JP7456880B2 - Sheet packaging - Google Patents

Description

The present invention relates to a sheet package.

BACKGROUND ART A sheet packaging body for pocket tissue or the like is constructed by storing a sheet of tissue paper or the like in a packaging bag made of resin film. A linear perforation or the like is formed on the top surface of the packaging bag, and when the perforation is torn open, an outlet is formed on the top surface of the packaging bag. By inserting a fingertip into the packaging bag through this outlet and pinching the sheet at the top, the sheet is pulled out to the outside (for example, Patent Document 1).

JP2015-47270A

An object of the present invention is to provide a sheet package that is easy to handle.

A sheet packaging body according to a first aspect includes a packaging bag that accommodates a plurality of stacked sheets, an outlet that opens in the top surface when a part of the top surface of the packaging bag is torn, and a The lid includes a lid that is formed of a part of the top surface and resealably closes the outlet, and an adhesive seal that is fixed to the lid and adheres to the top surface, and the lid includes: a first edge that is connected to the top surface and extends in a first direction; and one end of the first edge that is not connected to the top surface and is convex in a second direction that intersects the first direction. and a second edge extending from the top to the other end, the adhesive seal having a fixing part fixed to the second edge side of the lid, and a fixing part fixed to the top surface adjacent to the fixing part. an adhesive portion that is removably adhered; and a free end portion adjacent to the adhesive portion that is not fixed to the lid body, and at least a portion of an edge of the free end portion on a side away from the adhesive portion. is the waveform.

In this specification, an outlet that opens on the top surface when a part of the top surface of the packaging bag is torn is an outlet that is formed on the top surface of the packaging bag when the tearing cut line formed on the top surface is torn. Indicates that the opening constitutes the outlet. Closing the outlet in a resealable manner means that the lid closes the opened outlet.

The first direction indicates a direction along a predetermined direction on the top surface of the packaging bag. Further, the second direction intersecting the first direction is a direction along the same plane as the top surface of the packaging bag and perpendicular to the first direction or a direction intersecting the brace.

The first edge connected to the top surface indicates a fixed end of the lid body connected to the top surface with the outlet open. The second edge that is not connected to the top surface indicates a free end of the lid that is not connected to the top surface when the outlet is open. Extending from one end of the first end edge to the other end so that the second end edge is convex means that the second end edge connects to both ends of the first end edge and moves away from the first end edge. This shows that it protrudes in plan view.

The adhesive seal refers to a seal that is fixed to the lid and adheres to the top surface of the outside of the lid. Detachably adhered to the top surface means that it can be peeled off from the state of being adhered to the top surface, and that it can be adhered to the top surface again from the peeled state. The free end portion indicates a portion of the adhesive seal that may constitute a handle of the adhesive seal that is neither fixed nor adhered to the lid body.

A waveform refers to a shape in which peaks and valleys are repeated and successive. The side of the free end portion away from the adhesive portion refers to the side of the free end adjacent to the adhesive portion that is opposite to the adhesive portion side. At least a part of the edge of the free end on the side away from the adhesive part refers to all or part of the edge of the free end on the side away from the adhesive part.

In the first aspect, a portion of the torn top surface forms a lid that closes the outlet so that it can be resealed, and this makes it possible to close the outlet, making it difficult for dirt, dust, etc. (hereinafter referred to as dust) to enter the packaging bag through the outlet. This allows the sheet packaging body to be used hygienically in the first aspect.

In addition, in the first aspect, the first edge of the lid body is connected to the top surface, so that the lid body forming a part of the torn top surface is connected to the top surface without being separated from the packaging bag. It becomes a small piece. Therefore, in the first aspect, it is possible to prevent fragments (such as scraps cut off from the packaging bag) from being generated when the outlet is unsealed (or when the outlet is opened).

Further, in the first aspect, the second end edge of the lid body is not connected to the top surface and extends from one end of the first end edge to the other end so that it is convex in a second direction intersecting the first direction. By extending, the second end edge protrudes in a direction away from the first end edge in a plan view, so it is easy to fix the adhesive seal to the second end edge side.

Further, in the first aspect, since the adhesive seal that adheres to the top surface is fixed to the lid body, the adhesive seal can constitute a trigger for opening the outlet on the top surface. When the adhesive seal constituting the trigger is peeled off from the top surface, the top surface cleaves and an outlet opens in the top surface, while a portion of the cleaved top surface can constitute a lid. Accordingly, in the first aspect, the outlet can be opened without pressing down on the top surface of the packaging bag, so it is possible to prevent the sheet from tearing when the outlet is opened.

Further, in the first aspect, since the adhesive seal has a free end, the adhesive seal can be easily grasped, and the outlet can be easily opened, resealed, or closed (hereinafter referred to as opening and closing of the outlet). become.

In addition, in the first aspect, at least a part of the edge of the free end of the adhesive seal on the side away from the adhesive part is made into a wave shape, so that the fingertip that touches the free end of the adhesive seal is free. Only the peaks or valleys that make up the waveform of the edge of the end are contacted. Therefore, in the first aspect, when opening and closing the outlet by pinching the free end of the adhesive seal, it is possible to suppress the strain on the fingertips that touch the free end of the adhesive seal.

Furthermore, in the first aspect, by making the edge of the free end of the adhesive seal wave-shaped, the adhesive seal can be easily identified when opening and closing the outlet in the sheet package. Therefore, according to the first aspect, the free end of the adhesive seal can be easily pinched with fingertips, and the outlet can be easily opened and closed.

In the sheet package according to the second aspect, the crests or troughs of the waveform are curved. A curved peak indicates that the drawn line of the peak is a curve. In the second aspect, by making the peaks of the waveform curved, the fingertip that touches the free end of the adhesive seal smoothly touches the peaks or valleys that make up the waveform on the edge of the free end. Contact. Therefore, in the second aspect, when pinching the free end of the adhesive seal to open and close the outlet, it is possible to further suppress the burden on the fingertips that touch the free end of the adhesive seal.

In the sheet package according to the third aspect, the waveform is a sine wave. In this specification, a sine wave refers to a sinusoidal or sinusoidal waveform having a constant period (wavelength) and amplitude. In the third aspect, by making the waveform a sine wave, the curved peaks or troughs forming the edge of the free end can be regularly arranged along the edge of the free end.

As a result, in the third aspect, the fingertip that touches the free end of the adhesive seal smoothly contacts the peaks or troughs of the sinusoidal waveform that forms the edge of the free end, and It is possible to reduce the discomfort felt by the fingertips that come into contact with the edge of the free end of the seal. In addition, in the third aspect, since the design of the adhesive seal can be enhanced by the sinusoidal waveform, the appearance of the sheet packaging body (or It is possible to suppress deterioration in appearance).

In the sheet package according to the fourth aspect, the waveform is a rectified wave. In this specification, a rectified wave refers to a waveform in which half of one cycle of a sine wave is inverted (full-wave rectified wave) or a waveform in which half of one cycle is zero (half-wave rectified wave). In the fourth aspect, by making the waveform a rectified wave, the curved peaks or troughs forming the edge of the free end can be regularly arranged along the edge of the free end.

As a result, in the fourth aspect, the fingertip touching the free end of the adhesive seal smoothly contacts the peaks or troughs of the rectified wave forming the edge of the free end, and It is possible to reduce the discomfort felt by the fingertips that come into contact with the edge of the free end of the seal. In addition, in the fourth aspect, the design of the adhesive seal can be improved by the waveform of the rectified wave, so the appearance of the sheet package (or It is possible to suppress deterioration in appearance).

In the sheet package according to the fifth aspect, the waveform is a triangular wave. In this specification, a triangular wave refers to a waveform in which triangular valleys and peaks are alternately continuous. In the fifth aspect, by making the waveform triangular, the triangular peaks or troughs forming the edge of the free end can be regularly arranged along the edge of the free end.

As a result, in the fifth aspect, the fingertip touching the free end of the adhesive seal can contact only the crests or troughs of the triangular waveform forming the edge of the free end. When pinching the free end of the adhesive seal to open and close the outlet, the strain on the fingertips that touch the free end of the adhesive seal can be suppressed. In addition, in the fifth aspect, since the design of the adhesive seal can be enhanced by the triangular waveform, the appearance (or appearance) of the sheet packaging body is improved by waving the free end edge of the adhesive seal. ) can be suppressed.

In the sheet package according to the sixth aspect, the period of the waveform is 0.1 mm or more and 6 mm or less. In this specification, the period of a waveform refers to the distance between two adjacent peaks or the distance between two troughs of a waveform. A waveform period of 0.1 mm or more and 6 mm or less indicates that the scale of the waveform is minute.

In the sixth aspect, by setting the period of the waveform of the edge at the free end of the adhesive seal to 0.1 mm or more and 6 mm or less, the interval between the peaks or troughs of the wave forming the edge of the free end. becomes smaller. Thereby, it is possible to further reduce the burden on the fingertips while reducing the discomfort felt by the fingertips at the edge of the free end portion of the adhesive seal.

Further, in the sixth aspect, the gap between the peaks or troughs of the waveform at the edge of the free end of the adhesive seal is reduced, so that the edge of the free end of the adhesive seal is made waveform. Deterioration in the appearance (or appearance) of the sheet package can be further suppressed.

In the sheet package according to the seventh aspect, the period of the waveform is twice or more the wave height of the waveform. In this specification, the wave height of a waveform refers to the vertical distance from the top of the crest to the bottom of the trough of the waveform.

In the seventh aspect, by making the period of the waveform at the free end of the adhesive seal at least twice the wave height of the waveform, the slope of the peak or trough of the waveform forming the edge of the free end is gentle. become. As a result, the edge of the free end of the adhesive seal becomes smooth, further reducing the discomfort felt by the fingertip touching the edge of the free end, and further reducing the burden on the fingertip.

Further, in the seventh aspect, the slope of the crests or troughs of the waveform formed on the edge of the free end portion becomes gentle, so that the edge of the free end portion of the adhesive seal is made waveform. Deterioration in the appearance (or appearance) of the adhesive seal in the sheet package can be further suppressed.

In the sheet package according to the eighth aspect, an edge of the free end portion on a side away from the adhesive portion is convex toward a side away from the adhesive portion in the second direction. In this specification, being convex toward the side away from the adhesive part in the second direction means that the edge of the free end part on the side away from the adhesive part tapers toward the side away from the adhesive part in the second direction. This shows that

In the eighth aspect, since the edge of the free end on the side away from the adhesive part becomes convex toward the side away from the adhesive part in the second direction, the free end of the adhesive seal becomes easy to turn over. , the adhesive sticker becomes easier to pinch. Furthermore, since the adhesive seal is easier to pinch, the free end portion of the adhesive seal can be firmly pinched.

In the sheet package according to the ninth aspect, a processed portion is formed in the free end portion by processing a part of the free end portion. In this specification, the processed portion refers to a portion of the free end of the adhesive seal that has been altered in quality.

In the ninth aspect, by providing the processed portion at the free end of the adhesive seal, the processed portion serves as a mark, making it easier to identify the free end of the adhesive seal. Further, the free end of the adhesive seal is easily deformed due to such a processed portion when it is pinched as a handle. Furthermore, since a frictional force is applied to the processed portion provided on the free end, the free end becomes easier to grip as a handle. Therefore, in the ninth aspect, opening and closing of the outlet becomes easy.

According to one aspect of the present invention, it is possible to provide a sheet package that is easy to handle.

FIG. 1 is a diagram showing a sheet package according to a first embodiment. FIG. 2 is a diagram showing a sheet stack housed in the sheet package of FIG. 1; FIG. 2 is a view of the sheet package shown in FIG. 1 viewed from the top side. FIG. 2 is a view of the sheet packaging body of FIG. 1 viewed from the bottom side. FIG. 2 is a front view of the sheet package shown in FIG. 1; FIG. 2 is a view of the sheet package shown in FIG. 1 viewed from the left side. FIG. 2 is a view of the sheet wrapping body of FIG. 1 as seen from the right side. An enlarged view of the outlet and the adhesive seal in FIG. 3. An enlarged view of the adhesive seal in FIG. 8. A view of the adhesive sticker shown in FIG. 9 from the back side. FIG. 9 is a sectional view taken along line AA in FIG. 9. Cross-sectional view of line B-B in Figure 9. FIG. 2 is a diagram showing an example of a waveform (sine wave) that constitutes the edge of the free end of the adhesive seal. The figure which shows another example of the waveform (sine wave) which comprises the edge of the free end part of the adhesive seal. The figure which shows yet another example of the waveform (sine wave) which comprises the edge of the free end part of an adhesive seal. FIG. 10 is a diagram showing a state in which the free end of the adhesive seal in FIG. 9 has been turned over; FIG. 16 is a sectional view taken along line CC in FIG. 16. FIG. 2 is a diagram showing the sheet packaging body of FIG. 1 with the outlet opening opened; FIG. 19 is a front view of the sheet package shown in FIG. 18; FIG. 19 is a view of the sheet package shown in FIG. 18 with the outlet opening closed. The figure which shows an example of the waveform (triangular wave) which comprises the edge of the free end part of the adhesive seal in the 1st modification of 1st Embodiment. The figure which shows another example of the waveform (triangular wave) which comprises the edge of the free end part of the adhesive seal in the 1st modification of 1st Embodiment. The figure which shows an example of the waveform (rectified wave) which comprises the edge of the free end part of the adhesive seal in the 2nd modification of 1st Embodiment. FIG. 7 is an enlarged view of an outlet and an adhesive seal in a third modification of the first embodiment. The figure which shows the sheet package of 2nd Embodiment. FIG. 7 is a diagram showing a sheet package according to a third embodiment.

Embodiments of the present invention will be described in detail with reference to the drawings. In each figure, unless otherwise specified, the same or corresponding components may be denoted by the same reference numerals and the description thereof may be omitted. Further, in each figure, the scale of each member may be different from the actual scale. In each figure, a three-dimensional orthogonal coordinate system with three axes (X direction, Y direction, Z direction) is used.The width direction of the sheet package is the X direction, the longitudinal direction is the Y direction, and the height direction (vertical direction) ) is the Z direction.

FIG. 1 is a diagram showing a sheet package according to a first embodiment. FIG. 2 is a diagram showing a sheet stack housed in the sheet package of FIG. 1. FIG. 3 is a diagram of the sheet package shown in FIG. 1 viewed from the top side. FIG. 4 is a diagram of the sheet package shown in FIG. 1 viewed from the bottom side. FIG. 5 is a diagram of the sheet package shown in FIG. 1 viewed from the front side. FIG. 6 is a view of the sheet package of FIG. 1 viewed from the left side. FIG. 7 is a view of the sheet package shown in FIG. 1 viewed from the right side.

The sheet package 100 according to the first embodiment has a packaging bag 10 and an outlet 20, as shown in FIG. The sheet package 100 is an example of a sheet package according to the embodiment. The packaging bag 10 and the outlet 20 are examples of a packaging bag and an outlet that constitute the sheet package according to the embodiment.

As shown in FIG. 1, the packaging bag 10 accommodates a plurality of stacked sheets (or a plurality of sets) of sheets S (hereinafter referred to as sheet laminate SL). The sheet stack SL is housed 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 configured such that the sheets S can be pulled out one by one (or one set at a time) through an outlet 20 (opening OP) formed in the packaging bag 10 (FIG. 18).

The form of the sheet laminate SL is not particularly limited. For example, one sheet (or one set) of sheets S is Z-folded, the upper and lower folded edges are each folded in half, and the sheet laminate SL is folded in half at the center in the longitudinal direction. It is possible to use a material that is laminated so that the fold F can be pinched when folded in two (FIG. 2). In addition, the form of the sheet laminate SL may be one in which each sheet S is folded and stacked alternately (a so-called pop-up sheet laminate), or one in which a plurality of sheets S are simply stacked. Good too.

In addition, the dimensions of the sheet laminate SL are such that the length of the sheet package 100 in the longitudinal direction (Y direction) is 80 mm or more and 195 mm or less, and the width direction (X direction) perpendicular to the longitudinal direction (Y direction) of the sheet package 100 is 80 mm or more and 195 mm or less. ) can be 50 mm or more and 145 mm or less, and the height in the thickness direction (Z direction) can be 5 mm or more and 80 mm or less (FIG. 2).

The aspect of the sheet S constituting the sheet laminate SL is not particularly limited, and can be applied to sanitary thin paper such as tissue paper, toilet paper, kitchen paper, and paper towel, for example. These sanitary thin papers also include sanitary thin papers containing moisturizing ingredients (for example, lotion tissues, etc.). Furthermore, these sanitary thin papers may contain an aqueous solution such as alcohol or sodium hypochlorite, a fragrance such as an aromatic, a chemical such as a deodorant, and the like.

Further, the use of the sheet S is not particularly limited, and can be applied to any of industrial, household, and portable uses. Note that among these sheets, household and portable lotion tissues are preferably used as the sheet in this embodiment.

The number of plies of the sheet S is not particularly limited, and can be one or more, preferably one ply, and more preferably two plies (two sheets stacked). Further, the shape of the sheet S is not particularly limited, and for example, it is preferable that the shape of the two-ply sheet in a folded state is a quadrilateral (rectangle, square, etc.) in plan view.

The material of the sheet S is not particularly limited, and for example, a sheet of paper, nonwoven fabric, or cloth can be used, and preferably a sheet made of paper (hereinafter referred to as a paper sheet). Note that when the sheet S is a paper sheet, a base paper whose main raw material is pulp is used. As the pulp composition, a known composition for paper sheets can be used. For example, the blending ratio of pulp can be 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass.

Further, 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. I can do it. Note that the ratio of softwood pulp to hardwood pulp is not limited, and is preferably 10:90 to 80:20, more preferably a pulp composition in which the ratio of softwood pulp to hardwood pulp is higher. Furthermore, waste paper pulp may be used as the pulp contained in the sheet S (paper sheet).

The basis weight of the sheet S is not particularly limited, but depending on the number of plies, it is 5 g/m ² or more and 80 g/m ² or less in the case of paper, and 20 g/m ² or more and 100 g/m ² or less in the case of nonwoven fabric. desirable. Note that the basis weight can be measured in accordance with the regulations of JIS P 8124.

Further, the thickness of the sheet S (paper sheet) is not particularly limited, and a paper thickness measured under the environment of JIS P 8111 (1998) can be adopted. For example, the paper thickness of the sheet S (paper sheet can be 50 μm or more and 500 μm or less per 2 plies, preferably 60 μm or more and 330 μm or less, and more preferably 100 μm or more and 200 μm or less).

Further, the sheet S (paper sheet) may be embossed. Such embossing can be performed by a known embossing method.

The packaging form of the packaging bag 10 is not particularly limited. For example, packaging that seals both ends (sealing) of a cylindrical flexible film that is folded into a gusset shape (pillow packaging), Packaging that is sealed (sealed) (caramel packaging), packaging that heats a heat-shrinkable resin film and brings it into close contact with the packaged object (shrink packaging), or a combination of these can be used.

In this embodiment, the sheet S (sheet laminate SL) is pillow-wrapped. Pillow packaging is a packaging form in which both ends or one end of a cylindrical film folded into three or a gusseted flexible cylindrical film are sealed. be. Specifically, in the sheet package 100, the sheet laminate SL is pillow wrapped at both ends 10A and 10B of the packaging bag 10 in the second direction (Y direction) intersecting the first direction (X direction). Seal portions 30 and 40 are respectively formed in (FIG. 1, FIGS. 3 to 7).

Here, the first direction (X direction) indicates a direction (X direction) along a predetermined direction on the top surface 11 of the packaging bag 10. Further, the second direction (Y direction) intersecting with the first direction (X direction) is a direction perpendicular to the first direction (X direction) or a direction intersecting with the brace on the same plane as the top surface 11 of the packaging bag 10. 1 to 7).

The seal portion 30 has an inner end 31 and an outer end 32 extending in the first direction (X direction), and seals the end 10A of the packaging bag 10 with the inner end 31. Further, the seal portion 40 has an inner end 41 and an outer end 42 extending in the first direction (X direction), and seals the end 10B of the packaging bag 10 with the inner end 41 (FIGS. 3 to 7).

In addition, when the material of the packaging bag 10 is a film such as a resin described later, the first direction (X direction) may be a direction perpendicular to the direction in which the resin is flowed in resin molding (the stretching direction or flow direction of the film). preferable. Moreover, it is preferable that the second direction (Y direction) is the stretching direction or flow direction of the film (FIGS. 1, 3, and 4).

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

Among these resins, polyethylene, polypropylene, polyethylene terephthalate, and the like are preferred because they are flexible, have excellent handling properties, have high sealing properties, and are inexpensive. Further, polyethylene is preferred because it is odorless, has excellent water resistance and chemical resistance, and can be mass-produced at low cost. As the polyethylene, high density polyethylene, low density polyethylene, etc. can be used. Further, polypropylene is preferable from the viewpoints of being strong, easy to mold, showing good color development during printing, and being able to impart gloss.

The form of the packaging bag 10 is not particularly limited, and may be a single layer film formed of a single layer of the above-mentioned resin, a laminate film formed by laminating the above-mentioned resins, or a mixture of two or more of the above-mentioned resins. It may also be a mixed film.

The thickness of the packaging bag 10 is not particularly limited, and is preferably 10 μm or more and 100 μm or less, more preferably 15 μm or more and 70 μm or less. By setting the thickness of the packaging bag 10 to 10 μm or more, sufficient strength as the packaging bag 10 in which the sheet S is accommodated can be ensured. Further, by setting the thickness of the packaging bag 10 to 100 μm or less, flexibility and lightness of the packaging bag 10 can be ensured, and costs can be suppressed.

Note that the material forming the packaging bag 10 is not limited to the above-mentioned resin material such as the flexible film, but may also be a paper material (kraft paper, etc.). In addition, the materials forming the packaging bag 10 include biodegradable materials (biodegradable plastic, biodegradable paper, etc.), biomass materials (renewable organic resources derived from living organisms such as biomass film, excluding fossil resources). ) may be used.

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

The top surface 11 has edges 11A and 11B extending in the first direction (X direction) and edges 11C and 11D extending in the second direction (Y direction) (FIG. 3). The bottom surface 12 has edges 12A, 12B extending in the first direction (X direction) and edges 12C, 12D extending in the second direction (Y direction) (FIG. 4).

A seal portion 30 is formed on the edge 11A of the top surface 11 and the edge 12A of the bottom surface 12. A seal portion 40 is formed on the edge 11B of the top surface 11 and the edge 12B of the bottom surface 12 (Figs. 3 to 7). That is, in the packaging bag 10, the edge 11A of the top surface 11 and the edge 12A of the bottom surface 12 are integrated via the seal portion 30, and the edge 11B of the top surface 11 and the edge 12B of the bottom surface 12 are integrated via the seal portion 40 (Figs. 5 to 7).

The dimensions of the packaging bag 10 can be such that the length L1 in the longitudinal direction (Y direction) of the sheet packaging body 100 is 80 mm or more and 200 mm or less, the width W1 in the transverse direction (X direction) perpendicular to the longitudinal direction (Y direction) of the sheet packaging body 100 is 50 mm or more and 150 mm or less, and the height J in the height direction (Z direction) is 5 mm or more and 85 mm or less (Figures 3 and 5). Note that the dimensions of the packaging bag 10 indicate the dimensions when the sheet laminate SL is contained in the packaging bag 10 (Figures 1 and 2).

The outlet 20 is formed on the top surface 11, and the sheet S is taken out (FIG. 18). The outlet 20 opens to the top surface 11 when a portion BL of the top surface 11 of the packaging bag 10 is torn. In this embodiment, the outlet 20 is formed at a tearing score line CL (for example, a perforation) formed on the top surface 11, and when the tearing score line CL is torn, the top surface 11 of the packaging bag 10 An opening OP is formed in the opening OP, and this opening OP becomes the outlet 20 (FIGS. 1 and 18).

Note that the cleavage cut line CL is a cut line where cuts C1 and ties T1 (uncut portions between two cuts C1) are arranged alternately, and when a tie T1 is broken, the cuts C1 on both sides become continuous cuts. (Figure 1, Figure 3, Figure 8). In addition, in the cleavage score line CL, the length of the cut C1 and the length of the tie T1 are arbitrary.

In the cleavage score line CL, the length of each cut C1 can be 0.8 mm or more and 9.0 mm or less, preferably 1.5 mm or more and 8.0 mm or less, and more preferably 2.5 mm or more and 7.0 mm or less. It is as follows. Moreover, the length of each tie T1 can be 0.3 mm or more and 5.0 mm or less, preferably 0.4 mm or more and 2.0 mm or less, and more preferably 0.5 mm or more and 1.5 mm or less.

The shape of the outlet 20 is arbitrary. In this embodiment, the shape of the outlet 20 is semi-elliptical in plan view. Specifically, the outlet 20 extends from the end 20A on the edge 11B side of the top surface 11 to the end 20B, and is formed so as to be convex from the edge 11B of the top surface 11 toward the center 11E (FIGS. 1, 3, and 8).

Here, the central portion 11E of the top surface 11 includes the center (centroid) G of the top surface 11 and represents an area approximately one-tenth to one-fifth of the entire top surface 11. Thereby, the outlet 20 is formed on the edge 11B side in the second direction (Y direction) (FIG. 3).

Note that the interval L2 between the outlet ports 20 in the second direction (Y direction) is 15% or more and 60% or less, preferably 20%, of the length L1 of the packaging bag 10 in the second direction (Y direction). It is 55% or less, more preferably 25% or more and 50% or less. Further, the interval W2 between the outlet ports 20 in the first direction (X direction) is 50% or more and 90% or less, preferably 60% or more and 85% of the width W1 of the packaging bag 10 in the width direction (X direction). % or less, more preferably 70% or more and 80% or less (FIG. 3).

The sheet package 100 of this embodiment further includes a lid 50. The lid body 50 is formed by a part BL of the opened top surface 11, and closes the outlet 20 in a resealable manner. Here, closing the outlet 20 in a resealable manner means that the lid 50 closes the open outlet 20 (opening OP) (FIGS. 1, 3, 18, and 20).

The lid body 50 has a first edge 51 and a second edge 52. The first edge 51 is connected to the top surface 11 and extends in the first direction (X direction). The second edge 52 is not connected to the top surface 11 and extends from one end 20A of the first edge 51 to the other end so as to be convex in a second direction (Y direction) intersecting the first direction (X direction). It extends to the terminal end 20B.

The first edge 51 connected to the top surface 11 constitutes a fixed end 51 of the lid body 50 that is connected to the top surface 11 with the outlet 20 (OP) open. The first edge 51 of the lid 50 that constitutes this fixed end corresponds to the edge 20D on the seal portion 40 side of the outlet 20, which is the base end when opening or closing the outlet 20 (see FIG. 3, Figure 8). The edge 20D of the outlet 20 is formed on the inner end 41 of the sealing part 40, and the first edge 51 of the lid 50 (the edge 20D of the outlet 20) is formed on the inner end 41 of the sealing part 40. It is fixed (Fig. 3, Fig. 8, Fig. 18 to Fig. 20).

The second edge 52 that is not connected to the top surface 11 constitutes a free end 52 of the lid body 50 that is not connected to the top surface 11 when the outlet 20 is open. Note that the second end edge 52 extends convexly from one end 20A of the first end edge 51 to the other end 20B of the first end edge 51. , and protrudes in a direction (Y direction) away from the first end edge 51 in a plan view (FIGS. 3 and 8).

In the sheet package 100 of the present embodiment, the lid 50 is optionally provided with a first press-processed portion 60 extending in the first direction (X direction) along the first edge 51. Note that the pressed portion is a portion that is deformed under pressure by pressing a mold or the like against a portion BL of the top surface 11 that becomes the lid 50. Since such a press-processed portion is formed on the lid body 50 by pressing, the work of forming the press-processed portion is easy (FIGS. 1, 3, and 8).

In this embodiment, the first press-processed portion 60 is formed on the lid body 50 by pressure deformation, but instead of the press-processed portion, a thermally deformed portion formed by heat deformation (pressing a heated mold against it to cause thermal deformation) may be provided.

In the present embodiment, the first pressing part 60 is arranged near the first edge 51 of the lid 50 connected to the top surface 11 51A (closer to the first edge 51 on the sealing part 40 side). Specifically, the first press processing part 60 is arranged parallel to the first edge 51 of the lid body 50 at a position where the distance L3 away from the seal part 40 in the second direction (Y direction) is about 1 mm. (Figure 1, Figure 3, Figure 8).

Note that the distance L3 between the seal portion 40 and the first pressing portion 60 is not limited to the distance in this embodiment. For example, the distance L3 between the seal portion 40 and the first press processing portion 60 is 0.5% or more and 20% or less, preferably 1 % or more and 15% or less, more preferably 2% or more and 10% or less (FIG. 3).

Further, the length W3 of the first pressing part 60 in the first direction (X direction) is not limited to the distance in this embodiment. For example, the length W3 of the first pressing part 60 is 65% or more and 100% or less, preferably 70% or more and 100% or less, with respect to the interval W2 between the outlet ports 20 in the first direction (X direction). More preferably, it is 75% or more and 100% or less (FIG. 3).

In the present embodiment, the length W3 of the first pressing portion 60 in the first direction (X direction) is shorter than the interval W2 of the outlet 20 in the first direction (X direction). Specifically, the end portion 61 of the first press-processed portion 60 is located on the end edge 11C side of the top surface 11 and is spaced inward from the second end edge 52 of the lid body 50. Further, the end portion 62 of the first press-processed portion 60 is located away from the second end edge 52 of the lid body 50 on the end edge 11D side of the top surface 11 (FIGS. 1, 3, and 3). 8).

Note that the length W3 of the first pressing portion 60 in the first direction (X direction) may be the same as the interval W2 of the outlet 20 in the first direction (X direction). In addition, from the viewpoint of facilitating the positioning of the first pressing part 60, the length W3 of the first pressing part 60 in the first direction (X direction) is equal to the interval W2 of the outlet 20 in the first direction (X direction). The first press-processed portion 60 may be provided so as to be longer.

In the sheet packaging body 100 of the present embodiment, a second pressing portion 70 further extending in the second direction (Y direction) is formed on the lid body 50, although this is optional. Specifically, the second press-processed part 70 extending in the direction (Y-direction) intersecting the direction in which the first press-processed part 60 extends (X-direction) is arranged on the lid body 50. The end 71 of the second pressing part 70 is arranged on the first edge 51 side (closer to the first pressing part 60) of the lid 50, and the end 72 of the second pressing part 70 is located on the side of the first edge 51 of the lid 50 (closer to the first pressing part 60). It is arranged on the second end edge 52 side of the body 50 (at a position away from the first pressing part 60) (FIGS. 1, 3, and 8).

In this embodiment, the second press-processed part 70 is formed on the lid body 50 by pressure deformation, but instead of the press-processed part, heat deformation (heat deformation by pressing a heated mold) is used. A thermally deformable portion formed by the above may be provided.

Note that the length L4 of the second pressing portion 70 in the second direction (Y direction) is not limited to the distance in this embodiment. For example, the length L4 of the second pressing part 70 is 30% or more and 100% or less, preferably 50% or more and 100% or less, with respect to the interval L2 between the outlet ports 20 in the second direction (Y direction). More preferably, it is 60% or more and 100% or less (FIG. 3).

Note that in the present embodiment, the end 71 of the second pressing part 70 is not connected to the first pressing part 60; however, the end 71 of the second pressing part 70 is connected to the first pressing part 60. It may be connected. In addition, in the present embodiment, the end 72 of the second pressing part 70 is not connected to the second edge 52 of the lid 50, but the end 72 of the second pressing part 70 is It may be connected to the second edge 52.

The sheet package 100 of this embodiment has an adhesive seal 80 fixed to the lid 50 and adhered to the top surface 11. The adhesive seal 80 is a seal that adheres to the outer top surface 11 of the lid 50 while being fixed to the lid 50, and has a fixed part 81, an adhesive part 82, and a free end part 83 (FIG. 1, 3, FIG. 8, FIG. 9 to FIG. 12, FIG. 16 to FIG. 20).

In the adhesive seal 80, the fixing part 81 is fixed to the second end edge 52 side of the lid body 50. Specifically, the fixing portion 81 is fixed to the lid 50 along a portion 52A of the second edge 52 so as to cover the portion 52A of the second edge 52. Note that a portion 52A of the second edge 52 corresponds to the tip 20C of the outlet 20 (FIGS. 3 and 8). Further, the interval L6 between the fixing parts 81 in the second direction (Y direction) is 10% or more and 70% or less, preferably 20%, of the interval L5 between the adhesive seals 80 in the second direction (Y direction). It is 60% or less, more preferably 30% or more and 50% or less (FIG. 3, FIG. 9).

The adhesive part 82 is removably attached to the top surface 11 adjacent to the fixing part 81 (FIGS. 9 to 20). Note that the expression "removably attached to the top surface 11" means that the adhesive part 82 can be peeled off from the state where it is adhered to the top surface 11, and is again adhered to the top surface 11 from the peeled state (see FIG. , Fig. 18, Fig. 20). Moreover, the interval L7 between the adhesive parts 82 in the second direction (Y direction) is 5% or more and 65% or less, preferably 15% with respect to the interval L5 between the adhesive stickers 80 in the second direction (Y direction). It is 55% or less, more preferably 25% or more and 45% or less (FIG. 9).

The free end portion 83 is not fixed to the lid body 50 adjacent to the adhesive portion 82 (FIGS. 9 to 20). Specifically, the free end portion 83 indicates a portion of the adhesive seal 80 that can constitute a handle of the adhesive seal 80 that is neither fixed nor adhered to the lid 50 (see FIGS. 1, 3, 8, and 8). 9 to Fig. 12, Fig. 16 to Fig. 20). Further, the interval L8 between the free end portions 83 in the second direction (Y direction) is 5% or more and 65% or less, preferably 15% or more, with respect to the interval L5 between the adhesive seals 80 in the second direction (Y direction). % or more and 55% or less, more preferably 25% or more and 45% or less (FIG. 9).

Note that the shape of the free end portion 83 is arbitrary, but in this embodiment, the edge (edge 83B) of the free end portion 83 on the side away from the adhesive portion 82 is shaped in the second direction (Y direction). It is convex toward the side away from the adhesive part 82. Here, being convex toward the side away from the adhesive part 82 in the second direction (Y direction) means that the edge (edge 83B) of the free end part 83 on the side away from the adhesive part 82 is convex in the second direction (Y direction). It shows that it tapers toward the side away from the adhesive part 82 in the Y direction).

The form of the adhesive seal 80 is not limited, and for example, the fixing part 81 is coated with the adhesive G1 on the base material BM, and the adhesive part 82 is coated with the adhesive G2, which has a weaker adhesive force than the fixing part 81. , and a free end portion 83 to which neither of these adhesives G1 and G2 is applied can be used (FIGS. 10 to 12). In this case, the portion of the base material BM to which the adhesives G1 and G2 are not applied constitutes the free end portion 83 (FIGS. 10 to 12).

Note that adhesives having the same adhesive strength may be used for the fixing part 81 and the adhesive part 82. Alternatively, the free end portion 83 may be coated with the same adhesive as the fixing portion 81 and the adhesive portion 82, and then varnish may be applied over it to lose its adhesive properties, or the adhesive may be applied from the beginning. It may be configured without coating.

The fixed portion 81 of the adhesive seal 80 is surrounded by edges 81A, 81B, 81C, and 81D. Further, the adhesive portion 82 is surrounded by edges 82A, 82B, 82C, and 82D. Furthermore, the free end 83 is surrounded by edges 83A, 83B (FIG. 9). Note that the edge 81D of the fixing part 81 and the edge 82A of the adhesive part 82 constitute a boundary E1 between the fixing part 81 and the adhesive part 82 (FIG. 10). Furthermore, the edge 82D of the adhesive portion 82 and the edge 83A of the free end portion 83 constitute a boundary E2 between the adhesive portion 82 and the free end portion 83 (FIG. 10).

Note that the material of the base material is not limited, but resin materials such as flexible films used in the above-mentioned packaging bag 10, paper materials, biodegradable materials, biomass materials, etc. can be used. Moreover, the form of the base material is not limited, and a single layer film, a laminate film, and a mixed film used for the above-mentioned packaging bag 10 can be used. Furthermore, the thickness of the base material can be the same as the thickness of the flexible film used in the packaging bag 10 described above.

Further, the material of the adhesive G1 of the fixing part 81 is not limited, but it is preferably an adhesive having an adhesive force of 2 N/25 mm or more and 6 N/25 mm or less. Further, the material of the adhesive G2 of the adhesive part 82 is not limited, but it is preferably a material with an adhesive force of 2 N/6 mm or more and 8 N/25 mm or less. Here, the adhesive force refers to a peel resistance value measured by an adhesive force test method based on JIS Z0237.

In addition, in this embodiment, the tip 20C of the outlet 20 is configured with a continuous score line. Here, the fact that the tip 20C is constituted by a score line indicates that a portion 52A of the second edge 52 of the lid body 50 that constitutes the tip 20C is cut in advance. Specifically, a part (tip 20C) of the tearing cut line CL constituting the outlet 20 corresponds to a part 52A of the second edge 52 of the lid body 50, and the cut C2 and the tie T2 ( (Uncut portions lined up on both ends of one cut C2) are arranged in advance alternately, and a portion 52A of the second end edge 52 of the lid body 50 that constitutes the tip 20C corresponds to this cut C2 ( Figure 8).

In the part of the tearing cut line CL corresponding to the tip 20C of the outlet 20 (part 52A of the second edge 52 of the lid 50), the length of the cut C2 and the length of the tie T2 are arbitrary. For example, the length of the cut C2 can be 10 mm or more and 30 mm or less, preferably 13 mm or more and 27 mm or less, and more preferably 16 mm or more and 25 mm or less. Also, the length of each tie T2 can be 0.3 mm or more and 5.0 mm or less, preferably 0.4 mm or more and 2.0 mm or less, and more preferably 0.5 mm or more and 1.5 mm or less.

In the sheet package 100 of this embodiment, the interval W5 of the tip 20C in the first direction (X direction) is shorter than the width W4 of the adhesive seal 80 in the first direction (X direction) (FIGS. 3 and 8). . Here, the width W4 of the adhesive seal 80 in the first direction (X direction) indicates the range of the adhesive seal 80 extending in the first direction (X direction). The distance W5 in the first direction (X direction) of the tip 20C is the distance from one end 52B to the other end 52C along the first direction (X direction) of a portion 52A of the second edge 52 constituting the tip 20C. Distance W5 is shown. Note that the interval W5 of the tip 20C in the first direction (X direction) corresponds to the length of the cut C2 of a part of the tearing score line CL along the first direction (X direction) (FIG. 8).

Note that the interval W5 of the tip 20C in the first direction (X direction) is arbitrary, but is 75% or more and 99% or less with respect to the width W4 of the adhesive seal 80 in the first direction (X direction), Preferably it is 80% or more and 95% or less, more preferably 85% or more and 90% or less. In this embodiment, for example, the width W4 of the adhesive seal 80 in the first direction (X direction) is about 25 mm, and the interval W5 between the tips 20C in the first direction (X direction) is about 22 mm.

Moreover, in this embodiment, the end 72 of the second press processing part 70 on the second edge 52 side is not covered with the adhesive seal 80 (FIGS. 1, 3, and 8). Here, the end 72 of the second press processing part 70 on the second edge 52 side is located on the opposite side to the end 71 of the second press processing part 70 located on the first edge 51 side of the lid body 50. The end portion 72 of the second pressing portion 70 is shown. In addition, the end portion 72 of the second press-processed portion 70 on the second edge 52 side is not covered with the adhesive seal 80. Indicates that it is placed.

In the sheet packaging body 100 of this embodiment, a third press-processed part 90 is formed on the free end 83 of the adhesive seal 80 by processing a part of the free end 83 (FIG. 1). , Fig. 3, Fig. 8 to Fig. 12). The third pressed portion 90 indicates a portion of the adhesive seal 80 that has been altered in quality. The third press processing section 90 is an example of a processing section formed at the free end of the adhesive seal of the sheet package according to the present embodiment.

In this embodiment, a pressed portion is formed in the adhesive seal 80 by pressure deformation, but instead of a pressed portion, a pressed portion is formed by heat deformation (by pressing a heated mold to thermally deform). The thermally deformed portion may be provided as a processed portion.

Further, the aspect of the third press processing section 90 is not limited to this embodiment, and for example, the third press processing section 90 may be composed of a plurality of dots (not shown). Here, the expression that the third press-processed portion 90 is composed of a plurality of dots means that the third press-processed portion 90 is composed of a set of discontinuous points.

Further, although not shown, the third pressing portion 90 may have a given width in the second direction (Y direction). Here, having a given width in the second direction (Y direction) means that the third pressed portion 90 extending in the first direction (X direction) expands in the second direction (Y direction).

The width of the third pressing part 90 is arbitrary, but is preferably 5% or more and 100% or less with respect to the interval L8 between the free ends 83 of the adhesive seal 80 in the second direction (Y direction). It is 60% or more and 100% or less, more preferably 80% or more and 100% or less. In addition, when the third press processing part 90 has a given width, it is preferable to provide it in a substantially central region of the free end part 83.

In this embodiment, the third pressing part 90 is arranged on the adhesive part 82 side of the free end part 83 and extends linearly in the first direction (X direction). Here, the adhesive portion 82 side of the free end portion 83 refers to the portion of the free end portion 83 adjacent to the adhesive portion 82 that is closer to the adhesive portion 82 (edge 83A side) (FIGS. 3, 8, and 9). ).

Although not shown, the third pressing part 90 is placed on the side of the free end 83 away from the adhesive part 82 (the end) instead of being placed on the adhesive part 82 side of the free end 83. It may be arranged on the edge 83B side). Further, the third pressing part 90 may be arranged on the adhesive part 82 side of the free end part 83 and then further arranged on the side of the free end part 83 away from the adhesive part 82 (edge 83B side). . In this case, the third pressing portion 90 may be arranged along the edge (edge 83B) of the free end portion 83 on the side away from the adhesive portion 82.

Moreover, the third pressing part 90 extending in the first direction (X direction) means that it extends parallel to the direction in which the first edge 51 of the lid body 50 extends, and intersects with the direction in which the second edge 52 is convex. It is shown that a third pressed part 90 extending in the direction shown in FIG.

In addition, in this embodiment, the length W6 of the third pressing part 90 is shorter than the width W4 of the adhesive seal 80 in the first direction (X direction). Specifically, the end portion 91 of the third press processing portion 90 is arranged inside the adhesive seal 80 on the edge 11C side of the top surface 11. Further, the end portion 92 of the third pressing portion 90 is arranged inside the adhesive seal 80 on the edge 11D side of the top surface 11 (FIGS. 1, 3, and 8 to 10).

The length W6 of the third pressed portion 90 may be the same as the width W4 of the adhesive seal 80 in the first direction (X direction). In this embodiment, the length W6 of the third pressed portion 90 is the same dimension as the spacing W5 of the tip 20C in the first direction (X direction), but the length W6 of the third pressed portion 90 may be longer or shorter than the spacing W5 of the tip 20C.

In the sheet package 100 according to the present embodiment, at least a part of the edge (edge 83B) of the free end 83 on the side away from the adhesive part 82 has a wavy U shape. Here, the waveform U shows a shape in which peaks B and troughs D are repeated and successive (FIG. 13).

The side of the free end portion 83 away from the adhesive portion 82 refers to the side of the free end portion 83 adjacent to the adhesive portion 82 that is opposite to the adhesive portion 82 side (edge 83A side) (edge 83B side). At least a part of the edge of the free end 83 on the side away from the adhesive part 82 refers to all or part of the edge of the free end 83 on the side away from the adhesive part 82.

In the sheet package 100 according to the present embodiment, the peaks B or troughs D of the waveform U forming the edge 83A of the free end 83 are curved. Specifically, waveform U is a sine wave. Here, the curved peak B indicates that the drawn line of the peak B is a curve. Further, a sine wave refers to a sinusoidal waveform having a constant period (wavelength) and amplitude, or a waveform similar to this (FIG. 13).

In the sheet package 100 of this embodiment, the period P of the waveform U is 0.1 mm or more and 6 mm or less. Here, the period P of the waveform U indicates the distance P between two adjacent peaks B (peaks B1, B2) or the distance P between the troughs D (ends D1, D2) of the waveform U. The fact that the period P of the waveform U is 0.1 mm or more and 6 mm or less indicates that the scale of the waveform U is minute (FIGS. 1, 3, 8, and 13).

In the sheet package 100 of this embodiment, the period P of the waveform U is twice or more the wave height H of the waveform U. Here, the wave height H of the waveform U indicates the vertical distance H from the top of the peak B of the waveform U to the bottom of the trough D (FIGS. 1, 3, 8, and 13). In this embodiment, as the waveform U forming the edge 83A of the free end portion 83 of the adhesive seal 80, a waveform U1 in which the period P1 is approximately twice the wave height H1 can be adopted (FIG. 13).

Further, as the waveform U, a waveform U2 in which the period P2 is approximately five times the wave height H2 can be adopted (FIG. 14). Further, as the waveform U, a waveform U3 in which the period P3 is approximately 10 times the wave height H3 can be adopted (FIG. 15).

The wave height H of the waveform U is preferably 0.03 mm or more and 2 mm or less, more preferably 0.05 mm or more and 1.5 mm or less, and still more preferably 0.1 mm or more and 0.8 mm or less. Note that the fact that the wave height H of the waveform U is in the range of 0.03 mm or more and 2 mm or less indicates that the scale of the waveform U is minute.

The effects of the first embodiment will be described below. In the first embodiment, as described above, the portion BL of the torn top surface 11 constitutes the lid 50 that closes the outlet 20 (OP) in a resealable manner, and therefore the outlet 20 (OP) can be closed, making it difficult for dirt, dust, etc. (hereinafter, referred to as dust) to enter the packaging bag 10 from the outlet 20 (OP). As a result, in this embodiment, the sheet packaging body 100 can be used hygienically (Figure 20).

In this embodiment, the first edge 51 of the lid 50 is connected to the top surface 11, so that the lid 50, which constitutes the part BL of the torn top surface 11, is not separated from the packaging bag 10. This becomes a small piece BL connected to the top surface 11. Therefore, in this embodiment, it is possible to prevent fragments (such as pieces cut off from the packaging bag 10) from being generated when the outlet 20 is unsealed (or opened) (FIGS. 18 to 20).

In this embodiment, the first end edge 52 of the lid body 50 is not connected to the top surface 11 and is convex in the second direction (Y direction) intersecting the first direction (X direction). By extending from one end 20A to the other end 20B, the second end edge 52 protrudes in a direction away from the first end edge 51 in a plan view, so that the adhesive seal 80 is fixed to the second end edge 52 side. (Fig. 1, Fig. 3, Fig. 8).

In this embodiment, by forming the outlet 20 on one end edge 11B side of the top surface 11 in the second direction (Y direction), the outlet 20 can be opened on the seal portion 40 side of the top surface 11. can. Thereby, when taking out the sheet S from the take-out port 20, the sheet S can be pulled out toward the top surface 11, and can also be pulled out toward the seal portion 40 along the second direction (Y direction). Therefore, according to this embodiment, it is possible to provide a sheet package 100 that is easy to use (FIGS. 18 and 19).

In this embodiment, the outlet 20 is formed on one edge 11B side of the top surface 11 in the second direction (Y direction), so the outlet 20 is not formed on the entire top surface 11. Therefore, even after the outlet 20 is opened, the shape of the packaging bag 10 is easily maintained, and the state of accommodation of the sheets S (sheet laminate SL) within the packaging bag 10 is less likely to be disturbed. Therefore, according to this embodiment, the sheet package 100 can be used cleanly to the end (FIGS. 18 to 20).

Further, in the present embodiment, the first press-processed portion 60 extending along the first edge 51 of the lid 50 connected to the top surface 11 is formed on the lid 50, so that the outlet 20 can be unsealed. When the lid 50 is expanded in the direction of opening (or opening), the movement of the lid 50 in which the expanded lid 50 tries to return to its original state where it reseals (or closes) the extraction port 20 is slowed down (lid (delaying the closing action of the body 50). Thereby, when taking out the sheet S from the take-out port 20, the opened lid body 50 can be maintained in a state separated from the take-out port 20 (FIGS. 18 and 19). Therefore, according to the present embodiment, it is easy to take out the sheet from the take-out port (the taking out property is good).

The movement of the lid 50 to return to its original state is considered to be a movement of the lid 50 due to elastic stress (hereinafter referred to as stress) generated inside the lid 50 by an external force applied to the lid 50. . One of the reasons why the closing operation of the lid 50 is delayed is that the elastic stress distribution generated inside the lid 50 is discontinuously or partially relaxed by the pressing part (hereinafter referred to as stress relaxation). Conceivable.

In addition, as shown in FIG. 19, the ease of taking out the sheet is determined by changing the angle of the lid 50 in the sheet packaging body 100 so that the lid is moved approximately in the direction in which the top surface 11 of the packaging bag 10 is opened and the extraction port 20 is opened. The evaluation can be made by measuring the angle θ of the lid 50 when it is unfolded 180° and left for about 3 seconds. The angle θ is the angle of the unfolded lid 50 with respect to the top surface 11 (FIG. 19). When the angle θ is 90° or more, it can be determined that the unfolded lid body 50 is maintained away from the extraction port 20 (OP) and the extraction performance is good.

With such a configuration, in this embodiment, even if the lid 50 that blocks the outlet 20 (OP) is provided, the lid 50 does not get in the way when taking out the sheet S from the outlet 20 (OP). (Fig. 18, Fig. 19). Therefore, according to the present embodiment, it is possible to provide the sheet package 100 in which the sheet S can be easily taken out.

In this embodiment, the lid 50 that resealably closes the outlet 20 (OP) has a first press-processed portion 60 extending along the first edge 51 of the lid 50 connected to the top surface 11. By having this, when opening the outlet 20, the lid body 50 can be easily bent along the first pressing part 60. As a result, the lid 50 is expanded with the vicinity 51A of the first edge 51 of the lid 50 connected to the top surface 11 as the base end, and the outlet 20 is easily maintained in an open state. The sheet S can be easily taken out from the sheet 20 (OP) (FIGS. 18 and 19).

In this embodiment, by forming the second pressing part 70 on the lid 50, the shape of the lid 50 is maintained when the extraction port 20 is unsealed (or opened), so that the sheet S can be taken out. (Fig. 1, Fig. 3, Fig. 8, Fig. 18, Fig. 19). Furthermore, by maintaining the shape of the lid 50, it is possible to reduce the gap that occurs between the outlet (OP) and the lid 50 when the outlet 20 (OP) is resealed (or closed). Therefore, it is possible to prevent dust from entering into the packaging bag 10 at the time of resealing (or closing) (FIG. 20).

In addition, since the second pressing part 70 extending in the second direction (Y direction) is formed on the lid body 50, the packaging bag 10 is formed of a resin film, and the second direction (Y direction) is formed of the resin film. Even in the stretching direction (flow direction), the lid body 50, which is made up of the part BL of the top surface 11 of the packaging bag 10, is suppressed from shrinking or curling. Therefore, according to the present embodiment, it is possible to provide a practical sheet package 100 in which the shape of the lid 50 is maintained when the outlet 20 is unsealed (or opened) (FIGS. 1, 3, Fig. 8, Fig. 18, Fig. 19).

Furthermore, in the present embodiment, the adhesive seal 80 that adheres to the top surface 11 is fixed to the lid 50, so that the adhesive seal 80 constitutes a trigger TG for opening the outlet 20 of the top surface 11. can do. When the adhesive seal 80 constituting the trigger TG is peeled off from the top surface 11, the extraction port 20 is cleaved in the top surface 11 and the extraction port 20 is opened in the top surface 11, while the part of the top surface 11 that has been torn is BL. can constitute the lid body 50. Thereby, the outlet 20 can be opened without pressing the top surface 11 of the packaging bag 10. Therefore, in this embodiment, it is possible to prevent the sheet S from being torn when the outlet 20 is opened (FIGS. 1, 3, 8, 18, and 19).

In this embodiment, since such an adhesive seal 80 is provided on the lid body 50, the lid body 50 can be attached to the lid body 50 through the adhesive seal 80 while the outlet 20 (OP) is resealed (or closed). can be adhered to the top surface 11. Thereby, resealing (or closing) of (OP) using the lid body 50 is easy. Moreover, with such a configuration, the shape of the packaging bag 10 is easily maintained with the outlet 20 closed, and the state of accommodation of the sheets S (sheet stacked body SL) within the packaging bag 10 is not easily disturbed. Furthermore, since the lid body 50 is maintained in a resealed (or closed) state, it is possible to prevent dust from entering into the packaging bag 10 from the resealed (or closed) outlet 20 (OP) (Fig. 18, Figure 20).

Note that by providing such an adhesive seal 80 on the lid body 50, there is a possibility that the sheet S will stick to the adhesive seal 80 when the sheet S is taken out from the outlet 20 (OP). However, in the present embodiment, the first press-processed portion 60 extending along the first edge 51 of the lid 50 connected to the top surface 11 is formed on the lid 50, so that the expanded lid 50 Since the movement of the lid body 50 that attempts to return to the original state of closing the outlet 20 (OP) can be slowed down, the lid body 50 is less likely to get in the way. Therefore, in this embodiment, even when the adhesive seal 80 is provided on the lid 50, the sheet S is difficult to stick to the adhesive seal 80 (FIGS. 18 and 19).

In the present embodiment, the tip 20C that constitutes a portion 52A of the second edge 52 of the lid body 50 is configured with a continuous score line (cut C2), so that the tip 20C is cut in advance. Even if 20C is covered with the adhesive seal 80, a portion BL of the top surface 11 of the packaging bag 10 is likely to tear when the outlet 20 is opened (FIG. 8). Therefore, in the present embodiment, when the outlet 20 is opened, the top surface 11 of the packaging bag 10 unexpectedly appears around the tip 20C that constitutes a portion 52A of the second edge 52 covered with the adhesive seal 80. It is possible to suppress tearing in some parts (FIGS. 1, 3, 8, 18, and 19).

In the present embodiment, since the end 72 of the second pressing part 70 on the second edge 52 side is not covered with the adhesive seal 80, the fixing part 81 of the adhesive seal 80 and the second The adhesion force with the end edge 52 is less likely to decrease. Therefore, in this embodiment, the adhesive seal 80 is not peeled off from the lid body 50 when the outlet 20 is opened (or opened) or resealed (or closed) (hereinafter referred to as when the outlet 20 is opened or closed). (Fig. 1, Fig. 3, Fig. 8).

Note that in order to prevent the end portion 72 of the second press-processed portion 70 on the second edge 52 side from being covered with the adhesive seal 80, the second press-processed portion 70 must be shortened. This may make it difficult to maintain the shape of the lid 50 when the outlet 20 is opened. However, in this embodiment, the second end edge 52 of the lid body 50, which becomes a free end not connected to the top surface 11 and easily deforms after the outlet 20 is unsealed (or opened), is fixed with the adhesive seal 80. Therefore, in the present embodiment, even after unsealing (or opening) the outlet 20, the second pressing part 70 formed on the lid 50 and the fixing part 81 of the adhesive seal 80 fixed to the lid 50 are The shape of the lid body 50 can be maintained synergistically (FIGS. 1, 3, 8, 18, and 19).

In this embodiment, since the adhesive seal 80 has the free end portion 83, the adhesive seal 80 is easily grasped, and the outlet 20 is unsealed or opened or resealed or closed (hereinafter referred to as opening and closing of the outlet 20). (Fig. 1, Fig. 3, Fig. 8 to Fig. 12, Fig. 16 to Fig. 20).

In this embodiment, by providing the third pressed part 90 on the free end 83 of the adhesive seal 80, the third pressed part 90 becomes a mark, making it easier to identify the free end 83 of the adhesive seal 80. . Further, the free end portion 83 of the adhesive seal 80 is easily deformed by the third pressing portion 90 when it is pinched as a handle. Further, since a frictional force is applied to the third press-processed portion 90 provided on the free end portion 83, the free end portion 83 becomes easier to grip as a handle. Therefore, in this embodiment, opening and closing of the outlet 20 becomes easy (FIGS. 1, 3, 8 to 12, and 16 to 20).

In this embodiment, the free end 83 of the adhesive seal 80 is bent along the third pressing part 90 by providing the third pressing part 90 extending in the first direction (X direction) on the free end part 83. It becomes easier. As a result, in this embodiment, the free end portion 83 of the adhesive seal 80 can be easily pinched, making it easier to open and close the outlet 20 (FIGS. 1, 3, 8 to 12, and 16 to 20). .

In this embodiment, by providing the linear third pressing part 90 on the free end part 83 of the adhesive seal 80, the free end part 83 of the adhesive seal 80 is linearly shaped along the third pressing part 90. Since it can be bent, the free end 83 of the adhesive seal 80 can be stably pinched (FIGS. 1, 3, 8 to 12, and 16 to 20).

In this embodiment, by arranging the third press processing part 90 on the adhesive part 82 side (edge 83A side) of the free end part 83, the part of the free end part 83 of the adhesive seal 80 that can be pinched can be made wider. Thereby, in this embodiment, the free end portion 83 of the adhesive seal 80 can be pinched more stably (FIGS. 1, 3, 8 to 12, and 16 to 20).

Furthermore, in the present embodiment, the edge (edge 83B) of the free end portion 83 on the side away from the adhesive portion 82 is convex toward the side away from the adhesive portion 82 in the second direction (Y direction). Since the free end portion 83 of the adhesive seal 80 is easily turned over, the adhesive seal 80 is easier to pinch. Specifically, the third pressing part 90 provided on the free end 83 of the adhesive seal 80 constitutes the fold Q, and the edge 83B of the free end 83 is moved upward (in the Z direction) from the original position R. ), the free end 83 of the adhesive seal 80 is turned up, making it easier to pinch the adhesive seal 80 (FIGS. 16 and 17).

Furthermore, since the adhesive seal 80 is easier to pinch, the free end portion 83 of the adhesive seal 80 can be stably pinched. In this embodiment, the free end 83 of the adhesive seal 80 is easily turned over, so that the free end 83 of the adhesive seal 80 is moved to the third press processing portion disposed on the adhesive part 82 side of the free end 83. It becomes easy to bend at 90, and the free end 83 of the adhesive seal 80 can be stably pinched (FIGS. 16 to 20).

Although not shown, if the third pressed part 90 is composed of a plurality of dots, the third pressed part 90 becomes more conspicuous, making it difficult to identify the free end 83 that can constitute the handle of the adhesive seal 80. becomes even easier. The portion of the free end portion 83 where the third pressed portion 90 is formed is provided with unevenness, so that the portion of the free end portion 83 of the adhesive seal 80 where the third pressed portion 90 is formed will not slip when pinched. Due to the formation of a stop (increased frictional force), the free end 83 of the adhesive seal 80 can be pinched more firmly.

Furthermore, although not shown, when the third press-processed part 90 has a given width in the second direction (Y direction), the range of the third press-processed part 90 that occupies the free end 83 of the adhesive seal 80 is increased. Therefore, the third pressed portion 90 becomes more noticeable, and the free end portion 83 that can constitute the handle of the adhesive seal 80 becomes easier to identify. Furthermore, by increasing the range of the third pressed part 90 in the free end 83 of the adhesive seal 80, the area where the third pressed part 90 of the free end 83 of the adhesive seal 80 is provided becomes larger. This makes it easier to pinch, and the free end 83 of the adhesive seal 80 can be pinched more securely.

Moreover, when the third press processing part 90 is arranged on the side away from the adhesive part 82 of the free end part 83 (edge 83B side), the third press processing part of the free end part 83 of the adhesive seal 80 Since the portion provided with 90 is easier to pinch, the free end 83 of the adhesive seal 80 can be firmly pinched. In addition, the outline of the free end portion 83 is visible, and the third press processing portion 90 is arranged along the edge (edge 83B) of the free end portion 83 on the side away from the adhesive portion 82. In this embodiment, the free end 83 of the adhesive seal 80 becomes easier to pinch.

Furthermore, in this embodiment, at least a part of the edge (edge 83B) of the free end 83 of the adhesive seal 80 on the side away from the adhesive part 82 is made into a waveform U, so that the adhesive seal 80 is free. A fingertip that touches the end 83 contacts only the peaks B or troughs D that constitute the waveform U of the edge 83B of the free end 83. Therefore, in this embodiment, when pinching the free end 83 of the adhesive seal 80 to open and close the outlet 20, it is possible to suppress the strain on the fingertips that touch the free end 83 of the adhesive seal 80. (Fig. 1, Fig. 3, Fig. 8, Fig. 9, Fig. 10, Fig. 13 to Fig. 16, Fig. 18, Fig. 20).

In this embodiment, by forming the edge 83B of the free end portion 83 of the adhesive seal 80 into a wavy U shape, the adhesive seal 80 can be easily identified when opening and closing the outlet 20 in the sheet package 100. Therefore, according to the present embodiment, the free end 83 of the adhesive seal 80 can be easily pinched with the fingertips, and the outlet 20 can be opened and closed easily (FIGS. 1, 3, 8, 9, 10, 13 to 16, 18, and 20).

In this embodiment, as described above, by making the peaks B of the waveform U into a curved shape, the fingertip touching the free end 83 of the adhesive seal 80 can be Smoothly contacts the peaks B or troughs D that make up the area. Therefore, in this embodiment, when pinching the free end 83 of the adhesive seal 80 to open and close the outlet 20, it is possible to further suppress the strain on the fingertips that touch the free end 83 of the adhesive seal 80. (Fig. 1, Fig. 3, Fig. 8 to Fig. 10, Fig. 13 to Fig. 20).

In this embodiment, as described above, by making the waveform U into a sine wave, the curved peaks B or troughs D forming the edge 83B of the free end 83 are changed to the edge 83B of the free end 83. (FIGS. 1, 3, 8 to 10, and 13 to 15). As a result, in this embodiment, the fingertip touching the free end 83 of the adhesive seal 80 smoothly touches the peak B or the valley D of the sinusoidal waveform U that constitutes the edge 83B of the free end 83. It is possible to reduce the discomfort of the fingertip that comes into contact with the edge 83B of the free end portion 83 of the adhesive seal while making contact with the adhesive seal (FIGS. 1, 3, 8 to 10, and 13 to 20).

In addition, in this embodiment, the design of the adhesive seal 80 can be enhanced by the sinusoidal waveform U, so sheet packaging is achieved by forming the edge 83B of the free end portion 83 of the adhesive seal 80 into the waveform U. Deterioration of the appearance (or appearance) of the body 100 can be suppressed (FIGS. 1, 3, 8 to 10, 13 to 18, and 20).

In this embodiment, as described above, by setting the period P of the waveform U of the edge 83B of the free end 83 of the adhesive seal 80 to 0.1 mm or more and 6 mm or less, the edge 83B of the free end 83 is The interval P between the peaks B (peaks B1, B2) or valleys D (ends D1, D2) of the waveform U that constitutes the waveform U becomes smaller. As a result, it is possible to further reduce the burden on the fingertips while reducing the discomfort of the fingertips on the edge 83B of the free end portion 83 of the adhesive seal 80 (FIGS. 1, 3, 8 to 10, 13 to 16, 18, and 20).

Furthermore, in the present embodiment, the interval P between the peaks B (peaks B1, B2) or troughs D (ends D1, D2) of the waveform U at the edge 83B of the free end 83 of the adhesive seal 80 is small. By doing so, it is possible to further suppress deterioration in the appearance (or appearance) of the sheet package 100 caused by forming the edge 83B of the free end portion 83 in the adhesive seal 80 into a wavy U shape (FIGS. 1, 3, and 3). Figures 8 to 10, Figures 13 to 16, Figure 18, Figure 20).

In this embodiment, the period P of the waveform U at the free end 83 of the adhesive seal 80 is set to at least twice the wave height H of the waveform U, so that the slope of the peak B of the waveform U that constitutes the edge 83B of the free end 83 becomes gentle. This makes the edge 83B of the free end 83 of the adhesive seal 80 smooth, further reducing the discomfort of the fingertips touching the edge 83B of the free end 83 while further reducing the strain on the fingertips (Figs. 1, 3, 8-10, 13-16, 18, 20).

Furthermore, in this embodiment, the slope of the peaks B or troughs D of the waveform U formed on the edge 83B of the free end 83 is gentle, so that the edge of the free end 83 in the adhesive seal 80 It is possible to further suppress deterioration in the appearance (or appearance) of the adhesive seal 80 in the sheet package 100 by making 83B waveform U (FIGS. 1, 3, 8 to 10, and 13 to 16). , Fig. 18, Fig. 20).

FIG. 21 is a diagram showing a first modification of the first embodiment. Note that in FIG. 21, descriptions of parts common to FIGS. 13, 14, and 15 will be omitted. In the sheet package 100 according to the first modification of the first embodiment, the waveform U (waveform U4) is a triangular wave. Here, the triangular wave has a waveform in which triangular peaks B and troughs D are alternately continuous (FIG. 21).

In this embodiment, the period P (period P4) of the triangular waveform U (waveform U4) is 0.1 mm or more and 6 mm or less. Note that the period P4 of the waveform U4 is determined by the distance P (distance P4) between two adjacent peaks B (peaks B1, B2) or the distance P(distance P4) between the troughs D (edges D1, D2) of the waveform U. distance P4) (FIG. 21).

Further, the waveform U (waveform U4) of the triangular wave is more than twice the wave height H (wave height H4) of the waveform U4. The wave height H4 of the waveform U4 indicates the vertical distance H4 from the top of the peak B to the bottom of the trough D of the waveform U (FIG. 21). Note that as another example of the triangular waveform U, a waveform U5 in which the period P5 of the waveform U5 is about three times the wave height H5 can be adopted (FIG. 22).

In the first modification of the first embodiment, by making the waveform U into a triangular wave, the triangular peaks B or troughs D forming the edge 83B of the free end 83 are changed to the edge 83B of the free end 83. (Fig. 21, Fig. 22).

As a result, in this embodiment, the fingertip that touches the free end 83 of the adhesive seal 80 contacts only the peaks B or troughs D of the triangular waveform U that constitutes the edge 83B of the free end 83. Therefore, when pinching the free end 83 of the adhesive seal 80 to open and close the outlet 20, it is possible to suppress the strain on the fingertips that touch the free end 83 of the adhesive seal 80 (see Fig. 21, Figure 22).

In addition, in this embodiment, the triangular wave U can enhance the design of the adhesive seal 80, and therefore, deterioration of the appearance (or appearance) of the sheet packaging body 100 caused by making the edge 83B of the free end portion 83 of the adhesive seal 80 into a waveform U can be suppressed (Figures 21 and 22).

FIG. 23 is a diagram showing a second modification of the first embodiment. Note that in FIG. 23, descriptions of parts common to FIGS. 13, 14, 15, 21, and 22 will be omitted. In the sheet package 100 according to the second modification of the first embodiment, the waveform U is a rectified wave. Here, the rectified wave refers to a waveform in which half of one period of a sine wave is inverted (full-wave rectified wave) or a waveform in which half of one period is zero (half-wave rectified wave) (Figure 23 ).

In this embodiment, the period P (period P6) of the waveform U (waveform U6) of the full-wave rectified wave is 0.1 mm or more and 6 mm or less. The period P6 of the waveform U6 is determined by the distance P (distance P4) between two adjacent peaks B (peaks B1, B2) or the distance P(distance P4) between the troughs D (ends D1, D2) of the waveform U. distance P6) (FIG. 23).

Further, the waveform U (waveform U6) of the full-wave rectified wave is more than twice the wave height H (wave height H6) of the waveform U6. The wave height H6 of the waveform U6 indicates the vertical distance H6 from the top of the peak B to the bottom of the trough D of the waveform U (FIG. 23). Note that as another example of the waveform U of the rectified wave, a waveform U (not shown) in which the period P of the waveform U is about three times the wave height H can be adopted.

In the second modification of the first embodiment, by making the waveform U into a rectified wave, the curved peaks B or troughs D forming the edge 83B of the free end 83 are changed to the edge of the free end 83. 83B (FIG. 23).

As a result, in this embodiment, the fingertip touching the free end 83 of the adhesive seal 80 smoothly touches the crest B or trough D of the rectified wave waveform U that constitutes the edge 83B of the free end 83. It is possible to reduce the discomfort of the fingertip that comes into contact with the edge 83B of the free end portion 83 of the adhesive seal 80 while making contact with it (FIG. 23).

In addition, in this embodiment, the design of the adhesive seal 80 can be enhanced by the waveform U of the rectified wave, so sheet packaging is achieved by forming the edge 83B of the free end portion 83 of the adhesive seal 80 into the waveform U. Deterioration in the appearance (or appearance) of the body 100 can be suppressed (FIG. 23).

FIG. 24 is a diagram showing a third modification of the first embodiment. Note that in FIG. 24, descriptions of parts common to those in FIG. 8 will be omitted. In the sheet package 100 according to the third modification of the first embodiment, a portion 52A of the second edge 52 constitutes a portion of the recessed portion 20E that is recessed toward the first edge 51 side. Here, when the part 52A of the second end edge 52 is concave toward the first end edge 51 side, it means that the part 52A of the second end edge 52 is concave toward the first end edge 51 side from the second end edge 52 side. This shows that it is depressed in plan view (Fig. 24). Specifically, the recess 20E is curved in an arc shape (FIG. 24).

In addition, when the recess 20E is arc-shaped, the radius of the circle forming the arc of the recess 20E is K/2×√2 when the interval W5 of the recess 20E in the first direction (X direction) is K (mm). Preferably, it is ±3. For example, when the interval W5 of the recess 20E in the first direction (X direction) is 21 mm, the radius of the circle constituting the recess 20E is 14.8±3 mm; This is an arc obtained by cutting out a part of the circle with an imaginary chord having an interval W5 (21 mm).

In this embodiment, a portion 52A of the second edge 52 is arranged on the first edge 51 side in the second direction (Y direction) from one end 52B to the other end 52C lined up in the first direction (X direction). A concave portion 20E is configured to curve into a convex shape. Further, a portion 52A of the second edge 52 has a pointed structure such that both ends 52B and 52C are respectively convex toward the central portion 11E of the top surface 11 in the second direction (Y direction). (Figure 24).

Further, in this embodiment, a portion 52A of the second edge 52 of the lid body 50 constitutes a part of the recess 20E of the outlet 20, and a part of the periphery (the recess 20E) of the outlet 20 to be opened is It becomes convex toward the first end edge 51 side of the lid body 50 corresponding to a portion 52A of the second end edge 52 of the lid body 50. As a result, when the sheet S is pulled out from the top surface 11, the part BL of the top surface 11 is easily bent at the portion corresponding to the second edge 52 of the lid body 50 of the outlet 20, and the sheet S to be pulled out is easily bent. Since the frictional force is relaxed, the sheet S is less likely to tear (FIG. 24).

Moreover, in this embodiment, the first end edge 51 and the second end edge 52 of the lid body 50 are configured such that the part 52A of the second end edge 52 of the lid body 50 constitutes a part of such a recess 20E. The interval L2 becomes shorter. This reduces the area of the lid 50 and makes it difficult for the lid 50 to deform when the outlet 20 is opened and closed. Therefore, when the outlet 20 is resealed (or closed), the gap created between the outlet 20 and the lid 50 can be reduced, and dust can enter the packaging bag 10 from the outlet 20 (OP). (Figure 24).

Further, as described above, a portion 52A of the second end edge 52 of the lid 50 constitutes the recess 20E, and a portion of the periphery (the recess 20E) of the opening 20 forms the second end of the lid 50. By being convex toward the first edge 51 side of the lid body 50 corresponding to a portion 52A of the edge 52, a portion of this periphery (recessed portion 20E) is connected from the adhesive portion of the adhesive seal 80 to the sheet S (sheet lamination). body SL) can be protected. Therefore, in this embodiment, when resealing (or closing) the outlet 20 (OP), it is possible to prevent the adhesive part 82 of the adhesive seal 80 from sticking to the sheet S accommodated in the packaging bag 10. Yes (Figure 24).

Furthermore, in the present embodiment, a portion 52A of the second edge 52 of the lid body 50 constitutes such a recess 20E, so that the interval L7 between the adhesive parts 82 in the second direction (Y direction) becomes longer. Thereby, the area of the adhesive part 82 becomes large, and the adhesive part 82 can be stably attached and detached. Therefore, in this embodiment, opening and closing of the outlet 20 becomes easy (FIG. 24).

In this embodiment, as described above, the interval W5 of the recess 20E in the first direction (X direction) is shorter than the width W4 of the adhesive seal 80 in the first direction (X direction), thereby forming the recess 20E. Both ends 52B and 52C of the portion 52A of the second edge 52 can be covered with the fixing portion 81 of the adhesive seal 80 (FIG. 24). Note that both ends 52B and 52C of the portion 52A of the second edge 52 have a pointed structure (ends 52B and 52C) as the starting point of the recess 20E (FIG. 24).

However, in the present embodiment, both ends 52B and 52C of a portion 52A of the second edge 52 constituting the recess 20E are covered with the fixing part 81 of the adhesive seal 80, so that the fingertips are not exposed when opening and closing the outlet 20. The outlet 20 can be opened and closed without the fingertips touching both ends 52B and 52C of the portion 52A of the second edge 52. Therefore, according to this embodiment, the burden on the fingertips when opening and closing the outlet 20 can be suppressed (FIG. 24).

In the present embodiment, the area around the portion 52A of the second edge 52 that constitutes the recess 20E is one of the portions of the lid 50 that are easily deformed. On the other hand, in this embodiment, such a easily deformable portion is fixed by the fixing portion 81 of the adhesive seal 80, so that deformation of the lid 50 can be prevented (FIG. 24).

Note that since the recessed portion 20E forming part 52A of the second edge 52 of the lid body 50 is covered with the adhesive seal 80, the adhesive strength of the adhesive seal 80 to the lid body 50 cannot be obtained, making it difficult to remove the lid. When the outlet 20 is opened and closed, the adhesive seal 80 may be peeled off from the top surface 11 of the packaging bag 10, and the area around the recessed portion 20E forming part 52A of the second edge 52 may be torn.

However, in this embodiment, by making the recess 20E that constitutes a portion 52A of the second edge 52 of the lid body 50 into an arc shape, the periphery of the portion 52A of the second edge 52 that constitutes the recess 20E. A region to which the fixing portion 81 of the adhesive seal 80 is fixed can be secured (FIG. 24). Therefore, sufficient adhesive strength to the lid 50 of the adhesive seal 80 covering the recess 20E can be obtained. Therefore, in this embodiment, even if the recess 20E is covered with the adhesive seal 80, the adhesive seal 80 can be prevented from peeling off from the lid 50 when the outlet 20 is opened and closed (FIG. 24).

In addition, in this embodiment, as described above, the arc-shaped recess 20E is a circle whose radius is K/2×√2±3 when the interval W5 of the recess 20E in the first direction (X direction) is K. It is made up of a circular arc with a part of it cut out by an imaginary chord with an interval W5. Thereby, while securing an area where the fixing part 81 of the adhesive seal 80 is fixed around the part 52A of the second edge 52 constituting the recess 20E, a part of the periphery of the outlet 20 (recess 20E) is secured. can appropriately protect the sheet S (sheet laminate SL) from the adhesive portion of the adhesive seal 80. Therefore, in this embodiment, even if the recess 20E is covered with the adhesive seal 80, the adhesive seal 80 is prevented from being peeled off from the lid body 50 when the outlet 20 is opened and closed, and the outlet 20 (OP) is re-opened. When sealing (or closing), it is possible to prevent the adhesive part 82 of the adhesive seal 80 from sticking to the sheet S housed in the packaging bag 10 (FIG. 24).

Further, as described above, by configuring the recess 20E that constitutes the part 52A of the second edge 52 of the lid body 50 with a continuous cut line (cut C2), the recess 20E is cut in advance. Even if the concave portion 20E is covered with the adhesive seal 80, a portion BL of the top surface 11 of the packaging bag 10 is likely to tear when the outlet 20 is opened (FIG. 24). Therefore, in the present embodiment, when the outlet 20 is opened, the top surface 11 of the packaging bag 10 unexpectedly appears around the recess 20E that constitutes the part 52A of the second edge 52 covered with the adhesive seal 80. It is possible to suppress tearing in some parts (FIG. 24).

FIG. 25 is a diagram showing a sheet package according to the second embodiment. Note that in FIG. 25, descriptions of parts common to those in FIG. 3 will be omitted. In the sheet package 200 of the second embodiment, the outlet 20 is formed on one edge 11C side of both edges 11C and 11D of the top surface 11 in the first direction (X direction), and The edge 51 is connected to the edge 11C side of the top surface 11, and the free end portion 83 of the adhesive seal 80 is arranged at the center portion 11E of the top surface 11 (FIG. 25).

In addition, in the second embodiment, when the material of the packaging bag 10 is a film such as a resin, the first direction (X direction) may be the direction in which the resin is flowed in resin molding (the stretching direction or flow direction of the film). preferable. Further, the second direction (Y direction) is preferably a direction perpendicular to the stretching direction or the flow direction.

In the second embodiment, the outlet 20 is formed on one edge 11C of the top surface 11 in the first direction (X direction), so that the outlet 20 can be opened on one edge 11C of the top surface 11 in the first direction (X direction). This allows the sheet S to be pulled out toward the top surface 11 when the sheet S is taken out from the outlet 20, and can also be pulled out toward one edge 11C along the first direction (X direction). Therefore, according to the second embodiment, it is possible to provide a sheet packaging body 200 that is easy to use (FIG. 25).

In the second embodiment, since the outlet 20 is formed on one end edge 11C side of the top surface 11 in the first direction (X direction), the outlet 20 is not formed on the entire top surface 11. . Therefore, even after the outlet 20 is opened, the shape of the packaging bag 10 is easily maintained, and the state of accommodation of the sheets S (sheet laminate SL) within the packaging bag 10 is less likely to be disturbed. Therefore, according to the second embodiment, the sheet package 200 can be used cleanly to the end (FIG. 25).

Also, in the second embodiment, since the first pressing part 60, the second pressing part 70, and the adhesive seal 80 are provided, similarly to the first embodiment, the first pressing part 60, the second pressing part 70, and the adhesive seal 80 are provided. Effects can be obtained by providing the two-press processing portion 70 and the adhesive seal 80 (FIG. 25).

Also, in the second embodiment, at least a part of the edge (edge 83B) of the free end 83 of the adhesive seal 80 on the side away from the adhesive part 82 is made into a waveform U, so that the adhesive seal 80 is A fingertip that touches the free end 83 contacts only the peaks B or troughs D that constitute the waveform U of the edge 83B of the free end 83. Therefore, in this embodiment, when pinching the free end 83 of the adhesive seal 80 to open and close the outlet 20, it is possible to suppress the strain on the fingertips that touch the free end 83 of the adhesive seal 80. (Figure 25).

Furthermore, in the second embodiment as well, by forming the edge 83B of the free end 83 of the adhesive seal 80 into a wavy U shape, the adhesive seal 80 can be easily identified when opening and closing the outlet 20 in the sheet packaging body 200. . Therefore, according to the present embodiment, the free end portion 83 of the adhesive seal 80 can be easily pinched with the fingertips, making it easier to open and close the outlet 20 (FIG. 25).

FIG. 26 is a diagram showing a sheet package according to the third embodiment. Note that in FIG. 26, descriptions of parts common to FIGS. 3 and 25 will be omitted. In the sheet packaging body 300 of the third embodiment, the outlet 20 is formed in the center portion 11E of the top surface 11, and the first edge 51 of the lid body 50 is connected to the edge 11C side of the top surface 11. A free end 83 of the seal 80 is arranged on the edge 11D side of the top surface 11 (FIG. 26).

In addition, in the third embodiment, when the material of the packaging bag 10 is a film such as a resin, the first direction (X direction) may be the direction in which the resin is flowed in resin molding (the stretching direction or flow direction of the film). preferable. Further, the second direction (Y direction) is preferably a direction perpendicular to the stretching direction or the flow direction.

In the third embodiment, since the outlet 20 is formed in the central portion 11E of the top surface 11, the outlet 20 is not formed in the entire top surface 11. Therefore, even after the outlet 20 is opened, the shape of the packaging bag 10 is easily maintained, and the state of accommodation of the sheets S (sheet laminate SL) within the packaging bag 10 is less likely to be disturbed. Therefore, according to the third embodiment, the sheet package 300 can be used cleanly to the end (FIG. 26).

Further, in the third embodiment, by forming the outlet 20 in the center portion 11E of the top surface 11, the outlet 20 can be opened in the center portion 11E of the top surface 11. Thereby, when taking out the sheet S from the take-out port 20, the sheet S can be pulled out from the center portion 11E of the top surface 11. Therefore, according to the third embodiment, it is easy to take out the sheet S from the take-out port 20, and the sheet S can be taken out stably from the take-out port 20 (FIG. 26).

Also, in the third embodiment, since the first pressing part 60, the second pressing part 70, and the adhesive seal 80 are provided, similarly to the first embodiment, the first pressing part 60, the second pressing part 70, and the adhesive seal 80 are provided. Effects can be obtained by providing the two-press processing portion 70 and the adhesive seal 80 (FIG. 26).

Also, in the third embodiment, at least a part of the edge (edge 83B) of the free end 83 of the adhesive seal 80 on the side away from the adhesive part 82 is made into a waveform U, so that the adhesive seal 80 is A fingertip that touches the free end 83 contacts only the peaks B or troughs D that constitute the waveform U of the edge 83B of the free end 83. Therefore, in this embodiment, when pinching the free end 83 of the adhesive seal 80 to open and close the outlet 20, it is possible to suppress the strain on the fingertips that touch the free end 83 of the adhesive seal 80. (Figure 26).

Furthermore, in the second embodiment as well, by forming the edge 83B of the free end 83 of the adhesive seal 80 into a wavy U shape, the adhesive seal 80 can be easily identified when opening and closing the outlet 20 in the sheet package 300. . Therefore, according to the present embodiment, the free end portion 83 of the adhesive seal 80 can be easily pinched with the fingertips, making it easier to open and close the outlet 20 (FIG. 26).

Although the embodiments of the present invention have been described above, the present invention is not limited to specific embodiments, and various modifications and changes can be made within the scope of the invention described in the claims. .

100, 200, 300 Sheet packaging S Sheet F Fold SL Sheet laminate LD Lamination direction 10 Packaging bag 10A, 10B End 11 Top surface BL Part (small piece)
11A, 11B, 11C, 11D Edge 11E Center G Center (centroid)
12 Bottom 12A, 12B, 12C, 12D Edge 20 Outlet CL Cleavage line C1, C2 Cut T1, T2 Tie OP Opening 20A, 20B End 20C Tip 20D Edge 20E Recess (part of periphery)
30 Seal part 31 Inner end 32 Outer end 40 Seal part 41 Inner end 42 Outer end 50 Lid body 51 First edge 51A vicinity 52 Second edge 52A Part 52B End 52C End 60 First press processing part 61, 62 End Part 70 Second press processing part 71, 72 End part 80 Adhesive seal TG Trigger 81 Fixed part 81A, 81B, 81C, 81D Edge 82 Adhesive part 82A, 82B, 82C, 82D Edge 83 Free end part 83A, 83B Edge Edge BM Base material G1, G2 Adhesive E1, E2 Boundary U, U1, U2, U3, U4, U5, U6 Waveform B, B1, B2 Peak D, D1, D2 Valley P, P1, P2, P3, P4 , P5, P6 Period H, H1, H2, H3, H4, H5, H6 Wave height Q Fold R Original position 90 Third pressing section 91, 92 End L1, L4 Length L2, L3, L5, L6, L7, L8 Spacing W1, W4 Width W2, W5 Spacing W3, W6 Length J Height

Claims (8)

a packaging bag that accommodates a plurality of stacked sheets;
an outlet that opens in the top surface when a portion of the top surface of the packaging bag is torn;
a lid body formed by a part of the opened top surface and resealably closes the outlet;
an adhesive seal fixed to the lid body and adhered to the top surface,
The lid body is
a first edge connected to the top surface and extending in a first direction;
a second edge that is not connected to the top surface and extends from one end of the first edge to the other end so as to be convex in a second direction intersecting the first direction;
The adhesive seal is
a fixing part fixed to the second edge side of the lid;
an adhesive part adjacent to the fixing part and removably attached to the top surface;
a free end adjacent to the adhesive part and not fixed to the lid;
At least a part of the edge of the free end on the side away from the adhesive part is wavy;
A sheet packaging body , wherein a processed portion is formed in the free end portion by processing a part of the free end portion to alter its quality . The sheet packaging body according to claim 1, wherein the corrugated peaks or valleys are curved. The sheet package according to claim 2, wherein the waveform is a sine wave. The sheet package according to claim 2, wherein the waveform is a rectified wave. The sheet package according to claim 1, wherein the waveform is a triangular wave. The sheet package according to any one of claims 1 to 5, wherein the period of the waveform is 0.1 mm or more and 6 mm or less. The sheet package according to claim 6, wherein the period of the waveform is twice or more the wave height of the waveform. The sheet packaging according to any one of claims 1 to 7, wherein an edge of the free end part on a side away from the adhesive part is convex toward a side away from the adhesive part in the second direction. body.

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