JP2022138345A - sheet package - Google Patents

Abstract

To provide a sheet package configured so that a sheet hardly sticks to a seal member.SOLUTION: A sheet package comprises: a packaging bag that stores a plurality of laminated sheets; an extraction port which opens to a top surface when a portion of the top surface of the packaging bag is cleaved; a cover body, formed of a portion of the cleaved top surface, which covers the extraction port openably and closably; and a seal member, fixed to the cover body, which is made to adhere to the top surface attachably and detachably. The cover body has a first edge, connected to the top surface, which extends in a first direction, and a second edge, not connected to the top surface, which protrudes in a second direction crossing the first direction and extends from a terminal at one side of the first edge to a terminal at the other side thereof. The seal member has a fixed part that is fixed to the portion of the top surface, an adhesive part that is made to a portion other than the portion of the top surface attachably and detachably, and a free end part, arranged adjacent to the adhesive part, which is not made to adhere to the top surface, where a non-adhesion part overlapping with the second edge is formed between the fixed part and the adhesive part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sheet package.

2. Description of the Related Art A sheet package such as a pocket tissue is configured by accommodating a sheet such as tissue paper in a packaging bag formed of a resin film. Perforations are formed on the top surface of the packaging bag, and an outlet is formed by tearing the perforations. By inserting the fingertips into the packaging bag through the outlet and pinching the uppermost sheet, the sheet is pulled out (for example, Patent Document 1).

In addition, a sheet package in which a perforation is opened to form an ejection port breaks the sheet when the perforation is opened. There are problems such as not being able to use it cleanly until the end. As a sheet package that solves these problems, there is a sheet package that can be repeatedly opened and closed by covering the outlet with a seal member that can be peeled and adhered (for example, Patent Document 2).

JP 2015-47270 A Utility Model Registration No. 3112201

However, in a sheet package having an outlet covered with a seal member, when the outlet is repeatedly opened and closed, the seal member sticks to the sheet, resulting in breakage of the sheet or deterioration of adhesiveness of the seal member.

SUMMARY OF THE INVENTION An object of the present invention is to provide a sheet package in which a sheet is less likely to stick to a sealing member.

A first aspect of the present invention includes a packaging bag for accommodating a plurality of stacked sheets, an outlet opening to the top surface when a part of the top surface of the packaging bag is cleaved, and the cleaved top surface. and a sealing member fixed to the lid and detachably adhered to the top surface. a first edge connected to the top surface and extending in a first direction; a second edge extending to a terminal end, wherein the sealing member includes a fixing portion fixed to the portion of the top surface and an adhesive detachably adhered to a portion of the top surface other than the portion. and a free end that is adjacent to the adhesive portion and is not adhered to the top surface, and a non-adhesive portion overlapping the second edge is formed between the fixed portion and the adhesive portion. It is a sheet package.

In this specification, the take-out port that opens to the top surface when a part of the top surface of the packaging bag is cleaved has a cut line for tearing formed on the top surface, and the top surface of the packaging bag is opened by tearing the cut line for tearing. 4 shows an aperture formed in a face; Covering the outlet in an openable/closable manner means that the outlet can be opened from a state in which the lid covers the outlet, and the opened outlet can be covered again with the lid.

The first direction indicates a direction along a predetermined one direction on the top surface of the packaging bag. A second direction that intersects with the first direction indicates a direction perpendicular to the first direction or a direction that intersects the brace on the same plane as the top surface of the packaging bag.

The first edge connected to the top surface indicates the fixed end of the lid connected to the top surface with the extraction port open even if the tearing cut line is cleaved. A second edge that is not connected to the top surface is formed when the tearing score line is cleaved, and indicates a free end of the lid that is not connected to the top surface when the outlet is open. The second edge being convex and extending from one end of the first edge to the other end means that the second edge is spaced apart from the first edge while being connected to both ends of the first edge. It shows that it protrudes in a plan view in the direction.

The portion other than a portion of the top surface to which the adhesive portion of the sealing member adheres means the portion of the top surface excluding the lid. To be detachably adhered to the top surface means that it can be peeled off from the state of being adhered to the top surface, and can be adhered to the top surface again from the state of being peeled off. The free end indicates a portion that can constitute a handle or knob of the sealing member that is neither fixed nor adhered to the top surface.

The non-adhesive portion indicates a partial region or portion of the seal member that does not substantially have a function of adhering to the top surface. The non-bonded portion overlaps the second edge means that the non-bonded portion is arranged on at least part of the portion covered by the sealing member on the second edge.

In the first aspect, a non-adhesive portion overlapping the second edge of the lid is formed between the fixed portion and the adhesive portion of the sealing member, thereby unsealing or opening or resealing or closing the outlet. The sheet is less likely to stick to the sealing member when opening and closing the outlet (hereinafter referred to as opening and closing). As a result, when the cover to which the sealing member is fixed is used to open and close the outlet, damage to the sheet can be suppressed, and furthermore, deterioration of adhesiveness of the sealing member can be prevented.

In addition, in the first aspect, when the sealing member is peeled off from the top surface, the outlet is cleaved on the top surface, and a part of the cleaved top surface serves as a lid, so that the top surface of the packaging bag is not pressed. The outlet can be opened immediately. Therefore, in the first aspect, it is possible to prevent the sheet from tearing when the outlet is opened.

In addition, in the first aspect, a part of the cleaved top surface constitutes a lid body that covers the outlet so that it can be opened and closed, so that the outlet can be closed. It becomes difficult for dust to enter. Thereby, in the first aspect, the sheet package can be used hygienically.

Further, in the first aspect, the first edge of the lid is connected to the top surface, so that the lid constituting 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 generation of fragments (such as fragments separated from the packaging bag) when the outlet is unsealed (or opened).

Furthermore, in the first aspect, the second edge of the lid is not connected to the top surface and is protruded in a second direction intersecting the first direction from one end of the first edge to the other end. The extension facilitates fixing of the sealing member to the lid.

A second aspect of the present invention is the sheet package, wherein the non-bonded portion is arranged along the second edge. In the second aspect, since the non-bonded portion of the sealing member is arranged along the second edge of the lid, the non-bonded portion tends to overlap the entire portion of the second edge covered with the sealing member. Become. Therefore, in the second aspect, it is possible to prevent the sheet from sticking to the seal member when opening and closing the outlet.

Furthermore, in the first aspect, the sealing member has a fixed portion fixed to the lid, an adhesive portion detachably adhered to a portion of the top surface excluding the lid, and a free end portion not adhered to the top surface. , the sealing member may constitute a trigger for opening and closing the outlet of the top surface. Therefore, in the first aspect, the lid can be easily opened and closed by attaching and detaching the sealing member.

A third aspect of the present invention is the sheet package, wherein the non-bonded portion has a linear shape in plan view. As used herein, the term "linear" refers to an elongated shape having a predetermined width. In the third aspect, by making the planar view shape of the non-bonded portion of the sealing member linear, the entire portion of the second edge covered by the sealing member can be covered with the non-bonded portion. Therefore, in the third aspect, it is possible to further prevent the sheet from sticking to the seal member when opening and closing the outlet.

In a fourth aspect of the present invention, the edge of the non-bonded portion on the fixed portion side is arranged near the second edge of the portion of the top surface, and the adhesive portion of the non-bonded portion A side edge is arranged near the second edge of the portion excluding the part of the top surface. In this specification, a part of the top surface near the second edge indicates the vicinity of the second edge on the lid. The vicinity of the second edge of the portion excluding a portion of the top surface indicates the vicinity of the second edge on the portion of the top surface excluding the lid.

In the fourth aspect, the edge of the non-bonded portion on the fixed portion side is arranged near the second edge of a portion of the top surface, and the edge on the adhesive portion side of the non-bonded portion excludes a portion of the top surface. By being arranged near the second edge of the portion, the sealing member can be provided with a linear non-bonded portion overlapping the second edge along the second edge. Therefore, in the fourth aspect, it is possible to further prevent the sheet from sticking to the seal member when opening and closing the outlet.

A fifth aspect of the present invention is the sheet packaging body, wherein the planar view shape of the non-bonded portion is dot-shaped. In this specification, the dot shape indicates that the non-bonded portion is composed of a plurality of dots (or points), and the dots are distributed regularly or randomly. In the fifth aspect, by making the non-bonded portion have a dot shape in plan view, it is possible to suppress sticking of the sheet to the sealing member when opening and closing the outlet.

In addition, in the fifth aspect, since the fixed portion and the adhesive portion of the sealing member are not separated by providing the non-adhesive portion having a dot shape in plan view, the top surface is partly cleaved to open the outlet. When doing so, the force of peeling off the adhesive part tends to be gently transmitted toward the fixed part. Therefore, in the fifth aspect, it is possible to suppress peeling of the fixing portion when the packaging bag is opened.

A sixth aspect of the present invention is the sheet packaging body, wherein the non-bonded portion is formed by cutting out a part of the sealing member. In the present specification, the phrase "formed by notching" means that the non-bonded portion is formed by a notch provided in the sealing member.

In the sixth aspect, since the non-bonded portion is configured by such a notch portion, it is possible to provide the non-bonded portion to the sealing member while reducing the size of the sealing member. Further, since the non-bonded portion is formed only by notching the sealing member, the non-bonded portion can be easily formed in the sealing member.

A seventh aspect of the present invention is the sheet package, wherein the width of the adhesive portion in the first direction narrows from the free end side toward the fixed portion side. In this specification, the width of the adhesive portion in the first direction indicates the width of the adhesive portion that extends along the first direction.

In the seventh aspect, the width of the adhesive portion in the first direction narrows from the free end side toward the fixed portion side, so that the force for peeling off the adhesive portion is easily transmitted toward the fixed portion side. The outlet can be unsealed or opened by force. In addition, in the seventh aspect, the outlet can be opened or unsealed with a small force, so even if the non-adhesive portion is configured by a notch portion in which a part of the sealing member is notched, the packaging bag can be opened. To suppress peeling of the fixed part when unsealing.

An eighth aspect of the present invention is a sheet package, wherein the width of the non-bonded portion in the second direction is 40% or more and 60% or less of the width of the adhesive portion in the second direction. . In this specification, the width of the non-bonded portion in the second direction indicates the width of the non-bonded portion extending along the second direction. The width of the adhesive portion in the second direction indicates the width of the adhesive portion extending along the second direction.

In the eighth aspect, the width of the non-bonded portion in the second direction of the sealing member is 40% or more and 60% or less of the width of the adhesive portion in the second direction. While preventing the member from sticking to the sheet, the adhesive part becomes easy to peel off.

A ninth aspect of the present invention is the sheet package, wherein the width of the fixing portion in the second direction is 80% or more and 100% or less of the width of the adhesive portion in the second direction. In this specification, the width of the fixing portion in the second direction indicates the width of the fixing portion expanding along the second direction.

In the ninth aspect, the width of the fixing portion in the second direction is 80% or more and 100% or less of the width of the adhesive portion in the second direction, so that the sealing member sticks to the sheet when the outlet is opened and closed. While preventing sticking, the adhesive part is easily peeled off and the fixed part is hard to be peeled off.

According to one aspect of the present invention, it is possible to provide a sheet package in which the sheet is less likely to stick to the sealing member.

It is a figure which shows the sheet|seat packaging body of 1st Embodiment. FIG. 2 is a diagram showing sheets to be accommodated in a packaging bag of the sheet packaging body of FIG. 1; It is the figure which looked at the sheet|seat packaging body of FIG. 1 from the top surface side. It is the figure which looked at the sheet|seat packaging body of FIG. 1 from the bottom face side. It is the figure which looked at the sheet|seat packaging body of FIG. 1 from the front side. It is the figure which looked at the sheet packaging body of FIG. 1 from the left side. It is the figure which looked at the sheet packaging body of FIG. 1 from the right side. 4 is an enlarged view of an outlet and a sealing member in FIG. 3; FIG. FIG. 9 is an enlarged view of a sealing member in FIG. 8; It is the figure which looked at the sealing member from the back side in FIG. FIG. 10 is a cross-sectional view taken along line AA of FIG. 9; FIG. 10 is a cross-sectional view taken along line BB of FIG. 9; It is the figure which opened the extraction opening in the sheet|seat package body of FIG. It is the figure which expanded the sealing member in the sheet packaging body of 2nd Embodiment, and looked at it from the back side. It is the figure which expanded the sealing member in the sheet package body of 3rd Embodiment. It is the figure which looked at the sealing member from the back side in FIG. It is the figure which expanded the sealing member of the comparative example, and looked at it from the back surface.

Embodiments of the present invention will be described in detail with reference to the drawings. In each figure, unless otherwise described, the same or corresponding configurations may be denoted by the same reference numerals and descriptions thereof may be omitted. Also, in each drawing, the scale of each member may differ from the actual scale.

In each figure, using a three-dimensional orthogonal coordinate system in three axial directions (X direction, Y direction, Z direction), 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. The X direction corresponds to the first direction (the direction along a predetermined direction on the top surface of the packaging bag) in this embodiment, and the Y direction corresponds to the second direction (the top surface of the packaging bag) in this embodiment. direction perpendicular to the first direction or a direction crossing the brace on the same plane as ) (FIG. 3).

FIG. 1 is a diagram showing a sheet package according to the first embodiment. FIG. 2 is a view showing sheets (sheet laminate) accommodated in the packaging bag of the sheet package shown in FIG. FIG. 3 is a view of the sheet package in FIG. 1 as seen from the top surface side. FIG. 4 is a view of the sheet packaging body of FIG. 1 viewed from the bottom side. FIG. 5 is a front view of the sheet package shown in FIG. FIG. 6 is a view of the sheet package in FIG. 1 as seen from the left side. FIG. 7 is a view of the sheet package in FIG. 1 as seen from the right side.

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

The packaging bag 10 accommodates a plurality of (or a plurality of sets of) stacked sheets S (hereinafter referred to as a sheet stack SL). The sheet stack SL is accommodated in the packaging bag 10 such that the stacking direction (LD direction) of the sheets S is aligned with the height direction (Z direction) (FIGS. 1 and 2). The sheet stack SL is designed so that the sheets S can be pulled out one by one (or one set at a time) through an outlet 20 (opening OP) formed in the packaging bag 10 (FIG. 13).

The form of the sheet stack SL is not particularly limited. For example, one sheet (or one set) of the sheets S is Z-folded, the upper and lower folded edges are each folded in half, and the center of the longitudinal direction is folded. It is possible to use a sheet that is laminated in such a way that the folding line F can be pinched in a state of being folded in two (Fig. 2). As for the form of the sheet stack SL, the sheets S are alternately stacked in a folded state (a so-called pop-up sheet stack), or a stack of a plurality of sheets S is simply stacked. good too.

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

The form of the sheet S that constitutes the sheet laminate SL is not particularly limited, and for example, it can be applied to sanitary thin paper such as tissue paper, toilet paper, kitchen paper, and paper towels. These sanitary thin papers also include sanitary thin papers containing moisturizing ingredients (for example, lotion tissues, etc.). Furthermore, these sanitary thin papers may contain aqueous solutions such as alcohol and sodium hypochlorite, fragrances such as fragrances, chemicals such as deodorants, and the like.

Further, the use of the sheet S is not particularly limited, and can be applied to industrial use, home use, and portable use. Among these, household and portable lotion tissues are preferably used as the sheet in the present embodiment.

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

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

In addition, the pulp composition in the sheet S (paper sheet) is not particularly limited. hardwood pulp such as unbleached pulp) can be used in any ratio. The ratio of softwood pulp to hardwood pulp is not limited, but is preferably 10:90 to 80:20, and more preferably has a pulp composition in which the ratio of softwood pulp to hardwood pulp is higher. 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 for paper, and 20 g/m ^{2 or more and 100 g/m 2 or} less for nonwoven fabric. desirable. The basis weight can be measured in accordance with JIS P 8124 (2011).

Moreover, 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 thickness of the sheet S (paper sheet) can be 50 μm or more and 500 μm or less, preferably 60 μm or more and 330 μm or less, more preferably 100 μm or more and 200 μm or less per two plies.

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

The material of the packaging bag 10 is not particularly limited, and examples include polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), polyvinyl chloride (PVC), 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 preferable from the viewpoints of flexibility, excellent handleability, high sealability, and low cost. Further, polyethylene is preferable from the viewpoints of being odorless, having excellent water resistance and chemical resistance, and being mass-producible at low cost. As polyethylene, high-density polyethylene, low-density polyethylene, or the like can be used. Polypropylene is also preferable from the viewpoints of being robust, easy to mold, good in color development during printing, and capable of imparting 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-described resin, a laminate film obtained by laminating the above-described resin, or a mixture of two or more of the above-described resins. It may 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, it is possible to secure sufficient strength as the packaging bag 10 in which the sheets S are accommodated. Moreover, by setting the thickness of the packaging bag 10 to 100 μm or less, the flexibility and lightness of the packaging bag 10 can be ensured, and the cost can be reduced.

In addition, when the material of the packaging bag 10 is a film such as resin, the flow direction (the direction in which the resin flows in resin molding or the stretching direction of the film) is preferably the second direction (Y direction), which is perpendicular to the flow direction. It is preferable that the direction of rotation is the first direction (X direction) (FIG. 3).

The material forming the packaging bag 10 is not limited to the resin material such as the flexible film described above, and a paper material (kraft paper, etc.) may be used. In addition, materials for forming the packaging bag 10 include biodegradable materials (biodegradable plastic, biodegradable paper, etc.), biomass materials (renewable biologically-derived organic resources such as biomass films, excluding fossil resources). other) may be used.

The packaging form of the packaging bag 10 is not particularly limited. Examples of the packaging form of the packaging bag 10 include packaging in which both ends or one of the ends of a tubular flexible film are sealed (pillow packaging), and both ends of a tubular flexible film. Packaging that folds and seals (sealing) (caramel packaging), packaging that heats a heat-shrinkable resin film and adheres to the object to be packaged (shrink packaging), or packaging that combines these can be adopted. can.

In this embodiment, as shown in FIGS. 1 and 3 to 7, the packaging bag 10 is a pillow packaging bag. Specifically, in the sheet package 100, the sheet S (sheet stack SL) is formed in a state in which the welded portions 30 and 40 are formed at both ends 10A and 10B of the cylindrical flexible film folded in three. It is packaged (Figs. 1, 3, 4). The tubular packaging bag sheet that constitutes the pillow packaging bag may be folded into a gusset shape.

The welding portion 30 has an inner end 31 and an outer end 32 extending in the first direction (X direction), and the inner end 31 seals the end portion 10A of the packaging bag 10 by thermal welding. The welding part 40 has an inner end 41 and an outer end 42 extending in the first direction (X direction), and the inner end 41 seals the end 10B of the packaging bag 10 by thermal welding (FIGS. 3 to 4). 7).

Moreover, 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 and 3 to 7). Note that the top surface 11 is an example of the top surface of the packaging bag that constitutes the sheet package according to the present 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). The bottom surface 12 has edges 12A and 12B extending in the first direction (X direction) and edges 12C and 12D extending in the second direction (Y direction) (FIGS. 3 and 4).

A welded portion 30 is formed on the edge 11A of the top surface 11 and the edge 12A of the bottom surface 12 . Welded portions 40 are 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 welding portion 30, and the edge 11B of the top surface 11 and the edge 12B of the bottom surface 12 are integrated. , are integrated via a welded portion 40 (FIGS. 5 to 7).

The dimensions of the packaging bag 10 are 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, and the width direction (X direction) orthogonal to the longitudinal direction (Y direction) of the sheet packaging body 100 is The width W1 can be 50 mm or more and 150 mm or less, and the height J in the height direction (Z direction) can be 5 mm or more and 85 mm or less (FIGS. 3 and 5). Note that the dimensions of the packaging bag 10 indicate the dimensions in a state in which the sheet stack SL is accommodated in the packaging bag 10 (FIGS. 1, 2, and 13).

The outlet 20 is formed in the top surface 11 and the sheet S is taken out (FIG. 13). The outlet 20 opens in the top surface 11 of the packaging bag 10 when a portion BL of the top surface 11 is cleaved (FIGS. 1 and 13). In the present embodiment, the outlet 20 is formed by tearing lines CL (for example, perforations) formed on the top surface 11, and the top surface 11 of the packaging bag 10 is opened by tearing the tearing lines CL. An opening OP is formed in the opening OP, and this opening OP constitutes the outlet 20 (FIGS. 1, 3, and 13).

In the cleaving cut line CL, cuts C1 and ties T1 (uncut portions between two cuts C1) are alternately arranged, and when the tie T1 is broken, the adjacent cuts C1 become continuous cuts. (Figs. 3 and 8).

The length of the cut C1 and the length of the tie T1 on the cleaving score line CL are arbitrary. 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, more preferably 2.5 mm or more and 7.0 mm or less. 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, more preferably 0.5 mm or more and 1.5 mm or less.

In addition, in the present embodiment, the tip 20C of the outlet 20 may be configured with a continuous cut line (not shown). Here, a continuous score line indicates that it has been cut in advance. Specifically, it shows that part of the cleaving line CL (tip 20C) forming the outlet 20 is formed by one cut (not shown).

The cut length of the tip 20C of the outlet 20 is arbitrary. For example, the length of the cut can be 10 mm or more and 30 mm or less, preferably 13 mm or more and 27 mm or less, more preferably 16 mm or more and 25 mm or less.

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

Here, the center portion 11E of the top surface 11 includes the center (centroid) G of the top surface 11 and indicates a region of about one-tenth to one-fifth of the entire top surface 11 . The outlet 20 is formed on the edge 11B side in the second direction (Y direction) with respect to the central portion 11E of the top surface 11 (FIG. 3).

The interval L2 between the outlets 20 in the second direction (Y direction) is 15% or more and 60% or less, preferably 20% or more, with respect to the length L1 of the longitudinal direction (Y direction) of the packaging bag 10. It is 55% or less, more preferably 25% or more and 50% or less. Further, the interval W2 between the outlets 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 packaging body 100 of this embodiment further has a lid body 50 . The lid 50 is formed of a part BL of the top surface 11 that has been cleaved, and covers the outlet 20 so as to be openable and closable. Here, to cover the outlet 20 so as to be openable and closable means that the outlet 20 can be opened from the state where the lid 50 covers the outlet 20, and the opened outlet 20 (opening OP) can be opened again by the lid 50. (Figs. 1, 3, 13).

The lid 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, is convex in the second direction (Y direction), and extends from one end 20A of the first edge 51 to the other end 20B.

The first edge 51 connected to the top surface 11 is the fixed end 51 of the lid body 50 connected to the top surface 11 with the outlet 20 (OP) opened even after the tearing line CL is cleaved. configure. A first edge 51 of the lid body 50 constituting the fixed end 51 corresponds to an edge 20D of the outlet 20 on the welding part 40 side, which is a base end when opening and closing the outlet 20 (FIGS. 3 and 4). 8). The edge 20D of the outlet 20 is formed at the inner end 41 of the welded portion 40, and the first edge 51 of the lid 50 (the edge 20D of the outlet 20) is formed at the inner end 41 of the welded portion 40. It is fixed (Figs. 3, 8, 13).

The second edge 52 that is not connected to the top surface 11 is formed when the tearing line CL is cleaved, and constitutes the free end 52 of the lid body 50 that is not connected to the top surface 11 when the outlet 20 is open. Here, the fact that the second edge 52 is convex and extends from one end 20A of the first edge 51 to the other end 20B means that the second edge 52 extends from both ends 20A and 20B of the first edge 51. In the connected state, it protrudes in a plan view in a direction away from the first edge 51 (SD direction) (FIGS. 3 and 8).

A sheet package 100 according to this embodiment has a sealing member 60 that is fixed to the lid 50 and adheres to the top surface 11 . The seal member 60 has a fixed portion 61, an adhesive portion 62, and a free end portion 63 (FIGS. 1, 3, 8, 9 to 13).

A fixed portion 61 of the seal member 60 is fixed to the lid 50 . Specifically, the fixing portion 61 is fixed inside the lid body 50 along the portion 52A of the second edge 52 (FIGS. 3 and 8). In this embodiment, the fixing portion 61 is provided on the sealing member 60, but the position of the fixing portion 61 is not limited to this. It may be provided on the part that becomes

A portion 52A of the second edge 52 corresponds to the tip 20C of the outlet 20 (Figs. 3 and 8). In this embodiment, the distance W4 in the first direction (X direction) of the tip 20C of the outlet 20 is shorter than the width W3 in the first direction (X direction) of the sealing member 60 (FIGS. 3 and 8).

Here, the width W3 of the sealing member 60 in the first direction (X direction) indicates the extent of the sealing member 60 extending in the first direction (X direction). A distance W4 in the first direction (X direction) of the tip 20C is a 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 that constitutes the tip 20C. Indicates distance.

Also, the interval W4 in the first direction (X direction) of the tip 20C is arbitrary, but is preferably 75% or more and 99% or less of the width W3 in the first direction (X direction) of the sealing member 60. is 80% or more and 95% or less, more preferably 85% or more and 90% or less. In this embodiment, for example, the width W3 of the sealing member 60 in the first direction (X direction) is approximately 25 mm, and the distance W4 between the tips 20C in the first direction (X direction) is approximately 22 mm.

In the sealing member 60, the width L4 of the fixing portion 61 in the second direction (Y direction) is preferably 10% or more and 70% or less of the length L3 of the sealing member 60 in the second direction (Y direction). is 20% or more and 60% or less, more preferably 30% or more and 50% or less (FIGS. 8 and 9).

The width L4 of the fixing portion 61 in the second direction (Y direction) is 80% or more and 100% or less, preferably 83% or more and 97% of the width L5 of the adhesive portion 62 in the second direction (Y direction). % or less, more preferably 85% or more and 95% or less (Fig. 9).

Here, the length L3 of the sealing member 60 in the second direction (Y direction) is the length of the sealing member 60 extending along the second direction (Y direction), and the second direction (Y direction) of the fixed portion 61 is ), the width L5 of the adhesive portion 62 in the second direction (Y direction), and the width L6 of the free end portion 63 in the second direction (Y direction) (FIGS. 8 and 9). .

A width L4 of the fixing portion 61 in the second direction (Y direction) indicates the width of the fixing portion 61 extending along the second direction (Y direction) (FIGS. 8 and 9). A width L5 of the adhesive portion 62 in the second direction (Y direction) indicates the width of the adhesive portion 62 extending along the second direction (Y direction) (FIG. 9). A width L6 of the free end portion 63 in the second direction (Y direction) indicates the width of the free end portion 63 extending along the second direction (Y direction) (FIG. 9).

Adhesive portion 62 of seal member 60 is detachably adhered to a portion of top surface 11 excluding part BL adjacent to fixed portion 61 (FIGS. 9 to 13). The portion of the top surface 11 excluding the part BL to which the adhesive portion 62 of the seal member 60 is adhered corresponds to the portion of the top surface 11 excluding the lid body 50 . Detachably adhering to the top surface 11 indicates that the adhesive portion 62 can be peeled off from the state of being adhered to the top surface 11 and can be adhered to the top surface 11 again from the peeled state (FIGS. 1 and 13). .

The width L5 of the adhesive portion 62 in the second direction (Y direction) is 5% or more and 65% or less, preferably 15% or more and 55% of the length L3 of the seal member 60 in the second direction (Y direction). % or less, more preferably 25% or more and 45% or less (FIG. 9).

The free end portion 63 is adjacent to the adhesive portion 62 and is not adhered to the top surface 11 (FIGS. 9-13). Specifically, the free end portion 63 constitutes a portion of the sealing member 60 that is neither fixed nor adhered to the top surface 11 and can constitute a handle of the sealing member 60 (FIGS. 1, 3, 8, and 9). ~ Fig. 13).

A width L6 of the free end portion 63 in the second direction (Y direction) is 10% or more and 40% or less, preferably 15% or more, of the length L3 of the seal member 60 in the second direction (Y direction). It is 35% or less, more preferably 20% or more and 30% or less (Fig. 9).

In this embodiment, by setting the width L6 of the free end portion 63 in the second direction (Y direction) to 10% or more and 40% or less of the length L3 of the seal member 60 in the second direction (Y direction), When opening and closing the outlet 20, the free end 63 of the sealing member 60 is easy to pick, the adhesive part 62 is easy to peel off, and the fixed part 61 is difficult to peel off.

The shape of the free end portion 63 is arbitrary, and in the present embodiment, the edge (edge 63B) of the free end portion 63 on the side away from the adhesive portion 62 is convex in the direction away from the adhesive portion 62. Preferably, the edge 63B of the free end 63 is arcuate (FIGS. 3, 8-10).

Here, the side of the free end portion 63 away from the adhesive portion 62 indicates the side of the free end portion 63 adjacent to the adhesive portion 62 that is opposite to the adhesive portion 62 side. Being convex toward the side away from the adhesive portion 62 means that the edge of the free end portion 63 opposite to the adhesive portion 62 side (edge 63B) is the side away from the adhesive portion 62 in the second direction (Y direction). indicates that it tapers towards

The form of the sealing member 60 is not limited, and for example, a base material BM coated with adhesives G1 and G2 can be used (FIGS. 10 to 12). In the present embodiment, the portion of the base material BM on which the adhesive G1 application surface is formed constitutes the fixed portion 61, and the portion on which the adhesive G2 application surface is formed constitutes the adhesive portion 62. A portion on which neither agent G1 nor G2 is formed forms a free end portion 63 (FIGS. 10 to 12).

The material of the base material BM is not limited, but resin materials such as the flexible film used for the packaging bag 10 described above, paper materials, biodegradable materials, biomass materials, and the like can be used. Moreover, the form of the base material BM is not limited, and the single layer film, laminated film, and mixed film used for the packaging bag 10 described above can be used. Furthermore, the thickness of the base material BM can adopt the thickness used for the packaging bag 10 described above.

Although the material of the adhesive G1 of the fixing portion 61 is not limited, it is preferably an adhesive having an adhesive strength of 2 N/25 mm or more and 6 N/25 mm or less. Although the material of the adhesive G2 of the adhesive portion 62 is not limited, it is preferably a material with an adhesive strength of 2 N/6 mm or more and 8 N/25 mm or less. Here, the adhesive force indicates a peeling resistance value measured by an adhesive force test method based on JIS Z0237.

The adhesive force between the adhesive G1 of the fixing portion 61 and the adhesive G2 of the adhesive portion 62 is arbitrary. For example, the adhesive force of the adhesive G2 of the adhesive portion 62 can be made weaker than the adhesive G1 of the fixing portion 61 . Further, the adhesive G1 of the fixed portion 61 and the adhesive G2 of the adhesive portion 62 may have the same adhesive force. If the adhesive G1 of the fixing portion 61 and the adhesive G2 of the adhesive portion 62 have the same adhesive strength, the adhesive G1 and the adhesive G2 can be the same adhesive.

Also, at the free end portion 63, after applying the same adhesive as the fixed portion 61 and the adhesive portion 62, the adhesion may be lost by applying varnish or the like or applying a film thereon. . Alternatively, the free end portion 63 may be constructed in a state in which the adhesive is not applied from the beginning.

When the sealing member 60 is viewed from the back side, the fixed portion 61 has a surface coated with the adhesive G1 in a range surrounded by the edges 61A, 61B, 61C, and 61D. Also, the adhesive portion 62 has a surface to which the adhesive G2 is applied in a range surrounded by the edges 62A, 62B, 62C, and 62D. Furthermore, the free end portion 63 has a portion of the base material BM exposed in a range surrounded by the edges 63A and 63B (FIG. 10).

A non-bonded portion 64 is formed between the fixed portion 61 and the adhesive portion 62 in the sealing member 60 . The non-adhesive portion 64 constitutes a partial region or portion of the seal member 60 that does not substantially have a function of adhering to the top surface 11 . In this embodiment, the non-bonded portion 64 constitutes a boundary region E1 between the fixed portion 61 and the adhesive portion 62, and is neither fixed nor adhered to the top surface 11 (FIG. 9).

In addition, the form of the non-adhesive portion that does not substantially have an adhesive function is arbitrary. For example, the non-adhesive portion may be coated with the same adhesive as the fixed portion and the adhesive portion, and then coated with varnish or the like or pasted with a film to lose adhesiveness. Moreover, the non-adhesive portion may be configured in a state where the adhesive is not applied from the beginning or in a state where the adhesive is applied to such an extent that the adhesive function is not substantially exhibited. Furthermore, the non-bonded portion may be formed by cutting out a part of the sealing member.

The non-bonded portion 64 overlaps the second edge 52 of the lid 50 while the seal member 60 is fixed to the lid 50 . Here, the non-bonded portion 64 overlaps the second edge 52 of the lid body 50 means that the non-bonded portion 64 is arranged on at least part of the portion of the second edge 52 covered by the seal member 60 . indicates that In the present embodiment, the non-bonded portion 64 is provided on the seal member 60 so as to cover the entire portion 52A of the second edge 52 of the lid 50 (tip 20C of the outlet 20).

Also, the non-bonded portion 64 is arranged along the second edge 52 of the lid 50 . The shape of the non-bonded portion 64 is not particularly limited, but in the sheet packaging body 100 of the first embodiment, the non-bonded portion 64 has a linear shape in plan view. Here, the term "linear" refers to an elongated shape having a predetermined width (Fig. 10). In the first embodiment, the planar view shape of the non-bonded portion 64 (boundary region E1) is convex from the fixed portion 61 side toward the adhesive portion 62 side (FIG. 10).

When the seal member 60 is viewed from the back side, the non-bonded portion 64 is partially exposed in the base material BM except for the free end portion 63 in the range surrounded by the edges 64A, 64B, 64C, and 64D ( Figure 10).

The non-adhesive portion 64 has an edge 64A on the side of the fixed portion 61 arranged near the second edge 52 of the lid 50 (a portion BL of the top surface 11), and an edge 64D on the side of the adhesive portion 62. It is arranged near the second edge 52 of the portion ES of the top surface 11 excluding (a portion BL of the top surface 11). Here, the vicinity of the second edge 52 of the lid 50 indicates the vicinity of the second edge 52 on the lid 50 . The second edge 52 side of the portion ES of the top surface 11 indicates the vicinity of the second edge 52 on the portion of the top surface 11 excluding the lid body 50 .

In the seal member 60, the width L7 in the second direction (Y direction) of the non-bonded portion 64 is 40% or more and 60% or less of the width L5 in the second direction (Y direction) of the adhesive portion 62, preferably 43% or more and 57% or less, more preferably 45% or more and 55% or less (Fig. 9). Here, the width L7 of the non-bonded portion 64 in the second direction (Y direction) indicates the width of the non-bonded portion 64 extending along the second direction (Y direction).

An edge 62D of the adhesive portion 62 and an edge 63A of the free end portion 63 form a boundary line E2 between the adhesive portion 62 and the free end portion 63 (FIG. 10). In this embodiment, the planar view shape of the boundary line E2 is convex from the adhesive portion 62 side toward the free end portion 63 side (FIG. 10). Here, the boundary line E2 constitutes a line extending along the boundary between the adhesive portion 62 and the free end portion 63 of the sealing member 60 .

In the present embodiment, as described above, the non-adhesive portion 64 overlapping the second edge 52 of the lid 50 is formed between the fixed portion 61 and the adhesive portion 62 of the seal member 60 . The sheet S is less likely to stick to the seal member 60 when the outlet 20 is unsealed, opened, resealed, or closed (hereinafter referred to as opening and closing of the outlet 20). As a result, damage to the sheet S is suppressed when opening and closing the outlet 20 by the lid 50 to which the sealing member 60 is fixed, and furthermore, it is possible to prevent deterioration of the adhesiveness of the sealing member 60 (FIGS. 1, 10, Figure 13).

In addition, in the present embodiment, when the seal member 60 is peeled off from the top surface 11 , the outlet 20 is cleaved in the top surface 11 , and the cleaved part BL of the top surface 11 becomes the lid 50 . The outlet 20 can be opened without pressing the top surface 11 (FIGS. 1 and 13). Therefore, in this embodiment, it is possible to prevent the sheet S from tearing when the outlet 20 is opened.

In addition, in the present embodiment, the opening 20 can be closed by forming the lid 50 that covers the opening 20 with the cleaved part BL of the top surface 11 . Dirt, dust, etc. are less likely to enter the bag 10.例文帳に追加Thereby, in this embodiment, the sheet packaging body 100 can be used hygienically.

In addition, in the present embodiment, the first edge 51 of the lid 50 is connected to the top surface 11 , so that the lid 50 , which constitutes the cleaved part BL of the top surface 11 , is separated from the packaging bag 10 . It becomes a small piece connected to the top surface 11 without breaking (FIG. 13). Therefore, in the present embodiment, it is possible to prevent the occurrence of fragments (such as fragments separated from the packaging bag 10) when the outlet 20 is unsealed (or opened).

In this embodiment, since the seal member 60 is fixed to the outlet 20 via the fixing portion 61 , the outlet 20 can be opened and closed without touching the outlet 20 with a fingertip. Therefore, according to this embodiment, it is possible to reduce the burden on the fingertips when opening and closing the outlet 20 (FIGS. 1, 3, 8, and 13).

In addition, in the present embodiment, the second edge 52 of the lid 50 is not connected to the top surface 11 (forming a free end), but extends in the second direction (Y direction) intersecting the first direction (X direction). By extending from one end 20A of the first edge 51 to the other end 20B so as to be convex, the sealing member 60 can be easily fixed to the lid body 50 (FIGS. 3 and 8).

In addition, in this embodiment, the sealing member 60 includes a fixed portion 61 fixed to the lid 50, an adhesive portion 62 detachably adhered to a portion of the top surface 11 excluding the lid 50, and a free end not adhered to the top surface 11. By having the portion 63, the seal member 60 can constitute a trigger TG for opening and closing the outlet 20 of the top surface 11 (FIGS. 1, 3, 8 to 10). Therefore, in the present embodiment, opening and closing of the lid body 50 by attaching and detaching the seal member 60 is easy.

In addition, in the present embodiment, the edge 63B of the free end portion 63 on the side away from the adhesive portion 62 is convex in the direction away from the adhesive portion 62, so that the free end portion 63 of the sealing member 60 is easily turned over. In addition, since the free end portion 63 of the sealing member 60 is easily turned over, the free end portion 63 of the sealing member 60 can be firmly pinched. Therefore, in this embodiment, the opening and closing of the outlet 20 is further facilitated (FIGS. 1, 3, 8 to 10, and 13).

Furthermore, in this embodiment, the edge 63B of the free end portion 63 on the side away from the adhesive portion 62 is arcuate, so that when the free end portion 63 of the seal member 60 is pinched, the free end portion 63 is touched. It is possible to reduce the burden on the fingertips. Therefore, in this embodiment, the free end 63 of the seal member is easy to pinch, and opening and closing of the outlet 20 is further facilitated (FIGS. 1, 3, 8 to 10, and 13).

In this embodiment, as described above, the leading end 20C of the outlet 20 is configured with a continuous cut line, so that a portion BL of the top surface 11 of the packaging bag 10 is torn when the outlet 20 is opened. As described above, the interval W4 in the first direction (X direction) of the tip 20C of the extraction port 20 is shorter than the width W3 in the first direction (X direction) of the sealing member 60, so that the second width forming the tip 20C Both ends 52B and 52C of the portion 52A of the edge 52 can be covered with a sealing member 60 (Figs. 1, 3, 8 and 13). Therefore, in the present embodiment, it is possible to suppress tearing of the top surface 11 of the packaging bag 10 at an unexpected portion around the tip 20C of the outlet 20 covered with the sealing member 60 when the outlet 20 is opened. can.

In the present embodiment, the extraction port 20 is formed on one edge 11B side of the top surface 11 in the second direction (Y direction), so that the extraction port 20 is opened on the welding part 40 side of the top surface 11. be able to. As a result, when the sheet S is taken out 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 welding portion 40 along the second direction (Y direction). Therefore, according to this embodiment, it is possible to provide the sheet packaging body 100 that is easy to use (FIGS. 1, 3, and 13).

In addition, in the present embodiment, the outlet 20 is formed on one edge 11B side of the top surface 11 in the second direction (Y direction). do not have. Therefore, the shape of the packaging bag 10 is easily maintained even after the outlet 20 is unsealed or opened, and the accommodation state of the sheets S (sheet stack SL) in the packaging bag 10 is less likely to be disturbed. Therefore, according to this embodiment, the sheet packaging body 100 can be used neatly to the end (FIG. 13).

In this embodiment, the non-bonded portion 64 of the sealing member 60 is arranged along the second edge 52 of the lid 50 , so that the entire portion of the second edge 52 covered with the sealing member 60 is non-bonded. The adhesion part 64 becomes easy to overlap. Therefore, in the present embodiment, it is possible to prevent the sheet S from sticking to the sealing member 60 when opening and closing the outlet 20 (FIGS. 1, 10, and 13).

In the present embodiment, the non-bonded portion 64 of the seal member 60 has a linear planar shape, so that the entire portion of the second edge covered by the seal member 60 can be covered with the non-bonded portion 64 . Therefore, in the present embodiment, it is possible to further prevent the sheet S from sticking to the sealing member 60 when opening and closing the outlet 20 (FIGS. 1, 10, and 13).

In this embodiment, the edge 64A of the non-bonded portion 64 on the fixed portion 61 side is arranged near the second edge 52 of the lid 50 (part BL of the top surface 11), and the adhesive portion 62 of the non-bonded portion 64 By arranging the side edge 64D closer to the second edge 52 than the lid 50 (part BL of the top surface 11), the side edge 64D overlaps the second edge 52 along the second edge 52. A linear non-bonded portion 64 can be provided on the sealing member 60 . Therefore, in this embodiment, it is possible to further prevent the sheet from sticking to the sealing member 60 when opening and closing the outlet 20 (FIGS. 1, 10, and 13).

In the present embodiment, as described above, the width L7 of the non-bonded portion 64 in the second direction (Y direction) in the seal member 60 is 40% or more of the width L5 of the adhesive portion 62 in the second direction (Y direction). By setting the ratio to 60% or less, the adhesive portion 62 can be easily peeled off while preventing the seal member 60 from sticking to the sheet S when opening and closing the outlet 20 .

In addition, in the present embodiment, the width L4 of the fixing portion 61 in the second direction (Y direction) is 80% or more and 100% or less of the width of the adhesive portion 62 in the second direction (Y direction). While preventing the seal member 60 from sticking to the sheet S when the outlet 20 is opened and closed, the adhesive part 62 is easily peeled off and the fixing part 61 is hard to be peeled off.

FIG. 14 is an enlarged view of the sealing member in the sheet packaging body of the second embodiment, viewed from the back side. 14, parts common to those of the first embodiment are denoted by the reference numerals of FIG. 10 or corresponding reference numerals, and descriptions thereof are omitted.

The sheet packaging body 100 of the second embodiment is a sheet packaging body in which the non-bonded portion 65 has a dot shape in a plan view. Here, the dot shape means that the non-bonded portion 65 is composed of a plurality of dots (or points), and the dots are distributed regularly or randomly. In this embodiment, the non-bonded portion 65 is composed of a plurality of dots 65A, and the dots 65A are arranged at predetermined intervals along the second edge 52 of the lid 50 (FIG. 14).

Further, in the second embodiment, each dot 65A forming the non-bonded portion 65 has a substantially circular planar shape (FIG. 14). The shape of each dot 65A constituting the non-bonded portion 65 is not limited to that of the present embodiment. may Further, the size and number of dots 65A forming the non-bonded portion 65 are not limited to those of the present embodiment.

In the second embodiment, the seal member 60 may be further provided with the linear non-bonded portions 64 described above in addition to the dot-shaped non-bonded portions 65 .

In the second embodiment, by making the planar view shape of the non-bonded portion 65 dot-shaped, it is possible to suppress sticking of the sheet S to the sealing member 60 when opening and closing the outlet 20 .

In addition, in the second embodiment, since the fixed portion 61 and the adhesive portion 62 of the sealing member 60 are not separated by providing the non-adhesive portion 65 having a dot shape in a plan view, a portion BL of the top surface 11 is not separated. When the outlet 20 is opened by tearing, the force of peeling off the adhesive portion 62 tends to be gently transmitted toward the fixing portion 61 side. Therefore, in this embodiment, it is possible to prevent the fixing portion 61 from being peeled off when the packaging bag 10 is opened.

FIG. 15 is an enlarged view of the sealing member in the sheet package of the third embodiment. FIG. 16 is a view of the seal member in FIG. 15 as seen from the back side. In FIGS. 15 and 16, portions common to the first embodiment are denoted by the reference numerals of FIGS. 9 and 10 or corresponding reference numerals, and descriptions thereof are omitted.

In the sheet packaging body 100 of the third embodiment, a non-bonded portion 66 is provided which is formed by cutting out a part of the sealing member 60 . In this embodiment, the non-bonded portion 66 is composed of two non-bonded portions 66A and 66B facing each other in the first direction (X direction). , N2 (FIGS. 15 and 16).

In the third embodiment, the seal member 60 is provided with the above-described linear non-bonded portion 64 in addition to the non-bonded portion 66 (non-bonded portions 66A and 66B) configured by the notches N1 and N2. may be Further, the sealing member 60 may be provided with the dot-shaped non-bonded portions 65 described above in addition to the non-bonded portions 66 .

Further, in the sheet packaging body 100 of the third embodiment, the width W3 of the adhesive portion 62 in the first direction (X direction) narrows from the free end portion 63 side toward the fixed portion 61 side. Here, the width W3 of the adhesive portion 62 in the first direction (X direction) indicates the width of the adhesive portion 62 extending along the first direction (X direction). In this embodiment, the width W5 of the adhesive portion 62 on the fixed portion 61 side is shorter than the width W3 of the adhesive portion 62 on the free end portion 63 side (FIGS. 15 and 16).

In the present embodiment, the non-bonded portions 66 (non-bonded portions 66A and 66B) are configured by the notch portions N1 and N2, so that the non-bonded portions 66 are provided in the sealing member 60 while reducing the size of the sealing member 60. be able to. Moreover, since the non-bonded portion 66 is formed only by notching the seal member 60, the non-bonded portion 64 of the seal member 60 can be easily formed.

In this embodiment, the width W3 of the adhesive portion 62 in the first direction (X direction) narrows from the free end portion 63 side toward the fixed portion 61 side, so that the force for peeling off the adhesive portion 62 is increased to the fixed portion 61 side. Since it becomes easier to transmit toward the direction, it is possible to unseal or open the outlet 20 with less force. In addition, in the present embodiment, since the outlet 20 can be unsealed or opened with a small force, the non-adhesive portion 66 is configured by notches N1 and N2 formed by notching a part of the sealing member 60. However, peeling of the fixing portion 61 when the packaging bag 10 is opened can be suppressed.

Hereinafter, the present embodiment will be specifically described using examples. Examples and comparative examples were evaluated by the following tests.

[Sheet package (specimen)]
As a test piece, a sheet package 100 in which a plurality of sheets S (sheet laminate SL) were packaged in a packaging bag 10 was prepared (FIGS. 1 to 7). The sheet laminate SL is a tissue paper containing a moisturizing component in which the sheets S are folded and laminated (trade name “Elleair Luxury Moisturizing”, manufactured by Daio Paper Co., Ltd., 2 plies, number of sets: 14 sets (28 sheets). ), dimensions: length (width) about 125 mm, depth (vertical width) about 75 mm), height (bulk) about 13 mm. The sheet stack SL was accommodated in the packaging bag 10 so that the stacking direction (LD direction) was aligned with the height direction (Z direction) of the sheet package 100 . The packaging bag 10 is made of polyethylene (PE) with a thickness of 62 μm. The packaging form of the packaging bag 10 was pillow packaging in which both ends in the longitudinal direction (Y direction) of the packaging bag 10 are sealed by heating to form welded portions 30 and 40 . The dimensions of the packaging bag 10 are about 134 mm in length in the longitudinal direction (Y direction), about 84 mm in width in the width direction, and about 12 mm in height in the height direction. The top surface 11 of the packaging bag 10 is provided with a cleaving line CL forming an outlet 20 that opens to the top surface 11 when the top surface 11 of the packaging bag 10 is cleaved, and the top surface where the cleaving line CL is cleaved. A first edge 51 of a partially BL welded portion 40 is connected to the top surface 11 of a cover body 50 that is formed of a portion BL of the surface 11 and covers the outlet 20 in an openable and closable manner. A second edge 52 on the side of 30 is provided so as to form a free end 52 of the lid body 50 that is not connected to the top surface 11 (FIGS. 1, 3, 8 and 13). Also, the top surface 11 of the packaging bag 10 is provided with a sealing member 60 fixed to the lid body 50 and adhered to the top surface 11 . A sealing member 60 was provided with a fixed portion 61, an adhesive portion 62, and a free end portion 63 (FIGS. 9 and 10).

[Sheet Adhesion]
The sealing member 60 is pinched, the tearing line CL on the top surface of the packaging bag 10 is cleaved, the lid body 50 is expanded to open the outlet 20, and the lid body 50 is returned to the base to open the outlet 20. After the opening was closed, it was confirmed whether the sheet S adhered to the sealing member 60 (sheet adherence) when the lid 50 was opened again to open the outlet 20 . The evaluation of sheet adhesion is 0 when the number of users with the sheet S adhered to the seal member 60 when the outlet 20 is opened again by 5 users, and △ when the number is 1 or 2. , 3 or more people were marked as x.

Examples and comparative examples are described below.

[Example 1]
Between the fixed portion 61 and the adhesive portion 62 of the seal member 60, a linear non-bonded portion 64 overlapping the second edge 52 was provided along the second edge 52 of the lid 50 (FIGS. 10 to 12). ). Table 1 shows the results.

[Example 2]
Evaluation was performed in the same manner as in Example 1, except that dot-shaped non-bonded portions 65 were provided instead of linear non-bonded portions 64 (FIG. 14). Table 1 shows the results.

[Example 3]
Evaluation was performed in the same manner as in Example 1, except that non-bonded portions 66 (non-bonded portions 66A and 66B) formed by notches N1 and N2 were provided instead of the linear non-bonded portions 64 (FIGS. 15 and 15). 16). Table 1 shows the results.

[Comparative Example 1]
Evaluation was performed in the same manner as in Example 1 except that no non-bonded portion was provided between the fixed portion 71 and the adhesive portion 72 of the sealing member 70 (FIG. 17). Table 1 shows the results.

From Table 1, the sheet packaging body in which a non-adhesive portion overlapping the second edge of the lid was formed between the fixed portion and the adhesive portion of the sealing member had good seal adhesion results (implementation Examples 1-3, FIGS. 1-19).

On the other hand, the sheet package in which the non-bonded portion was not formed between the fixed portion and the adhesive portion of the sealing member did not exhibit good adhesion of the seal (Comparative Example 1).

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 are possible within the scope of the invention described in the claims. .

100 Sheet Package S Sheet SL Sheet Laminate F Fold LD Lamination Direction 10 Packaging Bag 10A, 10B Edge 11 Top 11A, 11B, 11C, 11D Edge 11E Center G Center (centroid)
BL part (small piece)
ES Portion 12 Bottom 12A, 12B, 12C, 12D Edge 20 Outlet 20A, 20B End 20C Tip 20D Edge CL Cleavage line C1 Cut T1 Tie OP Opening 30 Welded portion 31 Inner end 32 Outer end 40 Welded portion 41 Inside Edge 42 Outer edge 50 Lid 51 First edge (fixed edge)
52 second edge (free end)
52A Part 52B, 52C Terminal 52C Terminal SD Direction away from the first edge 51 60 Seal member TG Trigger 61 Fixed part 61A, 61B, 61C, 61D Edge 62 Adhesive part 62A, 62B, 62C, 62D End Edge 63 Free end 63A, 63B Edge 64 Non-bonded portion 64A, 64B, 64C, 64D Edge 65 Non-bonded portion 65A Dot 66, 66A, 66B Non-bonded portion N1, N2 Notch BM Base material G1, G2 Adhesive E1 Boundary area E2 Boundary line L1, L3 Length L2 Spacing L4, L5, L6, L7 Width W1, W3, W5 Width W2, W4 Spacing J Height

Claims (9)

a packaging bag for accommodating a plurality of laminated sheets;
an outlet that opens to the top surface of the packaging bag when a portion of the top surface of the packaging bag is cleaved;
a cover formed by a part of the cleaved top surface and covering the outlet in an openable and closable manner;
a seal member fixed to the lid and detachably adhered to the top surface;
The lid 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, is convex in a second direction that intersects with the first direction, and extends from one end of the first edge to the other end;
The sealing member is
a fixing portion fixed to the portion of the top surface;
an adhesive portion detachably adhered to a portion of the top surface excluding the part;
a free end adjacent to the adhesive portion and not adhered to the top surface;
A sheet package, wherein a non-adhesive portion overlapping the second edge is formed between the fixed portion and the adhesive portion. 2. The sheet package according to claim 1, wherein said non-bonded portion is arranged along said second edge. 3. The sheet package according to claim 2, wherein the non-bonded portion has a linear shape in plan view. an edge of the non-bonded portion on the fixed portion side is arranged near the second edge of the portion of the top surface;
4. The sheet packaging body according to claim 3, wherein the edge of the non-adhesive portion on the side of the adhesive portion is arranged near the second edge of the portion of the top surface excluding the part. 3. The sheet package according to claim 2, wherein the non-bonded portion has a dot shape in plan view. 2. The sheet package according to claim 1, wherein said non-bonded portion is formed by cutting out a part of said sealing member. 7. The sheet packaging body according to claim 6, wherein the width of said adhesive portion in said first direction narrows from said free end portion side toward said fixed portion side. The sheet packaging according to any one of claims 1 to 7, wherein the width in the second direction of the non-adhesive portion is 40% or more and 60% or less with respect to the width in the second direction of the adhesive portion. body. The sheet packaging body according to any one of claims 1 to 8, wherein the width of the fixing portion in the second direction is 80% or more and 100% or less of the width of the adhesive portion in the second direction. .

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