Opening of the bag

Abstract

This invention provides a disposable bag and a zippered bag that allows for the sealing of daily necessities in a space enclosed by the top seal edge, the zipper seal edge aligned with the top seal edge, the left and right seal edges with notches, and the bottom seal edge, and that can be opened and closed freely. [Solution] The bag body 1 is a disposable bag body surrounded by four sealing edges, or a zippered bag body 1 has a space 13 inside 54 of the space 12 that contains a recessed or convex shape 15 for sealing household goods 14. At least one of the resin film 7 on side A or the resin film 8 on side B has a recessed or convex shape near the cut line 56. When the upper sealing edge 2 is cut off from the left and right notches 9 and 10, the remaining edge 29 near the cut line 56 has a pinchable side a 30 and a pinchable side b 31 that open outwards in the direction 51 of the direction of the repulsive force 50.

Description

Technical Field

[0001] The present invention relates to an opening of a bag and a method for manufacturing the same.

Background Art

[0002] The configuration of a conventional bag body generally includes a disposable bag body that is opened by a notch made of a resin film or a zipper, and a notch is provided near the upper side where one side can be cut linearly along the longitudinal direction at the upper part of the zipper, and has an opening that can be freely cut and opened. Necessities of life are stored in the bag.

[0003] The usage method is as follows: for disposable ones, cut out from the notch and spread the cut film to take out the contents; for the bag with a zipper, pinch and tear off the vicinity of the notch having the upper part of the zipper on the upper side with fingers, and open and close the film near the zip in a direction perpendicular to the pinching with fingers to take out the contents in a timely manner each time. After use, the zips that are released are closed with each other to ensure the stability of the contents. Alternatively, a slide-type device is provided at 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 a zipper tape, the intermediate hinge may include a thin portion or a cut portion formed at the first and second engaging portions. Since the engaging portion has a cross-sectional shape with irregularities among the zipper tapes, ~."

[0005] Japanese Patent No. 7247483 discloses in paragraph

[0035] that "that is, by irradiating the front surface portion 5 and the back surface portion 6 with laser light and scanning, only the base material layer 11 is cut to form a half-cut line 15, and a front cutting portion 50 and a back cutting portion 60 are formed. Here, the half-cut line 15 refers to a concave portion or a through portion formed in part of the laminated resin sheet 100 as shown in FIG. 4, and does not penetrate all the layers of the resin sheet 100."

Prior Art Documents

[0006] [Patent Document 1] Patent No. 7379162 [Patent Document 2] Patent No. 7247483 [Overview of the project] [Problems that the invention aims to solve]

[0007] Conventional disposable bags and zippered bags made of resin film have openings that open when the user cuts through a notch in the disposable bag to remove the contents. In the zippered bag, the top part is removed by pinching the area near the notch with fingers and applying force in the continuous longitudinal direction of the zipper to tear it off. In both cases, the top edges of the torn-off longitudinal opening are pinched with fingers on both sides in perpendicular directions to open the opening.

[0008] However, since both the notched edges extending longitudinally and the upper edges torn longitudinally from the notch along the zipper have continuous edges of the same length, it is difficult for people of all ages, or women with long fingernails or numb winter fingertips, to pinch both upper edges perpendicularly with their fingers to create an opening. Therefore, an improvement is needed to create an opening that can be efficiently made from the cut-off upper edges.

[0009] The present invention solves the problem of the difficulty in opening conventional products and provides a zippered bag that can be easily opened by opening it in a direction perpendicular to the longitudinal direction of the top of the disposable bag or zippered bag, and a disposable bag in which the zipper seal edge has been removed in advance. [Means for solving the problem]

[0010] The present invention provides a bag that can be sealed by a seal edge that is sealed and connected to a plurality of resin films, the resin films facing each other and bonded together, the seal edge that is sealed and connected to the resin films on side A and side B facing each other, the bag having a space into which household goods can be sealed, and the seal edge that forms the seal edge and the lower seal edge that seals the bag, wherein the continuous seal edge of the bag has an upper seal edge in the longitudinal direction and a right seal edge that has a right notch adjacent to a left seal edge that has a left notch in the longitudinal direction, and has a cut line for cutting off the upper seal edge connecting the left notch to the right notch in the longitudinal direction, and has a recess or protrusion shape near the cut line on at least one of the resin films on side A or side B of the edge that remains after being cut off from the cut line.

[0011] The present invention provides a bag having a space surrounded by sealing edges that are continuous and connected to a plurality of resin films, each having a fusion film to the other, and the resin films facing each other and being bonded together, and a space surrounded by sealing edges that are integral to the shape of the space, wherein the space is closed by continuous sealing edges between the resin film on side B, which is facing the resin film on side A, and the sealing edges surrounding the space have a zipper sealing edge with a zipper aligned with the upper sealing edge in the longitudinal direction of the bag, a right sealing edge with a right notch aligned with the left sealing edge with a left notch in the longitudinal direction, and a cut line for cutting off the upper sealing edge connecting the left notch to the right notch in the longitudinal direction, and the bag is characterized in that at least one of the resin film on side A or the resin film on side B has a recessed or convex shape near the cut line.

[0012] The present invention provides a method for manufacturing a bag having a space surrounded by sealing edges that are sealed and connected to a plurality of resin films, each having a fusion film to the other resin films, and the resin films facing each other and being bonded together, and a space provided with an opening for sealing, wherein the manufacturing process comprises: a step of having a zipper tape sandwiched between the inner surfaces of the resin film on side A and the resin film on side B, passing between a roller with the shape of a recess or convex portion on side A and a roller with the shape of a recess or convex portion on side B, thereby forming a recess or convex portion on at least one of the resin film on side A or side B near the cut line; and a sealing process of sandwiching both resin films having the shape of a recess or convex portion formed near the cut line of at least one of the resin film on side A or side B after the molding process between the rollers of both C roll and D roll, and welding them together by sealing edges that are continuously connected by both rollers, thereby solving the problem. [Effects of the Invention]

[0013] The disposable bag and zippered bag of the present invention are bags that can be easily opened by pinching both upper edges of the remaining cut edges with your fingers and spreading them in the short direction perpendicular to the long direction, even by people of all ages or with numb fingertips in winter. [Brief explanation of the drawing]

[0014] [Figure 1] This is a front view of the disposable bag of the present invention. [Figure 2] This is a front view of the zippered bag of the present invention. [Figure 3] This is a perspective view of the two rolls that form the zippered bag of the present invention. [Figure 4] This is a process diagram showing the manufacturing method of the zippered bag of the present invention. [Modes for carrying out the invention]

[0015] The bag body of the present invention has a concave or convex shape in the vicinity of the cut line 56 on at least one of the resin films 7 on the A side or the resin films 8 on the B side of a plurality of surfaces of the disposable bag body 1 in FIG. 1 and the bag body 1 with a zipper in FIG. 2 (hereinafter referred to as "bag body").

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

[0017] Describe the parts that the disposable bag body 1 in FIG. 1 and the bag body 1 with a zipper in FIG. 2 can share respectively.

[0018] Describe the disposable bag body 1 in FIG. 1. The bag body 1 in FIG. 1 has an upper seal side 2 and a lower seal side 6 arranged in the longitudinal direction 48 of a plurality of resin films 7 on the A side and resin films 8 on the B side that are bonded together, and has a space 13 that can enclose a daily necessity 14 connected by four continuous seal sides of a right seal side 5 with a right notch 10 arranged parallel to a left seal side 4 with a left notch 9 in the range direction 36.

[0019] It has a cut line 56 connecting the vicinity of the left notch 9 to the vicinity of the right notch 10 for cutting and removing the upper seal side 2, and has a concave or convex shape in the vicinity of the cut line 56 on at least one of the resin films 7 on the A side or the resin films 8 on the B side.

[0020] When the upper seal side 2 is cut and removed along the cut line 56 from the left and right notches 9 and 10, the upper seal side 2 in FIG. E has a remaining side 29 cut along the cut line 56, and a cross-sectional view (cross-section A - A') having a concave or convex shape on at least one of 29 is shown.

[0021] Describe the bag body 1 with a zipper in FIG. 2.

[0022] The zippered bag body 1 in Fig. 2 has a space 13 that can enclose a continuous integrated daily necessities 14, which is surrounded by a plurality of sealing sides where a plurality of resin films 7 on the A side and resin films 8 on the B side that are to be bonded are continuous, forming a space 12.

[0023] The bag body 1 is illustrated by a front view representing the whole of Fig. 2, a side view representing the left or right side of the bag body 1 in Fig. O, a front view in which the upper sealing side 2 in Fig. 2 is cut off along the cut line 56 from the left and right notches 9 and 10, and a cross-sectional view (cross-section A - A') having a remaining side 29 where the upper sealing side 2 in Fig. E is cut off along the cut line 56.

[0024] The space 12 formed in Fig. 2 has a concave or convex shape in the vicinity of the cut line 56 on at least one of the resin film 7 on the A side or the resin film 8 on the B side. Furthermore, the concave or convex shape may be a spherical shape, a circular shape, a conical shape, a cylindrical shape, or a shape surrounded by a buffer film enclosing air, etc.

[0025] Fig. I in Fig. 2 is a front view having a remaining side 29 where the upper sealing side 2 of the space 12 is cut off along the cut line 56 from the left notch 9 on the left sealing side 4 to the right notch 10 on the right side 5.

[0026] The space 12 of the bag body 1 has a zipper sealing side 44 where a zipper 43 aligned with the upper sealing side 2 and the longitudinal direction 48 is provided on the zipper tape 11 for the resin film 7 on the A side and the resin film on the B side that are to be bonded, and is configured in a state surrounded by a plurality of sealing sides where the left and right sealing sides 4 and 5 having left and right notches 9 and 10 in the range direction 36 are arranged and each is continuous in sealing.​​​Space 12 consists of multiple A-side resin films 7 and B-side resin films 8 that are bonded together. On the inner surfaces 54 where these surfaces face each other, at least one of the A-side resin films 7 or B-side resin films 8 has a recessed or convex shape near the cut line 56.

[0028] Furthermore, the left and right sealing edges 4 and 5, which are vertically aligned in the range direction 36, and the zipper sealing edge 44, which has a zipper 43 in the longitudinal direction 48, have a space 13 into which household goods 14 can be sealed and an opening 45. After the household goods 14 are sealed into the space 13 from the opening 45, each of the lower sealing edges 6 is surrounded and sealed by a series of continuous sealing edges, forming a single bag body 1 with four corners 32 on the outside.

[0029] In other words, the space 12 having a recessed or convex shape in at least one of both films 7 and 8 is surrounded by the zipper seal edge 44 having the zipper 43, the seal edges 4 and 5 having notches 9 and 10, and the upper seal edge 2. When cut off along the cut line 56 having notches 9 to 10 in Figure I, the shape of the remaining edge 29 has the shape of multiple opposing recesses or convex shapes 15 having a pinchable a edge 30 and a pinchable b edge 31 as shown in the cross-section of Figure E. The resin film 7 on side A and the resin film 8 on side B can have a notch (cut line 56) printed on them, as they are resin films with straight-line cutting performance.

[0030] Next, the space 13, which is integrated with the space 12 and the zipper seal edge 44, can be sealed to form a bag 1 by enclosing the household goods 14 in the space 13, which is surrounded by the left and right seal edges 4,6 and the lower seal edge 6 of the continuous multiple edges.

[0031] The household goods 14 enclosed in the space 13 of the bag 1 can include medical supplies related to medical care, medical goods unrelated to medical care, cosmetics, sweets, or food items such as oden. The enclosed household goods 14 have a film structure such as a vapor-deposited film or aluminum foil film to ensure safety, stability, and compliance with the standards of the Food Sanitation Act, and have valid safety and stability data under the Food Sanitation Act or the Pharmaceuticals and Medical Devices Act (hereinafter referred to as "product specifications").

[0032] Space 12 is formed by a bag body 1 consisting of multiple resin films, A-side 7 and B-side 8, facing each other and connected by continuous sealing edges. The bag body 1 is surrounded by a continuous upper sealing edge 2, a left sealing edge 4, a right sealing edge 5, a zipper sealing edge 44, and multiple other continuous sealing edges.

[0033] Figure O is a side view from the left or right, showing the zipper 43 cut out from the left notch 9 to the right notch 10, which is aligned along the longitudinal direction 48 of the zipper 43. The pinchable sides a 30 and b 31 of the remaining cut-out edge 29 have inner surfaces 54 with their respective concave or convex shapes 15 facing each other. The repulsive force 50 between the tips of the concave or convex shapes 15 pushes the pinchable sides a 30 and b 31 outward 51. By pinching and further spreading the pinchable sides a 30 and b 31, an opening 46 is formed in the direction 53 perpendicular to the zipper 43.

[0034] Figure E is a cross-sectional view (section AA') of the expanding opening 46, and is provided near at least one of the cut lines 56 on surface A 7 or surface B 8. As the tips of the recessed or convex shapes 15 that face each other come into contact between surface A 7 and surface B 8, there is a space 12 of the recessed or convex shapes 15 that has distance between them, a cut line 56 connecting notches 9 and 10 on the left seal 4 or right seal edge 5 for cutting off the zipper tape 11 and the upper seal edge 2 parallel to the zipper tape 11, and a repulsive force 54 between the surfaces of side a 30 and side b 31 of the edge 29 that has been cut parallel to the zipper tape 11, creating distance in the outward direction 51.

[0035] The space 13, which is integrated with the zipper seal edge 44, can be sealed by the lower seal edge 6 of the multiple sealed seal edges, which are continuous or discontinuous (hereinafter referred to as "continuous"), for which household goods 14 are sealed inside the bag 1 shown in Figure 1 through the opening 45.

[0036] The space 12 is located between the resin films of side A 7 and side B 8, which are made up of multiple parts, and is surrounded by the upper seal edge 2, the left and right seal edges 4 and 5, and the zipper seal edge 44 having the zipper 43. The space 12 has a distance between the resin films of side A 7 and side B 8 where the tips of the recessed or convex shapes 15 located near at least one of the cut lines 56 of the resin films of side A 7 or side B 8 meet (hereinafter referred to as "space" 12).

[0037] When the space 12 surrounded by multiple consecutive seal edges is cut along the cut line 56 from the left and right notches 9 and 10 to the notch in the longitudinal direction 48 along the zipper seal 11, the repulsive force 50 caused by the contact between the tips of the concave or convex shapes 15 shown in Figure E on the inside 54 of the remaining edge 29 in Figure I causes the pinchable a-side 30 of side A 7 and the pinchable b-side 31 of side B 8 of the remaining edge 29 in the longitudinal direction 48 near the zipper 43 to be pushed open outwards 51. By pinching both pushed-open sides 30 and 31 with both fingers and opening them in perpendicular directions 53, the zipper 43 is opened in the short direction perpendicular to the longitudinal direction 48, resulting in the bag body 1 with an opening 46.

[0038] The opening can be easily made for people of all ages and genders, including young women with decorated fingernails or those with numb fingertips in winter.

[0039] When the left notch 9 is cut out to the right notch 10 in the longitudinal direction 48, the remaining edge 29 has the tips of the concave or convex shapes 15 on the inside 54 of face A 7 and face B 8 facing each other. Therefore, the pinchable edges 30 and 31 of face A 7 and face B 8 of the cut edge 29 have a repulsive force in the short direction perpendicular to the longitudinal direction 48. By pinching the pinchable edges 30 and 31 with the fingers on both sides, the zipper 43 on the zipper tape 11 is opened, creating an opening 46. The opening 46, which is the dispensing opening 52, has a distance that is repelled by the repulsive force 50 shown in Figure E, making it easy to open.

[0040] As shown in Figure I, when the upper seal edge 2 is cut off, the remaining edge 29 has a repulsive force 50 acting outward 51 on the tip of the concave or convex shape 15 that abuts against the inner surfaces 54 of both sides A 7 and B 8 shown in Figure E, causing the pinchable edge a 30 and pinchable edge b 31 to spread outward 51. This opening 46, which is an opening 52, can be opened 53 perpendicularly by pinching with both fingers, and the household goods 14 contained in the sealed bag can be removed by opening and closing the zipper 43 multiple times to take out the contents.

[0041] In Figure I, when the upper seal edge 2 is cut and removed from the left notch 9 to the right notch 10, the remaining edge 29, on the inside 54 of the bag body 1 in Figure E, has a repulsive force 50 that acts outwards 51 on each of the opposite pinchable edges 30 and 31, making it easy to pinch and open the bag 46. A similar application of repulsive force can be performed on the right seal edge 5 by cutting it from the right notch 10 to the left notch 9.

[0042] The shape of the recesses or protrusions 15 in the resin films of the opposing surfaces A 7 and B 8 is provided near the cut line 56 of at least one of the surfaces A 7 or B 8. Therefore, the shape of the recesses or protrusions is located in the direction from the surface 55 inward 54 of the resin film of surface A 7, and in the direction from the surface 55 inward 54 of the resin film of the opposing surface B 8. When surface A 7 and B 8 are facing each other, it means that the fused films 49 on each surface are facing each other.

[0043] The method of opening the opening 46 is to pinch the upper seal edge 2 of the zipper 43 that extends in the longitudinal direction 48 from the notches 9 and 10 of either the left or right seal edges 4 and 5, and cut off the upper seal edge 2 from the left notch 9 to the right notch 10 that extends in the longitudinal direction 48 along the cut line 56. In the space 12 where both sides A 7 and B 8 of the remaining edge 29 in Figure E face each other, the tips of the concave or convex shapes 15 of each side come into contact with each other and repel each other, creating a repulsive force 50 that pushes the pinchable a side 30 of side A 7 and the pinchable b side 31 of side B 8 outward 51, creating a distance that causes them to open.

[0044] The bag body 1 has a sealing edge on side B 8, which is opposite side A 7 and is made of a seal or adhesive seal.

[0045] The bag body 1 has a space 13 for enclosing household goods 14, consisting of left and right seals 4 and 5 and a continuous zipper seal edge 44, and can be sealed by providing a continuous lower seal edge 6 on one side of the opening 45. In other words, the bag body 1 is such that household goods 14 are enclosed through the opening 45 and the opening 45 is sealed by a continuous or discontinuous (hereinafter referred to as "continuous") seal.

[0046] The bag is constructed with an upper seal edge 2 made of multiple continuous seal edges, a cut line 56 connecting the left seal edge 4 having a left notch 9 and the right seal edge 5 having a right notch 10, a zipper seal edge 44 of a zipper tape 11 having a zipper 43, a space 12 on the inside 54 where the ends of concave or convex shapes 15 meet facing each other, a space 13 for enclosing household goods 14, and a lower seal edge 6 that seals the opening 45.

[0047] The method for manufacturing the bag 1 is described below.

[0048] The bag 1 in Figure 2 is manufactured using the method for manufacturing the bag 1 in Figure 1, with the addition of a zipper tape side 44. After describing the manufacturing method for the bag 1 in Figure 2 with the addition of the zipper tape side 44, the manufacturing method for Figure 1 will be described.

[0049] Figure 4 is a step diagram of the flow 34 for manufacturing the bag 1, and the sequence of the flow 34 is as follows: material supply device 57 followed by molding process 58 followed by sealing process 59.

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

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

[0052] The molding process 58 is a process of providing a recessed 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.

[0053] The recessed or convex shape 15 in Figure P is formed by the recessed or convex roller 33. The recessed or convex roller 37 on side A has the recessed or convex shape 15 extending inward 54 from the surface 55 of side A 7, and in addition, the recessed or convex roller 38 on side B has the recessed or convex shape 15 extending inward 54 from the surface 55 of side B 8 in a downward position. The material is then sent to the next sealing process 59.

[0054] The sealing process 59 includes equipment for heat-generating C-rolls 16 and D-rolls 17 that constitute the product specifications of multiple sealing edges of the bag body 1.

[0055] Rolls 16 and 17 are identical in specifications and have the same circumference, and are in contact with each other at a contact point 19 that has a sealer surface 20. Specifically, the C roll 16 has a rotational direction 22 of C that pushes out in the direction 47 while forming surface A 7 in Figure N, with the C central axis 21 as its axis, and the D roll 17, which is in contact with it, has a rotational direction 24 of D that pushes out in the direction 47 while forming surface B 8 in Figure N, with the D central axis 23 as its axis. As a result, the rollers rotate in the pushing direction 47, with the upper seal edge 2 and the left and right seal edges 4 and 5 being continuously connected, and the rollers rotate at the same speed in the pushing direction 47 of the longitudinal direction 48, so that a bag body 1 having the same circumference distance is fed out from the bag-making machine.

[0056] The A-side 7 and B-side 8, which have the fused film 49 in Figure N, are formed by bonding them together using rolls of the same specifications. The bag body 1 has a sealer surface 20, the upper seal edge 2 has an upper sealer surface 25, the left and right seal edges 4 and 5 have left and right edge sealer surfaces 27, the zipper seal edge 44 has a zipper seal edge sealer surface 26, the space area 60 has continuous sealer surfaces 25, 26, and 27, and the space area 61 is surrounded by the zipper seal edge sealer surface 26 and the left and right edge sealer surfaces 27, with a distance 28 between the sealer surface and the space area 60 and the space area 61.

[0057] The D roll 17, which is in contact with the C roll 16, has a contact point 19, and the temperature control of the space region 60 and the space region 61 between the cylindrical rolls has a structure that allows for individual temperature settings lower than the sealing temperature of the cylindrical rolls.

[0058] Each structure, which allows for lower temperature settings in the spatial region 60 and the space region 61, has equipment or devices for supplying external cold air or insulation material that allows for individual temperature settings where the temperature setting of the sealer surface 20 and the temperature settings of the spatial region 60 and the space region 61 are different.

[0059] Furthermore, it is desirable that the spatial region 60 has a material that provides thermal insulation, and that the jig holds down the surfaces 55 of surface A 7 and surface B 8 to stabilize the shape 15 of the recess or protrusion on at least one of the inner surfaces 54.

[0060] The temperature control for the roller 37 on side A and the roller 38 on side B of the molding process 58 for the recessed or convex shape 15 is set considerably lower than the temperature of 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 polyethylene to form the bag. For example, it is desirable to set the temperature to around 100°C, which is the heat resistance temperature of polyethylene terephthalate, but the temperature should not be set so that the polyethylenes facing each other weld together at the sealing temperature. When setting the temperature, it is necessary to verify the speed at which the bag 1 is made, the composition of the resin film, and the welding temperature of the fusion film 49.

[0062] In the sealing process 59, the sealing surface of the cylindrical rolls 16 and 17 in Figure 2 is set to a temperature of 220°C to 280°C for welding the fusion film 49. Therefore, it is desirable to verify that the temperature corresponding to the spatial region 60 is around 100°C, which is the heat resistance temperature at which the shape of the recess or protrusion 15 formed in the molding process 58 can be stabilized.

[0063] The rolls 16 and 17 are configured to have a sealing surface 20, an upper sealing surface 25 on the heat-sealing surface, a sealing surface 26 on the zip sealer edge, and sealing surfaces 27 on the left and right edges. They also have a space area 60, a storage area 61, and a space 18 for sealing household goods.

[0064] The temperatures corresponding to the spatial region 60 and the spatial region 61 need to be verified to be set, for example, to around the heat resistance temperature of the fusion film 49, which is approximately 100°C.

[0065] To form the bag 1, the resin film on side A 7 and the resin film on side B 8 in Figure 2 have fusion films 49 laminated to each other's opposing surfaces, and the fusion films 50 are joined together by sealing heat, and the continuous bag 35 is pushed out in a direction 47, rotating 22, 24. The resin film on side A 7 and the resin film on side B 8 are joined together by the contact point 19 of the C roll 16 and the D roll 17, with side A 7 in contact with the C roll 16 and side B 8 in contact with the D roll 17, and the insides of side A 7 and side B 8 are joined together by heat welding to form the bag 1.

[0066] Next, the D roll 17 is sandwiched between the zipper tape winding 41, the resin film winding 39 on side A 7, and the resin film winding 40 on side B 8 in the downward direction, forming a bag on the zipper seal side 44 of the zipper tape 11 which has a zipper 43.

[0067] The C roll 16 and D roll 17 are positioned in the longitudinal space 12 such that the ends of the concave or convex shapes 15 meet. The area surrounding the distance between the sealer surface 20 and the bottom surface in the space 12 requires a temperature setting lower than the sealing temperature of the sealing edge in order to prevent the fusion films 49 from welding together. Therefore, it is effective to provide an auxiliary jig with a heat-resistant thickness, such as asbestos, in the area of ​​the space 12.

[0068] The auxiliary jig located in the space 12 between the C roll 16 and the D roll 17 allows for manual adjustment of the force applied from the surfaces 55 of the opposing films 7 and 8 inwards 54. As the tips of the concave or convex shapes on the resin film of side A 7 and the resin film of side B 8 are fitted into the surface area of ​​the space 12 of both rollers and pressed with an appropriate force from the fixed auxiliary jig, a strong repulsive force 50 is obtained at the opening 46 of the remaining edge 29 when the upper seal edge 2 is cut off.

[0069] The manufacturing method for the disposable bag 1 shown in Figure 1 is described below.

[0070] The manufacturing method for the disposable bag 1 shown in Figure 1 is the same as the manufacturing method for the bag 1 shown in Figure 2, but with the zipper tape side 44 removed.

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

[0072] The configuration shown in Figure 1 is a bag body 1 with a space 13 containing household items 14, which is connected by four consecutive seal edges: a lower seal edge 6 aligned with the upper seal edge 2 in the longitudinal direction 48, a left seal edge 4 with a left notch 9 in the range direction 36, and a right seal edge 5 with a right notch 10 aligned with the left seal edge 4.

[0073] The bag 1 has a cut line 56 extending from a seal edge with a notch that is cut out and removed to an opposing seal edge with a notch, and at least one of the resin film 7 on side A or the resin film 8 on side B of the bag 1 has a recessed or convex shape near the cut line 56.

[0074] Let's discuss the areas where both sides have more in common.

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

[0076] The shape of the recesses or protrusions on the pinchable side a 30 and pinchable side b 31 of the remaining edge 29 is such that their ends come into contact with each other and the repulsive force 50 from the inside 54 causes them to spread outwards in the shorter direction 51.

[0077] The cross-sectional view in Figure E shows a mechanism in which the pinchable side a 30 and pinchable side b 31 can be opened in the short direction perpendicular to the longitudinal direction 48, and an opening 46 can be easily provided to open the zipper 43.

[0078] The mechanism involves having a recessed or convex shape 15 near the zipper 43, near at least one of the cut lines 56 of the remaining edge 29 of the resin film 7 on side A or the resin film 8 on side B, and acting in the direction 50 of the repulsive force that acts between the opposing sides A 7 and B 8 due to the recessed or convex shapes, thereby easily creating an opening 46 in the shorter direction.

[0079] Furthermore, the mechanism by which the middle of the pinchable side a 30 and pinchable side b 31 gradually open wider due to the rebound and contact is such that the shape of the concave or convex part has a small shape near both of the left and right notches 9 and 10 at the ends and gradually becomes larger towards the middle, creating a distance that spreads out between the sides 30 and 31, making it easy to open with fingers.

[0080] The bag body 1 is formed by a roll-type or flat-plate type with a heat sealer. The bag body 1 is fed out from the bag-making machine in the direction 47, and the next bag body 1 is cut into individual sheets by a cutter roll. Furthermore, the left and right seals 4 and 6, notches 9 and 10, and hanging holes 3 for hook sales at the store, as well as notches 9, 10 and 3, can be processed in-line to reduce costs.

[0081] The present invention forms M bags 1 by rotating the heat roll used for bag making once or by moving the heat plate up and down once.

[0082] When cutting from the left notch 9 to the right notch 10, a film structure with processing that allows for straight cuts in the notch is desirable. Printing the cut line 56 from the left notch 9 to the right notch 10 and cutting with scissors is also acceptable.

[0083] A continuous bag body 1 with a width of 42 and a range of 36, having a sealing opening, undergoes a cutting process and a notching process for each sheet using a circular or other cutting blade. An in-line process is desired to reduce costs. The process diagram of the present invention can be used in addition to the above.

[0084] Daily necessities include a wide range of items related to clothing, food, and shelter, such as sanitary paper, medical supplies, medical goods, cosmetics, sanitary products, household paper, food products, and animal and plant-related products, including those for cosmetic use, caregiving, or body wiping. These can include dry tissue paper, cosmetic wipes, cotton pads and other cosmetic goods, caregiving wipes, tissue paper, body wipes, toilet paper, kitchen paper, toilet paper, sterilizable medical supplies, medical goods such as gauze, non-woven fabric sheets, napkins, wipes, and oden (Japanese stew) containing broth—all essential items for daily life.

[0085] Furthermore, the product may contain a moisturizer (liquid) to hydrate the skin during use, providing the efficacy of a cosmetic product, or a poultice that absorbs body heat from the affected area, or a product (such as a gel sheet) to alleviate joint or muscle fatigue, or a base to prevent hay fever.

[0086] The laminated material enclosed is, for example, a laminate in which individual sheets of tissue paper or oil-blotting paper are folded and stacked in a pop-up manner, or a laminate in which individual sheets of tissue paper or oil-blotting paper are folded and stacked (hereinafter referred to as "laminated material"). Spherical cotton balls or small pieces of cosmetic cotton, which are difficult to stack, are enclosed in the bag 1 in a piled-up state or arranged side by side.

[0087] The choice of resin film forming the bag 1 is arbitrary, but it is desirable that it be made of a resin film with barrier properties that can withstand stability tests under the Food Sanitation Law or the Pharmaceuticals and Medical Devices Law and is suitable for everyday products, and that the resin film has a thickness, is a single or multi-layered film, or is made of metal foil or vapor deposition, and that it is configured to ensure the safety and stability of the contents when unopened. [Explanation of Symbols]

[0088] 1 bag body 2. Top seal edge 3. Hanging holes 4. Left side of the sticker 5 Right side of the sticker 6. The bottom edge of the seal 7. Resin film on side A 8. Resin film on side B 9. Left notch 10 Right notch 11 Zipper Tape 12 Space 13 spaces 14 Daily necessities 15 Shape of recess or protrusion 16 C roll 17 D Roll 18. Space for packaging household goods 19 contacts 20 Sealer surface 21 Central axis of C 22 Direction of rotation of C 23 D's central axis 24 Direction of rotation of D 25 Upper sealer surface 26 Zipper seal edge sealer surface 27. Sealer surfaces on the left and right edges 28 Distance from the sealer surface 29 Remaining edges 30 pinchable sides a 31 pinchable b side 32. Exterior angles 33 Rollers with concave or convex shapes 34. Direction of flow 35 consecutive sacs 36 Range direction 37 Rollers with concave or convex shapes on surface A 38 Rollers with concave or convex shapes on surface B 39. Resin film winding on side A. 40 B-side resin film winding 41 Zipper tape wrapping 42 Width of the bag 43 Zippers 44 Zipper seal side 45 Envelope 46 Opening 47 Direction of pushing 48 Longitudinal direction 49 Fusion film 50 Rebound force 51 Outward direction 52 Dispensing opening 53. Orthogonal directions 54 Inside 55 Surface 56 cut lines 57 Material supply device 58 Molding process 59. Sealing process 60. Spatial Domain 61 Space Domain

Claims

1. It has multiple fusion films attached to each other's resin films, and the resin films that are facing each other and bonded together have a sealing edge that is sealed and connected to each other, A bag having a space into which household goods can be sealed through the aforementioned opening, and which can be sealed by the sealing edge and lower sealing edge that form the opening, The continuous and connected seal edges of the bag body have an upper seal edge in the longitudinal direction and a right seal edge having a right notch adjacent to a left seal edge having a left notch in the range direction. It has a cut line for cutting off the upper seal edge connecting the left notch to the right notch in the longitudinal direction, A bag characterized in that at least one of the resin film on side A or the resin film on side B of the side remaining uncut from the cut line has a recessed or convex shape near the cut line.

2. A bag having multiple fusion films attached to each other's resin films, with a space surrounded by sealed edges that are sealed and connected to each other as the resin films face each other and are bonded together, and a space surrounded by the sealed edges that is integral to the shape of the space, The aforementioned space is enclosed and closed by the continuous sealing edges of the resin film on side B, which is facing the resin film on side A. The sealing edge surrounding the space has a zipper sealing edge with a zipper that is aligned with the upper sealing edge in the longitudinal direction of the bag body. It has a left seal edge with a left notch in the range direction and a right seal edge with a right notch adjacent to it, It has a cut line for cutting off the upper seal edge connecting the left notch to the right notch in the longitudinal direction, A bag characterized in that at least one of the resin film on side A or the resin film on side B has a recessed or convex shape near the cut line.

3. The bag body according to claim 1 or 2, wherein the shape of the recess or protrusion has a shape that gradually increases from a small shape near the left and right notches.

4. A method for manufacturing a bag having multiple resin films, each having a fusion film to the other, and having a space surrounded by sealed edges that are sealed and connected to the resin films that are facing each other and bonded together, and a space provided with an opening for sealing, The molding process involves a zipper tape sandwiched between the inner surfaces of the resin film on side A and the resin film on side B, which face each other. Passing between the roller with the shape of a recess or convex on side A and the roller with the shape of a recess or convex on side B, A step of forming a recessed or convex shape near the cut line on at least one of the resin film on side A or the resin film on side B, The sealing process involves sandwiching both resin films, which have the shape of the recess or protrusion formed near the cut line of at least one of the resin films on side A or side B after the molding process, between the rollers of both the C roll and the D roll. A method for manufacturing a bag, characterized in that it is constructed by a process in which the sealing edges, which are continuous and connected by both of the aforementioned rollers, are welded together.

5. The manufacturing method according to claim 4, wherein the temperature settings of both rollers, the temperature setting of the space region, and the temperature setting of the space region can be set individually.

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