JP5463560B2 - Refillable pouch - Google Patents

Description

  The present invention relates to a refillable pouch, and particularly has a pouring path for taking out the fluid content, and when taking out the content, a planned opening line such as a half-cut line formed across the pouring path The present invention relates to a refillable pouch that cuts a sachet and opens a pouring path.

  The refill pouch is filled with various contents such as shampoos and toiletries such as liquid detergents, mainly liquid products, and these contents are transferred to dedicated containers. Therefore, in order to facilitate the transfer of the contents, the refilling pouch is formed with a pouring path for taking out the contents by the heat seal pattern on the periphery of the pouch. A planned opening line such as a half cut line that is cut when the contents are taken out to form the opening of the pouring path is provided across the pouring path and the heat seal portions on both sides thereof. A refilling pouch with such a pour-out path is usually opened by cutting the planned opening line by hand, so it is surprisingly difficult for the hand to slide cleanly at a predetermined position, and the unsealing property is poor. was there.

  In view of such a situation, a refillable pouch with improved openability has been proposed. For example, as shown in FIG. 6, a first cutout portion 33 is provided at the upper end portion of the half cut portion 32 that is cut to form the opening of the extraction channel 31, and is continuous with the first cutout portion 33. A refillable pouch 30 is proposed in which a perforation line 34 that reaches the upper end of the pouch and a second notch 35 is provided at the upper end of the perforation line 34 (see Patent Document 1). Further, as shown in FIG. 7A, a slit 43 extending from the cutting start side notch portion 42 provided at the pouch side edge to the vicinity of the pouring path 41 and an upper end of the half cut portion 44 crossing the pouring path 41. A refilling pouch 40 provided with a cut end point notch portion 45 extending from the portion to the upper end edge of the pouch and a finger hooking hole 46 for hooking a finger when the half cut portion 44 is cut is proposed (Patent Document 2). reference). As shown in FIG. 7B, in the refilling pouch 40, when a finger is inserted into the finger hooking hole 46 and pulled upward, the uncut portion 47 for preventing unsealing in the pouch distribution process or the like is cut. At the same time, the half-cut portion 44 is cut to form the opening of the extraction channel 41.

  As described above, in any of the refillable pouches shown in FIGS. 6 and 7 (Patent Documents 1 and 2), the notch is provided at the edge of the pouch. For example, in Patent Document 1, even if the second cutout portion 35 is hooked during transportation or other handling of the pouch and the perforation line 34 is torn, the path to the half cut portion 32 is long. Although it is stated that the exit path 31 is not opened, when the perforation line 34 is torn from the second cutout portion 35, the value as a product is naturally impaired. That is, in the refilling pouch in which the notch is provided at the edge of the pouch, it is possible to reliably prevent the notch from being accidentally opened due to interference with other products in the distribution process or the like. In addition, there is a problem that the soft feeling of the pouch is lost due to the touch of the notch, and there is much room for improvement.

  In addition, as shown in FIG. 8, a refillable pouch 50 in which a notch is not present at the edge of the pouch has also been proposed (see Patent Document 3). The refilling pouch 50 includes a cut line 52 that crosses the pouring path 51 and a finger hooking hole 53 that is connected to the cut line 52. Patent Document 3 states that when a finger is put into the finger-holding hole 53 and pulled outside the pouch, an opening of the extraction path 51 is formed along the cut line 52.

JP 2006-273338 A JP 2002-68212 A Japanese Patent Laid-Open No. 9-207949

  As described above, Patent Document 3 describes that the cut line 52 is cut when the finger-holding hole 53 is pulled to the outside of the pouch, but in fact, it is extremely difficult to cut the cut line 52. . When the finger-holding hole 53 is pulled outside the pouch, that is, in the direction of the arrow, the cut line 52 is also subjected to a force in the direction of the arrow, and the tensile force is not applied in the direction along the cut line 52 and the cut line 52 is cut. I can't do it. When the finger hooking hole 53 is pulled in the direction of the arrow with a stronger force to cut the cut line 52, it can be easily predicted that the end of the finger hooking hole 53 circled in the figure is cut. Of course, the cut line 52 is not cut when the end of the cut is cut. As described above, according to the conventional refilling pouch, the unsealing property cannot be improved without providing a notch at the edge of the pouch.

  The objective of this invention is providing the pouch for refill which can implement | achieve favorable openability, without providing a notch in the edge of a pouch.

The refillable pouch according to the present invention is provided at a body part film constituting the front and back surfaces of the pouch, a heat seal part provided at the periphery of the pouch, and at least one corner part of the upper part of the pouch. And the spout portion formed on both sides, the opening planned line provided across the spout portion and the heat seal portion on both sides thereof, and the heat seal portion provided with the upper end of the planned opening line , Note and a finger hook portion fingers that hung upon opening the outlet portion, an opening will line is extended over the pouch edge from the periphery of the finger rest, the spout portion is the opening scheduled line The body film is opened only by cutting, and it is perpendicular to the planned opening line and a straight line along the direction in which a force is applied when opening the spout part by placing a finger on the finger-hanging part and A straight line extending from the upper end Angle α of and less than 180 degrees 90 degrees or more.

  Moreover, it is preferable that a finger hook part consists of a through-hole.

  Moreover, it is preferable that a finger hook part consists of a cut line which forms a tongue piece.

  Moreover, it is preferable that the incision line which forms a tongue piece is a curved shape which has a concave shape toward the direction to which force is applied when opening a spout part by hooking a finger.

  Moreover, it is preferable that the angle which the line which connects the both ends of a planned opening line and the cut line makes with respect to the direction in which a force is applied when opening the spout portion is 90 degrees or more and less than 180 degrees.

  Moreover, it is preferable that the planned opening line has a notch part cut in advance from the finger-hanging part over a predetermined length.

  According to the refillable pouch according to the present invention, the planned opening line extends from the finger-hanging portion, and the planned opening line moves toward the direction in which a force is applied when the finger-holding portion is hooked with the finger to open the spout portion. Since it inclines, it can implement | achieve favorable openability, without providing a notch part in the edge of a pouch. That is, when the finger-hanging portion is pulled, a force is applied in a direction along the planned opening line, so that it is easy to cut along the planned opening line. In addition, since the planned opening line is extended from the finger hanging part, even if there is no notch on the edge of the pouch, the force applied by placing a finger on the finger hanging part is transmitted to the planned opening line, and the transmitted force is Add in the direction along the planned opening line. Therefore, according to such a refilling pouch, since there is no notch at the edge of the pouch, it is difficult to cause problems such as unintentional opening in the distribution process or loss of softness of the pouch. When opening, it is possible to easily cut and open the planned opening line. Furthermore, since the tip end portion of the spout portion is not separated from the main body pouch by opening, extra dust is not generated, and complexity at the time of opening can be reduced.

  Further, if the finger-hanging portion is configured by a cut line that forms a tongue piece, in addition to the same effects as described above, a portion where the finger is hooked by the tongue piece (penetration) before opening operation such as a distribution process For example, the unintentional opening can be more reliably prevented.

  Also, if the incision line forming the tongue piece is a curved shape having a concave shape toward the direction in which a force is applied when the spout is opened by hooking a finger, the force is applied by applying the finger on the periphery of the finger rest. Since the tongue piece is located at the portion to be added, the finger does not come into contact with the film end surface at the periphery of the finger-hanging portion, so that stimulation to the finger is reduced and the opening performance is further improved.

The line connecting both ends of the switching inclusive line is a straight line extending from the upper end of and opening scheduled line perpendicular to the straight line along the direction in which force is applied at the time of opening the spout over a finger on the finger hook portion It is preferable .

  Further, if the planned opening line has a notch portion that has been cut in advance from the finger hanging portion over a predetermined length, the planned opening line can be more easily cut, and the opening performance is further improved.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing a refill pouch according to an embodiment of the present invention, and FIG. 2 shows a modification in which the angle formed between the crease line and the planned opening line is changed in the refill pouch shown in FIG. FIG. FIG. 3 is an enlarged view of the vicinity of the pour-out path of the refilling pouch shown in FIGS. 1 and 2, and a diagram showing another modification relating to the vicinity of the pour-out path. In the following description, when the refilling pouch 10 has the tongue piece portion 22, both ends of the cut line 21 are attached so that the tongue piece portion 22 can be easily folded back and for ease of explanation of the present invention. Although the description will be made assuming that the fold line 20 is formed, there is no problem even if a configuration in which the crease line 20 is not formed is adopted.

  The refilling pouch 10 shown in FIGS. 1 and 2 is a standing pouch. A standing pouch is a pouch that is provided with a town called a bottom gusset at the bottom of the pouch so that it is self-supporting when the contents are filled. Standing pouches are excellent in product display and display effect, and are widely used not only for toiletry products such as shampoos and liquid detergents, but also for packaging of food products such as liquid drinks and jelly drinks, and pharmaceuticals. Hereinafter, the refill pouch 10 will be described mainly as a standing pouch. However, the form of the refill pouch 10 may be a known form such as a three-sided bag, a jointed bag, or a gusset bag, and is not particularly limited. It is not something.

  As shown in FIGS. 1 and 2, the refillable pouch 10 includes a pair of body film 11 that constitutes the front and back surfaces of the pouch, and a bottom film 12 that is folded back into a mountain fold toward the upper side of the pouch. Composed. The bottom film 12 is a member that performs the function of a town called a bottom gusset. The refilling pouch 10 is formed by integrally joining two body part films 11 and a bottom film 12. Bonding of each film is usually performed by heat sealing, and the periphery of the pouch is heat-sealed with the bottom film 12 folded back in a mountain fold inserted in the lower part of the two body part films 11 forming the two front and back surfaces. (The heat seal part 13 is formed), and the filling part 14 which is a sealed space filled with the contents is formed. In addition, FIG. 1 has shown the state of the pouch with which the filling part 14 was filled with the content, and the bottom part film 12 is expand | deployed by the boat shape.

  The body part film 11 and the bottom part film 12 constituting the refill pouch 10 have basic performance as a packaging body such as impact resistance, wear resistance, heat resistance and gas barrier property as well as self-supporting properties. Since it is required, it is preferable to be made of a material excellent in rigidity and shape retention. Moreover, since these films are normally heat-sealed, it is preferable to provide a sealant layer. Therefore, the film constituting the body film 11 and the bottom film 12 is preferably composed of a laminated film including a sealant layer and a base film layer. The sealant layers of the respective films are overlapped and bonded so as to be inside the bag.

  Examples of the film constituting the base film layer include polyester (polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT), polycarbonate (PC), etc.), polyolefin (polyethylene (PE), polypropylene ( PP), etc.), polyamide (nylon-6, nylon-66, etc.), polyacrylonitrile (PAN), polyimide (PI), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polymethyl methacrylate (PMMA), poly A stretched or unstretched film of one layer or two or more layers composed of ether sulfone (PES) and ethylene-vinyl alcohol copolymer (EVOH) can be used.

  The films constituting the sealant layer include low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ethylene-propylene copolymer (EP), unstretched polypropylene (CPP), and biaxially stretched nylon (ON). , Ethylene-olefin copolymer, ethylene-acrylic acid copolymer (EAA), ethylene-methacrylic acid copolymer (EMAA), ethylene-vinyl acetate copolymer (EVA), etc. The film can be used.

  As a method for laminating the films constituting the base film layer and the sealant layer, known methods such as a dry lamination method and a hot melt lamination method can be used. The laminated film can also be produced by coextrusion using the above resin material.

  When high airtightness is required, the resin film constituting the pouch preferably has a gas barrier layer. As the gas barrier layer, a metal thin film such as aluminum, a resin film such as vinylidene chloride (PVDC), ethylene-vinyl alcohol copolymer (EVOH), or an arbitrary synthetic resin film is coated with an inorganic oxide such as aluminum oxide or silica. A vapor-deposited transparent vapor deposition film or the like can be provided. When the gas barrier layer is provided, the configuration thereof is not particularly limited, and for example, the gas barrier layer can be provided between the base film layer and the sealant layer. As a method for forming these thin films, a known method such as a vapor deposition method or a sputtering method can be applied. An adhesive layer may be provided between the gas barrier layer and the base film layer.

  The body part film 11 can be provided with a printed layer such as a product name, a product image, or a design (not shown) indicating the quality of the product on the surface, that is, the front and back surfaces of the refill pouch 10. This printed layer is generally provided on the inner surface of the base film layer.

  As described above, the periphery of the pouch is heat-sealed (the heat-seal portion 13 is formed) to form the filling portion 14 and the extraction passage 15 that is a passage for taking out the contents. The pouring path 15 is a passage in which a front end portion (one end) and both side portions are formed by the heat seal portion 13, and the other end is connected to the filling portion 14. The shape can be changed by changing the heat seal pattern. As shown in FIGS. 1 and 2, the dispensing channel 15 is generally formed at at least one corner of the upper part of the pouch so that the contents can be easily transferred.

  In the refilling pouch 10, the pouring path 15 is preferably provided on the lower side by a predetermined length from the upper end of the pouch, and the heat seal portion 13 above the pouring path 15 is provided with a cut line 21 or the like to be described later. A hole 23 is formed. The dispensing path 15 is preferably formed as high as possible above the pouch from the viewpoint of increasing the filling amount of the contents, and accordingly, the predetermined length (the length from the upper end of the pouch to the upper end of the dispensing path 15) As long as the finger hooking hole 23 can be formed, the shorter one is suitable. For example, it can be set to 20 to 50 mm. Moreover, it is preferable that the refilling pouch 10 has a shape in which the pouch is recessed inwardly at the lower portion of the extraction path 15, and the heat seal portion 13 and the lower end portion of the extraction path 15 are formed along the recessed shape. . By forming such a hollow shape in the lower part of the pouring path 15, when the contents are transferred to a dedicated container or the like, the opened pouring path 15 can be inserted into or brought close to the dedicated container, and the contents are transferred. Becomes easier.

  As shown in FIGS. 1 and 2, the refilling pouch 10 includes a planned opening line 17 that is cut when the contents are taken out and forms an opening 16 (see FIG. 5) of the extraction path. The planned opening line 17 is characterized by extending from the peripheral part of the finger hooking hole 23 to be described later across the heat sealing part 13 that forms the pouring path 15 and both side parts of the pouring path 15. As will be described in detail later, the finger hooking hole 23 is a finger hooking portion that hooks a finger when the pouring channel 15 is opened. For example, a rim line is formed by the crease line 20 and the cut line 21, and the rim line part 22 is formed by a finger hooking hole 23 (covered by the tongue part part 22 before opening) that appears when the tongue piece part 22 is folded back at the crease line 20. And a finger-hanging portion composed of a finger-holding hole 24 (through-hole) having a peripheral edge formed by a cut line 21.

  As described above, since the planned opening line 17 extends from the finger hooking hole 23, the force applied to the finger hooking hole 23 by applying a finger to the finger hooking hole 23 is applied to the planned opening line 17 even if there is no notch on the edge of the pouch. Communicated. More specifically, when opening the extraction channel 15, it is preferable that the pouch is provided over the edge of the pouch from the point where it intersects with the crease line 20 where a force is applied by putting a finger on the finger hooking hole 23. In such a planned opening line 17, a point intersecting with the crease line 20 becomes a cutting start point at which cutting of the planned opening line 17 is started at the time of opening, and an edge of the pouch becomes a cutting end point. In addition, from the viewpoint of preventing the contents from spilling when the pouring passage 15 is opened, the lower end portion (cutting end point) of the planned opening line 17 (opening passage opening 16) is more than the upper end portion (cutting start point). It is preferable to be formed to be inclined so as to be located outside the pouch.

  As shown in FIGS. 3 (a) and 3 (b), the planned opening line 17 is preferably composed of a half cut portion 18 and a notch portion 19. Here, the notch 19 is a part cut in advance from the upper end of the planned opening line 17 over a predetermined length. When the notch 19 is provided, the notch 19 A lower end portion of 19, that is, a contact point between the notch portion 19 and the half cut portion 18 becomes a cutting start point of the planned opening line 17. The predetermined length at which the notch portion 19 is provided is about 1 to 3 mm from the upper end portion of the planned opening line 17, that is, the contact with the crease line 20, etc. It is formed. Further, the half cut portion 18 is formed from the lower end portion of the notch portion 19 across the pouring path 15 and across the edge of the pouch. If the notched portion 19 is provided at the upper end portion of the planned opening line 17, the planned opening line 17 can be easily cut, and the half-cut portion 18 is formed on the extension line of the notched portion 19 as shown in FIG. Therefore, cutting along the half-cut portion 18 is possible. In addition, although the half-cut part 18 of the planned opening line 17 is normally formed in both surfaces of the trunk | drum part film 11, it can also be formed only in the surface or the back surface of the trunk | drum part film 11. FIG. Moreover, when the trunk | drum part film 11 is a laminated | multilayer film, the half cut part 18 can also be formed in an intermediate | middle layer.

  The planned opening line 17 may be a curved shape, but in order to facilitate cutting along the planned opening line 17, it is a linear shape in which the notch portion 19 and the half cut portion 18 are arranged on the same line. It is preferable. As shown in FIG. 3E, a part of the notch 19 can be bent, but in this case also, the lower side of the notch 19 and the half-cut part 18 are aligned on the same line. A straight line is preferred. Since the planned opening line 17 is cut from the upper end and is cut to the edge of the pouch, the cut piece does not remain in the vicinity of the pouring path 15, and the contents adhere to the cut piece. Thus, the transfer operation is not hindered (see FIG. 5).

  As shown in FIGS. 1 and 2 and FIG. 3 (a) and FIG. 3 (b) in detail, the heat seal portion 13 above the pouring path 15 includes an intersection with a planned opening line 17 in a part of the peripheral portion. A finger hooking hole 23 for hooking a finger when opening the exit path 15 is provided. The finger hooking hole 23 shown in the figure has a peripheral portion formed by a crease line 20 and a cut line 21. The heat-sealed portion surrounded by the crease line 20 and the cut line 21 is a tongue piece portion 22 that is bent at the crease line 20 when the planned opening line 17 is cut. Covered by the portion 22. As shown in the figure, the crease line 20 is formed upward from the upper end portion of the planned opening line 17, that is, the upper end portion of the notch portion 19. For example, the crease line 20 can be formed to be inclined toward the outside of the pouch as shown in FIG. 1, or can be formed straight toward the upper side of the pouch as shown in FIG.

  As shown in FIG. 1 and the like, the cut line 21 that forms the tongue piece portion 22 and the finger hooking hole 23 together with the crease line 20 crosses the crease line 20 at both ends, and is opposite to the direction in which the planned opening line 17 is inclined. It is formed in a U shape. That is, it has a curved shape that has a concave shape toward the direction in which a force is applied when a finger is put on the finger hanging hole 23 to open the extraction passage 15. If the incision line 21 is formed in this way, the tongue piece 22 is located at the portion where the finger is applied and force is applied when opening the extraction channel 15, so that the finger is placed on the film end surface around the finger hooking hole 23. Without touching, finger irritation is reduced and the opening is further improved. As described above, the crease line 20 and the cut line 21 form the peripheral edge portion of the finger hook hole 23. Therefore, the length and shape of the crease line 20 and the cut line 21 are adjusted so that the size of the finger hook hole 23 is appropriate. In general, both end portions of the crease line 20 and both end portions of the cut line 21 are formed so as to intersect each other. It should be noted that an uncut portion (not shown) can be left in a part of the cut line 21, and by leaving the uncut portion, it is possible to prevent the tongue piece portion 22 from being folded back during a distribution process or the like.

  Here, the crease line 20 is a line including minute holes or concave portions (including those formed by embossing). That is, the crease line 20 is a line referred to as a perforation or a half cut, or a line formed by embossing, and can have the same configuration as a known one. The configuration is, for example, a configuration in which micropores or recesses are repeated in an arbitrary pattern (broken line shape) or continuously (linear shape).

  As shown in FIG. 4, when the planned opening line 17 is cut, the tongue piece portion 22 is folded back along the crease line 20 so that the finger hooking hole 23 appears so that the finger can be hooked. Here, FIG. 4 is a diagram showing how force is applied in the direction of the arrow to the crease line 20 of the finger hooking hole 23 in the refilling pouch 10 shown in FIG. As described above, the finger hooking hole 23 is a hole having a peripheral edge formed by the crease line 20 and the cut line 21, and the size of the hole is preferably such that a finger can be inserted as described above. It is determined by the length of the crease line 20 and the cut line 21.

  Specifically, as shown in FIG. 3, the refillable pouch 10 is characterized in that the upper end of the planned opening line 17 intersects with a crease line 20 or a cut line 21 in a configuration that does not have a tongue piece portion 22 as will be described later. To do. Furthermore, the planned opening line 17 is characterized in that it is formed so as to be inclined toward the direction in which a force is applied when a finger is put on the finger hooking hole 23 to open the extraction passage 15. That is, in the configuration shown in FIG. 5A and the like, the crease line 20 is formed to be inclined toward the direction in which a force is applied. The force pulling the crease line 20 of the finger hooking hole 23 is applied to the cutting start point of the planned opening line 17, that is, the contact point between the notch part 19 and the half-cut part 18, and the force is applied in the direction along the planned opening line 17. . With such a configuration, even when the notched portion 19 of the planned opening line 17 is provided inside the pouch that does not interfere with other products in the distribution process or the like, the planned opening line 17 can be easily cut. It can be carried out. As indicated by arrows in the figure, the portion where the finger is applied by applying a finger in the finger hook hole 23 can be easily recognized from the shape of the finger hook hole 23 and the like, for example, (a) in FIG. As shown in (c), when the tongue piece portion 22 is provided, the crease line 20 portion is a portion to which a force is applied by applying a finger, and the direction in which the force is applied is a direction perpendicular to the crease line 20. It becomes. The direction in which the crease line 20 is pulled is preferably the direction toward the outside of the pouch because it is easier to pull. Therefore, the planned opening line 17 is preferably inclined to the outside of the pouch from the cutting start point, and the fold line 20 is also scheduled to open. Like the line 17, it is preferable to incline from the cutting start point to the outside of the pouch.

  As described above, the planned opening line 17 is formed so as to be inclined toward the direction in which a force is applied to the finger hooking hole 23 when the extraction channel 15 is opened. The direction in which the force is applied to the finger hooking hole 23 means to exclude the direction opposite to the direction in which the force is applied from the direction along the crease line 20. Specifically, as shown in FIGS. 3A and 3B, the angle α formed between the planned opening line 17 and the crease line 20 with respect to the direction in which a force is applied when opening the extraction path 15 is 90. It is preferable that the angle is not less than 180 degrees and less than 180 degrees. When the angle α is 180 degrees or more, that is, when the planned opening line 17 is formed in a direction perpendicular to the direction in which the finger is applied to the finger-holding hole 23 and the force is applied, the direction along the planned opening line 17 Therefore, it is difficult to cut the planned opening line 17.

  As shown in FIG. 3C, the planned opening line 17 and the crease line 20 can be formed so that the angle α is a right angle (90 degrees). A preferable angle α is about 90 to 120 degrees. In the refilling pouch 10 shown in FIG. 3 (a), the angle between the planned opening line 17, the crease line 20, and the cut line 21 that intersects both lines is set to approximately 120 degrees. Are equalized, the force is likely to act on the notch 19 side, and the planned opening line 17 can be easily cut.

As shown in FIGS. 3D and 3E, the finger-hanging portion does not have the crease line 20 (no tongue piece portion 22), and the heat seal portion 13 is cut through the cut line 21. It can also be set as a finger-holding hole 24 made of In addition, a cut line 21 that forms a portion to which a force is applied at the peripheral edge of the finger hooking hole 24 may be a curved line. As described above, even when the cut line 21 that forms the portion to which the force is applied in the finger hooking hole 24 has a curved shape, the angle α is preferably 90 degrees or more and less than 180 degrees as described above. In this case, the angle alpha, the perpendicular to the straight line indicated by a dot-chain line along the direction (arrow) force is applied straight line passing through the upper portion of the opening scheduled line 17 (FIG. 3 (e), the the cut line 21 Coincident) and the planned opening line 17 . In addition, as shown in the figure, when the finger hooking hole 24 has a circular shape or the like, the portion to which the force is applied at the periphery of the finger hooking hole 24 and the direction in which the force is applied are difficult to recognize. The direction can also be specified by printing or the like.

  The refilling pouch 10 having the above-described configuration can be manufactured, for example, by the following process. Specifically, first, a long body of a laminated film to be the body film 11 and the bottom film 12 is prepared by laminating each resin film constituting a base film layer, a sealant layer, and the like. Next, the long body of the body film 11 forming the front surface and the back surface is overlapped, and the long body of the bottom film 12 folded in a mountain fold toward the upper side of the pouch is inserted in the lower part, and the state Thus, heat sealing is performed by leaving a part of the upper end portion of the pouch, thereby forming the heat sealing portion 13, the filling portion 14 (not yet completely sealed), and the pouring path 15. A long body continuous in the width direction of the pouch is cut by a heat seal portion 13 that forms a side end portion of the pouch, thereby obtaining one pouch size. At the time of cutting or before and after the cutting, the refillable pouch 10 is manufactured by forming the planned opening line 17, the crease line 20, and the cutting line 21 and leaving a part of the upper end portion of the pouch. Note that the planned opening line 17, the crease line 20, and the cut line 21 can be provided by machining with a sewing machine blade, half-cut blade, die-cut roll, push blade, laser machining, embossing, or the like.

  In the refilling pouch 10 that is heat-sealed while leaving a part of the upper end of the pouch described above, after the contents are filled from the upper end, the upper end is heat-sealed, and the contents shown in FIGS. A refillable pouch 10 filled with is obtained. In addition, the self-supporting property of a pouch is expressed when the bottom film 12 expand | deploys at the time of filling of the contents.

  As described above, for example, the refilling pouch 10 shown in FIG. 1 is a passage for taking out the contents formed by the heat seal portion 13, and one end is connected to the filling portion 14 and the other end is heated. The pouring path 15 closed by the seal portion 13, and the planned opening line that is provided across the pouring path 15 and the heat seal portions 13 on both sides thereof and is cut when the contents are taken out to form the opening 16 of the pouring path 15. 17 and a finger hooking hole 23 formed in the heat seal portion 13 and having a peripheral edge portion formed by a crease line 20 and a cut line 21 intersecting with the cutting start point of the planned opening line 17, 15 is formed so as to be inclined in the direction in which a finger is applied to the finger-holding hole 23 when a force is applied to the opening 15, so that a good opening can be realized without providing a notch at the edge of the pouch. so That.

  As shown in FIG. 4, the refillable pouch 10 having such a configuration is configured such that when the planned opening line 17 is cut, the tongue portion 22 is folded back along the crease line 20, whereby the finger hooking hole 23 appears and the finger pouch 10 appears. It becomes possible to multiply. Then, by applying a force in the direction of the arrow in the figure to the portion of the crease line 20 of the finger hooking hole 23, the finger 16 is cut along the planned opening line 17 as shown in FIG. It is formed. According to the refilling pouch 10, since there is no notch at the edge of the pouch, unintentional opening can be prevented, and when the opening is intended, the planned opening line 17 can be easily cut. It can be opened.

It is a figure which shows the refilling pouch in embodiment which concerns on this invention. The description of the contents is omitted (hereinafter the same in the drawings). It is a figure which shows the modification which changed the angle which a crease line and a cut line make in the refilling pouch shown in FIG. FIG. 3 is an enlarged view (a, b) in the vicinity of the extraction path of the refilling pouch shown in FIG. 1 and FIG. FIG. 2 is a diagram showing a state in which a force is applied by placing a finger on a crease line of a finger hook portion in the refilling pouch shown in FIG. 1. In the refilling pouch shown in FIG. 4, it is a figure which shows a mode that force was further applied to the crease line of a finger-hanging part, the opening opening line was cut | disconnected, and the opening of the extraction path was formed. It is a figure which shows the conventional pouch for refill disclosed by patent document 1. FIG. It is a figure which shows the conventional pouch for refill disclosed by patent document 2. FIG. It is a figure which shows the conventional refilling pouch disclosed by patent document 3. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Pouch for refilling, 11 Body part film, 12 Bottom film, 13 Heat seal part, 14 Filling part, 15 Pouring path, 16 Opening of pouring path, 17 Planned opening line, 18 Half cut part 18 Notch part, 20 Crease line , 21 Incision line, 22 Tongue piece part, 23 Finger hooking hole, 24 Finger hooking hole, 30 Conventional refilling pouch, 31 Pouring path, 32 Half cut part, 33 First notch part, 34 Perforation line, 35 Second line Notch, 40 Conventional refilling pouch, 41 Outlet, 42 Cutting start side notch, 43 Slit, 44 Half cut, 45 Cutting end notch, 46 Finger hole, 47 Uncut, 50 Conventional Refillable pouch, 51 pouring path, 52 cut line, 53 finger hole.

Claims (6)

A body film constituting the front and back of the pouch;
A heat seal portion provided at the periphery of the pouch;
A spout portion provided at at least one corner of the upper part of the pouch and having a tip portion and both side portions formed by a heat seal portion;
A planned opening line across the spout and the heat seals on both sides thereof;
It provided the heat seal portion in which the upper end portion of the opening scheduled line lies, and the finger hook portion that the finger is hooked when opening the spout,
Equipped with a,
A planned opening line extends from the peripheral edge of the finger-hanging part to the edge of the pouch , and the spout part is opened by cutting the body film only with the planned opening line,
The angle α between the planned opening line and a straight line that extends perpendicularly to the straight line along the direction in which the force is applied when the spout is opened by placing a finger on the finger-hanging part and is 90 degrees or more A refillable pouch characterized by being less than 180 degrees .   The refillable pouch according to claim 1, wherein the finger hanging portion is formed of a through hole.   2. The refillable pouch according to claim 1, wherein the finger hanging portion is formed by a cut line that forms a tongue piece.   The refilling pouch according to claim 3, wherein the cut line forming the tongue piece has a curved shape having a concave shape toward a direction in which a force is applied when a finger is put on to open the spout portion. Line connecting both ends of the switching inclusive line is a straight line extending from the upper end of and opening scheduled line perpendicular to the straight line along the direction in which force is applied at the time of opening the spout over a finger on the finger hook portions claim 3. A refillable pouch according to 3 or 4.   The refillable pouch according to any one of claims 1 to 5, wherein the planned opening line has a cutout portion cut in advance from the finger-hanging portion over a predetermined length.

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