Sheet packaging

Abstract

To provide a sheet package from which a sheet can be easily taken out.SOLUTION: A sheet package has a packaging bag for accommodating a plurality of stacked sheets, a take-out port that opens to a top surface of the packaging bag when a part of the top surface is cleaved, and a lid that is formed by a part of the cleaved top surface and closes the take-out port so that it can be resealed. A part of an end edge of the lid is connected to the top surface, and the lid is provided with a processed part that delays the closing operation of the lid.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a sheet packaging body. [Background technology]

[0002] In sheet packages such as pocket tissues, a sheet such as tissue paper is contained in a packaging bag made of a resin film. A straight line of perforations is formed on the top surface of the packaging bag, and an outlet is formed on the top surface of the packaging bag by tearing the perforations. The sheet can be pulled out by inserting a fingertip into the packaging bag through the outlet and pinching the topmost sheet (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-47270 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a sheet package from which the sheets can be easily removed. [Means for solving the problem]

[0005] A first aspect of the present invention is a sheet packaging body comprising a packaging bag for containing multiple stacked sheets, an outlet opening that opens into a top surface of the packaging bag when a portion of the top surface is torn open, and a lid body formed from the torn portion of the top surface and closing the outlet opening in a resealable manner, the lid body having a portion of its edge connected to the top surface and having a processed portion that delays the closing action of the lid body.

[0006] In this specification, "opening the top surface when a part of the top surface of the packaging bag is torn" means that an access port is formed by a tearing score line formed on the top surface, and when this tearing score line is torn, an opening is formed on the top surface of the packaging bag, and this opening becomes the access port. "Closing the access port in a resealable manner" means that a lid covers the open access port. "Part of the edge is connected to the top surface" means that the lid is fixed to the top surface via part of the edge even after the access port is opened.

[0007] Delaying the closing action of the lid means slowing down the movement of the lid to return to its original state to close the outlet when the lid is deployed in the direction to open the outlet. The movement of the lid to return to its original state is considered to be the movement of the lid caused by elastic stress (hereinafter referred to as stress) generated inside the lid due to an external force applied to the lid. One of the reasons for the delay in the closing action of the lid is considered to be that the elastic stress distribution generated inside the lid is discontinuously or partially alleviated by the processed portion (hereinafter referred to as the stress of the lid being alleviated).

[0008] In the first aspect, the lid that closes the outlet so as to be resealable has a processed portion that delays the closing action of the lid, so that when the lid is deployed in the direction to open the outlet, the movement of the lid that attempts to return to its original state in which the deployed lid closes the outlet can be slowed down. This makes it possible to maintain the deployed lid away from the outlet when the sheet is taken out from the outlet.

[0009] With this configuration, in the first aspect, even if a lid covering the outlet is provided, the lid is unlikely to get in the way when removing the sheet from the outlet, and therefore, according to the first aspect, it is possible to provide a sheet package that allows easy removal of the sheet.

[0010] In the first aspect, a part of the torn top surface forms a lid that closes the outlet so that it can be resealed, making it difficult for dirt, dust, and the like (hereinafter, referred to as dust) to enter the packaging bag through the closed outlet. This allows the sheet packaging body to be used hygienically in the first aspect.

[0011] Furthermore, in the first aspect, a part of the torn top surface becomes a lid that closes the outlet port so that it can be resealed, and because a part of the edge of the lid is connected to the top surface, the lid that constitutes the torn part of the top surface becomes a small piece connected to the top surface without being separated from the packaging bag. Therefore, in the first aspect, no fragments (such as pieces separated from the packaging bag) are generated when the outlet port is opened.

[0012] A second aspect of the present invention is a sheet packaging body in which a pillow packaging seal portion is formed on at least one end of both ends in a first direction of the top surface, the removal opening is formed on the at least one end side in the first direction, the lid body has an edge on the seal portion side connected to the top surface, and the processed portion is provided on the seal portion side of the lid body.

[0013] In this specification, the first direction refers to a direction along a predetermined direction on the top surface of the packaging bag. Pillow packaging refers to a packaging form in which both ends or either one end of a tubular film folded in three or a tubular film folded in a gusset shape is sealed.

[0014] In the second aspect, the processed portion of the lid is provided on the seal side of the lid, so that the vicinity of the edge of the lid connected to the top surface becomes the processed portion of the lid. The vicinity of the edge of the seal side of the lid is a portion where stress is likely to occur when the lid is unfolded to open the outlet, so by providing the processed portion of the lid in this portion, the stress on the lid is likely to be alleviated. Therefore, according to the second aspect, the function of delaying the closing operation of the lid can be improved.

[0015] In the second aspect, the outlet is formed on at least one end of the top surface in the first direction, and therefore the outlet is not formed on the entire top surface. Therefore, the shape of the packaging bag is easily maintained even after the outlet is opened, and the state of the sheets contained in the packaging bag is not easily disturbed. Therefore, according to the second aspect, the sheet packaging body can be used neatly to the end.

[0016] In the second aspect, the outlet is formed on at least one end of the top surface in the first direction, so that the outlet can be opened on the sealed portion side of the top surface. This allows the sheet to be pulled out toward the top surface when the sheet is taken out from the outlet, and also pulled out toward the sealed portion along the first direction. Therefore, according to the second aspect, it is possible to provide a sheet packaging body that is easy to use.

[0017] A third aspect of the present invention is a sheet packaging body, in which the processed portion extends in a second direction intersecting with the first direction of the top surface. In this specification, the second direction intersecting with the first direction of the top surface refers to a direction perpendicular to the first direction on the top surface or a direction along a direction intersecting a brace.

[0018] In the third aspect, the processed portion of the lid extends in a second direction intersecting with the first direction of the top surface, so that the processed portion can be provided along the edge of the lid connected to the top surface. This makes it easier to relieve the stress on the lid in the third aspect, and further enhances the function of delaying the closing action of the lid.

[0019] A fourth aspect of the present invention is a sheet packaging body in which the length of the processed portion in the second direction is the same as the width of the outlet in the second direction. In the fourth aspect, by making the length of the processed portion of the lid body in the second direction the same as the width of the outlet in the second direction, the processed portion can be provided over the entire vicinity of the edge of the lid body on the seal side (a portion where stress is likely to occur when the lid body is unfolded to open the outlet). Therefore, according to the fourth aspect, the stress of the lid body is further easily alleviated, and the function of delaying the closing operation of the lid body can be further improved.

[0020] A fifth aspect of the present invention is a sheet packaging body in which the length of the processed portion in the second direction is shorter than the width of the lid body in the second direction. In the fifth aspect, by making the length of the processed portion of the lid body in the second direction shorter than the width of the lid body in the second direction, it is possible to reduce the area in which the processed portion is formed in the lid body without significantly reducing the stress relaxation function of the lid body. Therefore, according to the fifth aspect, it is possible to adjust the time for delaying the closing operation of the lid body while imparting the function of delaying the closing operation of the lid body.

[0021] A sixth aspect of the present invention is a sheet packaging body in which the processed portion is formed by a perforation. In this specification, a perforation refers to an alternating arrangement of cuts and ties (uncut portions between two cuts). In the sixth aspect, the processed portion of the lid body is formed by such perforations, which makes it easier to form the processed portion of the lid body. Also, in the sixth aspect, the stress on the lid body is relieved by the portion of the lid body where the perforations are provided, so that a function of delaying the closing action of the lid body can be imparted.

[0022] A seventh aspect of the present invention is a sheet packaging body in which the processed part is formed by pressing. In this specification, pressing refers to pressing a mold or the like against the processed part to deform the part. In the seventh aspect, the processed part of the lid is formed by such pressing, so that the work of forming the processed part of the lid is easy. Also, in the seventh aspect, the stress of the lid is relieved by the part of the lid that is pressed and deformed, so that a function of delaying the closing action of the lid can be imparted.

[0023] An eighth aspect of the present invention is a sheet packaging body in which the processed part is formed by heating. In this specification, heating refers to pressing a heated mold against the processed part to cause thermal deformation. In the eighth aspect, the processed part of the lid body is formed by such heating, so that the work of forming the processed part of the lid body is easy. Also, in the eighth aspect, the thermally deformed part of the lid body relieves the stress of the lid body, so that the function of delaying the closing action of the lid body can be imparted.

[0024] A ninth aspect of the present invention is a sheet packaging body in which a pillow packaging seal portion is formed at each end portion in a first direction of the top surface, the removal opening is formed on at least one end side of both ends of the top surface in a second direction intersecting the first direction, the lid body has an edge on the at least one end side in the second direction connected to the top surface, and the processed portion is provided on the at least one edge side of the lid body.

[0025] In the ninth aspect, the processed portion of the lid is provided on at least one end side in the second direction, so that the processed portion of the lid can be provided near the edge of the lid connected to the top surface (a portion where stress is likely to occur when the lid is unfolded to open the outlet). Therefore, according to the ninth aspect, stress on the lid is easily alleviated, and the function of delaying the closing action of the lid can be improved.

[0026] In the ninth aspect, the outlet is formed on at least one end of the top surface in the second direction, and therefore the outlet is not formed on the entire top surface. Therefore, the shape of the packaging bag is easily maintained even after the outlet is opened, and the state of the sheets contained in the packaging bag is not easily disturbed. Therefore, according to the ninth aspect, the sheet packaging body can be used neatly to the end.

[0027] Furthermore, in the ninth aspect, by forming the outlet on at least one end side in the second direction of the top surface, the outlet can be opened on at least one end side in the second direction of the top surface. This allows the sheet to be pulled out toward the top surface when the sheet is taken out from the outlet, and also allows the sheet to be pulled out along the second direction to at least one end side in the second direction. Therefore, according to the ninth aspect, it is possible to provide a sheet packaging body that is easy to use.

[0028] A tenth aspect of the present invention is a sheet packaging body in which a pillow packaging seal portion is formed at each end of the top surface in a first direction, the removal opening is formed in the center of the top surface, and the lid body is connected to the top surface at least one edge in a second direction intersecting the first direction, and the processed portion is provided on the at least one edge side of the lid body.

[0029] In this specification, the central part of the top surface refers to a region that includes the center (centroid) of the top surface and has an area of ​​about one-tenth to one-fifth of the entire top surface.

[0030] In the tenth aspect, the processed portion of the lid is provided on at least one end side in the second direction, so that the processed portion of the lid can be provided near the edge of the lid connected to the top surface (a portion where stress is likely to occur when the lid is unfolded to open the outlet). Therefore, according to the tenth aspect, stress on the lid is easily alleviated, and the function of delaying the closing action of the lid can be improved.

[0031] In the tenth aspect, the outlet is formed in the center of the top surface, and the outlet is not formed on the entire top surface. Therefore, the shape of the packaging bag is easily maintained even after the outlet is opened, and the state of the sheets contained in the packaging bag is not easily disturbed. Therefore, according to the tenth aspect, the sheet packaging body can be used neatly to the end.

[0032] Furthermore, in the tenth aspect, the outlet is formed in the center of the top surface, so that the outlet can be opened in the center of the top surface. This allows the sheet to be pulled out from the center of the top surface when it is taken out from the outlet. Therefore, according to the tenth aspect, the sheet can be easily taken out from the outlet, and can be stably taken out from the outlet.

[0033] An eleventh aspect of the present invention is a sheet packaging body, in which the lid body is provided with an adhesive seal on an edge opposite to the edge connected to the top surface. The edge opposite to the edge connected to the top surface is a free end that is not connected to the top surface. The adhesive seal refers to a seal that adheres to the top surface while being fixed to the lid body.

[0034] In an eleventh aspect, an adhesive seal is provided on the edge of the lid opposite to the edge connected to the top surface, so that the adhesive seal can be pinched as a trigger for tearing open a portion of the top surface. When the trigger is pulled upward, the portion of the top surface tears open, forming an outlet opening in the top surface, and the torn portion of the top surface forms a lid that closes the outlet so that it can be resealed.

[0035] In this configuration, the outlet can be opened without pressing down on the top surface of the packaging bag, which in the eleventh aspect makes it possible to prevent the sheet from being torn when the outlet is opened.

[0036] In the eleventh aspect, since the lid is provided with such an adhesive seal, the lid can be attached to the top surface with the outlet closed. This makes it easy to reseal the outlet with the lid. Furthermore, with the outlet closed, the shape of the packaging bag is easily maintained, and the state in which the sheets are contained within the packaging bag is less likely to be disturbed. Furthermore, since the lid is kept closed, it is possible to prevent dust from entering the packaging bag through the closed outlet.

[0037] In the eleventh aspect, since such an adhesive sticker is provided on the lid, there is a risk that the sheet will stick to the adhesive sticker when the sheet is taken out from the outlet. However, in the eleventh aspect, as described above, the movement of the unfolded lid that returns to its original state to close the outlet can be slowed down, so that the lid is less likely to get in the way. Therefore, in the eleventh aspect, even if an adhesive sticker is provided on the lid, the sheet is less likely to stick to the adhesive sticker. Effect of the Invention

[0038] According to one aspect of the present invention, it is possible to provide a sheet package from which sheets can be easily removed. [Brief description of the drawings]

[0039] [Figure 1] FIG. 2 is a diagram showing a sheet wrapping body according to the first embodiment. [Diagram 2] 2 is a diagram showing a sheet stack contained in the sheet packaging body of FIG. 1. FIG. [Diagram 3] 2 is a view of the sheet packaging body of FIG. 1 as seen from the top side. [Figure 4] 2 is a view of the sheet wrapping body of FIG. 1 as seen from the bottom side. [Diagram 5] 2 is a front view of the sheet wrapping body of FIG. 1. FIG. [Figure 6] 2 is a view of the sheet wrapping body of FIG. 1 as seen from the left side. [Figure 7] 2 is a view of the sheet wrapping body of FIG. 1 as seen from the right side. [Figure 8] 4 is an enlarged view of a portion of the take-out opening and the seal portion in the sheet packaging body of FIG. 3. [Figure 9] 2 is a diagram showing the sheet packaging body of FIG. 1 with an outlet opening. FIG. [Figure 10] 9 is a view of the sheet wrapping body of FIG. 8 as seen from the front side. [Figure 11] 10 is a view showing the sheet packaging body of FIG. 9 with the outlet opening closed. [Figure 12] FIG. 4 is a diagram showing a first modified example of the first embodiment. [Figure 13] FIG. 11 is a diagram showing a second modified example of the first embodiment. [Figure 14] FIG. 11 is a diagram showing a third modified example of the first embodiment. [Figure 15] FIG. 13 is a diagram showing a fourth modified example of the first embodiment. [Figure 16] 13 is an enlarged view of a portion of the dispensing opening and the seal portion in a sheet packaging body according to a second embodiment. FIG. [Figure 17] 13 is an enlarged view of a portion of the dispensing opening and the seal portion in the sheet packaging body according to the third embodiment. FIG. [Figure 18] FIG. 13 is a diagram showing a sheet wrapping body according to a fourth embodiment. [Figure 19] FIG. 13 is a diagram showing a sheet wrapping body according to a fifth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0040] The embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, the same or corresponding components will be denoted by the same reference numerals and the description thereof will be omitted unless otherwise specified. In each drawing, the scale of each component may differ from the actual scale.

[0041] In each figure, a three-dimensional Cartesian coordinate system is used in three axial directions (X, Y, and Z), with the longitudinal direction of the sheet packaging body defined as the X direction, the width direction defined as the Y direction, and the height direction (vertical direction) defined as the Z direction. Additionally, the upper side indicates the upper side of the top surface of the packaging bag in the height direction (Z direction) of the sheet packaging body, and the lower side indicates the lower side of the top surface of the packaging bag in the height direction (Z direction) of the sheet packaging body.

[0042] Fig. 1 is a diagram showing a sheet packaging body according to a first embodiment. Fig. 2 is a diagram showing a sheet laminate housed in the sheet packaging body of Fig. 1. Fig. 3 is a diagram showing the sheet packaging body of Fig. 1 as viewed from the top side. Fig. 4 is a diagram showing the sheet packaging body of Fig. 1 as viewed from the bottom side. Fig. 5 is a diagram showing the sheet packaging body of Fig. 1 as viewed from the front side. Fig. 6 is a diagram showing the sheet packaging body of Fig. 1 as viewed from the left side. Fig. 7 is a diagram showing the sheet packaging body of Fig. 1 as viewed from the right side.

[0043] As shown in Fig. 1, the sheet packaging body 100 according to the first embodiment has a packaging bag 10 and an outlet 20. The sheet packaging body 100 is an example of a sheet packaging body according to an embodiment. The packaging bag 10 and the outlet 20 are an example of a packaging bag and an outlet constituting the sheet packaging body according to an embodiment.

[0044] As shown in Fig. 1, the packaging bag 10 contains a plurality of stacked sheets (or a plurality of sets) S (hereinafter referred to as a sheet stack SL). The sheet stack SL is contained in the packaging bag 10 so that the stacking direction (LD direction) of the sheets S is the height direction (Z direction) (Figs. 1 and 2). The sheet stack SL is designed so that the sheets S can be pulled out one by one (or one set by one) through an outlet 20 (opening OP) formed in the packaging bag 10 (Fig. 9).

[0045] The form of the sheet stack SL is not particularly limited, and may be, for example, a stack of sheets S folded so that the folds F of the sheets S can be pinched (Figure 2), a stack of sheets S folded and alternately stacked (a so-called pop-up type sheet stack), or a stack of multiple sheets S simply stacked.

[0046] In addition, the dimensions of the sheet laminate SL can be such that the length in the longitudinal direction (X direction) of the sheet wrapping body 100 is 80 mm or more and 195 mm or less, the width in the transverse direction (Y direction) perpendicular to the longitudinal direction (X direction) of the sheet wrapping body 100 is 50 mm or more and 145 mm or less, and the height in the height direction (Z direction) is 5 mm or more and 80 mm or less (Figure 2).

[0047] The form of the sheet laminate SL is not particularly limited. For example, the sheet laminate SL may be one (or a set of) sheets that are Z-folded, with the upper and lower fold edges folded in half, and further folded in half at the center in the longitudinal direction and laminated together.

[0048] The form of the sheets S constituting the sheet laminate SL is not particularly limited, and can be applied to, for example, sanitary thin papers such as tissue paper, toilet paper, kitchen paper, paper towels, etc. These sanitary thin papers also include sanitary thin papers containing moisturizing components (for example, lotion tissue, etc.). Furthermore, these sanitary thin papers may contain aqueous solutions of alcohol or sodium hypochlorite, fragrances such as air fresheners, chemicals such as deodorants, etc.

[0049] The use of the sheet S is not particularly limited, and may be for industrial, home, or portable use. Among these, the sheet in this embodiment is preferably used as a lotion tissue for home or portable use.

[0050] The number of plies of the sheet S is not particularly limited, and can be 1 or more, preferably 1 ply, and more preferably 2 plies (two plies stacked together). The shape of the sheet S is not particularly limited, and for example, it is preferable that the shape of the two-ply sheet folded is quadrangular (rectangular, square, etc.) in a plan view.

[0051] The material of the sheet S is not particularly limited, and may be, for example, a sheet of paper, nonwoven fabric, cloth, or the like, and is preferably a paper sheet (hereinafter referred to as a paper sheet). When the sheet S is a paper sheet, base paper containing pulp as the main raw material is used. The pulp composition may be a known composition for paper sheets. For example, the blending ratio of pulp may be 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass.

[0052] The pulp composition in the sheet S (paper sheet) is not particularly limited. For example, softwood pulp such as NBKP (softwood kraft pulp) or NUKP (softwood unbleached pulp) and hardwood pulp such as LBKP (hardwood kraft pulp) or LUKP (hardwood unbleached pulp) can be used in any ratio. The ratio of softwood pulp to hardwood pulp is not limited, and is preferably 10:90 to 80:20, and more preferably, the ratio of softwood pulp to hardwood pulp is higher in the pulp composition. The pulp contained in the sheet S (paper sheet) may be recycled paper pulp.

[0053] The basis weight of the sheet S is not particularly limited, but in the case of paper, it is 5 g / m depending on the number of plies. 2 More than 80g / m 2 For non-woven fabrics, the limit is 20 g / m 2 More than 100g / m 2The following is preferable. The basis weight can be measured in accordance with the provisions of JIS P 8124.

[0054] The thickness of the sheet S (paper sheet) is not particularly limited, and the paper thickness measured under the environment of JIS P 8111 (1998) can be adopted. For example, the thickness of the sheet S (paper sheet) can be 50 μm or more and 500 μm or less per two plies, preferably 60 μm or more and 330 μm or less, and more preferably 100 μm or more and 200 μm or less.

[0055] The sheet S (paper sheet) may be embossed. Such embossing can be performed by a known embossing method.

[0056] In this embodiment, the sheet S (sheet laminate SL) is pillow-packaged. Pillow packaging is a packaging form in which both ends or one end of a cylindrical film folded in three or a cylindrical flexible film folded in a gusset shape are sealed. Specifically, in the sheet packaging body 100, seal portions 30, 40 are formed at both ends 10A, 10B in the first direction (X direction) of the packaging bag 10 so that the sheet laminate SL is pillow-packaged (FIGS. 1 and 3).

[0057] The sealed portion 30 extends in a second direction (Y direction) intersecting the first direction (X direction) on the same plane as the top surface 11, and constitutes a part of the packaging bag 10 that seals the end 11A of the packaging bag 10. The sealed portion 40 extends in the second direction (Y direction), and constitutes a part of the packaging bag 10 that seals the end 11B of the packaging bag 10. The sealed portion 40 is a sealed portion in a sheet packaging body according to the embodiment (a sealed portion of a pillow package formed at least at one end of both ends in the first direction of the top surface). of Here is one example.

[0058] The first direction (X direction) indicates a direction along a predetermined direction on the top surface 11 of the packaging bag 10 (FIGS. 1 and 3). The second direction (Y direction) intersects with the first direction (X direction) on the same plane as the top surface 11 indicates a direction perpendicular to the first direction (X direction) on the top surface 11 of the packaging bag 10 or a direction along a direction intersecting a brace (FIGS. 1 and 3).

[0059] The material of the packaging bag 10 is not particularly limited, and examples of resins that can be used include polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer (EVA), and polyamide (PA).

[0060] Among these resins, polyethylene, polypropylene, polyethylene terephthalate, and the like are preferred from the viewpoints of flexibility, excellent handling, high sealability, and low cost. Polyethylene is preferred from the viewpoints of odorlessness, excellent water resistance and chemical resistance, and low cost mass production. As polyethylene, high density polyethylene, low density polyethylene, and the like can be used. Polypropylene is preferred from the viewpoints of robustness, ease of molding, good color development when printed, and ability to impart gloss.

[0061] The form of the packaging bag 10 is not particularly limited, and may be a monolayer film formed of a single layer of the above-mentioned resin, a laminate film in which the above-mentioned resin is laminated, or a mixed film formed of a mixture of two or more of the above-mentioned resins.

[0062] The thickness of the packaging bag 10 is not particularly limited, and is preferably 10 μm or more and 100 μm or less, and more preferably 15 μm or more and 70 μm or less. By making the thickness of the packaging bag 10 10 μm or more, it is possible to ensure sufficient strength for the packaging bag 10 in which the sheet S is contained. Furthermore, by making the thickness of the packaging bag 10 100 μm or less, it is possible to ensure the flexibility and light weight of the packaging bag 10 and to reduce costs.

[0063] The material forming the packaging bag 10 is not limited to the resin material such as the flexible film described above, and a paper material (such as craft paper) may be used. In addition, the material forming the packaging bag 10 may be a biodegradable material (such as biodegradable plastics and biodegradable paper) or a biomass material (a renewable organic resource derived from living organisms, such as biomass film, excluding fossil resources).

[0064] The packaging bag 10 has a top surface 11 and a bottom surface 12. In the sheet packaging body 100, the top surface 11 and the bottom surface 12 face each other in the vertical direction (Z direction) (FIGS. 1, 3 to 7). The top surface 11 is an example of the top surface of the packaging bag that constitutes the sheet packaging body according to this embodiment.

[0065] The top surface 11 has ends 11A and 11B in a first direction (X direction) and ends 11C and 11D in a second direction (Y direction). Sealed portions 30 and 40 are formed at the ends 11A and 11B of the top surface 11 (FIG. 3). The bottom surface 12 has ends 12A and 12B in the first direction (X direction) and ends 12C and 12D in the second direction (Y direction). Sealed portions 30 and 40 are formed at the ends 12A and 12B of the bottom surface 12 together with the ends 11A and 11B of the top surface 11 (FIG. 4).

[0066] The dimensions of the packaging bag 10 are the length L in the longitudinal direction (X direction) of the sheet packaging body 100. 1 is 80 mm or more and 200 mm or less, and the width W in the short direction (Y direction) perpendicular to the longitudinal direction (X direction) of the sheet wrapping body 100 1 The height H1 in the height direction (Z direction) can be set to 5 mm or more and 85 mm or less (see Figure 3 ). The dimensions of the packaging bag 10 indicate the dimensions when the sheet laminate SL is contained in the packaging bag 10 (FIGS. 1 to 7).

[0067] The take-out opening 20 is formed on the top surface 11, through which the sheet S is taken out (FIG. 9). The take-out opening 20 opens on the top surface 11 when a portion BL of the top surface 11 of the packaging bag 10 is torn open (FIGS. 1 and 9). In this embodiment, the take-out opening 20 is formed by a tear-open cut line CL (e.g., a perforation) formed on the top surface 11, and when this tear-open cut line CL is torn, an opening OP is formed on the top surface 11 of the packaging bag 10, and this opening OP becomes the take-out opening 20 (FIGS. 1, 3, and 9).

[0068] The cut line for splitting CL is a cut line where the cuts C1 and ties T1 (the uncut parts between two cuts C1) are arranged alternately, and when a tie T1 breaks, the adjacent cuts C1 on both sides become continuous cuts (Fig. 1, Fig. 3). In the cut line for splitting CL, the length of the cuts C1 and the length of the ties T1 are arbitrary.

[0069] In the tearing cut line CL, the length of each cut C1 can be 0.8 mm to 5.0 mm, preferably 1.5 mm to 4.5 mm, more preferably 2.5 mm to 3.5 mm, and the length of each tie T1 can be 0.3 mm to 5.0 mm, preferably 0.4 mm to 2.0 mm, more preferably 0.5 mm to 1.5 mm.

[0070] The shape of the outlet 20 is arbitrary. In this embodiment, the shape of the outlet 20 is a semi-ellipse in a plan view. B It extends from the side end 20A to the end 20B, and the top end 11 B 1, 3, and 8. Here, central portion 11E of top surface 11 includes center G of top surface 11 and indicates an area of ​​about one-tenth to one-fifth of the entire top surface 11 (FIG. 3).

[0071] The interval L2 of the take-out openings 20 in the first direction (X direction) is 20% to 60% of the length L1 in the longitudinal direction (X direction) of the packaging bag 10, preferably 30% to 55%, and more preferably 40% to 50%. The interval W2 of the take-out openings 20 in the second direction (Y direction) is 50% to 90% of the width W1 in the width direction (Y direction) of the packaging bag 10, preferably 60% to 85%, and more preferably 70% to 80% (FIG. 3).

[0072] The sheet packaging body 100 of this embodiment further has a lid body 50. The lid body 50 is formed by a portion BL of the cleaved top surface 11, and closes the outlet 20 in a reclosable manner. Here, closing the outlet 20 in a reclosable manner means that the lid body 50 covers the open outlet 20 (opening OP) (FIGS. 9 and 11).

[0073] A portion of the edge 51 of the lid 50 is connected to the top surface 11. Here, a portion of the edge 51 is connected to the top surface 11 means that the lid 50 is fixed to the top surface 11 via the portion of the edge 51 even after the outlet 20 (opening OP) is opened (FIG. 9).

[0074] In the sheet packaging body 100 of this embodiment, a processed portion 60 is provided on the lid body 50 (FIGS. 1 and 8). The processed portion 60 has a function of delaying the closing action of the lid body 50. Here, delaying the closing action of the lid body 50 means slowing down the movement of the lid body 50 to return to its original state for closing the outlet 20 when the lid body 50 is unfolded in the direction to open the outlet 20.

[0075] The movement of the lid body 50 to return to its original state is considered to be the movement of the lid body 50 caused by elastic stress (hereinafter referred to as stress) generated inside the lid body 50 due to an external force applied to the lid body 50. The elastic stress distribution generated inside the lid body 50 is discontinuously or partially alleviated by the processed portion 60 (hereinafter referred to as the stress of the lid body being alleviated), which is considered to be one of the reasons why the closing operation of the lid body 50 is delayed (FIGS. 9 and 10).

[0076] In the sheet packaging body 100 of this embodiment, the outlet 20 is formed on the end 11B side in the first direction (X direction). The edge 51 of the lid body 50 on the seal portion 40 side is connected to the top surface 11. The processing portion 60 is provided on the seal portion 40 side of the lid body 50 (FIGS. 1, 3, and 8).

[0077] In the sheet packaging body 100 of this embodiment, the processed portion 60 extends in a second direction (Y direction) intersecting with the first direction (X direction) of the top surface 11. Specifically, the processed portion 60 extends parallel to the sealed portion 40 along the second direction (Y direction) at a position at a distance L3 of about 1 mm from the sealed portion 40 in the first direction (X direction) (FIGS. 3 and 8).

[0078] The distance L3 between the seal portion 40 and the processed portion 60 in the first direction (X direction) is not limited to the distance in this embodiment. For example, the distance L3 between the seal portion 40 and the processed portion 60 is 0.5% to 20% of the interval L2 of the outlet 20 in the first direction (X direction), preferably 1% to 15%, and more preferably 2% to 10%.

[0079] The length (width W3) of the processed portion 60 in the second direction (Y direction) is not limited to the distance in this embodiment. For example, the length (width W3) of the processed portion 60 is 65% to 100%, preferably 70% to 100%, more preferably 75 to 100%, of the interval (width W2) of the outlets 20 in the second direction (Y direction) (FIG. 3).

[0080] In this embodiment, the length (width W3) of the processed portion 60 in the second direction (Y direction) is the same as the width W2 in the second direction (Y direction) of the outlet 20 (FIGS. 1, 3, and 8). That is, the processed portion 60 is formed along the second direction (Y direction) from edge 53 to edge 54 in the second direction (Y direction) of the lid 50 (FIG. 8).

[0081] In addition, in order to facilitate positioning when providing the processed portion 60, the processed portion 60 may be provided so that the length (width W3) of the processed portion 60 in the second direction (Y direction) is longer than the width W2 of the outlet 20 in the second direction (Y direction).

[0082] In the sheet packaging body 100 of this embodiment, the processed portion 60 is formed by a perforation PF (FIGS. 1, 3, and 8). Here, the perforation PF is formed by alternating cuts C2 and ties T2 (the uncut portion between two cuts C2, C2) (FIG. 8). In this embodiment, the perforation PF constituting the processed portion 60 has a ratio of the length of the cut C2 to the length of the tie T2 of 1:1.

[0083] In addition, the length of the cut C2 and the length of the tie T2 in the perforation PF are arbitrary. For example, the length of each cut C2 can be 0.3 mm or more and 5 mm or less, preferably 0.5 mm or more and 4.5 mm or less, and more preferably 1 mm or more and 3.5 mm or less. Also, the length of each tie T2 can be 0.3 mm or more and 5 mm or less, preferably 0.5 mm or more and 4.5 mm or less, and more preferably 1 mm or more and 3.5 mm or less.

[0084] In the sheet packaging body 100 according to this embodiment, an adhesive seal 70 is provided on the lid body 50 at an edge 52 opposite to an edge 51 connected to the top surface 11 (FIGS. 1 and 3). Here, the edge 52 opposite to the edge 51 connected to the top surface 11 constitutes a free end that is not connected to the top surface 11.

[0085] The adhesive seal 70 is a seal that adheres to the top surface 11 while being fixed to the lid body 50. The adhesive seal 70 is composed of a fixing part 71 fixed to the edge 52 of the lid body 50, and an adhesive part 72 that is peelably adhered to the top surface 11. The form of the adhesive seal 70 is not limited, and for example, a base material (not shown) can be used in which the fixing part 71 to which an adhesive is applied and the adhesive part 72 to which an adhesive having a weaker adhesive strength than the fixing part 71 is applied.

[0086] The material of the substrate is not limited, and may be a resin material such as the flexible film used in the above-mentioned packaging bag 10, a paper material, a biodegradable material, a biomass material, or the like. The form of the substrate is not limited, and may be a single-layer film, a laminate film, or a mixed film used in the above-mentioned packaging bag 10. Furthermore, the thickness of the substrate may be the same as the thickness of the flexible film used in the above-mentioned packaging bag 10.

[0087] The adhesive material of the fixing portion 71 is not limited, but is preferably an adhesive having an adhesive strength of 9 N / 25 mm or more and 30 N / 25 mm or less. The adhesive material of the adhesive portion 72 is not limited, but is preferably a material having an adhesive strength of 1 N / 25 mm or more and 8 N / 25 mm or less. Here, the adhesive strength refers to the peel resistance value measured by an adhesive strength test method based on JIS Z0237.

[0088] In the sheet packaging body 100 of the first embodiment, as described above, the lid body 50 that closes the outlet 20 in a resealable manner has the processed portion 60 that delays the closing action of the lid body 50, so that when the lid body 50 is unfolded in the direction to open the outlet 20, the movement of the unfolded lid body 50 that tries to return to the original state that closes the outlet 20 can be slowed down. This makes it possible to maintain the unfolded lid body 50 away from the outlet 20 when the sheet S is taken out from the outlet 20 (FIGS. 9 and 10).

[0089] In this embodiment, even if a lid 50 is provided to cover the outlet 20, the lid 50 is unlikely to get in the way when removing the sheet S from the outlet 20 (FIGS. 9 and 10). Therefore, according to this embodiment, it is possible to provide a sheet packaging body 100 that allows easy removal of the sheet S.

[0090] In this embodiment, the cleaved portion BL of the top surface 11 constitutes the lid 50 that closes the outlet 20 in a resealable manner, making it difficult for dirt, dust, and the like (hereinafter, referred to as dust) to enter the packaging bag 10 through the closed outlet 20. This allows the sheet packaging body 100 to be used hygienically in this embodiment (FIG. 11).

[0091] Furthermore, in this embodiment, the cleaved portion BL of the top surface 11 becomes the lid 50 that closes the outlet 20 in a resealable manner, and a partial edge 51 of the lid 50 is connected to the top surface 11, so that the lid 50 constituting the cleaved portion BL of the top surface 11 becomes a small piece BL connected to the top surface 11 without being separated from the packaging bag 10. Therefore, in this embodiment, no fragments (such as scraps separated from the packaging bag 10) are generated when the outlet 20 is opened (FIGS. 9 to 11).

[0092] In the sheet packaging body 100 of the first embodiment, as described above, the processed portion 60 of the lid body 50 is provided on the seal portion 40 side of the lid body 50, so that the vicinity 51A of the edge 51 of the lid body 50 connected to the top surface 11 becomes the processed portion 60 of the lid body 50. The vicinity 51A of the edge 51 on the seal portion 40 side of the lid body 50 is a portion where stress is likely to occur when the lid body 50 is unfolded to open the take-out port 20, so by providing the processed portion 60 of the lid body 50 in this portion, the stress of the lid body 50 is likely to be alleviated. Therefore, according to this embodiment, the function of delaying the closing operation of the lid body 50 can be improved (FIGS. 9 and 10).

[0093] In addition, in this embodiment, the outlet 20 is formed on one end 11B side in the first direction (X direction) of the top surface 11, so the outlet 20 is not formed on the entire top surface 11. Therefore, the shape of the packaging bag 10 is likely to be maintained even after the outlet 20 is opened, and the state in which the sheets S (sheet stack SL) are contained within the packaging bag 10 is unlikely to be disturbed. Therefore, according to this embodiment, the sheet packaging body 100 can be used neatly to the end (FIGS. 9 and 10).

[0094] In this embodiment, the outlet 20 is formed on one end 11B side in the first direction (X direction) of the top surface 11, so that the outlet 20 can be opened on the sealed portion 40 side of the top surface 11. As a result, when the sheet S is taken out from the outlet 20, the sheet S can be pulled out toward the top surface 11, and can also be pulled out toward the sealed portion 40 along the first direction (X direction). Therefore, according to this embodiment, it is possible to provide a sheet packaging body 100 that is easy to use (FIGS. 9 and 10).

[0095] In the sheet packaging body 100 of the first embodiment, as described above, the processed portion 60 of the lid body 50 extends in the second direction (Y direction) intersecting with the first direction (X direction) of the top surface 11, so that the processed portion 60 can be provided along the edge 51 of the lid body 50 connected to the top surface 11. This makes it easier to relieve stress on the lid body 50 in this embodiment, and further enhances the function of delaying the closing operation of the lid body 50 (FIGS. 9 and 10).

[0096] In this embodiment, as described above, by making the length (width W3) of the processed portion 60 of the lid 50 in the second direction (Y direction) the same as the width W2 of the outlet 20 in the second direction (Y direction), the processed portion 60 can be provided over the entire vicinity 51A of the edge 51 on the seal portion 40 side of the lid 50 (a portion where stress is likely to occur when the lid 50 is unfolded to open the outlet 20). Therefore, according to this embodiment, the stress of the lid 50 is further easily alleviated, and the function of delaying the closing operation of the lid 50 can be further improved (FIGS. 9 and 10).

[0097] In this embodiment, as described above, the processed portion 60 of the lid body 50 is configured with the perforations PF, which facilitates the work of forming the processed portion 60 of the lid body 50. Also, in this embodiment, the portion of the lid body 50 where the perforations PF are provided (processed portion 60) relieves stress on the lid body 50, so that it is possible to impart a function of delaying the closing operation of the lid body 50.

[0098] In this embodiment, as described above, the adhesive seal 70 is provided on the edge 52 opposite to the edge 51 connected to the top surface 11 of the lid 50, and the adhesive seal 70 can be pinched as a trigger TG for tearing open the part BL of the top surface 11. When the trigger TG is pulled upward, the part BL of the top surface 11 is torn open, forming the outlet 20 that opens into the top surface 11, and the torn part BL of the top surface 11 constitutes the lid 50 that closes the outlet 20 in a resealable manner (FIGS. 1, 9 to 11).

[0099] In this embodiment, with such a configuration, the outlet 20 can be opened without pressing the top surface 11 of the packaging bag 10. This makes it possible to prevent the sheet S from being torn when the outlet 20 is opened (FIGS. 1, 3, 9, and 10).

[0100] Furthermore, in this embodiment, since the lid 50 is provided with such adhesive seal 70, the lid 50 can be adhered to the top surface 11 with the outlet 20 closed. This makes it easy to reseal the outlet 20 with the lid 50. Furthermore, with the outlet 20 closed, the shape of the packaging bag 10 is easily maintained, and the state in which the sheet S (sheet laminate SL) is contained within the packaging bag 10 is less likely to be disturbed. Furthermore, since the lid 50 is maintained in a closed state, it is possible to prevent dust from entering the packaging bag 10 through the closed outlet 20 (FIGS. 1, 3, 9 to 11).

[0101] In this embodiment, since the adhesive sticker 70 is provided on the lid 50, there is a risk that the sheet S will stick to the adhesive sticker 70 when the sheet S is taken out from the outlet 20. However, in this embodiment, as described above, the movement of the unfolded lid 50 returning to its original state for closing the outlet 20 can be slowed down, and the lid 50 is less likely to get in the way. Therefore, in this embodiment, even if the adhesive sticker 70 is provided on the lid 50, the sheet S is less likely to stick to the adhesive sticker 70 (FIGS. 1, 3, 9, and 10).

[0102] Fig. 12 is a diagram showing a first modified example of the first embodiment. In Fig. 12, the description of the parts common to Fig. 8 will be omitted. In the sheet packaging body 100 according to the first modified example of the first embodiment, the processed portion 60 extends parallel to the sealed portion 40 along the second direction (Y direction) at a position at a distance L3 of about 5 mm from the sealed portion 40 in the first direction (X direction) (Fig. 12).

[0103] In the first modified example of the first embodiment, the distance between the processed portion 60 and the sealing portion 40 is longer than in the first embodiment described above (FIG. 8). However, since the processed portion 60 is provided over the entire vicinity 51A (the portion where stress is likely to occur when the lid body 50 is unfolded to open the outlet 20) close to the edge 51 on the sealing portion 40 side of the lid body 50, the stress on the lid body 50 is alleviated and the function of delaying the closing operation of the lid body 50 can be maintained (FIGS. 9 and 10).

[0104] Fig. 13 is a diagram showing a second modified example of the first embodiment. In Fig. 13, the description of the parts common to Fig. 8 will be omitted. In the sheet wrapping body 100 according to the second modified example of the first embodiment, the length (width W3) of the processed portion 60 in the second direction (Y direction) is shorter than the width W2 of the lid body 50 in the second direction (Y direction) (Fig. 13).

[0105] In the second modified example of the first embodiment, by making the length (width W3) of the processed portion 60 of the lid body 50 in the second direction (Y direction) shorter than the width W2 of the lid body 50 in the second direction (Y direction), it is possible to reduce the formation area of ​​the processed portion 60 in the lid body 50 without significantly reducing the stress relaxation function of the lid body 50. Therefore, according to this embodiment, it is possible to adjust the time for delaying the closing operation of the lid body 50 while imparting the function of delaying the closing operation of the lid body 50.

[0106] Fig. 14 is a diagram showing a third modified example of the first embodiment. In Fig. 14, explanations of parts common to Fig. 8 will be omitted. In the sheet wrapping body 100 according to the second modified example of the first embodiment, the processed portion 60 is composed of a pair of processed portions 60 spaced apart from each other on the sides of the end edges 53, 54 in the second direction (Y direction) of the lid body 50 (Fig. 14).

[0107] In the third modified example of the first embodiment, the length (the sum of widths W31 and W32) of the processed portion 60 in the second direction (Y direction) is shorter than the width W2 of the lid body 50 in the second direction (Y direction) (FIG. 14). Therefore, in this embodiment, similar to the second modified example of the first embodiment (FIG. 13), it is possible to reduce the formation area of ​​the processed portion 60 in the lid body 50 without significantly reducing the stress relaxation function of the lid body 50.

[0108] Fig. 15 is a diagram showing a fourth modified example of the first embodiment. In Fig. 15, the description of the parts common to Fig. 8 will be omitted. In the sheet packaging body 100 according to the fourth modified example of the first embodiment, the perforation PF constituting the processed portion 60 has a ratio of the length of the cut C2 to the length of the tie T2 of 3:1 (Fig. 15).

[0109] In the fourth modified example of the first embodiment, compared to the first embodiment described above (Figure 8), even if the ratio between the length of cut C2 and the length of tie T2 is changed so that the length of cut C2 is longer than the length of tie T2, the processed portion 60 is provided over the entire vicinity 51A (a portion where stress is likely to occur when the lid body 50 is unfolded to open the outlet 20) close to the edge 51 on the sealing portion 40 side of the lid body 50, so that in this embodiment, the stress on the lid body 50 is alleviated and the function of delaying the closing operation of the lid body 50 can be maintained (Figure 15).

[0110] Fig. 16 is an enlarged view of a portion of the removal opening and the seal portion in the sheet wrapping body according to the second embodiment. In Fig. 16, the description of the portions common to Fig. 8 will be omitted. In the sheet wrapping body 200 of the second embodiment, the processed portion 60 is formed by pressing. Here, pressing means that a mold or the like is pressed against the processed portion 60 to deform the processed portion 60. In this embodiment, the portion of the lid body 50 where the processed portion 60 is provided is configured as the pressure deformation portion PD (Fig. 16).

[0111] In the second embodiment, the processed portion 60 of the lid body 50 is formed by such pressing, and therefore the work of forming the processed portion 60 of the lid body 50 is easy. Also, in the second embodiment, the pressurized and deformed portion of the lid body 50 (pressurized and deformed portion PD) relieves the stress of the lid body 50, and therefore it is possible to impart a function of delaying the closing action of the lid body 50 (FIG. 16).

[0112] Fig. 17 is an enlarged view of a portion of the removal opening and the seal portion in the sheet packaging body according to the third embodiment. In Fig. 17, the description of the portions common to Fig. 8 will be omitted. In the sheet packaging body 300 of the third embodiment, the processed portion 60 is formed by heating. Here, heating refers to pressing a heated mold against the processed portion to cause thermal deformation. In this embodiment, the portion of the lid body 50 where the processed portion 60 is provided is configured as the thermally deformed portion HD (Fig. 17).

[0113] In the third embodiment, the processed portion 60 of the lid body 50 is formed by such heating, and therefore the work of forming the processed portion 60 of the lid body 50 is easy. Also, in the third embodiment, the thermally deformed portion of the lid body 50 (thermally deformed portion HD) relieves the stress of the lid body 50, and therefore, a function of delaying the closing action of the lid body 50 can be imparted (FIG. 17).

[0114] Fig. 18 is a diagram showing a sheet wrapping body according to a fourth embodiment. In Fig. 18, explanations of parts common to Fig. 3 will be omitted. In the sheet wrapping body 400 of the fourth embodiment, the outlet 20 is formed on one end 11C side of both ends 11C, 11D in a second direction (Y direction) intersecting with a first direction (X direction) of the top surface 11, and the edge 51 of the lid body 50 on the one end 11C side in the second direction (Y direction) is connected to the top surface 11, and the processed portion 60 is provided on the one end edge 51 side of the lid body 50 (Fig. 18).

[0115] In the fourth embodiment, the processed portion 60 of the lid body 50 is provided on one end portion 11C side in the second direction (Y direction), so that the processed portion 60 of the lid body 50 can be provided in the vicinity 51A (a portion where stress is likely to occur when the lid body 50 is unfolded to open the outlet 20) of the edge 51 of the lid body 50 connected to the top surface 11. Therefore, according to the fourth embodiment, the stress of the lid body 50 is easily alleviated, and the function of delaying the closing operation of the lid body 50 can be improved (FIG. 18).

[0116] In addition, in the fourth embodiment, the outlet 20 is formed on one end 11C side of the top surface 11 in the second direction (Y direction), and therefore the outlet 20 is not formed on the entire top surface 11. Therefore, the shape of the packaging bag 10 is likely to be maintained even after the outlet 20 is opened, and the state in which the sheets S (sheet stack SL) are contained within the packaging bag 10 is unlikely to be disturbed. Therefore, according to the fourth embodiment, the sheet packaging body 100 can be used neatly to the very end (FIG. 18).

[0117] Furthermore, in the fourth embodiment, the outlet 20 is formed on one end 11C side in the second direction (Y direction) of the top surface 11, so that the outlet 20 can be opened on one end 11C side in the second direction (Y direction) of the top surface 11. As a result, when the sheet S is taken out from the outlet 20, the sheet S can be pulled out toward the top surface 11, and can also be pulled out along the second direction (Y direction) to one end 11C side in the second direction (Y direction). Therefore, according to the fourth embodiment, it is possible to provide a sheet packaging body 100 that is easy to use (FIG. 18).

[0118] Fig. 19 is a diagram showing a sheet wrapping body according to a fifth embodiment. In Fig. 19, explanations of parts common to Fig. 3 will be omitted. In the sheet wrapping body 500 of the fifth embodiment, the outlet 20 is formed in the center 11E of the top surface 11, the lid body 50 has one edge 51 in a second direction (Y direction) intersecting with the first direction (X direction) of the top surface 11 connected to the top surface 11, and the processed portion 60 is provided on the one edge 51 side of the lid body 50 (Fig. 19).

[0119] In the fifth embodiment, the processed portion 60 of the lid body 50 is provided on one end portion 11C side in the second direction (Y direction), so that the processed portion 60 of the lid body 50 can be provided in the vicinity 51A (a portion where stress is likely to occur when the lid body 50 is unfolded to open the outlet 20) of the edge 51 of the lid body 50 connected to the top surface 11. Therefore, according to the fifth embodiment, the stress of the lid body 50 is easily alleviated, and the function of delaying the closing operation of the lid body 50 can be improved (FIG. 19).

[0120] In addition, in the fifth embodiment, the outlet 20 is formed in the center 11E of the top surface 11, and therefore the outlet 20 is not formed over the entire top surface 11. Therefore, the shape of the packaging bag 10 is easily maintained even after the outlet 20 is opened, and the state in which the sheets S (sheet stack SL) are contained within the packaging bag 10 is not easily disturbed. Therefore, according to the fifth embodiment, the sheet packaging body 100 can be used neatly to the very end (FIG. 19).

[0121] Furthermore, in the fifth embodiment, the outlet 20 is formed in the central portion 11E of the top surface 11, so that the outlet 20 can be opened in the central portion 11E of the top surface 11. As a result, when the sheet S is taken out from the outlet 20, the sheet S can be pulled out from the central portion 11E of the top surface 11. Therefore, according to the fifth embodiment, the sheet S can be easily taken out from the outlet 20, and the sheet S can be stably taken out from the outlet 20 (FIG. 19).

[0122] The present embodiment will be described in more detail below with reference to examples. The examples and comparative examples were evaluated by the following tests.

[0123] [Sheet packaging (test specimen)] A sheet package in which a plurality of sheets (laminate) were packaged in a packaging bag was prepared as a test specimen (FIGS. 1 to 19). The sheet laminate was made of tissue paper (product name "Elleair Zeitaku Moisturizing", manufactured by Daio Paper Corporation, 2 ply, number of sets: 14 sets (28 sheets), dimensions: length (width) about 125 mm, depth (length) about 75 mm), height (bulk) about 13 mm, in which sheets were laminated in a folded state. The sheet laminate was placed in the packaging bag so that the lamination direction was the height direction (Z direction) of the sheet package. The packaging bag was made of polyethylene (PE) with a thickness of 62 μm. The packaging form of the packaging bag was pillow packaging in which both ends in the longitudinal direction of the packaging bag were sealed to form a seal portion. The dimensions of the packaging bag were a longitudinal length of about 134 mm, a width in the transverse direction of about 84 mm, and a height in the vertical direction of about 12 mm. A tearing score line is provided on the top surface 11 of the packaging bag 10, which forms an opening on the top surface when the packaging bag is torn. A lid body is formed from a part of the torn top surface and closes the opening so that it can be resealed, and a part of its edge is provided so as to be connected to the top surface. The lid body is provided with a processed portion that delays the closing action of the lid body.

[0124] [Sheet tears when opened] The tearing of the sheet when the sheet package was opened was confirmed when the top surface of the packaging bag was torn along the tearing score line to open the outlet. The tearing of the sheet when opened was evaluated as ◯ (good) when the sheet was not torn when opened, and × (bad) when it was torn.

[0125] [Lid angle] The angle of the lid in the sheet packaging was measured after tearing the top surface of the packaging bag along the tearing score line, unfolding the lid about 180° in the direction of opening the outlet, and leaving it for about 3 seconds. The angle was measured as the angle θ from the edge connected to the top surface of the lid to the tip (opposite edge) from the outlet (Figure 10).

[0126] [Easy to take out] The ease of removal of the sheet package was checked by tearing the top surface of the packaging bag along the tearing score line and unfolding the lid in the direction of opening the outlet. The ease of removal was evaluated as ◯ (good) when the lid angle was 90° or more in the above-mentioned openability check, and × (bad) when it was less than 90°.

[0127] [Sheet sticking] Regarding the adhesion of the sheet in the sheet package, the lid was unfolded in the direction of opening the outlet, and the adhesion of the sheet to the adhesive seal of the lid was checked when the sheet was taken out from the outlet. When the sheet did not stick to the adhesive seal of the lid, it was marked as ◯ (good), and when it stuck, it was marked as × (bad).

[0128] [Storability] The storage stability of the sheet packaging was checked by checking the disorder of the sheet (laminated sheet body) after the outlet was opened. The storage stability was evaluated as ⊚ (very good) when the outlet was kept closed and the sheet (laminated sheet body) did not collapse in the packaging bag, ◯ (good) when the sheet (laminated sheet body) did not collapse in the packaging bag, and × (bad) when it collapsed.

[0129] [Hygiene] The hygiene of the sheet packaging was checked by checking the ease of dust intrusion from the outlet after it was opened. Hygiene was evaluated as follows: ◎ (very good) when the outlet remained closed and the gap between the outlet and the lid was less than 1 mm at most; ◯ (good) when the gap between the outlet and the lid was less than 1 mm at most; and × (bad) when the gap between the outlet and the lid was 1 mm or more at most.

[0130] Examples and comparative examples will be described below.

[0131] [Example 1] A semi-elliptical opening (cut line for tearing) with a dimension of 55 mm in the width direction (second direction) and 40 mm in the length direction (first direction) of the packaging bag is formed at the end in the length direction of the packaging bag, the processed part of the lid is formed by a perforation, the ratio of the cut length to the tie length is 1:1, it is located at a distance of about 1 mm from the sealed part in the first direction (X direction), and has a length of about 55 mm in the width direction of the packaging bag (the same length as the width of the opening in the second direction) (Figure 8).

[0132] [Example 2] The distance from the processing part of the lid to the sealing part in the first direction (X direction) is approximately 5 Except for the fact that the nozzle was located at a position 1.5 mm away from the sensor (FIG. 12), evaluation was carried out in the same manner as in Example 1. The results are shown in Table 1.

[0133] [Example 3] Except for making the processed portion of the lid have a length of about 45 mm in the width direction of the packaging bag (a length shorter than the width of the outlet in the second direction) (FIG. 13), evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

[0134] [Example 4] The processed portion of the lid body is configured with a pair of processed portions (two places) spaced apart from each other on the end side of the lid body 50 in the second direction. Each is about 20 mm long in the width direction of the packaging bag. Except for the above (FIG. 14), evaluation was performed in the same manner as in Example 3. The results are shown in Table 1.

[0135] [Example 5] Except for setting the ratio of the cut length of the perforation in the processed portion of the lid to the length of the tie to 3:1 (FIG. 15), evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

[0136] Except for the fact that the processed part of the lid was pressed to provide a pressure-deformed part (Fig. 16), 2 The results are shown in Table 1.

[0137] [Example 7] Except for the fact that the processed part of the lid was heated to create a thermally deformed part (Fig. 17), 2 The results are shown in Table 1.

[0138] [Example 8] Except for providing an adhesive seal on the edge opposite to the edge connected to the top surface of the lid (FIG. 1), evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

[0139] [Example 9] An outlet having a width direction (second direction) dimension of the packaging bag of 25 mm and a length direction (first direction) dimension of 80 mm was formed on one end side in the second direction of the top surface, an edge on one end side in the second direction of the lid was connected to the top surface, a processed portion was provided on the edge side connected to the top surface of the lid, and the length in the width direction of the packaging bag was about 80 mm (the same length as the width of the outlet in the first direction) (FIG. 18), and other than that, evaluation was performed in the same manner as in Example 8. The results are shown in Table 1.

[0140] [Example 10] The evaluation was performed in the same manner as in Example 9, except that the outlet was formed in the center of the top surface, one edge of the lid in the second direction was connected to the top surface, and the processed portion was provided on the edge side of the lid connected to the top surface (FIG. 19). The results are shown in Table 1.

[0141] [Comparative Example 1] Except for the fact that no processed portion was provided, evaluation was carried out in the same manner as in Example 1. The results are shown in Table 1.

[0142] [Comparative Example 2] Except for providing an adhesive seal on the edge opposite to the edge connected to the top surface of the lid, evaluation was performed in the same manner as in Comparative Example 1. The results are shown in Table 1.

[0143] [Comparative Example 3] The evaluation was performed in the same manner as in Example 1, except that a linear outlet (a tearing score line) extending in the first direction was provided in the middle of the packaging bag in the second direction, and neither a lid nor a processed portion was provided. The results are shown in Table 1.

[0144] [Table 1]

[0145] As can be seen from Table 1, a sheet packaging body in which a semi-elliptical removal opening (a score line for tearing) is provided at the longitudinal end of the packaging bag, a lid body is formed with a part of the edge connected to the top surface when the score line for tearing is torn, and a processed part is provided in the lid body to delay the closing action of the lid body, was easy to remove, easy to store, and hygienic (Examples 1 to 10, Figures 1 to 19).

[0146] In contrast, a sheet packaging body in which the lid was not provided with a processed portion for delaying the closing action of the lid was poor in terms of removal (Comparative Example 1). Also, a conventional sheet packaging body in which a linear removal opening (a tearing score line) was provided on the entire top surface of the packaging bag was poor in terms of storage property and sanitation (Comparative Example 3).

[0147] Furthermore, the sheet packaging body in which the adhesive seal was provided on the lid was excellent in both tearing of the sheet when opened and adhesion of the sheet (Examples 8 to 10, Figs. 1 to 7, Figs. 9 to 11).

[0148] In contrast, a sheet packaging body in which an adhesive seal is provided on the lid body but a processed portion for delaying the closing action of the lid body is not provided on the lid body, removability, The sheet did not stick well (Comparative Example 2). Also, in a conventional sheet package in which a linear take-out opening (a tearing score) was provided on the entire top surface of the packaging bag, the sheet broke when opened (Comparative Example 3).

[0149] From these results, it was found that a sheet packaging body having an access opening that opens on the top surface when a portion of the top surface of the packaging bag is torn open, and a lid body formed from the portion of the torn top surface that closes the access opening so that it can be resealed, in which a portion of the edge of the lid body is connected to the top surface and a processed portion is provided on the lid body that delays the closing action of the lid body, is a sheet packaging body that allows the sheet to be easily removed and has excellent storage properties and hygiene.

[0150] Furthermore, it was found that a sheet packaging body in which an adhesive seal is provided on the edge opposite the edge connected to the top surface is a sheet packaging body in which the sheet is less likely to tear when opened and is less likely to stick when removed from the removal opening.

[0151] Although an embodiment of the present invention has been described above, the present invention is not limited to a specific embodiment, and various modifications and changes are possible within the scope of the invention described in the claims. [Explanation of symbols]

[0152] 100 Sheet packaging S Seat F fold SL Sheet laminate LD stacking direction 10 packaging bags 10A, 10B end 11 Top BL part (small piece) 11A, 11B, 11C, 11D ends 11E Central part G center (centroid) 12 Bottom 12A, 12B, 12C, 12D ends 20 Outlet CL Cutting line for cleavage 20A, 20B end 20C convex C1 Cut T1 Thailand OP Opening 30 Seal part 40 Seal part 50 Lid 51 Edge Near 51A 52 Opposite edge 53, 54 Edge in the second direction 60 Processing Department PF Perforation C2 Cut T2 Thailand PD Pressure deformation part HD Heat-deformed part 70 Adhesive sticker TG Trigger 71 Fixed part 72 Adhesive part L1, L2, L3 Length W1, W2, W3 width

Claims

1. A packaging bag for accommodating a plurality of stacked sheets; a take-out opening that opens on the top surface when a portion of the top surface of the packaging bag is torn; a cover formed by a part of the split top surface and configured to close the outlet in a resealable manner; The cover is connected to the top surface at a portion of an edge thereof corresponding to a portion of an edge of the opening serving as the outlet, The lid body is provided with a linear processed portion that delays the closing operation of the lid body, A seal portion for pillow packaging is formed on at least one end of both ends of the top surface in the first direction, The outlet is formed on the at least one end side in the first direction, The lid has an edge on the sealing portion side connected to the top surface, A sheet packaging body, wherein the processed portion is provided only in the vicinity of the end edge of the lid body.

2. The sheet packaging body according to claim 1 , wherein the processed portion extends in a second direction intersecting the first direction of the top surface.

3. The sheet packaging body according to claim 2 , wherein a length of the processed portion in the second direction is the same as a width of the outlet port in the second direction.

4. The sheet packaging body according to claim 2 , wherein a length of the processed portion in the second direction is shorter than a width of the lid body in the second direction.

5. The sheet packaging body according to claim 1 , wherein the processed portion is formed by a perforation.

6. The sheet packaging body according to claim 1 , wherein the processed portion is formed by pressing.

7. The sheet packaging body according to claim 1 , wherein the processed portion is formed by heating.

8. A packaging bag for accommodating a plurality of stacked sheets; a take-out opening that opens on the top surface when a portion of the top surface of the packaging bag is torn; a cover formed by a part of the split top surface and configured to close the outlet in a resealable manner; The cover is connected to the top surface at a portion of an edge thereof corresponding to a portion of an edge of the opening serving as the outlet, The lid body is provided with a linear processed portion that delays the closing operation of the lid body, A pillow package seal portion is formed at each end of the top surface in the first direction, The outlet is formed on at least one end side of both ends of the top surface in a second direction intersecting with the first direction, The lid body has an edge on the at least one end side in the second direction connected to the top surface, A sheet packaging body, wherein the processed portion is provided only in the vicinity of the at least one end edge of the lid body.

9. A packaging bag for accommodating a plurality of stacked sheets; a take-out opening that opens on the top surface when a portion of the top surface of the packaging bag is torn; a cover formed by a part of the split top surface and configured to close the outlet in a resealable manner; The cover is connected to the top surface at a portion of an edge thereof corresponding to a portion of an edge of the opening serving as the outlet, The lid body is provided with a linear processed portion that delays the closing operation of the lid body, A pillow package seal portion is formed at each end of the top surface in the first direction, The outlet is formed in the center of the top surface, The cover has at least one edge of the top surface in a second direction intersecting with the first direction, the edge being connected to the top surface, A sheet packaging body, wherein the processed portion is provided only in the vicinity of the at least one end edge of the lid body.

10. The sheet packaging body according to claim 1 , wherein the lid body is provided with an adhesive seal on an edge opposite to the edge connected to the top surface.

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