JP6208277B2 - Packaging bag - Google Patents

Description

  The present invention relates to a packaging bag in which paper hygiene articles such as roll paper such as toilet paper or cartons for tissue paper are packaged.

DESCRIPTION OF RELATED ART Conventionally, the package body which packaged the paper-made hygiene article which gave the fragrance | flavor to toilet paper or a paper tube, for example with the film is known (for example, refer patent document 1).
The film used for the package is generally a polyethylene film or a polypropylene film, but these films are not preferable from the viewpoint of gas barrier properties. The fragrance permeates the film and leaks to the outside during storage and display at the store.
Then, what packaged paper hygiene articles using a gas barrier resin film is proposed (for example, refer to patent documents 2).

Japanese Patent Application Laid-Open No. 2014-223922 Japanese Patent Laying-Open No. 2015-63316

  By the way, in order to make it easier to open the packaging bag, there are those formed with perforations, but as the number of perforations increases, it becomes easier to open the packaging bag, but the perfume easily leaks from the perforations. There is a problem such as. Further, depending on the size of the cut, there is a possibility that foreign matters such as insects may be mixed.

  Accordingly, an object of the present invention is to provide a packaging bag that can properly store paper hygiene articles and is easier to open.

To solve the above issues,
Invention of Claim 1 is a packaging bag provided with the bag main-body part which accommodates the paper hygiene articles containing a fragrance | flavor,
The bag body is
It has the property of being torn in a straight line in one direction and is formed from a film having a gas barrier property, and a notch having a straight cut extending in the one direction is formed,
On one end side of the bag body part, a grip part formed by joining facing surfaces of the film is provided,
The notch is formed on the handle portion side of the bag body portion,
One end of the bag body is provided with a gusset fold where the film is gusset-folded,
The grip portion is formed by joining facing surfaces of the film forming the gusset fold portion,
A first notch is formed at a position avoiding the vicinity of the end in the one direction on the grip portion side of the one surface where the film is not folded in the gusset folding portion,
Adjacent to the one surface of the gusset fold portion, on the handle portion side of the other surface where the film is folded , avoid the vicinity of the end in the one direction, and at a position spaced apart from the first notch. A notch is formed,
The first notch and the second notch have substantially the same position in the other direction substantially orthogonal to the one direction,
The one direction is characterized in that in the vertical direction is a direction substantially orthogonal.

The invention according to claim 2 is the packaging bag according to claim 1,
A plurality of the first notches are formed apart from each other at substantially the same position in the other direction substantially orthogonal to the one direction of the bag body.
The invention according to claim 3 is the packaging bag according to claim 1 or 2,
The total length of all the notches of the notch is 45 mm or less.
Invention of Claim 4 is a packaging bag as described in any one of Claim 1 to 3,
The film has an ethylene-vinyl alcohol copolymer resin layer,
The ethylene-vinyl alcohol copolymer resin layer has an ethylene content of more than 32 mol% and less than 48 mol% .

  ADVANTAGE OF THE INVENTION According to this invention, while being able to store a paper hygiene article appropriately, the packaging bag which is easier to open can be provided.

It is a perspective view which shows the packaging bag of one Embodiment to which this invention is applied. It is a perspective view which shows typically the state by which the taking-out port of the packaging bag of FIG. 1 was cut open.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.
FIG. 1 is a perspective view showing a packaging bag 100 according to an embodiment to which the present invention is applied, and FIG. 2 is a perspective view schematically showing a state in which an outlet 30 of the packaging bag 100 is cut open.

As shown in FIGS. 1 and 2, a packaging bag 100 is a roll of paper rolls R such as toilet paper and paper towels as paper hygiene articles stacked and gusseted with a packaging film F. The bag main body part 10 which accommodates this, and the handle part 20 provided in the upper part of this bag main body part 10 are provided.
In the following description, the direction from the grip portion 20 of the packaging bag 100 to the mounting surface (bottom surface) of the packaging bag 100 is defined as the vertical direction, and one direction orthogonal to the vertical direction is defined as the left-right direction. The direction orthogonal to both directions is defined as the front-rear direction.

In the gusset packaging, a roll paper R is included in a packaging film F formed in a cylindrical shape, and both end openings are sealed by a heat sealing process.
The heat fusion treatment is generally performed at 160 to 250 ° C., for example, and the packaging film F is particularly suitable for the heat fusion treatment in this temperature range. More specifically, the packaging film F preferably has a heat seal range of JIS Z 1707 of 10 N / 15 mm under the conditions of a pressure of 0.2 MPa, 1 second, and 110 ° C.
In addition, about the procedure of gusset packaging, a well-known method can be applied and detailed description is abbreviate | omitted here. In a state of being pushed into the inside of the cylinder so as to be a time mold, one opening is sealed by heat sealing or the like to form a three-sided closed bag-like precursor, and then covered. The roll paper R which is a package is inserted into the bag, and then the other opening is heat-sealed and sealed.

Moreover, the handle part 20 is formed in the said heat sealing | fusion process with the sealing of any one opening part (for example, opening part which becomes upper side in FIG. 1). That is, the handle portion 20 is a surplus portion that is separated from a bag portion (bag main body portion 10) in which a plurality of roll papers R,.
Two finger hooking holes 21 and 21 are formed at a substantially central portion in the left-right direction of the handle portion 20.

  The packaging film F is a resin film having a laminated structure, and includes, for example, an intermediate layer, two outer layers sandwiching the intermediate layer, and two adhesive layers that bond the intermediate layer and the outer layer.

The two outer layers are, for example, polyethylene resin layers having a melting point of 150 ° C. or lower. By making the two outer layers of the packaging film F into polyethylene resin layers, the packaging film F can be sealed by heat-sealing treatment.
Here, the lower melting point is preferable because the fusion treatment can be performed at a low temperature. However, if the melting point is excessively low, for example, a hole may be formed at the time of thermal fusion, and the lower limit is substantially about 80 ° C.
Specific examples of the polyethylene resin layer include a linear low density polyethylene film layer (LLDPE), a low density polyethylene film layer (LDPE), and a medium density polyethylene film layer (MDPE). Of these, a linear low-density polyethylene film layer (LLDPE) having a density of 0.910 to 0.940 g / cm ³ and a melting point of 110 to 120 ° C. is preferred in terms of heat-fusibility and cost. Note that the two outer layers are not necessarily the same kind of polyethylene resin layer.

The middle layer is, for example, an ethylene-vinyl alcohol copolymer resin layer (EVOH resin layer) having a melting point of 180 ° C. or lower. By using the EVOH resin layer as the middle layer of the packaging film F, it is possible to ensure a high gas barrier property suitable for packaging of a scented toilet roll to which a fragrance has been added, for example, as a whole packaging film F.
A known resin can be used as a specific resin for forming the EVOH resin layer. Examples of commercially available products include Eval manufactured by Kuraray Co., Ltd. and Soarnol manufactured by Nippon Synthetic Chemical Industry Co., Ltd.

In addition, the EVOH resin layer is preferably close to the melting point of the two outer polyethylene resin layers, more preferably 180 ° C. or less, in order to improve the heat fusion property of the packaging film F as a whole. Here, although the EVOH resin layer can lower the melting point to some extent by increasing the ethylene content, it becomes difficult to ensure gas barrier properties with an increase in the ethylene content, and substantially. The lower limit is about 150 ° C.
The ethylene content of the EVOH resin layer is preferably more than 32 mol% and less than 48 mol%, more preferably 38 mol% or more and 44 mol% or less. When the ethylene content is 32 mol% or less, the heat-sealing property of the packaging film F as a whole is lowered, and when the ethylene content is 48 mol% or more, the gas barrier property and the unsealing property described below (in the TD direction). This is because the ease of tearing is reduced.

  The adhesive layer is, for example, an acid-modified polyolefin resin layer. Specific examples of acid-modified polyolefin resins include maleic acid-modified polypropylene resins, carboxylic acid-modified polypropylene resins, and maleic anhydride-modified polypropylene resins.

The packaging film F preferably has an oxygen permeability of 40 cc / m ² · day · atm or less.
The polyethylene resin layer constituting the two outer layers described above has a low melting point and excellent heat-fusibility, but has a low gas barrier property. However, in the packaging film F, the polyethylene resin layer is extremely between the two outer polyethylene resin layers. By interposing an intermediate layer which is an EVOH resin layer having a low oxygen permeability, the oxygen permeability can be reduced to 40 cc / m ² · day · atm or less.
Here, the lower limit value of the oxygen permeability of the packaging film F is not particularly limited, but for example, considering that it is a film suitable for toilet roll packaging, such as cost, the lower limit value is substantially lower. Is about 1.0cc / m ² · day · atm.
The oxygen permeability is a value measured under measurement conditions of 23 ° C. and 65% RH based on JIS K 7126 (B).

The packaging film F has a total thickness of 22 to 45 [μm], two outer layers of 5 to 15 [μm], middle thickness of 2 to 10 [μm], and two adhesive layers Each of the thicknesses is preferably about 2 to 5 [μm]. Note that the two outer layers and the adhesive layer do not necessarily have the same thickness.
When the packaging film F has the above-described configuration of each resin layer and has this thickness, when the gusset packaging is performed, the portion where the packaging films F are laminated, that is, the handle portion 20 is formed. Even so, heat is sufficiently transmitted to obtain good heat sealability, and the perfume imparted to the roll paper R is effectively prevented from leaking out through the packaging film F. become. In addition, it is possible to ensure moderate flexibility following the shape of the cylindrical roll paper R, and strength that can be easily opened by a human hand but not unintentionally broken.
The thickness of the packaging form F and each layer can be confirmed, for example, by measuring the cross section with an optical microscope.

The packaging film F has a tensile strength in JIS Z 1707 of 20 to 40 MPa, preferably 25 to 35 MPa in the MD direction (up and down direction in FIG. 1), and in the TD direction (left and right direction and front and back direction in FIG. 1). 25 to 45 MPa, preferably 30 to 40 MPa. The packaging film F has an elongation in JIS Z 1707 of 150 to 330% in the MD direction, preferably 160 to 200%, and 520 to 800%, preferably 650 to 750% in the TD direction. The tensile strength and elongation are measured at a tensile speed of 500 [mm / min].
Furthermore, as for the packaging film F, the result in the tear test (Elmendorf method) in JIS K 7128 is 200 to 400 N / cm in the MD direction, preferably 250 to 350 N / cm, and 100 to 300 N / cm in the TD direction. Preferably it is 150-250 N / cm.
Thus, the packaging film F is easier to tear in the TD direction than the MD direction, and can be said to have a property of being torn linearly in the left-right direction and the front-rear direction (one direction).

  Further, the packaging film F can be produced by, for example, a co-extrusion method using a T-die method, an extrusion laminating method, or the like, and a known method can be arbitrarily selected for forming into a cylindrical shape for gusset packaging. Applicable.

  As described above, the packaging film F has a gas barrier property and a property of being linearly torn in the left-right direction and the front-rear direction (one direction) substantially orthogonal to the up-down direction. Further, a first notch 51 and a second notch 52 for forming an outlet 30 (see FIG. 2) are formed on the upper end side in FIG. 1 of the bag body 10 formed from the packaging film F. Is formed.

That is, a gusset fold portion 40 in which the packaging film F is gusset-folded is provided at the upper end portion in FIG. 1 of the bag main body portion 10, and opposing surfaces of the packaging film F forming the gusset fold portion 40 are opposed to each other. The handle part 20 is formed by joining.
And the 1st notch 51 which has the linear cut | interruption extended in the left-right direction in the handle part 20 side of the substantially horizontal center of the front surface (one surface) 41 in which the packaging film F in the gusset folding part 40 is not folded. Is formed. Moreover, it adjoins the front surface 41 in the gusset folding part 40, and it is extended in the front-back direction at the handle part 20 side of the left-right both side surfaces (other surface) 42 and 42 where the packaging film F is folded in the front-back direction approximate center. A second notch 52 having a linear cut is formed.
The first notch 51 and the second notch 52 are substantially equal in vertical position.

  The length of the first notch 51 in the left-right direction is preferably 3 to 5 [mm], for example. Similarly, the length in the front-rear direction of each second notch 52 is preferably 3 to 5 [mm], for example. The reason why the upper limit is set to 5 [mm] is that when it exceeds 5 [mm], there is a possibility that foreign matters such as insects may be mixed. In addition, about a minimum, a smaller value is preferable.

A plurality of first notches 51 may be formed apart from each other at substantially the same position in the vertical direction of the bag body 10. Here, the total number of the first notch 51 and the second notch 52 depends on the width and length of each notch. For example, in the case of 12 rolls, the blade thickness of the notch forming cutter is 0.38 [mm]. It is preferable that the total length of all notch cuts is set to be smaller than 55 [mm] (the area of the opening formed by all the notches is 20.9 [mm ² ]). . That is, if the total length of all the notch cuts is greater than 55 [mm], the evaluation of the aroma retaining property when the roll paper R is a scented toilet roll is deteriorated.
Here, for example, if the packaging bag 100 for 12 rolls is converted into a substantially rectangular parallelepiped having a vertical direction of 342 [mm], a horizontal direction of 204 [mm], and a longitudinal direction of 204 [mm], the opening formed by all the notches. The area of the part is preferably smaller than 0.0058% with respect to the surface area of the packaging bag 100 (362304 [mm ² ]). Note that the blade thickness of the cutter for notch formation can be arbitrarily changed within a range of 0.1 to 0.7 [mm], for example. If the cutter blade thickness is 0.1 [mm], all notch cuts If the cutter thickness is 0.7 [mm], the total length of all notch cuts is 29.9 [mm].

Examples of the paper hygiene article will be described by exemplifying roll paper R such as toilet paper and paper towel. However, the paper hygiene article is not limited to these examples, and is a carton containing a tissue paper, a paper diaper, or an absorbent. Absorbent articles such as pads and sanitary products may be applied.
Further, for example, twelve toilet paper roll papers R are accommodated in the bag body 10, and specifically, four stages of toilet paper roll paper R are stacked and accommodated in three stages. . The number of roll paper R packaging is an example, and is not limited thereto, and can be arbitrarily changed as appropriate.

  The roll paper R may be a cored toilet roll obtained by winding a belt-shaped toilet paper around a paper tube, or may be a coreless toilet roll called coreless. The size of the roll paper R is not particularly limited. For example, the height (width) is 100 to 120 [mm], the winding diameter (roll diameter) is 100 to 120 [mm], and the core diameter. Is generally 10 to 48 [mm] and the winding length is 20 to 100 [m].

The toilet paper constituting the roll paper R is also not particularly limited. For example, the number of plies is 1 to 3 plies, the total paper thickness is 100 to 360 [μm], and the rice weight is 11 to 25 g per ply. it is in a range of / m ^2.
In addition, the tsubo is based on the tsubo measure method of JIS P 8124 (1998). The paper thickness was adjusted 5 times under the conditions of JIS P 8111 (1998) and then 5 times using a dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (manufactured by Ozaki Seisakusho) under the same conditions. The average value measured.

The roll paper R is a toilet roll with a fragrance to which a fragrance is added. Examples of the position where the fragrance is attached include front and back surfaces of toilet paper, paper tubes, and the like.
As the fragrance, a natural or synthetic fragrance can be used. Specific examples of the fragrance include natural fragrances such as lemon oil, grapefruit oil, rosemary oil, peppermint oil, mandarin oil, lime oil, yuzu oil, chamomile oil, lavender oil, rose oil, spearmint oil, and the like. And synthetic fragrances such as alcohols such as linalool, citronellol, menthol and geraniol. These may be used alone or in combination as a blended fragrance.
In addition, a fragrance | flavor may be diluted using vegetable oils, such as mineral oil, such as dipropylene glycol and paraffin oil, castor oil, and soybean oil, for adjustment of fragrance intensity | strength and volatility.

Next, a method for opening the packaging bag 100 will be described.
The user puts a finger or the like on the first notch 51 of the front surface 41 of the gusset folding portion 40 of the packaging film F and fixes the bag body portion 10 side upward, more specifically, diagonally backward. Pull up. Thereby, the front surface 41 of the gusset folding part 40 of the packaging film F is cut open from the first notch 51 in the left-right direction. That is, the first notch 51 is expanded in the left-right direction so that the cut line of the first notch 51 reaches the left and right side surfaces 42, 42 of the gusset folding portion 40.
The left and right side surfaces 42 and 42 of the gusset fold 40 are cut from the front to the back at positions substantially equal to the vertical direction of the front surface 41 of the gusset fold 40. When the cut formed by cutting is connected to the front end portion of the second notch 52, the packaging film F is cut from the rear end portion of the second notch 52 to the rear surface of the gusset folding portion 40. Go.
Thereby, the front surface 41 of the gusset folding part 40 and the left and right side surfaces 42, 42 are cut open to form the outlet 30 (see FIG. 2).

  Examples of the present invention and comparative examples will be described below.

<Examination of the number of notches>
The aroma retaining property according to the number of notches will be described with reference to the following Examples 1 to 5 and Comparative Examples 1 to 3.

(Packaging bag)
Three layers of four toilet rolls were packed in a packaging film and used for the test.
Packaging bag size: Up and down direction 342 [mm], left and right direction 204 [mm], front and back direction 204 [mm]
Packaging film: Laminated structure in which the middle layer is sandwiched between two outer layers via an adhesive layer, overall thickness 27 [mm]
Middle layer: EVOH resin layer, thickness 3 [μm]
Outer layer: Polyethylene resin layer, thickness 9 [μm]
EVOH resin layer ratio: 11%
Ethylene content: 38mol%
Adhesive layer: Maleic anhydride-modified polypropylene resin layer, thickness 3 [μm]

(notch)
Number of notches: 1 <Example 1>, 3 <Example 2>, 5 <Example 3>, 7 <Example 4>, 9 <Example 5>, 11 <Comparative example 1>, 13 <Comparative example 2 >, 15 <Comparative Example 3>
Notches were formed in the following numbers on the front surface and the left and right side surfaces of the gusset folding portion of the packaging bag.
One on the front side <Example 1>, one on the front side and one on each of the left and right sides <Example 2>, one on the front side and two on both the left and right sides <Example 3>, on the front side 3 on the left and right sides <Example 4>, 3 on the front and 3 on the left and right sides <Example 5>, 3 on the front and 4 on the left and right sides < Comparative Example 1>, 5 on the front and 4 on the left and right sides <Comparative Example 2>, 5 on the front and 5 on the left and right sides <Comparative Example 3>
Length of each notch: 5 [mm]
Distance between adjacent faces on each side: 5 [mm]
Blade thickness of the notch forming cutter: 0.38 [mm]

(Toilet roll)
Size: Height 114 [mm], winding diameter 106 [mm], core diameter 41 [mm]
Toilet paper: 2 ply, paper thickness 135 [μm], 14.5 tsubo per ply [g / m ² ]

(Scent retention test)
Fragrance (Ogawa Fragrance Co., Ltd .: Fruity Floral BR248891) was added to each toilet roll in an amount of 0.06 g, and 12 toilet rolls with fragrance were packaged with a packaging film. It was left to stand for 24 hours under conditions of a temperature of 50 ° C. and a humidity of 50%, and then opened, and whether or not the toilet roll scent remained was subjected to sensory evaluation by five evaluators.

  In Table 1, ○ in the column of aroma retention indicates that all five people “scent firmly”, Δ indicates that “scent is slightly weak”, and × indicates that “scent is weak” by one or more people. Is shown.

[Evaluation]
Until the number of notches was nine (the total length of all cuts was 45 [mm]) (see Examples 1 to 5), the fragrance remained sufficiently. On the other hand, if the number of notches is 11 (the length of all cuts added is 55 [mm]) or more (see Comparative Examples 1 to 3), the fragrance is lowered and the number of notches is 13 (all cuts added). When the length was 65 [mm] or more (see Comparative Examples 2 and 3), the fragrance was weakened.

<Examination of ethylene content of EVOH resin layer>
The examination of the ethylene content of the EVOH resin layer will be described with reference to the following Examples 11 to 16 and Comparative Examples 11 to 22.

(Packaging bag)
Three layers of four toilet rolls were packed in a packaging film and used for the test.
Packaging bag size: Up and down direction 342 [mm], left and right direction 204 [mm], front and back direction 204 [mm]
Packaging film: laminated structure in which an intermediate layer is sandwiched between two outer layers via an adhesive layer Overall thickness: 26 [μm] <Examples 11 and 14, Comparative Examples 11, 14, 17, 20>, 27 [mm] < Examples 12, 15, Comparative Examples 12, 15, 18, 21>, 30 [mm] <Examples 13, 16, Comparative Examples 13, 16, 19, 22>
Outer layer: polyethylene (PE) resin layer, thickness 8.5 [μm] <Examples 11 and 14, Comparative Examples 11 and 14>, thickness 9 [μm] <Examples 12 and 15, Comparative Examples 12, 15, and 18> , Thickness 9.5 [μm] <Examples 13 and 16, Comparative Examples 13, 16, 19, 22>, thickness 7.5 [μm] <Comparative Examples 17 and 20>, thickness 8 [μm] <Comparative Example 21>
Middle layer: EVOH resin layer, thickness 3 [μm] <Examples 11, 12, 14, 15; comparative examples 11, 12, 14, 15, 18>, thickness 5 [μm] <Examples 13 and 16, comparison Examples 13, 16, 17, 19-22>
EVOH resin layer ratio: 12% <Examples 11 and 14, Comparative Examples 11 and 14>, 11% <Examples 12 and 15, Comparative Examples 12, 15, and 18>, 17% <Examples 13 and 16, comparative Examples 13, 16, 19, 22>, 19% <Comparative Examples 17, 20, 21>
Ethylene content: 32 mol% <Comparative Examples 17-19>, 38 mol% <Examples 14-16, Comparative Examples 14-16>, 44 mol% <Examples 11-13, Comparative Examples 11-13>, 48 mol% <Comparison Examples 19 to 22>
Adhesive layer: Maleic anhydride-modified polypropylene resin layer, thickness 3 [μm]

(notch)
A notch with a length of 5 [mm] was formed in the approximate center in the left-right direction on the front surface of the folded gusset of the packaging bag.
Number of notches: 1 <Examples 11 to 16, Comparative Examples 17 to 22>, 0 <Comparative Examples 11 to 16>
Blade thickness of the notch forming cutter: 0.38 [mm]

(Toilet roll)
Size: Height 114 [mm], winding diameter 106 [mm], core diameter 41 [mm]
Toilet paper: 2 ply, paper thickness 135 [μm], 14.5 tsubo per ply [g / m ² ]

(Scent retention test)
Fragrance (Ogawa Fragrance Co., Ltd .: Fruity Floral BR248891) was added to each toilet roll in an amount of 0.06 g, and 12 toilet rolls with fragrance were packaged with a packaging film. It was left to stand for 24 hours under conditions of a temperature of 50 ° C. and a humidity of 50%, and then opened, and whether or not the toilet roll scent remained was subjected to sensory evaluation by five evaluators.

(Test of heat-fusibility)
It was visually confirmed whether the heat seal when gusset packaging was good, or when the seal surface was peeled off, the adhesive surface was peeled off immediately without being broken or whether there was no hole. The heat seal temperature at this time was 110 ° C.

(Openability test)
The packaging bag was opened by placing a finger on the notch so that the packaging film was torn to the left and right from the notch. The easiness of opening at this time was sensory-evaluated by five evaluators.

(Test of film shape after opening)
Whether the shape of the end of the packaging film after opening the packaging bag is straight or not, such as expansion and contraction, was visually confirmed.

In Table 2, “O” in the column of aroma retention indicates that all five people “scent firmly”, and × indicates that one or more people “scent is weak”.
In the column of heat fusibility, ◯ indicates that heat sealing was performed satisfactorily, and × indicates that defects such as insufficient heat sealing were observed.
Further, in the openability column, ◯ indicates that all 5 persons can be easily opened, and X indicates that one or more persons have not been able to open.
Moreover, in the column of the opened film shape, ◯ indicates that the end of the packaging film is straight, and X indicates that defects such as expansion and contraction are recognized at the end of the packaging film.

[Evaluation]
When the ethylene content of the EVOH resin layer was 32 mol% (see Comparative Examples 17 to 19), defective heat sealing was observed regardless of the thickness of the entire packaging film. Further, when the ethylene content is 48 mol% (see Comparative Examples 20 to 22), it is difficult to open even if a notch is formed regardless of the thickness of the entire packaging film, and the end of the packaging film after opening Defects were observed in the shape.
Thereby, it is considered that the ethylene content of the EVOH resin layer is preferably more than 32 mol% and less than 48 mol%. When the ethylene content is 38 mol% (see Examples 14 to 16), 44 mol% (See Examples 11 to 13), the fragrance remains sufficiently even if the notch is formed regardless of the thickness of the entire packaging film, and it is easy to open and packaging after opening. The edge of the film was straight.
Even when the ethylene content was 38 mol% or 44 mol%, when notches were not formed (see Comparative Examples 11 to 16), it was difficult to open regardless of the thickness of the entire packaging film.

As described above, according to the packaging bag 100 of the present embodiment, the bag body 10 has a property of tearing linearly in the left-right direction and the front-rear direction substantially orthogonal to the up-down direction, and has a gas barrier property. Since a notch (for example, the first notch 51) formed by the film F and extending in a direction substantially orthogonal to the vertical direction is formed, the packaging film F is formed from the notch. Is cut open in a direction substantially perpendicular to the vertical direction, and the outlet 30 can be easily formed.
Specifically, the upper end portion of the bag body portion 10 is provided with a gusset folding portion 40 in which the packaging film F is gusset-folded, and the opposing surfaces of the packaging film F forming the gusset folding portion 40 are opposed to each other. A first notch having a linear cut extending in the left-right direction on the handle 20 side of the front surface 41 where the packaging film F in the gusset fold 40 is not folded is formed. 51 is formed, the packaging film F is cut open from the first notch 51 in the left-right direction, and left and right so that the cuts of the first notch 51 reach the left and right side surfaces 42, 42 of the gusset fold 40. Expand in the direction. Further, the first notch 51 and the vertical position of the left and right side surfaces 42, 42 of the gusset folding portion 40 where the packaging film F is folded are substantially equal to each other and extend in the front-rear direction. Since the second notches 52 having existing straight cuts are respectively formed, the left and right side surfaces 42 and 42 are substantially equal in the up-and-down direction to the portion opened at the front surface 41 of the gusset folding portion 40. It is cut open from the front to the back at the position, and cut through the second notch 52 to the rear surface of the gusset fold 40. In this way, the front face 41 of the gusset fold 40 and the left and right side faces 42, 42 can be cut open to form the outlet 30.
Moreover, in the storage state of the roll paper R in which the outlet 30 is not formed, not only can the contamination of foreign matters such as insects be properly suppressed as compared with the conventional one in which the perforation is formed, For example, even if the paper hygiene article is provided with a fragrance such as a scented toilet roll, the fragrance can be made difficult to leak.
Therefore, the roll paper R can be properly stored, and the packaging bag 100 that is easier to open can be provided.

The present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the packaging film F in which the first notch 51 and the second notch 52 are formed is illustrated. However, this is an example, and the present invention is not limited to this. It is not necessary that the notch is formed. That is, any one notch (for example, the 1st notch 51 etc.) should just be formed in the packaging film F among the 1st notch 51 and the 2nd notch 52. FIG.

  Moreover, the packaging film F illustrated in the above embodiment is an example and is not limited thereto, and can be arbitrarily changed as long as the heat sealing property of the packaging film F is not impaired. For example, it is possible to provide a layer used for more effectively forming a laminated film such as a cross-linking agent layer for integrating the outer layer and the intermediate layer.

  Furthermore, in the above-described embodiment, a plurality of roll papers R,... (Paper hygiene articles) having substantially the same shape are stacked in the up-down direction on the bag body 10 and aligned in the left-right direction and the front-rear direction (the orthogonal direction) However, the accommodation mode of the plurality of roll papers R is not limited to this, and can be arbitrarily changed as appropriate. That is, it is not always necessary to stack a plurality of roll papers R,... In a vertical direction, and similarly, a plurality of roll papers R,.

  In the above embodiment, the left-right direction and the front-rear direction substantially orthogonal to the up-down direction are set as one direction, and the up-down direction is set as the other direction. However, the embodiment is not limited to this, and can be arbitrarily changed as appropriate. is there.

DESCRIPTION OF SYMBOLS 100 Packaging bag 10 Bag main-body part 20 Grasping part 30 Taking-out port 40 Gusset folding part 41 The front (one side)
42 Side (other side)
51 First notch 52 Second notch R Roll paper (paper hygiene article)

Claims (4)

A packaging bag comprising a bag body portion containing a paper hygiene article containing a fragrance,
The bag body is
It has the property of being torn in a straight line in one direction and is formed from a film having a gas barrier property, and a notch having a straight cut extending in the one direction is formed,
On one end side of the bag body part, a grip part formed by joining facing surfaces of the film is provided,
The notch is formed on the handle portion side of the bag body portion,
One end of the bag body is provided with a gusset fold where the film is gusset-folded,
The grip portion is formed by joining facing surfaces of the film forming the gusset fold portion,
A first notch is formed at a position avoiding the vicinity of the end in the one direction on the grip portion side of the one surface where the film is not folded in the gusset folding portion,
Adjacent to the one surface of the gusset fold portion, on the handle portion side of the other surface where the film is folded , avoid the vicinity of the end in the one direction, and at a position spaced apart from the first notch. A notch is formed,
The first notch and the second notch have substantially the same position in the other direction substantially orthogonal to the one direction,
The packaging bag is characterized in that the one direction is a direction substantially orthogonal to the vertical direction.   2. The packaging bag according to claim 1, wherein a plurality of the first notches are formed apart from each other at substantially the same position in the other direction substantially orthogonal to the one direction of the bag body. The packaging bag according to claim 1 or 2, wherein a length obtained by adding all the notches of the notch is 45 mm or less. The film has an ethylene-vinyl alcohol copolymer resin layer,
The packaging bag according to any one of claims 1 to 3, wherein the ethylene-vinyl alcohol copolymer resin layer has an ethylene content of more than 32 mol% and less than 48 mol% .

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