JP2016182217A - Fitting tool and bag body with fitting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting tool which functions as an unsealing tape, comprises a tear band part which can easily unseal a bag body, can suppress the complication of the bag body and the deterioration of a yield, and makes the tear band part hardly separable before being attached to a bag main body.SOLUTION: A fitting tool 10 comprises a band-shaped base material 12, and a fitting part 14 and a fitting 16 which protrude from a first face 12a of the base material 12, and extend to a longitudinal direction. The first fitting part 14 and the second fitting part 16 are fit to each other so that the base material 12 is folded at a folding part 12d, and the base material 12 has a tearable tear band part 18 which extends to a longitudinal between the first fitting part 14 and the second fitting part 16, and segments the base material 12.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fitting tool and a bag body with a fitting tool.

  As a bag body for storing food, medicine, miscellaneous goods, etc., a bag main body for storing contents, and a fitting that is attached to the inner surface of the upper portion of the bag main body and that opens and closes the opening formed at the upper portion Are widely used. As the fitting tool, for example, a first fitting member in which a male fitting portion is provided in the longitudinal direction of the belt-like base material, and a female fitting portion in which the female fitting portion is provided in the longitudinal direction of the belt-like base material. A fitting tool including two fitting members is known. By attaching the fitting tool to the inner surface of the bag body and detaching the male fitting portion and the female fitting portion, the opening of the bag body can be repeatedly opened and closed.

As a bag body with a fitting tool that can be easily opened, for example, a fitting tool is attached to the inner surface of the upper portion of the bag body in the lateral direction, and a band-shaped opening tape is further provided on the inner surface of the bag main body above the fitting tool. Has been proposed (Patent Document 1). In the bag body with a fitting tool, the end of the opening tape is picked in a state where the bag main body is sealed, and the end of the opening tape is picked and pulled to the other end side. By tearing the upper part of the bag body, it can be easily opened.
However, in the bag body with a fitting tool of Patent Document 1, since it is necessary to attach each of the fitting tool and the opening tape to the bag body, there is a problem that the bag manufacturing apparatus becomes complicated and the yield deteriorates.

  As a fitting tool, the 1st fitting member by which the male type fitting part was provided in the longitudinal direction of the strip-shaped base material, and the 2nd fitting by which the female type fitting part was provided in the longitudinal direction of the strip-shaped base material There has also been proposed a fitting tool including a tear guide piece integrally provided on the opening side of the base material of the first fitting member or the second fitting member (Patent Document 2). In the bag body with a fitting tool to which the fitting tool is attached, the tear guide piece functions as an opening tape, and the upper part of the bag body can be torn and opened by pulling the tear guide piece. Further, in the fitting tool, since the tear guide piece is integrated with the base material of the first fitting member or the second fitting member, it is possible to suppress the complexity of the bag manufacturing apparatus and the deterioration of the yield.

  However, in a fitting tool like patent document 2, in order to make tearing at the time of opening easy, it is devised so that a tear induction piece may be easily separated from a substrate. Therefore, when a force is applied to the tear guide piece in a direction away from the base material during the manufacture of the fitting tool or bag body, the tear guide piece is separated from the base material before the fitting tool is attached to the bag body. Cheap.

International Publication No. 2003/051729 International Publication No. 2006/062136

  The present invention is provided with a tear strip that tears together with the bag body so that the bag body can be easily opened, and the tear strip portion is difficult to separate before being attached to the bag body. It is an object of the present invention to provide a fitting that can suppress deterioration; and a bag body with the fitting provided with the fitting.

  The fitting tool of the present invention is provided with a belt-like base material, a first fitting portion and a second fitting member which are provided so as to protrude from the first surface of the base material and extend in the longitudinal direction, and are detachably fitted to each other. A fitting portion, and the first fitting portion and the second fitting portion are fitted in a state in which the base material is folded between the first fitting portion and the second fitting portion. The base material has a tear band portion extending in the longitudinal direction between the first fitting portion and the second fitting portion and capable of tearing so as to divide the base material.

It is preferable that the tear band portion is located near the first fitting portion or the second fitting portion in the base material.
A tear strength sigma _A of the tear strip portion, the tear strength sigma _B of the tear strip portion of the first fitting portion than in said substrate, said second than said tear strip portion of the substrate The relationship with the tear strength σ _C of the fitting portion side is preferably σ _A ≧ σ _B and σ _A ≧ σ _C.

  In the fitting tool of this invention, the 1st groove | channel and 2nd groove | channel extended in a longitudinal direction are provided between the said 1st fitting part and the said 2nd fitting part in the said 1st surface of the said base material. It is preferable that a portion between the first groove and the second groove in the base material is the tear band portion.

  The bag body with a fitting tool of the present invention includes a bag main body for storing contents, and the fitting tool of the present invention attached to the inner surface of the upper portion of the bag main body, the bag main bodies facing each other. A pair of flat portions, and the fitting is attached to at least one of the pair of flat portions such that the tear band portion is above the first fitting portion and the second fitting portion, The tear band part and the part other than the tear band part in the base material are joined to the flat part.

  It is preferable that the base material is bonded to only one of the pair of plane portions.

The fitting of the present invention includes a tear strip that tears together with the bag body so that the bag can be easily opened. The tear strip is difficult to separate before being attached to the bag body, and the bag body manufacturing apparatus is complicated. And deterioration of yield can be suppressed.
The bag body with a fitting tool of the present invention is such that the tear band portion is difficult to separate before the fitting tool is attached to the bag body, and the bag body can be easily opened using the tear band portion. The complexity and the deterioration of the yield can be suppressed.

It is sectional drawing which showed an example of the fitting tool of this invention. It is sectional drawing which shows a mode that the 1st fitting part and the 2nd fitting part in the fitting tool of FIG. 1 were made to fit. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed the other example of the fitting tool of this invention. It is sectional drawing which showed the other example of the fitting tool of this invention. It is the front view which showed the bag body with a fitting tool of this invention. It is AA sectional drawing of the bag body with a fitting tool of FIG. It is sectional drawing which showed a mode that the bag body with a fitting tool of FIG. 7 was opened. It is sectional drawing which showed 1 process of the manufacturing method of the bag body with a fitting tool of this invention. It is sectional drawing which showed 1 process of the manufacturing method of the bag body with a fitting tool of this invention.

[Fitting tool]
Hereinafter, an example of the fitting of the present invention will be described with reference to FIGS. 1 and 2. FIG.1 and FIG.2 is sectional drawing when the fitting tool of this embodiment is cut | disconnected in the orthogonal | vertical direction with respect to the longitudinal direction of a base material.

As shown in FIG. 1, the fitting 10 of the present embodiment has a belt-like base material 12, a first fitting portion 14, and a second fitting that is detachably fitted to the first fitting portion 14. Part 16. The first fitting portion 14 is provided near the first side end 12b of the first surface 12a of the base 12 so as to protrude from the first surface 12a and extend in the longitudinal direction. The second fitting portion 16 is provided near the second side end 12c of the first surface 12a of the base member 12 so as to protrude from the first surface 12a and extend in the longitudinal direction.
As shown in FIG. 2, the first fitting portion 14 and the second fitting portion 16 are configured such that the base material 12 is folded at a folded portion 12 d between the first fitting portion 14 and the second fitting portion 16. It can be detachably fitted in the state.

The base 12 has a strip-shaped tear strip 18 that extends between the first fitting portion 14 and the second fitting portion 16 in the longitudinal direction of the base 12 and can be torn so as to divide the base 12. doing. The tear band portion 18 is provided closer to the first fitting portion 14 than the folded portion 12 d in the base material 12.
In a state in which the portion of the base member 12 closer to the first side end 12b than the folded portion 12d is attached to the bag body, one end portion in the longitudinal direction of the tear strip portion 18 is picked and directed toward the other end portion. By pulling, the tear band portion 18 is torn and separated. At this time, the bag body can be opened by tearing the portion of the bag body to which the tear band portion 18 is attached together with the tear band portion 18.

The tear strength σ _A of the tear band portion 18 and the tear strength σ of the portion 20 on the first fitting portion 14 side of the tear band portion 18 in the base material 12 (hereinafter referred to as “first base material portion 20”). _B and the portion 22 of the second fitting portion 16 side than the tear strip portion 18 of the substrate 12 (hereinafter, referred to as "second substrate portion 22".) the relationship between the tear strength sigma _C of, sigma _a ≧ σ _B and σ _A ≧ σ _C are preferable, σ _A > σ _B , and σ _A > σ _C are more preferable. This makes it easier to tear the tear strip 18.
The tear strength in the present invention means a value measured by Elmendorf tear strength measurement (JIS P8116).

Tear strength sigma _A tear strip portion _18, tear strength sigma _B of the first substrate portion _20, and tear strength sigma _C of the second substrate portion 22 can be adjusted by their materials.

The relationship between the tear strength σ _A1 and the tear strengths σ _{A to} σ _{C at} the boundary between the tear band portion 18 and the first base material portion 20 is σ _A1 <σ _A , σ _A1 <σ _B , and σ _A1 < σ _C. In this example, the tear strength σ _A1 is the tear strength when the substrate 12 is torn along the first groove 24a.
The relationship between the tear strength σ _A2 and the tear strengths σ _{A to} σ _{C at} the boundary between the tear band portion 18 and the second base material portion 22 is σ _A2 <σ _A , σ _A2 <σ _B , and σ _A2 < σ _C. In this example, the tear strength σ _A2 is the tear strength when tearing the substrate 12 along the second groove 24b.
The tear strength σ _A1 and the tear strength σ _A2 may be the same or different.

The ratio (σ _A1 / σ _B ) between the tear strength σ _A1 and the tear strength σ _{B of} the first base material portion 20 at the boundary between the tear band portion 18 and the first base material portion 20 is 1/20 to 10/20. Is preferable, and 2/20 to 7/20 is more preferable. If the ratio (σ _A1 / σ _B ) is equal to or less than the upper limit value, it becomes easier to tear the tear band portion 18. If the ratio (σ _A1 / σ _B ) is less than or equal to the lower limit value, there is a possibility of tearing.
The preferred range of the ratio (σ _A2 / σ _C ) between the tear strength σ _A2 and the tear strength σ _{C of} the second substrate portion 22 at the boundary between the tear band portion 18 and the second substrate portion 22 is the ratio (σ _A1 This is the same as the preferable range of / σ _B ).

The tear strength σ _{A1 at} the boundary between the tear band portion 18 and the first base material portion 20 and the tear strength σ _{A2 at} the boundary between the tear band portion 18 and the second base material portion 22 are preferably 10 to 200, and preferably 20 to 150. Is more preferable. It is easier if the tear strength σ _{A1 at} the boundary between the tear band portion 18 and the first base material portion 20 and the tear strength σ _{A2 at} the boundary between the tear belt portion 18 and the second base material portion 22 are not more than the upper limit values. Can be torn.

  The width of the tear band portion 18 is determined by changing the tear band portion 18 together with the bag body in accordance with the tear band portion 18 in the substrate 12, the material of the first substrate portion 20 and the second substrate portion 22, the material of the bag body, and the like. What is necessary is just to set suitably in the range which can be torn. For example, the aspect which makes the width | variety of the tear strip part 18 1-10 mm is mentioned.

In this example, a first groove 24 a and a second groove 24 b extending in the longitudinal direction are formed between the first fitting portion 14 and the second fitting portion 16 on the first surface 12 a of the base material 12. In addition, the portion between the first groove 24 a and the second groove 24 b in the base material 12 is a tear band portion 18. That is, a first groove 24a extending in the longitudinal direction is formed at the boundary between the tear band portion 18 and the first substrate portion 20 in the first surface 12a of the substrate 12, and the tear band portion 18 and the second substrate portion are formed. A second groove 24 b extending in the longitudinal direction is formed at the boundary between the first and second grooves 22.
Thus, by forming two grooves on both sides in the width direction of the tear strip portion, it becomes easier to tear the tear strip portion.

  In this example, the cross-sectional shapes of the first groove 24a and the second groove 24b are triangular. In addition, the cross-sectional shape of the 1st groove | channel 24a and the 2nd groove | channel 24b should just be a shape in which tearing of the tear strip part 18 becomes easy, and rectangular shape, semicircle shape, etc. may be sufficient as it.

In this example, a third groove 24c extending in the longitudinal direction is formed on the first surface 12a of the folded portion 12d of the substrate 12. Thereby, it becomes easy to fold the base material 12 by the folded portion 12d with the first surface 12a facing inward.
The cross-sectional shape of the third groove 24c is triangular in this example. The cross-sectional shape of the third groove 24c may be any shape as long as the base material 12 can be easily folded back by the folded portion 12d, and may be a rectangular shape, a semicircular shape, or the like.

  The base material 12 in this example includes a heat-resistant layer 26 and a heat seal layer 28, and the heat-resistant layer 26 and the heat seal layer 28 are laminated in this order from the first surface 12a side on the first fitting portion 14 side. The portion on the second fitting portion 16 side is a single-layer film having only the heat-resistant layer 26. That is, the base material 12 of this example can weld the laminated film portion on the first fitting portion 14 side to the bag body by heat sealing, and the single-layer film portion on the second fitting portion 16 side can be welded to the bag body by heat sealing. It is designed not to be welded.

The heat seal layer 28 is provided from the first side end 12 b to the second side end 12 c side of the tear strip 18 in the short direction of the base material 12. Further, the end portion 28 a on the second side end 12 c side in the heat seal layer 28 is located closer to the tear band portion 18 than the folded portion 12 d of the base material 12.
In the base material 12 of this example, the first base material portion 20, the tear band portion 18, and a part of the second base material portion 22 closer to the tear band portion 18 than the folded portion 12d are welded to the bag body. It has become so.

Examples of the material for the heat-resistant layer 26 include crystalline polypropylene.
The heat-resistant layer 26 may be made of one kind of resin or may be made of a resin composition containing two or more kinds of resins.

Examples of the material of the heat seal layer 28 include linear low density polyethylene, unstretched polypropylene, ethylene-vinyl acetate copolymer, ionomer, and the like.
The heat seal layer 28 may be made of one kind of resin or may be made of a resin composition containing two or more kinds of resins.

  The substrate 12 may be added with known additives such as a stabilizer, an antioxidant, a lubricant, an antistatic agent, and a colorant as necessary.

In addition, the layer structure of the base material 12 is not limited to the structure of this embodiment.
For example, a barrier layer may be formed between the heat-resistant layer and the heat seal layer. Examples of the material for the barrier layer include polyvinyl alcohol.
The entire substrate 12 may be a single layer film, or the entire substrate 12 may be a laminated film. When the whole substrate 12 is a single layer film, it may be a single layer film made of a heat seal layer, or a single layer film made of a layer other than the heat seal layer (such as a heat resistant layer). You may enable it to join to a bag main body by forming an adhesive layer with an adhesive etc. in the surface (outer surface) side.

  In this example, the length from the 1st fitting part 14 to the 1st side end 12b in the base material 12 is longer than the length from the 2nd fitting part 16 to the 2nd side end 12c. That is, in the state where the base material 12 is folded at the folded portion 12d and the first fitting portion 14 and the second fitting portion 16 are fitted, the fitting 10 is placed on the bag body so that the folded portion 12d faces upward. The second side end 12c that is not joined to the bag body is positioned above the first side end 12b. Thereby, it becomes difficult to be influenced by the contents.

  The first fitting portion 14 is a male fitting having a trunk stem portion 14a that rises from the first surface 12a of the base member 12, and a head portion 14b that is larger than the trunk portion 14a provided at the distal end portion of the trunk portion 14a. It is a joint. The 2nd fitting part 16 consists of the 1st arm part 16a and the 2nd arm part 16b which stand up from the 1st surface 12a of the base material 12 in circular arc shape, and the 1st arm part 16a and the 2nd arm This is a female fitting portion in which a recess 16c is formed by the portion 16b.

In the fitting 10, the first fitting portion 14 and the second fitting portion 16 are detachable by fitting the head portion 14 b of the first fitting portion 14 into the recess 16 c of the second fitting portion 16. Can be fitted.
The shape of the male fitting portion and the female fitting portion may be any shape as long as the bag body can be repeatedly opened and closed by attaching to and detaching from the female fitting portion. Can be used without restriction.

As materials of the first fitting portion 14 and the second fitting portion 16, materials that are usually used in known fitting portions can be used, and for example, the same materials as those mentioned for the heat-resistant layer 26 of the substrate 12 are used. Is mentioned.
The resin forming the first fitting portion 14 and the second fitting portion 16 may be one type or two or more types.

(Production method)
The manufacturing method of the fitting 10 is not specifically limited. For example, extrusion molding etc. are mentioned. When the tear band portion 18 is formed of a material different from the material of the first base material portion 20 and the second base material portion 22, two-color molding or the like can be employed.

(Function and effect)
In the fitting tool 10 described above, the portion of the heat seal layer 28 in the substrate 12 is bonded to one inner surface of the pair of flat portions of the bag body by heat sealing. In this state, the bag body can be easily opened by pulling the tear strip portion 18 in the longitudinal direction and tearing the bag body together.

  In the fitting 10, the tear band 18 is integrally formed between the first base material portion 20 and the second base material portion 22 to form one base material 12. Compared with a fitting in which the base material on which the fitting part is provided and the base material on which the second fitting part is provided are separate, it is possible to suppress the complexity of the bag manufacturing apparatus and the deterioration of the yield.

  Further, the tear band portion 18 is integrally formed between the first base material portion 20 and the second base material portion 22 to form one base material 12, so that the tear band portion is attached before being attached to the bag body. 18 is difficult to separate. Specifically, for example, as shown in FIG. 2, in the state where the base 12 is folded and the first fitting portion 14 and the second fitting portion 16 are fitted, the base 12 is turned to the folded portion 12 d side. When a force for pulling is applied, the force is applied to both the first fitting portion 14 side and the second fitting portion 16 side of the folded portion 12d in the base material 12. Thus, in the fitting tool 10, compared with the fitting tool in which the base material on which the first fitting portion is provided and the base material on which the second fitting portion is provided are separated, the tear band of the base material 12 is used. Since it is difficult to apply a strong force locally to the portion 18, the tear band portion 18 is not easily torn before being attached to the bag body.

The fitting tool of the present invention is not limited to the fitting tool 10 described above.
For example, the fitting 10A illustrated in FIG. 3 may be used. The same parts in FIG. 3 as those in FIG. 10A of fitting tools are the same as the fitting tool 10 except having the base material 12A which the whole base material consists of a single layer film instead of the base material 12. FIG.
In the fitting 10A, the base material 12A may be a single-layer film made of a heat seal layer, the base material 12A is a single-layer film made of a layer other than the heat seal layer (such as a heat-resistant layer), and the base material 12A It may be possible to join the bag body by forming an adhesive layer with an adhesive or the like on the second surface 12e (outer surface) side.

Moreover, the fitting 10B illustrated in FIG. 4 may be sufficient. The same parts in FIG. 4 as those in FIG. The fitting tool 10B is a fitting tool except that the whole base material is made of a single layer film and the base material 12B is not formed with the first groove 24a and the second groove 24b instead of the base material 12. 10 is the same.
Also in the fitting 10B, the base material 12B may be a single-layer film made of a heat seal layer, the base material 12B is a single-layer film made of a layer other than the heat seal layer (a heat-resistant layer, etc.), 2 may be bonded to the bag body by forming an adhesive layer with an adhesive or the like on the surface 12e (outer surface) side.

In the fitting 10B, a material different from that of the first base material portion 20 and the second base material portion 22 is adopted as the material of the tear belt portion 18, and the tear band portion 18, the first base material portion 20 and the second base material are used. boundaries of tear strength sigma _A1 the wood part _22, the sigma _A2, it is necessary to lower than the tear strength sigma _C of the first substrate portion 20 of the tear strength sigma _B and the second substrate portion 22.
In the case where grooves are provided on both sides of the tear band portion 18 as in the fitting tool 10 and the fitting tool 10A, the tear band portion, the first base material portion, and the second base material portion are formed of the same material. Also good.

The bag body of the present invention may be the fitting 10C illustrated in FIG. The same parts in FIG. 5 as those in FIG. The fitting tool 10 </ b> C is the same as the fitting tool 10 except that the fitting tool 10 </ b> C includes a substrate 12 </ b> C instead of the substrate 12.
The base material 12C is made of a single layer film as a whole. In the base material 12C, the tear strip portion 18A and the tear strip portion 18B are respectively opposed to the first side end 12b side and the second side end 12c side of the folded portion 12d so as to face each other when folded at the folded portion 12d. Is provided.

As aspects of the tear band part 18A and the tear band part 18B, the same aspect as the tear band part 18 in the fitting 10 can be employed.
The fitting tool 10 </ b> C is attached so that the tear strip 18 </ b> A and the tear strip 18 </ b> B are joined to each of a pair of opposed flat portions of the bag body. By tearing the tear strip portion 18A and the tear strip portion 18B in this state, both the pair of flat portions in the bag body are torn to form an opening.

The fitting tool of the present invention may be a fitting tool in which the tear band portion 18 is disposed in the vicinity of the folded portion 12d in the fitting tool 10.
In the fitting tool of the present invention, one tear band portion may be provided near the second fitting portion in the base material. In this case, the tear band part near the second fitting part in the base material and at least a part of both sides of the tear band part are joined to the bag body.

  Although the fitting tool 10 joins the base material 12 to only one of the pair of flat portions of the bag body, the fitting tool of the present invention joins the base material to each of the pair of flat portions of the bag body. It may be a thing.

  The first fitting portion and the second fitting portion in the fitting of the present invention may be any one that can be detachably fitted to each other and can repeatedly open and close the opening, and the male fitting portion and the female fitting The combination of parts is not limited. For example, the first fitting portion and the second fitting portion each have a plurality of parallel male fitting portions, and two male fitting portions that face the heads of the male fitting portions of each other. They may be inserted between them and hooked together to be attached or detached.

[Bag with fitting]
Hereinafter, a bag body with a fitting tool including the fitting tool 10 will be described as an example of the bag body with a fitting tool of the present invention.
As shown in FIG. 6, a bag body 1 with a fitting tool of the present embodiment (hereinafter referred to as “bag body 1”) includes a bag body 40 in a sealed state for containing contents, and a bag body 40. The fitting 10 attached to the horizontal direction is provided in the inner surface of the upper part.

  The bag main body 40 is formed by superimposing the first flat surface portion 41 and the second flat surface portion 42 made of a film material and heat-sealing the peripheral edge portions 43 thereof, and is in a sealed state. .

  The shape of the bag body 40 is a rectangle in the present embodiment. The shape of the bag body 40 is not limited to a rectangle. The size of the bag main body 40 is not particularly limited, and may be appropriately selected depending on the contents accommodated in the bag main body 40.

As the 1st plane part 41 and the 2nd plane part 42 which form the bag main body 40, what is necessary is just the thing which can weld the fitting 10 by heat sealing, and the laminated | multilayer film which have a sealant layer and a base material layer at least from an inner surface side Is preferred.
Examples of the material for the base material layer include biaxially stretched nylon and biaxially stretched polypropylene.
Examples of the material for the sealant layer include linear low density polyethylene, unstretched polypropylene, ethylene-vinyl acetate copolymer, and ionomer.
The laminated film may be provided with a functional layer such as a barrier layer.
The 1st plane part 41 and the 2nd plane part 42 may be a single layer film which consists only of a sealant layer.

As shown in FIG. 7, the fitting 10 is configured such that the base material 12 is folded at the folded portion 12 d and the first fitting portion 14 and the second fitting portion 16 are fitted to each other. A portion of the seal layer 28 is welded to the inner surface of the first flat portion 41 of the bag body 40. That is, the tear band portion 18 and other portions of the base material 12 are welded to the inner surface of the first flat portion 41, respectively. In this state, the folded portion 12d of the base material 12 in the fitting tool 10 faces upward, and the first side end 12b and the second side end 12c of the base material 12 face downward. That is, the fitting tool 10 is attached to the upper portion of the bag body 40 so that the first fitting portion 14 and the second fitting portion 16 are located on the contents side of the tear strip portion 18.
In the second base material portion 22 of the base material 12, the second side end 12 c side of the folded portion 12 d and the region from the folded portion 12 d to the end portion 28 a of the heat seal layer 28 are joined to the bag body 40. Not.

In the portion where the one end portion in the longitudinal direction of the tear strip portion 18 in the first flat portion 41 of the bag body 40 is located (the left side edge portion in FIG. 6), along both side edges of the tear strip portion 18. Cuts 44a and 44b are formed so that the longitudinal ends of the tear strip 18 can be picked.
As shown in FIG. 8, the first flat surface portion together with the tear band portion 18 is obtained by picking one end portion in the longitudinal direction of the tear band portion 18 from the first flat surface portion 41 side and pulling it toward the other end portion side. 41 is torn and an opening 45 is formed. After the opening 45 is formed, the first fitting portion 14 and the second fitting portion 16 of the fitting 10 can be attached and detached repeatedly to open and close.

(Production method)
The manufacturing method of the bag body 1 is not specifically limited, For example, the bag body 1 in which the content was accommodated can be obtained with the method shown below.
As shown in FIG. 9, the fitting 10 in a state in which the base material 12 is folded at the folding portion 12 d and the first fitting portion 14 and the second fitting portion 16 are fitted is connected to the first flat portion 41 and the first fitting portion 10. It arrange | positions in the upper part between the film materials which form the 2 plane part 42 so that it may be parallel to the upper edges 41a and 41b. At this time, the folded portion 12d of the base member 12 faces the upper edges 41a and 41b, and is fitted so that the first fitting portion 14 and the second fitting portion 16 are closer to the contents side than the tear band portion 18. The tool 10 is arranged. The vertical position of the fitting 10 is adjusted by a guide member 51 inserted between two film materials.

Next, using the heat seal bars 52 and 53, the heat seal layer 28 in the base material 12 of the fitting 10 is welded to the film material forming the first flat portion 41 by heat sealing. As the heat seal bars 52 and 53 used when the fitting tool 10 is attached, for example, recesses 52a and 53a are formed at positions corresponding to the first fitting portion 14 and the second fitting portion 16, and heat sealing In this case, it is possible to employ one in which the first fitting portion 14 and the second fitting portion 16 in the fitting 10 are not crushed.
When heat-sealing the fitting 10, for the purpose of more firmly heat-sealing the fitting 10, a portion of the base 12 on the first side end 12 b side than the first fitting portion 14, The guide plate 54 is inserted between the second fitting end 16 and the portion on the second side end 12c side.

Next, the peripheral parts other than the upper edge part of the two film materials forming the first flat part 41 and the second flat part 42 are heat-sealed, and as shown in FIG. obtain.
Next, from the upper part of the bag body 1A in the opened state, after filling the contents through between the fitting 10 and the second flat part 42, the contents are accommodated by heat-sealing and sealing the upper edge part. A bag 1 is obtained.

(Function and effect)
In the bag body 1 described above, as shown in FIG. 8, by pulling the tear band portion 18 of the fitting 10 attached to the first flat portion 41 of the bag body 40 and tearing the first flat portion 41 together. The opening 45 can be formed and easily opened. Moreover, after opening, the 1st fitting part 14 and the 2nd fitting part 16 of the fitting 10 can be attached or detached, and can be opened and closed repeatedly.
In addition, since the tear band portion 18 of the fitting 10 is integrally formed between the first base material portion 20 and the second base material portion 22, it is possible to suppress complication of the bag manufacturing apparatus and Separation of the tear band 18 before attaching the combination device 10 to the bag body 40 can also be suppressed, and deterioration of yield can be suppressed.

In addition, the bag body with a fitting tool of this invention should just use the fitting tool of this invention, and is not restrict | limited to the above-mentioned bag body 1. FIG. For example, the bag with a fitting tool provided with the fitting tools 10A to 10C and the fitting tool of the present invention in other modes may be used.
The bag body in the bag body with the fitting tool is not particularly limited, and various forms of bag bodies known as the bag body of the bag body with the fitting tool can be adopted.

DESCRIPTION OF SYMBOLS 1 Bag body with fitting tool 10, 10A-10C Fitting tool 12, 12A-12C Base material 14 1st fitting part 16 2nd fitting part 18 Tear strip part 20 1st base material part 22 2nd base material part 24a 1st groove | channel 24b 2nd groove | channel 24c 3rd groove | channel 26 Heat-resistant layer 28 Heat seal layer 40 Bag main body 41 1st plane part 42 2nd plane part 43 Peripheral part 44a, 44b Cut 45 Opening part

Claims (6)

A belt-like base material, a first fitting portion and a second fitting portion that are provided so as to protrude from the first surface of the base material and extend in the longitudinal direction, and are detachably fitted to each other;
The first fitting portion and the second fitting portion are fitted in a state in which the base material is folded between the first fitting portion and the second fitting portion,
The base material has a tear band portion extending in a longitudinal direction between the first fitting portion and the second fitting portion and capable of being torn so as to divide the base material. .   The fitting tool according to claim 1, wherein the tear band portion is located closer to the first fitting portion or the second fitting portion in the base material. A tear strength sigma _A of the tear strip portion, the tear strength sigma _B of the tear strip portion of the first fitting portion than in said substrate, said second than said tear strip portion of the substrate The fitting tool according to claim 1 or 2, wherein the relationship with the tear strength σ _C of the portion on the fitting portion side is σ _A ≧ σ _B and σ _A ≧ σ _C.   A first groove and a second groove extending in a longitudinal direction are formed between the first fitting portion and the second fitting portion on the first surface of the base material, and the first groove on the base material is formed. The fitting tool according to any one of claims 1 to 3, wherein a portion between the first groove and the second groove is the tear band portion. A bag main body for storing contents, and the fitting according to any one of claims 1 to 4 attached to an inner surface of an upper portion of the bag main body,
The bag body includes a pair of flat portions facing each other,
The fitting is attached to at least one of the pair of flat portions so that the tear band portion is on the upper side of the first fitting portion and the second fitting portion,
The bag body with a fitting tool in which the said tearing band part and parts other than the said tearing band part in the said base material are joined to the said plane part.   The bag body with a fitting tool according to claim 5, wherein the base material is joined to only one of the pair of flat portions.

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