Bag-making material

Abstract

The present application provides a bag-making material capable of being stably supplied. The bag-making material (10) includes a housing portion (2) and a protruding portion (3). The protruding portion (3) includes a sealed portion (31) in which a part of paper materials facing each other in a thickness direction intersecting with a length direction and a width direction are adhered together, a non-sealed portion (32) at which other parts of the parts of the paper materials facing each other in the thickness direction, except for the part, are not adhered to each other, at which the paper materials facing each other in the thickness direction form an internal passage (3A) communicating with an internal space (2A) and capable of allowing air to flow, and a hole portion (3H) in which the paper materials of the parts of the protruding portion (3), except for the part and the other parts, are perforated in the thickness direction, which communicates with the outside and the internal passage (3A).

Description

TECHNICAL FIELD

[0001] The present application relates to a bag-making material in a band shape which is supplied when a bag is manufactured. BACKGROUND

[0002] As one of the materials for manufacturing a bag, a bag-making material in a band shape folded in a tubular shape is known. As such a bag-making material, a material can be cited in which a cut is made at a cut-off predetermined line provided at a prescribed interval corresponding to the size of a bag to be manufactured along the longitudinal direction, and the cut portion becomes a bag.

[0003] As an example of a technique using the above-described bag-making material, a technique is proposed in which a bag-making material wound in a roll shape is fed out in a state of being sandwiched by a pair of rollers, and a processing of sucking and spreading a part of the bag-making material or a cutting processing at a cut-off predetermined line is performed on the bag-making material supplied by the feeding (see Patent Document 1).

[0004] Patent Document 1: Japanese Patent Application Laid-Open (JP A) No. 2006-69630

[0005] However, as described above, if air exists inside the bag-making material in a tubular shape (so-called inside of the tube), it is possible that the supply of the bag-making material becomes unstable due to the air inside. For example, in the case of supplying a bag-making material provided with a portion to be preliminarily attached locally, the air inside is blocked by the portion to be attached and causes the bag-making material to expand and deform, and thus it is possible that the bag-making material is wrinkled or twisted, or even that the bag-making material is detached from the supply path.

[0006] Therefore, there is room for improvement in terms of providing a bag-making material which can be supplied stably. SUMMARY

[0007] The present application was completed in view of the above-described problems, and one of the objects thereof is to provide a bag-making material which can be supplied stably. In addition, the present application is not limited to this object, and it is possible to position cases where effects and advantages which can be exerted from each structure shown in the "Detailed Description of Embodiments" described later, that is, effects and advantages which cannot be obtained in the related art, as other objects of the present application.

[0008] The bag-making material disclosed herein has the following structures (1) to (5).

[0009] (1) A bag-making material composed of a paper material, in which bag portions are arranged in a length direction intersecting a width direction with a cut-off predetermined line in between along the width direction, the bag portions being parts of a side-folded bag made into a strip with a support portion, the side-folded bag having a flat plate-shaped protruding portion protruding from a three-dimensional storage portion that stores contents, the bag-making material being in a strip shape along both the length direction and the width direction, and being in a tubular shape,

[0010] characterized by

[0011] the bag-making material having:

[0012] a storage portion that is a part corresponding to the storage portion in the bag portion, the storage portion being arranged adjacent to one side in the length direction with respect to the cut-off predetermined line, and having an internal space corresponding to a space that stores the contents; and

[0013] a protruding portion that is a part corresponding to the protruding portion in the bag portion, the protruding portion being arranged adjacent to the other side in the length direction with respect to the cut-off predetermined line, and being arranged adjacent to one side in the length direction with respect to the storage portion,

[0014] the protruding portion having:

[0015] a sealed portion that is formed by the parts of the paper material facing each other in a thickness direction intersecting both the length direction and the width direction being adhered together;

[0016] a non-sealed portion at which the other parts of the parts of the paper material facing each other in the thickness direction other than the part are not adhered to each other, at which the paper material facing each other in the thickness direction forms an internal passage that communicates with the internal space and through which air can flow; and

[0017] a hole portion that is formed by the paper material at a part other than the part and the other parts in the protruding portion being perforated in the thickness direction, the hole portion communicating with the outside and with the internal passage.

[0018] (2) The bag-making material according to (1), characterized by

[0019] the non-sealed portion being arranged at the other part at which only two layers of the paper material are provided in the thickness direction.

[0020] (3) The bag-making material according to (1) or (2), characterized by

[0021] The non-sealing portion is provided in the other portion in which four layers of the paper material are provided in the thickness direction.

[0022] (4) The bag manufacturing material according to any one of (1) to (3), characterized in that

[0023] The hole portion is provided so as to be provided through the hand hole provided in the protruding portion.

[0024] (5) The bag manufacturing material according to any one of (1) to (4), characterized in that

[0025] At the hole portion, the paper material of the portion other than the one portion and the other portion in the protruding portion is provided on one side in the thickness direction, and only the other side in the thickness direction is through in the thickness direction.

[0026] According to the present application, it is possible to provide a bag manufacturing material that can be stably supplied. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a plan view showing a bag manufacturing material of one embodiment.

[0028] Figure 2 is a schematic view showing a portion observed along arrows II-II of Figure 1

[0029] Figure 3 is a schematic view showing a portion observed along arrows III-III of Figure 1

[0030] Figure 4 is a schematic view showing a portion observed along arrows IV-IV of Figure 1

[0031] Figure 5 is a perspective view showing a gusset bag manufactured from a bag manufacturing material of one embodiment.

[0032] Figure 6 is a plan view showing a main portion of a bag manufacturing material of a first modification.

[0033] Figure 7 is a schematic view showing a portion observed along arrows VII-VII of Figure 6 DETAILED DESCRIPTION

[0034] Hereinafter, a bag manufacturing material as an embodiment will be described.

[0035] ​​​​The bag-making material of the present embodiment is a strip-shaped material supplied for manufacturing a gusset bag, and is composed of a paper material. The gusset bag manufactured from the bag-making material accommodates contents as a package target therein.

[0036] In the following embodiments, as the contents accommodated in the gusset bag manufactured from the bag-making material, a roll of toilet paper is exemplified. However, the contents accommodated in the present gusset bag are not limited to the roll of toilet paper, but can be household sanitary paper such as a roll of facial tissue or a roll of kitchen paper, or other articles.

[0037] In the present embodiment, directions for explanation are defined as follows.

[0038] In the explanation of the gusset bag, mutually orthogonal (crossing) longitudinal and lateral directions are used on the premise that the gusset bag is placed in a posture on a horizontal plane.

[0039] The longitudinal direction is a direction along both a lower side (indicated as "D" in the drawings) in which gravity acts, and an upper side (indicated as "U" in the drawings) which is a direction opposite to the lower side. The lateral direction is a direction along a horizontal direction. The lateral direction is a direction along four directions of a front direction (indicated as "F" in the drawings), a rear direction (indicated as "B" in the drawings), a left direction (indicated as "L" in the drawings), and a right direction (indicated as "R" in the drawings). The front and rear directions are directions facing opposite directions to each other, and the left and right directions are directions facing opposite directions to each other, and the front-rear direction and the left-right direction are mutually orthogonal (crossing).

[0040] In the explanation of the bag-making material, mutually orthogonal (crossing) length, width (indicated as "CD" in the drawings), and thickness (indicated as "TD" in the drawings) directions are used.

[0041] The length and width directions are directions along a direction in which the bag-making material extends in a strip shape.

[0042] The length direction is a direction corresponding to the longitudinal direction of the gusset bag, and is along a supply direction (indicated as "MD" in the drawings) of the bag-making material. The supply direction is so-called "paper feed direction". Upstream and downstream are determined with the supply direction of the bag-making material as a reference. A direction toward the upstream side in the supply direction of the bag-making material is set as one side of the length direction, and a direction toward the downstream side in the supply direction of the bag-making material is set as the other side of the length direction.

[0043] The width direction is a direction corresponding to a width of a strip formed by the bag-making material, and is also a direction corresponding to a width of the gusset bag. Either one of the left and right directions of the gusset bag corresponds to one side of the width direction, and the other one of the left and right directions of the gusset bag corresponds to the other side of the width direction.

[0044] The thickness direction is the direction that runs through the bag material, and it also corresponds to the front-to-back direction of the side-folded bag. Either the front or back of the side-folded bag corresponds to one side of the thickness direction, and the other side corresponds to the opposite side of the thickness direction.

[0045] [I. Implementation Method]

[0046] In one embodiment below, the structure related to the bag-making material is described using item [1]. Then, the function and effect of the structure of item [1] are described in item [2].

[0047] [1. Structure]

[0048] In this project [1], the structure of a side-fold bag made of bag-making material is outlined using sub-project [1-1], and the structure of the bag-making material is described in detail using sub-project [1-2]. Hereinafter, side-fold bags that are symmetrically arranged in the front-back direction and symmetrically arranged in the left-right direction are shown as examples, and bag-making materials that are symmetrically arranged in the width direction are listed as examples.

[0049] [1-1. Side-folded pocket]

[0050] like Figure 5 As shown, the side-folded bag 1′ is a bag with an expandable section that extends from the storage section 2′ to the handle section 3′ (extended section). The storage section 2′ is a three-dimensional part that stores a roll of toilet paper 9′. The handle section 3′ is a flat section that extends upward from the storage section 2′. A through-hole 3H′ is provided on the handle section 3′. The handle hole 3H′ is a through-hole provided to facilitate the user's hand to hook and carry the side-folded bag 1′.

[0051] If the side fold bag 1′ is applied to a gable-top type milk carton, the prismatic part filled with milk corresponds to the storage part 2′, and the part that is sealed at the top corresponds to the handle part 3′.

[0052] In the folded pocket 1′ illustrated here, paper material is attached to form the four parts 1F′, 1B′, 1L′, and 1R′ listed below.

[0053] • Front part 1F′: The part located at the front of the side fold pocket 1′

[0054] • Back section 1B′: The part located at the rear of the side fold pocket 1′

[0055] • Left fold 1L′: Located on the left side of the side fold pocket 1′

[0056] • Right fold 1R′: Located on the right side of the side fold pocket 1′

[0057] Left and right side folds 1L′ and 1R′ are arranged between the front part 1F′ and the back part 1B′.

[0058] The side folds 1L′ and 1R′ are the portions in the side fold pocket 1′ that form an opening, and each has a valley fold line 1V′ extending in the vertical direction at its middle portion in the front-to-back direction. Each side fold 1L′ and 1R′ is configured to fold freely at the valley fold line 1V′.

[0059] With the valley fold at the valley fold line 1V′ unfolded, the front part 1F′ separates from the back part 1B′, forming a space inside the side fold pocket 1′ for storing the toilet paper roll 9′. In this unfolded state, the toilet paper roll 9′ is stored in the side fold pocket 1′.

[0060] On the other hand, when the side folds 1L′ and 1R′ are folded at the valley fold line 1V′, the front part 1F′ and the back part 1B′ are close together, and no space is formed inside the side fold bag 1′ that can hold the toilet paper roll 9′. This folded state is the state in which the side fold bag 1′ is folded into a sheet, for example, the state used when storing the side fold bag 1′.

[0061] The aforementioned folded bag 1' is manufactured sequentially from the bag-making materials described below.

[0062] [1-2. Bag Making Materials]

[0063] like Figure 1 As shown, the bag-making material 10 is a strip-shaped material. In this bag-making material 10, the portions corresponding to the side-folded bag 1' to be manufactured, i.e., the bag portions 1, are arranged along the length direction, and predetermined cutting lines C along the width direction are provided at the boundaries between the bag portions 1. Figure 1 (Used as a double-dotted line in Chinese).

[0064] Each bag section 1 is provided with a storage section 2 corresponding to the storage section 2' of the side folded bag 1', and a handle section 3 (extend section) corresponding to the handle section 3' of the side folded bag 1'.

[0065] In this bag-making material 10, a storage section 2 is arranged adjacent to the upstream side (one side of the length direction) of the supply direction relative to the predetermined cutting line C, and a handle section 3 is arranged adjacent to the downstream side (the other side of the length direction) of the supply direction relative to the predetermined cutting line C. That is, in the bag-making material 10, the storage section 2 and the handle section 3 are arranged alternately along the length direction.

[0066] As described above, the bag-making material 10, which has bag portions 1 arranged along its length with the predetermined cutting line C between them, is subjected to the following bag-making process: either by expanding the receiving portion 2 of each bag portion 1, or by cutting at the predetermined cutting line C. In this way, side-folded bags 1' are manufactured sequentially.

[0067] like Figures 2-4 As shown, the bag-making material 10 is configured as a cylindrical shape formed by laminating together four materials 1F, 1B, 1L, and 1R listed below. After being laminated into a cylindrical shape, these materials 1F, 1B, 1L, and 1R are folded into a strip shape to become the bag-making material 10.

[0068] • Front material 1F: Material disposed on one side of the bag-making material 10 in the thickness direction.

[0069] • Back material 1B: Material disposed on the other side in the thickness direction of the bag-making material 10

[0070] • Left-side fold material 1L: Material set on one side of the bag-making material 10 in the width direction

[0071] • Right-side fold material 1R: Material set on the other side of the width direction in the bag-making material 10

[0072] The regions where materials 1F, 1B, 1L, and 1R extend in the length direction are the same as the regions where bag material 10 extends in the length direction. Furthermore, the regions where front material 1F and back material 1B extend in the width direction are the same as the regions where bag material 10 extends in the width direction. On the other hand, the region where left fold material 1L extends in the width direction extends only on one side of the region where bag material 10 extends in the width direction. Similarly, the region where right fold material 1R extends in the width direction extends only on the other side of the region where bag material 10 extends in the width direction.

[0073] The front material 1F and the back material 1B are materials that extend in a planar shape without being folded (without creases or fold lines).

[0074] On the other hand, the edge-folded materials 1L and 1R are folded at the valley fold line 1V respectively, and are sandwiched between the front material 1F and the back material 1B in a state of forming one layer and another layer with respect to the valley fold line 1V. The left-side folded material 1L and the right-side folded material 1R are arranged at a central interval in the width direction.

[0075] The bag-making material 10, which is configured with materials 1F, 1B, 1L, and 1R as described above, is roughly divided into the following two parts according to the number of layers of materials 1F, 1B, 1L, and 1R.

[0076] • Four-layer section P4: The part where the front material 1F, the back material 1B, and any one of the folded edge materials 1L and 1R overlap to form four layers.

[0077] • Second layer P2: The area where the front material 1F and the back material 1B overlap to form a second layer.

[0078] The four-layer portion P4 is a portion of the bag-making material 10 other than the region in the width direction center where the side fold materials 1L, 1R are not provided, and the four-layer portion P4 is provided on one side and the other side in the width direction, respectively.

[0079] Described in detail with respect to one side in the width direction, in the four-layer portion P4, one layer formed by the front surface material 1F, two layers formed by the left side fold material 1L folded at the valley fold line IV, and one layer formed by the back surface material IB are laminated, for a total of four layers.

[0080] In contrast to the four-layer portion P4 in which the four layers of the materials 1F, IB, 1L, 1R are provided in the thickness direction as described above, in the two-layer portion P2 to be described next, only the two layers of the front surface material 1F and the back surface material IB are provided in the thickness direction.

[0081] The two-layer portion P2 is a portion of the region in the width direction center of the bag-making material 10 where the side fold materials 1L, 1R are not provided. In this two-layer portion P2, one layer formed by the front surface material 1F and one layer formed by the back surface material IB are laminated, for a total of two layers, without the side fold materials 1L, 1R interposed therebetween in the thickness direction.

[0082] The front surface material 1F includes the portion that becomes the front surface portion 1F' of the side fold bag 1' in the description of the side fold bag 1'. Also, the portion that becomes the back surface portion IB' of the side fold bag 1' is included in the back surface material IB. Similarly, the portions that become the side fold portions 1L', 1R' of the side fold bag 1' are included in the side fold materials 1L, 1R.

[0083] The form in which the materials 1F, IB, 1L, 1R described above are adhered at the storage portion 2 of each bag portion 1 is different from the form in which they are adhered at the hand holding portion 3.

[0084] Furthermore, the materials 1F, IB, 1L, 1R can use various paper materials known in the art, and various bag-making materials in which paper is the main component can be used.

[0085] In the one embodiment illustrated here, as the front surface material 1F and the back surface material IB, a single-sided laminated paper in which a thermoplastic fusion layer is not laminated on the front surface but is laminated on the back surface is used. On the other hand, for the left and right side fold materials 1L, 1R, a double-sided laminated paper in which a thermoplastic fusion layer is laminated on both the front surface and the back surface is used.

[0086] However, not only the left and right side fold materials 1L, 1R, but also the front surface material 1F and the back surface material IB can use a double-sided laminated paper. Alternatively, the materials 1F, IB, 1L, 1R can be materials in which a sealing material is applied to a portion including the portion to be adhered.

[0087] That is, in the materials 1F, 1B, 1L, 1R, as long as the functional agent for the additional attachment is attached at least at the portion to be attached.

[0088] As shown in FIG. 1, in the housing portion 2, the sealing layer 2S that attaches the materials 1F, 1B, 1L, 1R to each other is provided in advance at the end edge portion in the width direction. Figure 2

[0089] As shown in FIG. 1, in the housing portion 2, the sealing layer 2S that attaches the materials 1F, 1B, 1L, 1R to each other is provided in advance at the end edge portion in the width direction. Figure 1 Figure 2

[0090] • The first sealing layer 21S: the sealing layer 2S that attaches the front surface material 1F and the left edge-fold material 1L to each other

[0091] • The second sealing layer 22S: the sealing layer 2S that attaches the back surface material 1B and the left edge-fold material 1L to each other

[0092] The housing portion 2 that is formed by attaching the materials 1F, 1B, 1L, 1R by the sealing layer 2S has an internal space 2A that corresponds to the space in which the roll toilet paper 9' is housed in the edge-folded bag 1'. The internal space 2A is the space in the inside of the cylinder surrounded by the materials 1F, 1B, 1L, 1R, and can also be said to be the space that exists in most of the housing portion 2 except for the end edge portion in the width direction. When the bag portion 1 is manufactured into the edge-folded bag 1', this internal space 2A expands into a space in which the roll toilet paper 9' can be housed while the valley fold line 1V of the edge-fold material 1L, 1R is spread and the front surface material 1F and the back surface material 1B are separated from each other.

[0093] As shown in FIG. 1, in the hand-held portion 3, the sealing layer 3S that attaches the materials 1F, 1B, 1L, 1R to each other is provided in advance at most (part of) of the width direction. Figure 3 In the hand-held portion 3 exemplified in one embodiment, the sealing layer 3S (indicated by the meshed dots in FIG. 3) is provided in advance only at the four-layer portion P4. As shown in FIG. 3, the sealing layer 3S is provided at most (part of) of the width direction.

[0094] Figure 1 Figure 3 As shown in FIG. 3, the sealing layer 3S is provided at most (part of) of the width direction.

[0095] • The first sealing layer 31S: the sealing layer 3S that attaches the front surface material 1F and the left edge-fold material 1L to each other

[0096] • The second sealing layer 32S: the sealing layer 3S that attaches the back surface material 1B and the left edge-fold material 1L to each other

[0097] • The third sealing layer 33S: the sealing layer 3S that attaches the half portions of the left edge-fold material 1L that sandwich the valley fold line 1V to each other​​​​​

[0098] In the hand holding portion 3, a portion to which the above-mentioned sealing layers 31S, 32S, 33S are adhered is set as a sealing portion 31. Thus, in the hand holding portion 3, in addition to the sealing portion 31, a non-sealing portion 32 in which the front surface material IF and the back surface material IB facing each other in the thickness direction are not adhered to each other is provided. Further, in the explanation of the gusseted bag 1', a hole portion 3H corresponding to the above-mentioned hand holding hole 3H' is provided on the hand holding portion 3. That is, as the hand holding hole 3H' of the hand holding portion 3', the hole portion 3H is provided.

[0099] In Figure 1 In the illustrated hand holding portion 3, the sealing portion 31 and the non-sealing portion 32 are provided in most of the length direction, and the hole portion 3H is disposed in the length direction region in which the sealing portion 31 and the non-sealing portion 32 are provided. In this hand holding portion 3, the excess portion 30 is provided on the upstream side in the feeding direction with respect to the sealing portion 31 and the non-sealing portion 32.

[0100] The excess portion 30 is a portion provided so that the accommodation portion 2 can be expanded even if the bag making material 10 is cut on the slightly downstream side in the feeding direction with respect to the cutting intended line C. This excess portion 30 is adhered like the accommodation portion 2, and is provided between the sealing portion 31 and the non-sealing portion 32 and the cutting intended line C. In other words, the position of the cutting intended line C is set on the slightly upstream side in the feeding direction with respect to the sealing portion 31. The excess portion 30 can be directly retained without being cut off in the manufacturing process of the gusseted bag 1', but it is preferable to be cut off like the excess material portion 23 described later.

[0101] The sealing portion 31 is a portion in which all the materials IF, IB, IL, IR facing each other in the thickness direction are adhered together, and is provided in the four-layer portion P4 in the hand holding portion 3. The sealing portion 31 in which all the materials IF, IB, IL, IR of the four-layer portion P4 are adhered together can be said to be a portion that bears the function of ensuring the strength of the hand holding portion 3. Thereby, the strength of the hand holding portion 3' in the gusseted bag 1' manufactured from the bag making material 10 is ensured.

[0102] The non-sealing portion 32 is a portion in which the front surface material IF and the back surface material IB facing each other in the thickness direction are not adhered to each other, and is provided in the two-layer portion P2 in the hand holding portion 3. In other words, the non-sealing portion 32 is a portion in the region in which at least a part of the materials IF, IB, IL, IR facing each other in the thickness direction in the hand holding portion 3, other than the excess portion 30 and the sealing portion 31 (other portions). In Figure 1 In the above-mentioned embodiment, an example in which the non-sealing portion 32 is provided in the entire region of the two-layer portion P2 is described.

[0103] In the unsealed portion 32, an internal passage 3A is formed between the front material 1F and the back material 1B, communicating with the internal space 2A of the storage portion 2 and allowing air circulation. The internal passage 3A shown here extends along the length direction.

[0104] The internal space 2A of the storage section 2 exists in most of the area except for the end edge in the width direction. In contrast, the internal passage 3A of the non-sealed section 32 is a part of the center in the width direction. Therefore, the internal space 2A can be said to be a wider flow path (main road), and the internal passage 3A can be said to be a narrower flow path (narrow road).

[0105] As described above, the non-sealed portion 32 with an internal passage 3A is connected to the hole portion 3H, which will be described next.

[0106] like Figure 4 As shown, the hole 3H is a portion where there are no elements facing in the thickness direction, and it is also the portion from the handle portion 3 where the allowance portion 30, the sealing portion 31, and the non-sealing portion 32 are located. This hole 3H is provided through the handle portion 3 in the thickness direction, communicating with the outside and communicating with the internal passage 3A.

[0107] To summarize the internal space 2A, internal passage 3A, and aperture 3H, the internal passage 3A is a flow path provided along the length of the handle 3 to guide air from the internal space 2A to the aperture 3H. The aperture 3H is a flow path that communicates with the internal passage 3A and passes through at least a portion of materials 1F, 1B, 1L, and 1R in the handle 3 to discharge air from the internal passage 3A to the outside. In other words, the internal space 2A, internal passage 3A, and aperture 3H are provided so that air from the internal space 2A flows along the length and is discharged to the aperture 3H of the handle 3 instead of the storage portion 2.

[0108] Furthermore, the storage section 2 is further subdivided into three parts arranged sequentially from the upstream side of the supply direction toward the downstream side in the order of main section 21, bottom sealing section 22, and edge material section 23.

[0109] The main part 21 corresponds to the part that faces the toilet paper roll 9' in the side fold pocket 1'. The bottom sealing part 22 is the part that is affixed after the toilet paper roll 9' is stored in the main part 21. The edge part 23 is the part that is cut off after the bottom sealing part 22 is affixed.

[0110] The edge portion 23 of the bag-making material 10 illustrated here is provided with a through-hole 2H in the thickness direction. Figure 1An example in which the hole portion 2H is provided in the region in which the two-layer portion P2 extends in the width direction is shown. However, the hole portion 2H can also be provided in the bottom seal portion 22, or in the region in which the four-layer portion P4 extends in the width direction.

[0111] In addition, from the viewpoint of preventing foreign matter from mixing into the storage portion 2' after bagging, it is preferable that the main portion 21 of the storage portion 2 not be provided with a configuration in which at least a portion of the material 1F, 1B, 1L, 1R is penetrated, like the hole portions 2H, 3H.

[0112] [2. Effects]

[0113] In the past, if air is present inside a bagging material that is folded in a band shape and formed in a cylindrical shape, it can be possible for the air inside to cause the supply of the bagging material to become unstable. For example, in the case of supplying a bagging material provided with a portion that is preliminarily adhered, the air inside is blocked by the adhered portion and causes the bagging material to expand and deform, and thus it can be possible for the bagging material to wrinkle or twist, or even for the bagging material to come off the supply path. Alternatively, since the bagging material is cut at a position that deviates from the intended cutting line, the pitch of the bags cut from the bagging material can also deviate. In the case where a pair of rollers for gripping the bagging material is used in order to supply the bagging material, when a large amount of air accumulated inside the bagging material expands and is blocked by the preliminarily adhered portion, it can also be possible for the bagging material to not be supplied.

[0114] Therefore, there is room for improvement in terms of providing a bagging material that can be stably supplied.

[0115] The bagging material 10 of one embodiment has the above-described structure, and thus can achieve the following effects.

[0116] (1) According to the bagging material 10, even if air is present in the internal space 2A of the storage portion 2, the air can be discharged to the outside through the internal passage 3A of the non-seal portion 32 and the hole portion 3H in the hand portion 3. Thus, the supply of the bagging material 10 can be stabilized.

[0117] Therefore, it is possible to provide a bagging material 10 that can be stably supplied.

[0118] For example, in the case of supplying the bagging material 10 provided with a seal portion 31 in which the materials 1F, 1B, 1L, 1R are preliminarily adhered to each other by a seal layer 3S, even if air of the internal space 2A is present, the air is not blocked by the seal portion 31, but flows through the internal passage 3A of the non-seal portion 32 and is discharged from the hole portion 3H. In this way, it is possible to suppress the expansion and deformation of the bagging material 10 being supplied.

[0119] Since the expansion and deformation of the bag-making material 10 are suppressed, the generation of wrinkles or twists in the bag-making material 10 is suppressed, and the bag-making material 10 is also suppressed from being detached from the supply path. Furthermore, the bag-making material 10 is also suppressed from being cut at a position deviated from the cut line C, and the deviation in the pitch (size) of the manufactured gusset bags 1' is suppressed.

[0120] In the case where the bag-making material 10 is supplied in a state of being gripped by a pair of rollers, the air present in the internal space 2A of the bag-making material 10 is discharged through the internal passage 3A and the hole portion 3H in a manner of being squeezed by the pair of rollers. Therefore, the expansion of the bag-making material 10 due to the air in the internal space 2A being blocked by the seal portion 31 can be suppressed. From this point, the bag-making material 10 can also be stably supplied, and the operation rate of the production line for manufacturing the gusset bags 1' without stopping the supply of the bag-making material 10 can be improved.

[0121] (2) Since the non-seal portion 32 of the hand-holding portion 3 is disposed in the two-layer portion P2 provided with only two layers composed of the front material IF and the back material IB, the front material IF and the back material IB are easily separated compared to the case where the four-layer portion provided with four layers composed of all the materials IF, IB, IL, IR is disposed, and thus the internal passage 3A can be reliably formed. Therefore, the air in the internal space 2A can be reliably circulated to the hole portion 3H. Thus, the bag-making material 10 can be more stably supplied.

[0122] (3) The hole portion 3H of the hand-holding portion 3 is provided as a hand-holding hole 3H' of the hand-holding portion 3', and thus the hand-holding hole 3H' for easily hooking the hand of a user who carries the gusset bag 1' to carry the gusset bag 1' can be used as the hole portion 3H for discharging the air in the internal space 2A.

[0123] That is, the hole portion 3H that becomes the hand-holding hole 3H' assumes a stable supply function that contributes to the stable supply of the bag-making material 10 at the time of manufacturing the gusset bag 1' to which the bag-making material 10 is supplied, and assumes a carryability improvement function that improves the carryability of the user in the manufactured gusset bag 1'. Therefore, according to the hole portion 3H provided as the hand-holding hole 3H' of the hand-holding portion 3', the stable supply function can be exerted before the gusset bag 1' is manufactured, and the carryability improvement function can be exerted after the gusset bag 1' is manufactured.

[0124] [II. Modified Examples]

[0125] The above-described embodiments are merely examples, and are not intended to exclude various modifications or technical applications that are not explicitly shown in the embodiments. The structures of the embodiments can be variously modified and implemented without departing from the gist thereof. In addition, selection and combination can be made as needed.

[0126] For example, the non-sealing portion is not limited to being provided in the entire area of the two-layer portion provided with only two layers of the front material and the back material, and can be a portion that is the non-sealing portion only on the downstream side (the other side in the length direction) of the hole portion with respect to the feeding direction (the area on the upstream side with respect to the feeding direction can be included in the sealing portion).

[0127] In addition, as shown in Figure 6 , Figure 7 , the non-sealing portion 32" can not be provided in the two-layer portion P2", but can be provided in the four-layer portion P4" provided with four layers of the materials 1F", 1B", 1L", and 1R" (see Figure 7 ). In Figure 7 , an example is shown in which, in the left edge fold material 1L", one of the front material 1F" sides (either one of the one side and the other side in the thickness direction) of the two halves valley-folded at the valley fold line 1V" and the front material 1F" form an internal passage 3A". This internal passage 3A" communicates with the hole portion 3H" that communicates with the outside.

[0128] Figure 6 The bag-making material 10" exemplified is a material for manufacturing an edge-folded bag that is not provided with a hand hole, and there is no hole portion provided as a hand hole, and it can be said that a small-size hole portion 3H" that does not function as a hand hole is provided.

[0129] However, the internal passage 3A" of the present modified example can communicate with a hole portion provided as a hand hole, or can communicate with a hole portion provided separately from the hand hole. In one embodiment, a bag-making material 10 is exemplified that is used to manufacture an edge-folded bag 1' having a hand portion 3' provided with a hand hole 3H', but in a bag-making material used to manufacture an edge-folded bag that is not provided with a hand hole, the portion corresponding to the hand portion 3 even if not provided with a hand hole 3H' contributes to the portability, and thus can be directly referred to as a hand portion, and in addition thereto, can be referred to as a protruding portion with respect to a housing portion in a protruding attitude, or can be referred to as a top sealing portion that exhibits a fitting attitude or a disposition.

[0130] Further, the hole portion is not limited to a manner in which all of the materials in the hand portion are penetrated in the thickness direction except for the excess portion, the sealing portion, and the non-sealing portion, and can be a manner in which only one side or the other side of the material in the hand portion is penetrated in the thickness direction except for the excess portion, the sealing portion, and the non-sealing portion.

[0131] If a specific example is given, as exemplified in Figure 7 , with respect to the hole portion 3H", in the hand portion 3" except for the excess portion 30", the sealing portion 31", and the non-sealing portion 32", one side in the thickness direction (either one of the one side and the other side in the thickness direction) of the material can be penetrated in the thickness direction.Figure 7 The left edge folding material 1L" or the back material 1B" is provided on the other side in the thickness direction (on the lower side in the drawing) Figure 7 The material is not provided on the other side in the thickness direction (on the upper side in the drawing) (may be provided only through the front material 1F").

[0132] As for the position in the thickness direction through which the hole portion 3H" is provided, if the bag making material 10" is shipped in a state of being wound in a roll shape, by providing the other side in the thickness direction on the outer peripheral side (the one side in the thickness direction on the inner peripheral side), air of the bag making material 10" wound in a roll shape can be smoothly discharged.

[0133] Alternatively, if the bag making material 10" is shipped in a state of being corrugated folded like a folded paper, it is preferable that the hole portion 3H" through the one side in the thickness direction is provided in the other bag portion 1" adjacent to the bag portion 1" in which the hole portion 3H" through the other side in the thickness direction is provided. In this way, by alternately providing the direction through which the hole portion 3H" is provided as the one side and the other side in the thickness direction, air of the corrugated folded bag making material 10" can be smoothly discharged.

[0134] Note that the non-sealed portion can be provided in both the four-layer portion and the two-layer portion, and as the hole portion, not only the hand hole but also a hole portion other than the hand hole (for example, the hole portion 3H" described above) can be provided in parallel.

[0135] Further, the bag making material is not limited to the form in which four materials are attached, and can be a form in which three or less materials are attached, or a form in which five or more materials are attached. According to the bag making material in which three or less materials are attached, the attachment work for manufacturing the bag making material can be simplified. As for the bag making material in which five or more materials are attached, by selecting each material, various properties such as the sealing property, the waterproof property, and the printing property can be set according to the site where each material is used, and thus the improvement of the commerciality is facilitated.

[0136] Symbol Explanation

[0137] 1: bag portion;

[0138] 10: bag making material;

[0139] 1F: front material;

[0140] 1B: back material;

[0141] 1L: left edge folding material;

[0142] 1R: right edge folding material;

[0143] 1': edge folded bag;

[0144] 1F': front portion;

[0145] 1B′: back portion;

[0146] 1L′: left edge portion;

[0147] 1R′: right edge portion;

[0148] 1V′: valley fold line;

[0149] 2: housing portion;

[0150] 21: main portion;

[0151] 21S: first seal layer;

[0152] 22: bottom seal portion;

[0153] 22S: second seal layer;

[0154] 23: edge portion;

[0155] 2A: internal space;

[0156] 2S: seal layer;

[0157] 2H: hole portion;

[0158] 2′: housing section;

[0159] 3: hand-held portion (extension portion);

[0160] 30: excess portion;

[0161] 31: seal portion;

[0162] 31S: first seal layer;

[0163] 32: non-seal portion;

[0164] 32S: second seal layer;

[0165] 33S: third seal layer;

[0166] 3A: internal passage;

[0167] 3H: hole portion;

[0168] 3H′: hand-held hole;

[0169] 3S: seal layer;

[0170] 3′: hand-held section (extension section);

[0171] 9′: roll toilet paper (contents);

[0172] C: cut-off intended line;

[0173] P2: two-layer portion;

[0174] P4: Four-layer portion.

Claims

1. A bag-making material composed of a paper material, in which a bag portion, which is a portion of a gusset bag made into a strip with a flange, is arranged in a length direction intersecting a width direction with a cut-off predetermined line in between, the gusset bag having a flat plate-shaped protruding portion protruding from a three-dimensional storage portion that stores contents, the bag-making material being in a strip shape along both the length direction and the width direction, and being in a tubular shape, characterized in that the bag-making material has: a storage portion that is a portion corresponding to the storage portion in the bag portion, the storage portion being arranged adjacent to one side in the length direction with respect to the cut-off predetermined line, and having an internal space corresponding to a space that stores the contents; and a protruding portion that is a portion corresponding to the protruding portion in the bag portion, the protruding portion being arranged adjacent to the other side in the length direction with respect to the cut-off predetermined line, and being arranged adjacent to one side in the length direction with respect to the storage portion, the protruding portion having: a sealed portion that is formed by a portion of the paper material facing each other in a thickness direction intersecting both the length direction and the width direction being adhered together; a non-sealed portion at which other portions of the paper material facing each other in the thickness direction other than the portion are not adhered to each other, at which other portions the paper material facing each other in the thickness direction form an internal passage that communicates with the internal space and through which air can flow; and a hole portion that is formed by the paper material of a portion other than the portion and the other portions in the protruding portion being perforated in the thickness direction, the hole portion communicating with the outside and the internal passage, the hole portion being provided so as to perforate a hand hole provided in the protruding portion.

2. The bag-making material according to claim 1, characterized in that the non-sealed portion is arranged at the other portions in which only two layers of the paper material are provided in the thickness direction.

3. The bag-making material according to claim 1, characterized in that the non-sealed portion is arranged at the other portions in which four layers of the paper material are provided in the thickness direction.

4. The bag-making material according to claim 1 or 2, characterized in that at the hole portion, the paper material of the portion other than the portion and the other portions in the protruding portion is provided on one side in the thickness direction, and only the other side in the thickness direction is perforated in the thickness direction. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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