configuration are provided and have the same thickness, the pressing surface can be made the same with a minimum amount of resin.

In the second embodiment, a pair of strip members 30 are provided.
For this reason, when tearing the base film 11 at the time of opening, tearing is guided by the pair of band-shaped members 30, and the straightness of the tear is further obtained, and the base film 11 of the bag body 10 is cut linearly. It can be opened more easily.

[Third embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG.
The third embodiment is different from the first embodiment in the method of manufacturing the bag body 1 with a zipper tape, and the other configurations are the same as those in the first embodiment.
FIG. 9 is a perspective view showing a schematic configuration of a manufacturing apparatus for the bag body 1 with a zipper tape.

{Manufacture of bags with zipper tape}
And as the bag body 1 with a zipper tape of 3rd embodiment, the pillow type bag making machine shown in FIG. 9 can be utilized. In addition, various methods are employable for manufacture of the bag body 1 with a zipper tape.
The manufacturing apparatus 6 shown in FIG. 9 includes a tape delivery device 61 that sends out the zipper tape body 2 by releasing the engagement between the male portion 21B and the female portion 22B, and the male member 21 side and the female member 22 side of the zipper tape body 2. Made from the base film 11, the tape joining portion 62 that is disposed and joined to both ends in the width direction of the base film 11, the peeling portion 63 that peels the release tape 2 A from the zipper tape 20 and the belt-shaped member 30, and the base film 11. A bag making device 64 for bagging, and the like.

The tape joining portion 62 includes a positioning guide portion 621 for disposing the male member 21 side and the female member 22 side of the zipper tape body 2 on both ends in the width direction of the base film 11 and the male member 21 of the zipper tape body 2. The heat sealing part which is not shown in figure which joins the side and the female member 22 side, and the base film 11 is heat-sealed, for example.
The positioning guide part 621 is not limited to the case where the roller 622 having a concave portion corresponding to the male part 21B or the female part 22B is used on the peripheral surface, and the base film 11 and the male member 21 side of the zipper tape body 2 and Any configuration capable of positioning the female member 22 side can be used.

  The peeling part 63 peels the peeling tape 2A of the zipper tape body 2 from the zipper tape 20 and the belt-like member 30. For example, the end of the peeling tape 2A is peeled in advance and the zipper tape body 2 is installed in the manufacturing apparatus 6. In addition, it peels one by one by conveyance of the zipper tape body 2 using a roller, a plate, etc.

The bag making apparatus 64 includes a cylindrical former 641 around which the base film 11 to which the zipper tape 20 and the belt-shaped member 30 are bonded is wound, a feed belt 642 disposed on a side of the cylindrical former 641, and a male part 21B. And the female portion 22B are engaged, the zipper tape 20 and the belt-like member 30 are crushed at a predetermined interval, for example, a point seal portion 643 for point sealing by thermocompression bonding, and a notch forming portion 644 for penetrating a notch hole at a predetermined interval Cut at the positions of the seal bar 645 that forms the top seal portion 17 by heat-sealing both sides of the base film 11, the side seal bar 646 that forms the side seal portion 12 by heat sealing, and the side seal portion 12. And a cutting portion 647 for obtaining the bag body 1 with a zipper tape.
The cylindrical former 641 is formed in a hollow shape and puts an article X to be packaged into the bag body 10 through the internal space.
The point seal portion 643 is point-sealed after the base film 11 is wound around the cylindrical former 641 and the opposite edges in the width direction are overlapped to engage the opposing male portion 21B and female portion 22B.

And the manufacturing method of the bag body 1 with a zipper tape using the said manufacturing apparatus 6 arrange | positions the zipper tape body 2 to the both ends of the width direction of the base film 11, and the tape sending process which sends out the zipper tape body 2. A tape joining process for joining, a peeling process for peeling the release tape 2A from the zipper tape 20 and the belt-like member 30, a bag making process for forming the bag body 1 with a zipper tape from the base film 11, and the like are performed.
In the tape delivery process, the zipper tape 20 is pulled out from a tape take-up roll (not shown) and delivered to the tape joint 62.
In the tape joining step, the male member 21 side and the female member 22 side of the zipper tape body 2 are arranged on both end sides in the width direction of the base film 11 by the positioning guide part 621, respectively, and heat sealed by the heat seal part.
After heat sealing the zipper tape body 2, the peeling tape 2A is peeled off in a peeling step.

Thereafter, in the bag making process, the base film 11 is wound around the cylindrical former 641 and the male part 21B and the female part 22B are locked by the point seal part 643. Point sealing is performed at intervals of the portion 12. Further, notch holes are formed through the notch forming portion 644 at predetermined intervals, that is, at intervals of the side seal portions 12.
And the both ends of the width direction which the base film 11 overlaps are heat-sealed with the seal bar 645, and the top seal part 17 is formed. Thereafter, heat sealing is performed in a direction orthogonal to the delivery direction of the base film 11 by the side seal bar 646 to form one side seal portion 12.
Thereafter, after a predetermined amount of the package X is charged by a filling device (not shown), the side seal bar 646 heat seals in a direction perpendicular to the feeding direction of the base film 11.
Further, the other side seal portion 12 is formed to enclose the article X to be packaged and cut at an intermediate position of the side seal portion 12 to obtain the bag body 1 with a zipper tape filled with the article X to be packaged.

  Also about said 3rd embodiment, the bag body 1 with a zipper tape which can be opened with a small force at the time of opening similarly to said 1st embodiment can be manufactured easily.

[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.

For example, as a form in which the male member 21 and the female member 22 and the belt-like member 30 are connected by the peeling tape 2A, for example, as shown in FIG. 10, the male-side belt-like base portion 21A or the female-side belt-like base portion 22A and the belt-like member 30 It is good also as a structure connected so that it may interpose. In the configuration shown in FIG. 10, since each thickness is the same, there is an effect that it is easy to join the base film 11.
Moreover, as shown in FIG. 11, it is good also as a structure connected with the peeling tape 2A made into the thickness dimension for the dimension made into the thickness which made the male side thick area | region 21A1 and the female side thick area | region 22A1 thick. In the configuration shown in FIG. 11, since there are few connected parts, there is an effect that it is easy to make a bag because it is easy to peel and has little resistance during bag making.
Furthermore, as shown in FIG. 12, the thick side of the male side thick region 21A1 and the thick side of the female side 22A1 is bridged to the thickened region of the male side thick region 21A1 and the thick side of the female side 22A1. It is good also as a structure connected with 2 A of peeling tapes made into the thickness dimension for said dimension. The configuration shown in FIG. 12 has an effect that it is easier to peel than the embodiment shown in FIG.

Even if the male side thick region 21A1 and the female side thick region 22A1 are provided on the zipper tape 20, the thickness dimension of the strip-like member 30 is the same as the thickness dimension of the male side strip base portion 21A and the female side strip base portion 22A. It is not limited to the case where the thickness dimensions of the male side belt-like base portion 21A and the female side belt-like base portion 22A and the belt-like member 30 are the same.
Similarly, the thickness dimensions of both end portions in the width direction of the male side belt-like base portion 21A and the female side belt-like base portion 22A may not be the same.
And as a convex part, although it was set as the structure which provided multiple male side rib 21A2 and female side rib 22A2, for example, providing the same shape as male side thick region 21A1 and female side thick region 22A1, etc., Any shape having the same thickness may be used.

Furthermore, although the male side ditch | groove 21A3 and female side ditch | groove 22A3 were provided in the zipper tape 20, it is good also as a structure provided only in any one. Further, the groove is not limited to one line, and a plurality of grooves may be provided.
The male side groove 21A3 and the female side groove 22A3 are not limited to the configuration in which the male side belt base 21A and the female side belt base 22A are thin. For example, the thickness of the male side belt base 21A and the female side belt base 22A Without changing the size, the male side concave groove 21A3 and the female side concave groove 22A3 may be provided, or a non-continuous concave groove structure may be provided. Furthermore, the male-side concave groove 21A3 and the female-side concave groove 22A3 may not be provided, and only a region that is not joined to the base film 11 may be provided.
In addition, since it is easy to obtain the structure of the non-contact area | region which is easy to bend | fold, it is preferable to set it as the structure which becomes thin in the step shape retreated from the surface joined to the base film 11. FIG. Further, it is preferable to provide the male portion 21B and the female portion 22B in parallel with each other so that the male portion 21B and the female portion 22B can be easily bent in an engaged state.

Moreover, as a weakening part used as the opening start position at the time of opening of the bag body 1 with a zipper tape, not only when forming the notch 16, but the part by which rigidity was weakened so that the base film 11 could be torn at the part, Various configurations can be applied. For example, a configuration provided with a perforation 18 that is a broken-line hole as shown in FIG. 13, a configuration formed as a missing portion or a thin wall, and a configuration formed by a member that is softer and easier to cut than other portions, etc. it can.
The weakened portion is not limited to being provided in each of the side seal portions 12, and may be provided only in one side seal portion 12.

  In the first and second embodiments, the release tape 2 is first peeled and then joined to the base film 11 to form a bag. In the third embodiment, the zipper tape body 2 is joined to the base film 11. The timing at which the peeling tape 2A is peeled off as long as the peeling tape 2A is peeled off after that may be appropriately set according to the bag making method, the configuration of the bag making apparatus, and the like.

DESCRIPTION OF SYMBOLS 1 ......... Bag body with zipper tape 2 ......... Zipper tape body 2A ...... Peeling sheet as connecting member 10 ......... Body body 11 ......... Base film 16 which is a film 16 ......... Notch as weak part 18 ......... Perforation as weak part 20 ... ... Zipper tape 21 ... ... Male member 21A ... Male side strip base 21A1 ... Male side thick area 21A2 ... Male side rib as convex part 21A3 ... Non-joining area Male side groove 21B as a male part 22 ... female member 22A ... female side strip base 22A1 ... female side thick area 22A2 ... female side rib 22A3 as convex part 22A3 ... female side as a non-joining area Groove 22B ...... Female part 30 ......... Strip member

Claims (6)

A male member having a male side belt-like base and a male part provided on the male side belt-like base, a female side belt-like base, and a female part provided on the female side belt-like base and engageable with the male part A zipper tape comprising a female member having
On one end side in the width direction of the male-side strip-like base portion and the female-side strip-like base portion, and a connecting member that will be releasably connected respectively,
Each of the connecting members is detachably connected to one end side in the width direction of the male side band-like base and the female side band-like base, in parallel with the male side band-like base or the female side band-like base via the connecting member. Arranged strips and
The male side belt-like base and the female side belt-like base are provided on one end side in the width direction with a thicker region thicker than the thickness dimension of the male side belt-like base and the female side belt-like base,
The band-shaped member is formed in the same thickness dimension as the thickness dimension of the thick region,
The connecting member connects the male side belt-like base and the female side belt-like base and the belt-like member so that both sides of the thick region and the belt-like member are the same surface in the thickness direction. Characteristic zipper tape body. In the zipper tape body according to claim 1 ,
The male side belt-like base and the female side belt-like base are provided with a convex portion having the same thickness as the thick region in the vicinity of the end opposite to the one end side where the thick region is provided. A zipper tape body characterized by In the zipper tape body according to claim 1 or 2 ,
At least one of the male side belt-like base and the female side belt-like base is provided with the male part or the female part on a surface opposite to the side where the male part or the female part is provided. A zipper tape body, characterized in that a non-joining region that is not joined to the film is provided between the position and one end edge on the side where the belt-like member is located. The step of bonding the zipper tape body according to any one of claims 1 to 3 to at least one film;
Peeling the connecting member of the zipper tape body from the zipper tape and the belt-like member;
And a step of bag-making a film to which the zipper tape and the belt-like member are joined. A method for producing a bag body with a zipper tape. In the manufacturing method of the bag body with a zipper tape according to claim 4 ,
A method for flattening the zipper tape and the belt-like member at a predetermined interval is further implemented. A method for manufacturing a bag body with a zipper tape. In the manufacturing method of the bag body with a zipper tape of Claim 4 or Claim 5 ,
The step of bag-making the film includes a step of crossing the male side belt-like base and the female side belt-like base with one peripheral edge of the bag main body made from the film, the belt-like member and the bag main body. The manufacturing method of the bag body with a zipper tape characterized by implementing the process of providing a weak part between the area | regions where one peripheral edge cross | intersects.

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