JP5590845B2 - Packaging bag - Google Patents

Description

  The present invention relates to a packaging bag that can be easily opened even by a weak consumer and is not easily broken when carried, and is suitable for packaging sanitary goods such as toilet paper and kitchen paper.

  Conventionally, when selling sanitary products such as roll-shaped toilet paper, it is common to store a plurality of items to be stored such as toilet paper in a packaging bag, and form a packaging bag for storing As a material, a plastic package film that is soft and has high strength is generally used.

  And as a storage form of toilet paper in a packaging bag having a grip handle at the top, for example, four toilets are arranged in a row and stacked in three stages to store a total of 12 toilet papers. In other cases, there are cases where two toilets are arranged in a row and stacked in three tiers, and a total of six toilet papers are stored. It was to be offered for sale.

  In other words, since a plastic package film having a high strength is used as a packaging material so as not to be inadvertently broken before and after sales, it may be difficult to open the packaging bag when using toilet paper. It comes to occur. For this reason, the appearance of the packaging bag after opening is generally not good as a result that the packaging bag must be forcibly broken and opened.

  On the other hand, a perforation is provided around the handle and the packaging bag is opened from the perforation part, or a perforation is provided at the bottom of the packaging bag and the part is opened from this part. A packaging bag in which improvement measures are taken is known.

JP 2009-035323 JP 2008-239224 JP 2006-347581 Japanese Patent Laid-Open No. 2004-269009 JP 2004-269010 JP

  However, when the perforation is provided in the packaging bag, there is a defect that force is applied when carrying the toilet paper in a state in which the toilet paper is stored in the packaging bag, and the perforation breaks carelessly. On the other hand, although it may be possible to narrow the perforation cut width to prevent inadvertent breakage, in this case it becomes difficult for consumers with weak power such as elderly people to open the contents. It comes to have the disadvantage that it becomes difficult to take out the toilet paper.

  As described above, the main object of the present invention is to provide a packaging bag that can be easily opened even by a weak consumer and is not easily broken when carried.

The packaging bag according to claim 1 is a packaging bag that stores a plurality of objects to be stored formed in a roll shape so that the end surfaces thereof face in the vertical direction and the outer peripheral surfaces are in contact with each other.
A first perforation is formed in the top surface area covering the upper end surface of the storage object,
A second perforation is formed in a portion between the objects to be in contact with each other in the side surface region covering the outer periphery of the object to be stored,
The first perforation is stronger than the second perforation.

The operation of the packaging bag according to claim 1 will be described below.
According to the packaging bag of the present invention, the objects to be stored formed in a roll shape are arranged in such a manner that a plurality of objects to be stored formed in a roll shape are arranged so that the end surfaces thereof are directed vertically and the outer peripheral surfaces are in contact with each other. Stored items are stored. A first perforation is formed in the top surface area covering the upper end surface of the objects to be stored, and a portion between the objects to be stored in the side surface area covering the outer periphery of the objects to be stored is contacted between the outer peripheral surfaces. Two perforations are formed. However, at this time, the first perforation is stronger than the second perforation.

  Therefore, according to the packaging bag of the present invention, when the packaging bag is lifted together with the object to be stored from the handle portion that normally exists on the upper surface of the packaging bag, the first perforation is formed in the top surface area that does not contact the object to be stored. Is arranged. Similarly, even when the packaging bag is lifted, the second perforation is arranged in the portion between the objects to be in contact with the outer peripheral surfaces in the side region that is difficult to apply tension.

  And since the intensity | strength of the 1st perforation of a top | upper surface area | region is made stronger than the intensity | strength of the 2nd perforation of a side area | region, when carrying the packaging bag in the state in which the thing to be stored was carried, these perforations | Therefore, the packaging bag will not be broken carelessly. That is, in the perforation existing in the top surface area and the perforation existing in the side surface area, the perforation on the top surface area side is more likely to break, but the strength of the first perforation in the top surface area is as described above. By making the strength higher than the strength of the second perforation in the side region, the packaging bag is more reliably prevented from being inadvertently broken from the first perforation.

  On the other hand, when opening the packaging bag according to the present claim, the first perforation and the second perforation need to be cut in width because the first perforation and the second perforation are appropriately combined. Since it is not necessary to make the size smaller than this, even a weak consumer such as an elderly consumer can easily open the packaging bag from the perforation, and it becomes easy to take out the roll-shaped contents to be removed from the packaging bag.

The operation of the packaging bag according to claim 2 will be described below.
The packaging bag according to the present invention has the same effect as that of the first invention. However, the present invention has a configuration in which the first perforation and the second perforation are connected to each other.

  That is, according to the present claim, since the first perforation and the second perforation are connected, the perforation can be performed from either the top surface region or the side surface region when opening the packaging bag. The top surface area and the side surface area can be continuously opened by opening along.

The operation of the packaging bag according to claim 3 will be described below.
The packaging bag according to the present invention has the same effects as the inventions of the first and second aspects. However, the present invention has a configuration in which the second perforation is formed so as to extend linearly along the axial direction of the object to be stored.

  That is, according to this claim, it is necessary to make the perforation openable by a consumer with weak force, but it extends linearly along the axial direction of the object to be stored formed in a roll shape. In addition, a second perforation is formed. From this, for example, the necessary perforation length can be easily ensured as compared with the case where the perforation is formed in a direction crossing the axial direction of the object to be stored.

The operation of the packaging bag according to claim 4 will be described below.
The packaging bag according to the present invention has the same effects as the inventions of the first to third aspects. However, in this claim, the tie cut ratio of the first perforation is a value in the range of 1: 3 to 1:10, and the tie cut ratio of the second perforation is a value in the range of 1: 4 to 1:15. It has the structure that it was said.

  That is, according to the present invention, when the tie cut ratio of the first perforation is smaller than 1: 3, or when the tie cut ratio of the second perforation is smaller than 1: 4, the perforation is broken. It becomes difficult to do. On the other hand, when the tie-cut ratio of the first perforation is larger than 1:10 or when the tie-cut ratio of the second perforation is larger than 1:15, the perforation portion is used when carrying the packaging bag. Therefore, the packaging bag is easily broken. For this reason, the range of the tie cut ratio of the first perforation and the second perforation is set as the above range of values.

  As described above, according to the packaging bag of the present invention, it is possible to produce an excellent effect that even a consumer with weak power can easily open the bag and is not easily broken when carried.

It is a perspective view which shows one Embodiment of the packaging bag which concerns on this invention. It is a front view which shows one Embodiment of the packaging bag which concerns on this invention. It is a top view which shows one Embodiment of the packaging bag which concerns on this invention. It is an expansion enlarged view showing expanding the principal part of the 1st perforation and the 2nd perforation applied to one embodiment of the packaging bag concerning the present invention.

Hereinafter, an embodiment of a packaging bag according to the present invention is shown in FIG. 1 to FIG. 4, and the present embodiment will be described in detail with reference to these drawings.
The packaging bag 10 according to the present embodiment is composed of a packaging material in which a plastic film or sheet such as polyethylene, which is a stretched film having a thickness of 0.03 mm, is formed into a cylindrical shape. As shown in FIG. 1, this cylindrical packaging bag 10 is a gusset bag in which both side end surfaces 16, 18 are folded inward, and is completed by fusing for each length of the bag. . That is, the packaging material forming the packaging bag 10 has a front surface 12, a back surface 14, and side end surfaces 16 and 18, and creases L that are folded inward are formed on both side end surfaces 16 and 18, respectively.

  When manufacturing the packaging bag 10 in which the items to be stored are stored, when the lower side of the packaging material is welded, the side end surfaces 16 and 18 are stacked together with the lower ends of the front surface 12 and the back surface 14 and one end is sealed, A bottom portion 22 is formed. Further, at the time of welding of the upper side of the packaging material, after storing the toilet paper 30 as the storage object, the side end surfaces 16 and 18 are laminated together with the upper ends of the front surface 12 and the back surface 14 and the handle portion 24 having a required width positioned on the upper side. This handle portion 24 is sealed as a result of the formation. The handle portion 24 is formed with two hand holes 26 for punching fingers.

  On the other hand, between the bottom part 22 and the handle part 24, a main body part 10A of the packaging bag 10 having a cylindrical space inside for storing the toilet paper 30 is located, and constitutes the main body part 10A. The front surface 12, the back surface 14, and the side end surfaces 16, 18 form a side region 20 of the packaging bag 10 that covers the outer peripheral surface 30A of the toilet paper 30.

In the present embodiment, as shown in FIGS. 1 to 3, the toilet paper 30 formed in the shape of twelve rolls has a roll-shaped object to be stored whose end face is directed in the vertical direction and the outer peripheral surface 30A. A plurality of four pieces are arranged in contact with each other, and four pieces are stacked in three stages and stored in the main body portion 10A. Further, a top surface area 28 which is a portion covering the upper end surface of the toilet paper 30 is similarly formed by the front surface 12 and the back surface 14 between the main body portion 10A and the handle portion 24 of the packaging bag 10. Yes.

  As shown in FIGS. 1 to 3, the portion formed by the front surface 12 of the top surface region 28 extends from the vicinity of the handle portion 24 to the lower end of the top surface region 28 at a right angle to the handle portion 24. The first perforation 31 is formed by a length S1 that extends. Further, two toilet papers on the front side of the four toilet papers 30 arranged in each step, which are the central part of the front surface 12 in the side surface region 20 and serve as a roll non-contact part C. A second perforation 32 is formed at a portion between 30.

  In other words, in the packaging bag 10 of the present embodiment, the second sewing machine is placed on the roll non-contact portion C at 12 positions on the front surface in the side surface region 20, which is the portion between the two toilet papers 30 that are in contact with each other on the outer peripheral surface. The eyes 32 are formed.

  The second perforation 32 is connected to the first perforation 31 and starts from the end of the side surface region 20 adjacent to the top surface region 28 which is the uppermost part of the side surface region 20 from the toilet. The toilet paper 30 is formed to have a length S2 of about 228 mm, which is a length in which the toilet paper 30 is stacked in two lines so as to extend downward in a straight line along the axial direction of the paper 30 (Z direction in FIG. 2). Yes.

  Further, the strength of the first perforation 31 is higher than the strength of the second perforation 32. Specifically, the tie cut ratio of the first perforation 31 is a value in the range of 1: 3 to 1:10, and the tie cut ratio of the second perforation 32 is a value in the range of 1: 4 to 1:15. It is said that. However, the strength of the first perforations 31 is set to be stronger than the strength of the second perforations 32.

  That is, as shown in FIG. 4, for example, by setting the cut length L1 of the first perforation 31 to 4.0 mm and the interval T1 to 1.0 mm, the tie cut ratio of the first perforation 31 is 1: 4. did. Further, the tie-cut ratio of the second perforation 32 was set to 1: 5 by setting the cut length L2 of the second perforation 32 to 5.0 mm and the interval T2 to 1.0 mm.

  Here, the tie cut ratio of the perforation is a ratio between the interval T1 of the first perforation 31 and the cut length L1 of the first perforation 31, and the interval T2 of the second perforation 32 and the second This is the ratio to the cut length L2 of the perforation 32. The smaller the values of L1 and L2 with respect to T1 and T2 of the tie cut ratios T1: L1 and T2: L2, the more difficult the separation is, and the values of L1 and L2 with respect to T1 and T2 are smaller. The larger the size, the easier it is to separate. That is, according to this tie-cut ratio, the smaller the L1 with respect to T1 and the smaller the L2 with respect to T2, the higher the tensile strength (JISP8113) at the perforations 31, 32.

  In addition, the magnitude | size of the packaging bag 10 which concerns on this Embodiment is set to the magnitude | size which the toilet paper 30 does not collapse before opening in the packaging bag 10. FIG. That is, the dimensions of the packaging bag 10 are determined so that the toilet paper 30 is preferably wrapped almost exactly.

Next, the operation of the packaging bag 10 according to the present embodiment will be described.
According to the packaging bag 10 of the present embodiment, the objects to be stored formed in a roll shape are formed in a roll shape in such a manner that the end surfaces thereof are arranged in the vertical direction and the outer peripheral surfaces 30A are in contact with each other. Toilet paper 30 which is a storage object is stored.

  And the 1st perforation 31 is formed in the top | upper surface area | region 28 which covers the upper end surface of the toilet paper 30. FIG. Further, in the side surface region 20 that covers the outer peripheral surface 30A of the toilet paper 30, the second sewing machine is attached to the roll non-contact portion C that is the front surface 12 portion between the toilet papers 30 that are in contact with each other and are not in contact with the toilet paper 30. Eyes 32 are formed.

  However, at this time, the end portions of the first perforations 31 and the end portions of the second perforations 32 are connected to each other, and the perforations 31, 32 are formed. It is formed in the side surface region 20 so as to extend linearly along the axial direction of the toilet paper 30 from a portion adjacent to the top surface region 28 of the packaging bag 10.

  Therefore, according to the packaging bag 10 according to the present embodiment, when the packaging bag 10 is lifted and carried together with the toilet paper 30 from the handle portion 24, the first perforation 31 is formed in the top surface region 28 that does not contact the toilet paper 30. Will be placed. Similarly, even when the packaging bag 10 is lifted and carried, the second perforation 32 is arranged in a portion between the toilet papers 30 that are in contact with each other at the outer peripheral surfaces in the side region 20 that is difficult to be applied with tension. It will be.

  And in this Embodiment, since the intensity | strength of the 1st perforation 31 of the top | upper surface area | region 28 is made stronger than the intensity | strength of the 2nd perforation of the side surface area | region 20, the packaging of the state in which the toilet paper 30 was accommodated When the bag 10 is carried, the packaging bag 10 is not inadvertently broken from the perforations 31 and 32. That is, in the perforation existing in the top surface region 28 and the perforation existing in the side surface region 20, the perforation on the top surface region 28 side is easier to break, but the first of the top surface region 28 as described above. By making the strength of the first perforation 31 stronger than the strength of the second perforation 32 in the side surface region 20, the packaging bag 10 is more reliably prevented from being carelessly broken from the first perforation 31.

  On the other hand, since the strength of the first perforation 31 and the strength of the second perforation 32 are appropriately combined when opening the packaging bag 10 according to the present embodiment, the first perforation 31 and the second perforation Since it is not necessary to make the cut width of 32 smaller than necessary, it becomes easy for consumers with weak power such as elderly consumers to open the packaging bag 10 from the perforations 31, 32, and the roll-shaped toilet paper in the contents 30 becomes easy to take out.

  On the other hand, according to the present embodiment, since the first perforation 31 and the second perforation 32 are connected, when the packaging bag 10 is opened, either the top surface region 28 or the side surface region 20 is used. Even from the side, the top surface region 28 and the side surface region 20 can be continuously opened by opening along the perforation.

  Furthermore, in contrast to the perforated lines that can be opened by consumers with weak power as described above, in the present embodiment, a straight line is formed along the axial direction of the toilet paper 30 formed in a roll shape. The second perforation 32 is not only formed so as to extend from the portion adjacent to the top surface region 28 of the packaging bag 10 that covers the upper end surface of the toilet paper 30, It is formed in the side region 20.

  From this, for example, compared with the case where the perforation 32 is formed in a direction intersecting with the axial direction of the toilet paper 30 or the perforation 32 is formed only at the lowermost portion of the side region 20 of the packaging bag 10. Thus, the necessary length S2 of the perforation 32 can be easily secured.

  On the other hand, in the present embodiment, the tie cut ratio of the first perforation 31 is preferably a value in the range of 1: 3 to 1:10, and the tie cut ratio of the second perforation 32 is preferably Is in the range of 1: 4 to 1:15. That is, according to the present embodiment, when the tie cut ratio of the first perforation 31 is smaller than 1: 3, for example, 1: 2, or when the tie cut ratio of the second perforation 32 is smaller than 1: 4, for example. In the case of 1: 3, the perforations 31 and 32 are difficult to break.

  On the other hand, when the tie cut ratio of the first perforation 31 is greater than 1:10, for example 1:15, or when the tie cut ratio of the second perforation 32 is greater than 1:15, for example 1:20. When carrying the packaging bag 10, the packaging bag 10 easily breaks from the perforations 31 and 32. From the above, the range of the tie cut ratio of the first perforation 31 and the second perforation 32 is set as the above range of values.

  Here, the tie cut ratio T1: L1 of the first perforation 31 is preferably a value in the range of 1: 3 to 1:10, and the tie cut ratio T2: L2 of the second perforation 32 is preferably The reason why the value is in the range of 1: 4 to 1:15 will be specifically described. That is, the first perforation 31 expressed as “tie cut ratio (top surface)” in Table 1 is set to each tie cut ratio from 1: 2 to 1:15, and “tie cut ratio ( First, each sample was prepared with the combinations shown in Table 1 below, in which the second perforations 32 expressed as “the body surface)” had the tie cut ratios of 1: 3 to 1:20.

  For these samples, the packaging bag 10 is carried for about 10 minutes in the state where the toilet paper 30 is accommodated, for example, to test whether the packaging bag 10 is not inadvertently broken when the packaging bag 10 is carried. This was expressed as “strength”, and when the test result was no problem, it was “◯”, and when it was broken from the perforation 32 and there was a problem, it was “x”.

  On the other hand, the result of testing the ease of opening the packaging bag 10 from the perforations 31, 32 is expressed as “easy to open”. If the test result of this ease of opening is very easy to open, “◎”. “○” if easy to open, “Δ” if difficult to open, and “X” if very difficult to open.

According to the test results shown in Table 1, when the tie cut ratio T1: L1 of the first perforation 31 is 1:15 or greater, which is greater than 1:10, or the tie cut ratio T2: L2 of the second perforation 32 When the ratio is greater than 1:15 and greater than or equal to 1:20, the first perforation 31 is broken as L1 and L2 become relatively large. In other words, the sample marked “x” in Table 1 was broken at the boundary between the top surface region 28 and the side surface region 20 and close to the side surface region 20.

  Further, when the tie cut ratio T1: L1 of the first perforation 31 is 1: 2 or less, which is less than 1: 3, or when the tie cut ratio T2: L2 of the second perforation 32 is less than 1: 3, 1: 3 or less. In some cases, as T1 and T2 become relatively large, it becomes very difficult to open from the perforations 31 and 32.

  From the test results shown in Table 1, the tie cut ratio of the first perforation 31 is set to 1: 3 to 1:10, and the tie cut ratio of the second perforation 32 is set to 1: 4 to 1:15. The range value was confirmed to be good.

  In addition, in the said embodiment, although the to-be-contained object was the toilet paper, it may be a kitchen paper and the other roll-shaped article of a similar form may be sufficient. Moreover, although the polyethylene-made thing was employ | adopted as a packaging material which comprises the packaging bag of the said embodiment, you may employ | adopt the synthetic resin material which is plastic materials, such as a polypropylene and a polyethylene terephthalate. In the above embodiment, the first perforation and the second perforation are formed only on the front surface, but these perforations may be formed on the back surface.

Furthermore, in the above-described embodiment, four toilet papers are stacked in four stages, and only twelve are stored. However, other eight, sixteen, or other numbers of toilet papers may be used. In other words, it is only necessary to store two or more items to be stored in a roll shape so that the end surfaces thereof are directed in the vertical direction and the outer peripheral surfaces are in contact with each other. Alternatively, the number may be six, or may be stacked in other two, four, or more stages to accommodate other numbers. However, in this case, if the amount of toilet paper increases, the weight of the items to be stored also increases. Therefore, the thickness of the packaging material, the length of the perforation, the tie cut ratio, and the like are changed with respect to the above embodiment. For example.

  INDUSTRIAL APPLICABILITY The present invention can be used for storing sanitary products such as toilet paper and kitchen paper.

DESCRIPTION OF SYMBOLS 10 Packaging bag 20 Side surface area 24 Handle part 28 Top surface area 30 Toilet paper (object to be stored)
30A Outer peripheral surface 31 1st perforation 32 2nd perforation C Roll non-contact portion

Claims (4)

A packaging bag that stores a plurality of objects to be stored formed in a roll shape so that the end surfaces thereof face in the vertical direction and the outer peripheral surfaces are in contact with each other,
A first perforation is formed in the top surface area covering the upper end surface of the storage object,
A second perforation is formed in a portion between the objects to be in contact with each other in the side surface region covering the outer periphery of the object to be stored,
A packaging bag characterized in that the strength of the first perforation is higher than the strength of the second perforation.   The packaging bag according to claim 1, wherein the first perforation and the second perforation are connected to each other.   The packaging bag according to claim 1 or 2, wherein the second perforation is formed so as to extend linearly along the axial direction of the article to be stored. The tie cut ratio of the first perforation is a value in the range of 1: 3 to 1:10,
The packaging bag according to any one of claims 1 to 3, wherein a tie cut ratio of the second perforation is set to a value in a range of 1: 4 to 1:15.

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