JP5564952B2 - Pouch with opening aid - Google Patents

Description

The present invention relates to a packaging bag for sealing and packaging the contents, and relates to a packaging bag that is easy to grasp each of the front wall and the back wall that are opened when the contents are taken out by opening one end of the packaging bag, It is possible to re-seal the opening by attaching a plastic occlusion device that retains hermeticity in re-opening and closing after opening to the opposite inner surface of the packaging bag, and re-adhering the inner surfaces of the packaging bag by occlusion of the male and female occlusion devices. It relates to a packaging bag.

Conventionally, a packaging bag for sealing and packaging the contents is sealed by heat bonding after filling the contents from the opening portion of the packaging bag, and when taking out the contents, the bag is placed along one side of the packaging bag. The contents are taken out from the opening and opened so as to cross, but depending on the characteristics of the film material that forms the bag body, the inner surfaces of the film constituting the body part are in close contact with each other and it is difficult to open the opening. Later, the film on the front and back of the body curled inward, and the film edge was difficult to pick up with the fingertips, making it difficult to open.

In addition, in order to give recloseability after opening the packaging bag, the packaging bag with the plastic occlusion device attached to the inner surface of the opening part of the front and back films constituting the body part, the contents with the plastic occlusion device engaged. Is filled and packaged. For this reason, when the consumer opens the packaging bag, the plastic occlusion tool is in a state of being firmly occluded and difficult to open. It was difficult to further open the bag.

Various proposals have been made to eliminate the above-described drawbacks, to improve the opening of the opening location, and to facilitate the separation operation of the bite after opening (for example, Patent Document 1). The technique disclosed in the “synthetic resin bag body” described in Patent Document 1 is “a bag in which the chuck is formed in a synthetic resin bag body in which a male and female nail type chuck is provided on the inner surface of the opening. A synthetic resin bag body characterized in that a plurality of rib strips parallel to the chuck are provided on both sides of the inner surface of the body film or on the upper and lower portions of the chuck position on one side to provide a continuous uneven surface. Thus, it is possible to prevent the bag film surface of the upper and lower portions of the chuck position from being in close contact with each other, improve the opening property, and prevent deformation of the chuck.

However, the synthetic resin bag described in the above-mentioned Patent Document 1 forms a plurality of gaps by the continuous uneven surface of a plurality of ribs protruding from the inner surface of the film of the opening, thereby forming the inner surfaces of the front and back films. Is difficult to adhere to, so there are problems in hygiene such as the contents and dust adhering to the gaps on the inner side of the opening of the bag, and the ribs provided on the inner side of the film open the bag There was a problem that the surface side of the part became a flat surface, and on the contrary, it was difficult to open with a fingertip and it was difficult to open. In addition, it is difficult to grasp the opening of the bag body, so if you drop the bag at the time of opening or forcibly perform the separation operation of the male and female nail type chuck that is in a strong occlusal state, the contents are likely to scatter due to reaction. there were.

Japanese Utility Model Publication No. 3-43447

SUMMARY OF THE INVENTION An object of the present invention is to provide a pouch having an opening assist knob that makes it easy to open one end of a packaging bag opened for taking out contents. Furthermore, in a packaging bag in which a plastic occlusion tool is attached to the opposite inner surface of the packaging bag in order to maintain the sealing performance and recloseability after opening, the opening assist that facilitates separation of the plastic occlusion tool when the packaging bag is opened It is to provide a pouch having a pick.

In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that the inner layers of a rectangular film made of a laminate having at least a base material layer and an inner layer made of a heat-adhesive resin layer are overlapped with each other to heat the peripheral portion. It is a bag body having side end thermal bonding portions on both side end portions and having a front wall and a back wall, and when the direction in which the side end thermal bonding portion extends is set as the vertical direction, The surface wall is integrally formed with a fin-like surface wall protruding piece across the both side end portions, and the surface wall protruding piece is folded outward from the surface wall. The protrusion for the surface wall is formed by thermally bonding the inner layers of the first region and the second region, and the second region is located between the first region and the surface wall. A piece is folded downward with respect to the surface wall, and only at the position of the side edge thermal bonding portion A fin-like protruding piece for the back wall is integrally formed across the both end portions on the back wall, and the protruding piece for the back wall is external to the back wall. The inner region of the third region and the fourth region folded in the direction is formed by thermal bonding, and the fourth region is positioned between the third region and the back wall. A pouch having an opening assist knob, wherein a protruding piece for a back wall is folded downward with respect to the back wall and is fixed only at the position of the side edge thermal bonding portion . By comprising in this way, a fin-like protrusion piece can be easily provided in a bag making process. Also, when opening the upper end of the bag and taking out the contents, for example, by curling the fin-like protruding pieces provided on the front and back walls and pulling them outward, An opening that is likely to be closed due to generation or the like can be easily opened.

The invention according to claim 2 is characterized in that a movable cutting line perpendicular to the width direction of the fin-like projecting piece is engraved on the fin-like projecting piece. It has a pouch. With this configuration, when the fin-shaped protruding piece is picked to open the bag, the picking portion can be easily bent by the movable cutting line, and the opening property can be improved .

According to a third aspect of the present invention, the movable cutting line is composed of substantially parallel two cut lines that are engraved at a predetermined interval at a substantially center between the both side end portions of the fin-shaped projecting piece, The pouch having an opening assist knob according to claim 1 or 2 , wherein the fin-like protruding piece between two movable cutting lines is a knob . By constructing in this way, when the fin-like protruding piece is picked and the bag is opened, the knob is more easily bent, and the fin-like protruding piece between the two cutting lines is used as the knob. Therefore, the opening operability can be further improved.

The invention according to claim 4 is the pouch having the opening assist knob according to any one of claims 1 to 3 , wherein the knob portion protrudes from both side edges of the knob portion. By configuring in this way, the protruding knob portion becomes easier to grip, and the opening operability can be improved.

The invention according to claim 5 is characterized in that a plastic occlusion device having a male and female nail shape is attached to the inner surface of each of the front surface wall and the rear surface wall so as to cross between both end portions. A pouch having an opening assisting knob according to any one of claims 4 to 4, wherein the pouch can be opened and re-closed after use by opening the bag. Even in the sealed state at the time of reclosing, the opening and reopening of the opening can be performed by the pulling operation of the fin-like protruding portion, so that it becomes possible not only to easily separate the plastic occlusion device. Since the contents are less likely to be scattered or dissipated, the contents can be prevented from being lost or the surroundings can be prevented from being damaged .

In the invention of claim 6, the protruding piece for the front wall and the protruding piece for the back wall are formed at the same position in the vertical direction, which is the direction in which the side end thermal bonding portion extends, and the side end heat 6. The opening according to any one of claims 1 to 5, wherein an opening start portion is provided at a position above the protruding piece for the front wall and the protruding piece for the back wall in the bonding portion. A pouch with an auxiliary pick .

According to the pouch having the opening assist knob according to the present invention, the opening assist knob comprising the fin-like protruding pieces integrally provided outward from the front wall and the back wall of the bag body in the outward direction of the front and back surfaces, respectively. By pulling, the opening can be easily formed at the upper end portion of the bag after opening, and the opening can be directly formed without being affected by the opening that tends to be in a close contact state or an inwardly curled state. .

The front view which shows embodiment of the pouch which has the opening assistance knob | pick which concerns on this invention. FIG. 2 is an enlarged end view taken along line XX in FIG. 1 of the embodiment. Similarly the YY line expanded sectional view in Drawing 1 of an embodiment. (A) (b) (c) The perspective view for description which shows the use condition of embodiment similarly. The top view for description which shows other embodiment which concerns on this invention.

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a plan view showing an embodiment of a pouch having an opening assist knob according to the present invention. FIG. 2 is an enlarged end view taken along line XX in FIG. 1 of the embodiment. FIG. 3 is an enlarged end view taken along line YY in FIG. 1 of the embodiment. FIG. 4 is an explanatory perspective view showing the usage state of the embodiment. FIG. 5 is an explanatory plan view showing another embodiment according to the present invention.

In the embodiment of the pouch having the opening assist knob according to the present invention, as shown in FIG. 1, the bag body P having a rectangular planar shape has at least a base material layer and an inner layer composed of a heat-adhesive resin layer. The inner layers of the rectangular film made of a laminated body are overlapped and thermally bonded to each other, and have side end thermal bonding portions 11 and 11 and a lower end thermal bonding portion 12 at both end portions and a lower end portion, and the upper end portion is heated at the upper end. A bonding portion (in the figure, the lower end of the upper thermal bonding portion is indicated by a dotted line with reference numeral 13), and notches 14 are engraved on both side ends as opening opening portions in the vicinity of the lower portion of the lower end 13 of the upper thermal bonding portion. A four-side sealed packaging bag provided with a front wall 1 and a back wall 1 ′ provided with a planned opening line 15 (indicated by a two-dot chain line in the figure), at a folding position R near the lower part of the planned opening line 15 Predetermined folding from the front wall 1 and the back wall 1 ' Front side folded portions 21, 21 'folded outward with a width r, and back side folded portions 22, 22' bent at the ends of the front side folded portions 21, 21 'and folded inward with the same width. Are formed into fin-like protruding pieces 20 and 20 '(20' does not appear in the figure) crossing between the side edge heat-bonding portions 11 and 11, respectively. 20 and 20 ′ are opening assist knobs on the front and back surfaces, respectively. Furthermore, the movable part which consists of two substantially parallel cut lines orthogonal to the width direction of the said fin-like protrusion piece in the approximate center part between the said side edge heat-bonding parts 11 and 11 of the said fin-like protrusion piece 20 and 20 '. Cutting lines 24, 24, 24 ′, 24 ′ (24 ′ does not appear in the figure), respectively, and knobs 23, between the movable cutting lines 24, 24 and between 24 ′, 24 ′, 23 '(23' does not appear in the figure) is formed. In addition, at the lower side from the position where the fin-like protruding pieces are formed, that is, at the lower end thermal bonding portion side, the inner surfaces of the front wall 1 and the rear wall 1 ′ are respectively crossed between the side thermal bonding portions 11 and 11. Plastic occlusion tools Q and Q ′ (shown by three parallel broken lines in the figure) made of male and female claws are attached. Further, the fin-like projecting pieces 20 and 20 ′ are arranged so that the front-side folded portion 21 ′ and the back-side folded portion 22 ′ are respectively semicircular inner notches 25, 25, 25 ′ and 25 ′ (in the drawing). Are indicated by a semicircular dotted line. 25 'does not appear in the figure), respectively, and is superposed and thermally bonded to the side end heat bonding portions 11, 11, respectively, from the front wall and the back wall of the bag body P, respectively. It can be made difficult to jump outwards, and does not get in the way at the time of transportation, accumulation, and sale. Further, the front and rear surfaces of the bag body P can be obtained by engraving the movable cutting lines 24, 24, 24 ', 24' formed by two cut lines with the break lines for the knob portions 23 and 23 'at the central portion. It is possible to make it difficult to jump out from the outside, and since it becomes a knob portion by breaking the break line at the time of use, it does not hinder use. In addition, although this embodiment demonstrated using the four-side seal packaging bag, it is not limited to this, It can apply to the various forms of a well-known pouch packaging.

FIG. 2 is an enlarged end view taken along line XX in FIG. 1, and the front wall 1 and the back wall 1 ′ forming the front and back surfaces of the bag body P according to the embodiment of the present invention are folded back from the upper folding position R. Front side folded portions 21, 21 'folded outward with a width r, and back side folded portions 22, 22' bent at the ends of the front side folded portions 21, 21 'and folded inward with the same width. Are thermally bonded to each other to form fin-shaped protruding pieces 20 and 20 ', respectively, and the surface wall 1 and the back wall on the lower end thermal bonding portion side below the position where the fin-shaped protruding pieces are formed. 1 ′ A state in which plastic occlusion tools Q and Q ′ each having a male and female nail shape are attached by heat welding to the inner side surfaces of the bag body P across the side end thermal bonding portions 11 and 11 of the bag body P, respectively. Is shown. Since the opening assisting knob portion of the present invention is a fin-like protruding piece formed by a folded portion integrally provided outward from the front wall and the back wall of the bag body, the fin-like protruding piece within the bag making process. The material can be formed and is economical in terms of materials and processes. Also, since there are no multiple ribs on the inner surface of the bag film of the opening as in the prior art, there are few sanitary problems such as adhesion of contents and dust to the gap, and a fin-like protrusion of the opening assist knob Since the pieces are provided on the outer sides from the front wall and the back wall of the bag, the user can easily recognize and grasp the pieces, so that the opening operation is easy. The plastic articulator includes: low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-α olefin copolymer, ethylene-propylene copolymer, ethylene -Although it can be manufactured using various synthetic resin materials such as vinyl acetate copolymer, the base portion of the plastic occlusion tool formed in a tape shape on the inner surface of the wall film of the bag P is thermally welded. Therefore, it is preferable to use resins of the same material. In addition, the shape of the plastic occlusal tool is such that a substantially T-shaped male occlusal portion having an outward claw portion in the cross section is formed inside the substantially U-shaped female occlusion portion having an inward claw portion in the cross section. However, the present invention is not limited to this. Furthermore, the attachment position of the plastic occlusion tool is lower than the position where the fin-like protruding piece is formed, that is, on the lower end thermal bonding part side, so that the male and female occlusion parts are separated by opening operation. Although it was set as the inner surface, it is not limited to this, It is preferable to provide in the position which the force pulling outward of each fin-shaped protrusion piece is easily transmitted to the male and female occlusion part of a plastic occlusion tool, respectively.

FIG. 3 is an enlarged end view taken along line YY in FIG. 1 and shows a laminated structure of the front wall and the back wall in the present invention. The front wall 1 and the back wall 1 ′ of the pouch having the opening assist knob according to the present invention are each formed of a laminated body in which a base material layer 51, an intermediate layer 52, and a thermal adhesive resin layer 53 are laminated. Below, each of the base material layer 51, the intermediate | middle layer 52, and the thermoadhesive resin layer 53 is demonstrated.
As the base material layer 51, since it becomes a basic material constituting the packaging bag, a synthetic resin film having excellent properties in mechanical, physical, chemical and the like can be used. For example, polyester-based, polyamide Resins such as those based on polypropylene and polypropylene can be used. Moreover, as a film using these resins, an unstretched film or a stretched film stretched in a uniaxial direction or biaxial direction can be used. The reason why the biaxially stretched film is used is that printing is usually performed on the base material layer 51 and printability is required. Further, the thickness of the film constituting the base material layer 51 may be a thickness that can be held to the minimum necessary for strength, rigidity, etc. as a basic material, and may be determined in consideration of the cost, It is approximately 12 to 25 μm. As the base material layer 51, other synthetic resin films can be used in addition to the stretched film, and the stretched film is not particularly limited. Further, a paper material such as rayon paper or glassine paper can be used.

The intermediate layer 52 is provided with a light shielding property when used as a packaging bag or a gas barrier property such as oxygen or water vapor. As a constituent material, for example, a metal foil such as aluminum, iron, copper, or tin, or Polyvinylidene chloride is applied to films of polyvinyl alcohol, ethylene-vinyl acetate copolymer saponified products, polyvinylidene chloride, or polyolefins such as polyester, polyamide, polyethylene, polypropylene, ethylene-propylene copolymer, and films of polyvinyl alcohol. A coated film or a film on which an inorganic substance such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide, or zirconium oxide is deposited can be used. Further, the intermediate layer 52 not only provides the above-described light shielding properties and gas barrier properties, but also has mechanical toughness, bending resistance, puncture resistance, impact resistance, cold resistance, heat resistance, chemical resistance, and the like. In order to impart a function, the above-described material imparting light-shielding properties or gas barrier properties can be used in combination with, for example, a film of polyolefin, such as polyester, polyamide, polyethylene, polypropylene, and ethylene-propylene copolymer. .

The heat-adhesive resin layer 53 constituting the inner layer may be a layer formed from a heat-adhesive resin that can be melted by heat and welded to each other, and can be appropriately selected and used depending on the physical properties required for the packaging bag. For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-α olefin copolymer, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer It can be formed of a polymer, an ionomer resin, an acid copolymer of ethylene and acrylic acid, an ester copolymer of ethylene and acrylic acid ester, or the like.

From the above, as the laminated structure of the wall film constituting the front and back surfaces in the present invention, for example, biaxially stretched polyethylene terephthalate / polypropylene, biaxially stretched polyethylene terephthalate / linear low density polyethylene, biaxially stretched polyethylene terephthalate / aluminum deposition Polypropylene, biaxially oriented polypropylene / polypropylene, biaxially oriented polypropylene / aluminum-deposited polypropylene, biaxially oriented polyethylene terephthalate / aluminum foil / linear low density polyethylene, biaxially oriented polyethylene terephthalate / aluminum foil / polypropylene, biaxially oriented nylon / aluminum Foil / Linear low density polyethylene, Biaxially stretched polyethylene terephthalate / Aluminum deposition Biaxially stretched polyethylene terephthalate / Linear low density polyethylene It is down or the like.

4 (a), 4 (b), and 4 (c) are explanatory perspective views showing the usage state of the embodiment of the pouch having the opening assist knob according to the present invention, and FIG. 4 (a) is shown in FIGS. Opening of the notch 14 provided in the vicinity of the upper end of the side end thermal bonding portion 11 on one side or both sides in a state where the bag body P is filled with the contents and the open end of the upper end is thermally bonded and sealed. It shows the state before cutting and opening across from the start. As for the opening position of the bag body P, it is desirable to show an opening line on the surface of the bag body by printing or the like, but an easy opening process can also be applied to the opening position. The easy opening process includes, for example, I-shaped, V-shaped and U-shaped incisions such as the notch 14 shown in the figure, U-shaped cutting, formation of an opening start portion by drilling fine cuts, and subsequent steps. For example, a method of processing the scheduled opening line 15 formed of a half-cut line that crosses the bag body P, or using a uniaxially stretched film in the stretching direction that coincides with the direction crossing the bag body P in the laminated film is used. In addition, although the process of the unscheduled opening line 15 which consists of a half cut line mentioned above can be processed also by laser beam irradiation, the process of the unscheduled opening line is not restricted to a continuous straight line, but may be provided by an intermittent break line. Moreover, the process which makes an opening easier is also possible by changing the position of a notch in several parallel notches and front and back.

FIG. 4B is a perspective view showing the opening state of the bag body by the operation of the opening assist knob of the present invention, and is a notch at the opening start end provided at the upper end of the side end thermal bonding portion 11 of the bag body P. 14 cut across the bag body P, and two parallel cut lines engraved at the center of fin-like projecting pieces 20 and 20 'provided at the upper ends of the front wall 1 and the back wall 1', respectively. Gripping portions 23 and 23 'defined by movable cutting lines 24, 24 and 24', 24 ', respectively, and pulling in the front and back direction (indicated by arrows in the figure), thereby lowering the opening end While opening and closing the male and female plastic articulating tools Q and Q ′ attached to the inner side surfaces, the upper edge formed by opening can be easily opened. Since the fin-like protruding pieces 20 and 20 ′ on the front and back surfaces are extended outward from the front wall 1 and the back wall 1 ′, respectively, the user can easily recognize them and can easily grasp the opening operation. As described above, in a bag body with a plastic occlusion tool, it is possible to easily separate the sealed state by a strong occlusion by gripping the knob of the fin-like protruding piece, and the bag body can be removed or opened It is difficult for the contents to scatter and dissipate due to the above, and it is possible to suppress the loss of the contents and the fouling in the vicinity.

FIG. 4 (c) is an explanatory perspective view showing a reclosed state after opening of the pouch having the opening assisting knob according to the present invention, and after use, the front wall 1 and the rear wall 1 ′ are placed at predetermined positions. The bag body is reclosed by bringing the plastic articulating tools Q and Q ′ into mesh with each other. In FIG. 4C, the knobs 23 and 23 ′ at the center of the fin-like protruding pieces 20 and 20 ′ are slightly lifted by the opening operation described above, and are easily picked at the time of the next opening operation. It becomes a state.

FIG. 5 is an explanatory plan view showing another embodiment according to the present invention, showing an example of another shape development of the opening assist knob portion, from the front wall 101 and the back wall 101 ′ forming the bag body P ′. The fin-like projecting pieces 120 and 120 'formed to extend are folded back at a folding position R' in the vicinity of the upper ends of the front wall 101 and the back wall 101 ', respectively, and are folded back by a predetermined length larger than the length of the previous embodiment. After the surface-side folded portions 121 and 121 ′ and the back-side folded portions 122 and 122 ′ having the dimension r ′ are thermally bonded on the inner surfaces, respectively, knob portions 123 and 123 ′ that protrude from the center portion are formed to form the knob portions. Each of both sides of 123 and 123 ′ is a heat-bonding portion having a width narrower than that of the knobs 123 and 123 ′, and perpendicular to the width direction of the fin-like protruding pieces from both side ends of the protruding knobs 123 and 123 ′. The movable cutting lines 124, 124, 124 ′ and 124 ′ each formed of two parallel cut lines are formed by drilling and forming a deformed concave cutting blade and a cutting blade for forming the movable cutting line in plan view. By trimming with a punching die or the like, the knobs 123 and 123 ′ are large and easy to pick, so that the pulling operation of the opening assist knob can be made easier. Similarly to the embodiment described above, the plastic occlusal attachment position is lower than the position where the knob portion is formed, that is, on the surface at the lower end thermal bonding portion side so that the male and female occlusion portions are separated by opening operation. The inner surface of each of the wall and the back wall, but is not limited to this, it is preferable to provide at a position where the pulling force of each of the knobs is easily transmitted to the male and female occlusion parts of the plastic occlusion tool, The force applied in the outward direction of the front and back surfaces by gripping the knob part directly works to separate the plastic occlusion tool, and can be opened with less force without causing deformation of the bag body. Scattering and dissipation of objects are unlikely to occur, and loss of contents and fouling in the vicinity can be suppressed.

According to said structure, since the knob | pick parts 123 and 123 'of a center part are large, it also becomes possible to engrave a plurality of cut line groups parallel to each part to be held of knob parts 123 and 123', for example. Since the engraved cut line group increases the frictional resistance of the knob portion, the pulling operation of the opening assist knob can be facilitated. In addition, the same effect can be obtained by providing a perforated portion in each of the knob portions 123 and 123 ′, thereby increasing the frictional resistance when gripping and using it as a finger hooking hole, thus enabling stable gripping. An easier opening operation can be obtained.

The production of the pouch having the opening assist knob according to the present invention, as in the embodiment, comprises a rectangular laminated film consisting of at least a base layer and an inner layer of a heat-adhesive resin layer on the front wall and the back wall, In a bag body in which both side end portions and bottom end portions of the front wall and the back wall are thermally bonded to form both side end heat bond portions and bottom end heat bond portions, folding positions are provided in the vicinity of the top ends of the front wall and the back wall, respectively. Forming a front-side folded portion that folds outward and a back-side folded portion that is bent at the end of the front-side folded portion and folded inward with the same width; and the front-side folded portion and the back-side folded portion Each of the inner layers can be heat-bonded to form a fin-like protruding piece. In addition, for example, the front wall and the back wall that are continuous at the lower end are folded at the lower end to superimpose the front and back surfaces, and the inner layers are thermally bonded to form the lower end heat-bonded portion. The front side folded part and the back side folded part that are folded at the position are thermally bonded to each other to form fin-like protruding pieces, and then the superposed surface wall and the back wall are thermally bonded at both ends. Thus, a four-side sealed bag having an open upper end can be formed by forming both end thermal bonding portions.

Each of the formed fin-like protruding pieces is folded toward the lower end at the folded position as shown in FIGS. 1 and 2, and both side ends are overlapped on both side ends of the front and back walls, At the time of thermal bonding of both end portions of the front wall and the back wall, the both side ends of the fin-like projecting pieces are surfaced using notches provided on both side ends of the inner surface of the folded portion where the fin-like projecting pieces overlap. It is also possible to heat bond to the heat bonding portions on both sides of the wall and the back wall. In addition, the front wall and the back wall are configured separately, and the manufacturing process is performed by thermally bonding the front side folded portion and the back side folded portion folded at the folded position of the front wall and the back wall between the inner layers. To form a fin-like projecting piece, and then heat-bond the superposed front and back walls at both ends to form both-end heat-bonded portions and heat-bond the lower ends to the lower-end heat bond It can also be set as the process of forming a part.

In addition, in the case of attaching the plastic occlusion tool composed of the male and female occlusion portions to the slightly lower side of the folding position on the inner surface of the front wall and the back wall, respectively, during the manufacturing process described in the preceding paragraph, After forming the fin-like projecting piece, in order to align the occlusal position of the male and female occlusal portions, it can be thermally welded to predetermined positions on the inner surfaces of the front and back walls in a tape state where the male and female occlusal portions are engaged. desirable. Therefore, between the front wall film roll and the rear wall film roll each of which the front wall and the rear wall are continuous in the width direction, a bite feeding roll in which the male and female biting tools are wound in an occluded state is disposed, Between the processes, a folding welding section that folds and heat-bonds the front wall and the back wall, a polymerization roll that superposes the biting tool and the front wall and the back wall, a sealing device, and a cutter are arranged. The front wall and the rear wall drawn out from the front wall film roll and the rear wall film roll are folded at predetermined positions in the folding welding section, and the inner layers are thermally welded to form fin-like protruding pieces, respectively. A tape-shaped occlusal tool is fed out in an occluded state from the occlusal tool feeding roll, and a front side wall surface film and a back side wall surface film fed from the top side wall surface film roll and the back side wall surface film roll above and below the polymerization roll. After the inner surface of each of the front and back walls and the respective base material portions of the tape-shaped occlusion device are heat-welded, the heat at the heat bonding portions on both ends is superposed. Welding is performed, cutting with a cutter is performed at each width direction pitch, and a lower end thermal bonding portion is formed by thermal welding of the lower end portion. In the manufacturing process of the above embodiment, thermal bonding is used for the welding of the laminated film or the like that is configured, but the present invention is not limited to this, and a welding method such as a high-frequency seal or an ultrasonic seal may be used. The welding method, the welding timing, the order, and the like can be appropriately set in consideration of productivity and the like corresponding to the laminated film and material used.

P, P 'bag body Q, Q' plastic occlusion tool R, R 'folding position r, r' folding width 1 surface wall 1 'back wall 11 side end thermal bonding part 12 lower end thermal bonding part 13 upper end thermal bonding scheduled part Lower end 14 Notch 15 Planned opening line 20, 20 'Fin-like protruding piece 21, 21' Front side folded part 22, 22 'Back side folded part 23, 23' Pick part 24, 24 'Movable cutting line 25, 25' Inner surface Notch 51 Base material layer 52 Intermediate layer 53 Thermal adhesive resin layer 101 Front wall 101 'Back wall 120, 120' Fin-like protruding pieces 121, 121 'Front side folded portion 122, 122' Back side folded portion 123, 123 ' Knob 124, 124 'Movable cutting line

Claims (6)

The inner layers of a rectangular film made of a laminate having at least a base material layer and an inner layer made of a heat-adhesive resin layer are overlapped with each other, and the peripheral edges are thermally bonded to each other, and side edge heat-bonded portions are formed on both side edges A bag body having a front wall and a back wall, wherein when the extending direction of the side end thermal bonding portion is a vertical direction, a fin-like protruding piece for the front wall is formed on the front wall. The protruding portions for the surface wall are formed integrally so as to cross between the both end portions, and the inner layers of the first region and the second region folded outward from the surface wall are heated. And the protruding piece for the surface wall is folded downward with respect to the surface wall so that the second region is located between the first region and the surface wall, and It is fixed only at the position of the side edge heat bonding part, and the back wall is for fin-like back wall Protruding pieces are integrally formed across the end portions on both sides, and the projecting pieces for the back wall are inner layers of the third region and the fourth region folded outward from the back wall. The protruding piece for the back wall is folded downward with respect to the back wall so that the fourth area is located between the third area and the back wall, and is formed by thermally bonding them together And a pouch having an opening assist knob, wherein the pouch is fixed only at the position of the side edge thermal bonding portion . 2. The pouch having an opening assist knob according to claim 1 , wherein a movable cutting line perpendicular to the width direction of the fin-like projecting piece is formed on the fin-like projecting piece . The movable cutting line is composed of substantially parallel two cut lines that are engraved at a predetermined interval in the approximate center between the both end portions of the fin-like projecting piece, and between the two movable cutting lines. The pouch having an opening assisting knob according to claim 1 or 2 , wherein the fin-like protruding piece is a knob . The pouch having an opening assist knob according to any one of claims 1 to 3 , wherein the knob portion protrudes from both end edges of the knob portion . 5. The plastic occlusion device comprising a male and female nail shape is attached to the inner side surface of each of the front surface wall and the rear surface wall so as to cross between both end portions . A pouch having the opening assist pick described in 1. The protruding piece for the front wall and the protruding piece for the back wall are formed at the same position in the vertical direction, which is the direction in which the side end thermal bonding portion extends, and for the surface wall in the side end thermal bonding portion The pouch having an opening assist knob according to any one of claims 1 to 5 , wherein an opening start portion is provided at a position above the protruding piece and the protruding piece for the back wall .

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