WO2021085552A1

WO2021085552A1 - Sheet packaging body

Info

Publication number: WO2021085552A1
Application number: PCT/JP2020/040684
Authority: WO
Inventors: 祥子高橋
Original assignee: 大王製紙株式会社
Priority date: 2019-10-31
Filing date: 2020-10-29
Publication date: 2021-05-06
Also published as: JP2021070490A; JP7403278B2

Abstract

A sheet packaging body having: a packaging bag housing a plurality of laminated sheets; and a retrieval port that is formed in the ceiling of the packaging bag and extends in a first direction. The retrieval port has: a first slit that extends in the first direction so as to be convex from one side to the other side in a second direction that intersects the first direction; and a second slit continuing on from both ends of the first slit and extending from the one side to the other side in the second direction, so as to curve away in the first direction from the first slit.

Description

Sheet packaging

The present invention relates to a sheet package.

Sanitary tissue paper such as tissue paper, which is housed in a carton (cardboard box), is widely used. However, carton-type sanitary tissue paper is bulky when carried and stored, and from the viewpoints of disposal after use, environmental load, cost, etc., in recent years, sheets such as sanitary tissue paper have been housed in flexible film packaging bags. Demand for sheet packaging is increasing. In such a sheet package, a slit (perforation or the like) for taking out the sheet is formed on the top surface of the film packaging bag (see, for example, Patent Documents 1 and 2).

Japanese Unexamined Patent Publication No. 2008-183034 JP-A-2018-177364

However, in the sheet packaging body in which the outlet is formed by slits, it is difficult to take out the first one (or one set) of the plurality of stored sheets when taking out the sheets from the sheet packaging bag. Further, when the sheet is taken out, the sheet may be clogged at the outlet, the sheet may be torn, or the vicinity of the outlet of the packaging bag may be torn. Further, at the outlet formed by the slit, the holding force of the sheet may decrease during use, and the sheet may fall into the packaging bag. Further, since the film wrapping bag is lighter than the carton, if the remaining sheets are reduced during use, the film wrapping bag may be lifted up when the sheet is taken out, and the sheet may not be pulled out. As described above, the conventional sheet package has various problems in taking out the sheet.

An object of the present invention is to provide a sheet package excellent in taking out a sheet.

One aspect of the present invention has a packaging bag for accommodating a plurality of laminated sheets and an outlet formed on the top surface of the packaging bag and extending in the first direction, and the outlet is the first. A first slit extending in the first direction so as to be convex from one side to the other side in the second direction intersecting the one direction, and continuous to both ends of the first slit, respectively, from the first slit to the first slit. A sheet package having a second slit extending from one side of the second direction to the other side so as to be curved toward a side away from the direction.

According to one aspect of the present invention, it is possible to provide a sheet package excellent in taking out a sheet.

It is a figure which shows the sheet package which concerns on embodiment (1st Embodiment) of this invention. It is the figure which looked at the sheet package body which concerns on 1st Embodiment from above. It is a figure which shows the outlet in the sheet package which concerns on 1st Embodiment. It is a figure which shows the end part of the outlet in the sheet package which concerns on 1st Embodiment. It is a figure which shows the outlet after opening in the sheet package | body which concerns on 1st Embodiment. It is a figure which shows the use state of the sheet package which concerns on 1st Embodiment. It is the figure which looked at the vicinity of the outlet of FIG. 6 from the left side. It is the figure which looked at the vicinity of the outlet of FIG. 6 from the front. It is a figure which shows the outlet in the sheet package which concerns on 2nd Embodiment. It is a figure which shows the outlet after opening in the sheet package | body which concerns on 2nd Embodiment. It is a figure which shows the conventional sheet package (the outlet which was made up of the linear slits). It is a figure which shows the conventional sheet package (the outlet which was made up of elliptical slits).

An embodiment of the present invention will be described in detail with reference to the drawings. The parts common to each figure may be designated by the same reference numerals and description thereof may be omitted. Also, for ease of understanding, the scale of each member in each drawing may differ from the actual scale.

In this specification, a three-dimensional orthogonal coordinate system in three axial directions (X direction, Y direction, Z direction) is used, and the longitudinal direction or the left-right direction (hereinafter referred to as the first direction) of the sheet package is defined as the X direction. , The lateral direction or the depth direction (hereinafter referred to as the second direction) is the Y direction, and the height direction or the vertical direction is the Z direction. Further, “upper” indicates the upper side of the top surface of the packaging bag in the height direction (Z direction) of the sheet package.

FIG. 1 is a diagram showing a sheet package according to the first embodiment of the present invention. FIG. 2 is a view of the sheet package according to the first embodiment as viewed from above. FIG. 3 is a diagram showing an outlet in the sheet package according to the first embodiment, FIG. 4 is a diagram showing an end portion of the outlet, and FIG. 5 is a diagram showing an outlet after opening. Is. FIG. 6 is a diagram showing a usage state of the sheet package according to the first embodiment, FIG. 7 is a view of the vicinity of the outlet of FIG. 6 from the left side, and FIG. 8 is a diagram of FIG. It is the figure which looked at the vicinity of the exit from the front.

As shown in FIG. 1, the sheet package 100 according to the first embodiment has a packaging bag 10 and an outlet 20. The sheet package 100 is an example of the sheet package according to the present invention. Further, the packaging bag 10 is an example of a packaging bag constituting the sheet packaging body according to the present invention, and the outlet 20 is an example of an outlet formed in the packaging bag.

A plurality of (or a plurality of sets) of sheets S are housed in the packaging bag 10. As shown in FIG. 1, the sheet S is housed in the packaging bag 10 as a laminated body SL (hereinafter, referred to as a sheet laminated body) in which a plurality of sheets (or a plurality of sets) of the sheets S are laminated. The sheet laminate SL is housed in the packaging bag 10 so that the stacking direction (SD direction) of the sheets S is the height direction (Z direction). In the sheet laminate SL, the sheets S can be pulled out one by one (or one set at a time) through the outlet 20 (opening OP) formed in the packaging bag 10 (see FIG. 6).

From the viewpoint of pulling out one or one set of sheets S, the sheet laminate SL is preferably one in which each sheet S is alternately laminated in a folded state (so-called pop-up type sheet laminate SL). Further, the form of the sheet laminated body SL is not limited to the one that can be pulled out in a pop-up manner, and a plurality of sheets (or a plurality of sets) of sheets S are simply laminated or each sheet S is laminated in a folded state. But it may be.

The dimensions of the sheet laminate SL are such that the length of the sheet package 100 in the first direction (X direction) is 80 mm or more and 250 mm or less, and the depth direction (Y) orthogonal to the first direction (X direction) of the sheet package 100. The length in the direction) can be 50 mm or more and 130 mm or less, and the height in the height direction (Z direction) can be 10 mm or more and 90 mm or less. Such a laminate of tissue paper can be produced, for example, by a rotary type or a multi-stand type interfolder.

The use of the sheet S is not particularly limited, and can be applied to, for example, sanitary tissue paper such as tissue paper, toilet paper, kitchen paper, and paper towel. These hygienic tissue papers also include hygienic tissue papers containing moisturizing ingredients (eg, lotion tissue paper, etc.). The use of the sanitary tissue paper constituting the sheet S is not particularly limited, and can be applied to any of industrial use, household use, and portable use. Among these, the sheet package 100 of the present embodiment is preferably used for household tissue paper.

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

The material of the sheet S is not particularly limited, but for example, a sheet such as paper, non-woven fabric, or cloth can be used, and paper (paper sheet) is preferable. When the sheet S is a paper sheet, a base paper containing pulp as a main raw material is used. As the pulp composition, a known composition in a paper sheet 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.

The pulp composition of the sheet S (paper sheet) is not particularly limited. For example, softwood pulp such as NBKP (softwood kraft pulp) and NUKP (unbleached softwood pulp) and hardwood pulp such as LBKP (hardwood kraft pulp) and LUKP (hardwood unbleached pulp) may be used in an arbitrary ratio. Can be done. The ratio of softwood pulp to hardwood pulp is not limited, but is preferably 10:90 to 80:20, and more preferably the ratio of softwood pulp to hardwood pulp is higher. Further, used 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, depending on number of plies, in the case of paper 5 g / ^{m 2} or more 80 g / ^{m 2} or less, those of 20 g / ^{m 2} or more 100 g / ^{m 2} or less in the case of non-woven fabric desirable. The basis weight is measured in accordance with the provisions of JIS P 8124.

The thickness of the sheet S (paper sheet) is not particularly limited, and the paper thickness measured in an environment conforming to the provisions of JIS P 8111 (1998) can be adopted. For example, the paper thickness of the paper sheet constituting the sheet S can be 50 μm or more and 500 μm or less, preferably 60 μm or more and 330 μm or less per 2 plies.

Further, the sheet S (paper sheet) may be embossed. Such embossing is a known method of laminating a plurality of sheets (or a plurality of sets) of paper sheets by pressing an embossing roll (not shown) against both ends of the paper sheet by a known contact embossing method, edge embossing method, or the like. A pin (not shown) is pierced into a paper sheet by a pin embossing method to form pin embossing on one surface of the paper sheet, and a water-soluble adhesive (starch, etc.) is heated and melted by a known embossing method. Then, there are those that form embossing by adhering laminated paper sheets (not shown).

The form of the packaging bag 10 is not particularly limited, and can be formed of, for example, a flexible film. Further, the packaging bag 10 is manufactured by so-called caramel packaging. Specifically, both ends of the tubular flexible film are formed by folded and bonded (sealed) sealing portions 30 and 40 (see FIG. 1). The packaging form of the sheet packaging body 100 is not limited to such caramel packaging, and both ends or one end of the tubular flexible film are sealed in a gusset shape by a heat seal. (Manufactured in so-called pillow packaging) may be used.

The material of the flexible film forming the packaging bag 10 is not particularly limited, and for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), polyvinyl chloride (PVC). , Ethylene-vinyl acetate copolymer (EVA), polypropylene (PA) and other resins can be used.

Among these flexible films, polyethylene, polypropylene, polyethylene terephthalate and the like are preferable from the viewpoints of being flexible, excellent in handleability, high sealing property when heat-sealed, and inexpensive. Further, polyethylene is preferable from the viewpoint of being odorless, excellent in water resistance and chemical resistance, and capable of mass production at low cost. As the polyethylene, high-density polyethylene, low-density polyethylene and the like can be used. Further, polypropylene is preferable from the viewpoints of being robust, easy to mold, good color development at the time of printing, and being able to impart gloss.

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

The thickness of the flexible film forming the packaging bag 10 is not particularly limited, and is preferably 20 μm or more and 100 μm or less, and more preferably 25 μm or more and 70 μm or less. By setting the thickness of the flexible film to 20 μm or more, sufficient strength as a packaging bag 10 in which the sheet S is housed can be ensured. Further, by setting the thickness of the flexible film to 100 μm or less, the flexibility and lightness of the packaging bag 10 can be ensured, and the cost can be suppressed.

The material for forming the packaging bag 10 is not limited to the resin material such as the flexible film described above, and a paper material may be used. The materials forming the packaging bag 10 include biodegradable materials (biodegradable plastics, biodegradable paper, etc.) and biomass materials (renewable biological organic resources such as biomass film, excluding fossil resources). ) Can be used.

In the sheet packaging body 100 of the present embodiment, the packaging bag 10 has a top surface 11, a bottom surface 12, a front surface 13, a back surface 14, a side surface 15, and a side surface 16. In the sheet package 100, the top surface 11 and the bottom surface 12 face each other in the vertical direction (Z direction), the front surface 13 and the back surface 14 face each other in the front-rear direction (Y direction), and the side surface 15 and the side surface 16 face each other in the left-right direction (X direction). ). The side surface 15 and the side surface 16 are continuous with any of the top surface 11, the bottom surface 12, the front surface 13, and the back surface 14 (see FIG. 1).

Further, the outlet 20 is formed on the top surface 11 of the packaging bag 10 and extends in the first direction (X direction). Specifically, the outlet 20 is the center 11a of the top surface 11 of the packaging bag 10 in the first direction (X direction) of the sheet packaging body 100 and the top surface 11 of the packaging bag 10 in the second direction (Y direction). It is located at the center 11b and extends along the first direction (X direction) (see FIG. 1). The sheet S is pulled out from the outlet 20 (see FIG. 6).

In the first direction (X direction), the dimension (length L2) of the outlet 20 can be arbitrarily determined according to the capacity of the packaging bag 10 and the dimension of the sheet S. For example, the length L2 of the outlet 20 in the left-right direction (X direction) with respect to the width (length L1) of the packaging bag 10 in which the sheet S is housed can be 100% or less, preferably 5%. It is 80% or more, more preferably 10% or more and 75% or less (see FIG. 2).

The outlet 20 is formed to include a first slit 21 extending in the first direction (X direction). In this embodiment, the first slit 21 and the

second slits

22 and 23 are provided. The first slit 21 is an example of the first slit forming a part of the outlet in the sheet package according to the present invention. Further, the

second slits

22 and 23 are examples of the second slits forming another part of the outlet in the sheet package according to the present invention.

The first slit 21 is convex from one side (the back surface 14 side of the packaging bag 10) to the other side (the front surface 13 side of the packaging bag 10) in the second direction (Y direction) that intersects the first direction (X direction). It extends in the first direction (X direction) so as to be. Here, the first direction (X direction) indicates a direction along a predetermined one direction on the top surface 11 of the packaging bag 10. The second direction (Y direction) that intersects the first direction (X direction) is a direction that is orthogonal to a direction along a predetermined one direction on the top surface 11 of the packaging bag 10 or a direction that intersects the streaks. Shown.

Further, the fact that the first slit 21 is convex from one side to the other side in the second direction (Y direction) means that all or a part of the first slit 21 is formed from the back surface 14 side of the packaging bag 10 along the second direction (Y direction). It is shown that the packaging bag 10 is formed so as to be convex toward the front surface 13 side. In the present embodiment, the entire first slit 21 is convex from one side (the back surface 14 side of the packaging bag 10) in the second direction (Y direction) to the other side (the front surface 13 side of the packaging bag 10). It extends in the first direction (X direction) (see FIGS. 2 and 3).

The form of the first slit 21 is not particularly limited, and can be configured by, for example, a continuous notch, an elongated opening, or the like. Further, the first slit 21 may be formed by breaking a perforation formed by a plurality of cuts. In the present embodiment, as shown in FIGS. 1 to 4, the first slit 21 formed on the top surface 11 of the packaging bag 10 is formed by the perforation M1. In the present embodiment, by breaking the first slit 21 (perforation M1), the top surface 11 of the packaging bag 10 is opened in the first direction (X direction), and a part of the opening OP can be formed. (See FIG. 6).

The first slit 21 includes a base portion 21a extending along the first direction (X direction) and ends 21b and 21c located on the back surface 14 side of the packaging bag 10 continuously with the ends G1 and G2 of the base portion 21a. Has. As a result, the first slit 21 is formed in a convex shape, and the base portion 21a constitutes the top portion V (see FIG. 3).

Further, the first slit 21 (perforation M1) forming a part of the outlet 20 is configured by alternately arranging cuts C1 and ties T1 (see FIG. 3). The tie T1 is an uncut portion between two adjacent cuts C1.

In the first slit 21 (perforation M1), the length of the cut C1 and the length of the tie T1 are arbitrary. The length of each cut C1 can be 0.8 mm or more and 5.0 mm or less, preferably 1.5 mm or more and 4.5 mm or less, and more preferably 2.5 mm or more and 3.5 mm or less. The length of each tie T 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 second slits 22 and 23 are curved from one side (the back surface 14 side of the packaging bag 10) in the second direction (Y direction) so as to be curved toward the side away from the first slit 21 in the first direction (X direction). It extends to (the front 13 side of the packaging bag 10). Here, to bend toward the side away from the first slit 21 in the first direction (X direction) means that the second slit 22 bends from the first slit 21 toward the side surface 15 of the packaging bag 10 so as to be convex. It is shown that the second slit 23 bends from the first slit 21 toward the side surface 16 of the packaging bag 10 so as to be convex.

The form of the

second slits

22 and 23 is not particularly limited, and can be configured by, for example, a continuous notch, an elongated opening, or the like. Further, the

second slits

22 and 23 may be configured by breaking the perforations formed by the plurality of cuts. In the present embodiment, as shown in FIGS. 1 to 4, the

second slits

22 and 23 formed on the top surface 11 of the packaging bag 10 are formed by the perforations M2. Then, by breaking the second slits 22 and 23 (perforations M2), the top surface 11 of the packaging bag 10 is curved in the second direction so as to be curved toward the side away from the first slit 21 in the first direction (X direction). It is opened in the (Y direction) and can form a part of the opening OP (see FIG. 6).

Specifically, the second slit 22 is composed of one end 22a, the other end 22b, and a base portion 22c. The second slit 22 has one end 22a connected to the first slit 21 and the other end 22b separated from the convex top V of the first slit 21 in the second direction (Y direction) on the other side (front surface 13 of the packaging bag 10). Located on the side) (see FIGS. 2-4).

Further, the second slit 23 is composed of one end 23a, the other end 23b, and the base 23c. The second slit 23 has one end 23a connected to the first slit 21 and the other end 23b separated from the convex top V of the first slit 21 in the second direction (Y direction) on the other side (front surface 13 of the packaging bag 10). Located on the side) (see FIGS. 2 to 3).

Here, the convex top V of the first slit 21 is in the second direction (Y direction) from the edge 11c of the top surface 11 located on the other side (front 13 side of the packaging bag 10) in the second direction (Y direction). ) Is the portion where the distance D1 to the first slit 21 is the shortest (the portion where the distance from the edge 11c of the top surface 11 is D2) (see FIG. 2). Further, the fact that one ends 22a and 23a are connected to the first slit 21 indicates that the one ends 22a and 23a of the

second slits

22 and 23 are continuously formed at both

end portions

21b and 21c of the first slit 21, respectively.

Further, it is said that the other ends 22b and 23b are located on the other side (front 13 side of the packaging bag 10) away from the convex top V of the first slit 21 in the second direction (Y direction) in the second direction (Y direction). The distance D3 from the edge 11c of the top surface 11 located on the other side (the front 13 side of the packaging bag 10) to the other ends 22b and 23b of the

second slits

22 and 23 along the second direction (Y direction). , The distance D2 from the edge 11c of the top surface 11 to the convex top V of the first slit 21 is shorter than the distance D2 (see FIG. 2).

In the sheet packaging body 100, in the second direction (Y direction), the width W2 of the region where the first slit 21 exists is set to 1% or more and 25% or less with respect to the width W1 of the top surface 11 of the packaging bag 10. It is possible, preferably 3% or more and 20% or less, and more preferably 5% or more and 15% or less (see FIG. 2). Further, in the second direction (Y direction), the width W3 of the region where the

second slits

22 and 23 are curved or extended shall be 5% or more and 35% or less with respect to the width W1 of the top surface 11 of the packaging bag 10. It is possible, preferably 10% or more and 30% or less, and more preferably 15% or more and 25% or less (see FIG. 2).

Further, with respect to the distance D2 from the edge 11c of the top surface 11 to the convex top V of the first slit 21, the

second slits

22 and 23 along the second direction (Y direction) from the edge 11c of the top surface 11 The distance D3 to the other ends 22b and 23b can be 60% or more and 95% or less, preferably 75% or more and 95% or less, and more preferably 80% or more and 90% or less.

The shape of the curved

second slits

22 and 23 is arbitrary, but preferably arcuate. Here, the arc shape means that the slit bends so as to draw a part of a circle. In the present embodiment, the arc-shaped second slits 22 and 23 are formed in a substantially semicircular shape (radian θ = about 180 °) (see FIG. 4). The radian θ of the arc-shaped second slits 22 and 23 is not limited to this angle, and can be 90 ° or more and 270 ° or less, preferably 120 ° or more and 240 ° or less, and more preferably 150 ° or more and 210. It is below °.

Further, the second slits 22 and 23 (perforations M2) forming a part of the outlet 20 are configured by alternately arranging cuts C2 and ties T2 (see FIG. 3). The tie T2 is an uncut portion between two adjacent cuts C2. In the present embodiment, the curved

second slits

22 and 23 are composed of two arcuate cuts C2, and the two cuts C2 are connected by one tie T2 (see FIG. 3).

In the present embodiment, as described above, the outlet 20 formed on the top surface 11 of the packaging bag 10 is located from one side (the back surface 14 side of the packaging bag 10) to the other side (packaging) in the second direction (Y direction). By having the first slit 21 extending in the first direction (X direction) so as to be convex on the front surface 13 side of the bag 10, the outlet 20 (opening OP) is covered when the outlet 20 is opened. A part of the top surface 11 (second flap F2 described later) tends to be rolled upward (or easily bent) in the vicinity of the first slit 21. As a result, in the present embodiment, the outlet 20 can be easily opened with a fingertip, and the sheet S is taken out from the inside of the packaging bag 10 (the first first sheet (or the first set) of the sheets S housed in the packaging bag 10). (See FIGS. 6 to 8).

In the present embodiment, the outlet 20 formed on the top surface 11 of the packaging bag 10 is curved in the second direction (Y direction) so as to be curved toward the side further away from the first slit 21 in the first direction (X direction). The top surface 11 that covers the outlet 20 (opening OP) by having the

second slits

22 and 23 extending from one side (the back surface 14 side of the packaging bag 10) to the other side (the front surface 13 side of the packaging bag 10). (The first flap F1 described later) is likely to be rolled upward (or easily bent) even in the vicinity of the

second slits

22 and 23. As a result, in the present embodiment, when the sheet S is pulled out from the outlet 20, the opening width of the outlet 20 (opening OP) is widened in the vicinity of either the first slit 21 or the

second slits

22 and 23, and the outlet is opened. The sheet S can be smoothly taken out from No. 20 (see FIGS. 6 to 8).

In the present embodiment, since the

second slits

22 and 23 that are curved are provided at both ends 21b and 21c of the first slit 21, the second slit that is curved when the outlet 20 is opened (or opened). It becomes easy to put a finger on both ends E1 and E2 of the outlet 20 corresponding to 22 and 23 in the first direction (X direction). Therefore, the outlet 20 can be opened (or opened) by using both ends E1 and E2 of the outlet 20 as triggers. Therefore, in the present embodiment, the opening (or opening) of the outlet is easy (FIGS. 3 and 6).

In the present embodiment, both ends E1 and E2 of the outlet 20 in the first direction (X direction) are outside the outlet 20 in the first direction (X direction) corresponding to the curved second slits 22 and 23 (in the X direction). Since it is curved toward the side surfaces 15 and 16 of the packaging bag 10, it is possible to alleviate the friction between both ends E1 and E2 of the outlet 20 and the sheet S to be pulled out. As a result, when the sheet S is pulled out, it is possible to prevent the sheet S from being caught in the ends E1 and E2 of the outlet 20 and the sheet S from being torn. In the present embodiment, the sheet S can be smoothly taken out from the outlet 20 from such a viewpoint as well (see FIGS. 6 to 8).

In the present embodiment, when the sheet S is pulled out from the outlet 20, a part of the top surface 11 with respect to the own weight of the sheets S held in the first slit 21 and the

second slits

22 and 23 of the outlet 20. (The first flap F1 and the second flap F2, which will be described later) can be bent (or deformed) in the vicinity of the

slits

21, 22, and 23. Thereby, in the present embodiment, the holding force of the sheet S at the outlet 20 is maintained, and it is possible to prevent the sheet S from falling into the packaging bag 10 during use (hereinafter, referred to as a drop of the sheet S) (FIG. FIG. 6 to 8).

In the present embodiment, when the sheet S is pulled out from the outlet 20, a part of the top surface 11 bends (or deforms) in the vicinity of the first slit 21 and the

second slits

22 and 23 as described above. Then, the frictional force (or resistance force) applied to the outlet 20 can be released (or scattered) around the outlet 20. As a result, even if the remaining amount of the sheet S housed in the packaging bag 10 is reduced (even if the weight of the sheet packaging body 100 is reduced), the entire packaging bag 10 is lifted when the sheet S is pulled out from the outlet 20. (Hereinafter referred to as lifting of the packaging bag 10) can be prevented (see FIGS. 6 to 8).

In the present embodiment, as described above, a part of the top surface 11 bends (or deforms) in the vicinity of the first slit 21 and the

second slits

22 and 23, so that the sheet S drawn out from the outlet 20 is formed. It is held in a well-balanced manner in the vicinity of the

slits

21, 22, and 23. As a result, the sheet S drawn out from the outlet 20 can be held in the outlet 20 in a state where the sheet S stands up above the outlet 20. That is, it is possible to prevent the seat S from being held in a tilted state or a tilted state (see FIGS. 6 to 8).

In the present embodiment, since the outlet 20 is composed of the first slit 21 and the

second slits

22 and 23, the outlet 20 that opens to the top surface 11 is not left open. Therefore, in the present embodiment, it is difficult for foreign matter such as dust and dirt to enter the packaging bag 10 from the outlet 20 (see FIGS. 6 to 8).

second slits

22, 23, each slit 21, 22, 23 can directly form the opening OP of the outlet 20. Therefore, in the present embodiment, broken pieces (shards, small pieces, fragments, etc. separated from the packaging bag) are not generated when the outlet 20 is opened (see FIGS. 1 to 8).

Further, in the present embodiment, as described above, one ends 22a and 23a of the

second slits

22 and 23 are connected to the first slit 21, and the other ends 22b and 23b are second from the convex top V of the first slit 21. By being located on the other side (front 13 side of the packaging bag 10) away from the direction (Y direction), a part of the top surface 11 (first flap F1 described later) is made large in the vicinity of the

second slits

22 and 23. It can be flexed (or deformed). As a result, when the sheet S is pulled out from the outlet 20, the opening width of the outlet 20 is widened in the vicinity of the

second slits

22 and 23, and the sheet S can be smoothly taken out from the outlet 20 with high accuracy. This can be achieved (see FIGS. 6-8).

In the present embodiment, as described above, a part of the top surface 11 is largely bent (or deformed) in the vicinity of the

second slits

22 and 23, so that the holding force of the sheet S at the outlet 20 is further maintained. It is possible to prevent the sheet S from falling with high accuracy. Further, the frictional force (or resistance force) applied to the outlet 20 can be further released (or scattered) around the outlet 20, and the packaging bag 10 is lifted even if the sheet S housed in the packaging bag 10 is low. Can be prevented with high accuracy (see FIGS. 6 to 8).

second slits

22 and 23, so that the sheet S drawn out from the outlet 20 is referred to as the first slit 21. The second slits 22 and 23 can be held in a more balanced manner. As a result, it is possible to realize with high accuracy that the sheet S drawn out from the outlet 20 is held in the outlet 20 in a state where the sheet S is raised above the outlet 20 (see FIGS. 6 to 8). ..

Further, in the present embodiment, by making the shapes of the

second slits

22 and 23 arcuate, the edges of both ends E1 and E2 of the outlet 20 in the first direction (X direction) can be arcuate. it can. As a result, the rubbing of the sheet S against both ends E1 and E2 of the outlet 20 is further alleviated, and when the sheet S is pulled out, the sheet S is caught on the end of the outlet 20 or the sheet S is torn. It can be prevented with high accuracy (Fig. 6).

From a different point of view, the sheet package 100 of the present embodiment is surrounded by the first slit 21, the

second slits

22, 23, and the first base end (base end B1) extending in the first direction (X direction). It has one flap F1 (FIGS. 5 and 6). The first flap F1 has a linear base end B1 (first base end) connected to the top surface 11 on the other side (front 13 side of the packaging bag 10) in the second direction (Y direction), and an outlet 20. It has a concave tip A1 (recess R) that serves as a free end on the inside (see FIG. 5). The base end B1 is a portion shown by a broken line in FIG.

Here, the flap is formed on the top surface 11 of the packaging bag 10 and is a part of the packaging bag 10 that is bent (or deformed) by the frictional force (or resistance force) when the sheet S is pulled out from the outlet 20. It is composed. Further, the base end indicates an end portion of the flap which is a starting point at which the flap bends (or deforms).

Further, the sheet package 100 has a second flap F2 surrounded by a first slit 21 and a second base end (base end B2) extending in the first direction (X direction). The second flap F2 has a linear base end B2 (second base end) connected to the top surface 11 on one side (the back surface 14 side of the packaging bag 10) in the second direction (Y direction), and an outlet 20. It has a convex tip A2 (convex P) that serves as a free end on the inside (see FIG. 5). The base end B2 is a portion shown by a broken line in FIG.

The sheet package 100 further has a third flap F3 surrounded by

second slits

22 and 23 and a third base end (base end B3) extending in the second direction (Y direction). The third flap F3 is formed at both ends 21b and 21c of the first slit 21, and extends from one ends 22a and 23a of the

second slits

22 and 23 along the other ends 22b and 23b (third). It has a base end) and an arcuate edge E3 which is a free end inside the outlet 20. The base end B3 is a portion shown by a broken line in FIG.

In the present embodiment, as described above, by providing the first slit 21, the

second slits

22, and 23 on the top surface 11 of the packaging bag 10, the first slit 21, the

second slits

22, 23, and the first slit 21 are provided. The first flap F1 surrounded by the base end (base end B1) can be configured. In such a first flap F1, the vicinity of the first slit 21 is concave inside the outlet 20 (recessed portion R is formed), and the vicinity of the

second slits

22 and 23 is easily bent (or easily deformed). It becomes. As a result, in the present embodiment, the sheet S is held at the outlet 20 without hindering the smooth withdrawal of the sheet S, and the drop of the sheet S and the lifting of the packaging bag 10 are suppressed (FIGS. 5 to 5). 8).

In the present embodiment, the outlet 20 can be covered with the first flap F1 by surrounding the first flap F1 with the first slit 21, the

second slits

22, 23, and the first base end (base end B1). it can. Therefore, in the present embodiment, the outlet 20 is not left open, and foreign matter such as dust and dirt can be prevented from entering the packaging bag 10 from the outlet 20 (see FIGS. 5 to 8).

In the present embodiment, the first flap F1 is surrounded by the first slit 21, the

second slits

22, 23, and the first base end (base end B1), so that the first flap F1 is packaged via the base end B1. It is provided at the outlet 20 in a state of being connected to the top surface 11 of the bag 10. Therefore, in the present embodiment, it is possible to prevent the occurrence of broken pieces when the outlet 20 is opened (see FIGS. 1 to 8).

Further, in the present embodiment, as described above, by providing the above-mentioned first slit 21 and the

second slits

22 and 23 on the top surface 11 of the packaging bag 10, the first slit 21 and the first direction (X direction) are provided. A second flap F2 surrounded by a second base end (base end B2) extending to can be formed together with the first flap F1 (see FIG. 5).

In such a second flap F2, the vicinity of the first slit 21 becomes convex inward of the outlet 20 (convex portion P is formed), and the second flap F2 is arranged side by side with the first flap F1 in the second direction (Y direction). To. As a result, the second flap F2 can hold the sheet S drawn out from the outlet 20 in a well-balanced manner with the first flap F1. Therefore, in the present embodiment, it is possible to realize with high accuracy that the sheet S drawn out from the outlet 20 is held in the outlet 20 in a state where the sheet S is raised above the outlet 20 (FIGS. 5 to 5 to 5). (See FIG. 8).

In the present embodiment, the second flap F2 is surrounded by the first slit 21 and the second base end (base end B2), so that the outlet 20 can be covered with the second flap F2 together with the first flap F1. Therefore, even in the present embodiment, the outlet 20 is not left open, and foreign matter such as dust and dirt can be prevented from entering the packaging bag 10 from the outlet 20 with high accuracy (see FIGS. 5 to 8). ..

In the present embodiment, the second flap F2 is surrounded by the first slit 21 and the second base end (base end B2), so that the second flap F2 is placed on the top surface 11 of the packaging bag 10 via the base end B2. It is provided at the outlet 20 in a connected state. Therefore, also in the present embodiment, it is possible to prevent the occurrence of broken pieces when the outlet 20 is opened (see FIGS. 1 to 8).

second slits

22 and 23 on the top surface 11 of the packaging bag 10, the

second slits

22 and 23 and the second direction (Y). A third flap F3 surrounded by a third base end (base end B3) extending in the direction) can be configured (see FIG. 5).

Such a third flap F3 constitutes both ends of the first flap F1 in the first direction (X direction), and the vicinity of the

second slits

22 and 23 constitutes a portion that is easily bent (or easily deformed). Can be done. As a result, in the present embodiment, the sheet S is further held at the outlet 20 without being hindered from pulling out the sheet S, and the drop of the sheet S and the lifting of the packaging bag 10 are suppressed with higher accuracy (FIG. FIG. 5 to 8).

Further, the third flap F3 can hold the sheet S pulled out from the outlet 20 together with the first flap F1 in a well-balanced manner with the second flap F2. Therefore, in the present embodiment, it is possible to realize with higher accuracy that the sheet S drawn out from the outlet 20 is held in the outlet 20 in a state where the sheet S is raised above the outlet 20 (FIG. 5). -See FIG. 8).

Further, in the present embodiment, the third flap F3 is surrounded by the

second slits

22 and 23 and the third base end (base end B3), so that the outlet 20 is formed together with the first flap F1 and the second flap F2. It can be covered with 3 flaps F3. Therefore, even in the present embodiment, the outlet 20 is not left open, and foreign matter such as dust and dirt can be prevented from entering the packaging bag 10 from the outlet 20 with high accuracy (see FIGS. 5 to 8). ..

Further, in the present embodiment, the third flap F3 is surrounded by the

second slits

22 and 23 and the third base end (base end B3), so that the third flap F3 is surrounded by the packaging bag 10 via the first flap F1. It is provided at the outlet 20 in a state of being connected to the top surface 11 of the above. Therefore, also in the present embodiment, it is possible to prevent the occurrence of broken pieces when the outlet 20 is opened (see FIGS. 1 to 8).

FIG. 9 is a diagram showing an outlet in the sheet package according to the second embodiment. FIG. 10 is a diagram showing an outlet after opening the sheet package according to the second embodiment. In the second embodiment, the parts common to the first embodiment are designated by the reference numerals used in FIGS. 3, 5, and 6, and the description thereof will be omitted.

In the sheet package 100 according to the second embodiment, at least the convex top V of the first slit 21 is curved (see FIG. 9). Here, the fact that at least the convex top V is curved means that the portion of the first slit 21 other than the convex top V may be curved or linear. In the present embodiment, the entire first slit 21 including the convex top V is formed in a curved shape (see FIG. 9).

In the present embodiment, by forming the convex top V of the first slit 21 into a curved shape in this way, the top V of the first slit 21 is less likely to become a resistance to the sheet S drawn out from the outlet 20, and is taken. The top V of the first slit 21 is likely to be caught by the sheet S held at the outlet 20. Therefore, according to the present embodiment, it is possible to prevent the sheet S from falling and the packaging bag 10 from being lifted while maintaining the smooth removal of the sheet S from the outlet 20.

From a different point of view, the sheet package 100 according to the second embodiment is surrounded by the first slit 21, the

second slits

22, 23, and the first base end (base end B1) extending in the first direction (X direction). It has a first flap F1 that is used. The first flap F1 has a linear base end B1 (first base end) connected to the top surface 11 on the other side (front 13 side of the packaging bag 10) in the second direction (Y direction), and an outlet 20. It has a concave tip A1 (recess R) that serves as a free end on the inside.

Further, the sheet package 100 according to the second embodiment has a second flap F2 surrounded by a first slit 21 and a second base end (base end B2) extending in the first direction (X direction). The second flap F2 has a linear base end B2 (second base end) connected to the top surface 11 on one side (the back surface 14 side of the packaging bag 10) in the second direction (Y direction), and an outlet 20. It has a convex tip A2 (convex P) that serves as a free end on the inside.

The sheet package 100 according to the second embodiment further has a third flap F3 surrounded by the

second slits

22 and 23 and the third base end (base end B3) extending in the second direction (Y direction). The third flap F3 is formed at both ends 21b and 21c of the first slit 21, and extends from one ends 22a and 23a of the

second slits

22 and 23 along the other ends 22b and 23b (third). It has a base end) and an arcuate edge E3 which is a free end inside the outlet 20.

In the sheet package 100 according to the second embodiment, the tip A1 (recess R) of the first flap F1 is curved so that the convex top V corresponds to the curved first slit 21. Further, the tip A2 (convex portion P) of the second flap F2 is also curved.

As a result, in the second embodiment, the top V of the first slit 21 is less likely to become a resistance to the sheet S drawn out from the outlet 20, and the first slit 21 is less likely to become a resistance to the sheet S held in the outlet 20. The top V is easily caught. Therefore, according to the second embodiment, it is possible to prevent the sheet S from falling and the packaging bag 10 from being lifted with high accuracy while maintaining the smooth removal of the sheet S from the outlet 20.

Hereinafter, the present invention will be specifically described with reference to Examples. The evaluation of Examples and Comparative Examples was carried out by the following tests.

[Sheet package (test body)]
As a test body, a sheet package 100 in which a sheet laminate SL in which a plurality of sheets S were laminated was housed in a packaging bag 10 was prepared (see FIGS. 1, 11, and 12). ^{The sheet laminated body SL is a tissue paper (basis weight: 10.7 g / m 2} , paper thickness: 110 μm, number of plies: 2 plies, which is laminated so that the sheets S can be folded alternately and pulled out one by one in a pop-up manner. The number of sets: 150 sets (300 sheets), dimensions: height about 40 mm, width about 178 mm, length about 100 mm) were used. Further, the sheet laminated body SL was housed in the packaging bag 10 so that the laminating direction (SD direction) was the height direction (Z direction) of the sheet packaging body 100 (see FIGS. 1, 11, and 12). Further, as the material of the packaging bag 10, polyethylene (PE) having a thickness of 50 μm was used. In the packaging form of the packaging bag 10, both side surfaces 15 and 16 of the sheet packaging body 100 are sealed with caramel packaging (seal

portions

30 and 40 are formed). The dimensions of the packaging bag 10 are a length L1 of about 180 mm in the first direction (X direction), a width W1 of about 100 mm in the depth direction (Y direction), and a height of about 40 mm in the height direction (Z direction) (FIG. 2). reference). Further, an outlet 20 extending in the first direction (X direction) is formed on the top surface 11 of the packaging bag 10 at a perforation (see FIGS. 1, 11, and 12).

[Retraction resistance value]
The above-mentioned test body (sheet package 100) is placed on a flat mounting surface, and the first set of tissue paper (sheet S) is pulled out from the outlet 20 (opening OP) of the packaging bag 10 by about 40 mm and pulled out. The upper tip of S (the central portion of the sheet package 100 in the first direction (X direction)) is sandwiched between eyeball clips (manufactured by Kokuyo Co., Ltd., "Clear-17"), and one of the handle portions of this eyeball clip. The hook of the push-pull gauge (IMADA DEGTALFORCE GAUGE Z2-20, manufactured by Imada Co., Ltd.) was hooked in the hole, and the sheet S was pulled out vertically at a constant speed over a period of 0.4 seconds or more and 0.6 seconds or less. At that time, the average value (unit: N) of the take-out resistance values of the first to fifth sets and the take-out resistance value (unit: N) of the sixth to tenth sets were measured. When the take-out resistance value was 1N or less, it was evaluated as good (the sheet S was easy to take out), and when it exceeded 1N, it was evaluated as not good (the sheet S was difficult to take out).

[Drop occurred]
When the sheet S is continuously pulled out from the first set to the last set of the sheet laminate SL through the outlet 20 of the packaging bag 10, the sheet S next to the drawn sheet S is placed in the packaging bag 10 in the sheet S. The number of sheets that fell first (first sheet) and the number of times that the sheet fell (times) were measured. The average value of the number of depressions is calculated from the results of five tests, and if the average value is 5.0 or less, it is evaluated as good (difficult to decline), and the average value exceeds 5.0. In the case, it was evaluated as not good (easy to drop).

[Lift]
When the sheets S were continuously pulled out from the sheet laminate SL from the first set to the last set through the outlet 20 of the sheet package 100, the number of sets of the first sheet S lifted by the packaging bag 10 was measured. When it did not lift, it was evaluated as good (difficult to lift), and when it did lift, it was evaluated as not good (easy to lift).

[Sheet independence]
The sheet independence when the 11th to 20th sets (10 sets in total) of the sheets S were pulled out one by one from the sheet laminated body SL through the outlet 20 of the sheet packaging body 100 was evaluated. The sheet independence was evaluated by measuring the number of sets in which the sheet S next to the drawn sheet S stood up substantially perpendicular to the top surface 11 of the packaging bag 10 and evaluated according to the following criteria. When the sheet independence was 〇, it was evaluated as good (easy to be held when the sheet was upright), and when it was △ or ×, it was evaluated as poor (easy to be held when the sheet was tilted or tilted). ..
〇: 8 pairs or more △: 7 to 3 pairs ×: 2 pairs or less

[Occurrence of fragment]
When the outlet 20 was opened, it was confirmed that fragments (shards, small pieces, fragments, etc. separated from the packaging bag) were generated. The occurrence of fragment was evaluated as good when the fragment was not separated from the packaging bag 10 (no fragment was generated), and not good when the fragment was separated × (fragment was generated).

Hereinafter, Examples and Comparative Examples will be described.

[Example 1]
In the sheet packaging body 100, one side (back surface 14 side of the packaging bag 10) to the other side (packaging bag) of the second direction (Y direction) intersecting the first direction (X direction) on the top surface 11 of the packaging bag 10 The first slit 21 (perforation M1) extending in the first direction (X direction) so as to be convex toward the front surface 13 side of the ten, and the first slit continuous with both ends 21b and 21c of the first slit 21, respectively. It extends from one side (back surface 14 side of the packaging bag 10) of the second direction (Y direction) to the other side (front 13 side of the packaging bag 10) so as to be curved toward the side away from the first direction (X direction) from 21. An outlet 20 having second slits 22 and 23 (perforations M2) is provided. The convex top V of the first slit 21 is formed linearly along the first direction (X direction) (see FIGS. 1 to 5). The prepared test piece was evaluated for withdrawal resistance, depression, lifting, sheet independence, and occurrence of fragmentation. The results are shown in Table 1.

[Example 2]
A test body was prepared and evaluated in the same manner as in Example 1 except that the convex top V of the first slit 21 was curved (see FIGS. 9 and 10). The results are shown in Table 1.

[Comparative Example 1]
The evaluation was performed in the same manner as in Example 1 except that the outlet 20 was formed only by a linear slit (perforation M3) (see FIG. 11). The results are shown in Table 1.

[Comparative Example 2]
The evaluation was performed in the same manner as in Example 1 except that the outlet 20 was formed only by a substantially elliptical slit (perforation M4) (see FIG. 12). The results are shown in Table 1.

From Table 1, the sheet package 100 in which the outlet 20 formed on the top surface 11 of the packaging bag 10 has the first slit 21 (perforation M1) and the second slit (perforation M2) has a take-out resistance value and a drop. , Lifting, sheet independence, and generation of broken fragments were all good (Examples 1 and 2).

On the other hand, the sheet package 100 in which the outlet 20 is formed of a linear slit (perforation M3) or a substantially elliptical slit (perforation M4) has a take-out resistance value from the first set to the fifth sheet. Exceeded 1N (not good). In addition, the average value of the decline exceeded 5.0 (it was not good). Furthermore, at least one of lifting, sheet independence, and generation of fragmentation was not good (Comparative Examples 1 and 2).

From these results, the outlet is continuous with the first slit extending in the first direction so as to be convex from one side of the second direction intersecting the first direction to the other side, and both ends of the first slit. It was found that a sheet package having a second slit extending from one side in the second direction to the other side so as to be curved toward a side away from the first slit in the first direction is excellent in taking out the sheet.

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

Hereinafter, preferred embodiments of the present invention will be added.

The first aspect according to the present invention has a packaging bag for accommodating a plurality of laminated sheets, and an outlet formed on the top surface of the packaging bag and extending in the first direction. , A first slit extending in the first direction so as to be convex from one side of the second direction intersecting the first direction to the other side, and continuous to both ends of the first slit, respectively, from the first slit. A sheet package having a second slit extending from one side of the second direction to the other side so as to be curved toward a side away from the first direction.

In the present specification, the first direction indicates a direction along a predetermined direction on the top surface of the packaging bag. The second direction intersecting with the first direction indicates a direction orthogonal to a direction along a predetermined one direction on the top surface of the packaging bag or a direction along a direction intersecting the streaks. The slit is formed on the top surface of the packaging bag and is a continuous notch, an elongated opening, or the like, and the continuous notch may be formed by breaking a perforation.

In the first aspect, the outlet formed on the top surface of the packaging bag has a first slit extending in the first direction so as to be convex from one side to the other in the second direction. At the time of opening, a part of the top surface (the second flap described later) covering the outlet (opening) tends to be rolled upward (or easily bent) in the vicinity of the first slit. As a result, in the first aspect, the outlet can be easily opened with a fingertip, and the sheet can be taken out from the packaging bag (the first first sheet or the first set of sheets housed in the packaging bag is taken out, etc.). It will be easier.

Further, in the first aspect, the outlet formed on the top surface of the packaging bag extends from one side to the other side in the second direction so as to be curved toward the side further away from the first slit in the first direction. By having the slit, a part of the top surface (the first flap described later) covering the outlet (opening) is easily rolled upward (or easily bent) even in the vicinity of the second slit. As a result, in the first aspect, when the sheet is pulled out from the outlet, the opening width of the outlet (opening) is widened in the vicinity of both the first slit and the second slit, and the sheet is smoothly taken out from the outlet. Can be done.

Further, in the first aspect, since the curved second slits are provided at both ends of the first slit, the outlet corresponding to the curved second slit when the outlet is opened (or opened). It becomes easier to put your fingers on both ends of the first direction. Therefore, the outlet can be opened (or opened) by using both ends of the outlet as a trigger. Therefore, in the first aspect, opening (or opening) of the outlet is easy.

Further, in the first aspect, both ends of the outlet in the first direction are curved toward the outside in the first direction of the outlet corresponding to the curved second slit, so that both ends of the outlet are pulled out. It is possible to alleviate the rubbing against the sheet. As a result, when the sheet is pulled out, it is possible to prevent the sheet from being caught at each end of the outlet or the sheet from being torn. In the first aspect, the sheet can be smoothly taken out from the take-out port also from such a viewpoint.

Further, in the first aspect, when the sheet is pulled out from the outlet, a part of the top surface (the first flap described later) with respect to the weight of the sheet held in the first slit and the second slit of the outlet. And the second flap) can bend (or deform) in the vicinity of each slit. Thereby, in the first aspect, the holding force of the sheet at the outlet is maintained, and it is possible to prevent the sheet from falling into the packaging bag during use (hereinafter, referred to as the sheet from falling).

Further, in the first aspect, when the sheet is pulled out from the outlet, a part of the top surface bends (or deforms) in the vicinity of the first slit and the second slit as described above, so that the outlet The frictional force (or resistance force) applied to the air can be released (or scattered) around the outlet. As a result, even if the remaining amount of the sheet contained in the packaging bag is reduced (even if the weight of the sheet packaging is lightened), the packaging bag can be lifted up when the sheet is pulled out from the outlet (hereinafter referred to as the packaging bag). It can be prevented from being lifted.

Further, in the first aspect, as described above, a part of the top surface bends (or deforms) in the vicinity of the first slit and the second slit, so that the sheet pulled out from the outlet is in the vicinity of each slit. It is held in a well-balanced manner. As a result, the sheet pulled out from the outlet can be held in the outlet in a state where the sheet stands up above the outlet (it is possible to prevent the sheet from being held in a tilted state or an inclined state). ).

Further, in the first aspect, since the outlet is composed of the first slit and the second slit, the outlet that opens to the top surface cannot be left open. Therefore, in the first aspect, it is difficult for foreign matter such as dust and dirt to enter the packaging bag from the outlet.

Further, in the first aspect, since the outlet is composed of the first slit and the second slit, each slit can form the opening of the outlet as it is. Therefore, in the first aspect, broken pieces (shards, small pieces, fragments, etc. separated from the packaging bag) are not generated when the outlet is opened.

In a second aspect of the present invention, the second slit has one end connected to the first slit and the other end to the other side separated from the convex top of the first slit in the second direction. It is a sheet package to be located. In the present specification, the convex top of the first slit is the portion where the distance from the edge of the top surface located on the other side of the second direction to the first slit along the second direction is the shortest.

In the present specification, connecting one end to the first slit means that one end of the second slit is continuously formed at both ends of the first slit. Further, that the other end is located on the other side away from the convex top of the first slit in the second direction in the second direction means that the second slit along the second direction from the edge of the top surface located on the other side in the second direction. It shows that the distance to the other end is shorter than the distance from the edge of the top surface to the convex top of the first slit.

In the second aspect, one end of the second slit is connected to the first slit, and the other end is located on the other side away from the convex top of the first slit in the second direction, whereby a part of the top surface (a part of the top surface ( The first flap, which will be described later, can be greatly bent (or deformed) in the vicinity of the second slit. As a result, when the sheet is pulled out from the take-out port, the opening width of the take-out port is widened in the vicinity of the second slit, and smooth take-out of the sheet from the take-out port can be realized with high accuracy.

Further, in the second aspect, as described above, a part of the top surface is largely bent (or deformed) in the vicinity of the second slit, so that the holding force of the sheet at the outlet is further maintained and the sheet is depressed. Can be prevented with high accuracy. Further, the frictional force (or resistance force) applied to the outlet can be further released (or scattered) around the outlet, and the lifting of the packaging bag can be prevented with high accuracy.

Further, in the second aspect, as described above, a part of the top surface is greatly bent (or deformed) in the vicinity of the second slit, so that the sheet pulled out from the outlet is formed by the first slit and the second slit. Furthermore, it can be held in a well-balanced manner. As a result, it is possible to realize with high accuracy that the sheet drawn out from the outlet is held in the outlet in a state of standing above the outlet.

The third aspect according to the present invention is a sheet package in which the shape of the second slit is an arc shape. Here, the arc shape means that the slit bends so as to draw a part of a circle.

In the third aspect, by making the shape of the second slit arcuate, the edges of both ends of the outlet in the first direction can be arcuate. As a result, the rubbing of the sheet against both ends of the outlet is further alleviated, and when the sheet is pulled out, it is possible to prevent the sheet from being caught in the end of the outlet or the sheet from being torn with high accuracy.

A fourth aspect according to the present invention is a sheet package in which at least the convex top of the first slit is curved. Here, the fact that at least the convex top is curved means that the portion of the first slit other than the convex top may be curved or linear.

In the fourth aspect, by curving at least the convex top of the first slit, the top of the first slit is less likely to resist the sheet drawn out from the outlet, and the sheet is held at the outlet. On the other hand, the top of the first slit is easily caught. Therefore, according to the fourth aspect, it is possible to prevent the sheet from falling and the packaging bag from being lifted while maintaining the smooth removal of the sheet from the outlet.

A fifth aspect according to the present invention is a sheet package having a first flap surrounded by the first slit, the second slit, and the first base end extending in the first direction. In the present specification, the flap is formed on the top surface of the packaging bag and is composed of a part of the packaging bag that is bent (or deformed) by the frictional force (or resistance force) when the sheet is pulled out from the outlet. .. Further, the base end indicates an end portion of the flap which is a starting point at which the flap bends (or deforms). The first base end is configured on the other side in the second direction.

In the fifth aspect, the first slit and the second slit described above are provided on the top surface of the packaging bag to form a first flap surrounded by the first slit, the second slit, and the first base end. it can. In such a first flap, the vicinity of the first slit is recessed inside the outlet (a recess is formed), and the vicinity of the second slit is easily bent (or easily deformed). Thereby, in the fifth aspect, the sheet is held at the take-out port without hindering the smooth withdrawal of the sheet, and the falling of the sheet and the lifting of the packaging bag are suppressed.

Further, in the fifth aspect, the outlet can be covered with the first flap by surrounding the first flap with the first slit, the second slit, and the first base end. Therefore, in the fifth aspect, the outlet is not left open, and foreign matter such as dust and dirt can be suppressed from entering the packaging bag from the outlet.

Further, in the fifth aspect, the first flap is surrounded by the first slit, the second slit, and the first base end, so that the first flap is connected to the top surface of the packaging bag via the first base end. It is installed at the outlet in a closed state. Therefore, in the fifth aspect, it is possible to prevent the generation of broken pieces when the outlet is opened.

A sixth aspect according to the present invention is a sheet package having a second flap surrounded by the first slit and the second base end extending in the first direction. The second base end is configured on one side in the second direction. In the sixth aspect, by providing the above-mentioned first slit and the second slit on the top surface of the packaging bag, the above-mentioned second flap is surrounded by the first slit and the second base end extending in the first direction. It can be configured with one flap.

In such a second flap, the vicinity of the first slit becomes convex inside the outlet (a convex portion is formed), and the second flap is arranged side by side with the first flap in the second direction. As a result, the second flap can hold the sheet pulled out from the outlet in a well-balanced manner with the first flap. Therefore, in the sixth aspect, it is possible to realize with high accuracy that the sheet drawn out from the outlet is held in the outlet in a state of standing above the outlet.

Further, in the sixth aspect, since the second flap is surrounded by the first slit and the second base end, the outlet can be covered with the second flap together with the first flap. Therefore, even in the sixth aspect, the outlet is not left open, and the invasion of foreign matter such as dust and dirt from the outlet into the packaging bag can be suppressed with high accuracy.

Further, in the sixth aspect, the second flap is surrounded by the first slit and the second base end, so that the second flap is connected to the top surface of the packaging bag via the second base end. It is provided at the exit. Therefore, even in the sixth aspect, it is possible to prevent the generation of broken pieces when the outlet is opened.

A seventh aspect according to the present invention is a sheet package having a third flap surrounded by the second slit and the third base end extending in the second direction. The third base end is formed at both ends of the first slit and extends from one end to the other end of the second slit along the second direction. In the seventh aspect, the above-mentioned first slit and the second slit are provided on the top surface of the packaging bag to form a third flap surrounded by the second slit and the third base end extending in the second direction. Can be done.

Such a third flap can form easily flexible (or easily deformable) portions at both ends of the first flap in the first direction. Thereby, in the seventh aspect, the sheet is further held at the take-out port without being hindered from pulling out the sheet, and the falling of the sheet and the lifting of the packaging bag are suppressed with higher accuracy.

Further, the third flap, together with the first flap, can hold the sheet pulled out from the outlet in a well-balanced manner with the second flap. Therefore, in the seventh aspect, it is possible to realize with higher accuracy that the sheet drawn out from the outlet is held in the outlet in a state of standing above the outlet.

Further, in the seventh aspect, the third flap is surrounded by the second slit and the third base end, so that the outlet can be covered with the third flap together with the first flap and the second flap. Therefore, even in the seventh aspect, the outlet is not left open, and the invasion of foreign matter such as dust and dirt from the outlet into the packaging bag can be suppressed with high accuracy.

Further, in the seventh aspect, the third flap is surrounded by the second slit and the third base end, so that the third flap is connected to the top surface of the packaging bag via the first flap and is taken out. It is provided in. Therefore, even in the seventh aspect, it is possible to prevent the generation of broken pieces when the outlet is opened.

This application claims priority based on Japanese Patent Application No. 2019-198261 filed on October 31, 2019, the entire contents of which are incorporated herein by reference.

100 sheet packaging S sheet (sanitary tissue paper)
SL sheet laminate 10 Packaging bag 11 Top surface 11a Longitudinal center 11b Short side center 11c Edge edge 12 Bottom surface 13 Front surface 14 Back surface 15 Side surface 16 Side surface 20 Outlet OP Opening 21 First slit 21a Base 21b End 21c End Part C1 cut T1 tie G1 end part G2 end part V top part 22 second slit 22a one end 22b other end 22c base part C2 cut T2 tie 23 second slit 23a one end 23b other end 23c base part C2 cut T2 tie F1 first flap A1 Tip P Convex F2 2nd Flap B2 Base A2 Tip R Concave F3 3rd Flap B3 Base E3 Edge 30 Seal 40 Seal

Claims

A packaging bag that accommodates multiple stacked sheets,
It has an outlet that is formed on the top surface of the packaging bag and extends in the first direction.
The outlet is
A first slit extending in the first direction so as to be convex from one side of the second direction intersecting the first direction to the other side.
It has a second slit that is continuous with both ends of the first slit and extends from one side of the second direction to the other side so as to be curved toward a side away from the first slit in the first direction. Sheet packaging.
The sheet according to claim 1, wherein one end of the second slit is connected to the first slit, and the other end is located on the other side of the first slit, which is separated from the convex top of the first slit in the second direction. Packaging body.
The sheet package according to claim 1 or 2, wherein the shape of the second slit is an arc shape.
The sheet package according to any one of claims 1 to 3, wherein at least the convex top of the first slit is curved.
The sheet package according to any one of claims 1 to 4, which has a first flap surrounded by the first slit, the second slit, and the first base end extending in the first direction.
The sheet package according to any one of claims 1 to 5, which has a second flap surrounded by the first slit and the second base end extending in the first direction.
The sheet package according to any one of claims 1 to 6, which has a third flap surrounded by the second slit and the third base end extending in the second direction.