JP2020138787A - Sheet package - Google Patents

Abstract

To provide a sheet package which has an excellent feature for taking out sheets.SOLUTION: A sheet package has: a packaging bag which stores laminated sheets; and a take-out port which is formed on an upper surface of the packaging bag and from which the sheets are pulled out. The take-out port includes a first slit extending in a first direction and has a pair of flaps which are arranged sandwiching the take-out port in a second direction intersecting with the first direction.SELECTED DRAWING: Figure 1

Description

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 in recent years, sheets such as sanitary tissue paper are housed in flexible film packaging bags from the viewpoint of disposal after use, environmental load, cost, etc. Demand for sheet packaging is increasing. Some of such sheet packages have slits (perforations or the like) formed on the top surface of the film packaging bag for taking out sanitary paper (see, for example, Patent Documents 1 and 2).

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

However, in a sheet wrapping body in which the outlet is formed by slits, it is difficult to take out the first one of the plurality of stored sheets when taking out the sheet from the sheet wrapping 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 the ease of taking out the sheet.

An object of the present invention is to provide a sheet package having excellent sheet take-out property.

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 upper surface of the packaging bag and from which the sheets are pulled out. A sheet wrapping body including a first slit extending in a first direction and having a pair of flaps arranged with the outlet in the second direction intersecting the first direction.

In the present specification, the first direction indicates a direction along a predetermined one direction on the upper 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 upper surface of the packaging bag or a direction along a direction intersecting the streaks.

The slit is formed on the upper 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. The flap is formed on the upper surface of the packaging bag and is composed of a part of the packaging bag that moves up and down by the frictional force (or resistance force) when the sheet is pulled out from the outlet. Lined up with the outlet in between means that the pair of flaps face each other with the outlet arranged between the pair of flaps.

In the first aspect, the pair of flaps are lined up with the outlet in the second direction intersecting the first direction, so that one or both of the pair of flaps are upward when the seat is pulled out from the outlet. Since the opening width of the outlet is widened by curling (or bending), the sheet can be smoothly taken out from the outlet. As a result, the sheets housed in the packaging bag are less likely to be clogged in the outlet from the first sheet to the last sheet.

Further, in the first aspect, the sheet is smoothly taken out as described above, so that the rubbing between the take-out port and the sheet is alleviated. Therefore, when the sheet is taken out from the outlet, the sheet itself is not easily torn. Further, since the wear of the outlet due to the drawn sheet is reduced, it is possible to prevent the packaging bag from being torn (or broken) in the vicinity of the outlet.

Further, in the first aspect, the flap that is rolled up (or bent) when the sheet is pulled out returns to the original position by its own weight after the sheet is pulled out, and the opening width of the outlet is returned to the original width. Become. Therefore, the holding power of the sheet at the outlet is maintained even during use, and it is possible to prevent the sheet from falling into the packaging bag during use (hereinafter, referred to as a drop or a drop of the sheet).

Further, in the first aspect, as described above, the sheet is less likely to be clogged with the outlet (the friction between the outlet and the sheet can be alleviated), so that it is possible to reduce the wear of the outlet during use. it can. From such a viewpoint as well, it is possible to suppress a decrease in the holding force of the sheet at the outlet and prevent the sheet from falling.

Further, in the first aspect, the pair of flaps serve as a cushioning portion, and the frictional force (or resistance force) applied to the outlet when the sheet is taken out can be released (or dispersed) to the pair of flaps (buffering portions). .. Therefore, even if the remaining sheets are reduced during use (that is, even if the weight of the sheet packaging is lightened), the packaging bag should be lifted together when the sheet is taken out (hereinafter referred to as lifting or lifting of the packaging bag). Can be prevented.

A second aspect according to the present invention is a sheet package in which the shape of the flap is a trapezoidal shape in which the upper base constitutes the first slit. In the present specification, the trapezoidal shape in which the upper base constitutes the first slit means that the pair of flaps has a trapezoidal shape, and the space between the trapezoidal upper base of one flap and the trapezoidal shape of the other flap. Indicates that the first slit is configured. Further, the trapezoidal lower bottom of each flap can be connected to the upper surface of the packaging bag and serve as a starting point for each flap to move.

In the second aspect, the pair of flaps having such a trapezoidal shape makes it easy for the pair of flaps to roll up (or bend) when the sheet is pulled out from the outlet. Therefore, the opening width of the outlet is easily widened, and the sheet can be taken out from the outlet more smoothly.

Further, in the second aspect, since the pair of flaps has a trapezoidal shape in this way, the flaps that are rolled up (or bent) when the sheet is pulled out are returned by their own weight after the sheet is pulled out. It becomes easier to return to the position (the opening width of the outlet tends to return to the original width). Therefore, the holding force of the sheet at the take-out port can be easily maintained, and the sheet can be reliably prevented from falling.

Further, in the second aspect, the frictional force (or resistance force) applied to the outlet when the sheet is taken out can be released (or dispersed) to a pair of flaps (buffering portions). Therefore, even if the weight of the sheet package is reduced, the packaging bag can be reliably prevented from being lifted.

A third aspect of the present invention is a sheet package in which at least one end of the outlet is formed by a pair of second slits extending in a V shape. In the present specification, at least one end of the outlet means both ends of the outlet or one end of both ends. Further, "expanding in a V shape" means that the pair of second slits branch divergently in the direction away from the first slit.

In the third aspect, at least one end of the outlet is formed by such a second slit, so that the shape of the pair of flaps is surely made into a trapezoidal shape in which the upper base constitutes the first slit. be able to. Therefore, the sheet can be smoothly taken out from the take-out port, the sheet does not easily fall down, and the packaging bag does not easily lift up.

A fourth aspect according to the present invention is a sheet package in which the angle between the first slit and the second slit is 100 ° or more and 130 ° or less. In the present specification, the angle between the first slit and the second slit is the direction in which the second slit of either one of the first direction in which the first slit extends and the pair of second slits extending in a V shape extends. Indicates the angle that the slit makes.

In the fourth aspect, by setting the angle between the first slit and the second slit in such a range, the pair of flaps are more likely to be rolled up (or bent) upward when the sheet is pulled out from the outlet. As a result, the opening width of the outlet becomes easier to widen, and the sheet can be taken out from the outlet more smoothly.

Further, in the fourth aspect, the flap that is rolled up (or bent) when the sheet is pulled out is more likely to return to the original position by its own weight after the sheet is pulled out (furthermore, the opening width of the outlet is increased). It tends to return to its original width). Therefore, the holding force of the sheet at the take-out port can be more easily maintained, and the sheet can be more reliably prevented from falling.

Further, in the fourth aspect, the frictional force (or resistance force) applied to the outlet when the sheet is taken out can be further released (or dispersed) to a pair of flaps (buffering portions). Therefore, even if the weight of the sheet package is reduced, it is possible to more reliably prevent the packaging bag from being lifted.

A fifth aspect according to the present invention is a sheet package in which the angle between the pair of second slits is 100 ° or more and 170 ° or less. In the present specification, the angle between the pair of second slits indicates the angle formed by one second slit extending in a V shape and the other second slit.

In the fifth aspect, by setting the angle between the pair of second slits in such a range, the pair of flaps are more likely to be rolled up (or bent) upward when the sheet is pulled out from the outlet. As a result, the opening width of the outlet can be further widened, and the sheet can be taken out from the outlet more smoothly.

Further, in the fifth aspect, the flap that is rolled up (or bent) when the sheet is pulled out is more likely to return to the original position by its own weight after the sheet is pulled out (furthermore, the opening width of the outlet is increased). It tends to return to its original width). Therefore, the holding force of the sheet at the take-out port can be more easily maintained, and the sheet can be prevented from falling more reliably.

Further, in the fifth aspect, the frictional force (or resistance force) applied to the outlet when the sheet is taken out can be further released (or dispersed) to a pair of flaps (buffering portions). Therefore, even if the weight of the sheet package is reduced, it is possible to more reliably prevent the packaging bag from being lifted.

A sixth aspect according to the present invention is a sheet package having a third slit that is continuously formed in the second slit and extends in an arc shape from one of the ends. In the present specification, continuously formed in the second slit means that the third slit is formed in connection with the second slit. Further, extending in an arc shape means that the third slit bends so as to draw a part of a circle.

In the sixth aspect, by forming such an arc-shaped third slit continuously in the second slit, the sheet held at the outlet during use is locked to the arc-shaped third slit. Can be done. Therefore, the holding force of the sheet at the take-out port is improved, and the sheet can be reliably prevented from falling.

Further, in the sixth aspect, by forming such a third slit with respect to the second slit, it is possible to change the direction in which the end portion breaks at the end portion of the outlet that is easily broken during use. .. Therefore, it is possible to prevent the end of the outlet from breaking.

A seventh aspect according to the present invention is a sheet package in which the third slit bends toward the side approaching the first slit. In the present specification, the side where the second slit approaches the first slit refers to the outside of the V shape forming the shape of the pair of second slits. Further, when the third slit is bent, it means that the third slit extends in an arc shape.

In the seventh aspect, the flap forming region can be widened by the third slit that bends toward the side where the second slit approaches the first slit is continuous with the second slit. Therefore, when the sheet is pulled out from the outlet, the pair of flaps are further rolled upward (or bent), and the opening width of the outlet can be further widened. As a result, the sheet can be taken out more smoothly from the outlet.

Further, in the seventh aspect, the flap that is rolled up (or bent) when the sheet is pulled out is more likely to return to the original position by its own weight after the sheet is pulled out (furthermore, the opening width of the outlet is increased). It tends to return to its original width). Therefore, the holding force of the sheet at the take-out port is further maintained, and the sheet can be more reliably prevented from falling.

An eighth aspect according to the present invention is a sheet package in which the radius of curvature of the third slit is 5 mm or more and 20 mm or less. In the present specification, the radius of curvature indicates the radius of the arc forming the shape of the third slit.

In the eighth aspect, by setting the radius of curvature of the third slit to such a range, the sheet held at the outlet during use can be easily locked to the arc-shaped third slit. Therefore, the holding force of the sheet at the take-out port is further improved, and the sheet can be more reliably prevented from falling.

Further, in the eighth aspect, by continuously forming the third slit having a radius of curvature in such a range in the second slit, the end portion is broken at the end portion of the outlet which is easily broken during use. The direction can be changed reliably. Therefore, it is possible to reliably prevent the end of the outlet from breaking.

A ninth aspect according to the present invention is a sheet package in which the radian of the third slit is 5π / 4 or more. In the present specification, the arc degree indicates the magnitude (radian) of the central angle of the arc equal to the length of the radius.

In the ninth aspect, by setting the radian of the third slit in such a range, the sheet held at the outlet during use is more likely to be locked to the arc-shaped third slit. Therefore, the holding force of the sheet at the take-out port is further improved, and the sheet can be prevented from falling more reliably.

Further, in the ninth aspect, by continuously forming the third slit having an arc degree in such a range in the second slit, the end portion is broken at the end portion of the outlet which is easily broken during use. Can be changed more reliably. Therefore, it is possible to more reliably prevent the end of the outlet from breaking.

According to one aspect of the present invention, it is possible to provide a sheet package having excellent sheet take-out property.

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 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 a figure which shows the use state (the state which the sheet is held in the outlet) of the sheet package which concerns on 1st Embodiment. It is a figure which shows the use state (the outlet when the sheet is pulled out to one flap side) of the sheet package which concerns on 1st Embodiment. It is a figure which shows the use state (the outlet when the sheet is pulled out to the other flap side) of the sheet package which concerns on 1st Embodiment. It is a figure which shows the outlet in the sheet package which concerns on 2nd Embodiment. It is a figure which shows a part of the end part of the outlet in the sheet package which concerns on 2nd Embodiment. It is a figure which shows the use state of the sheet package which concerns on 2nd Embodiment. It is a figure which shows the outlet in the sheet package which concerns on the modification of 2nd Embodiment. It is a figure which shows a part of the end part of the outlet in the sheet package body which concerns on the modification of 2nd Embodiment. It is a figure which shows the use state of the sheet package which concerns on the modification of 2nd Embodiment. It is a figure which shows the conventional sheet package body.

Embodiments of the present invention will be described in detail with reference to the drawings. The common parts in the drawings may be designated by the same reference numerals and description thereof may be omitted. Further, in the description shown below, the scale of each member in each drawing may be different from the actual scale for easy understanding.

FIG. 1 is a diagram showing a sheet package according to the first embodiment of the 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 view showing an end portion of an outlet in the sheet package according to the first embodiment. FIG. 5 is a diagram showing an outlet after opening the sheet package according to the first embodiment. FIG. 6 is a diagram showing a usage state of the sheet package according to the first embodiment.

In the sheet package 100 shown in FIGS. 1 to 6, the longitudinal direction (horizontal direction) is the X direction, the depth direction (front-back direction) is the Y direction, and the height direction (vertical direction) is the Z direction.

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 and the outlet 20 are examples of the packaging bag and the outlet that constitute the sheet package according to the present invention, respectively.

The packaging bag 10 contains a plurality of sheets ST. As shown in FIG. 1, the sheet ST is housed in the packaging bag 10 as a laminated body SL in which a plurality of sheet STs are laminated. The laminated body SL of the sheet ST is housed in the packaging bag 10 so that the stacking direction (SD direction) of the sheet ST is the height direction (Z direction). In the sheet laminated body SL, the sheets ST can be pulled out one by one through the outlet 20 (opening OP) formed in the packaging bag 10 (see FIG. 6).

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

Further, the dimensions of the laminated body SL of the sheet ST are such that the length of the sheet package 100 in the longitudinal direction (X direction) is about 80 to 250 mm, and the depth orthogonal to the longitudinal direction (X direction) of the sheet package 100 when viewed from above. The length in the direction (Y direction) can be about 50 to 130 mm, and the height in the height direction (Z direction) can be about 10 to 90 mm. 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 ST 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 sanitary tissue papers also include hygienic tissue papers containing moisturizing ingredients (eg, lotion tissues, etc.). The use of the sanitary tissue paper constituting the sheet ST is not particularly limited, and any of industrial, household, and portable uses can be applied. Among these, the sheet wrapping body 100 of the present embodiment is preferably used for household tissue paper.

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

The material of the sheet ST is not particularly limited, but for example, a sheet such as paper, non-woven fabric, or cloth can be used, and a paper sheet is preferable. When the sheet ST 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 ST (paper sheet) is not particularly limited. For example, softwood pulp such as NBKP (conifer kraft pulp) and NUKP (conifer unbleached pulp) and broadleaf pulp such as LBKP (hardwood kraft pulp) and LUKP (hardwood unbleached pulp) can be used in an arbitrary ratio. However, it is preferable that the pulp composition has a larger ratio of softwood pulp to broadleaf pulp. The ratio of softwood pulp to hardwood pulp is not limited, but is preferably 10:90 to 80:20. In addition, waste paper pulp may be used as the pulp contained in the pulp composition of sheet ST (paper sheet).

The basis weight of the sheet ST is not particularly limited, but is preferably 10 to 80 g / m ² for paper and 20 to 100 g / m ² for non-woven fabric, depending on the number of plies. The basis weight is measured in accordance with the provisions of JIS P 8124.

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

The paper thickness is measured by adjusting the humidity of the test piece sufficiently under the conditions of JIS P 8111 (1998), and then under the same conditions, dial thickness gauge (thickness measuring instrument) "PEACOCK G type" (manufactured by Ozaki Seisakusho). ) Is used to measure in a 2-ply state. Specifically, after confirming that there is no dust, dust, etc. between the plunger and the measuring table, the plunger is lowered onto the measuring table, and the memory of the dial thickness gauge is moved to adjust the zero point. Then, raise the plunger, place the sample on the test bench, and read the gauge when the plunger is slowly lowered. At this time, the plunger is only placed. The terminal of the plunger is made of metal so that a circular plane having a diameter of 10 mm hits the paper plane perpendicularly, and the load at the time of measuring the paper thickness is about 70 gf. The paper thickness is an average value obtained by performing the measurement 10 times.

Further, the paper sheet constituting the sheet ST may be embossed. Such embossing is not shown by a known contact embossing method, an edge embossing method, or the like, in which embossing (not shown) is pressed against both ends of a paper sheet and a plurality of paper sheets are laminated, or by a known pin embossing method. A paper sheet in which a pin is pierced into a paper sheet to form pin embossing on one surface of the paper sheet. A water-soluble adhesive (starch, etc.) is heated and melted by a known embossing method, and the laminated paper sheet is laminated. There are some that form embossing by adhering (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 caramel packaging. Specifically, both ends of the tubular flexible film are formed of sealed portions 30 and 40 that are folded and bonded (sealed) (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. (It may be sealed with so-called pillow packaging).

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 includes a single-layer film in which the above-mentioned resin is formed in a single layer, a laminated film in which the above-mentioned resin is laminated, and the above-mentioned two or more kinds of resins. It may be a mixed film formed of a mixture.

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 ST 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 housing can be ensured, and the cost can be suppressed.

The material forming the packaging bag 10 is not limited to the resin material described above, and a paper material may be used. Further, a biodegradable material (biodegradable plastic, biodegradable paper, etc.) can be used as the material for forming the packaging bag 10.

In the present embodiment, the packaging bag 10 has an upper surface 11, a lower surface 12, a front surface 13, a back surface 14, a side surface 15, and a side surface 16, and the laminated body SL of the sheet ST is stored. In the sheet package 100, as shown in FIG. 1, the upper surface 11 and the lower 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 15. The side surfaces 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 upper surface 11, the lower surface 12, the front surface 13, and the back surface 14 (see FIG. 1).

Further, the outlet 20 is formed on the upper surface 11 of the packaging bag 10 so that the sheet ST can be pulled out. Specifically, as shown in FIG. 1, the outlet 20 is arranged at the center 11a of the upper surface 11 of the packaging bag 10 in the longitudinal direction (X direction) of the sheet packaging body 100.

The outlet 20 is formed to include a first slit 21 extending in the first direction (X direction). In the present embodiment, the first slit 21 constitutes the base of the outlet 20. Here, the first direction in which the first slit 21 extends indicates a direction along a predetermined one direction (X direction) on the upper surface 11 of the packaging bag 10. In the present embodiment, the longitudinal direction of the sheet package 100 corresponds to the first direction (X direction).

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 3, the first slit 21 formed on the upper surface 11 of the packaging bag 10 is formed of perforations. In the present embodiment, by breaking the first slit 21 (perforation), the upper surface 11 of the packaging bag 10 is opened in the first direction (X direction), and the opening OP constitutes the outlet 20 of the sheet ST. (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 ST. For example, the difference between the length L2 of the outlet 20 in the left-right direction (X direction) and the width (length L1) of the packaging bag 10 in which the sheet ST is housed is -100 mm or more and 0 mm or less, preferably -80 mm. It is 0 mm or more, more preferably −70 mm or more and −10 mm or less. When these are converted into the ratio of the length L2 of the outlet 20 to the width (length L1) of the packaging bag 10 in the left-right direction (X direction), it is 100% or less, preferably 80% or less, more preferably. Is 10% or more and 75% or less (see FIG. 2).

Further, the first slit 21 (perforation) forming a part of the outlet 20 is configured such that the cut portion C and the tie portion T are alternately arranged (see FIG. 4). The tie portion T is an uncut portion between two adjacent cut portions C.

In the first slit 21 (perforation), the length of the cut portion C and the length of the tie portion T are arbitrary. The length of each cut portion C 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 portion 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. is there.

The sheet package 100 of the present embodiment has a pair of flap FLs. As shown in FIGS. 5 and 6, the pair of flaps FL is composed of two flaps (flaps FL1 and FL2) formed on the upper surface 11 of the packaging bag 10 as a part of the packaging bag 10. The flap FL is configured to be able to move up and down by the frictional force (or resistance force) when the sheet ST is pulled out from the outlet 20 (opening OP).

The pair of flap FLs (flap FL1, FL) are arranged side by side in the second direction (Y direction) intersecting the first direction (X direction). Here, the second direction intersecting with the first direction is a direction orthogonal to a direction along a predetermined one direction (X direction) on the upper surface 11 of the packaging bag 10 or a direction along a direction intersecting the streaks (Y direction). Is shown. In the present embodiment, the second direction corresponds to a direction (depth direction or front-back direction) orthogonal to the first direction (longitudinal direction or left-right direction).

The pair of flap FLs (flap FL1, FL) are lined up with the outlet 20 in between. Here, the fact that the pair of flap FLs are lined up with the outlet 20 in between means that the pair of flap FLs are second in a state where the outlet 20 is arranged between the pair of flap FLs, as shown in FIGS. Indicates that they face each other in the direction (Y direction).

Further, in the sheet package 100 of the present embodiment, the shape of each flap FL (flap FL1, FL2) is arbitrary. In the present embodiment, it is preferable that the shape of the flap FL1 is a trapezoidal shape in which the upper base UB1 constitutes the first slit 21, and the shape of the flap FL2 is a trapezoidal shape in which the upper base UB2 constitutes the first slit 21 (FIG. 5, see FIG. 6).

Here, the trapezoidal shape in which the upper base constitutes the first slit 21 is such that the shape of the pair of flaps FL (flaps FL1 and FL2) is trapezoidal, and the upper base of one flap FL1 and the upper base of the other flap FL2 are above. It is shown that the first slit 21 is formed between the bottom UB2 and the bottom (see FIG. 5).

Further, the trapezoidal lower bottoms LB1 and LB2 constituting the flaps FL1 and FL2 can be connected to the upper surface 11 of the packaging bag 10 and serve as a starting point for the flaps FL1 and FL2 to move (see FIG. 5). The lower bottoms LB1 and LB2 of the flaps FL1 and FL2 are the portions shown by the broken lines in FIG.

Further, the sheet package 100 of the present embodiment has a pair of second slits 22 and a pair of second slits 23, as shown in FIGS. 1 to 4. The pair of second slits 22 are formed at one end 22 of the outlet 20. Further, the pair of second slits 23 are formed at the other end 23 of the outlet 20.

The pair of second slits 22 is composed of two notches 22a and 22b that extend in a V shape. Further, the pair of second slits 23 is composed of two notches 23a and 23b extending in a V shape. Here, the fact that the ends 22 and 23 spread in a V shape indicates that the ends 22 and 23 of the outlet 20 branch in a divergent direction away from the outlet 20 in the first direction (X direction).

Specifically, as shown in FIGS. 3 and 4, a pair of second slits 22 are continuous with the side end 21a of the first slit 21, and are V-shaped from the side end (branch end) 21a of the first slit 21. It is composed of two notches 22a and 22b that branch in a shape. Further, the pair of second slits 23 are continuous with the side end 21b of the first slit 21, and are composed of two notches 23a and 23b that branch in a V shape from the side end (branch end) 21b of the first slit 21. Has been done.

In the present embodiment, the length L3 of the second slit 22 (cuts 22a, 22b) is 2% or more and 10% or less with respect to the length L2 of the outlet 20 in the first direction (X direction). It is preferably 3% or more and 9% or less, and more preferably 4% or more and 8% or less. Further, the length L3 of the second slit 23 (cuts 23a, 23b) is 2% or more and 10% or less, preferably 3% or more, with respect to the length L2 of the outlet 20 in the first direction (X direction). It is 9% or less, more preferably 4% or more and 8% or less (see FIG. 2).

In the present embodiment, in the second direction (Y direction), the maximum width W2 of the region where the second slits 22 (cuts 22a, 22b) expand in a V shape is 5 with respect to the depth W1 of the upper surface 11 of the packaging bag 10. % Or more and 35% or less, preferably 10% or more and 30% or less, and more preferably 15% or more and 25% or less. The maximum width W2 of the region where the second slits 23 (cuts 23a and 23b) expand in a V shape is 5% or more and 35% or less, preferably 10%, with respect to the depth W1 of the upper surface 11 of the packaging bag 10. It is 30% or more, more preferably 15% or more and 25% or less (see FIG. 2).

Further, in the sheet package 100 of the present embodiment, as shown in FIG. 4, the angle θ1 between the first slit 21 and the second slit 22 (cut 22a or cut 22b) is 100 ° or more and 130 ° or less. Further, the angle θ1 between the first slit 21 and the second slit 23 (cut 23a or cut 23b) is also 100 ° or more and 130 ° or less.

Here, the angle θ1 between the first slit 21 and the second slit 22 is a pair of second slits 22 (cut 22a or cut 22b) extending in a V shape with the first direction (X direction) in which the first slit 21 extends. ) Indicates the angle formed by the extending direction (see FIG. 4). Further, the angle θ1 between the first slit 21 and the second slit 23 is a pair of second slits 23 (cut 23a or cut 23b) extending in a V shape with the first direction (X direction) in which the extending first slit 21 extends. ) Indicates the angle formed by the extending direction (see FIG. 4).

Further, in the sheet package 100 of the present embodiment, as shown in FIG. 4, the angle θ2 between the pair of second slits 22 (cuts 22a and 22b) is 100 ° or more and 170 ° or less. Further, the angle θ2 between the pair of second slits 23 (cuts 23a, 23b) is also 100 ° or more and 170 ° or less.

Here, the angle θ2 between the pair of second slits 22 (cuts 22a, 22b) is the angle formed by one second slit (cut 22a) and the other second slit (cut 22b) that spread in a V shape. Shown. Further, the angle θ2 between the pair of second slits 23 (cuts 23a, 23b) indicates the angle formed by one second slit (cut 23a) and the other second slit (cut 23b) extending in a V shape. ..

7 to 9 are views showing the usage state of the sheet package according to the first embodiment. Here, the effect of the present invention according to the present embodiment will be described with reference to FIGS. 5 to 9. In the present embodiment, when the first slit 21 (perforation) formed on the upper surface 11 of the packaging bag 10 is broken (opened), the first slit 21 (X direction) on the upper surface 11 of the packaging bag 10 is first. An opening OP in which the slit 21, the pair of second slits 22, and the pair of second slits 23 are continuous is formed as the outlet 20 (see FIGS. 5 and 6).

In the present embodiment, as described above, the pair of flap FLs (flap FL1, L2) sandwich the outlet 20 in the second direction (Y direction) where the pair of flap FLs intersect the first direction (X direction). They are lined up. With such a configuration, when the sheet ST is pulled out from the outlet 20 (opening OP), one or both of the flaps FL1 and L2 can be rolled up (or bent).

Specifically, the sheet ST is pulled out from the state where the sheet ST is held at the outlet 20 (opening OP) (see FIGS. 6 and 7) to the back surface 14 side of the packaging bag 10 (see FIG. 8). Then, the flap FL1 is rolled up (or bent). On the other hand, the flap L2 is maintained at the same height as the upper surface 11 of the packaging bag 10. As a result, a gap is created between the upper bottom UB1 of the flap FL1 and the upper bottom UB2 of the flap L2, and the opening width of the outlet 20 (opening OP) is widened.

Further, when the sheet ST is held in the outlet 20 (opening OP) (see FIGS. 6 and 7) and the sheet ST is pulled out to the front 13 side of the packaging bag 10 (see FIG. 9), the flap is flapped. FL2 rolls up (or bends). On the other hand, the flap L1 is maintained at the same height as the upper surface 11 of the packaging bag 10. As a result, a gap is created between the upper bottom UB2 of the flap FL2 and the upper bottom UB1 of the flap L1, and the opening width of the outlet 20 (opening OP) is widened.

The sheet ST can be smoothly taken out from the outlet 20 (opening OP) in which the opening width is widened in this way. As a result, in the present embodiment, the sheet ST (sheet laminate SL) housed in the packaging bag 10 is less likely to be clogged in the outlet 20 (opening OP) from the first sheet to the last sheet.

In the present embodiment, the sheet ST is smoothly taken out as described above, so that the rubbing between the outlet 20 (opening OP) and the sheet ST is alleviated. Therefore, when the sheet ST is taken out from the outlet 20 (opening OP), the sheet ST itself is not easily torn. Further, since the wear of the outlet 20 (opening OP) due to the drawn sheet ST is reduced, it is possible to prevent the packaging bag 10 from being torn (or broken) in the vicinity of the outlet 20 (opening OP).

In the present embodiment, the flap FL1 and / or the flap FL2 (see FIGS. 8 and 9) that are rolled up (or bent) when the seat ST is pulled out are in their original positions by their own weight after the seat ST is pulled out. The opening width of the outlet 20 (opening OP) becomes the original width (see FIGS. 6 and 7). Therefore, the holding power of the sheet ST at the outlet 20 (opening OP) is maintained even during use, and it is possible to prevent the sheet ST from falling into the packaging bag 10 during use (hereinafter, referred to as a drop or a drop of the sheet ST). it can.

In the present embodiment, as described above, the sheet ST is less likely to be clogged in the outlet 20 (opening OP) (because the friction between the outlet 20 (opening OP) and the sheet ST can be alleviated), so that the sheet ST can be removed during use. It is possible to reduce the wear of the outlet 20 (opening OP). From such a viewpoint as well, it is possible to suppress a decrease in the holding force of the sheet ST at the outlet 20 (opening OP) and prevent the sheet ST from falling.

In the present embodiment, the pair of flap FLs serve as cushioning portions, and the frictional force (or resistance force) applied to the outlet 20 (opening OP) when the sheet ST is taken out is released (or resisted) to the pair of flap FLs (buffering portions). Can be scattered). Therefore, even if the remaining sheet ST is reduced during use (that is, even if the weight of the sheet packaging body 100 is reduced), the packaging bag 10 is lifted up when the sheet ST is taken out (hereinafter, lifted or packaging bag 10). Can be prevented from being lifted.

Further, in the present embodiment, since the pair of flap FLs have a trapezoidal shape as described above, the pair of flap FLs are rolled up (or bent) when the sheet ST is pulled out from the outlet 20 (opening OP). It will be easier. Therefore, the opening width of the outlet 20 (opening OP) can be easily widened, and the sheet ST can be taken out more smoothly from the outlet 20 (opening OP).

In the present embodiment, since the pair of flap FLs have a trapezoidal shape as described above, the flap FL that is rolled up (or bent) when the sheet ST is pulled out is under its own weight after the sheet ST is pulled out. It becomes easy to return to the original position (the opening width of the outlet 20 (opening OP) tends to return to the original width). Therefore, the holding force of the sheet ST at the outlet 20 (opening OP) is easily maintained, and the sheet ST can be reliably prevented from falling.

In the present embodiment, since the pair of flap FLs have a trapezoidal shape as described above, the frictional force (or resistance force) applied to the outlet 20 (opening OP) when the sheet ST is taken out is reduced by the pair of flap FLs. It can be released (or scattered) to the (buffer). Therefore, even if the weight of the sheet packaging body 100 is reduced, the packaging bag 10 can be reliably prevented from being lifted.

Further, in the present embodiment, as described above, at least one end (end 22 and / or end 23) of the outlet 20 is formed by the second slits 22 and 23, so that the pair of flap FLs The shape of the above can be surely made into a trapezoidal shape in which the upper base constitutes the first slit 21. Therefore, the sheet ST can be smoothly taken out from the outlet 20 (opening OP), the sheet ST does not easily fall down, and the packaging bag 10 that does not easily lift up can be reliably obtained.

Further, in the present embodiment, by setting the angle θ1 between the first slit 21 and the second slits 22 and 23 to the above range, a pair of flaps are used when the sheet ST is pulled out from the outlet 20 (opening OP). The FL is more likely to roll (or bend) upward. As a result, the opening width of the outlet 20 (opening OP) becomes easier to widen, and the sheet ST can be taken out more smoothly from the outlet 20 (opening OP).

In the present embodiment, by setting the angle θ1 between the first slit 21 and the second slits 22 and 23 to the above range, the flap FL that is rolled up (or bent) when the sheet ST is pulled out is the sheet. After the ST is pulled out, it becomes easier to return to the original position by its own weight (furthermore, the opening width of the outlet 20 (opening OP) tends to return to the original width). Therefore, the holding force of the sheet ST at the outlet 20 (opening OP) can be more easily maintained, and the sheet ST can be more reliably prevented from falling.

In the present embodiment, by setting the angle θ1 between the first slit 21 and the second slits 22 and 23 to the above range, the frictional force (or resistance) applied to the outlet 20 (opening OP) when the sheet ST is taken out is set. The force) can be further released (or dispersed) to a pair of flap FLs (buffers). Therefore, even if the weight of the sheet packaging body 100 is reduced, it is possible to more reliably prevent the packaging bag 10 from being lifted.

Further, in the present embodiment, the angle θ2 between the pair of second slits 22 (cuts 22a, 22b) or the angle θ2 between the pair of second slits 23 (cuts 23a, 23b) is set to the above range. When the sheet ST is pulled out from the outlet 20 (opening OP), the pair of flap FLs are more likely to be rolled up (or bent) upward. As a result, the opening width of the outlet 20 (opening OP) becomes easier to widen, and the sheet ST can be taken out more smoothly from the outlet 20 (opening OP).

In the present embodiment, by setting the angle θ2 between the pair of second slits 22 or the angle θ2 between the pair of second slits 23 to the above range, the sheet ST is rolled (or bent) when it is pulled out. After the sheet ST is pulled out, the flap FL is more likely to return to its original position due to its own weight (furthermore, the opening width of the outlet 20 (opening OP) is likely to be the original width). Therefore, the holding force of the sheet ST at the outlet 20 (opening OP) can be more easily maintained, and the sheet ST can be more reliably prevented from falling.

In the present embodiment, the angle θ2 between the pair of second slits 22 or the angle θ2 between the pair of second slits 23 is set to the above range, so that the outlet 20 (opening OP) is engaged when the sheet ST is taken out. The frictional force (or resistance) can be further released (or dispersed) to a pair of flap FLs (buffers). Therefore, even if the weight of the sheet packaging body 100 is reduced, it is possible to more reliably prevent the packaging bag 10 from being lifted.

FIG. 10 is a diagram showing an outlet in the sheet package according to the second embodiment of the present invention. FIG. 11 is a diagram showing a part of the end portion of the outlet in the sheet package according to the second embodiment. FIG. 12 is a diagram showing a usage state of 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, 4, and 6, and the description thereof will be omitted.

As shown in FIG. 10, the sheet package 100 according to the second embodiment has the third slits 24 and 25. The third slit 24 is composed of notches 24a and 24b continuously formed in the pair of second slits 22. Further, the third slit 25 is composed of notches 25a and 25b continuously formed in the pair of second slits 23. That is, the third slit 24 (cuts 24a, 24b) is configured to be connected to the second slit 22, and the third slit 25 (cuts 25a, 25b) is configured to be connected to the second slit 23 (FIG. 10).

Further, as shown in FIG. 10, the third slit 24 (cuts 24a, 24b) is configured to extend in an arc shape from one end 22 of the outlet 20. Further, the third slit 25 (cuts 25a, 25b) is configured to extend in an arc shape from the other end 23 of the outlet 20. That is, the third slit 24 (cuts 24a, 24b) and the third slit 25 (cuts 25a, 25b) are configured to be curved so as to draw a part of a circle (see FIG. 10).

Specifically, in the present embodiment, the third slit 24 (cuts 24a, 24b) and the third slit 25 (cuts 25a, 25b) are bent so that the second slits 22 and 23 are bent to the side where the second slits 22 and 23 are separated from the first slit 21. It is located in. Here, the side where the second slits 22 and 23 are separated from the first slit 21 indicates the inside of the V shape forming the shape of the pair of the second slits 22 and 23 (see FIGS. 10 and 11). Further, the bending of the third slit 24 (cuts 24a, 24b) and the third slit 25 (cuts 25a, 25b) means that the third slit 24 (cuts 24a, 24b) and the third slit 25 (cuts 25a, 25b) bend. Indicates that it extends in an arc shape.

Further, in the present embodiment, the radius of curvature of the third slit 24 (cuts 24a, 24b) is preferably 5 mm or more and 20 mm or less, more preferably 18 mm or less, and further preferably 15 mm or less. The radius of curvature of the third slit 25 (cuts 25a, 25b) is preferably 5 mm or more and 20 mm or less, more preferably 18 mm or less, and further preferably 15 mm or less. Here, the radius of curvature indicates the radius r of the arc forming the shapes of the third slit 24 (cuts 24a and 24b) and the third slit 25 (cuts 25a and 25b) (see FIG. 11).

Further, in the present embodiment, the radian θ3 of the third slit 24 (cuts 24a, 24b) is preferably 5π / 4 (225 °) or more, more preferably 5π / 4 (225 °) or more and 7π / 4 ( It is 315 °) or less, and more preferably 5π / 4 (225 °) or more and 8π / 5 (288 °) or less. Further, the radian θ3 of the third slit 25 (cuts 25a, 25b) is preferably 5π / 4 (225 °) or more, more preferably 5π / 4 (225 °) or more and 7π / 4 (315 °) or less. More preferably, it is 5π / 4 (225 °) or more and 8π / 5 (288 °) or less. Here, the arc degree θ3 indicates the magnitude (radian) of the central angle of the arc equal to the length of the radius (see FIG. 11).

In the present embodiment, in the third slit 24 (cuts 24a, 24b), the direction in which the tips ET1 and ET2 of the cuts 24a and 24b extend intersects the direction in which the second slit (cuts 22a and 22b) extends (orthogonal). It is arranged so as to. Further, the third slit 25 (cuts 25a, 25b) is arranged so that the direction in which the tips ET3, ET4 of the cuts 25a, 25b extend intersects (orthogonally) the direction in which the second slit (cuts 23a, 23b) extends. (See FIGS. 10 and 11).

In the present embodiment, as described above, the arcuate third slits 24 and 25 are continuously formed in the second slits 22 and 23, so that the sheet ST is held at the outlet 20 (opening OP) during use. Can be locked to the arcuate third slits 24 and 25 (see FIG. 12). Therefore, the holding force of the sheet ST at the outlet 20 (opening OP) is improved, and the sheet ST can be reliably prevented from falling.

In the present embodiment, by forming such third slits 24 and 25 with respect to the second slits 22 and 23, the ends 22 and 23 at the ends 22 and 23 of the outlet 20 which are easily broken during use. The breaking direction can be changed (see FIGS. 10 to 12). Therefore, it is possible to prevent the ends 22 and 23 of the outlet 20 from breaking.

Further, in the present embodiment, by setting the radius of curvature r of the third slits 24 and 25 to the above range, the sheet ST held at the outlet 20 (opening OP) at the time of use is the arc-shaped third slit 24. It becomes easy to lock to 25 (see FIGS. 11 and 12). Therefore, the holding force of the sheet ST at the outlet 20 (opening OP) is further improved, and the sheet ST can be more reliably prevented from falling.

In the present embodiment, by continuously forming the third slits 24 and 25 having the radius of curvature r in the above range in the second slits 22 and 23, the ends 22 and 23 of the outlet 20 which are easily broken during use. In, the direction in which the ends 22 and 23 break can be reliably changed (see FIGS. 11 and 12). Therefore, it is possible to reliably prevent the ends 22 and 23 of the outlet 20 from breaking.

Further, in the present embodiment, by setting the radian θ3 of the third slits 24 and 25 to the above range, the sheet ST held at the outlet 20 (opening OP) at the time of use is the arc-shaped third slits 24 and 25. It becomes easier to be locked to (see FIGS. 11 and 12). Therefore, the holding force of the sheet ST at the outlet 20 (opening OP) is further improved, and the sheet ST can be more reliably prevented from falling.

In the present embodiment, by continuously forming the third slits 24 and 25 having an arc degree θ3 in the above range in the second slits 22 and 23, at the ends 22 and 23 of the outlet 20 which are easily broken during use. , The direction in which the ends 22 and 23 break can be changed more reliably (see FIGS. 11 and 12). Therefore, it is possible to more reliably prevent the ends 22 and 23 of the outlet 20 from breaking.

FIG. 13 is a diagram showing an outlet in the sheet package according to the modified example of the second embodiment. FIG. 14 is a diagram showing a part of the end portion of the outlet in the sheet package according to the modified example of the second embodiment. FIG. 15 is a diagram showing a usage state of the sheet package according to the modified example of the second embodiment. In the modified example of the second embodiment, the parts common to the first embodiment and the second embodiment will be described with reference numerals used in FIGS. 3, 4, 6, and 10 to 12. Is omitted.

In the sheet package 100 according to the modified example of the second embodiment, as shown in FIG. 13, the third slits 24 and 25 are arranged so as to bend toward the side approaching the first slit 21. Here, the side where the second slits 22 and 23 approach the first slit 21 indicates the outside of the V shape forming the shape of the pair of second slits 22 and 23 (see FIGS. 13 and 14). Further, the bending of the third slits 24 and 25 indicates that the third slits 24 and 25 extend in an arc shape as described above.

In the present embodiment, the second slits 22 and 23 bend toward the side closer to the first slit 21, and the third slits 24 and 25 are continuous with the second slits 22 and 23, whereby a pair of flap FLs (flap FL1, FL2). The formation area of can be expanded. Therefore, when the sheet ST is pulled out from the outlet 20 (opening OP), the pair of flap FLs are further rolled upward (or bent), and the opening width of the outlet 20 (opening OP) can be further widened (FIG. 13). ~ 15). As a result, the sheet ST can be taken out more smoothly from the outlet 20 (opening OP).

In the present embodiment, the flap FL that is rolled up (or bent) when the sheet ST is pulled out is more likely to return to the original position by its own weight after the sheet ST is pulled out (further, the outlet 20 (opening OP). ) Is likely to return to the original width) (see FIGS. 13 to 15). Therefore, the holding force of the sheet ST at the outlet 20 (opening OP) is further maintained, and the sheet ST can be more reliably prevented from falling.

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 ST were laminated was packaged in a packaging bag 10 was prepared (see FIG. 1). The sheet laminate SL is a tissue paper (trade name "Hello Soft Pack tissue", manufactured by Universal Paper Co., Ltd., 2-ply, 150 pairs) in which the sheets ST are folded alternately and laminated so that one pair can be pulled out in a pop-up manner. (300 sheets), dimensions: bulk (height) about 40 mm, length L1 (width) about 179 mm, depth W1 (length) about 101 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 FIG. 1). 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 sheet package 100 were about 200 mm in the longitudinal direction (X direction), about 105 mm in the depth direction (Y direction), and about 40 mm in the height direction (Z direction). Further, an outlet 20 extending in the first direction (X direction) is formed on the upper surface 11 of the packaging bag 10.

[Drawer resistance value]
The pull-out resistance value of the sheet package 100 was confirmed. To confirm the withdrawal resistance value, the above-mentioned test piece (sheet package 100) is placed on a flat mounting surface, and the first set of tissue paper (sheet ST) is placed from the outlet 20 (opening OP) of the package bag 10. About half was pulled out, and the upper tip of the pulled out sheet ST (the central portion in the longitudinal direction (X direction) of the sheet package 100) was sandwiched between eyeball clips ("Kuri-17" manufactured by KOKUYO Co., Ltd.). Pass the hook of the push-pull gauge (manufactured by Imada Co., Ltd., model number: Z2-20) through one hole of the handle of the eyeball clip, and take 0.4 to 0.6 seconds at a constant speed to accommodate the container. The resistance value (unit: gf) when the tissue paper was pulled out in the direction perpendicular to the upper surface of the above was measured. The evaluation criteria for the withdrawal resistance value is that when the resistance value at the time of withdrawal is 100 gf or less, it is good (the sheet ST is easy to take out), and when it exceeds 100 gf, it is not good (the sheet ST is difficult to take out). did.

[Non-depressive]
The non-depressing property of the sheet ST housed in the packaging bag 10 of the sheet packaging body 100 was confirmed. In the confirmation of non-depression, when the sheet ST was pulled out from the sheet laminate SL through the outlet 20 of the packaging bag 10, it was evaluated whether the sheet ST did not fall into the packaging bag 10 (non-depression). The non-depressiveness was evaluated according to the following criteria. When the non-depressing property was evaluated as 3 or more, it was evaluated as good (difficult to be depressed).
5: No sheet depression 4: Sheet depression 1 or more and 3 times or less 3: Sheet depression 4 or more and 6 times or less 2: Sheet depression 7 or more and 9 times or less 1: Sheet depression 10 times More than once

[Non-lifting]
The non-liftability of the packaging bag 10 containing the sheet ST of the sheet packaging body 100 was confirmed. In the confirmation of non-lifting property, it was evaluated whether or not the packaging bag 10 was lifted (non-lifting property) when the sheet ST was pulled out from the sheet laminated body SL through the outlet 20 of the sheet packaging body 100. The non-lifting property was evaluated according to the following criteria. When the non-lifting property was evaluated as 3 or more, it was evaluated as good (difficult to lift).
5: No lifting of packaging bag 4: Lifting of packaging bag 10 with 1 or more and 3 or less sheets remaining 3: Lifting of packaging bag 10 with 4 or more and 6 or less sheets remaining 2: Sheet There is a lift of the packaging bag 10 with 7 or more pairs remaining and 9 pairs or less 1: There is a lift of the packaging bag 10 with 10 or more pairs of sheets remaining

[Durability (tear at the end)]
The durability of the packaging bag 10 containing the sheet ST of the sheet packaging body 100 was confirmed. In the confirmation of durability, it was evaluated whether or not the end portion 22 of the outlet 20 was torn when the sheet ST was pulled out from the sheet laminate SL through the outlet 20 of the sheet package 100. The durability was evaluated by conducting the test three times each and using the following criteria. When the durability was evaluated as 2 or more, it was evaluated as good (the end is hard to tear).
3: No end tears occurred 2: End tears occurred 1-2 times during use 1: Edge tears occurred 3 times during use

Hereinafter, Examples and Comparative Examples will be described.

[Example 1]
In the sheet package 100, as shown in FIGS. 1 to 4, the base of the outlet 20 formed on the upper surface 11 of the packaging bag 10 is formed by a linear first slit 21 (perforation), and the outlet 20 is formed. Both ends of the above were formed by a second slit 22 (cuts 22a, 22b) and a second slit 23 (cuts 23a, 23b) extending in a V shape. The length L2 of the outlet 20 in the first direction (X direction) was set to about 180 mm. The length L3 of the second slit 22 (cuts 22a, 22b) and the second slit 23 (cuts 23a, 23b) was set to about 11.5 mm (about 6.4% of the length L2 of the outlet 20). .. The maximum width W2 of the region where the second slits 22 (cuts 22a and 22b) and the second slits 23 (cuts 23a and 23b) spread in a V shape is about 20 mm (about 20 mm with respect to the depth W1 of the upper surface 11 of the packaging bag 10. 10%). In the obtained sheet package 100, the outlet 20 formed on the upper surface 11 of the packaging bag 10 includes a first slit extending in the first direction and intersects the first direction (X direction) in the second direction (Y). It has a pair of flaps FL (flaps FL1, FL2) arranged side by side with the outlet 20 in the direction). The prepared test piece was evaluated for pull-out resistance, non-depression, non-lifting property, and durability (tear at the end). The results are shown in Table 1.

[Example 2]
In the sheet package 100, as shown in FIGS. 10 and 11, the third slits 24 (cuts 24a and 24b) continuous with the pair of second slits 22 and the second slits 23 continuously formed with the pair of second slits 23. The three slits 25 (cuts 25a and 25b) are formed so as to bend inward of the V shape forming the shape of the pair of second slits 22 and 23, and the third slits 24 (cuts 24a and 24b) and the third slit 24 (cuts 24a and 24b) and the third slit 25 are formed. The radius of curvature of the slit 25 (cuts 25a, 25b) is about 5 mm, and the arc degree (radian) θ3 of the third slit 24 (cuts 24a, 24b) and the third slit 25 (cuts 25a, 25b) is 5π / 4 (225 °). ), A test piece was prepared and evaluated in the same manner as in Example 1. The results are shown in Table 1.

[Example 3]
In the sheet package 100, as shown in FIGS. 13 and 14, the third slits 24 (cuts 24a and 24b) and the third slits 25 (cuts 25a and 25b) form the shapes of the second slits 22 and 23. A test body was prepared and evaluated in the same manner as in Example 2 except that it was formed so as to bend toward the outside of the V shape. The results are shown in Table 1.

[Comparative Example 1]
In the sheet package 100, as shown in FIG. 16, the outlet 20 is formed only by linear slits (perforations), and the length L2 of the outlet 20 (slit) in the first direction (X direction) is about. The evaluation was performed in the same manner as in Example 1 except that the thickness was 180 mm. The results are shown in Table 1.

From Table 1, the upper surface 11 of the packaging bag 10 has an outlet 20 formed by a second slit 22 (cuts 22a, 22b) and a second slit 23 (cuts 23a, 23b) whose both ends expand in a V shape. The sheet package 100 had good pull-out resistance value, non-depression property, non-lifting property, and durability (Examples 1 to 3).

On the other hand, the sheet package having an outlet formed only by linear slits (perforations) on the upper surface of the packaging bag has a withdrawal resistance value of less than 100 gf, and has both non-depression property and non-lifting property of 3. It was less than 2 and the durability was less than 2 (Comparative Example 1).

Further, the sheet package 100 in which the third slits 24 and 25 continuous with the second slits 22 and 23 are formed in the outlet 20 so as to bend inward of the V shape forming the shape of the second slits 22 and 23. Has further improved durability (Example 2).

Further, the sheet package 100 in which the third slits 24 and 25 continuous with the second slits 22 and 23 are formed in the outlet 20 so as to bend outward in the V shape forming the shape of the second slits 22 and 23. Further improved the non-lifting property (Example 3).

From these results, the outlet formed on the upper surface of the packaging bag includes a first slit extending in the first direction, and has a pair of flaps arranged with the outlet in the second direction intersecting the first direction. It was found that the sheet package has excellent sheet take-out property.

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 modifications can be made within the scope of the invention described in the claims. ..

100 sheet packaging ST sheet (sanitary tissue paper)
SL sheet laminate 10 Packaging bag 11 Top surface 11a Center 12 Bottom surface 13 Front surface 14 Back surface 15 Side surface 16 Side surface 20 Outlet OP opening 21 First slit (base)
21a side end (branch end)
21b side end (branch end)
22 Second slit (end)
22a Notch 22b Notch 23 Second slit (end)
23a Notch 23b Notch C Cut part T Tie part FL1 1st flap FL2 2nd flap UB1 Upper bottom UB2 Upper bottom 24 3rd slit 24a Notch 24b Notch 25 3rd slit 25a Notch 25b Notch ET1 Tip ET2 Tip angle ET1 Tip θ2 Angle θ3 Radian 30 Sealed part 40 Sealed part

Claims (9)

A packaging bag that accommodates multiple stacked sheets,
It is formed on the upper surface of the packaging bag and has an outlet from which the sheet is pulled out.
The outlet includes a first slit extending in the first direction.
A sheet package having a pair of flaps arranged across the outlet in a second direction intersecting the first direction. The sheet package according to claim 1, wherein the flap has a trapezoidal shape in which the upper bottom constitutes the first slit. The sheet package according to claim 2, wherein at least one end of the outlet is formed by a pair of second slits extending in a V shape. The sheet package according to claim 3, wherein the angle between the first slit and the second slit is 100 ° or more and 130 ° or less. The sheet package according to claim 3 or 4, wherein the angle between the pair of second slits is 100 ° or more and 170 ° or less. The sheet wrapping body according to any one of claims 3 to 5, which is formed continuously in the second slit and has a third slit extending in an arc shape from one of the ends. The sheet package according to claim 6, wherein the third slit bends toward the side approaching the first slit. The sheet package according to claim 6 or 7, wherein the radius of curvature of the third slit is 5 mm or more and 20 mm or less. The sheet package according to any one of claims 6 to 8, wherein the radian of the third slit is 5π / 4 or more.

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