Bag opening

Abstract

To provide a disposable bag and a bag with a zipper, capable of freely opening and closing, capable of enclosing daily necessities in a space surrounded by a zipper seal side aligned with an upper seal side of the bag with a zipper, left and right seal sides having a notch, and a lower seal side. [Solution] The bag 1 is a disposable bag surrounded by four sealed edges, or a bag 1 with a zipper, and has a space 13 inside 54 of a space 12 with a concave or convex shape 15 for enclosing daily necessities 14. At least one of the resin film 7 on side A or the resin film 8 on side B has a concave or convex shape near a cut line 56. When the upper sealed edge 2 is cut and removed from the left and right notches 9, 10, the grippable edge a 30 and grippable edge b 31 of the remaining edge 29 near the cut line 56 open in a direction 51 outward of the direction 50 of the repulsive force.

Description

[Technical field]

[0001] The present invention relates to a bag opening and a method for making the same. [Background technology]

[0002] Conventional bags are generally constructed of a plastic film with a notch or zipper that is disposable when opened, and a notch is provided near the upper edge of the zipper so that one side can be cut off in a straight line along the longitudinal direction, creating an opening that can be cut off and opened freely, with daily necessities stored inside the bag.

[0003] The method of use is to cut a notch in the disposable bag, open the cut film and take out the contents, or to pinch the top of the zipper bag near the notch on the upper edge with your fingers, tear it apart and remove it, then pinch the film near the zipper with your fingers and open it in the perpendicular direction to take out the contents whenever necessary. After use, the open zipper is closed to stabilize the contents. Alternatively, a slide mechanism is provided on the zipper part to open and close the opening in the longitudinal direction.

[0004] Japanese Patent No. 7379162 discloses in paragraph

[0008] that "In the above-mentioned bag with zipper tape, the intermediate hinge may include a thin portion or a cut-out portion formed in the first and second engaging portions. Since the engaging portions have an uneven cross-sectional shape even among the zipper tape,..."

[0005] Japanese Patent No. 7247483 discloses in paragraph

[0035] that "In other words, by irradiating and scanning the front portion 5 and the back portion 6 with laser light, only the base material layer 11 is cut to form the half-cut line 15, and the front cut portion 50 and the back cut portion 60 are formed. Here, the half-cut line 15 refers to a recess or penetration portion formed in a part of the laminated resin sheet 100 as shown in Figure 4, and does not penetrate all of the layers of the resin sheet 100." [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 7379162 [Patent Document 2] Patent No. 7247483 Summary of the Invention [Problem to be solved by the invention]

[0007] In the prior art disposable bags and zippered bags made from resin film, the opening is opened when the user cuts a notch in the disposable bag to remove the contents. To remove the top of the zippered bag, the user pinches the part near the notch with their fingers and applies force in the continuous longitudinal direction of the zipper to tear it apart. In both cases, an opening is created by pinching and opening both sides of the top of the torn longitudinal opening with both fingers in directions perpendicular to each other.

[0008] However, since the cut-out edges, both of which extend longitudinally, and the upper edge which is torn off longitudinally from the notch along the zipper, both have continuous edges of the same length, it is difficult for people of all ages and genders, or for women with long, ornamental fingertips or numb fingertips in winter, to pinch both upper edges of the torn-off opening to create an opening in directions perpendicular to both upper edges with both fingers, and therefore an improvement is needed that will provide an opening that can be opened efficiently on the cut-off upper edge.

[0009] To provide a disposable bag with a zipper which can easily open an opening by opening the upper part of the disposable bag or the bag with a zipper in a direction perpendicular to the longitudinal direction and a disposable bag with a zipper seal side removed in advance, by solving the problem of the difficulty in opening the conventional bag. [Means for solving the problem]

[0010] The problem is solved by a bag of the present invention, which has a plurality of resin films each having a fusion film attached to each other, has an opening formed by a continuously connected sealed edge that is sealed to the resin films that face each other and are bonded together, has an opening formed by a sealed edge that is sealed to the resin films on side A and side B that face each other, has a space in which daily necessities can be inserted through the opening, and can be sealed by the sealed edge that forms the opening and a lower sealed edge, and the continuously connected sealed edges of the bag have an upper sealed edge in the longitudinal direction and a right sealed edge having a right notch that is aligned with the left sealed edge that has a left notch in the microwave direction, has a cut line for cutting out the upper sealed edge that connects the left notch to the right notch in the longitudinal direction, and is characterized in that at least one of the resin films on side A or side B of the resin film on the edge that remains cut from the cut line has a concave or convex shape near the cut line.

[0011] The problem is solved by a bag body of the present invention, which has a space surrounded by a continuous and connected seal edge that is sealed to multiple resin films that face each other and are bonded together, and a space shape surrounded by a seal edge that is integral with the shape of the space, wherein the space is surrounded and closed by a continuous seal edge of the resin film on side A and the resin film on side B that faces each other, and the seal edge surrounding the space has a zipper seal edge with a zipper that aligns with the upper seal edge in the longitudinal direction of the bag body, a right seal edge with a right notch that aligns with the left seal edge that has a left notch in the microwave direction, a cut line for cutting out the upper seal edge that connects the left notch to the right notch in the longitudinal direction, and at least one of the resin film on side A or the resin film on side B has a concave or convex shape near the cut line.

[0012] The problem is solved by the manufacturing method of the present invention, which is characterized by comprising the steps of: a manufacturing process for a bag body having a space surrounded by a seal edge that is continuously connected by sealing multiple resin films that have fusion films on each other and are sealed to each other and are bonded together, and a space provided with an opening, the molding process having a zipper tape sandwiched between the inner sides of the resin film on side A and the resin film on side B that face each other, passing between a roller with a concave or convex shape on side A and a roller with a concave or convex shape on side B to mold a concave or convex shape in the vicinity of the cut line in at least one of the resin film on side A or the resin film on side B; and a sealing process having both resin films having a concave or convex shape molded in the vicinity of the cut line in at least one of the resin film on side A or the resin film on side B after the molding process being sandwiched between both rollers, the C roll and the D roll, and welding by the seal edge that is continuously connected by both rollers. Effect of the Invention

[0013] The disposable bag and the zippered bag of the present invention are bags that can be easily opened by anyone, regardless of age or gender, even with numb fingertips in winter, by pinching both upper edges of the remaining uncut edge with the fingers and spreading them in the short direction perpendicular to the longitudinal direction to obtain an opening. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a front view of a disposable bag of the present invention. [Diagram 2] FIG. 2 is a front view of the zipper bag of the present invention. [Diagram 3] FIG. 1 is a perspective view of two rolls forming the resealable bag of the present invention. [Figure 4] 1 is a process diagram showing a method for producing a zippered bag of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The bag of the present invention has a concave or convex shape near cut line 56 on at least one of the resin film 7 on side A or the resin film 8 on side B of multiple sides of the disposable bag 1 in Figure 1 and the zippered bag 1 in Figure 2 (hereinafter referred to as the "bag").

[0016] The bag body 1 has multiple resin films each having a fusion film 49 attached to the other, and the resin film 7 on side A and the resin film 8 on side B, where the inner sides 54 of 49 and the inner sides 59 of 49 face each other and are bonded together, have multiple continuous sealed edges formed by heat sealing, adhesive sealing, etc. (hereinafter referred to as "seals").

[0017] The following describes the parts that can be shared between the disposable bag 1 in FIG. 1 and the zippered bag 1 in FIG.

[0018] The disposable bag body 1 of FIG. 1 will now be described. The bag 1 in Figure 1 is made up of multiple resin films 7 on side A and 8 on side B that are bonded together, and has an upper sealed edge 2 and a lower sealed edge 6 that are aligned in the longitudinal direction 48, and has a left sealed edge 4 that has a left notch 9 in the microwave direction 36 and a right sealed edge 5 that has a right notch 10 that is aligned with each other, each of which is connected and surrounded by four consecutive sealed edges to form a space 13 in which daily necessities 14 can be enclosed.

[0019] There is a cut line 56 connecting the vicinity of the left notch 9 to the vicinity of the right notch 10 for cutting out and removing the upper seal edge 2, and at least one of the resin film 7 on side A or the resin film 8 on side B has a recessed or protruding shape near the cut line 56.

[0020] When the upper sealing edge 2 is cut away from the left and right notches 9 and 10 along cut line 56, a cross-sectional view (cross-section AA') is shown in Figure E in which the upper sealing edge 2 has been cut away along cut line 56, leaving behind an edge 29, at least one of which has a concave or convex shape.

[0021] The zippered bag 1 of FIG. 2 will now be described.

[0022] The zippered bag 1 in Figure 2 has a space 12 surrounded by multiple sealed edges of multiple, bonded resin films 7 on side A and 8 on side B, and a continuous space 13 in which daily necessities 14 can be enclosed.

[0023] The bag body 1 is illustrated in a front view showing the entire bag body 1 in FIG. 2, a side view showing the left or right side of the bag body 1 in FIG. O, a front view showing the upper seal edge 2 cut away from the left and right notches 9 and 10 along cut line 56 in FIG. E, and a cross-sectional view (cross-section AA') showing the edge 29 remaining after the upper seal edge 2 has been cut away along cut line 56 in FIG.

[0024] 2 has a concave or convex shape in at least one of the resin film 7 on side A or the resin film 8 on side B near the cut line 56. Furthermore, the shape of the concave or convex may be a sphere, a circle, a cone, a cylinder, or a shape surrounded by a buffer film that encases air.

[0025] View I of Figure 2 is a front view in which the upper sealing edge 2 of the space 12 has an uncut edge 29 cut away from the left notch 9 in the left sealing edge 4 to the right notch 10 in the right edge 5 along cut line 56.

[0026] The space 12 of the bag body 1 has a zipper seal edge 44 in which a zipper 43 aligned in the longitudinal direction 48 with the upper seal edge 2 of the resin film 7 on side A and the resin film on side B that are bonded together, and the left and right seal edges 4, 5 having left and right notches 9, 10 aligned in the range direction 36 are each surrounded by a plurality of seal edges with continuous seals.

[0027] The space 12 is made up of multiple parts, and on the inner surface 54 where the resin film 7 on side A and the resin film 8 on side B to be bonded together face each other, at least one of the resin film 7 on side A or the resin film 8 on side B has a concave or convex shape near the cut line 56.

[0028] Furthermore, the left and right seal edges 4, 5 aligned vertically in the range direction 36 and the zipper seal edge 44 having a zipper 43 in the longitudinal direction 48 have a space 13 in which daily necessities 14 can be sealed and an insertion opening 45, and after the daily necessities 14 are sealed into the space 13 through the insertion opening 45, each of the lower seal edges 6 is surrounded and sealed by a plurality of continuous seal edges, and has four corners 32 on the outside of the integrally formed bag body 1.

[0029] That is, space 12 having a recessed or protruding shape in at least one of both films 7, 8 is surrounded by zipper seal edge 44 having zipper 43, seal edges 4, 5 having notches 9, 10, and upper seal edge 2. When cut away along cut line 56 from notch 9 to 10 in Fig. I, the shape of edge 29 that remains cut has multiple opposing recessed or protruding shapes 15 on grippable edge a 30 and grippable edge b 31 shown in the cross section of Fig. E. The cutout portions (cut lines 56) can be printed on resin film 7 on side A and resin film 8 on side B, which have a straight-line cutting performance.

[0030] Next, the space 13 integral with the space 12 and the zipper seal edge 44 can form a sealed bag body 1 in which daily necessities 14 are enclosed in the space 13 surrounded by the left and right seal edges 4, 6 of the continuous multiple sides and the lower seal edge 6.

[0031] Daily necessities 14 to be enclosed in the space 13 of the bag body 1 can be medical supplies related to medical care, medical miscellaneous goods related to non-medical care, cosmetics, or foods such as sweets or oden. The enclosed daily necessities 14 have a film structure such as a vapor deposition film or aluminum foil film to ensure safety, stability, and food sanitation law standards, and have valid data on safety and stability of the Food Sanitation Law or the Pharmaceuticals and Medical Devices Law (hereinafter referred to as "product specifications").

[0032] The specific configuration of bag body 1, which is formed by multiple continuous sealed edges of the resin film on side A 7 and the resin film on side B 8 facing each other, is that space 12 is surrounded by multiple continuous sealed edges, including an upper seal edge 2, a left seal edge 4, a right seal edge 5, the left seal edge 4 and the right seal edge 5, and a zipper seal edge 44, all of which are continuous and form bag body 1.

[0033] View O is a side view from the left or right, cut away from the left notch 9 to the right notch 10 in the longitudinal direction 48 of zipper 43. The tips of the concave or convex shapes 15 on inner sides 54 of pinchable a side 30 and pinchable b side 31 of the remaining edge 29 face each other and are pushed apart in an outward direction 51 by a repulsive force 50 between the tips of the concave or convex shapes 15. By pinching and further spreading pinchable a side 30 and pinchable b side 31, an opening 46 is formed in which zipper 43 is opened in a perpendicular direction 53.

[0034] More specifically, FIG. E is a cross-sectional view (cross-section AA') of the expanding opening 46, and since it is provided in the vicinity of cut line 56 on at least one of side A 7 or side B 8, the ends of the concave or convex shapes 15 facing each other between side A 7 and side B 8 come into contact with each other to form a space 12 of the concave or convex shapes 15 having a distance between the respective faces, a cut line 56 connecting notches 9 and 10 on the left seal 4 or right seal edge 5 for cutting and removing the zipper tape 11 and the upper seal edge 2 parallel to the zipper tape 11, and a repulsive force 54 between the surface of side a 30 and the surface of side b 31 of the edge 29 cut parallel to the zipper tape 11, which repel each other in the outward direction 51.

[0035] The space 13 integral with the zipper seal edge 44 can be sealed by the lower seal edge 6 of the multiple sealed edges, which are continuous or discontinuous (hereinafter referred to as "continuous") sealed edges through which daily necessities 14 are inserted through the sealing opening 45 of the bag body 1 in Figure 1 to form the bag body 1.

[0036] The space 12 is formed between the resin film on side A 7 and the resin film on side B 8, which face each other, and is surrounded by the upper seal edge 2, the left and right seal edges 4, 5, and the zipper seal edge 44 having the zipper 43, and has a gap (hereinafter referred to as "space") 12 having a distance such that the tips of the concave or convex shapes 15 near the cut line 56 of at least one of the resin film on side A 7 or the resin film on side B 8 come into contact.

[0037] When space 12 surrounded by multiple continuous seal edges is cut along cut line 56 from left and right notches 9, 10 to the notch in longitudinal direction 48 along zipper seal 11, a repulsive force 50 occurs when the end of concave or convex shape 15 of FIG. E shown on the inside 54 of the remaining cut edge 29 in FIG. I comes into contact with the end of the concave or convex shape 15, pushing open pinchable side a 30 of side A 7 and pinchable side b 31 of side B 8 of the remaining cut edge 29 in longitudinal direction 48 near zipper 43 in the outward direction 51. Therefore, by pinching both pushed-open edges 30, 31 with left and right fingers and opening them in the perpendicular direction 53, zipper 43 can be opened in the short direction perpendicular to longitudinal direction 48 to obtain bag 1 with opening 46.

[0038] The opening can be easily made by people of all ages and genders, young women with decorations on their toes, or even by numb fingertips in winter.

[0039] When edge 29 is cut from left notch 9 to right notch 10 in longitudinal direction 48, the tips of concave or convex shapes 15 on inside surfaces 54 of sides A 7 and B 8 face each other, so that grippable edges 30, 31 on sides A 7 and B 8 of cut-out edge 29 have a repulsive force in the short direction perpendicular to longitudinal direction 48, and zipper 43 having zipper tape 11 is spread by pinching edges 30, 31 with the left and right fingers to provide opening 46. An access opening 52 is formed as opening 46 having a repulsive distance due to repulsive force 50 as shown in Fig. E, which can be easily constructed to open.

[0040] In the edge 29 remaining after the upper sealed edge 2 in Figure I has been cut off, a repulsive force 50 acts in the outward direction 51 on the inner sides 54 of both sides A 7 and B 8 shown in Figure E between the ends of the concave or convex shapes 15, and the pinchable edge a 30 and pinchable edge b 31 spread out in the outward direction 51 have an opening 46 that can be pinched with both fingers and spread in the perpendicular direction 53 to form a removal opening 52, and the daily necessities 14 contained in the sealed bag 1 can be passed through the zipper 43 and removed by opening and closing it multiple times to remove the amount of content.

[0041] When the upper sealed edge 2 in Fig. I is cut away from the left notch 9 to the right notch 10, the edge 29 that remains cut away, on the inside 54 of the bag 1 in Fig. E, of the tip of the concave or convex shape 15 on side A 7 and the tip of the concave or convex shape 15 on side B 8 face each other and contact each other, creating a repulsive force 50 which acts in the outward direction 51 on each of the opposing grippable edges 30, 31, making it easy to grip and provide an opening 46. A similar use of repulsive force can be used by cutting away the right sealed edge 5 from the right notch 10 in the direction of the left notch 9.

[0042] The recessed or protruding shape 15 of the resin film on the opposing A surface 7 and B surface 8 is provided near the cut line 56 of at least one of the A surface 7 or B surface 8, so that the recessed or protruding shape extends from the surface 55 of the resin film on the A surface 7 toward the inward 54, and extends from the surface 55 of the resin film on the opposing B surface 8 toward the inward 54. The A surface 7 and B surface 8 facing each other refers to a state in which the fusion films 49 they have face each other.

[0043] The opening 46 to be opened is used by pinching the upper sealed edge 2 aligned in the longitudinal direction 48 of the zipper 43 extending in the longitudinal direction 48 of either the notch 9, 10 of the left or right sealed edge 4, 5, and cutting and removing the upper sealed edge 2 from the left notch 9 to the right notch 10 extending in the longitudinal direction 48 along the cut line 56. In the space 12 where the A side 7 and B8 of the remaining cut edge 29 in Figure E face each other, the ends of the concave or convex shapes 15 of the two faces come into contact with each other, creating a repulsive force 50 that has a distance at which the pinchable a side 30 of A side 7 and the pinchable b side 31 of B side 8 are pushed in the outward direction 51 to be opened.

[0044] The bag 1 has a sealed side on a surface B 8 opposite to the surface A 7, the surface B 8 being made of a seal or an adhesive seal.

[0045] The bag 1 has a space 13 for enclosing daily necessities 14, which is made up of left and right seals 4, 5 and a zipper seal edge 44 that is continuous with the zipper seal edge 44, and can be sealed by providing a lower seal edge 6 that is continuous with one side of the opening 45. In other words, the bag 1 is one in which daily necessities 14 are enclosing through the opening 45, and the opening 45 is sealed with a continuous or discontinuous (hereinafter referred to as "continuous") seal.

[0046] The bag body is composed of an upper sealed edge 2 connected by a plurality of sealed edges which have been successively made into bags, a cut line 56 connecting a left sealed edge 4 having a left notch 9 and a right sealed edge 5 having a right notch 10, a zipper sealed edge 44 of a zipper tape 11 having a zipper 43, a space 12 on the inside 54 where ends of concave or convex shapes 15 face each other, a space 13 for enclosing daily necessities 14, and a lower sealed edge 6 which seals an insertion opening 45.

[0047] A method for manufacturing the bag body 1 will now be described.

[0048] The bag 1 in Fig. 2 is manufactured by adding a zipper tape edge 44 to the manufacturing method of the bag 1 in Fig. 1. After describing the manufacturing method in which the zipper tape edge 44 in Fig. 2 is added, the manufacturing method in Fig. 1 will be described.

[0049] FIG. 4 is a process diagram of a flow 34 of the manufacturing method of the bag body 1. The flow 34 has a material supply device 57 followed by a molding process 58 and then a sealing process 59.

[0050] The material supply device 57 has a zipper tape roll 41, an A-side resin film roll 39, and a B-side resin film roll 40.

[0051] The material is placed in a position where the zipper tape roll 41, located in the flow direction 34, is sandwiched between the resin film roll 39 on the A side 7 and the resin film roll 40 on the B side 8 in the downward direction, and is sent to the next molding process 58.

[0052] The molding step 58 is a step of forming a recessed or protruding shape in the vicinity of the cut line 56 on at least one of the resin film 7 on the side A or the resin film 8 on the side B.

[0053] The concave or convex shape 15 in Fig. P is formed by the concave or convex roller 33. The concave or convex roller 37 on side A has a concave or convex shape 15 from the surface 55 of side A 7 in the inward direction 54, and at a lower position, the concave or convex roller 38 on side B has a concave or convex shape 15 from the surface 55 of side B 8 in the inward direction 54. It is sent to the next sealing process 59.

[0054] The sealing process 59 includes equipment for a C roll 16 and a D roll 17 that have heat that constitutes the product specifications of the multiple sealed sides of the bag body 1.

[0055] The rolls 16, 17 have the same specifications and circumferences, and are in contact with each other at a contact point 19 with the sealer surface 20. That is, the C roll 16 has a rotation direction 22 of C in the extrusion direction 47 while forming the A side 7 in Fig. N around the central axis 21 of C as an axis, and the D roll 17 that faces it has a rotation direction 24 of D in the extrusion direction 47 while forming the B side 8 in Fig. N around the central axis 23 of D as an axis, and the rollers rotate in the extrusion direction 47, whereby the upper sealed edge 2 and the left and right sealed edges 4, 5 that are connected continuously after the sealing process in which the A side 7 and the B side are welded and bonded together with the fusion film 49 are completed, the rollers rotate at the same speed in the extrusion direction 47 in the longitudinal direction 48, and the bag body 1 having the same circumferential distance is sent out from the bag making machine.

[0056] The A side 7 and B side 8 having the fusion film 49 in Fig. N are formed by bonding together using rolls of the same specifications. The bag body 1 has the sealer surface 20, the top seal side 2 has the top sealer surface 25, the left and right seal sides 4, 5 have the left and right side sealer surfaces 27, the zipper seal side 44 has the zipper seal side sealer surface 26, the space area 60 is surrounded by the continuous sealer surfaces 25-26-27, and the space area 61 is surrounded by the zipper seal side sealer surface 26 and the left and right side sealer surfaces 27, and the space area 60 and the space area 61 have a distance 28 from the sealer surface.

[0057] D roll 17 in contact with C roll 16 has a contact point 19, and the temperature of space area 60 and space area 61 between the cylindrical rolls can be controlled by individually setting a temperature lower than the sealing temperature of the cylindrical rolls.

[0058] The individual structures capable of setting low temperatures in the space area 60 and the space area 61 have equipment capable of setting individual temperatures different from the temperature setting of the sealer surface 20 and the temperature settings of the space area 60 and the space area 61, or a device for sending external cold air or insulation.

[0059] Furthermore, it is desirable that the material having an insulating effect in the spatial region 60 has a jig that holds the surfaces 55 of the A side 7 and the B side 8 to stabilize the shape 15 of the concave or convex portion on the inside 54 of at least one of them.

[0060] The temperature of the roller 37 for forming the concave or convex shape 15 on side A and the roller 38 for forming the concave or convex shape on side B in the molding process 58 is set to be significantly lower than the temperature in the sealing process.

[0061] In the molding process 58, a roller 33 with a concave or convex shape is pressed against the polyethylene terephthalate in the direction of the polyethylene, and the temperature is preferably set to, for example, about 100°C, which is the heat-resistant temperature of the polyethylene terephthalate, and the temperature must not be set so that the polyethylene faces each other at the sealing temperature and melts together. The temperature setting requires verification of the speed at which the bag body 1 is made, the composition of the resin film, and the melting temperature of the fusion film 49.

[0062] In the sealing process 59, the temperature at which the sealing surface of the cylindrical rolls 16 and 17 in FIG. 2 melts the fusion film 49 is set to 220°C to 280°C. Therefore, it is desirable to verify that the temperature corresponding to the space region 60 is a heat-resistant temperature at which the shape 15 of the recesses or protrusions formed in the molding process 58 can be stabilized, for example, around 100°C.

[0063] The configuration of the rolls 16 and 17 includes a sealer surface 20 of the rolls 16 and 17, a top sealer surface 25 of the heat seal surface, a zip sealer side sealer surface 26, and left and right side sealer surfaces 27. There is a space area 60, a space area 61, and a space 18 for enclosing daily necessities.

[0064] It is necessary to verify that the temperatures corresponding to the space regions 60 and 61 are set to, for example, about 100° C., which is the heat-resistant temperature of the fusion film 49 .

[0065] To form the bag body 1, the resin film on side A 7 and the resin film on side B 8 of N diagram in Figure 2 have fused fillers 49 laminated to each other's facing surfaces, and rotate 22, 24 in a direction 47 that extrudes a continuous bag body 35 in which each fused filler 50 is bonded together by sealing heat, and the resin film on side A 7 and the resin film on side B 8 are bonded together at the contact point 19 of roll C 16 and roll D 17, with side A 7 in contact with roll C 16 and side B 8 in contact with roll D 17, and the insides of side A 7 and side B 8 are bonded together by heat welding to form bag body 1.

[0066] Next, the state in which D roll 17 is sandwiched between zipper tape roll 41, resin film roll 39 on A side 7, and resin film roll 40 on B side 8 below C roll 16 is formed into a bag at zipper seal side 44 of zipper tape 11 having zipper 43.

[0067] The C roll 16 and the D roll 17 are positioned in a space 12 in a longitudinal direction 48 so that the tips of the recessed or protruding shapes 15 come into contact with each other. The area surrounding the distance between the sealer surface 20 and the bottom surface in the space 12 needs to be set at a temperature lower than the sealing temperature of the sealed sides to prevent the fusion films 49 from welding to each other, so it is effective to provide an auxiliary jig such as asbestos having a thickness that has a heat resistance effect in the area of ​​the space 12.

[0068] The auxiliary jig in the space 12 between the C roll 16 and the D roll 17 can manually adjust the force with which it is pressed inward 54 from the surfaces 55 of the films 7 and 8 facing each other at the same time, so that the tips of the concave or convex shapes of the resin film on the A side 7 and the resin film on the B side 8 are pressed with an appropriately adjusted force from the auxiliary jig which is fitted and fixed into the surface areas of the space 12 of both rollers, and a strong repulsive force 50 is obtained at the opening 46 of the remaining edge 29 when the upper sealing edge 2 is cut off.

[0069] A method for manufacturing the disposable bag 1 shown in FIG. 1 will now be described.

[0070] The manufacturing method of the disposable bag 1 in FIG. 1 is a manufacturing method configured by omitting the zipper tape side 44 from the manufacturing method of the bag 1 in FIG.

[0071] The manufacturing method in FIG. 1 does not have the configuration of zipper tape edge 44 in FIG. 2, and therefore zipper tape roll 41 in material device 57 is omitted from the process diagram showing the manufacturing method for a zippered bag in FIG. 4. Furthermore, zipper seal edge sealer surfaces 26 on both C roll 16 and D roll 17 in sealing process 59 are omitted, and space 12 is omitted.

[0072] The configuration in Figure 1 has daily necessities 14 in a space 13 of a bag body 1 connected by four consecutive sealed edges, including a lower sealed edge 6 aligned with an upper sealed edge 2 in the longitudinal direction 48, a left sealed edge 4 having a left notch 9 in the range direction 36, and a right sealed edge 5 having a right notch 10 aligned with the left sealed edge 2 in the longitudinal direction 48.

[0073] A cut line 56 is provided from the sealed edge having a notch on the side to be cut out and removed to the sealed edge having the opposing notch for making an opening 46 in the bag body 1, and at least one of the resin film 7 on side A or the resin film 8 on side B of the bag body 1 has a recessed or protruding shape near the cut line 56.

[0074] The two sides will further state what they share in common.

[0075] Both Figures 1 and 2 are cross-sectional views (cross-section AA') of edge 29 that remains after upper sealing edge 2 has been cut away, near cut line 56, and Figure E shows that at least one of resin film 7 on side A or resin film 8 on side B has a concave or convex shape near cut line 56.

[0076] The shape of the concave or convex portion on pinchable side a 30 and pinchable side b 31 of the remaining side 29 is such that their tips come into contact with each other and expand in the short direction, outward direction 51, due to a repulsive force 50 from the inside 54.

[0077] The cross section of FIG. E has a mechanism in which grippable side a 30 and grippable side b 31 are opened in the short direction perpendicular to the longitudinal direction 48 to easily provide an opening 46 and open the zipper 43.

[0078] The mechanism is that near zipper 43, at least one of the cut lines 56 of the remaining edges 29 of the resin film 7 on side A or the resin film 8 on side B has a concave or convex shape 15, and a repulsive force direction 50 is generated when the concave or convex shapes come into contact between the opposing sides A 7 and B 8, opening in the short direction to easily provide opening 46.

[0079] Furthermore, the mechanism by which the middle of pinchable side a 30 and pinchable side b 31 bounce off each other and open gradually wider is such that the shape of the concave or convex portion is small near both of the left and right notches 9 and 10 which form the ends and gradually becomes larger toward the middle, which gives a wide distance between sides 30, 31, making it easy to open with your fingers.

[0080] The bags 1 are made by a roll or flat type with a heat sealer. The bags 1 are sent out in the extrusion direction 47 from the bag making machine and cut into pieces by a cutter roll from the next bag 1. Furthermore, the notches 9, 10 on the left and right seals 4, 6 and the hanging holes 3, 9, 10 and 3 for hook sales at stores are made in-line, which reduces costs.

[0081] The bag body 1 of the present invention is formed in M ​​pieces by rotating the hot roll once or moving the hot plate up and down once.

[0082] When cutting from the left notch 9 to the right notch 10, it is desirable to use a film structure processed to have a straight cut performance for the resin film. There is no problem with cutting with scissors because the cut line 56 is printed from the left notch 9 to the right notch 10.

[0083] A continuous bag body 1 with a width 42 and a range direction 36 having an insertion opening is cut and notched by a cutting blade such as a circular one for each sheet. An in-line process is desirable to reduce costs. It can be configured by adding it to the process diagram of the present invention.

[0084] Daily necessities include a wide range of items such as sanitary paper, medical supplies, medical sundries, cosmetics, sanitary products, household paper, food, animal and plant related products, and items for makeup, nursing care, or body wiping, including food, clothing, and shelter. Items necessary for daily life can be enclosed, such as dry tissue paper, wiping sheets for makeup, cosmetic sundries such as cotton puffs, wiping towels for nursing care, tissue paper, body wiping paper towels, tissue paper, kitchen paper, toilet paper, sterilized medical supplies, medical sundries gauze, nonwoven sheets, napkins, wiping sheets, and oden with soup.

[0085] Furthermore, they have a moisturizing agent (liquid) that moisturizes the skin during use, and provide the efficacy of cosmetics; or they are patches that absorb body heat from the affected area; or they are products (such as gel sheets) that relieve joint or muscle fatigue; or they have a base that prevents hay fever.

[0086] The enclosed laminate is, for example, a laminate in which individual tissue papers or grease blotting papers are folded and stacked in a pop-up manner, or a laminate in which individual tissue papers or grease blotting papers are folded and stacked (hereinafter referred to as the "laminate"). Spherical cotton balls or small pieces of cosmetic cotton, which are difficult to stack, are enclosed in the bag 1 in a pile or lined up side by side.

[0087] The resin film forming the bag body 1 can be selected at will, but it is desirable for the bag to be made of a resin film having barrier properties suitable for everyday products that can withstand the stability tests of the Food Sanitation Act or the Pharmaceuticals and Medical Devices Act, and for the resin film to be of a certain thickness, or a single or multi-component film, or a metal foil, or a vapor deposition, etc., such that the contents are safe and stable when the bag is unopened. [Explanation of symbols]

[0088] 1 bag body 2 Upper seal edge 3 Hanging hole 4 Left seal side 5 Right side of seal 6 Bottom seal edge 7 A-side resin film 8 B-side resin film 9 Left Notch 10 Right Notch 11 Zipper Tape 12 Space 13 Space 14 Daily necessities 15 Shape of concave or convex parts 16 C-roll 17 D-Roll 18 Space for storing daily necessities 19 Contacts 20 Sealer Surface 21 C's central axis 22 C rotation direction 23 D central axis 24 D rotation direction 25 Upper sealer surface 26 Zipper seal edge sealer surface 27 Left and right side sealer surfaces 28 Distance from sealer surface 29 Uncut Edges 30 Pick up the a side 31 Grab the B side 32 Exterior angle 33 Concave or convex rollers 34 Flow Direction 35 Continuous bag 36 Range Direction 37 Rollers with concave or convex shapes on the A side 38 Rollers with concave or convex shapes on the B side 39 A-side resin film wrapping 40 B-side resin film wrapping 41 Zipper Tape Wrap 42 Width of bag body 43 Zipper 44 Zipper seal side 45 Envelope 46 Opening 47 Extrusion direction 48 Longitudinal 49 Adhesive Film 50 Repulsion 51 Outer direction 52 Outlet 53 Orthogonal Direction 54 Inside 55 Surface 56 Cut Line 57 Material supply device 58 Molding process 59 Sealing process 60 Space Region 61 Space Regions

Claims

1. A surface A of the resin film having a fusion film and a surface B of the resin film having a fusion film are bonded together to face each other and sealed, and an opening is formed by a continuous sealing edge; A bag body having a space in which daily necessities can be inserted from the insertion opening, and capable of being sealed by the sealing edge forming the insertion opening and a lower sealing edge, The sealing edge of the bag body includes an upper sealing edge in a longitudinal direction and a right sealing edge having a right notch aligned with a left sealing edge having a left notch in a range direction, a cut line for cutting and removing the upper seal edge connecting the left notch to the right notch in the longitudinal direction; At least one of the outer surfaces of the side A resin film or the side B resin film of the side that is left uncut from the cut line has a recess extending from the outside of the bag body of the resin film toward the inside, and a protrusion extending from the inside of the bag body toward the outside, The resin film has, on an inner surface thereof, the convex portion extending from the outer side to the inner side of the bag body, and the concave portion extending from the inner side to the outer side of the bag body, A bag body, characterized in that the shape of the recess or protrusion is located in the vicinity of the cut line.

2. a surface A of a resin film having a fusion film and a surface B of a resin film having a fusion film are bonded together to face each other and sealed, and an injection opening is formed by a continuous and connected seal edge, a space surrounded by the seal edge is formed, and the space is in communication with the injection opening, A bag body having a space in which daily necessities can be inserted from the insertion opening, and capable of being sealed by the sealing edge forming the insertion opening and a lower sealing edge, the space is surrounded and closed by the continuous seal edge of the resin film on the side B facing the resin film on the side A, The seal edge surrounding the space has a zipper seal edge having a zipper aligned with the upper seal edge in the longitudinal direction of the bag body, a right seal side having a right notch aligned with a left seal side having a left notch in the range direction; a cut line for cutting and removing the upper seal edge connecting the left notch to the right notch in the longitudinal direction; At least one of the outer surfaces of the A-side resin film and the B-side resin film has a recess extending from the outside of the bag body to the inside of the bag body, and a protrusion extending from the inside of the bag body to the outside of the bag body, The resin film has, on an inner surface thereof, the convex portion extending from the outer side to the inner side of the bag body, and the concave portion extending from the inner side to the outer side of the bag body, The bag body is characterized in that the shape of the recess or protrusion is located in the vicinity of the cut line.

3. 3. The bag body according to claim 1, wherein the shape of the recess or protrusion has a shape that gradually becomes larger from a small shape in the vicinity of the left and right notches.

Images