JP2011189965A - Packaging bag and roll product package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging bag and a roll product package provided with a slit which does not hurt fingers when a plurality of fingers are inserted therein and prevents a damage in a handle part. <P>SOLUTION: In this packaging bag 100, a tubular film package includes a body 6 for storing a roll product 50 and a handle 4, the handle is flat with gussets 8 folded down symmetrically and secured and folded on both right and left sides of a tubular film and provided with a finger insertion slit 2 for a plurality of fingers to be inserted simultaneously, and the slit includes continuously a slit main part 2a extending sideways S joining the right and left gussets and an arc shaped slit part 2b extending toward the upper end of the handle from both ends of the slit main part and ends extending toward the inside while outwardly curved in a convex shape, thereby storing a plurality of roll products satisfying the relationship W<SB>1</SB>=0.15×W<SB>0</SB>to 0.25×W<SB>0</SB>when W<SB>0</SB>is the distance between the outermost sides of the arc shaped slit part and W<SB>1</SB>is the length from the outermost side to the terminal end 2c of the arc shaped slit part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a packaging bag for storing a plurality of thin paper roll products such as toilet paper and paper towels, and a roll product package for storing the roll products in a packaging bag.

As a packaging bag for toilet paper or the like, a bag having a handle part formed by folding a gusset symmetrically into a tubular film such as polyethylene to form a main body and folding the upper part thereof into a flat shape is used. The handle portion is provided with finger hook holes for the purchaser to carry. However, the weight is excessive particularly in a packaging bag containing a large number of rolls, and the fingertips may become painful in the two hole hook holes. In the case of one hole, the handle portion may be broken during carrying.
For this reason, the present applicant has developed a packaging bag provided with a downward arc-shaped simultaneous finger-fitting slit in the handle portion through which a plurality of fingers can be inserted (see Patent Document 1). In addition, a handbag having an oval and substantially C-shaped cut with an uncut portion upward has been reported (see Patent Document 2).

  On the other hand, a technique has been reported in which a perforation is provided in a bag in order to facilitate opening when the contents are taken out from the packaging bag (see Patent Document 3).

Japanese Patent No. 4350430 (Fig. 7) Utility Model Registration No.1171230 Utility Model Registration No. 2591646

However, when the present inventors examined, when providing the slit which can insert a plurality of fingers in the handle part, the finger part may be painful depending on the shape, or the handle part may be damaged due to the weight of the contents. There was found.
Accordingly, an object of the present invention is to provide a packaging bag and a roll product package having a slit that prevents a finger from being damaged even if a plurality of fingers are inserted and prevents the handle portion from being damaged.

In order to solve the above-mentioned problems, a packaging bag of the present invention comprises a main body for storing a roll product such as a plurality of toilet paper and a tubular film package having a handle on the upper end side of the main body. The handle has a flat shape in which gussets are folded symmetrically on both the left and right sides of the tubular film, and are fixed in a flat shape. Provided across the folding edge of the gusset, and further provided with a seal line surrounding the slit on the handle portion, the slit extending along the lateral direction connecting the left and right gussets, and the slit main portion From both ends, the arcuate slits that extend outward and terminate while projecting outwardly toward the upper end of the handle part are continuously formed, and in the lateral direction, the arcuate slits are formed. The spacing _{W 0} of the outermost ends of parts, and the length _{W 1} of the outermost of said arcuate slit portion to the terminal _end, satisfy the relationship of W 1 = 0.15 × _W 0 to 0.25 × _{W 0} .

An opening perforation is provided on the side surface and the other side surface adjacent to the side surface so as to sandwich a side fold ridge line forming both side ends of any one side surface among the four side surfaces constituting the packaging bag,
The opening perforation extends in parallel and downward along the side surface fold ridge line from a predetermined position below the handle portion, and R ₁ × (1.0-2. 0) (where R ₁ is the diameter of the roll product).

When the plurality of roll products are stored in the packaging bag and viewed from the direction orthogonal to the lateral direction, the inclination angle of the gable roof-shaped panel portion from the side surface constituting the packaging bag toward the handle portion is The perforation for opening is on the panel fold ridge line and on the panel fold ridge line with respect to the length R ₂ of the panel fold ridge line perpendicular to the horizontal direction among the ridge lines of the panel section. it is preferable that the 0.2 × _{R 2} ~0.6 × _R 2 distance _{R 3} and starting from the bottom of the hand.

The relative diameter _{R 1} of the roll product, the interval _{R 4} and the side mountain fold edge line and the opening perforation preferably satisfies the 0.3 × _R 1 to 0.5 × _{R 1} relationship.

  The roll product package of the present invention is formed by storing the plurality of roll products in the packaging bag.

  According to the present invention, even if a plurality of fingers are inserted, finger pain does not occur, and a packaging bag having a slit that prevents damage to the handle portion can be obtained.

It is a top view of the packaging bag which concerns on embodiment of this invention. It is sectional drawing which follows the AA line of FIG. It is the elements on larger scale of FIG. It is a perspective view which shows the roll product package which accommodated two roll products in the up-down direction in the packaging bag. It is a figure which shows the aspect which opens a packaging bag along the perforation for opening and takes out one roll product. It is a figure which shows the roll product package when it sees from the direction of arrow T of FIG. It is a figure which shows the modification of an arc-shaped slit part. It is a figure which shows another modification of an arc-shaped slit part.

Hereinafter, embodiments of the present invention will be described. In the following description, the handle 4 side of the packaging bag 100 is the “upper end” side, and the opposite side is the “lower end” side.
FIG. 1 shows a plan view of a packaging bag 100 according to an embodiment of the present invention. The packaging bag 100 includes a main body portion 6 made of a tubular film and a handle portion 4 on the upper end side of the main body portion 6. As shown in the sectional view 2 along the line A-A in FIG. 1, the packaging bag 100 is folded inward symmetrically with the left and right sides of the tubular film as gussets 8, and the folding edges 8a of each gusset 8 are packaging bags. The seal lines 4a to 4i are formed by folding in the shape of a plane so as to be close to each other in the vicinity of the center in the lateral direction S (the left-right direction in FIG. 1) of 100, and heat-sealing the folded portion at the upper end. In this way, a rectangular flat portion integrated and fixed by the seal lines 4 a to 4 i forms the handle portion 4.
The main body 6 has an opening at the lower end, accommodates roll products such as toilet paper from the lower end side, and seals the opening end with a heat seal. Further, when the roll product is stored, the gusset of the main body 6 is developed, and the main body 6 constitutes four side surfaces having a rectangular cross section. In FIG. 1, of the four side surfaces, the side surface 21 appears on the front side.

The handle portion 4 is formed in a portion between the upper seal line 4 d and the lower seal line 4 c that extend in parallel to each other in the lateral direction S of the packaging bag 100. Moreover, the area | region pinched by the upper side seal line 4d and the lower side seal line 4c among the both ends along the vertical direction L of the packaging bag 100 is heat-sealed by the left side seal line 4e and the right side seal line 4f, respectively.
Further, a rectangular reinforcing film 4i is laminated between the upper seal line 4d and the lower seal line 4c and inside the left seal line 4e and the right seal line 4f, and the side along the lateral direction S of the reinforcing film 4i is The upper seal line 4d and the lower seal line 4c are integrated with the handle portion 4. On the other hand, the inner sides of the sides along the longitudinal direction L of the reinforcing film 4 i are heat-sealed by inner seal lines 4 a and 4 b parallel to the longitudinal direction L, and are integrated with the handle portion 4. Further, the middle seal line 4d is heat-sealed below the upper seal line 4d and between the inner seal lines 4a and 4b in parallel with the upper seal line 4d.

As described above, a substantially long portion having a non-cut-out portion upward in the middle of the rectangular area surrounded by the middle seal line 4d and the lower seal line 4c and between the inner seal lines 4a and 4b. A circular slit 2 is provided. The detailed configuration of the slit 2 will be described later.
Further, in this embodiment, an auxiliary seal line 4h that is parallel to the lateral direction S and shorter than the slit 2 is heat-sealed between the lower end of the slit 2 and the lower seal line 4c.

On the other hand, the right end of the side surface 21 forms a mountain fold ridge line 31, and a side surface (not shown) adjacent to the side surface 21 across the mountain fold ridge line (hereinafter referred to as “side surface mountain fold ridge line”) 31 is folded inward. Has been. Further, an opening perforation 10 extending in parallel and downward along the side surface mountain fold ridge line 31 from a predetermined position below the handle portion 4 is formed on the side surface 21 near the mountain fold ridge line 31.
The opening perforation 10 is on the side fold ridge line 31 at a predetermined position below the handle portion 4 (however, when a plurality of roll products are stored in the packaging bag 100, a portion that becomes a panel fold ridge line to be described later) ) At the start edge 10a, curved from the start edge 10a with a predetermined radius of curvature and separated from the side surface mountain fold ridge line 31, and then extends in parallel to the side surface mountain fold ridge line 31 to reach the end 10b. When the plurality of roll products are stored in the packaging bag 100, the end 10b is set to a position where the plurality of roll products are arranged from top to bottom (n-1). The reason for defining the position of the end 10b will be described later.

  Next, the detailed structure of the slit 2 is demonstrated using the elements on larger scale 3 of FIG. The slit 2 has a slit main portion 2a extending along the lateral direction S, and a substantially semicircular shape that bulges outwardly from the both ends of the slit main portion 2a toward the upper end of the handle portion 4 (upward in FIG. 3). And an arcuate slit portion 2b having an end 2c extending inward. And between the termination | terminus 2c of both arc-shaped slit parts 2b has comprised the upward non-cut-out part. Therefore, when the purchaser transports the slit 2, a piece 2 h having a non-cutout portion as a fixed end is formed. In this state, if the piece 2h is folded upward at the line segment 2e connecting the terminal ends 2c among the non-cutout portions, the folded portion is bent into a U shape, so that a sharp end surface is not generated and the finger does not hurt.

Laterally S, a distance _{W 0} of the outermost ends of the arcuate slits 2b, a length _{W 1} of the outermost of the individual arcuate slit portion 2b to the end 2c _is, W 1 = 0.15 × _{W 0} The relationship of ˜0.25 × W ₀ is satisfied.
When W ₁ <0.15 × W ₀ , that is, when the extension amount to the inside of the terminal end 2c is small (or does not extend to the inside), when the slit 2 is cut out and the piece 2h is turned upward, the slit 2 The stress in the vertical direction perpendicular to the lateral direction S applied to the cut increases, the film of the packaging bag 100 tears in the vertical direction, and the handle portion 4 is damaged.
On the other hand, when W ₁ > 0.25 × W ₀ , that is, the amount of inward extension of the end 2c is large and the line segment 2e that is a folded portion bent in a U-shape is shortened, the slit 2 is sharply cut out near the end 2c. The end face hits the finger, and the finger becomes painful when carrying.

  In FIG. 3, the slit main portion 2 a is a curved portion that slightly bulges downward, but the slit main portion 2 a may be a straight line parallel to the lateral direction S. If the slit main portion 2a is a straight line, the boundary between the slit main portion 2a and the arc-shaped slit portion 2b is clear, but in the example of FIG. 3, both the slit main portion 2a and the arc-shaped slit portion 2b are arc-shaped. The boundary between the two is not clear. However, since both form the slit 2 continuously, the boundary may not be clear. Further, in the example of FIG. 3, a total of three connection portions 2h, 2g connected to the handle portion 4 without forming a slit at the center portion of the slit main portion 2a and the positions toward the both sides from the center portion, 2g is formed. For this reason, before the purchase, the slit main portion 2a is connected to the handle portion 4 to prevent the slit 2 from being cut out carelessly. And when a purchaser conveys, the slit main part 2a can be cut out like a perforation.

Further, the value of W ₀ is not particularly limited, and may be a length that allows a plurality of fingers to be inserted, but is usually about 50 to 80 mm. The height of the slit 2 in the direction perpendicular to the lateral direction S is not particularly limited as long as the finger can be inserted, but is usually about 10 to 15 mm.
The film of the packaging bag 100 is not particularly limited, but the thickness is determined almost by the weight of the roll product 50 to be packaged, and when the total weight of the roll product 50 to be packaged is 500 g or more, the thickness may be 20 μm or more.

FIG. 4 is a perspective view showing a roll product package 200 in which a plurality of roll products 50 are stored in the packaging bag 100 in the vertical direction. In this example, two roll products 50 are stacked in a vertical and horizontal direction (a total of eight) in the packaging bag 100 with two axes aligned in the vertical direction. Moreover, after the roll product 50 is stored from the lower end opening of the packaging bag 100, the opening end is heat-sealed to form the sealing portion 201.
The four side surfaces 21, 23, 25, and 27 of the packaging bag 100 are unfolded, and the boundaries between the side surfaces 21, 23, 25, and 27 are side fold ridge lines 31, 33, 35, and 37 (37 is not shown). It is prescribed. Further, gable roof-like panel portions 41 and 51 are formed to be inclined from the two opposing side surfaces 21 and 25 to the handle portion 4, respectively.

The panel part 41 has panel part mountain fold ridge lines 43 and 45, and the panel part mountain fold ridge line 45 is parallel to the lateral direction S and forms a boundary with the upper part of the side surface 21. On the other hand, the panel portion fold ridge line 43 is perpendicular to the lateral direction S and constitutes the end of the panel portion 41 on the wife side. Similarly, the panel part 51 has panel part mountain fold ridge lines 53 and 55, and the panel part mountain fold edge line 55 is parallel to the lateral direction S and forms a boundary with the upper part of the side surface 25. On the other hand, the panel portion mountain fold line 53 is perpendicular to the lateral direction S and constitutes the end of the panel portion 51 on the wife side. In addition, the panel part mountain fold ridge lines 43 and 53 are located in the same direction.
The opening perforation 10 has the positions on the panel ridge fold lines 43 and 53 as the start end 10a, and the panel fold ridge lines 45 and 55 are lowered in parallel with the panel fold ridge lines 43 and 53. It crosses down to the side mountain fold ridgelines 31, 33.

FIG. 6 shows the roll product package 200 when viewed from the direction orthogonal to the lateral direction S (the direction of the arrow T in FIG. 4). The inclination angle θ of the panel portion was 20 to 50 degrees, with respect to the length _{R 2} of the panel portion mountain fold edge line 43 and 53, a the beginning 10a of the unsealing perforation 10 is folded panel section mountain ridge 43, 53 and lifting It is preferable to be located at a distance R ₃ of 0.2 × R _{2 to} 0.6 × R ₂ from the lower portion of the hand portion 4.
If it does in this way, since the starting end 10a is located in the center of the panel part mountain fold ridge lines 43 and 53 which protrude in the wife side, or a little closer to the handle part 4 from the center, it is easy to grasp the starting end 10a with a finger. In particular, when raising the handle portion 4 with one hand and raising the panel portion fold ridge lines 43 and 53 while grasping the start end 10a with the fingers of the opposite hand, both hands do not spread too much, so the force to peel off the start end 10a Can be added effectively.

When the position of the starting end 10a is from 0.2 × _{R 2} to grip hand portion 4 close, start 10a is close to a position where the panels unit mountain fold ridge 43 and 53 merge at grip hand unit 4, mountain fold edge line 43, It tends to be difficult to grasp one of 53. When the position of the starting end 10a is below closer than 0.6 × _{R 2,} starting 10a is close to a position where the panel portions mountain fold ridge 43 and 53 merges with side surfaces 21 and 25 respectively, similarly mountain fold edge line 43, It tends to be difficult to grasp one of 53.
In addition, when the inclination angle θ of the panel portion is less than 20 degrees, each panel portion mountain fold line 43, 53 is close to the upper side of the side surface 23 and similarly, it tends to be difficult to grasp one of the mountain fold line 43, 53. . On the other hand, when the inclination angle θ of the panel part exceeds 50 degrees, the roll product package 200 becomes too long in the vertical direction, the packaging becomes loose, and it tends to be difficult to carry.

Returning to FIG. 4, when the starting end 10 a is grasped and torn downward, the packaging bag 100 is opened along the opening perforation 10, but the opening stops at the end 10 b of the opening perforation 10. At this time, the terminal end 10b is formed from the upper end of the side surface fold ridge line 31 to a length of R ₁ × (1.0 to 2.0) (where R ₁ is the diameter of the roll product 50).
For this reason, as shown in FIG. 5, the opening length Rx of the packaging bag 100 is also about R ₁ × (1.0 to 2.0). For example, only the upper roll product 50 is moved in the direction indicated by the arrow B in FIG. , About 45 degrees obliquely upward from the side mountain fold ridgeline 31). Here, when the roll product 50, such as toilet rolls, usually, for a height (axial length) is approximately the same length as the diameter R _1, if the packaging gained roll product 50 two or more stages, The terminal end 10b of the opening perforation 10 is positioned at approximately half the height of the side mountain fold ridge line 31 (when the terminal end 10b has a length of R ₁ × 1.0 from the upper end of the side mountain fold ridge line 31).
Therefore, since the lower roll product 50 that has not been taken out remains packaged, the roll product 50 that remains without being taken out can be stored in a sanitary manner. Moreover, since it is not opened to the bottom part of the packaging bag 100, the lower roll product 50 does not vary in the bag, and the roll product 50 remaining without being taken out can be stably stored.

When the roll product 50 is stacked and packaged, the end 10b of the opening perforation 10 is positioned at least 1/3 the height of the side fold ridge line 31 (the end 10b is the upper end of the side fold ridge 31). To R ₁ × 2.0). Accordingly, in this case as well, at least the lowermost roll product 50 is still packaged, so that the remaining roll product 50 can be stored hygienically.

On the other hand, if the roll product 50, such as kitchen towels, usually, since the height (axial length) is more than twice the diameter R _11, be packaged loaded with rolled products 50 one or more stages, for opening The end 10b of the perforation 10 is positioned at approximately half the height of the side mountain fold ridge line 31 (when the end 10b has a length of R ₁ × 1.0 from the upper end of the side ridge ridge line 31).

  Regardless of the shape of the roll product 50, it is preferable that the terminal end 10 b of the opening perforation 10 is positioned above the height of 1/3 of the side surface mountain fold ridge line 31.

Further, as shown in FIG. 6, the distance R ₄ between the side ridge line and the opening perforation is 0.3 × R _{1 to} 0.5 × R ₁ with respect to the diameter R ₁ of the roll product 50. It is preferable to satisfy. In this case, when the two opening perforations sandwiching one side fold ridge line are opened, the width of the opening becomes 0.6 × R _{1 to} R ₁ , so that exactly one roll product 50 can be taken out. it can.
When R ₄ is less than 0.3 × R _1, it is difficult to take out the roll product 50 from the unsealed portion, and when R ₄ exceeds 0.5 × R ₁ , the unsealed portion becomes too wide to leave the unrolled roll product 50. However, there is a tendency for it to vary within the bag and be difficult to store stably. In order to easily break the perforation 10 for opening, the cut / bond ratio and / or the cut length of the perforation can be adjusted between the panel portion fold ridge line and the side surface fold ridge line. The panel portion mountain ridge line has a cut / bond ratio of 2.5 to 1.0 and a cut length of 3.0 to 0.5 mm, and the side surface mountain fold line has a cut / bond ratio of 2.0 to 1.0. The cut length is desirably 2.0 to 0.5 mm.

It goes without saying that the present invention is not limited to the above-described embodiment, but extends to various modifications and equivalents included in the spirit and scope of the present invention.
For example, the arc-shaped slit portion 2b is not limited to a semicircle, and may be any shape that bulges outward. Further, in FIG. 3, the angle at which the end 2 c faces inward is parallel to the lateral direction S. However, the angle is not limited to this, and has an angle with the lateral direction S unless the end 2 c is perpendicular to the lateral direction S. Also good.
FIG. 7 shows a modification of the arcuate slit 2b. The terminal end 2c of the arc-shaped slit portion 2b has an angle with the lateral direction S and faces upward (in the shape of a square) and toward the inside. FIG. 8 shows another modification of the arcuate slit 2b. The terminal end 2c of the arc-shaped slit portion 2b has an angle with the lateral direction S and faces downward and inward (in the form of an inverted C).

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to these examples of course.

A packaging bag 100 shown in FIG. 1 was prepared using a low-density polyethylene film having a thickness of 27 μm. However, W ₀ was constant at 90 mm, and W _{1 of} the slit (see FIG. 3) was changed as shown in Table 1. Further, a low-density polyethylene film having a thickness of 70 μm was laminated on the handle portion 4 as a reinforcing film 4i.
As Comparative Example 1, two ellipse-shaped slits each having a diameter of 18 × 25 mm into which almost one finger can be inserted are arranged in the lateral direction of the handle portion 4.
As Comparative Example 2, a slit having a length of 90 mm was formed in the handle portion 4 in the U-shaped lateral direction. This slit corresponds to W ₁ = 0 mm.
As Comparative Example 3, the slit was changed to W ₁ = 10 mm.
As Comparative Example 4, the slits of Comparative Example 3 were formed in the opposite directions.
As Comparative Example 5, the slit was changed to W ₁ = 25 mm. In the case of Comparative Example 5, the end 2c of the arcuate slit portion 2b faces slightly upward from the lateral direction.

The following evaluation was performed about the obtained packaging bag.
<Finger pain>
About each package, the slit was cut out and the finger was put in, and the pain of the finger when a load of 1.5 kg was applied for 10 minutes was evaluated according to the following criteria. Evaluation was performed 5 times and the average was adopted. If the evaluation is ○, there is no practical problem.
×: The finger hurts even once out of 5 times, and the trace of the load remains significantly on the fingertip. △: The finger slightly hurts even once out of 5 times, and the trace of the load remains on the fingertip. Does not hurt and leaves a slight trace of the load on the fingertip
The roll product 50 was packaged for 600 g, the handle part 4 other than the slit 2 was held by hand, and the fall, stop, and rise were made one cycle at a drop of 30 cm, and the number of times until the handle part 4 broke was obtained. .

<Cut load>
The slit 2 was cut out, a predetermined jig was hooked on the opening, and a tensile test of the packaging bag 100 was performed with a tensile tester. The tensile strength when the packaging bag 100 was broken was taken as the cutting load, and the elongation of the packaging bag 100 at the time of breaking was measured.

  The obtained results are shown in Table 1.

As is clear from Table 1, in each example, the cutting load of the slit was high, there was no finger pain, and the swing-down strength was excellent.
On the other hand, finger pain occurred in Comparative Example 1 in which two circular holes were formed.
In the case of Comparative Example 2 in which the slit was U-shaped, the end of the slit was parallel in the vertical direction, so that the bag was torn along the vertical direction, and the swing-down strength was inferior.
In the case of Comparative Example 3 in which W ₁ = 10 mm, W ₁ <0.15 × W _{0 was} satisfied, the bag was torn in the longitudinal direction near the end of the slit, and the swing-down strength was inferior. This is probably because stress is concentrated in the vertical direction near the end because there is little burr inside the end of the slit.
In the case of Comparative Example 4 in which the slit was turned upside down, a sharp end surface was generated on the upper side from which the slit was cut out, and finger pain was generated.
In the case of Comparative Example 5 in which W ₁ = 25 mm, W ₁ > 0.25 × W ₀ , the line segment 2e that becomes the folded portion of the slit is shortened, and the sharp end surface cut out of the slit 2 near the end 2c hits the finger. Some finger pain occurred.

2 slit 2a slit main part 2b arc-shaped slit 2c end of arc-shaped slit 4 handle part 4a to 4h seal line 6 main body 8 gusset 10 opening perforation 10a opening perforation 10b opening perforation 21 -27 Side surface 31-37 Side surface fold ridge line 41, 51 Panel portion 43, 53 Panel portion fold ridge line perpendicular to the horizontal direction 50 Roll product 100 Packaging bag 200 Roll product package S (Connect left and right gussets) Horizontal direction W ₀ arc shape Interval between outermost sides of slit part W ₁ Length from outermost side to end of arc-shaped slit part R ₁ Diameter of roll product R ₂ Length of panel fold ridge line perpendicular to lateral direction R ₃ Panel ridge ridge line Distance from the bottom of the handle part above R ₄ Distance between the side fold ridgeline and the perforation for opening

Claims (5)

In a tubular film packaging body having a main body portion for storing a plurality of roll products such as toilet paper and a handle portion on the upper end side of the main body portion, the handle portions are symmetrical with respect to the left and right sides of the tubular film. It is a flat shape that is folded and fixed in a flat shape, and a slit for simultaneous fingering that allows a plurality of fingers to be inserted through the handle is provided across the folding edge of the left and right gussets. Apply the enclosing seal line to the handle,
The slit is a slit main portion extending along a lateral direction connecting the left and right gussets, and ends from both ends of the slit main portion toward the upper end of the handle portion and extends inward while projecting outward. Continuing with the arc-shaped slit part,
In the lateral direction, the distance W ₀ between the outermost sides of the arc-shaped slit part and the length W ₁ from the outermost side of the arc-shaped slit part to the end are W ₁ = 0.15 × W _{0 to} 0. A packaging bag containing a plurality of roll products satisfying the relationship of 25 × W ₀ . An opening perforation is provided on the side surface and the other side surface adjacent to the side surface so as to sandwich a side fold ridge line forming both side ends of any one side surface among the four side surfaces constituting the packaging bag,
The opening perforation extends in parallel and downward along the side surface fold ridge line from a predetermined position below the handle portion, and R ₁ × (1.0-2. The packaging bag according to claim 1, which terminates in a length of 0) (where R ₁ is the diameter of the roll product). When the plurality of roll products are stored in the packaging bag and viewed from the direction orthogonal to the lateral direction, the inclination angle of the gable roof-shaped panel portion from the side surface constituting the packaging bag toward the handle portion is 20-50 degrees,
0 from the bottom of the relative transverse direction of a vertical panel section mountain fold ridge length R _2, wherein an opening perforation is the panel mountain fold on the edge line and the grip hand portion of the ridge line of the panel portion. The packaging bag according to claim _{2, wherein} a distance R ₃ of 2 × R _{2 to} 0.6 × R ₂ is a starting end. The distance R ₄ between the side fold ridge line and the opening perforation with respect to the diameter R _{1 of the} roll product satisfies a relationship of 0.3 × R _{1 to} 0.5 × R _1. A packaging bag according to any of the above.   The roll product package which accommodates the said several roll product in the packaging bag in any one of Claims 1-4.

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