JP6815208B2 - Manufacturing method of bag body, its manufacturing equipment, and bag body - Google Patents

Description

The present invention relates to a method for manufacturing a bag, an apparatus for manufacturing the bag, and a bag.

As a packaging material for packaging various articles such as foods, medicines, medical products, and miscellaneous goods, a pair of band-shaped zipper tapes that occlude male and female are arranged with respect to the opening of the bag body, and the occlusal state can be opened and closed freely. A bag with a zipper tape is applied.
The bag body with such a zipper tape is sealed by sealing the opening. When opening the bag, the seal portion can be removed so as to tear the base film of the bag body from the notches or notches formed in the edge of the bag.
In recent years, a bag body with a zipper tape that anyone can easily open has been developed, and a guide tape is provided in parallel with the zipper tape so that the base film of the bag body can be torn in a straight line. It is known (see, for example, Patent Document 1).

The bag body with the zipper tape described in Patent Document 1 is provided with strip-shaped members in parallel with the zipper tape via a predetermined gap. In this bag body, the base film, the zipper tape, and the strip-shaped member are sent out, respectively, and the zipper tape and the strip-shaped member are joined in parallel at a predetermined position with respect to the base film to make a bag. At the time of opening, the base film of the bag body is torn between the zipper tape and the strip-shaped member, so that the bag is opened linearly. The bag body is made by positioning the zipper tape and the strip-shaped member in the concave grooves provided on the peripheral surface of the rotating drum and joining them to the base film.

Japanese Unexamined Patent Publication No. 2010-137867

In Patent Document 1, when the bag body with the zipper tape is manufactured, the base film, the zipper tape, and the strip-shaped member may be loosened or meandered to some extent when they are sent out. In order to properly position the zipper tape and the strip-shaped member and properly bond them to the base film, it is necessary to feed them out at a certain speed or less. For this reason, a more efficient bag body manufacturing technique is desired. As the bag body, the zipper tape and the strip-shaped member bonded to the film are formed by a connecting portion having a thickness thinner than that of the zipper tape and the strip-shaped member. It is also known that they are integrally connected in parallel.
The present invention is provided with a guide or the like, and when the film of the bag body is torn and opened, the tearing direction is controlled by the guide or the like to control the tearing direction, thereby producing a bag body that is easy to open, a manufacturing apparatus thereof, and the bag body. The purpose is to provide.

One aspect of the method for producing a bag body of the present invention is a method for producing a bag body in which a tape is bonded to a bag body, and is one of a pair of band-shaped bases and at least one of the pair of band-shaped bases. The tape having a band-shaped member provided along the longitudinal direction of the band-shaped base at an end edge is composed of at least one film, and can be the bag body having a storage space capable of storing an object to be packaged. The steps of joining to the film include a step of separating the strip-shaped member from at least one of the pair of strip-shaped bases and a step of separating the separated strip-shaped member from the pair of strip-shaped bases from which the strip-shaped member is separated. The distance between the separated band-shaped members and the pair of band-shaped bases is separated along the longitudinal direction of the pair of band-shaped bases and the movement in the direction intersecting the longitudinal direction of the band-shaped members is restricted. The step of making the film constant and the step of joining the strip-shaped base portion and the strip-shaped member are carried out.

In the present invention, as a bag body in which a tape is bonded to a bag body, a pair of guides or the like to be bonded to a film in parallel is provided, and when only the film related to the bag body is torn and opened, the tearing direction is determined by the guide or the like. By controlling, a bag body that is easy to open is manufactured.
That is, in the present invention, the strip-shaped member is separated from at least one of the pair of strip-shaped bases, the movement of the strip-shaped member in the direction intersecting the longitudinal direction is restricted, and the separated strip-shaped base and the strip-shaped member are separated from each other. Keep the distance constant. Here, the constant distance between the band-shaped member and the band-shaped base in the present invention is not constant in a strict sense, but means a substantially constant distance, and is band-shaped due to misalignment within a range that does not change the tearing direction of the bag. This includes cases where the distance between the base and the strip-shaped member fluctuates.
As a result, for example, the strip-shaped member and the strip-shaped base are separated from each other by a certain distance and joined to the bag body, so that only the film related to the bag body is torn. That is, in a bag in which the zipper tape and the band-shaped member are connected in parallel by a connecting portion thinner than the thickness of the zipper tape and the band-shaped member, two sheets are used when opening at the connecting portion between the zipper tape and the band-shaped member. It is necessary to tear four places for convenience of the film related to the bag body and the connecting part connected to the pair of band-shaped bases, but in the present invention, it is sufficient to tear the film related to the two bag bodies at two places. It can be expected that the occurrence of stringing at the time of tearing will be reduced.
Here, if the strip-shaped base and the strip-shaped member in the present invention function as a guide capable of controlling the tearing direction of the film related to the bag body, for example, a pair of guide tapes for opening which are joined to the film in parallel. , There is no particular limitation, and various strip-shaped members can be targeted.
In addition, separation means that a part of what is integrated is separated from or peeled off from another part. In the separation according to one aspect of the present invention, the connecting portion connecting the strip-shaped member and the pair of strip-shaped base portions is cut or torn, and the strip-shaped base portion and the strip-shaped member integrally formed in advance are separated from each other. It also includes cutting and tearing the portion, and peeling off the portion between the band-shaped base and the band-shaped member that are integrally formed in advance.
In addition, as the configuration of the connecting portion for separation, in addition to thin-walled and perforated holes having a broken line shape, a band-shaped member such as a member formed of a member that is softer and easier to cut than other parts. This includes those having weakened rigidity capable of separating the two, and those in which the adhesive tape attached to the strip-shaped member and the strip-shaped base is peeled off from the strip-shaped member or the strip-shaped base, respectively.
In addition, joining means that the two members are stuck together so that they do not separate, and in order to join the two members, for example, heat sealing, welding by ultrasonic waves, bonding using an adhesive, etc. The method is available.
Further, the separation means that the two members are separated from each other so as not to interfere with each other. In addition to the case where the distance between the two members is widened and maintained, the initial distance is changed without widening the distance between the two members. Including the case of maintaining without. In one aspect of the present invention, in addition to the case where the distance between the separated band-shaped member and the band-shaped base is maintained in a widened state, when the distance between the separated band-shaped member and the band-shaped base is sufficient, the band-shaped member It also includes the case where the distance between the band and the band base is not changed.
The method for manufacturing the bag body of the present invention is not particularly limited as long as it is a manufacturing method for manufacturing the bag body, and can be suitably applied.
Further, the gap means that there is a gap between the two members, for example, a gap having a sufficient distance between the strip-shaped base portion and the strip-shaped member arranged in parallel so that the film can be cut.

One aspect of the method for producing a bag body of the present invention is a method for producing a bag body in which a zipper tape is bonded to the bag body, the male side band-shaped base that can be bonded to the inner surface of the bag body, and the male. A male member having a male portion provided on the side band-shaped base, a female side band-shaped base that can be joined to the inner surface of the bag body, and a female portion provided on the female-side band-shaped base and to which the male portion can engage. A zipper tape provided with a female member having a band-shaped member, and a band-shaped member provided along the longitudinal direction of the band-shaped base portion at one end edge of at least one of the male member and the female member. In the step of joining the strip-shaped member to the film, which is composed of at least one film and has a storage space capable of storing the object to be packaged and can be the bag body, the strip-shaped member is attached to the male member and the female member. The step of separating from at least one of the strip-shaped bases and at least one of the strip-shaped bases from at least one of the strip-shaped bases from which the strip-shaped members are separated. Separated along one longitudinal direction and restricting the movement of the strip-shaped member in a direction intersecting the longitudinal direction, the separated strip-shaped member and at least one of the strip-shaped bases. The step of making the distance constant and the step of joining the film, the strip-shaped base portion, and the strip-shaped member are carried out.

In the present invention, the strip-shaped member is separated from at least one of the male-side strip-shaped base and the female-side strip-shaped base constituting the zipper tape, and the movement of the strip-shaped member in the intersecting direction with respect to the longitudinal direction is restricted and separated. Keep the distance between the strip-shaped base and the strip-shaped member constant.
As a result, the strip-shaped member and the male-side strip-shaped base and the female-side strip-shaped base are separated from each other by a certain distance and joined to the bag body. Therefore, when the bag is opened, the films related to the two bag bodies are torn at two points. It can be expected that the number of tearing points is reduced, and the occurrence of stringing at the time of tearing is also reduced.
Here, in one aspect of the present invention, the separation means, for example, that the band-shaped member is one of the band-shaped bases of the integrated band-shaped member and at least one of the male member and the female member. The specific method for separating the bag is the same as the above-mentioned method for manufacturing a bag.

In one aspect of the present invention, in the step of separating the strip-shaped member from the strip-shaped base portion, a connecting portion that integrally connects the edge of at least one of the pair of strip-shaped base portions and the strip-shaped member. , The strip-shaped member can also be separated from the strip-shaped base of at least one of the above.
In one aspect of the present invention, since the tape in which the strip-shaped base and the strip-shaped member are connected and integrated is used, the number of materials can be reduced. Further, since the band-shaped base and the band-shaped member are the same until they are separated, it is possible to easily manage the tension acting on the band-shaped base and the band-shaped member, for example, at the time of bag making.
Here, the pair of band-shaped bases also includes a male-side band-shaped base and a female-side band-shaped base.

In one aspect of the present invention, the connecting portion is formed thinner than at least one of the pair of strip-shaped bases and the strip-shaped member, and separates the strip-shaped member. In the step, the strip-shaped member may be separated from at least one of the pair of strip-shaped base portions by tearing at the connecting portion.
In one aspect of the present invention, the strip-shaped member can be easily separated with a simple structure by tearing the strip-shaped member at the thinly formed connecting portion to separate the strip-shaped member.

In one aspect of the present invention, a band-shaped member separated from at least one of the pair of band-shaped bases is gapped with respect to at least one of the pair of band-shaped bases from which the band-shaped member is separated. It is also possible to carry out the step of separating in parallel via the above.
In one aspect of the present invention, the strip-shaped member is positioned with respect to the pair of strip-shaped bases in a plurality of steps, and can be positioned with high accuracy.
Here, the pair of band-shaped bases also includes a male-side band-shaped base and a female-side band-shaped base.
Further, in order to separate the band-shaped members in parallel through a gap, the band-shaped members are separated from at least one of the male-side band-shaped base and the female-side band-shaped base by the guide portion which is an annular portion through which the band-shaped members can be inserted. Although it may be configured to induce the above, this induction step is not essential.

In one aspect of the present invention, in the step of restricting the movement of the strip-shaped member in a direction intersecting the longitudinal direction, the movement is restricted by a positioning portion capable of contacting at least one side of the strip-shaped member in the longitudinal direction. It can also be configured.
Here, the positioning portion abuts on at least one side of the strip-shaped member in the longitudinal direction and regulates the movement in the direction intersecting the longitudinal direction of the strip-shaped member. For example, the positioning portion hits one side of the strip-shaped member in the longitudinal direction. Examples include columnar objects in contact with each other. The columnar objects may be arranged in pairs with a strip-shaped member in between.
In one aspect of the present invention, the strip-shaped member can be easily positioned with a relatively simple configuration by bringing the positioning portion into contact with at least one side of the strip-shaped member in the longitudinal direction to restrict movement.

In one aspect of the present invention, the positioning portion may be configured to be in contact with both sides of the strip-shaped member in the longitudinal direction.
In one aspect of the present invention, the strip-shaped member can be positioned with higher accuracy by restricting the movement by positioning portions capable of contacting both sides in the longitudinal direction of the strip-shaped member.

In one aspect of the present invention, the step of joining the strip-shaped member to the film may be performed immediately after the step of restricting the movement of the strip-shaped member in the direction intersecting the longitudinal direction.
In one aspect of the present invention, by immediately joining the movement-restricted strip-shaped member to the film, the strip-shaped member separated from the male-side strip-shaped base and the female-side strip-shaped base can be joined to the film with high accuracy.

One aspect of the bag body manufacturing apparatus of the present invention is a manufacturing apparatus for manufacturing a bag body in which a tape is bonded to a bag body, and is one of a pair of band-shaped bases and at least one of the pair of band-shaped bases. The tape having a band-shaped member provided along the longitudinal direction of the band-shaped base at an end edge, which is composed of at least one film and can be the bag body having a storage space capable of storing an object to be packaged. The joining portion to be joined to the film is a separating portion that separates the strip-shaped member from at least one of the pair of strip-shaped base portions, and the pair of strip-shaped base portions from which the strip-shaped member is separated from the separated strip-shaped member. The separated band-shaped members and the pair of band-shaped bases are separated from each other along the longitudinal direction of the pair of band-shaped bases, and movement in a direction intersecting the longitudinal direction of the band-shaped members is restricted. It is provided with a positioning portion that keeps the distance between the films constant, and a sealing portion that joins the film, the strip-shaped base portion, and the strip-shaped member.

In one aspect of the present invention, the separating portion separates the strip-shaped member from at least one of the pair of strip-shaped base portions, and the positioning portion regulates the movement of the strip-shaped member in the direction intersecting the longitudinal direction.

One aspect of the bag body manufacturing apparatus of the present invention is a manufacturing apparatus for manufacturing a bag body in which a zipper tape is bonded to the bag body, the male side band-shaped base that can be bonded to the inner surface of the bag body, and the female. It has a male member having a male part provided on the side band-shaped base, a female side band-shaped base joined to the inner surface of the bag body, and a female part provided on the female side band-shaped base and to which the male part can engage. The zipper tape provided with a female member and having a band-shaped member provided along the longitudinal direction of the band-shaped base at one end edge of at least one of the male member and the female member. The joint portion to be joined to the film, which is composed of at least one film and has a storage space capable of storing the object to be packaged and can be the bag body, has the strip-shaped member, among the male member and the female member. The separated portion separated from at least one of the strip-shaped bases, and the separated strip-shaped member from at least one of the strip-shaped bases from which the strip-shaped member is separated, at least one of the strip-shaped bases. Separated along the longitudinal direction of one of them, and restricting the movement of the strip-shaped member in a direction intersecting the longitudinal direction of the strip-shaped member, with the separated strip-shaped member and at least one of the strip-shaped bases. It is provided with a positioning portion for keeping the distance between the films, the strip-shaped base portion, and the sealing portion for joining the strip-shaped member.

In one aspect of the present invention, the separating portion cuts one side portion in the longitudinal direction of at least one of the strip-shaped base portions along the longitudinal direction, thereby at least one of the strip-shaped base portions. From one side, the strip-shaped member may be cut out.
In one aspect of the present invention, a strip-shaped member can be obtained by cutting the zipper tape, so that no special configuration needs to be used.

In one aspect of the present invention, the separating portion has a curved surface on a surface opposite to the direction in which the tape or the zipper tape is sent out, and is provided in a columnar shape to be torn at the connecting portion to separate the strip-shaped member. It can also be.
In one aspect of the present invention, the strip-shaped member can be easily torn by the thin-walled connecting portion having a curved surface in the direction opposite to the direction in which the tape or the zipper tape is sent out, and the strip-shaped member can be easily torn with a simple configuration. The strip-shaped member can be separated.
Here, as the cross section of the separation portion, a triangular shape, a quadrangular shape, a polygonal shape, a circular shape, a semicircular shape, an elliptical shape, a flat shape, and the like can be exemplified, and for example, a needle-shaped member, a plate-shaped member, a wire, or It can have any shape that can be torn and separated, such as a rotating body such as a roller.

In one aspect of the present invention, an guiding portion for separating the strip-shaped member separated by the separating portion in parallel with at least one of the strip-shaped members from which the strip-shaped member is separated is provided through a gap. It is also possible to have a provided configuration.
In the present invention, it is preferable to use the guide portion from the viewpoint of improving the accuracy of positioning the distance between the strip-shaped base portion and the strip-shaped member to be constant, but a configuration without the guide portion is also possible.
In one aspect of the present invention, the guide portion allows the strip-shaped member to be positioned with respect to the pair of strip-shaped base portions in a plurality of stages, and can be positioned with high accuracy. Further, by positioning in a plurality of stages, highly accurate positioning adjustment of the gap can be easily performed.

In one aspect of the present invention, the guide portion may be configured to include an annular portion through which the band-shaped member is inserted on the inner peripheral side.
In one aspect of the present invention, a band-shaped member is inserted through the inner peripheral side of the annular portion to separate the band-shaped member from the male-side band-shaped base and the female-side band-shaped base, so that the band-shaped member can be easily formed with a simple configuration. Can be positioned.

In one aspect of the present invention, the seal portion has the male portion and the female portion interposed therebetween with the male portion and the female portion engaged with each other, and the male side band-shaped base portion and the female side. It can also be configured to include a separator that prevents joining with the strip-shaped base.
In one aspect of the present invention, the separator allows the male-side strip-shaped base and the female-side strip-shaped base to be joined to the film without joining the male-side strip-shaped base and the female-side strip-shaped base to each other.

In one aspect of the present invention, the positioning unit may be arranged on the separator.
In one aspect of the invention, the separator restricts the movement of the male-side strip-shaped base and the female-side strip-shaped base in directions close to each other. Then, the movement of the strip-shaped member is restricted by the positioning portion.
Therefore, by providing the positioning portion on the separator, the male side strip-shaped base portion, the female side strip-shaped base portion, and the strip-shaped member are positioned via the separator, and these can be accurately bonded to the film.

In one aspect of the present invention, the positioning portion may be configured to include a columnar object capable of contacting at least one side of the strip-shaped member in the longitudinal direction.
In one aspect of the present invention, a columnar object is brought into contact with at least one side of the strip-shaped member in the longitudinal direction to regulate movement in a direction intersecting the longitudinal direction of the strip-shaped member, whereby a simple configuration can be easily performed. The strip-shaped member can be positioned.
Here, the columnar object can be any shape that can be restricted to move, such as a pin-shaped object such as a prismatic column, a columnar column, or a flat columnar object, a plate shape, a thin flat plate shape, or a guardrail shape.

In one aspect of the present invention, the positioning portion may be configured to include a plurality of the columnar objects so as to be able to come into contact with both sides of the strip-shaped member in the longitudinal direction.
In one aspect of the present invention, the strip-shaped member can be positioned with higher accuracy with a simple configuration by abutting the strip-shaped member on both sides in the longitudinal direction with a plurality of columnar objects to restrict movement.

One aspect of the bag body of the present invention includes a bag body composed of at least one film and having a storage space capable of storing an object to be packaged, and a pair of band-shaped bases joined to the inner surface of the bag body. For at least one of the pair of band-shaped bases, a band-shaped member joined in parallel to the inner surface of the bag body via a gap is provided, and the band-shaped member and the opposite end of the band-shaped base are provided. At least one end of the portion is provided with a protruding portion that protrudes toward the other end, and the protruding portion is a pair of the pair of strip-shaped base portions and the longitudinal direction of the strip-shaped member. It is provided thinner than the thickness in the direction orthogonal to the direction in which the band-shaped base and the band-shaped member are arranged.
The bag body of the present invention may include one band-shaped member in parallel with at least one band-shaped base of the pair of band-shaped bases, and two in parallel with each of both band-shaped bases of the pair of band-shaped bases. A strip-shaped member may be provided.

In one aspect of the present invention, for example, by separating the strip-shaped base portion from the strip-shaped member by cutting or the like, the strip-shaped base portion and the strip-shaped member are separated from each other by at least one of the end portions facing each other. A protruding portion is formed that projects toward the strip-shaped base or the strip-shaped member.
Here, the protruding portion is a portion formed after cutting a connecting portion that integrally connects the end edge of at least one of the pair of strip-shaped bases and the strip-shaped member in order to manufacture the bag body. is there. Since the connecting portion is thinner than the thickness of the strip-shaped base and the strip-shaped member, the protruding portion formed by cutting the connecting portion is also thinner than the strip-shaped base and the strip-shaped member. Further, when the intermediate portion of the connecting portion is cut, it is formed on both the strip-shaped base portion and the strip-shaped member, and when the edge of the connecting portion on the strip-shaped base side or the edge on the strip-shaped member side is cut. Will be formed only on the strip-shaped base or only on the strip-shaped member.
By confirming the presence or absence of the protruding portion in this way, it can be easily determined whether or not the portion between the strip-shaped base portion and the strip-shaped member is cut and separated to form a bag.

In one aspect of the present invention, the strip-shaped members may be arranged in parallel with each of the pair of strip-shaped bases.
According to this, the strip-shaped member and the strip-shaped base are arranged in parallel, and these serve as guides when opening the bag body, so that the opening can be easily performed.

One aspect of the bag body of the present invention is a bag body composed of at least one film and having a storage space capable of storing an object to be packaged, a male side band-shaped base joined to the inner surface of the bag body, and a band-shaped base. , A male member having a male portion provided on the male side strip-shaped base, a female side strip-shaped base joined to the inner surface of the bag body, and the male portion provided on the female-side strip-shaped base so that the male portion can be engaged with each other. A zipper tape provided with a female member having a female portion, and a strip-shaped member joined to the inner surface of the bag body in parallel with respect to at least one of the male member and the female member via a gap. , At least one of the opposite ends of the strip-shaped member, the male-side strip-shaped base, and the female-side strip-shaped base, toward the other end. A protruding portion is provided, and the protruding portion is provided with at least one of the male-side band-shaped base portion and the female-side band-shaped base portion, the longitudinal direction of the band-shaped member, the male-side band-shaped base portion, and the female-side band-shaped base portion. At least one of them and the thickness in the direction orthogonal to the direction in which the strip-shaped members are lined up are provided thinner than the thickness.

In one aspect of the present invention, for example, a strip-shaped base and a strip-shaped base separated by cutting and separating a portion connecting at least one of a male-side strip-shaped base and a female-side strip-shaped base and a strip-shaped member. The protruding portion protrudes from at least one of the ends of the members facing each other.
By confirming the presence or absence of the protruding portion at the end facing the gap in this way, it can be easily determined whether or not the portion between the strip-shaped base portion and the strip-shaped member is cut and separated to form a bag.

In one aspect of the present invention, the band-shaped base may be arranged in parallel with each of the male-side band-shaped base and the female-side band-shaped base.
According to this, the strip-shaped member and the male-side strip-shaped base are arranged in parallel, and the strip-shaped base and the female-side strip-shaped base are arranged in parallel, and these serve as guides when opening the bag body. Can be easily performed.

The plan view which shows the bag body of the embodiment which concerns on this invention. A cross-sectional view of a part of the bag body cut out. Cross-sectional view of the vicinity of the zipper tape of the bag body. The perspective view which shows the manufacturing apparatus which manufactures the bag body before the bottom seal part is formed. Sectional drawing which shows the zipper tape before the strip-shaped member is separated. The plan view which shows the separation positioning apparatus of a manufacturing apparatus. The side view which shows the separation positioning apparatus of a manufacturing apparatus. The end view which shows the separation positioning apparatus of a manufacturing apparatus. The cross-sectional view explaining the opening state of a bag body. The side view which shows the separation positioning part of the manufacturing apparatus of still another Embodiment which concerns on this invention. The side view which shows the guide part of the manufacturing apparatus of still another Embodiment which concerns on this invention. The perspective view which shows the guide part of the manufacturing apparatus of still another Embodiment which concerns on this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, as the bag body of the present invention, a bag body for packaging various articles such as foods, medicines, medical products, stationery, and miscellaneous goods is illustrated, but the present invention is not limited to this.

[Structure of bag body]
As shown in FIGS. 1 and 2, the bag body 1 has a bag body 10, a zipper tape 20 bonded to the inner surface of the bag body 10, for example, a heat-sealed zipper tape 20, and a pair of band-shaped members 30 (30A, 30B). I have.
In FIG. 2, for convenience of explanation, the zipper tape 20 and the strip-shaped member 30 (30A, 30B) are exaggerated and simplified.

(Structure of bag body)
In the bag body 10, two films 11 are laminated, and a pair of side seal portions 12, a bottom seal portion 13, and a top seal portion 14 are formed on both overlapping edges.
The bag body 10 forms a storage space 15 for storing the object to be packaged inside.
Further, the bag body 10 has a position where both ends of the zipper tape 20 in the longitudinal direction intersect with the peripheral edge of the side seal portion 12 of the bag body 10 and a peripheral edge of the band-shaped member 30 and the side seal portion 12 of the bag body 10. A notch 16 is notched and formed between the intersecting position and the position.

As the 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) can be used. As the multilayer film, biaxially stretched polypropylene (Oriented Polypropylene: OPP), biaxially stretched polyethylene terephthalate (OPET), biaxially stretched nylon (ONy), cast polypropylene (CPP), etc. are used as the surface substrate. Can be used. The multilayer film may be configured to include an inorganic layer such as aluminum vapor deposition or aluminum foil lamination for the purpose of so-called gas barrier or light shielding.
The film 11 is not particularly limited as long as it is a material for packaging bags, but it is preferable that the film 11 has a thickness dimension of 10 μm or more, for example. If the thickness dimension is less than 10 μm, the seal strength and the bag strength may be weakened.

(Composition of zipper tape)
As shown in FIGS. 1 to 3, the zipper tape 20 includes a male member 21 and a female member 22.
The male member 21 has a male side band-shaped base portion 21A formed in a longitudinal band shape, and a male portion 21B provided on the male side band-shaped base portion 21A so as to project from a cross-sectional anchor along the longitudinal direction.
Further, the male side strip-shaped base portion 21A is provided with a male side concave groove 21A1 which is a non-bonding region with the film 11 along the longitudinal direction on the surface opposite to the surface on which the male portion 21B protrudes.
Further, the male side strip-shaped base portion 21A is provided with a male-side hook portion 21A2 projecting to the side where the male portion 21B protrudes from one edge on the top seal portion 14 side along the longitudinal direction of the male-side strip-shaped base portion 21A. ing. The male side hook portion 21A2 is formed in a barb shape in which the tip thereof projects obliquely toward the male portion 21B side.

Further, the male side strip-shaped base portion 21A is provided with a plurality of male side ribs 21A3 protruding along the longitudinal direction of the male side strip-shaped base portion 21A on the surface on the side on which the male portion 21B protrudes. These male-side ribs 21A3 are formed so that the protruding dimensions are shorter than those of the male-side hook portion 21A2.
The male member 21 is joined to and attached to the bag body 10 along the top seal portion 14 of the bag body 10 so that the male side concave groove 21A1 is located on the top seal portion 14 side. The state of this joining is the surface of the male side strip-shaped base 21A opposite to the protruding side of the male portion 21B, and is orthogonal to the width direction of the male side strip-shaped base 21A (longitudinal direction of the male strip-shaped base 21A). The portions on both ends in the vertical direction with respect to the paper surface of FIG. 3 are joined to the bag body 10.

The female member 22 has a female side band-shaped base 22A formed in a longitudinal band shape, and a female part 22B that is provided on the female side band-shaped base 22A so as to project along the longitudinal direction and the male part 21B can be engaged and disengaged. ing. Then, the engaging portion 23 is formed by the male portion 21B and the female portion 22B.
Further, the female side strip-shaped base portion 22A is provided with a female side concave groove 22A1 which is a non-bonding region with the film 11 along the longitudinal direction on the surface opposite to the surface on which the female portion 22B protrudes.
Further, the female side strip-shaped base portion 22A is provided with a female-side hook portion 22A2 projecting to the side where the female portion 22B protrudes from one edge on the top seal portion 14 side along the longitudinal direction of the female-side strip-shaped base portion 22A. ing. The female side hook portion 22A2 is formed in a dovetail shape in which the tip thereof projects diagonally toward the female portion 22B side.

Further, the female side strip-shaped base portion 22A is provided with a plurality of female-side ribs 22A3 protruding along the longitudinal direction of the female-side strip-shaped base portion 22A on the surface on the side on which the female portion 22B protrudes. The female side ribs 22A3 are formed so that the protruding dimension is shorter than that of the female side hook portion 22A2.
Then, in the female member 22, the female side concave groove 22A1 is located on the top seal portion 14 side along the top seal portion 14 of the bag body 10, and the female member 22 is located on both ends in the width direction as in the male member 21. The portion is joined to and attached to the bag body 10.
The female side strip-shaped base portion 22A is formed so that the width dimension from the engaging portion 23 to one edge on the top seal portion 14 side is longer than the width dimension from the male side strip-shaped base portion 21A to one edge on the top seal portion 14 side. ing. As a result, the male side hook portion 21A2 and the female side hook portion 22A2 do not interfere with each other.

The thickness of the strip member 30 (30A, 30B) is substantially the same as the thickness dimension at the position of the male rib 21A3 of the male strip base 21A and the position of the female rib 22A3 of the female strip base 22A. They are formed in strips of the same thickness.
The band-shaped members 30 (30A, 30B) are located on the top seal portion 14 side with respect to the male member 21 and the female member 22, and are attached to the bag body 10 in parallel via the gap 24, respectively.

The zipper tape 20 and the pair of strip members 30 (30A, 30B) are formed by using, for example, a polyolefin resin. The zipper tape 20 may be formed so as to have a shape-retaining property that retains the state by bending in the longitudinal direction and to maintain the opened opening.
As the polyolefin-based resin, for example, a polyethylene-based resin such as low-density polyethylene or a linear low-density polyethylene, or a polypropylene-based resin is preferable. In particular, a polypropylene-based resin that does not easily stretch is preferable. As the polypropylene-based resin, homopolypropylene (H-PP), block polypropylene (B-PP), random polypropylene (R-PP), propylene-ethylene-butene 1 random ternary copolymer and the like can be used.
The strip-shaped member 30 and the zipper tape 20 may have the same resin composition or different resins.

At least one of the male side band-shaped base 21A and the female side band-shaped base 22A and at least one of the pair of band-shaped members 30 (30A, 30B), among the end portions facing each other through the gap 24. At least one of them is provided with a protrusion 25 that projects toward at least one of the other. In FIG. 3, the protruding portion 25 is formed in each of the male side band-shaped base portion 21A, the female side band-shaped base portion 22A, the band-shaped member 30A, and the band-shaped member 30B, but the present invention is not limited to this, and the male side band-shaped base portion 21A is not limited thereto. And only the female side band-shaped base 22A, and may be formed only on the band-shaped member 30A and the band-shaped member 30B.
The protruding portion 25 is formed to be thinner than the thickness dimension of the male side strip-shaped base portion 21A and the female side strip-shaped base portion 22A and the thickness dimension of the strip-shaped member 30 (30A, 30B).

[Manufacturing of bag body]
Next, the production of the bag body before the packaged object is filled will be described.
In addition, various methods can be adopted for manufacturing the bag body. The manufacturing method and manufacturing apparatus of the present invention are not particularly limited as long as they are a method and an apparatus capable of manufacturing a bag body, but the bag body can be suitably manufactured by, for example, the method described with reference to FIG.

(Manufacturing equipment)
FIG. 4 is a schematic perspective view showing a bag body manufacturing apparatus. FIG. 5 is a cross-sectional view showing a zipper tape before the strip-shaped member is separated. FIG. 6 is a plan view showing the separation positioning device. FIG. 7 is a side view showing the separation positioning device. FIG. 8 is an end view showing the separation positioning device.

The manufacturing apparatus 5 shown in FIG. 4 has a so-called three-way bag making machine as a basic configuration. The manufacturing apparatus 5 manufactures a bag 1A with a zipper tape. The bag 1A with a zipper tape is a bag body 1 in which the bottom seal portion 13 is not formed before the packaged object is filled.
The manufacturing apparatus 5 comprises a zipper tape body 2 in which a male member 21 and a female member 22 of the zipper tape 20 and a band-shaped member 30 (30A, 30B) are connected in advance to form an integral structure, and the zipper tape 20 and the band-shaped member 30 are integrally formed. After separating into 30 and the film 11, it is joined to the film 11 to make a bag.

Here, in the zipper tape body 2, as shown in FIG. 5, the male member 21 and the female member 22 of the zipper tape 20 and the strip-shaped member 30 (30A, 30B) are connected to the male side connecting portion 21A4 or the female side connecting portion 22A4. It is a structure connected in a series by. The male side connecting portion 21A4 and the female side connecting portion 22A4 are formed to be thinner than the thickness dimension of the male side strip-shaped base portion 21A and the female side strip-shaped base portion 22A.
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 portion 20A1 formed in a longitudinal band shape, and a male portion 21B provided in the male side band-shaped portion 20A1 along the longitudinal direction.
The male side band-shaped portion 20A1 is provided in series on the male side band-shaped base portion 21A formed in a longitudinal band shape and the male portion 21B projects, and the male side provided in series on the end surface of the male side band-shaped base portion 21A on the top seal portion 14 side in the width direction. It includes a connecting portion 21A4 and a male side strip-shaped member 30A provided in series at the end portion of the male side connecting portion 21A4 in the width direction.

The female material 20B has a female side band-shaped portion 20B1 formed in a longitudinal band shape, and a female portion 22B provided in the female side band-shaped portion 20B1 along the longitudinal direction.
The female-side band-shaped portion 20B1 is a series of female-side connections provided on the end face of the female-side band-shaped base portion 22A, which is formed in a longitudinal band shape and the female portion protrudes, and the top seal portion 14 side in the width direction of the female-side band-shaped base portion 22A. The portion 22A4 and the female side strip-shaped member 30B provided in series at the end portion of the female side connecting portion 22A4 in the width direction are provided.

The male side connecting portion 21A4 and the female side connecting portion 22A4 are 100 μm or less, preferably 20 μm or more and 100 μm or less, and particularly preferably 20 μm or more and 80 μm or less. Within this range, the zipper tape 20 and the strip-shaped member 30 can be separated at the positions of the male side connecting portion 21A4 and the female side connecting portion 22A4 without being inadvertently torn at other parts of the zipper tape body 2. ..

Then, the manufacturing apparatus 5 includes a pair of tape delivery devices 51 that send out the zipper tape body 2 in which the male portion 21B and the female portion 22B are engaged, and the male side connecting portion 21A4 and the female side connecting portion 22A4 of the zipper tape body 2. Separation, that is, tearing, the separation positioning device 53 for separating and positioning the zipper tape 20, the male side strip member 30A, and the female side strip member 30B, and the zipper tape 20 and the strip member 30 (30A, 30B) on the film 11. Each of them is provided with a bag making device 54, which is heat-sealed to form a bag 1 from a film 11, and the like.

The tape delivery device 51 detachably attaches a tape winding roll 511 around which the zipper tape body 2 in which the male portion 21B and the female portion 22B are engaged is attached, 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 delivered at a constant speed, and any delivery method can be applied, such as a configuration in which the zipper tape body 2 is intermittently delivered.

As shown in FIGS. 6 to 8, the separation positioning device 53 includes a separation unit 531, a pair of guidance units 532, and a positioning unit 533.
The separating portion 531 is torn by the male side connecting portion 21A4 and the female side connecting portion 22A4 of the zipper tape body 2 to form a thin flat plate shape that separates the zipper tape 20 into the male side strip-shaped member 30A and the female side strip-shaped member 30B. Has been done. The separation portion 531 is arranged so that the longitudinal direction is orthogonal to the direction in which the zipper tape body 2 is delivered from the tape delivery device 51, that is, the longitudinal direction is along the width direction of the zipper tape body 2 to be delivered.
The separation portion 531 is preferably made of metal, which has low friction with the zipper tape body 2 and is not easily worn.
In the separation portion 531, the surface 531A on the side opposite to the delivery direction of the zipper tape body 2 is at least curved, so that the separated zipper tape 20 and the strip-shaped members 30 (30A, 30B) can be smoothly separated. It is preferable because it slides. In FIGS. 6 and 7, the separation portion 531 is a thin plate-shaped member having a quadrangular cross section having a curved surface 531A.

The pair of guiding portions 532 so that the male side band-shaped member 30A or the female side band-shaped member 30B separated by the separating portion 531 has a predetermined gap 24 with respect to the male-side band-shaped base 21A and the female-side band-shaped base 22A. Separate them from each other.
These guide portions 532 are formed of, for example, a rod-shaped support portion 532A formed of a metal rod-shaped member and attached to a housing (not shown) of the manufacturing apparatus 5, and an annular portion 532B provided at one end of the support portion 532A. have. The inner diameter of the annular portion 532B is formed to be equal to or slightly larger than the width dimension of the male side band member 30A or the female side band member 30B, and the male side band member 30A or the female side band member 30B can be inserted into the inner peripheral side. It has become.
Further, the annular portion 532B is formed in a coil shape so that the male side band-shaped member 30A or the female side band-shaped member 30B can be inserted from the outer peripheral side to the inner peripheral side.
Then, in these guide portions 532, the annular portion 532B is sent out in the width direction of the zipper tape body 2 (the direction of the arrow of the zipper tape body 2 shown in FIG. 6 which is the longitudinal direction of the zipper tape body 2). A support portion 532A is attached to the housing so as to be movable along each of them. By the movement of the annular portion 532B, the gap 24 with respect to the male side band-shaped base portion 21A and the female side band-shaped base portion 22A can be adjusted.

The positioning portion 533 moves in the width direction, which is a direction orthogonal to the longitudinal direction (the direction of the arrow in which the strip-shaped member 30 shown in FIG. 6 is delivered) of the male-side strip-shaped member 30A and the female-side strip-shaped member 30B to be sent out. regulate.
In the positioning portion 533, a pair of columnar objects 533A are arranged so as to be able to abut on both sides (hereinafter, also referred to as both ends in the width direction) in the longitudinal direction of the male side strip member 30A and the female side strip member 30B.
The columnar object 533A is formed in a columnar shape, and is arranged so that the axial core direction is along the thickness direction of the male side band-shaped member 30A and the female side band-shaped member 30B, respectively.
The pair of columnar objects 533A are arranged in a positional relationship that intersects the width direction of the male side band member 30A and the female side band member 30B, and the male side band member 30A, the female side band member 30B, and the columnar object 533A. It is preferable to disperse the friction positions of the above in the delivery direction.

Here, it is preferable that the distance between the guiding portion 532 and the positioning portion 533 is set wide. For example, the range is 30 mm or more, preferably 50 mm or more.
By setting the distance between the guiding portion 532 and the positioning portion 533 to a certain extent, when the male side strip-shaped member 30A and the female side strip-shaped member 30B are introduced into the positioning portion 533, they are oblique to the transport direction. It can be suppressed from being introduced. Therefore, meandering due to being obliquely introduced into the positioning portion 533 can be prevented, and the male side band-shaped member 30A and the female side band-shaped member 30B can be positioned with high accuracy.

The bag making device 54 is a pair of heat-sealing the film 11 unwound from the film winding roll 111 and the zipper tape 20 and the strip-shaped member 30 (30A, 30B) after being fed and separated from the tape feeding device 51. A seal portion 541, a top seal bar 542 forming the top seal portion 14, a side seal bar 543 forming the side seal portion 12, and a notch forming portion (not shown) forming a notch hole at the position of the side seal portion 12. , The first cut portion 545 to be cut between the zipper tapes 20 and each side seal portion 12 are cut so as to cross the notch hole, and the top seal portion 14 and the side seal portion 12 are heat-sealed to form the notch 16. A second cutting portion 546 for obtaining the bag 1A with the zipper tape provided is provided.
The seal portion 541 heat-seals a pair of separators 541A formed to have a thickness dimension substantially the same as the height dimension of the engaging portion 23, a film 11, a zipper tape 20, and a strip-shaped member 30 (30A, 30B). It is provided with a seal bar 541B and the like. The pair of separators 541A intervene between the engaging portions 23 to be engaged with each other, and restrict the movement of the male side strip-shaped base portion 21A and the female side strip-shaped base portion 22A in the directions close to each other to prevent the joining. is there. The sealing portion 541, the separating portion 531 and the positioning portion 533 constitute the joining portion 55 of the present invention.
Further, the columnar object 533A of the positioning portion 533 is arranged on the separator 541A so as to be adjacent to the seal bar 541B on the upstream side in the delivery direction of the zipper tape body 2.
Then, as a next step of the manufacturing apparatus 5, a filling apparatus (not shown) for filling the object to be packaged from the opening inlet of the formed bag 1A with zipper tape is provided.

(Manufacturing method of bag body)
Next, a method of manufacturing the bag 1A with a zipper tape using the manufacturing apparatus 5 will be described with reference to the drawings.

The method for manufacturing the bag 1A with a zipper tape is, for example, manufactured by using the manufacturing apparatus 5 for making a three-way bag shown in FIG. 4, and is separated into a tape delivery step of feeding out the zipper tape body 2 and a zipper tape 20 and a strip-shaped member 30. The separation positioning step and the bag making step of heat-sealing the zipper tape 20 and the strip-shaped members 30 (30A, 30B) to the film 11 to form the bag 1A with the zipper tape from the film 11 are carried out.

In the tape sending step, the zipper tape body 2 is pulled out from the tape winding roll 511 and sent to the separation positioning device 53.
In the separation positioning step, the zipper tape body 2 is torn by the male side connecting portion 21A4 and the female side connecting portion 22A4 of the zipper tape body 2 and separated into the zipper tape 20 and the strip-shaped member 30 (30A, 30B). , A positioning step of positioning in a predetermined gap 24 is performed.
That is, the torn strip-shaped member 30 (30A, 30B) passes through the inner peripheral side of the annular portion 532B of the guide portion 532 and has a predetermined gap 24 with respect to the male-side strip-shaped base 21A and the female-side strip-shaped base 22A. Guided to. After that, the strip-shaped members 30 (30A, 30B) are sent out to the seal portion 541 of the bag making device 54 in a state where the movement in the width direction is restricted and positioned between the pair of columnar objects 533A of the positioning portion 533. ..

In the bag making step, a sealing step is carried out in which the male member 21 and the female member 22 positioned by the pair of separators 541A and the pair of strip-shaped members 30 (30A, 30B) are heat-sealed by the seal bar 541B, respectively. .. The separation step, the positioning step, and the sealing step constitute a step of joining the zipper tape 20 and the strip-shaped member 30 (30A, 30B) of the present invention to the bag body.
Here, the male side band-shaped base portion 21A and the female side band-shaped base portion 22A and the band-shaped member 30 (30A, 30B) have the same thickness dimension due to the male side rib 21A3 and the female side rib 22A3. From this, at the time of heat sealing, the male member 21 or the female member 22 and the strip-shaped member 30 can be joined to the film 11 in one operation by using one seal bar 541B.

After that, the top seal portion 14 is formed by the top seal bar 542. Subsequently, the film 11 is heat-sealed by the side seal bar 543 to form the side seal portion 12. After that, a notch forming step of penetrating the notch hole is carried out at the position of the side seal portion 12 and between the zipper tape 20 and the band-shaped member 30 (30A, 30B) by the notch forming portion. .. After that, it is cut by the first cutting portion 545 and the second cutting portion 546, the top seal portion 14 and the side seal portion 12 are sealed on three sides, and the zipper tape-attached bag 1A having the notch 16 is cut out.
Then, a predetermined amount of the object to be packaged is charged into the obtained bag 1A with zipper tape from an opening slot by a filling device (not shown), the edge of the slot is sealed to form the bottom seal portion 13, and the bag is packaged. A bag body 1 containing an object is obtained.

[Use of bag body]
Next, a method of using the bag body 1 will be described with reference to FIG.
FIG. 9 is a cross-sectional view illustrating the opening state of the bag body with the zipper tape.

First, when the user first takes out the packaged object from the bag body 1, the film 11 is torn from the notch 16 and the pair of top seal portions 14 side is cut off to open the bag.
At the time of this opening, the tearing direction is controlled by the thick male side hook portion 21A2 and female side hook portion 22A2 of the zipper tape 20, and the strip-shaped member 30 (30A, 30B), and the film 11 is torn linearly. Is done.

Then, in order to take out the packaged object previously stored in the bag body 10 or to newly store the packaged object in the bag body 10, the opening edge of the opened bag body 10 is picked to widen the opening. To do.
When the opening edge is picked, the male side hook portion 21A2 and the female side hook portion 22A2 face the opening edge, so that they are non-slip. Further, the male rib 21A3 and the female rib 22A3 become non-slip, and the opening can be easily widened.

At this time, as shown in FIG. 9, the male side band-shaped base portion 21A and the female side band-shaped base portion 22A are not joined to the film 11 at the positions of the male side concave groove 21A1 and the female side concave groove 22A1. Further, the thickness is thinned at the positions of the male side concave groove 21A1 and the female side concave groove 22A1. Therefore, the male side concave groove 21A1 and the female side concave groove 22A1 are in a state of being easily bent. Therefore, the opening edge is widened so that the finger of the opening person can easily enter the opening edge, and the work of widening the opening becomes easy.
By the work of widening the opening, the male portion 21B and the female portion 22B are disengaged, and the bag body 10 is opened so that the packaged object can be taken out or stored.
Then, after taking out or storing the packaged object, the bag body 10 is resealed by engaging the male portion 21B and the female portion 22B again.

[Effect of Embodiment]
In the first embodiment, the strip-shaped member 30 (30A, 30B) is separated from the male-side strip-shaped base portion 21A and the female-side strip-shaped base portion 22A by the separating portion 531. Then, the guide portion 532 separates the band-shaped member 30 (30A, 30B) from the male-side band-shaped base 21A and the female-side band-shaped base 22A in a predetermined gap 24. After that, the positioning portion 533 regulates the movement of the strip-shaped member 30 (30A, 30B) in the width direction.
Therefore, the strip-shaped member 30 (30A, 30B) is positioned with respect to the male-side strip-shaped base 21A and the female-side strip-shaped base 22A in a plurality of stages, that is, in two stages, and can be positioned accurately. Further, since the band-shaped member 30 (30A, 30B) is separated from the male-side band-shaped base 21A and the female-side band-shaped base 22A, only one zipper tape body 2 is used at the time of bag making, the number of parts can be reduced, and the bag making can be performed. Initial setting can be done easily. Further, by positioning in two steps, highly accurate positioning adjustment of the gap 24 can be easily performed. As a result, adjustments for making various bag bodies 1 are easy, and the versatility is excellent.

Then, the strip-shaped members 30 (30A, 30B) are separated by the male side connecting portion 21A4 and the female side connecting portion 22A4 of the zipper tape body 2 sent out from the tape sending device 51.
Therefore, the strip-shaped members 30 (30A, 30B) can be easily separated from the male-side strip-shaped base portion 21A and the female-side strip-shaped base portion 22A.

Further, the strip-shaped member 30 (30A, 30B) is positioned by the positioning portion 533 arranged adjacent to the upstream side of the seal portion 541. Therefore, the strip-shaped members 30 (30A, 30B) whose movement is restricted can be immediately joined to the film 11. Therefore, the strip-shaped members 30 (30A, 30B) separated from the male-side strip-shaped base portion 21A and the female-side strip-shaped base portion 22A can be accurately bonded to the film 11.

Further, the male portion 21B and the female portion 22B to be engaged with each other are restricted from moving by a pair of separators 541A for joining the male side strip-shaped base portion 21A and the female side strip-shaped base portion 22A to the film 11. Therefore, the male-side strip-shaped base 21A and the female-side strip-shaped base 22A can also be positioned by using the member for sealing, and the male-side strip-shaped base 21A and the female-side strip-shaped base 22A and the strip-shaped member 30 (30A, 30B) can be positioned. It can be bonded to the film 11 with higher accuracy.

Further, the positioning unit 533 is arranged on the pair of separators 541A. Therefore, a configuration in which the positioned strip-shaped members 30 (30A, 30B) can be immediately bonded to the film 11 can be easily obtained, and the band-shaped members 30 (30A, 30B) can be easily and accurately bonded.

Then, the male side connecting portion 21A4 and the female side connecting portion 22A4 formed on the thin wall of the zipper tape body 2 tear and separate the band-shaped members 30 (30A, 30B) by the thin flat plate-shaped separating portion 531. In particular, the separation portion 531 has a curved surface on the surface 531A in the direction opposite to the direction in which the zipper tape body 2 is sent out. Therefore, the strip-shaped member 30 (30A, 30B) can be easily torn without causing a large resistance, and the strip-shaped member 30 (30A, 30B) can be easily separated with a simple structure of a thin flat plate.

Further, a pair of columnar objects 533A are brought into contact with both edges of the strip-shaped member 30 (30A, 30B) in the width direction to restrict movement. Therefore, the movement of the strip-shaped member 30 (30A, 30B) in the width direction can be more reliably regulated, and the strip-shaped member 30 (30A, 30B) can be positioned with higher accuracy with a simple configuration.
In particular, since the columnar object 533A formed into a columnar shape is used, it is possible to perform positioning with higher accuracy without causing a large resistance during positioning.

Further, the strip-shaped member 30 (30A, 30B) is inserted through the inner peripheral side of the annular portion 532B of the guide portion 532, and the strip-shaped member 30 (30A, 30B) is inserted into the male-side strip-shaped base 21A and the female-side strip-shaped base 22A. Are separated. Therefore, with a simple configuration using the member of the annular portion 532B, the strip-shaped member 30 (30A, 30B) can be easily guided to a predetermined position and positioned.

[Modification example]
The best configuration for carrying out the present invention and the like are disclosed in the above description, but the present invention is not limited thereto. That is, although the present invention has been described mainly with respect to a specific embodiment, the material, quantity, and other details with respect to the above-described embodiments without departing from the scope of the technical idea and purpose of the present invention. Various modifications can be made by those skilled in the art in various configurations.

For example, in manufacturing the bag body 1, the zipper tape body 2 having the thin-walled male side connecting portion 21A4 and the female side connecting portion 22A4 has been described, but this is not the case in the present invention.
For example, the male side connecting portion 21A4 and the female side connecting portion 22A4 are made of the same material as the male side strip-shaped base portion 21A and the female side strip-shaped base portion 22A and the pair of strip-shaped members 30 (30A, 30B), and have thickness and width dimensions. May be formed in the same manner, and the male side band-shaped base portion 21A and the female side band-shaped base portion 22A and the pair of band-shaped members 30 (30A, 30B) may be formed so as to be continuous in a series. In such a configuration, the male side connecting portion 21A4 and the female side connecting portion 22A4 may be cut by a cutting blade or the like to separate the strip-shaped member 30 (30A, 30B) from the male side strip-shaped base portion 21A and the female side strip-shaped base portion 22A. ..
Further, the zipper tape body 2 may have a configuration in which, for example, the zipper tape 20 and the strip-shaped members 30 (30A, 30B) are integrally connected in parallel by using a release tape or the like as a connecting portion.
Further, both of the pair of band-shaped members 30 (30A, 30B) are not limited to the case where they are separated from the male side band-shaped base portion 21A and the female side band-shaped base portion 22A, and only one of them may be used.

In the above embodiment, the bag body 1 provided with the zipper tape 20 has been described, but the bag body 1 of the present invention can be applied to the bag body 1 not provided with the zipper tape 20.
For example, in the bag body 1 shown in FIGS. 2 and 3, a pair of strip-shaped bases (not shown) may be used instead of the male member 21 and the female member 22. These band-shaped bases form a guide tape together with the band-shaped members 30A and 30B arranged side by side, and have the same shape as the band-shaped members 30A and 30B. That is, the bag body 1 is joined to the inner surface of the bag body 10 in parallel with each of the pair of band-shaped bases (not shown) and the pair of band-shaped bases joined to the inner surface of the bag body 10 via a gap. It may be the one provided with the strip-shaped members 30A and 30B. A protruding portion 25 shown in FIG. 3 is formed at least one of the adjacent strip-shaped bases and the end portions of the strip-shaped members 30A and 30B facing each other.
In order to manufacture the bag body 1, the band-shaped members 30A and 30B are separated from at least one of the pair of band-shaped bases, the separated band-shaped members 30A and 30B are separated from the pair of band-shaped bases, and the band-shaped members 30A are separated. , 30B and the pair of strip-shaped bases are kept constant, and the film 11 is joined to the strip-shaped base and the strip-shaped members 30A and 30B.

Although the positioning unit 533 is arranged in the separator 541A, it may be arranged in the housing of the manufacturing apparatus 5, for example.
Then, not only when both edges of the strip-shaped member 30 (30A, 30B) in the width direction are positioned by the pair of columnar objects 533A, the inner peripheral side of the annular member is inserted through, for example, the guide portion 532. It can be positioned with various members, such as positioning both edges.
Further, the configuration is not limited to positioning both edges in the width direction, and for example, only one edge side in the width direction may be positioned by one columnar object 533A.

Further, the positioning of the zipper tape 20 is not limited to the case where the pair of separators 541A is used.
For example, when making a bag using a rotating drum or the like, positioning may be performed by a concave groove provided on the peripheral surface of the rotating drum.
Similarly, when the bag is made using the rotary drum, the positioning portion 533 may be a concave groove provided on the peripheral surface of the rotary drum.
Then, a plurality of positioning units 533 may be provided for positioning in a plurality of stages.

Further, the separation portion 531 is not limited to a structure in which the separation portion 531 is torn by a thin plate-shaped member having a quadrangular cross section. For example, the cross section of the separation portion 531 may have a triangular shape, a polygonal shape, a circular shape, a semicircular shape, an elliptical shape, a flat shape, or the like, for example, a needle-shaped member, a wire, or a rotating body such as a roller. It can have any shape that can be torn and separated. When a wire is used, its diameter is not limited, and may be, for example, φ0.5 mm or less. Further, it may be cut with a cutting tool such as a cutter blade. Even when a member such as this cutter blade is used, it is possible to prevent the cut portion from meandering by arranging the male side strip-shaped base portion 21A and the female side strip-shaped base portion 22A so as to be parallel to the plane.
The surface 531A on the side opposite to the delivery direction of the zipper tape body 2 is not limited to a curved surface, and a thin plate-shaped or prismatic member may be used.
Further, for example, as shown in FIG. 10, the strip-shaped members 30 (30A, 30B) may be separated by a pair of separating portions 531.

Further, the guide portion 532 is not limited to the one formed by bending a metal rod-shaped member.
For example, as shown in FIG. 11, by hanging over at least two or more rollers 532C, the strip-shaped member 30 (30A, 30B) is placed in a predetermined gap 24 with respect to the male-side strip-shaped base 21A and the female-side strip-shaped base 22A. It may be configured to be separated by.
In particular, as shown in FIG. 12, by providing the concave groove 532D into which the strip-shaped member 30 (30A, 30B) is inserted on the peripheral surface of the roller 532C, it is possible to guide the roller to a predetermined position with higher accuracy.
Further, a configuration in which a pair of guide portions 532 is provided is illustrated. For example, two strip-shaped members 30 (30A, 30B) are inserted through the annular portion 532B of one guide portion 532 to guide the guide portion 532 to a predetermined position. You may.

The manufacturing apparatus 5 may not be provided with the induction unit 532. That is, in the separation positioning step, the separated band-shaped members 30 (30A, 30B) are restricted from moving in the width direction from the male-side band-shaped base 21A and the female-side band-shaped base 22A via the gap 24 by the positioning unit 533. You may try to do it.

Then, the band-shaped member 30 serving as the guide tape for opening is separated from the zipper tape 20 and described. However, as the band-shaped member 30 to be separated, not only the guide tape but also one end portion is pulled out from the bag body 10. It also includes a cut tape for cutting and opening the film 11 with.

1 ... Bag body, 5 ... Manufacturing equipment, 10 ... Bag body, 11 ... Film, 15 ... Storage space, 20 ... Zipper tape, 21 ... Male member, 21A ... Male side strip-shaped base, 21A4 ... Male side connection as connecting part Part, 21B ... Male part, 22 ... Female member, 22A ... Female side band-shaped base, 22A4 ... Female side connecting part as connecting part, 22B ... Female part, 24 ... Gap, 25 ... Protruding part, 30 ... Band-shaped member, 30A ... Male side band member, 30B ... Female side band member, 51 ... Tape delivery device, 53 ... Separation positioning device, 331 ... Separation part, 532 ... Guidance part, 532B ... Annular part, 533 ... Positioning part, 533A ... Columnar object , 541 ... Seal part, 541A ... Separator, 55 ... Joint part

Claims (12)

It is a manufacturing method for manufacturing a bag body in which tape is bonded to the bag body.
The tape having a pair of strip-shaped bases and a strip-shaped member provided at the edge of at least one of the pair of strip-shaped bases along the longitudinal direction of the strip-shaped base is composed of at least one film. The step of joining to the film, which can be the bag body and has a storage space capable of storing the object to be packaged, is
Separating said band-shaped member, from at least one of said pair of strip-like base portion,
The separated strip, from at least one of the belt-shaped member is separated before Symbol band-like base portion, is spaced along the at least one longitudinal among those belt-shaped base portion and a step wherein to regulate the movement in a direction crossing the longitudinal direction of the belt-shaped member, which the distance between at least one of the separated strip before Symbol band-like base portion constant,
A method for manufacturing a bag body, which comprises carrying out a step of joining the film, the strip-shaped base portion, and the strip-shaped member. It is a manufacturing method for manufacturing a bag body in which a zipper tape is bonded to the bag body.
A male side strip-shaped base that can be joined to the inner surface of the bag body, a male member having a male portion provided on the male-side strip-shaped base, a female side strip-shaped base that can be joined to the inner surface of the bag body, and the above. A female member provided on the female side strip-shaped base and having a female portion with which the male portion can engage is provided, and the male member and at least one of the female members are provided at one end edge of the strip-shaped base. The zipper tape provided with a strip-shaped member along the longitudinal direction of the strip-shaped base is joined to the film which is composed of at least one film and can be the bag body having a storage space capable of storing an object to be packaged. The process to do
A step of separating the strip-shaped member from the strip-shaped base of at least one of the male member and the female member.
The separated strip-shaped member is separated from at least one of the strip-shaped bases from which the strip-shaped member is separated along the longitudinal direction of at least one of the strip-shaped bases, and the strip-shaped member is separated. A step of restricting movement in a direction intersecting the longitudinal direction of a member and making the distance between the separated strip-shaped member and at least one of the strip-shaped bases constant.
A method for manufacturing a bag body, which comprises carrying out a step of joining the film, the strip-shaped base portion, and the strip-shaped member. In the method for manufacturing a bag according to claim 1 or 2.
In the step of separating the strip-shaped member from the strip-shaped base,
A connecting portion that integrally connects the end edge of at least one of the pair of strip-shaped bases and the strip-shaped member, and is characterized in that the strip-shaped member is separated from the strip-shaped base of at least one of the strip-shaped bases. How to manufacture the bag body. In the method for manufacturing a bag according to any one of claims 1 to 3.
A band-shaped member separated from at least one of the pair of band-shaped bases is separated from at least one of the pair of band-shaped bases from which the band-shaped member is separated in parallel through a gap. A method for manufacturing a bag body, which comprises carrying out a process. It is a manufacturing device that manufactures a bag body with tape bonded to the bag body.
The tape having a pair of strip-shaped bases and a strip-shaped member provided at the edge of at least one of the pair of strip-shaped bases along the longitudinal direction of the strip-shaped base is composed of at least one film. The joint portion to be joined to the film, which can be the bag body and has a storage space capable of storing the packaged object, is
The belt-shaped member, a separating portion for separating from at least one of said pair of strip-like base portion,
The separated strip, from at least one of the belt-shaped member is separated before Symbol band-like base portion, is spaced along the at least one longitudinal among those belt-shaped base portion and said to regulate the movement in a direction crossing the longitudinal direction of the belt-shaped member, the positioning portion to make constant the distance between at least one of the separated strip before Symbol band-like base portion ,
A seal portion that joins the film, the strip-shaped base portion, and the strip-shaped member,
A bag body manufacturing apparatus characterized in that it is provided with. It is a manufacturing device that manufactures a bag body with a zipper tape bonded to the bag body.
Male strip-like base portion which can be bonded to the inner surface of the bag body, and wherein the male member having a male portion provided on the male side strip-like base portion is bonded to the inner surface of the bag body female side strip-like base portion, and, the female A female member provided on a side strip-shaped base and having a female portion to which the male portion can engage is provided, and the strip-shaped portion is attached to one end edge of at least one of the male member and the female member. The zipper tape provided with strips along the longitudinal direction of the base is joined to the film which is composed of at least one film and can be the bag body which has a storage space capable of storing an object to be packaged. The joint is
A separating portion that separates the strip-shaped member from the strip-shaped base portion of at least one of the male member and the female member.
The separated strip-shaped member is separated from at least one of the strip-shaped bases from which the strip-shaped member is separated along the longitudinal direction of at least one of the strip-shaped bases, and the strip-shaped member is separated. A positioning portion that regulates movement in a direction intersecting the longitudinal direction of the member and keeps a constant distance between the separated strip-shaped member and at least one of the strip-shaped base portions.
A seal portion that joins the film, the strip-shaped base portion, and the strip-shaped member,
A bag body manufacturing apparatus characterized in that it is provided with. In the bag manufacturing apparatus according to claim 5 or 6.
The separating portion cuts one side portion in the longitudinal direction of at least one of the strip-shaped base portions along the longitudinal direction to obtain the strip-shaped member from at least one of the strip-shaped base portions. A bag body manufacturing device characterized by cutting out. In the bag manufacturing apparatus according to any one of claims 5 to 7.
The strip-shaped member separated by the separating portion is provided with an guiding portion that separates the strip-shaped member in parallel with at least one of the strip-shaped members separated by the strip-shaped member through a gap. Bag body manufacturing equipment. A bag body that is composed of at least one film and has a storage space that can store the items to be packaged.
A pair of strip-shaped bases joined to the inner surface of the bag body,
At least one of the pair of band-shaped bases is provided with a band-shaped member joined in parallel to the inner surface of the bag body via a gap.
At least one of the opposite ends of the strip-shaped member and the strip-shaped base is provided with a protrusion that protrudes toward the other end.
The protruding portion is provided to be thinner than the thickness in the direction orthogonal to the longitudinal direction of the pair of strip-shaped bases and the strip-shaped members and the direction in which the pair of strip-shaped bases and the strip-shaped members are arranged. Bag body. In the bag body according to claim 9,
A bag body in which the strip-shaped member is arranged in parallel with each of the pair of strip-shaped bases. A bag body that is composed of at least one film and has a storage space that can store the items to be packaged.
A male member having a male-side band-shaped base joined to the inner surface of the bag body and a male part provided on the male-side band-shaped base, a female-side band-shaped base joined to the inner surface of the bag body, and the above. A zipper tape provided with a female member provided on a female side band-shaped base and having a female portion with which the male portion can be engaged, and a zipper tape.
At least one of the male member and the female member is provided with a strip-shaped member joined in parallel to the inner surface of the bag body via a gap.
At least one of the opposite ends of the strip-shaped member, the male-side strip-shaped base, and the female-side strip-shaped base, at least one of them has a protrusion protruding toward the other end. Is provided,
The protruding portion includes at least one of the male-side band-shaped base and the female-side band-shaped base, the longitudinal direction of the band-shaped member, and at least one of the male-side band-shaped base and the female-side band-shaped base, and the band-shaped portion. A bag body characterized in that it is provided thinner than the thickness in the direction orthogonal to the direction in which the members are lined up. In the bag body according to claim 11,
The bag body is characterized in that the strip-shaped member is arranged in parallel with each of the male-side strip-shaped base and the female-side strip-shaped base.

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