Sheet storage box

Abstract

To provide a storage box for sheets that allows for easy removal of the film material after use.SOLUTION: The seat storage box includes: a body that accommodates multiple stacked sheets; an opening formed on the upper surface of the body that extends in a first direction of the body and has a predetermined width in a second direction orthogonal to the first direction; a film material bonded to the backside of the upper surface, covers the opening and has a slit extending in the first direction; and a bonding part where the film material is bonded and a non-bonding part where a portion of the film material is not bonded, which are provided in an overlapping region where the film material is overlapping outside the opening on the backside of the upper surface.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sheet storage box. [Background technology]

[0002] In conventional sheet storage boxes, sheets such as tissue paper are stored in a box (a so-called carton) made of cardboard or the like, and an outlet for removing the sheets is provided on the top surface of the box. A resin film material covering the outlet is attached to the back surface of the top surface, and the sheets are pulled out through slits formed in the film material (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6043116 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a sheet storage box in which a film material is provided on the underside of the top surface, when separating the box and the film material after use, the film material can be easily peeled off only from the underside of the top surface.

[0005] An object of the present invention is to provide a sheet storage box from which the film material can be easily peeled off after use. [Means for solving the problem]

[0006] A first aspect of the present invention is a sheet storage box comprising: a main body for storing a plurality of stacked sheets; an opening formed on the top surface of the main body, extending in a first direction of the main body, and having a predetermined width in a second direction perpendicular to the first direction; and a film material covering the opening, which is adhered to the back surface of the top surface and has a slit formed therein extending in the first direction, and in an overlapping area on the back surface of the top surface where the film material overlaps outside the opening, an adhesive portion where the film material is adhered and a non-adhesive portion where part of the film material is not adhered are provided.

[0007] In the first aspect, a non-adhesive portion where part of the film material is not adhered is provided in the overlapping area where the film material overlaps outside the opening on the back surface of the top surface of the main body, so that fingers can be inserted between the non-adhesive portion and the film material from the top surface side through the opening. Therefore, in the first aspect, the film material can be peeled off even from the top surface side, making it easy to peel off when separating the main body and the film material after using the sheet storage box.

[0008] A second aspect of the present invention is the sheet storage box according to the first aspect, wherein the non-adhesive portion is provided in a first partial region of the overlapping region that extends in the first direction along the opening and / or a second partial region that extends in the second direction along the opening. In the second aspect, since the non-adhesive portion is provided in the first partial region and / or the second partial region of the overlapping region, the film material can be peeled off from an edge of the opening along the first direction and / or an edge of the opening along the second direction through the non-adhesive portion.

[0009] A third aspect of the present invention is the sheet storage box according to the second aspect, wherein the adhesive portion is provided continuously between the first partial region and the second partial region. In the third aspect, the adhesive portion is provided continuously between the first partial region and the second partial region of the overlapping region, so that even if a non-adhesive portion is provided in the overlapping region, peeling of the film material before or during use can be prevented.

[0010] A fourth aspect of the present invention is a sheet storage box described in any one of the first to third aspects, in which the width in the second direction of a first opening area, which is at least a part of the opening, is wider than the width in the second direction of a second opening area, which is another area of ​​the opening.

[0011] In the fourth aspect, the width of the first opening region, which is at least a portion of the opening, in the second direction is wider than the width of the second opening region, which is the other region of the opening, so that even if the width of the second opening region of the opening is narrowed, fingers can be inserted into the main body through the first opening region of the opening, which is wider than the second opening region. Therefore, in the fourth aspect, it is easy to remove from the opening the topmost sheet of the stacked sheets or a sheet that has fallen into the main body during use.

[0012] In the fourth aspect, the width of the second opening region of the opening can be narrowed, and the size of the film covering the opening can be reduced accordingly. Therefore, in the first aspect, the amount of resin used in the sheet storage box can be reduced, thereby reducing the environmental impact.

[0013] In a fifth aspect of the present invention, in the sheet storage box according to the fourth aspect, the non-adhesive portion is provided adjacent to the first opening region. In the fifth aspect, the non-adhesive portion is provided adjacent to the first opening region of the opening that is wider than the second opening region, which makes it possible to easily insert fingers into the main body while reliably reducing the size of the film material covering the opening.

[0014] In addition, in the fifth aspect, the non-adhesive portion is provided adjacent to the first opening region of the opening that is wider than the second opening region, so that fingers can be inserted between the non-adhesive portion and the film material through the first opening region of the opening that is wider than the second opening region. Therefore, in the fifth aspect, the film material is easier to peel off when separating the main body and the film material after use of the sheet storage box.

[0015] A sixth aspect of the present invention is the sheet storage box according to the fifth aspect, wherein the length in the first direction of the non-adhesive portion adjacent to the first opening region is longer than the length of the first opening region. In the sixth aspect, the length in the first direction of the non-adhesive portion adjacent to the first opening region is longer than the length of the first opening region, making it easier to insert fingers between the non-adhesive portion and the film material through the first opening region of the opening, which is wider than the second opening region.

[0016] A seventh aspect of the present invention is the sheet storage box according to any one of the fourth to sixth aspects, wherein the width of the second opening region in the second direction is 5% to 25% of the width of the top surface in the second direction. In the seventh aspect, the width of the second opening region in the second direction is 5% to 25% of the length of the top surface, so that the size of the film material covering the opening can be reduced while maintaining ease of removal of sheets from a slit in the film material.

[0017] An eighth aspect of the present invention is a sheet storage box described in any one of the fourth to seventh aspects, wherein the width of the first opening region in the second direction is 1.0 to 4.0 times the width of the second opening region in the second direction.

[0018] In the eighth aspect, the width of the first opening region of the opening in the second direction is 1.0 to 4.0 times the width of the second opening region, so that even if the width of the second opening region is narrow in the second direction, the width of the first opening region is sufficiently wide. Therefore, in the eighth aspect, the size of the film material covering the opening can be reliably reduced while facilitating insertion of fingers into the main body.

[0019] A ninth aspect of the present invention is a sheet storage box described in any one of the fourth to eighth aspects, wherein the width in the second direction of the film material adhered to the overlapping area is between two and five times the width in the second direction of the second opening area.

[0020] In the ninth aspect, the width of the film material adhered to the overlapping area in the second direction is between two and five times the width of the second opening area, so that even if a first opening area is provided with an opening that is wider than the second opening area, the entire opening can be covered with the film material.

[0021] Therefore, in the ninth aspect, it is possible to easily insert fingers into the main body while maintaining ease of removal of the sheet from the slit in the film covering the opening. Also, in the ninth aspect, even if the size of the film covering the opening is reduced, dust is less likely to enter the main body through the non-adhesive portion.

[0022] A tenth aspect of the present invention is a sheet storage box described in any one of the fourth to ninth aspects, wherein the width in the second direction of the film material adhered to the overlapping area is 0.4 to 2 times the width in the second direction of the first opening area.

[0023] In the tenth aspect, the width of the film material adhered to the overlapping region in the second direction is 0.4 to 2 times the width of the first opening region of the opening, so that even if the first opening region of the opening is wider than the second opening region, the entire opening can be reliably covered with the film material.

[0024] An eleventh aspect of the present invention is the sheet storage box according to any one of the first to tenth aspects, wherein the area of ​​the adhesive portion is 9% or less of the area of ​​the overlapping region. In the eleventh aspect, since the area of ​​the adhesive portion is 9% or less of the area of ​​the overlapping region, peeling of the film material before or during use can be prevented even if a non-adhesive portion is provided in the overlapping region.

[0025] In the eleventh aspect, since the area of ​​the adhesive portion is 9% or less of the area of ​​the overlapping region, the film material is unlikely to peel off before or during use, and non-adhesive portions can be provided in all areas of the overlapping region where no adhesive portion is provided, so that the film material can be peeled off in the areas where the non-adhesive portions are provided in the overlapping region. [Effects of the Invention]

[0026] According to one aspect of the present invention, it is possible to provide a sheet storage box from which the film material can be easily peeled off after use. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. [Figure 2] FIG. 2 is a diagram showing a stack of sheets stored in a sheet storage box. [Figure 3] FIG. 2 is a view of FIG. 1 as seen from the top side. [Figure 4] 3 is a view of the top surface in FIG. 2 as seen from the back side. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, unless otherwise specified, the same or corresponding components will be designated by the same reference numerals and their description may be omitted. In addition, for ease of understanding, the scale of each component in the drawings may differ from the actual scale.

[0029] Furthermore, in this specification, a three-dimensional Cartesian coordinate system is used in the three axial directions (X direction, Y direction, and Z direction) of the figure, with the longitudinal direction (left-right direction) of the sheet storage box being the X direction, the lateral direction (front-back direction) being the Y direction, and the height direction (up-down direction) being the Z direction.

[0030] In this specification, deviations in each direction are permitted to the extent that they do not impair the functions and effects of the embodiments. Note that perpendicular may include substantially perpendicular.

[0031] Fig. 1 shows a sheet storage box according to an embodiment of the present invention, and Fig. 2 shows a sheet stack stored in the sheet storage box. In this embodiment, sheets S are stored in a main body 10 that constitutes the sheet storage box.

[0032] 1, the sheet storage box 100 according to this embodiment is configured with a main body 10 formed in a substantially rectangular parallelepiped (including a cube) shape. The main body 10 has a top surface 11, a bottom surface 12, a pair of side surfaces 13 and 14, and a pair of end surfaces 15 and 16.

[0033] The top surface 11 and the bottom surface 12 face each other in the height direction (Z direction). The pair of side surfaces 13, 14 face each other in the short direction (Y direction). The pair of end surfaces 15, 16 face each other in the long direction (X direction). The top surface 11 is an example of the upper surface of the sheet storage box of the present invention.

[0034] The material of the main body 10 is not limited, and for example, base paper made primarily of pulp is used. Here, base paper refers to stiff, thick paper that is used as a material for assembling the main body 10. The pulp composition of the base paper is not particularly limited, and for example, the pulp blending ratio can be 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass. In this embodiment, coated cardboard made from virgin pulp, recycled paper pulp, or the like is used as the base paper.

[0035] The basis weight of the base paper is not limited, but from the viewpoint of ensuring sufficient strength to withstand use, the basis weight of the base paper is preferably 200 g / m 2 More than 500g / m 2 and preferably 230 g / m² or more and 450 g / m² or less. 2 or less, more preferably 270 g / m 2 More than 430g / m 2 In this specification, the basis weight is measured in accordance with the provisions of JIS P 8124 (2011).

[0036] The thickness of the base paper is not particularly limited, and can be the paper thickness measured under the environment of JIS P 8111 (1998). For example, when the base paper is coated cardboard, the thickness of the base paper can be 0.1 mm or more and 3 mm or less, preferably 0.3 mm or more and 2 mm or less, and more preferably 0.5 mm or more and 1 mm or less.

[0037] The dimensions of the main body 10 are not limited and can be determined depending on the amount and dimensions of the stored sheets S. For example, the length L1 of the main body 10 in the longitudinal direction (X direction) can be 100 mm or more and 300 mm or less, and preferably 150 mm or more and 280 mm or less.

[0038] The width W1 of the main body 10 in the short side direction (Y direction) can be 100 mm or more and 150 mm or less, and preferably 100 mm or more and 130 mm or less. The height H1 of the main body 10 in the height direction (Z direction) can be 30 mm or more and 150 mm or less, and preferably 40 mm or more and 100 mm or less.

[0039] A plurality of stacked sheets S are housed in the main body 10. In this embodiment, the plurality of sheets S housed in the main body 10 are configured as a sheet stack SL in which a plurality of sheets (a plurality of sheets or a plurality of sets) of sheets S are stacked in a stacking direction (Z direction) (FIGS. 1 and 2).

[0040] The material of the sheet S is not particularly limited, and may be, for example, a sheet of paper, nonwoven fabric, or cloth, preferably a paper sheet (hereinafter referred to as a paper sheet). The pulp composition may be any known composition for paper sheets. The blending ratio of pulp may be, for example, 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass.

[0041] The basis weight of the sheet S is not particularly limited, but in the case of paper, it is 5 g / m 2 More than 80g / m 2 For nonwoven fabrics, 20 g / m 2 More than 100g / m 2 The following is desirable: Basis weight is measured in accordance with the provisions of JIS P 8124 (2011).

[0042] The thickness of the sheet S is not particularly limited, and can be the paper thickness measured under the environment of JIS P 8111 (1998). For example, the thickness of the paper sheet constituting the sheet S can be 50 μm or more and 500 μm or less per ply (or per ply in the case of two plies), and is preferably 60 μm or more and 330 μm or less.

[0043] The form of the sheet S is not particularly limited, and it can be applied to products such as tissue paper, toilet paper, paper towels, kitchen paper, disposable diapers for babies or elderly care, sanitary napkins, etc. Sanitary thin paper such as paper towels and tissue paper also includes sanitary thin paper containing moisturizing ingredients (for example, lotion tissues, etc.). The sheet S can be used for industrial, household, and portable purposes.

[0044] The number of plies of the sheet S can be 1 or more, and is preferably 1 or 2 (two layers stacked). The shape of the sheet S is not particularly limited, and for example, it is preferable that the shape of a 1-ply or 2-ply sheet when folded is rectangular in plan view.

[0045] For example, in the case of tissue paper, the sheet S has top and bottom dimensions of 60 to 130 mm x 150 to 250 mm, and a height of 20 to 110 mm. The number of plies is preferably one or more, and more preferably two.

[0046] The form of the sheet stack SL is not particularly limited, and examples thereof include a sheet stack in which the sheets S are alternately stacked in a folded state (a so-called pop-up type sheet stack SL), a sheet stack in which multiple sheets (or multiple sets of sheets S) are simply stacked, and a sheet stack in which the sheets S are folded. From the viewpoint of pulling out the sheets S one by one or one set at a time, the form of the sheet stack SL is preferably a pop-up type sheet stack SL.

[0047] The dimensions of the sheet stack SL are, for example, in the case of tissue paper, a length in the longitudinal direction (X direction) of 80 mm to 280 mm, a length in the lateral direction (Y direction) of 60 mm to 130 mm, and a height in the stacking direction (Z direction) of 20 mm to 140 mm. Such a sheet stack can be produced, for example, by a rotary or multi-stand interfolder.

[0048] The sheet storage box 100 has an outlet 20 that opens on the top surface 11 of the main body 10. The outlet 20 extends in a first direction (X direction) of the main body 10. The outlet 20 also has a predetermined width W2 in a second direction (Y direction) that is perpendicular to the first direction (X direction). The outlet 20 is an example of an opening formed in the main body of the sheet storage box of the present invention.

[0049] The outlet 20 may be covered with a lid (not shown) before the sheet storage box 100 is used. This lid is connected to the top surface 11 via a perforation (not shown). When the sheet storage box 100 is used, the outlet 20 is formed by tearing open the perforation. Triggers (not shown) formed by semicircular or other notches may be provided on both ends of the lid.

[0050] The shape of the outlet 20 is not particularly limited as long as it allows the sheets S stored in the main body 10 to be pulled out from the top surface 11. In this embodiment, the width W2 in the second direction (Y direction) of a first opening region 21, which is a partial region of the outlet 20, is wider than the width W3 in the second direction (Y direction) of a second opening region 22 of the outlet 20. Here, the first opening region 21 of the outlet 20 is an example of the first opening region of the sheet storage box of the present invention.

[0051] In this embodiment, the outlet 20 is formed at the center C of the top surface 11, and the first opening area 21 forms the central portion of the outlet 20. The position of the first opening area 21 is not limited to the central portion of the outlet 20, but may be an end portion of the outlet 20 or between the central portion and the end portion.

[0052] Furthermore, ends 21A, 21B in the second direction (Y direction) of first opening region 21 of outlet 20 are arc-shaped and convex outward from outlet 20. Furthermore, ends 22A, 22B in the first direction (X direction) of second opening region 22 of outlet 20 are arc-shaped and convex outward from outlet 20. The shapes of ends 21A, 21B of first opening region 21 and ends 22A, 22B of second opening region 22 are not limited and may be shapes other than arc-shaped.

[0053] Furthermore, the length L2 of the outlet 20 in the first direction (X direction) is preferably 55% or more and 90% or less of the length L1 of the top surface 11 in the first direction (X direction), more preferably 65% ​​or more and 85% or less, and even more preferably 75% or more and 80% or less.

[0054] Furthermore, the width W3 in the second direction (Y direction) of the second opening region 22 of the outlet 20 is preferably 5% to 25% of the width in the second direction (Y direction) of the top surface 11 (the width W1 in the short side direction (Y direction) of the main body 10). It is more preferably 7% to 23%, and even more preferably 9% to 21%.

[0055] Furthermore, the width W2 in the second direction (Y direction) of the first opening region 21 of the outlet 20 is preferably 1.0 to 4.0 times the width W3 in the second direction (Y direction) of the second opening region 22, more preferably 1.1 to 3.9 times, and even more preferably 1.2 to 3.8 times.

[0056] The sheet storage box 100 has a film material 30 that covers the outlet 20. The material of the film material 30 is not particularly limited, and for example, resins such as polyethylene and polypropylene can be used. Note that, as the resin, biodegradable materials (biodegradable plastics such as polylactic acid), biomass materials (renewable organic resources derived from living organisms, such as biomass film, excluding fossil resources), etc. can be used.

[0057] The shape of the film material 30 is not particularly limited as long as it is a shape that covers the outlet 20. In this embodiment, a film material that is rectangular in plan view is used.

[0058] The thickness of the film material 30 is not particularly limited, and is, for example, 10 μm or more and 50 μm or less, preferably 15 μm or more and 45 μm or less, and more preferably 20 μm or more and 40 μm or less.

[0059] A slit 31 is formed in the film material 30. The shape of the slit is not particularly limited. In this embodiment, with the film material 30 covering the outlet 20, a linear slit 31 extending in the first direction (X direction) is formed in the film material 30. The sheet S taken out from the outlet 20 is taken out to the outside through the slit 31 in the film material 30.

[0060] 1, 3, and 4, the slit 31 may be formed by a perforation P before the sheet storage box 100 is used. When the sheet storage box 100 is used, the slit 31 is formed by tearing the perforation P. The sheet S taken out from the outlet 20 is taken out through the slit 31 in the film material 30 to the outside.

[0061] The film material 30 is adhered to the back surface 11A of the top surface 11. Specifically, an adhesive portion 40 to which the film material 30 is adhered is provided in an overlapping region BF where the film material 30 overlaps outside the outlet 20 on the back surface 11A of the top surface 11. The outside of the outlet 20 refers to the outside of the periphery 20A of the outlet 20, as shown in FIG. 4 . The film material 30 is adhered to the overlapping region BF via this adhesive portion 40.

[0062] The form of the adhesive portion 40 is not particularly limited. For example, a known adhesive is applied in advance to a portion of the back surface 11A of the top surface 11 that corresponds to the overlapping region BF, and the film material 30 is brought into contact with the portion where the adhesive is applied. This fixes the film material 30 to the portion where the adhesive is applied, and this fixed portion of the film material 30 constitutes the adhesive portion 40.

[0063] Known adhesives include acrylic-vinyl acetate copolymers, ethylene-vinyl acetate polymer aqueous emulsions, and the like.

[0064] By adhering such film material 30 to the back surface 11A of the top surface 11, the sheet S taken out from the outlet 20 passes through the slit 31 in the film material 30 and does not come into contact with the edge of the outlet 20, preventing the sheet S from being torn when taken out. In addition, when a sheet S is taken out, the next sheet S is locked in the slit 31 in the film material 30, making it easy to use the pop-up sheet stack SL.

[0065] In the sheet storage box 100, a non-adhesive portion 50 where a part of the film material 30 is not adhered is provided in the overlapping region BF. In this non-adhesive portion 50, the film material 30 simply overlaps the overlapping region BF and is not adhered.

[0066] There are no particular limitations on the form of non-adhesive portion 50. For example, if a portion on back surface 11A of top surface 11 corresponding to overlapping region BF is prepared in advance to have no adhesive applied thereto, and film material 30 is brought into contact with the portion on which adhesive is applied, film material 30 is not fixed to the portion on which adhesive is not applied, and this unfixed portion of film material 30 constitutes non-adhesive portion 50.

[0067] The non-adhesive portion 50 is provided in the first partial region BF1 and / or the second partial region BF2. The first partial region BF1 is a region of the overlapping region BF that extends along the first direction (X direction). The second partial region BF2 is a region of the overlapping region BF that extends along the second direction (Y direction).

[0068] 4, the non-adhesive portion 50 is made up of a first non-adhesive portion 51 provided in the first partial region BF1 and a second non-adhesive portion 52 provided in the second partial region BF2. In the example shown in FIG. 4, the non-adhesive portion 50 is made up of the first non-adhesive portion 51 and the second non-adhesive portion 52, but is not limited thereto, and the non-adhesive portion 50 may be made up of either the first non-adhesive portion 51 or the second non-adhesive portion 52.

[0069] In addition, in this embodiment, the non-adhesive portion 50 is composed of two first non-adhesive portions 51 and two second non-adhesive portions 52, but the number of non-adhesive portions 50 is not limited, and the non-adhesive portion 50 can be composed of one or more first non-adhesive portions 51 and one or more second non-adhesive portions 52.

[0070] When the non-adhesive portion 50 is provided in the overlapping region BF as in the present embodiment, it is preferable that the adhesive portion 40 is provided continuously in the first partial region BF1 and the second partial region BF2. As shown in Fig. 4, the adhesive portion 40 is composed of four L-shaped adhesive portions 60, each of which is formed by connecting a first adhesive portion 41 provided in the first partial region BF1 and a second adhesive portion 42 provided in the second partial region BF2.

[0071] 4, the adhesive portion 40 is made up of four L-shaped adhesive portions 60 provided at the four corners of the overlapping region BF. That is, in this example, the non-adhesive portions 50 are not provided at the four corners of the overlapping region BF. Alternatively, the adhesive portion 40 may be made up of three or less L-shaped adhesive portions 60 provided at any of the four corners of the overlapping region BF.

[0072] However, even if a non-adhesive portion 50 is provided in the overlapping region BF, it is preferable that the non-adhesive portion 50 is not provided at the four corners of the overlapping region BF, in order to ensure that the film material is sufficiently adhesive so that it does not peel off from the main body when the sheet storage box is in use.

[0073] In the present embodiment, when the width W2 of the first opening region 21 of the outlet 20 in the second direction (Y direction) is wider than the width W3 of the second opening region 22 of the outlet 20 in the second direction (Y direction), it is preferable that the non-adhesive portion 50 be provided adjacent to the first opening region 21. In the present embodiment, the first non-adhesive portion 51 provided in the first partial region BF1 is provided adjacent to the first opening region 21, which is wider in the second direction (Y direction) than the second opening region 22.

[0074] Furthermore, as shown in FIG. 4, it is preferable that the length L4 in the first direction (X direction) of the non-adhesive portion 50 (first non-adhesive portion 51) adjacent to the first opening region 21 of the outlet 20 is longer than the length L3 in the first direction (X direction) of the first opening region 21 of the outlet 20.

[0075] Furthermore, as shown in Figure 4, the width W4 in the second direction (Y direction) of the film material 30 adhered to the overlapping region BF is preferably 2 to 5 times the width W3 in the second direction (Y direction) of the second opening region 22 of the outlet 20, more preferably 2.1 to 4.9 times, and even more preferably 2.2 to 4.8 times.

[0076] Furthermore, as shown in Figure 4, the width W4 in the second direction (Y direction) of the film material 30 adhered to the overlapping region BF is preferably 0.4 to 2 times the width W2 in the second direction (Y direction) of the first opening region 21 of the outlet 20, more preferably 0.5 to 1.9 times, and even more preferably 0.6 to 1.8 times.

[0077] Furthermore, the area of ​​the adhesive portion 40 is preferably 9% or less of the area of ​​the overlapping region BF, more preferably 8.5% or less, and even more preferably 8% or less. Here, the area of ​​the adhesive portion 40 and the area of ​​the overlapping region BF are both areas in a plan view of the sheet storage box 100 as seen from the top surface 11 side.

[0078] Although there is no particular lower limit to the ratio of the area of ​​the adhesive portion 40 to the area of ​​the overlapping region BF, it is preferable that it be 0.5% or more in order to ensure sufficient adhesion so that the film material does not peel off from the main body when the sheet storage box is in use.

[0079] The effects of this embodiment will be described below. In the sheet storage box 100 of this embodiment, a non-adhesive portion 50 where a part of the film material 30 is not adhered is provided in the overlapping region BF where the film material 30 overlaps outside the outlet 20 on the back surface 11A of the top surface 11 of the main body 10.

[0080] As a result, in this embodiment, a finger (not shown) can be inserted between the non-adhesive portion 50 and the film material 30 from the top surface 11 side through the outlet 20. Therefore, in this embodiment, the film material 30 can be peeled off even from the top surface 11 side, making it easy to peel off the film material 30 when separating the main body 10 and the film material 30 after use of the sheet storage box 100.

[0081] In this embodiment, the non-adhesive portion 50 is provided in the first partial region BF1 and / or the second partial region BF2 of the overlapping region BF, so that the film material 30 can be peeled off from the edge along the first direction (X direction) and / or the edge along the second direction (Y direction) of the outlet 20 (end 21A and / or end 21B of the first opening region 21) through the non-adhesive portion 50 (first non-adhesive portion 51 and / or second non-adhesive portion 52).

[0082] In addition, in this embodiment, an adhesive portion 40 is provided continuously between the first partial region BF1 and the second partial region BF2 of the overlapping region BF, so that even if a non-adhesive portion 50 is provided in the overlapping region BF, peeling of the film material 30 can be prevented before or during use of the sheet storage box 100.

[0083] In this embodiment, the width W2 of the first opening region 21 of the outlet 20 in the second direction (Y direction) is wider than the width W3 of the second opening region 22, so that even if the width W3 of the second opening region 22 of the outlet 20 is narrowed, fingers can be inserted into the main body 10 from the first opening region 21 of the outlet 20, which is wider than the second opening region 22 of the outlet 20. Therefore, in this embodiment, it is easy to remove from the outlet 20 the uppermost sheet S of the stacked multiple sheets S (sheet stack SL) or a sheet S that has fallen into the main body 10 during use.

[0084] In addition, in this embodiment, the width W3 of the second opening region 22 of the outlet 20 can be narrowed, and therefore the size of the film material 30 covering the outlet 20 can be reduced accordingly. Therefore, in this embodiment, the amount of resin used in the sheet storage box 100 can be reduced, thereby reducing the environmental impact.

[0085] In this embodiment, a non-adhesive portion 50 is provided adjacent to the first opening region 21 of the outlet 20, which is wider than the second opening region 22, thereby making it easier to insert fingers into the main body 10 while ensuring that the size of the film material 30 covering the outlet 20 is reduced.

[0086] Furthermore, in this embodiment, the non-adhesive portion 50 is provided adjacent to the first opening region 21 of the outlet 20, which is wider than the second opening region 22, so that fingers can be inserted between the non-adhesive portion 50 and the film material 30 through the first opening region 21 of the outlet 20, which is wider than the second opening region 22. Therefore, in this embodiment, the film material 30 is easier to peel off when separating the main body 10 and the film material 30 after use of the sheet storage box 100.

[0087] In this embodiment, in the first direction (X direction), the length L4 of the non-adhesive portion 50 (first non-adhesive portion 51) adjacent to the first opening region 21 is longer than the length L3 of the first opening region 21, making it easier to insert fingers between the non-adhesive portion 50 (first non-adhesive portion 51) and the film material 30 through the first opening region 21 of the outlet 20, which is wider than the second opening region 22.

[0088] In this embodiment, the width W3 of the second opening area 22 in the second direction (Y direction) is 5% or more and 25% or less of the width W1 of the top surface 11, so that the size of the film material 30 can be reduced while maintaining the ease of removing the sheet S from the slit 31 in the film material 30 covering the removal opening 20.

[0089] In this embodiment, the width W2 of the first opening region 21 of the outlet 20 in the second direction (Y direction) is 1.0 to 4.0 times the width W3 of the second opening region 22, so that even if the width W3 of the second opening region 22 in the second direction (Y direction) is narrow, the width W2 of the first opening region 21 of the outlet 20 is sufficiently wide. Therefore, in this embodiment, it is possible to easily insert fingers into the main body 10 while reliably reducing the size of the film material 30 covering the outlet 20.

[0090] In this embodiment, the width W4 of the film material 30 adhered to the overlapping region BF in the second direction (Y direction) is between two and five times the width W3 of the second opening region 22, so that the entire outlet 20 can be covered with the film material 30 even if the first opening region 21 of the outlet 20 is wider than the second opening region 22.

[0091] Therefore, in this embodiment, it is possible to easily insert fingers into the main body 10 while maintaining the ease of removing the sheet S from the slit 31 in the film material 30 covering the outlet 20. Furthermore, in this embodiment, even if the size of the film material 30 covering the outlet 20 is reduced, dust is less likely to enter the main body 10 through the non-adhesive portion 50.

[0092] In this embodiment, the width W4 of the film material 30 adhered to the overlapping region BF in the second direction (Y direction) is 0.4 to 2 times the width W2 of the first opening region 21 of the outlet 20, so that even if the first opening region 21 of the outlet 20 is wider than the second opening region 22, the entire outlet 20 can be reliably covered with the film material 30.

[0093] In this embodiment, the area of ​​the adhesive portion 40 is 9% or less of the area of ​​the overlapping region BF, so that even if a non-adhesive portion 50 is provided in the overlapping region BF, peeling of the film material 30 can be prevented before or during use of the sheet storage box 100.

[0094] Furthermore, in this embodiment, since the area of ​​the adhesive portion 40 is 9% or less of the area of ​​the overlapping region BF, the film material 30 is unlikely to peel off before or during use of the sheet storage box 100, and therefore the non-adhesive portion 50 can be provided in all areas of the overlapping region BF where the adhesive portion 40 is not provided. Therefore, the film material 30 can be peeled off in the areas of the overlapping region BF where the non-adhesive portion 50 is provided. [Example]

[0095] The present invention will be described in more detail below with reference to examples. The examples and comparative examples were evaluated by the following tests.

[0096] <Sheet storage box (test specimen)> The test specimen is made of base paper with a basis weight of 310 g / m 2 A main body 10 was fabricated from a matt-coated cardboard with dimensions of approximately 44 mm in height, approximately 229 mm in length in the longitudinal direction (X direction), and approximately 110 mm in width in the transverse direction (Y direction). As shown in Figures 1 and 3, an outlet 20 was formed at the center C of the top surface 11 of the main body 10. As shown in Figure 4, a film material 30 made of low-density polyethylene (LDPE) was adhered to the back surface 11A of the top surface 11 to cover the outlet 20. A linear slit 31 extending in the longitudinal direction (X direction) of the main body 10 was formed in the film material 30 while it was adhered to the back surface 11A of the top surface 11.

[0097] <Sheet (tissue paper)> A sheet stack SL in which multiple sheets S are folded alternately and stacked so that they can be pulled out one by one in a pop-up style is tissue paper (basis weight: 10.7 g / m 2 The following was used: paper thickness: 110 μm, number of plies: 2 plies, number of sets: 150 sets (300 sheets), dimensions: bulk (height) approximately 40 mm, width in CD direction: approximately 197 mm, width in MD direction: approximately 207 mm. The sheet stack SL was stored in the main body 10 so that the stacking direction was the height direction (Z direction) of the sheet storage box 100, as shown in Figures 1 and 2.

[0098] [(1) Film material creases and peels off when inserting the sheet] When inserting the sheet laminate SL into the assembled main body 10, it was confirmed whether or not the film material 30 would wrinkle or peel off. In this test, the specified number of sheet laminates SL (150 sets) were inserted by hand, and then the sheet laminate SL was again removed from the insertion opening, the main body 10 was unfolded, and the back side of the top surface of the main body 10 was turned upward, and the film material 30 was evaluated for wrinkles or peeling according to the following criteria. This test was performed five times by one subject for each of the example and the comparative example.

[0099] [Evaluation criteria] ○: No wrinkles or peeling △: Wrinkled, no peeling ×: Peeling

[0100] (2) Ease of inserting fingers into the outlet When taking out the sheet S from the outlet 20 of the main body 10, the ease of inserting a finger into the outlet 20 was confirmed. In this test, evaluation was performed according to the following criteria. If there was even one x, the evaluation was marked as x, and if there were no x, the evaluation was performed using the more of o and △. This test was performed once for each of the example and the comparative example by 10 subjects.

[0101] [Evaluation criteria] ○: Easy to insert △: A little difficult to insert ×: Difficult to insert, fingers cannot fit

[0102] [(3) Sheet removal] The ease of taking out the sheet S from the take-out opening 20 was evaluated according to the following criteria. Note that the evaluation was given as ○ when all were ○, as △ when there was at least one △, and as × when there was at least one ×. This test was carried out five times by one subject for each of the example and the comparative example.

[0103] [Evaluation criteria] The first pair ○: It was removed without any problems △: A little difficult to remove, but it was possible ×: Cannot be removed or torn From the first pair to the last pair ○: The sheet was removed to the end without falling or tearing. △: The seat fell or tore once during the ride. ×: The sheet fell or broke more than twice during the test. - Check whether the film material 30 has peeled off after removing the last set (unfold the main body and check from the back) ○: No peeling △: Peeling of 1 to 5 mm occurs ×: Peeling of 6 mm or more occurs

[0104] (4) Ease of peeling off the film from the outlet side After using the sheet storage box, the ease of peeling was confirmed by inserting a finger from the outlet 20 side to the first non-adhesive portion 51 side to peel off the film material 30. In this test, evaluation was performed according to the following criteria. If there was even one x, the evaluation was recorded as x, and if there were no x, the evaluation was performed using either ◯ or △, whichever was more. This test was performed once for each of the example and comparative example by 10 subjects.

[0105] [Evaluation criteria] ○: Easy to peel off △: A little difficult to peel off, but can be peeled off ×: Cannot be peeled off

[0106] (5) Ease of peeling off the film from the back of the top panel After using the sheet storage box, the main body 10 was unfolded, and the ease of peeling the film material 30 from the back side of the top surface of the main body 10 was confirmed. In this test, evaluation was made according to the following criteria. If there was even one ×, the evaluation was made as ×, and if there was no ×, the evaluation was made as whichever was more ○ or △. This test was performed once for each of the example and the comparative example by 10 subjects.

[0107] [Evaluation criteria] ○: Easy to peel off △: A little difficult to peel off, but can be peeled off ×: Cannot be peeled off

[0108] [(6) Amount of film material used] The percentage of the amount of film material that could be reduced compared to the current product (Comparative Example 1) was confirmed.

[0109] Examples and comparative examples will be described below.

[0110] [Example 1] The outlet 20 is provided with a finger insertion section (first opening region 21 of the outlet 20 which is wider than the second opening region 22), the length of the longitudinal direction (X direction) of the outlet 20 is 178 mm, the length (width) of the short side (Y direction) of the outlet 20 is 20 mm at the narrowest part (second opening region 22) and 37 mm at the widest part (first opening region 21), the length of the longitudinal direction (X direction) of the finger insertion section (central part of the outlet 20) is 46 mm, the total length of the adhesive part in the longitudinal direction (X direction) of the film material 30 (one side in the longitudinal direction (X direction) of the overlapping region BF) is 197 mm in a straight line and 3 mm in width, and the total length of the adhesive part in the short side (Y direction) of the film material 30 (one side in the short direction (Y direction) of the overlapping region BF) is 33 mm in length. mm, width 4 mm, dimensions of film material 30 in the longitudinal direction (X direction) 207 mm, width 46 mm, thickness of film material 30 35 μm, length of slit 31 in film material 30 168 mm, length (one side) of non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of film material 30 47 mm, length (one side) of non-adhesive portion 50 (second non-adhesive portion 52) in the lateral direction (Y direction) of film material 30 10 mm, number of non-adhesive portions 50 (first non-adhesive portions 51) in the longitudinal direction (X direction) one per side (two on both sides), number of non-adhesive portions 50 (second non-adhesive portions 52) in the lateral direction (Y direction) one per side (two on both sides), area of ​​adhesive portion 748 mm 2 , the area of ​​the film material 30 is 9522 mm 2 A test specimen was prepared under the condition that the area ratio of adhesive to film material (30%) was 7.9%. This test specimen was evaluated for (1) warping and peeling of the film material when inserting a sheet, (2) ease of inserting a finger into the outlet, (3) ease of sheet removal, (4) ease of peeling of the film material from the outlet side, (5) ease of peeling of the film material from the back of the top surface, and (6) amount of film material used. The results are shown in Table 1.

[0111] [Example 2] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 100 mm, and the area of ​​the adhesive portion is 532 mm 2 The area ratio of the adhesive to the film material 30 was set to 5.6%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 1.

[0112] [Example 3] The length of the finger insertion part (the center of the outlet 20) in the longitudinal direction (X direction) is 90 mm, and the area of ​​the adhesive part is 528 mm 2 The area ratio of the adhesive to the film material 30 was set to 5.5%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 2. The results are shown in Table 1.

[0113] [Example 4] The length (width) of the outlet 20 in the short direction (Y direction) is 50 mm at the widest part (first opening region 21), the length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 55 mm, and the area of ​​the adhesive portion is 712 mm 2 The area ratio of the adhesive to the film material 30 was set to 7.5%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 1.

[0114] [Example 5] The length (width) of the outlet 20 in the short direction (Y direction) is 70 mm at the widest part (first opening region 21), the length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 57 mm, and the area of ​​the adhesive portion is 704 mm 2 The area ratio of the adhesive to the film material 30 was set to 7.4%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 1.

[0115] [Example 6] The length (width) of outlet 20 in the short direction (Y direction) was 50 mm at its widest part (first opening region 21). Except for this, a test specimen was prepared and evaluated under the same conditions as in Example 2. The results are shown in Table 1.

[0116] [Example 7] The length of the finger insertion portion (between the end 22B and the center of the outlet 20) in the longitudinal direction (X direction) was 46 mm, and the length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 was 47 mm. Except for this, a test specimen was prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 2.

[0117] [Example 8] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 140 mm, and the area of ​​the adhesive portion is 372 mm 2 The area ratio of the adhesive to the film material 30 was set to 3.9%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 2.

[0118] [Example 9] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 180 mm, and the area of ​​the adhesive portion is 212 mm 2 The area ratio of the adhesive to the film material 30 was set to 2.2%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 2.

[0119] [Example 10] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 174 mm, the length (one side) of the non-adhesive portion 50 (second non-adhesive portion 52) in the lateral direction (Y direction) of the film material 30 is 18.6 mm, the number of non-adhesive portions 50 (first non-adhesive portions 51) in the longitudinal direction (X direction) is 3 per side (6 on both sides), and the area of ​​the adhesive portion is 190.8 mm 2 The area ratio of the adhesive to the film material 30 was set to 2.0%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 2.

[0120] [Example 11] The length (width) of outlet 20 in the short direction (Y direction) was 25 mm at its widest part (first opening region 21), and the length of the finger insertion part (center of outlet 20) in the longitudinal direction (X direction) was 25 mm. Except for this, a test specimen was produced and evaluated under the same conditions as in Example 1. The results are shown in Table 2.

[0121] [Example 12] The length (width) of the outlet 20 in the short direction (Y direction) was set to 10 mm at the narrow portion (second opening region 22). Except for this, a test specimen was produced and evaluated under the same conditions as in Example 1. The results are shown in Table 2.

[0122] [Example 13] The length of the outlet 20 in the longitudinal direction (X direction) is 176 mm, the length (width) of the outlet 20 in the lateral direction (Y direction) is 23 mm at the narrowest part (second opening region 22) and 45 mm at the widest part (first opening region 21), the length of the finger insertion part (part corresponding to the center of the outlet 20) in the longitudinal direction (X direction) is 45 mm, the total length of the adhesive part in the longitudinal direction (X direction) of the film material 30 (one side of the overlapping region BF in the longitudinal direction (X direction)) is 196 mm in a straight line, the width is 2 mm, and the lateral direction of the film material 30 is 196 mm. The total length of the adhesive portion (one side in the short direction (Y direction) of the overlapping region BF) in the (Y direction) is 57 mm in length and 7 mm in width (5 mm in part), the dimensions of the film material 30 are 206 mm in the longitudinal direction (X direction) and 60 mm in the short direction (Y direction), the length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the long direction (X direction) of the film material 30 is 74 mm, the length (one side) of the non-adhesive portion 50 (second non-adhesive portion 52) in the short direction (Y direction) of the film material 30 is 20 mm, and the area of ​​the adhesive portion is 740 mm 2 , the area of ​​the film material 30 is 12360mm 2 The area ratio of the adhesive to the film material 30 was set to 6.0%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 3.

[0123] [Example 14] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 181 mm, the length (one side) of the non-adhesive portion 50 (second non-adhesive portion 52) in the lateral direction (Y direction) of the film material 30 is 20 mm, and the area of ​​the adhesive portion is 104 mm 2 , the area of ​​the film material 30 is 9522 mm 2 The area ratio of the adhesive to the film material 30 was set to 1.1%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 3.

[0124] [Example 15] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 187 mm, the length (one side) of the non-adhesive portion 50 (second non-adhesive portion 52) in the lateral direction (Y direction) of the film material 30 is 25 mm, and the area of ​​the adhesive portion is 64 mm 2 The area ratio of the adhesive to the film material 30 was set to 0.7%. Except for this, test specimens were prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 3.

[0125] [Example 16] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 was set to 45 mm. Except for this, a test specimen was prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 3.

[0126] [Example 17] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 was set to 46 mm. Except for this, a test specimen was prepared and evaluated under the same conditions as in Example 1. The results are shown in Table 3.

[0127] [Comparative Example 1] The length (one side) of the non-adhesive portion 50 (first non-adhesive portion 51) in the longitudinal direction (X direction) of the film material 30 is 0 mm, the length (one side) of the non-adhesive portion 50 (second non-adhesive portion 52) in the lateral direction (Y direction) of the film material 30 is 0 mm, the number of non-adhesive portions 50 (first non-adhesive portions 51) in the longitudinal direction (X direction) is 0 per side, the number of non-adhesive portions 50 (second non-adhesive portions 52) in the lateral direction (Y direction) is 0 per side, and the area of ​​the adhesive portion is 1420 mm 2 , the area of ​​the film material 30 is 14008mm 2 The area ratio of the adhesive to the film material 30 was set to 10.1%. Except for this, a test specimen was prepared and evaluated under the same conditions as in Example 13. The results are shown in Table 4.

[0128] Comparative Example 2 The outlet 20 did not have a finger insertion area (first opening area 21 of the outlet 20 which was wider than the second opening area 22), the length (width) of the outlet 20 in the short direction (Y direction) was all 20 mm, and no finger insertion area (central part of the outlet 20) was provided. Except for this, a test specimen was produced and evaluated under the same conditions as in Example 1. The results are shown in Table 4.

[0129] Comparative Example 3 The length (width) of the outlet 20 in the short side direction (Y direction) was all set to 10 mm. Except for this, test specimens were produced and evaluated under the same conditions as in Comparative Example 2. The results are shown in Table 4.

[0130] [Table 1]

[0131] [Table 2]

[0132] [Table 3]

[0133] [Table 4]

[0134] As can be seen from Tables 1 to 3, in the sheet storage boxes 100 in Examples 1 to 17 in which a finger insertion section (first opening area 21 of the outlet 20 which is wider than the second opening area 22) is provided in the outlet 20 and the length of the finger insertion section (central part of the outlet 20) in the longitudinal direction (X direction) is 45 mm or more, all of the above evaluations (1) to (6) were good.

[0135] On the other hand, as can be seen from Table 4, in the sheet storage box 100 of Comparative Example 1 in which the non-adhesive portion 50 was not provided, the film material was difficult to peel off from the outlet side, and the amount of film material used could not be reduced.

[0136] Furthermore, as can be seen from Table 4, in the sheet storage boxes 100 of Comparative Examples 2 and 3, which did not have a finger insertion section, it was difficult to insert fingers into the outlet, and in Comparative Example 3, it was even more difficult to remove the sheets, and the film material was difficult to peel off from the outlet side.

[0137] Although the embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments, and various modifications and changes are possible within the scope of the invention described in the claims. [Explanation of symbols]

[0138] 100 Sheet Storage Box S seat SL Sheet laminate 10 Main Unit 11 Top 11A Back side C center 12 Bottom 13, 14 Side 15, 16 Wife face 20 Outlet 20A Periphery 21 1st opening area 21A end 21B End 22 Second opening area 22A end 22B End 30 Film material 31 Slit P perforation BF overlap area 40 Adhesive part 41 1st adhesive part 42 2nd adhesive part 50 Non-adhesive area 51 1st non-bonded part 52 2nd non-bonded part 60 L-shaped adhesive

Claims

1. a main body that accommodates a plurality of stacked sheets; an opening formed on an upper surface of the main body, extending in a first direction of the main body and having a predetermined width in a second direction perpendicular to the first direction; a film material that covers the opening and is adhered to a rear surface of the upper surface and has a slit formed therein that extends in the first direction; A sheet storage box is provided with an adhesive portion where the film material is adhered and a non-adhesive portion where part of the film material is not adhered in an overlapping area where the film material overlaps outside the opening on the back surface of the top surface.

2. 2. The sheet storage box according to claim 1, wherein the non-adhesive portion is provided in a first partial region of the overlapping region that extends in the first direction along the opening and / or a second partial region that extends in the second direction along the opening.

3. The sheet storage box according to claim 2 , wherein the adhesive portion is provided continuously between the first partial region and the second partial region.

4. The sheet storage box according to claim 1 , wherein a width in the second direction of a first opening region that is at least a part of the opening is wider than a width in the second direction of a second opening region that is the other region of the opening.

5. The sheet storage box according to claim 4 , wherein the non-adhesive portion is provided adjacent to the first opening region.

6. The sheet storage box according to claim 5 , wherein a length in the first direction of the non-adhesive portion adjacent to the first opening region is longer than a length in the first direction of the first opening region.

7. The sheet storage box according to claim 4 , wherein the width of the second opening region in the second direction is 5% to 25% of the width of the top surface in the second direction.

8. The sheet storage box according to claim 4 , wherein the width of the first opening region in the second direction is 1.0 to 4.0 times the width of the second opening region in the second direction.

9. The sheet storage box according to claim 4 , wherein the width in the second direction of the film material adhered to the overlapping region is between two and five times the width in the second direction of the second opening region.

10. The sheet storage box according to claim 4 , wherein the width in the second direction of the film material adhered to the overlapping region is 0.4 to 2 times the width in the second direction of the first opening region.

11. The sheet storage box according to claim 1 , wherein the area of ​​the adhesive portion is 9% or less of the area of ​​the overlapping region.

Images