JP2005111724A - Attaching method of linear member to gusset bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attaching method of a linear member to a gusset bag capable of performing work for attaching a plastically deformable linear member to the gusset bag smoothly and stably even after the gusset bag is molded. <P>SOLUTION: In this attaching method for attaching the plastically deformable linear members 12 and 13 to the gusset bag equipped with a pair of front and rear parts 16 and a pair of left and right foldable side surface folding parts 14 in a C-shape, a coated wire 21, wherein the linear members 12 and 13 are coated with a coating resin 20, and a strip-like seal material 25, which has a sealant layer 23 on one surface holding a base material 22 and an adhesive layer 24 on the other surface thereof, are fed out and the coating resin 20 and the sealant layer 23 are integrally heat-sealed to form a tack seal 11 with a wire. This tack seal 11 with the wire is cut into a predetermined length and an adhesive layer 24 is pressed to the side surface folded parts 14 of the gusset bag to bond the tack seal 11 with the wire to attach the linear members 12 and 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for attaching a linear member to a gusset bag and a gusset bag, and in particular, plastically deforms a gusset bag including a pair of front and rear front portions and a pair of left and right side folding portions that can be folded inside these front portions. The present invention relates to a method for attaching a linear member to a gusset bag and a gusset bag for attaching a possible linear member.

  A gusset bag is a bag comprising a pair of front and rear front portions formed from one or a plurality of sheet materials, and a pair of left and right side folding portions that can be folded into a V shape inside these front portions. Then, from the state where the side folding portion is folded and flatly folded, the folding portion in the vicinity of the opening is opened to form a rectangular upper end opening so that various items can be accommodated inside the upper end opening. It has become.

  Moreover, the use of the gusset bag has expanded by devising the sheet material which comprises this, the form of the said gusset bag, etc. For example, as a bag container containing powdery or granular detergent etc., it is commercialized in a state in which the contents are enclosed by sealing the upper end opening, and the user cuts off the sealing portion at the upper end to form the upper end opening In the gusset bag that can be used by repeatedly taking out the detergent, etc., it is necessary to make it possible to easily close the upper end opening that is opened after the sealing portion is cut off, and the detergent from the upper opening that is opened again. It is necessary to make it easy to take out the etc.

On the other hand, the plastic metal wire and the thermoplastic resin wire were integrally attached to the bag, so that the opening and closing of the bag made of the synthetic resin film can be easily repeated without using another member such as a rubber band. Synthetic resin film bags and most sealing bags are disclosed (see, for example, Patent Document 1 and Patent Document 2). These bags can be re-closed and re-sealed after opening the bag by bending the plastic wire together with the synthetic resin film. The plastic wire is sealed so as to be sandwiched between two thin synthetic resin tapes having adhesiveness and heat-sealability, and attached to the bag together with these synthetic resin tapes by heat-sealing or the like. It is formed as a thermoplastic resin tape composed of a resin and an outer layer resin, and is attached to the bag by heat fusion or the like.
JP-A-2-242750 JP 2000-326996 A

  However, the plastic metal wire and thermoplastic resin wire, which are plastically deformable linear members, are attached to the bag in a sealed state by being sandwiched between synthetic resin tapes or covered with an outer layer resin. However, these plastic wires are pre-attached to a film material for forming a bag by fusion or the like, and then the bag is formed by fusion or the like using the film material to which the plastic wire is attached. Or a linear member that can be plastically deformed, for example, with respect to a gusset bag that is commercialized in a state in which a container is enclosed, For example, there is a case where there is no sealant layer on the outer peripheral surface of the bag to which the linear member is to be fused. Etc., so that various problems occur.

  The present invention relates to a method for attaching a linear member to a gusset bag, which makes it possible to perform the operation of attaching a plastically deformable linear member to a gusset bag in a smooth and stable state even after molding of the gusset bag, and The purpose is to provide gusset bags.

  The present invention is a linear member mounting method for mounting a plastically deformable linear member on a gusset bag including a pair of front and rear front portions and a pair of left and right side folding portions that can be folded inside the front portions. A wire covering the linear member with a coating resin, and a strip-shaped sealing material having a sealant layer on one surface sandwiching the base material and an adhesive layer on the other surface, the coating resin and the The sealant layer is heat-sealed and integrated to form a tack seal with wire, the tack seal with wire is cut into a predetermined length, and the adhesive layer is attached to the adherend surface of the gusset bag. By sticking the tack seal with the wire by pressing and attaching the plastically deformable linear member in a predetermined shape to the predetermined position of the gusset bag, the linear member is attached to the gusset bag. By providing only way in which to achieve the above objects.

  The present invention also provides a coated wire in which a plastically deformable linear member is covered with a coating resin, and a strip-shaped sealing material having a sealant layer on one surface and an adhesive layer on the other surface sandwiching the substrate. The tacky seal with wire formed by heat-sealing the coating resin and the sealant layer and integrating them is pressed against the adherend surface of the bag to be adhered, By providing a gusset bag to which the linear member capable of plastic deformation is attached and in which a reinforcing sheet is overlaid so as to cover each end of the attached linear member. Is achieved.

  Here, the plastically deformable linear member is made of, for example, a metal wire, a plate, a narrow plate, a mesh, a ribbon, or a shape memory alloy, a shape memory resin, etc. It is a linear member that can be bent and deformed, and has plastic deformability to such an extent that the shape after bending can be easily maintained, and when the gusset bag is closed by folding the take-out port, for example. The sheet material has a shape-retaining rigidity at the time of plastic deformation that resists the folding restoring force of the sheet material and can stably hold the folded state of the take-out opening. In addition to the linear member such as a wire, the linear member includes, for example, an elongated strip-shaped member having a certain width.

  In addition, as the covering resin that covers the plastically deformable linear member, for example, low-density polyethylene, high-density polyethylene, polypropylene resin, or the like that can be heat-sealed with the sealant layer of the belt-shaped sealing material can be used.

  Furthermore, the predetermined length of the tack seal with wire, the predetermined position of the gusset bag to which the linear member is attached and the predetermined shape of the linear member are the form of the gusset bag, the material used, the purpose of use, and the accommodation Depending on the type of the stored item, the gusset bag is appropriately selected and designed so that the gusset bag can be easily closed and the stored item can be taken out easily.

  According to the method for attaching a linear member to a gusset bag and the gusset bag of the present invention, the operation of attaching a linear member capable of plastic deformation to the gusset bag is performed in a smooth and stable state even after the molding of the gusset bag. be able to.

  As an example, the method for attaching a linear member to a gusset bag according to an embodiment of the present invention is a gusset that constitutes a detergent product in which, for example, a powdery detergent is enclosed and accommodated as a container, as shown in FIGS. This is employed when the plastically deformable linear members 12 and 13 are attached to the bag 10 after the gusset bag 10 is formed.

  Here, according to the present embodiment, the gusset bag 10 is obtained by subjecting one or a plurality of sheet materials cut into a predetermined shape designed in advance to various known bending processes and joining processes. The body portion of the bag container containing the detergent is surrounded by a rectangular bottom 15 and a pair of front and rear front portions 16 and a pair of left and right side folding portions 14 erected from each side of the bottom portion 15. What is formed as a gusset bag container comprising a trunk portion 17 and an upper portion of the trunk portion 17 that are continuously arranged as a unit and a take-out port portion 18 that is folded back when the gusset bag 10 is closed. It is. Further, the gusset bag 10 is taken out from the upper end outlet 19 after a predetermined amount of powdered detergent, which is a container, is inserted in advance, and then the upper and lower side side folding portions 14 are folded inward in a V shape. The mouth 19 is sealed and sealed, for example, so that the introduced detergent is sealed inside, and the outlet 18 which is an unaccommodated portion of the detergent is folded twice, for example, as a detergent product. It has become.

  Further, according to the present embodiment, as the sheet material constituting the gusset bag 10, for example, a multilayer sheet including an aluminum foil layer is used. Preferably, for example, the first layer as the outermost layer is polyester, the second layer. Can be a multilayer sheet having a five-layer structure in which polyethylene is the third layer, aluminum foil is the third layer, polyethylene is the fourth layer, and the fifth layer, which is the innermost layer, is a sealant layer. By using a multilayer sheet including an aluminum foil layer as the sheet material, the folding operation at the time of resealing (resealing) can be facilitated, and further, wrinkles and the like are hardly generated on the bag, and the gusset bag 10 It becomes possible to maintain the appearance of the film.

  And the linear member attachment method of this embodiment is a gusset bag 10 provided with a pair of front and rear front parts 16 as described above and a pair of left and right side folding parts 14 that can be folded inside these front parts 16. A method for attaching plastically deformable linear members 12 and 13, wherein the linear members 12 and 13 are covered with a coating resin 20 as shown in FIGS. 3 and 4A and 4B. The sealant layer 23 is sent out on one surface across the wire 21 and the base material 22 and the strip-shaped sealing material 25 having the adhesive layer 24 on the other surface, and the coating resin 20 of the coated wire 21 and the sealant of the strip-shaped sealing material 25 are sent out. The layer 23 is heat-sealed and integrated to form a wire tack tackle 11, the wire tack tackle 11 is cut into a predetermined length, and the gusset bag 10 is attached. The adhesive layer 24 is pressed against the surface 26 to attach the wire tack tack seal 11 and the plastically deformable linear members 12 and 13 are attached to a predetermined position of the gusset bag 10 in a predetermined shape. ing.

  Moreover, according to this embodiment, the predetermined position to which the linear members 12 and 13 are attached is the side folded portion 14 of the gusset bag 10, and the predetermined shape to which the linear members 12 and 13 are attached is a pair of It has a U-shape consisting of three linear members 12, 13 with a horizontal linear member 13 interposed at one end portion of the vertical linear member 12.

  Furthermore, according to the present embodiment, the reinforcing seal 27 is overlaid so as to cover the ends of the linear members 12 and 13 attached to the gusset bag 10.

  According to this embodiment, the tack seal 11 with a wire formed by integrating the coated wire 21 and the strip-shaped sealing material 25 includes, for example, a wire feed roller 28 for feeding the coated wire 21 as shown in FIG. A sealing material delivery roller 29 for feeding the belt-shaped sealing material 25, a heat sealer 30 for heat-sealing (heat-sealing) the crimped wire 21 and the belt-shaped sealing material 25, and an obtained tack seal with wire 11 can be formed by using an apparatus including a cutter 31 for cutting 11 into a predetermined length and a guide roller 32 and a cutting table 33 provided as appropriate. That is, the coating wire 21 and the strip-shaped sealing material 25 that are continuously fed out in synchronization with each of the feeding rollers 28 and 29 are guided so as to overlap with each other via the guide roller 32, and these are guided to the heat sealer 30. The wire-attached tack seal 11 is fed to the upper surface of the cutting table 33 through the guide roller 32, cut into a predetermined length by the cutter 31, and the longitudinal linear member 12 is attached. For this purpose, the wire tack tack seal 11a and the wire tack tack seal 11b used for attaching the transverse linear member 13 are cut.

  Here, as shown in FIG. 4A, the covered wire 21 is made of a metal having a thickness of, for example, 0.1 to 5.0 mm, preferably 0.3 to 1.0 mm as the linear members 12 and 13. The wire is covered with a thickness of, for example, 0.05 to 3.0 mm using, for example, low-density polyethylene, high-density polyethylene, or polypropylene resin as the coating resin 20. The covering resin 20 preferably covers the linear members 12 and 13 in a wide and flat shape. This makes it possible to improve the handling properties of the linear members 12 and 13 and increase the fusion area. Thus, it is possible to more effectively perform fusion and integration with the belt-shaped sealing material 25.

  Further, as shown in FIG. 4B, the belt-shaped sealing material 25 is made of, for example, a base material 34 made of, for example, polyethylene terephthalate (PET), and, for example, a linear low density polyethylene ( LLDPE) and a multi-layer structure including an adhesive layer 24 made of, for example, a strong adhesive material (PA-T1) provided on the other surface across the base material 34, for example, 3.0 It is formed in a band shape having a width of ˜30.0 mm. The belt-like sealing material 25 is fed from the sealing material feed roller 29 in a state where the adhesive layer 24 is covered with the release paper 34, and is heat-sealed and cut to provide a tack seal 11a with wire. When these are placed on the adherend surface 26 of the gusset bag 10 after the 11b is formed, the release paper 34 is peeled off from the adhesive layer 24 to perform the bonding operation.

  According to the present embodiment, the formed wire tack tack seals 11a and 11b use the adhesive pedestal 35 as shown in FIG. The three linear members 12 and 13 that are efficiently attached to each other and form a U-shape are firmly attached to the side folded portion 14.

  The adhesive pedestal 35 is composed of a pair of divided pedestals 37 having, for example, a hexahedron shape arranged with a gap 36 therebetween. A pressing surface 38 is formed. The adhesive pedestal 35 sandwiches the pair of front face portions 16 and the other folded side face folded portion 14 of the gusset bag 10 in the gap 36, and also attaches the tack seals 11a and 11b with wires to each other. The one side fold 14 is disposed above the adhesive pedestal 35 by flatly arranging on the pressing surface 38 with the side fold 14 open, and forming a T-shaped cross-section with the front 16. It is possible to easily face the pressing jig 39.

  Then, the release paper 34 is removed from the tack seals 11a and 11b with wires, and these tack seals 11a and 11b are accurately positioned and arranged in a predetermined U-shape on the side folding portion 14 on the upper surface of the adhesive pedestal 35. By pressing the flat pressing surface of the pressing jig 39 against the adhesive pedestal 35, the tack seals 11a, 11b with wires are firmly attached to the side folding portions 14. After that, by releasing the pressing by the pressing jig 39 and pulling the pressing surface apart, two vertical lines are placed at a predetermined position in the upper part of the side folding portion 14 via the tack seals 11a and 11b with wires. The member 12 and one horizontal linear member 13 are easily attached in a U-shape.

  According to the present embodiment, the reinforcing sheet 27 is further overlaid so as to cover each end of the longitudinal linear member 12 and the lateral linear member 13 attached to the gusset bag 10. .

  According to the present embodiment, the reinforcing seal 27 is formed of, for example, a tack seal having a layer configuration similar to that of the belt-shaped seal material 25, and is cut and used as a substantially circular seal piece. That is, the reinforcing seal 27 is attached to the side folded portion 14 so as to cover the end portions of the linear members 12 and 13 with the semicircular portion of the release paper 34 through the adhesive layer 24 and the remaining portion. The semicircular portion is folded and attached to the front portion 16 on the back side, so that the end portions of the linear members 12 and 13 are firmly attached along the standing side 40 of the gusset bag. According to the present embodiment, at both ends of the horizontal linear member 13, each end is covered with the single reinforcing seal 27 together with one end of each vertical linear member 12 adjacent thereto. ing. When the end portions of the linear members 12 and 13 are covered with the reinforcing seal 27, the end surfaces of the linear members 12 and 13 exposed from the end surfaces of the tack seals 11a and 11b with wires are exposed to the outside air and other substances. It is possible to protect effectively without touching, and in particular, when the linear members 12 and 13 are made of metal, it is possible to protect the linear members 12 and 13 from being damaged due to the occurrence of rust.

  By performing the above-described process of attaching the linear members 12 and 13 to the other side folding part 14 in the same manner, the upper side of the pair of left and right side folding parts 14 as shown in FIG. The longitudinal linear member 12 and the lateral linear member 13 are attached in a U-shape to the portions via the wire-attached tack seals 11a and 11b, and each end of the attached linear members 12 and 13 is attached. The gusset bag 10 of the present embodiment shown in FIG. 2 on which the reinforcing seal 27 is overlaid so as to cover the part is easily formed.

  Here, according to the gusset bag 10 of the present embodiment formed in this way, longitudinal lines that can be plastically deformed along the four standing edges 40 where the front portion 16 and the side folded portion 14 are connected. As shown in FIG. 5, after the upper end outlet 19 is opened, the cylindrical member 12 is attached to the outlet 18 which is a part folded back downward and the body 17 which is a main body part containing the detergent. When the take-out port 18 is folded back to close the gusset bag 10, the return-restoring force of the take-out port 18 by the sheet material can be effectively resisted and the folded-back state of the take-out port 18 can be stably maintained. Become. Therefore, the sheet material of the take-out port portion 18 is used together with the longitudinal linear member 12 while the upper end take-out port 19 is closed by overlapping the upper ends of the pair of front face portions 16 at the upper end take-out port 19 while folding the side folded portion 14 inward. By simply turning back along the folding portion 41, the upper end outlet 19 of the gusset bag 10 is easily and surely closed, and the detergent is stored effectively, while the detergent is repeatedly taken out. Is possible.

  Moreover, according to the gusset bag 10 of this embodiment, since the horizontal linear member 13 is provided between the upper end portions of the pair of vertical linear members 12 so as to cross each side folding portion 14, the upper end is taken out. When opening the opening 19, the lateral linear member 13 is restored and supported in a straight line, thereby extending the side folding portion 14 that has been folded inwardly, and extending the upper end of the rectangular shape. It becomes possible to hold | maintain 19 easily, and it becomes possible to take out the accommodated detergent still more easily and efficiently.

  And according to the linear member attachment method and gusset bag 10 of the present embodiment having the above-described configuration, the attachment work of the linear members 12 and 13 that can be plastically deformed to the gusset bag 10 is performed on the gusset bag 10. Even after molding, it can be carried out in a smooth and stable state. That is, according to the present embodiment, the covered wire 21 in which the linear members 12 and 13 are covered with the covering resin 20 and the belt-like sealing material 25 having the sealant layer 23 and the adhesive layer 24 are fused and integrated to provide a wire tack tack. The side folds 14 which are predetermined positions of the gusset bag 10 are formed by forming the seals 11a and 11b and attaching the tack seals 11a and 11b with wires to the gusset bag 10 through the adhesive layer 24 thereof. Since the linear members 12 and 13 are attached in a U-shape, another material such as an adhesive tape is used even when there is no fusible sealant layer on the outer peripheral surface of the molded gusset bag 10, for example. The linear members 12 and 13 that are firmly integrated with the belt-shaped sealing material 25 in advance are smoothly and easily attached to the gusset bag 10 by a stable flow operation. It is possible to Yuku.

  Note that the present invention is not limited to the above embodiment, and various modifications can be made. For example, the predetermined shape of the plastically deformable linear member attached to the gusset bag is not necessarily a U-shape, but is a combination of a plurality of other straight lines such as a V-shape or a simple one. It may be a linear shape of a book. In addition, the predetermined position of the gusset bag to which the linear member is attached may be the front portion in addition to the side folded portion. Furthermore, the sheet material constituting the gusset bag to which the linear member is attached is not necessarily a multilayer sheet having the above-described configuration including the aluminum foil layer, and is a sheet material not including the aluminum foil layer or a single-layer sheet material. May be. For example, a sheet material such as polyolefin resin, vinyl chloride, polyester resin, polyamide resin, or the like can be used. Furthermore, the contents contained in the gusset bag do not necessarily need to be a powdery detergent, and contain various other things such as liquid contents such as shampoo and rinse, and solid contents such as confectionery. It can also be used as a bag container.

  Also, as a predetermined position of the gusset bag, for example, the work of attaching a tack seal with a wire to the side folding portion needs to be performed while holding the gusset bag in a T-shaped cross section using an adhesive pedestal comprising a pair of split pedestals. For example, as shown in FIG. 6, the side fold portion 14 is opened flat by folding a half portion from the center line 42 of the side fold portion 14 of the gusset bag 10 outward and overlapping the front portion 16. In this state, the tack seals 11a, 11b with wires and the reinforcing seal 27 can be attached.

It is a perspective view which shows the detergent product using the gusset bag with which the linear member was attached by the linear member attachment method which concerns on one Embodiment of this invention. It is a perspective view which shows the gusset bag to which the linear member was attached by the linear member attachment method which concerns on one Embodiment of this invention. It is explanatory drawing which shows an example of the apparatus used for the linear part attachment method which concerns on one Embodiment of this invention. (A) is a perspective view explaining the structure of a covered wire, (b) is sectional drawing explaining the structure of a strip | belt-shaped sealing material. It is a perspective view which shows the gusset bag of the state which turned the taking-out opening part. It is explanatory drawing of the other method of sticking a tack seal with a wire to the side fold part of a gusset bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Gusset bag 11, 11a, 11b Tack seal 12 with a wire Longitudinal linear member 13 Lateral linear member 14 Side fold part 15 Bottom part 16 Front part 17 Trunk part 18 Outlet part 19 Upper outlet part 20 Covering resin 21 Coating Wire 22 Base material 23 Sealant layer 24 Adhesive layer 25 Band-shaped sealing material 26 Adhered surface 27 Reinforcing seal 30 Heat sealer 31 Cutter 34 Release paper 35 Adhesive base 38 Pressing surface 39 Pressing jig

Claims (5)

A linear member mounting method for mounting a plastically deformable linear member on a gusset bag comprising a pair of front and rear front portions and a pair of left and right side folding portions that can be folded inside the front portions,
A coated wire in which the linear member is covered with a coating resin, and a belt-shaped sealing material having a sealant layer on one surface and a bonding layer on the other surface sandwiching the base material, and the coating resin and the sealant layer Heat seal and integrate these to form a tack seal with wire,
The tack seal with wire is cut into a predetermined length, and the adhesive layer is pressed against the adherend surface of the gusset bag to adhere the tack seal with wire, and the plastic is placed at a predetermined position of the gusset bag. A method for attaching a linear member to a gusset bag in which a deformable linear member is attached in a predetermined shape. The predetermined position to which the linear member is attached is the side folded portion, and the predetermined shape to which the linear member is attached is that a lateral linear member is interposed at one end portion of a pair of vertical linear members. 2. The method for attaching a linear member to a gusset bag according to claim 1, wherein the linear member has a U-shape consisting of three linear members. The method for attaching a linear member to a gusset bag according to claim 1 or 2, wherein a reinforcing seal is laminated and pasted so as to cover each end portion of the linear member attached to the gusset bag. A coated wire in which a plastically deformable linear member is covered with a coating resin, and a band-shaped sealing material having a sealant layer on one surface and an adhesive layer on the other surface sandwiching the base material, A wire-attached tack seal formed by heat-sealing a sealant layer and integrating them is pressed against the adherend surface of the bag to adhere the plastically deformable wire. A gusset bag to which a reinforcing seal is overlaid so as to cover each end of the attached linear member. The wire tack tack seal is adhered to the side fold portion, and the linear member is composed of three linear members having a horizontal linear member interposed between one end portions of a pair of vertical linear members. The gusset bag according to claim 4, which is attached in a U-shape.

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