JP2566444Y2 - Packaging bag - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a packaging bag made of a composite packaging material having a laminated structure of two or more layers by appropriately combining a synthetic resin film, a coating layer, aluminum foil, paper and other materials. The present invention relates to a packaging bag formed along an opening line assuming a deformed perforated cut line.

[0002]

2. Description of the Related Art Packaging bags, which are frequently used as small bags for dispensing various kinds of fluid or powdery foods or various chemicals, are generally composed of a synthetic resin film as a base material. A bag is constituted by the packaging material.

[0003] Composite packaging materials used for these packaging bags include a laminate of a stretched film of nylon or polyester and a sealant layer of polyethylene or the like (stretched film / sealant layer) or aluminum. In addition to a laminate of a foil and a sealant layer (stretched film / aluminum foil / sealant layer), a flexible packaging bag for liquids that require more strength consists of a stretched film / aluminum foil / stretched film / sealant layer A laminate, that is, a laminate in which an aluminum foil is sandwiched between stretched films, is often used. Thus, in most cases, a stretched (biaxially stretched) film is used.

[0004] In the opening operation of this kind of packaging bag, the desired property is that it can be easily opened without using scissors or blades [1], and in that case, it is easy to start opening [2]. , And tearing direction (opening direction) when opening
Is stable and can be easily opened in an open state for easy removal without spilling the contents along the assumed opening line [3].

[0005] However, the above-mentioned composite material has a problem that, while having high strength, it is difficult to tear the bag at the time of opening, and it is difficult to tear open the bag along an assumed opening line.

[0006] For this reason, it has been proposed to make a tear-opening operation easier, for example, by making a notch in a sealing portion at a side edge of the bag or making a perforated cut line in a film which is a base material of the composite material. ing.

However, in the stretched film used for the composite packaging material, the stretching direction, that is, the arrangement direction of the molecules by stretching is generally not linear but slightly curved. Even after forming this into a composite sheet as a packaging material to form a packaging bag, the above-mentioned directionality remains as it is, which has been an obstacle in determining the tearing direction at the time of opening the bag when opening it. .

For example, as shown in FIG. 18, a notch 55 'is provided in the sealing portion 5' at the side edge of the bag, although opening of the bag is relatively easy to start. Due to the directionality of the stretched film, the tearing direction is largely deviated and cannot be opened at the assumed opening line. In particular, when the orientation of the stretched film is different between the front and back of the bag A ', the tearing direction of the front and back may be greatly deviated from each other depending on the opening operation direction.

Also, in the bag A 'in which the perforated cut line 10' for opening aid is formed as shown in FIG. 19, the cut line 10 'is formed as a simple straight cut line 1 as shown in FIG.
Since it is only formed in a perforated shape of 1 ', if it is a straight line and a short distance of several cm, it can be torn and opened along the cut line 10', but the directionality and the force of the film described above can be reduced. Depending on the degree of engagement, the direction of the tear a 'from the cut end 11c' often deviates from the cut line 10 '. The probability of occurrence of this deviation is higher as the distance to be tear-opened becomes longer, and varies depending on the film material and the like. It was difficult to tear open along the opening line.

As a method of opening the bag, there is a method in which a thread or a tape is incorporated along the opening line. However, in this case, the cost of the bag itself is increased because other special materials are incorporated. However, it cannot be used for existing packaging machines, and there is a problem in versatility.

The present invention has been made in view of the above, and satisfies all of [1], [2] and [3] which are desired in the above-mentioned opening operation as means for opening the packaging bag as described above. An object of the present invention is to provide a packaging bag that can be reliably opened along a predetermined opening line.

[0012]

The present invention, which solves the above-mentioned problems, is based on a composite packaging material having a laminated structure of two or more layers by appropriately combining a film or a coating layer of synthetic resin, aluminum foil, paper or other materials. The composite packaging material comprises a deformed perforated cut line formed on at least one other layer of the composite packing material along an assumed opening line. Has a two-dimensional spread so that a large number of cuts can correct the deviation in the tearing direction from one cut end at the time of opening in the next cut, and at least one cut end has a width within the spread width. And a plurality of rows of the cut lines are formed along the opening line at a slight interval.

The one line of the perforated line of the deformed perforations is a substantially Y-shaped notch which is bifurcated toward one direction of the opening line, and a notch portion corresponding to a Y-shaped lower portion. Are preferably formed intermittently at required intervals so as to be substantially parallel to one another.

As the above-mentioned cut line, a cut line which is inclined in an alternate direction so as to extend in one direction of the opening line in the opening direction from each end of the cut line and intersect with the extension line so that the next cut line is present. They may be formed alternately.

Further, two pairs of cuts, which are inclined so as to form a substantially C-shape toward one direction of the opening line, are formed in an intermittent manner at a required interval, and are used as the above-described one-line cut lines. It may be.

[0016] Furthermore, the above-mentioned one formed in two rows and one set with the substantially arcuate cuts facing each other across the opening line center with respect to the arcuate cuts,
It can be the line of the column.

Instead of the arc-shaped cuts, cuts bent in a substantially U-shape are arranged so that the inner sides of the U-shape face each other with the opening line center interposed therebetween, and a set of two rows is intermittently intermittent. It can be formed in a shape.

[0018]

In the above-described packaging bag of the present invention, when tearing open along the opening line on the front and back of the bag, a strong force is not required to start the tearing. By correcting the distortion in the tearing direction at the next cut, the tear can be reliably opened along a predetermined opening line without failure such as deviation.

For example, the one line of the perforated line of the deformed perforated line is substantially Y-shaped with one end forming a bifurcated shape.
In the case where the cut in the shape of a letter is formed in an intermittent manner, if the tear is made in the direction of the lower part of the Y-shape, the cut in the Y
Even if the tear from the end of the cut corresponding to the lower end of the character is distorted in the oblique direction due to the degree of force applied and the directionality of the material film, the bifurcation of the next cut is waiting with the expansion of the required angle range A certain degree of distortion can reliably reach the next cut. In this manner, tearing and opening can be reliably performed along the planned opening line without passing through each cut.

Further, in the case where the cut line is formed by alternately forming cut lines that are inclined in alternate directions, as in claim 3, or in the case where the cut line is inclined so as to form a substantially C-shape. Even in the case where two pairs of cuts are formed, if the tear is opened from the side where the cuts are widened, the following width is required in the form of crossing over the extension in the opening direction of each cut with the required width. The presence of the cuts ensures that tears from one cut end can reach the next cut and tear open along the intended opening line without skewing.

Further, the cuts having a substantially arc shape as defined in claim 5 or the cuts bent in a substantially rectangular shape as defined in claim 6 are formed intermittently in a set of two rows so as to face each other. Even in the case where the tear line is torn from one end side of the opening line, the tear from the cut end of one cut line can surely reach one cut of the other cut line,
Similar to the above, tear-opening can be performed without deviation.

Particularly, in the case of the present invention, since the perforated cut line is formed in a plurality of rows along the opening line, even if the tearing direction may deviate from one cut line, it may be adjacent. The cut line can be corrected, and the cut line itself can be made relatively fine. Further, even if the notch itself is fine and the width of one line of the cut line is small, the width of the entire area where the plurality of lines of the cut line is formed becomes large. If the other cut line is overlapped, even if the position of the cut line on the front and back of the bag slightly shifts due to errors in bag making, it will not be deviated at the same time on either side of the multiple lines, and it will be well-formed. It can be tear open.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

FIGS. 1 to 2 and FIGS. 3 and 4 show an embodiment in a packaging bag A made of a composite packaging material 1 having a three-layer structure using a synthetic resin film as a base material. The packaging bag A is sealed at the side edge while the contents are stored. In the case of the figure, a bag in the form of a three-side seal is shown.

The above-mentioned composite packaging material 1 is, for example, a stretched film of a stretched nylon resin or polyester resin, in particular, a stretched film of a transparent nylon resin having been subjected to printing, as a surface material 2. A required printing is performed on one side as necessary, and an aluminum foil, which is an intermediate material 3 serving as a gas barrier layer, is laminated thereon, and a sealant layer 4 is further provided on the aluminum foil. Reference numeral 5 denotes a sealing portion at the side edge of the bag.

The structure of the composite packaging material 1 basically has a three-layer structure of the surface material, the intermediate material and the sealant layer, or the laminated structure of the surface material and the sealant layer. When a stretched film is used as the surface material 2 and an aluminum foil or a laminate of the stretched film and the aluminum foil is used as the intermediate material 3 and further printed, the following laminated structure can be exemplified.

(1) Stretched film / printing / sealant layer (2) Stretched film / printing / aluminum foil / sealant layer (3) Stretched film / printing / aluminum foil / stretched film /
Sealant layer As the surface layer material 2 in the above, in addition to the stretched film,
Other synthetic resin films can be used and are not particularly limited to stretched films. Further, there may be a paper material such as rayon paper or glassine paper, or a sealant material laminated on the outside of the film. In some cases, a combination of these is used as the surface material.

The intermediate material 3 serving as a gas barrier layer may be a synthetic resin film, in particular, a synthetic resin film having gas barrier properties or a coating layer, in addition to the above-mentioned aluminum foil. Vinylidene resin or ethylene vinyl alcohol (EV
OH) resin can be used. In some cases, it is made of a laminate of an aluminum foil and a synthetic resin film.

The sealant layer 4 is provided with a sealant layer 4 made of an olefin-based resin such as polyethylene or polypropylene, or a resin film or coating layer having good heat adhesion, or a combination thereof, by a laminating means or a coating means. .

In the composite packaging material 1 having the three-layer structure including the surface material 2, the intermediate material 3, and the sealant layer 4, at least one of the other layers is excluded, for example, as shown in FIGS. 2, a plurality of rows of deformed perforated cut lines 10 are formed on the outer layer material 2 on the outer side of the bag along opening lines assumed in advance on the front and back of the bag, respectively. Are formed linearly from one edge to the other edge.

In the case of the composite packaging material 1 having the three-layer structure described above, the modified perforated cut line 10 can be formed only on the intermediate material 3 as shown in FIG. 3 or as shown in FIG. It can be formed on the sealant layer 4 alone, or can be formed on both the intermediate material 3 and the surface layer material 2 or both on the intermediate material 3 and the sealant layer 4 (not shown). In the case where the score line 10 is formed in the surface material 2 or the sealant layer 4 as described above, if the intermediate material 3 is an aluminum foil or a film having excellent gas barrier properties, it is possible to ensure excellent gas barrier properties as well as sealing properties. . Also, when the score line 10 is formed in the intermediate material 3 having excellent gas barrier properties, the score line 10 is linear and has a small area.
Most of the composite packaging material 1 is intact and still has considerable gas barrier properties.

In the case of a composite packaging material having a two-layer structure of a surface material and a sealant layer, the cut line 10 can be formed in any one of the layers. In this case, since no score line is formed in any one of the layers, the sealing property is sufficiently maintained. However, if the surface material is a stretched film and the score line 10 is provided in the sealant layer, a notch may be provided at the tearing start end as needed, for example.

The perforated cut line 10 may be cut or formed at a required portion of the material to be a layer on which the cut line is formed before the material of each layer is laminated as the composite packaging material 1. After lamination as a packaging material, it can be formed in consideration of the depth of cut in the thickness direction.

However, the above-mentioned modified perforated cut line 10 has a two-dimensional spread so that a large number of cuts can correct the deviation in the tearing direction from one cut end at the time of opening at the next cut. And at least one notch end is formed in an intermittent manner so as to terminate inside the widening width. Particularly in the case of the present invention, as shown in FIGS.
A plurality of rows of modified perforated cut lines 10 as described above are formed at some intervals.

The form of the score line 10 will be specifically described.

In the embodiment of FIG. 1, as shown in FIG.
A substantially Y-shaped notch 1 which is bifurcated toward the direction
1 are formed intermittently at required intervals so that the cut portions 11a corresponding to the lower part of the Y-shape are arranged substantially in a line. 11b shows a forked part.

In this embodiment, if the tear 11 is torn from the bifurcated side of the cut 11 toward the lower part of the Y-shape, the cut end 11 corresponding to the lower end of the Y-shape of one cut 11 is formed.
Even if the tear a from c is distorted in an oblique direction due to the degree of force or the directionality of the material film, the forked portion 11b of the next cut 11 is waiting with the required angle range expanding, and the distorted tear a Can reliably reach the next cut 11. In this manner, tearing can be reliably performed along each of the cut lines 11 along the planned opening line without causing deviation.

In the above, the cut end 11 of one cut 11
In the range of the required angle (α) in the opening direction centered at c (for example, a range of 90 ° or more), the forked portion 11b of the next cut 11
It is desirable to form them so as to exist.

The above substantially Y-shaped cut 11 is shown in FIG.
The bifurcated portion 11b may be formed in a substantially semicircular or arcuate shape as in the above, and in this case, the same operation as described above can be achieved.

In the sealed bag A of the above embodiment, the tear-promoting score line 10 formed on the film 1 is the other layer where the score line is not formed, that is, the intermediate material 3 in the case of FIG.
The cut 11 is closed by the sealant layer 4 and has sufficient sealing properties and gas barrier properties.

In the case of the embodiment shown in FIG. 7, the modified perforation-shaped cut line 10 extends in the opening direction from each cut end 12c near the center of one cut 12 toward one direction of the opening line. A substantially straight cut 12 inclined in a staggered direction is formed alternately so as to intersect with the next cut 12.

Also in the case of this embodiment, when tearing open from the open side of the inclined cut in the other direction, each cut 1
Even if the direction of the tear a from the second cut end 12c is slightly deviated,
Since the next cut 12 is waiting on the extension of the cut 12 in a direction crossing the cut 12, the tear a
Can be reliably reached and can be torn open along the intended opening line without deviation. For example, if the angle is within the range of the angle (β), the deviation can be dealt with.

In the embodiment shown in FIG.
As a modified example of the above, a case is shown in which two cuts 13 forming a pair inclined in a substantially C-shape toward one direction of the opening line are formed intermittently at a required interval. Also in this embodiment, if the tear 13 is torn in the other direction from the widened side of the cut 13, the next cut 13 exists so as to cross the extension of one cut 13. Even if the direction of the tear a from one cut end 13c is slightly shifted, the next cut 13 can be reliably reached, and the tear can be opened along a predetermined opening line.

In the embodiment shown in FIG.
The cuts 14 having a substantially circular arc shape are formed in two rows and one set so as to face each other so that the cut ends 14c and 14c face each other with the opening line center therebetween. . As a modified example of the arc-shaped notch 14, as shown in FIG.
14 can be formed in staggered rows each across two cuts 14 in the other row.

In this embodiment as well, even if the direction of the tear a from one cut end 14c due to the tear-opening operation is slightly deviated, the cut 14 in the other row can be reliably reached, thus preventing the deviation. Can be tear open.

Instead of the arc-shaped cuts 14, the cuts 15 bent in a substantially rectangular shape as shown in FIGS.
May be formed intermittently in two rows and one set so that the inside of the U-shape faces each other across the opening line center. In this case, the same effect as described above is achieved.

The cuts 11, 12, 13, 14, and 15 in the cut line 10 in each of the above-described embodiments are usually such that the length (l) and the width (w) in the opening direction are 0.5 to 3 mm.
It is preferable to set it in the range. The interval between cuts (s)
Also, 0.5 to 3 mm is preferable. That is, if this interval is 3 mm or more, the angle range in which deviation can be prevented becomes small, which is not preferable. The angle range where deflection can be prevented is 90
In practice, it is preferable to set the angle to be equal to or more than 0 °.

The score line 10 in each of the above-described embodiments is not limited to the one that traverses the bag in the horizontal direction. Depending on the assumed opening line, the score line 10 may be formed in the vertical or diagonal direction, or the score lines in these directions may be combined. Or a curved shape or another curved shape. In any of these cut lines 10, a plurality of cut lines are formed along at least one of the opening lines on the front and back of the bag.

The present invention can be applied to packaging bags A of various forms other than those described above, which are made of composite packaging materials, as illustrated in FIGS. 13 to 16, the cut line 10 is shown as one line, but in the case of the present invention, the cut line 10 is formed in a plurality of lines in the same manner as described above.

As shown in FIG. 13, a part of the seal portion 5 at the side edge, for example, the seal portion 5 at the upper edge side is used as a deformable seal, and a non-seal portion is left at a portion near the side edge, and the contents are removed. If the cutout line 10 is formed so as to traverse the outlet 6 when the outlet 6 is continuous with the receiving portion and is sealed from the outside, the outlet can be easily and reliably formed. Can be opened.

As shown in FIG. 14, a bag with a four-sided seal configuration can also be implemented by providing a modified perforated cut line 10 in the same manner as described above. Further, in a pillow bag as shown in FIG. 15, a cut line 10 similar to the above can be formed in the vertical direction or the horizontal direction. A gusseted bag can also be implemented by providing a score line 10 on the front and back of the bag in the same manner as described above.

Further, as shown in FIG. 16, even in a bag provided with a resealing chuck 9 formed by concave and convex ridges fitted to each other, a cut line 10 similar to the above is formed along the opening line. it can. In this case, as compared with the case where the notch is provided in the seal portion, the tear can be reliably opened along the predetermined opening line without deviation.

In a three-side sealed bag in which the front and back bodies are bent at one side edge and the other side edge is sealed, a score line 10 is formed by cuts 11, 12, and 13 having a direction in a tear-opening direction. In the case of forming the bag material, a score line 10 may be formed in the bag material in a direction opposite to the center where the folded edge of the bag is formed.
That is, when a wide film material is cut into a required width and used for a bag, a cut line in the opposite direction may be formed at the center of the cut width.

In the case of a pillow bag, it is sufficient to form a cut line in the opposite direction from the fold part, and in the case of a gusset-formed bag, the folded part of the gusset corresponds to the front and back of the bag, respectively. The cut line may be formed in such a direction as to be set.

Of course, in the case of the cuts 14 and 15 of the pattern that can be torn and opened in both directions, it is not necessary to consider the direction as described above.

In any of the embodiments, the above-described modified perforated cut lines 10 are formed in a plurality of rows (for example, two rows) and are formed in parallel with a slight space therebetween, so that the bag-making process is improved. It is possible to cope with the deviation of the score line between the front and back of the bag due to an error, and the front and back can be reliably opened simultaneously. For example, according to the results of the opening test, tearing could be performed on the front and back up to a displacement of about 1.5 mm, so that two cut lines 10 were formed on each of the front and back at intervals of 2 mm. Since it is 1 mm at the maximum, it can be easily torn open.

Further, as shown in FIG.
Zeros can be formed in two rows at required intervals, and provided so that a part of the bag can be torn open in a ring tape shape. In this case, a tear 10 such as a perforation is formed on the opening start end portion 7 between the two lines of the score lines 10 or a notch 8 is formed to facilitate the tearing operation.

The packaging bag A provided with the deformed perforated score line 10 can be suitably used for various uses in addition to various kinds of fluid or powdered foods. Some examples are shown below.

(1) At present, as a bag for packaging medicines, cellophane is often used as a surface substrate, and a sealant layer is laminated on the cellophane, or an aluminum foil and a sealant layer are laminated. This bag is easy to tear, but the cut edge is easily distorted depending on the strength of the force,
It is not the best opening for taking medication. In the manufacturing process, cellophane is easily affected by the environment, and is difficult to handle due to cutting or wrinkling.

On the other hand, a bag of a composite packaging material having a two-layer structure of a surface material made of a stretched polyester resin film and a sealant layer, or a three-layer structure of the surface material and an aluminum foil (intermediate material) and a sealant layer By forming a cut line having the above-mentioned directivity in one layer of the composite packaging material, an optimum opening can be easily obtained, and compared with a conventional cellophane bag. Bag making becomes easy.

(2) In the packaging bag for sliced ham,
At present, many packages are opened using the easy peel property of the packaging material, that is, the cohesive failure of the sealing material. However, it is difficult to control the force required to cause the cohesive failure, and if the sealing temperature is not appropriate, the sealing strength becomes too strong and the finger may not be able to be peeled off properly.

On the other hand, by providing a deformed perforated cut line capable of correcting the tearing direction of the present invention in the packaging bag, the bag can be opened smoothly without deviation.

(3) In a bag provided with a resealing zipper, there is a bag provided with a notch in a seal portion or a bag provided with an adhesive tape along an opening line, but in the former case, the tearing direction is deviated. In the latter case, there are problems such as yellowing of the adhesive and dirt on the end face of the adhesive tape.

On the other hand, by using a bag provided with a perforated cut line along the opening line, the bag can be reliably torn and opened without the problem described above.

[0065]

As described above, according to the present invention, a special deformed perforated cut line that can correct the deviation of the tearing direction from one cut end in the next cut line is provided, so that the opening line can be formed. When opening along the tear, it does not require a strong force to start tearing, just by applying a normal tearing operation, can prevent the deviation in the tearing direction due to the strength of the force and the direction of the film, until the end Tearing and opening can be accurately performed without deviation along a predetermined predetermined opening line.

In particular, by forming a plurality of rows of the deformed perforated cut lines along the opening line at a slight interval, the effect of preventing deviation in the tearing direction even with a cut line formed by fine cuts is great. Opening is further facilitated, and the area in which a plurality of rows of cut lines are formed expands even with a fine cut, and if the other cut line is aligned with the above area during bag making, any of the cuts in the plurality of rows can be cut. It can be tear open unambiguously at the same time without obstruction. Therefore, anyone can easily and accurately perform the opening operation, can open the contents in a state suitable for taking out the contents, and there is no possibility of spilling the contents at the time of opening.

Moreover, since the deformed perforated cut lines are formed in other layers except at least one layer in the composite packaging material, the gas barrier property and the sealing property in the packaged state may be impaired. Absent.

Further, the present invention can be used as it is in the packaging equipment currently used. That is, it can be easily used without the need for modification of packaging machines and bag making machines, new equipment, and auxiliary materials such as yarns and tapes. In addition, bag forms that are currently in active use, ie, three-sided and four-sided seals,
Since it can be applied to all kinds of pillow bags, gusset bags, etc., it can be widely used not only for packaging of foods and pharmaceuticals, but also for packaging of miscellaneous goods and industrial products.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention.

FIG. 2 is a partially enlarged cross-sectional view taken along the line II-II in FIG.

FIG. 3 is a partially enlarged cross-sectional view when a score line is formed in an intermediate material.

FIG. 4 is a partially enlarged cross-sectional view when a score line is formed in a sealant layer.

FIG. 5 is an enlarged plan view showing a part of a score line.

FIG. 6 is a plan view showing a modified example of the cut line in the preceding figure.

FIG. 7 is a partial plan view [a] and an enlarged view [b] showing an example of a score line of another embodiment.

FIG. 8 is a partial plan view [a] and an enlarged view [b] showing an example of a score line in another mode.

FIG. 9 is a partial plan view [a] and an enlarged view [b] showing an example of a score line of another embodiment.

FIG. 10 is a partial plan view [a] and an enlarged view [b] showing an example of a score line of another embodiment.

FIG. 11 is a partially enlarged plan view showing a modification of the embodiment in FIG. 9;

FIG. 12 is a partially enlarged plan view showing a modification of the embodiment in FIG. 10;

FIG. 13 is a partial front view showing another embodiment.

FIG. 14 is a front view showing an embodiment of a bag of a four-sided seal type.

FIG. 15 is a front view showing an embodiment of a pillow bag.

FIG. 16 is a front view showing an embodiment of a bag provided with a resealing chuck.

FIG. 17 is a partial front view showing still another embodiment.

FIG. 18 is a front view of a bag having a conventional notch.

FIG. 19 is a front view of a conventional bag formed with perforated cut lines.

FIG. 20 is an enlarged view of a perforated cut line portion of the bag using a conventional perforated cut line.

[Explanation of symbols]

 A packaging bag 1 composite packaging material 2 surface material 3 intermediate material 4 sealand layer 10 cut line 11 cut 12 cut 13 cut 14 cut 15 cut a tear

Claims (6)

(57) [Scope of request for utility model registration] 1. A packaging bag comprising a composite packaging material having a laminated structure of two or more layers, wherein the composite packaging material has a deformed perforated score line except for at least one layer. But,
It is formed along the assumed opening line, and this cut line has a two-dimensional spread so that many cuts can correct the deviation in the tearing direction from one cut end at the time of opening with the next cut. cut ends of lifting Chikatsu least one end side before
It is formed intermittently so that it terminates inside the spread width .
Along the opening line with a slight gap between the score lines.
A packaging bag characterized by being formed in a plurality of rows . 2. A score line variations perforated line of one column, the cuts in a substantially Y-shape which is flared bifurcated toward the one direction of the opening line, cuts portions one corresponding to the Y-shaped lower The packaging bag according to claim 1, wherein the packaging bag is formed in an intermittent manner at required intervals so as to be arranged on a line. 3. A score line variations perforated line of one row, by the intersection therewith an extension from the cut end toward the one direction of the tear line inclined in alternate directions as exists following cuts The packaging bag according to claim 1, wherein the packaging bag is formed by alternately forming cuts. 4. A score line variations perforated line of one column, inclined so as to form a substantially C-shape toward the one direction of the tear line 2
Or those formed intermittently shaped main space where the cuts forming the One pair
Packaging bag according to Ranaru claim 1. 5. A score line variations perforated line of one column, the cuts having a substantially arc shape, the circular arc inwardly as aligning direction across the opening sealing line center two rows a set of intermittent shaped Formation
Packaging bag according to claim 1 consisting of the thing. 6. A score line variations perforated line of one column, a cut that is bent to the shape of the substantially L, two rows so as to match the direction across the opening sealing line center the shaped inner該Ku 1 Intermittent group
The packaging bag according to claim 1, wherein the packaging bag is formed in a shape .