TW201311518A - Packaging bag and method of manufacturing packaging bag - Google Patents

Abstract

Provided is a packaging bag including a notch for an opening starting point, and an easy-to-cut portion disposed on an extension of the notch in an opening direction. The easy-to-cut portion is formed to extend from one side of a back seal portion to the other side of the back seal portion, and the ends of the easy-to-cut portion are disposed away from side ends of the bag body, respectively.

Description

Packaging bag and packaging bag manufacturing method

The present invention relates to a packaging bag for packaging various contents such as pharmaceuticals, foods, and the like, and a method for producing the same.

In a known packaging bag, a laminated film in which a plurality of plastic films are laminated, and a package in which the contents of the air pillow are packaged are known. Such a package is ideal because it is easy to use and can reduce waste.

The laminated film constituting the packaging bag has various functions such as strength, tensile strength, gas barrier layer, moisture permeability, and fragrance retention in the film of each layer. Moreover, the packaging bag is a plastic film which is laminated with a function suitable for the kind of the contents.

However, since the packaging bag made of a plastic film is excellent in strength and tensile strength, the user cannot cut the end of the packaging bag by hand, and scissors, a cutting knife, or the like is used. Further, when the user sets the cut by scissors or the like, and the cut portion is opened, the cut portion may not be linear, and therefore the content may be escaping from the inside of the package.

Further, in the air pillow type packaging bag, a heat seal portion (back seal portion) having a thickness is provided on the back surface. Therefore, the back seal portion deteriorates the opening property of the package. Moreover, the problem of the opening property is more remarkable for a weak user such as a patient or a child.

For example, as a well-known technique for improving the opening property, there is a technique of Patent Document 1 below. The technology is used in the formation of packaging bags to become the starting point of Kaifeng The opening portion (the rough surface composed of fine uneven portions) is opened to improve the opening property. Further, in this technique, in order to prevent the packaging bag from being erroneously opened due to mischief of the child or the like (in order to be difficult to open), the easy opening portion is not applied to the outer periphery of the packaging bag, and the portion is formed more than the outer peripheral edge. Located on the inside.

In this way, since the easy opening portion is formed inside, the user cannot cut off even if the user wants to cut the outer peripheral edge. On the other hand, since the user pulls the film to the side, the easy opening portion can be moved toward the outer periphery of the package. Therefore, in this state, the user can unpack the easy portion as the starting point of the opening and unpack the package. However, in the technique of Patent Document 1, when the user opens the package, since the film must be pulled to the side of the work, the operation of opening the package becomes very complicated.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 3971910

Here, it is conceivable that the packaging bag E having the unsealing easy portion 32 formed along the side end portion 31 of the bag body 30 of the type shown in Fig. 8 is simplified. However, when the packaging bag E shown in FIG. 8 is dropped, there is a concern that the unsealing easy portion 32 of the packaging bag E may be broken due to the smashing caused by the falling.

For example, in the form of a square seal, around the heat-sealed package In the packaging bag, although the broken bag is less likely to occur, the broken bag is likely to be produced in an airbag type packaging bag having a soft side end portion which is not heat sealed. In particular, in the case of a package having a wide width and a heavy contents (for example, a package having a width of 70 mm and a weight of 50 g), it may be near the side end of the package due to falling. There are worries about breaking the bag.

Here, an experiment of dropping the packaging bag E shown in Fig. 8 was performed. Then, the portion of the opening portion 32 which is slightly located on the upper side from the lower surface G is deformed into an angular depression due to the falling of the punch. Further, in the portion where the angular depression is deformed, since the falling punch is concentrated, a hole (pinhole) 33 is formed in the portion. As described above, the packaging bag E shown in FIG. 8 cannot solve the problem of forming a hole when the fall is not solved.

Moreover, when the user holds the packaging bag E shown in FIG. 8 by hand, the same deformation is performed in the vicinity of the side end portion in an angular recessed manner. Further, in the portion deformed by the angular recess, the hole is formed due to the concentration of the grip force. As described above, the packaging bag E shown in FIG. 8 cannot solve the problem of suppressing the formation of the hole 33 when the user holds it by hand.

Further, in the packaging bag E shown in Fig. 8, the opening easy portion 32 is formed in a portion in the width direction. As a result, when the user opens a wide package E, there is a concern that the side end portion of one side cannot be opened beautifully to the other end portion. That is, there will be concerns that the cut will stop on the way. Further, when the cutting is stopped in the middle, when the user switches the contents of the packaging bag E to another container, there is a troublesome problem. Further, such a problem also occurs in the packaging bag of Patent Document 1.

In addition, an air pillow type packaging bag made of a soft plastic film is Ideal for use and easy to reduce waste. However, since the strength and tensile strength of the film are large, the user cannot simply unpack the package by hand.

Here, in order to allow the user to simply unpack the package by hand, it is considered that the side end portion of the plastic film of the outer layer is subjected to the flaw processing. However, since the strength of the film is lowered at the portion where the flaw processing is applied, there is a concern that a hole is formed in the packaging bag due to the dropping or the like. In particular, in the case of a bag having a large weight and a wide width, it is easy to break the bag due to the falling of the bag.

In view of the above, it is an object of the present invention to provide a so-called opposite two types in which it is easy to open a lid when a user opens a lid by hand, and an undesired hole is not easily formed when an unintended external force acts. Functional packaging bags and methods of making the same.

The packaging bag of the present invention includes a bag body that accommodates a content, and the bag body includes a back seal portion that is formed by sealing a film in a long direction and disposed on a back surface, and the film is sealed in a wide direction. And a pair of end seal portions disposed at the end portions in the longitudinal direction; an end seal portion formed by sealing the film and disposed at one side end portion; and an opening start point formed at the end edge seal portion a slit for use in the slit on the extension line of the slit in the unsealing direction, wherein the easy-cut portion spans from one side of the back seal portion to the other side than the back seal portion The end portions of the easy-to-cut portions are disposed apart from the side end portions of the bag body.

Moreover, in the packaging bag of the present invention, each end portion of the easy-to-cut portion may be disposed 10 to 25 mm apart from the side end portion of the bag body.

Moreover, in the packaging bag of the present invention, each end portion of the easy-to-cut portion may be disposed 10 to 15 mm apart from the side end portion of the bag body.

Further, in the packaging bag according to the present invention, each end portion of the easy-to-cut portion may be disposed at a distance of 14 to 36% of the width of the bag body separated from the side end portion of the bag body.

Moreover, in the packaging bag according to the present invention, each end portion of the easy-to-cut portion may be disposed at a distance of 14 to 21% of the width of the bag body separated from the side end portion of the bag body.

Moreover, in the packaging bag of the present invention, the back seal portion is formed by sealing both side edges of the film in the longitudinal direction, and the front end portion of the back seal portion is at the base end of the back seal portion. The portion may be curved to face the other side of the bag body.

Further, in the packaging bag according to the present invention, the end seal portion is disposed from the one end seal portion along the longitudinal direction of the bag body, and in the width direction of the bag body, The manner in which the cut portions overlap may be configured.

Moreover, in the packaging bag according to the present invention, the easy-to-cut portion is formed in a rectangular shape, and the slit may be disposed in a central portion of the easy-to-cut portion in the longitudinal direction of the bag body.

Moreover, the method for producing a packaging bag according to the present invention is the method for producing the packaging bag described above, wherein the sealing film is formed by sealing both side edges of the film in a longitudinal direction in a tubular shape. Back seal And forming a pair of the end seal portions in order to form the tubular film in a bag shape, and sealing the film in a wide direction, wherein the film has the easy-cut portion at both end portions, and the The cut portion is disposed from the one side of the back seal portion to the other side than the back seal portion.

[Formation for carrying out the invention]

Hereinafter, a packaging bag according to an embodiment of the present invention will be described with reference to Figs. 1 to 5 . In the following description, the upper side, the lower side, the left side, and the right side of FIG. 1 are respectively the upper side, the lower side, the left side, and the right side of the packaging bag A, and the upper side and the lower side of FIG. 2, FIG. 4, and FIG. 5 are respectively The upper side and the lower side of the packaging bags A and B are the right side and the left side of the packaging bags A and B, respectively, on the left side and the right side of FIGS. 2, 4, and 5.

<First embodiment>

First, the packaging bag of the first embodiment will be described with reference to Figs. 1 to 4 . As shown in FIGS. 1 and 2, the packaging bag A includes a contents X and a bag body 1 that houses the contents X. In the present embodiment, the content X is not limited thereto as a powdery drug, and may be, for example, a liquid drug, a granular drug, or a block-shaped solid food (individually packaged candy, etc.). . Further, in the present embodiment, the bag body 1 is a flat air pillow type package which is formed in a rectangular shape in front view.

The bag body 1 is formed of a laminated film F. The laminated film F, It is a polymer resin (SPE) which is laminated as a binder on one side of a film formed of polyethylene terephthalate (PET); an aluminum foil for imparting barrier properties to gas; high as a binder Molecular resin; and straight chain-chain low density polyethylene (LLDPE) to prevent charging.

The bag body 1 is provided with a back seal portion 2 disposed on the back surface, and a pair of end seal portions 3 and 4 disposed at the end portions in the longitudinal direction. Specifically, the bag body 1 is provided with a back seal portion 2 formed by heat-sealing (center sealing) both side edges of the strip-shaped film F along the longitudinal direction; and the upper end of the film F in the wide direction The upper end seal portion 3 formed by the sealing portion and the lower end seal portion 4 formed by sealing the lower end portion of the film F in the wide direction are used to package the contents X.

The bag body 1 is provided with an easy-to-cut portion 5 which is more fragile than the surroundings for easy cutting. The bag body 1 includes an end edge sealing portion 7 disposed at the left end portion (one side end portion) 1a, and a slit 8 formed at the opening edge sealing portion 7 for opening the sealing portion. Further, the surface on the opposite side of the back surface of the bag body 1 is referred to as the front surface of the bag body 1.

The back seal portion 2 is formed in a strip shape, and is disposed at a slightly central portion in the width direction of the back surface of the pouch body 1. The back seal portion 2 is bent at the base end portion 2b so that the front end portion 2a faces the right side (the other side). The upper end seal portion 3 is formed in a strip shape and is disposed at an upper end portion which is a short side portion of the bag body 1. The lower end seal portion 4 is formed in a strip shape and is disposed at a lower end portion which is a short side portion of the bag body 1.

The easy-to-cut portions 5 are provided in a pair and are disposed on the front surface of the bag body 1 and on the back surface of the bag body 1, respectively. The easy-cut portion 5 is formed in a rectangular shape. With The body-cut portion 5 is formed in a strip shape. Each end portion 5a of the easy-to-cut portion 5 is disposed apart from the side end portions 1a, 1b.

The easy-cut portion 5 is an extension line of the slit 8 disposed in the unsealing direction. The easy-to-cut portion 5 is disposed along the upper end seal portion 3 of the bag body 1. One end portion (left end portion) 5a of the easy-to-cut portion 5 on the back side is disposed on one side (left side) of the back seal portion 2, and the other end portion (right end portion of the easy-cut portion 5 on the back side) 5a is a position that is disposed on the other side (right side) than the back seal portion 2.

Thereby, the easy-to-cut portion 5 on the back side is continuously disposed from a portion located further to the left side than the back seal portion 2 to a portion located further to the right side than the back seal portion 2. In other words, the easy-to-cut portion 5 on the back side is disposed so as to straddle the back seal portion 2.

When the vertical dimension a of the easy-to-cut portion 5 is small, when the user opens the pouch main body 1, there is a concern that the cut portion is detached from the easy-cut portion 5. Conversely, when the longitudinal dimension a of the easy-to-cut portion 5 is large, the bag body 1 may have a problem of breaking the bag. Therefore, the vertical dimension a of the easy-cut portion 5 is set to 3 to 30 mm, preferably 3 to 10 mm, and more preferably 4 to 7 mm.

When the distances d and e between the side end portions 1a and 1b of the bag body 1 and the end portion 5a of the easy-to-cut portion 5 are small, the bag body 1 may have a problem of breaking the bag. On the other hand, when the gaps d and e are large, when the user opens the envelope main body 1, since the cutting direction is inclined, there is a concern that the cutting is detached from the easy-cut portion 5 or the cutting is stopped on the way. .

Therefore, the intervals d and e are set to 10 to 25 mm, preferably 10 to 15 mm, and more preferably 13 to 15 mm. In other words, the The interval d and e are set to 14 to 36% of the width of the bag body 1, and are preferably set to 14 to 21%, more preferably 19 to 21%.

In the present embodiment, the bag body 1 has a length of 173 mm, the bag body 1 has a width of 70 mm, and the easy-cut portion 5 has a longitudinal dimension (length dimension) a of 5 mm, and the easy-cut portion 5 has a horizontal dimension (wide size). b is 42 mm, and the distance c between the upper end of the bag body 1 and the upper end of the easy-to-cut portion 5 is 20 mm, and one side end portion (left end portion) 1a of the bag body 1 and one end portion of the easy-cut portion 5 (left end) The interval d of the portion 5a is 13 mm, and the distance e between the other side end portion (right end portion) 1b of the bag body 1 and the other end portion (right end portion) 5a of the easy-to-cut portion 5 is 15 mm.

In the present embodiment, the easy-to-cut portion 5 includes a plurality of linear flaws (cuts) arranged in the width direction. Further, the processing applied to the easy-cut portion 5 is not particularly limited as long as the processing such as the region in which the easy-to-cut portion 5 can be easily opened can be performed. For example, the processing may be a flaw processing in which a physical force is applied in contact with the film F, or a flaw formed by non-contact (for example, a laser) may be formed, or a non-penetrating dotted line or a concave portion may be formed.

In the present embodiment, the flaw of the easy-to-cut portion 5 is non-penetrating, that is, only the PET layer penetrating the surface layer (the layer on the outermost side) of the film F. Further, the processing applied to the easy-cut portion 5 is not required to be processed through the aluminum layer (layer formed of aluminum foil). That is, the processing applied to the easy-cut portion 5 is such a process as long as it does not penetrate the aluminum layer and the layer on the inner side.

The edge seal portion 7 is at the upper portion of the left end portion 1a of the bag body 1 to It is arranged along the left end 1a. Specifically, the edge seal portion 7 is disposed from the upper end seal portion 3 along the longitudinal direction of the bag body 1.

The edge seal portion 7 is disposed so as to overlap the easy-cut portion 5 in the width direction of the bag body 1. Specifically, the upper end portion of the edge seal portion 7 is disposed on the upper side than the upper end portion of the easy-cut portion 5, and the lower end portion of the end edge seal portion 7 is disposed more than the lower end portion of the easy-cut portion 5. On the lower side. The edge seal portion 7 is formed by sealing the film F.

The slit 8 is disposed in the central portion of the easy-to-cut portion 5 in the longitudinal direction of the bag body 1. The slit 8 is formed at the end edge sealing portion 7 from the left end portion 1a of the bag body 1 toward the inner side. Thereby, as shown in FIG. 3, the bending direction of the back seal portion 2 of the bag body 1 to be heat-sealed (the direction toward the front end portion 2a toward the base end portion 2b of the back seal portion 2) and the slit direction of the slit 8 are The direction of opening is the same.

However, in the present embodiment, since the content X is in a powder form, the content X is accommodated in the inside of the bag body 1 in an amount of about 50% of the amount that can be accommodated inside the bag body 1. This is when the powdery content X is filled and will fly. Therefore, when a large amount of contents X are accommodated in the inside of the bag body 1, there is a concern that the contents X are interposed between the upper end seal portion 3 and the lower end seal portion 4. In addition, when the contents X are individually packaged confectionery or the like, the contents X are accommodated in the inside of the pouch main body 1 in an amount of about 70 to 80% of the amount that can be accommodated inside the pouch main body 1.

Next, a method of manufacturing the packaging bag A of the present embodiment will be described.

First, the inner sides of the both side edges of the laminated film F are joined to each other, and the portions thereof are heat-sealed in the longitudinal direction. Thereby, the back seal part 2 is formed in the center part of the bag main body 1 in the width direction, and the strip-shaped film F is formed in the cylindrical body. Next, one end portion of the opening of the cylindrical body is heat-sealed in the wide direction to form the lower end seal portion 4.

Then, after the contents X are housed inside the film F, the upper end seal portion 3 is formed such that the other end portion is heat-sealed in the wide direction. In this way, the package A is manufactured. In addition, the packaging bag A is a side wall portion of a strip-shaped film (raw material) F which is continuously sealed for a long length in the longitudinal direction, and a wide direction and a cutting manner of the sealing film F at a predetermined interval in the longitudinal direction, It can also be manufactured continuously.

Further, before the packaging bag A is formed, it is preferable to form the film F having a uniform thickness (the back sealing portion 2 is not formed) and to form the easy-to-cut portion 5. Then, as shown in FIG. 4, the easy-to-cut portion 5 is formed in a strip shape toward the central portion in the width direction of the film F so as to be disposed on the front surface of the bag body 1. The easy-to-cut portion 5 is disposed on the back surface of the bag body 1 from the one side of the back seal portion 2 to the other side than the back seal portion 2, and is formed in the film F along the width direction. Both end portions (both ends in the width direction) form a pair of strips.

Next, the first function of the packaging bag A of the present embodiment will be described, that is, the function of opening the package is easy when the user opens the hand by hand.

The area of one side to be separated (the upper end corner of the bag body 1) is held by one hand of the user, and the other area (near the slit 8) The left side end portion 1a) is held by the other hand of the user. Then, the upper end corner of the bag body 1 is pulled by the user toward the other end side. Then, the cutting is started from the right end portion of the slit 8, and the cut portion reaches the left end portion of the easy-cut portion 5.

Thereafter, the cutting is continued along the easy-cut portion 5, and the cut portion reaches the right end portion of the easy-to-cut portion 5. Then, the cut portion is finally brought to the right end portion 1b of the bag body 1. Thus, even if the user is weak, the user can easily open the package from the left end portion 1a of the bag body 1 across the right end portion 1b.

Further, the bag body 1 is separated from the lower side of the easy-to-cut portion 5 (most of the bag body 1) and the upper side (the strip-shaped cut end) of the easy-to-cut portion 5. Further, a portion that is cut along the easily cut portion 5 into a substantially linear shape (a portion indicated by a chain line in FIG. 1) becomes the opening 10 of the bag body 1. Thereby, the content X can be easily taken out. Further, the width of the opening 10 (that is, the width of the edge seal portion 7) is set so that the contents X are taken out from the opening 10 without any trouble.

Next, a description will be given of a second function of the packaging bag A of the present embodiment, that is, when a careless external force is applied, it is difficult to form a so-called unnecessary hole.

For example, when the package A is dropped, the force acting on the bag body 1 is determined by the weight of the contents X; the acceleration due to the heavy force; and the falling distance. Therefore, when the package containing the heavy content X is dropped, the force acting on the bag body 1 described above and the force from the falling G (the falling force) as the counterforce against the force act on the package. A.

For example, the upper end seal portion 3 of the bag body 1 is on the lower side, and the package bag A is dropped. Therefore, since the strength of the upper end seal portion 3 is greatly different from the strength of the both end portions (the portions not sealed) 1a, 1b of the bag body 1, the upper end seal portion 3 is subjected to the fall. The punching is concentrated on the corners of both sides of the bag body 1. Thereby, the corner portion is extremely curved and becomes angular. However, when the easy-to-cut portion 5 is formed in the portion where the angular deformation is formed, the easy-cut portion 5 is bent, so that the hole is easily formed in the easy-to-cut portion 5.

On the other hand, in the packaging bag A of the present embodiment, each end portion 5a of the easy-to-cut portion 5 is separated from the side end portions 1a and 1b of the bag body 1. In other words, the easy-to-cut portion 5 is formed at a position slightly inside from the side end portions 1a and 1b of the bag body 1, and is formed at a position further inside than the angularly deformed portion. Thereby, even if the bag main body 1 is deformed by falling, the easy-to-cut portion 5 does not bend, so that the hole is not formed in the easy-to-cut portion 5. Therefore, even if the bag body 1 is dropped and is washed, the bag body 1 can be prevented from being broken.

According to the above, the packaging bag A of the present embodiment includes the bag body 1 that houses the contents X. The bag body 1 includes a back sealing portion 2 that is formed by sealing the film F in the longitudinal direction and disposed on the back surface. a pair of end seal portions 3, 4 which are formed by sealing the film F in the width direction, and are disposed at the end portions in the longitudinal direction; the film is sealed, and is disposed at the end edge of one of the side end portions 1a. a portion 7 formed in the opening seal portion 7 at the beginning of the opening; and an easy-cut portion 5 disposed on the extension line of the slit 8 in the unsealing direction, the easy-cut portion 5 being further displaced from the back seal portion 2 It is disposed on one side and is disposed more on the other side than the back seal 2, and is easy to cut. Each end portion 5a of the portion 5 is disposed apart from the side end portions 1a, 1b of the bag body 1.

Therefore, in the packaging bag A of the present embodiment, the easy-to-cut portion 5 is disposed from a position on the left side of the back seal portion 2 to a position on the right side of the back seal portion 2. Specifically, the easy-to-cut portion 5 is continuously formed with a constant width and is formed at least across the back sealing portion 2. Then, the slit 8 for opening the seal is formed in the edge seal portion 7 disposed at the left end portion 1a of the bag body 1, and the easy-cut portion 5 is disposed on the extension line of the slit 8 in the unsealing direction.

Thereby, when opening the packaging bag, the slit 8 becomes the starting point of opening (cutting), and the bag body 1 is cut along the easy-cut portion 5 disposed on the extension line of the slit 8. Therefore, the bag body 1 is cut straight from the left end portion 1a across the right end portion 1b, so that it is easy to unpack the package A.

For example, a weak-powered user unpacks the package A and moves the contents X to another container (for example, a cup-shaped container), and even when the container is filled with water, the package A can be easily opened even with weak force. Further, since the opening 10 is linear, the user can move the contents X to another container without trouble, and can be easily performed.

Further, in the packaging bag A of the present embodiment, each end portion 5a of the easy-to-cut portion 5 is disposed apart from the side end portions 1a and 1b. Specifically, each end portion 5a of the easy-to-cut portion 5 is not connected to the slit 8 (each end portion 5a of the easy-to-cut portion 5 is separated from the slit 8), and each end portion 5a of the easy-to-cut portion 5 is located in the pocket The side end portions 1a, 1b of the body 1 slightly enter the inner portion.

Therefore, when the package A containing the contents X is dropped, the bag body 1 is Although the corner portion is formed into a deformed portion that is curved and formed into an angular shape, the deformed portion can be prevented from expanding to the easily cut portion 5. Thereby, since it is possible to prevent the bag from being broken in the portion of the easy-to-cut portion 5, it is possible to prevent the contents X from leaking from the bag body 1.

Further, in the packaging bag A of the present embodiment, each end portion 5a of the easy-to-cut portion 5 is separated from the side end portions 1a and 1b of the bag body 1 by 10 to 25 mm (specifically, 10 to 15 mm, more specifically 13 to 15 mm). ) is configured. In other words, each end portion 5a of the easy-to-cut portion 5 is separated from the side end portions 1a and 1b of the bag body 1 by 14 to 36% of the width of the bag body 1 (specifically, 14 to 21%, more specifically 19 to 19). 21%) the distance is configured.

Therefore, in the packaging bag A of the present embodiment, the end portion 5a of the easy-to-cut portion 5 is disposed apart from the both end portions 1a, 1b of the bag body 1 by a predetermined distance. Thereby, even if the package body A is dropped and the bag body 1 is deformed, the easy-cut portion 5 can be prevented from being deformed. Therefore, it is possible to prevent the bag body 1 from breaking the bag.

Further, in the packaging bag A of the present embodiment, the back seal portion 2 is formed by sealing both side edges of the film F in the longitudinal direction, and the front end portion 2a of the back seal portion 2 is at the base of the back seal portion 2. The end portion 2b is bent toward the other side of the bag body 1.

Therefore, in the packaging bag A of the present embodiment, the back seal portion 2 is bent at the base end portion 2b, the front end portion 2a of the back seal portion 2 is positioned on the right side, and the base end portion 2b of the back seal portion 2 is positioned on the left side. Thereby, since the bending direction of the back seal portion 2 coincides with the slit direction of the slit 8 in the unsealing direction, the unsealing of the packaging bag A becomes easier.

Further, in the packaging bag A of the present embodiment, the end seal portion 7 is disposed from the one end seal portion 3 along the longitudinal direction of the bag body 1, and is disposed in the width direction of the bag body 1 It overlaps with the easy-cut portion 5.

Therefore, in the packaging bag A of the present embodiment, the end edge sealing portion 7 is disposed from the upper end seal portion 3 along the longitudinal direction of the bag body 1. Further, the end edge sealing portion 7 is disposed so as to overlap the easy-cut portion 5 in the width direction of the bag body 1. As a result, when the packaging bag A is dropped, the portion (the left end portion 1a) of the edge seal portion 7 of the bag body 1 is not deformed, so that the left end portion of the easy-to-cut portion 5 can be surely prevented from being deformed.

Further, in the packaging bag A of the present embodiment, the easy-to-cut portion 5 is formed in a rectangular shape, and the slit 8 is disposed in the center portion of the easy-to-cut portion 5 in the longitudinal direction of the bag body 1.

Therefore, in the packaging bag A of the present embodiment, the easy-to-cut portion 5 has a rectangular shape, and specifically, is formed in a strip shape that is long in the width direction of the bag body 1. Further, the slit 8 is disposed at the central portion of the easy-to-cut portion 5 in the longitudinal direction of the bag body 1. Thereby, the cut portion from the slit 8 can surely reach the left end portion 5a of the easy-to-cut portion 5.

Moreover, the manufacturing method of the packaging bag A of this embodiment is provided, and the back surface sealing part 2 is formed, and the both edge parts of the film F are sealed in the longitudinal direction in order to shape the strip-shaped film F into a cylindrical shape, and the back sealing part 2 is formed. In order to form the tubular film F into a bag shape, the film F is sealed in a wide direction to form a pair of end seal portions 3 and 4, and the film F is provided with an easy-cut portion 5 at both end portions. Further, the easy-to-cut portion 5 is disposed further from the back seal portion 2 to the other side than the back seal portion 2.

Therefore, in the packaging bag A of the present embodiment, the film F is provided with the easy-to-cut portion 5 at both end portions. Thereby, when the back film portion F, the upper end seal portion 3, and the lower end seal portion 4 are formed by the sealing film F, the easy-cut portion 5 is formed to be further positioned on the one side than the back seal portion 2 of the back seal portion 2. It is disposed closer to the other side than the back seal portion 2.

<Second embodiment>

Next, a packaging bag according to a second embodiment will be described with reference to Fig. 5 . In addition, in FIG. 5, the same reference numerals as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof will not be repeated.

As shown in FIG. 5, the packaging bag B of the present embodiment is located closer to the upper end seal portion 3 of the bag body 1, that is, at the upper center portion of the bag body 1, and is wider than the back seal portion 2. A rectangular (slightly square) cut-away portion 5A. The packaging bag B of the present embodiment is disposed in the upper portion of the back sealing portion 2 in comparison with the packaging bag A of the first embodiment.

In the present embodiment, the bag body 1 has a length of 173 mm, the bag body 1 has a width of 70 mm, and the longitudinal dimension a and the lateral dimension b of the easy-to-cut portion 5A are larger than the width of the back seal portion 2. 30 mm, the distance c between the upper end of the bag body 1 and the upper end of the easy-cut portion 5A is 15 mm, and the interval d between the side end portion 1a of the bag body 1 and the end portion 5A1 of the easy-cut portion 5A is 20 mm, and the side end portion of the bag body 1 The interval e between 1b and the end portion 5A1 of the easy-cut portion 5A is 20 mm.

<Example>

Next, an embodiment will be described. In order to compare the packaging bag A of the first embodiment and the packaging bag B of the second embodiment, the packaging bag C of Comparative Example 1 and the packaging bag D of Comparative Example 2 shown in Figs. 6 and 7 were prepared. The packaging bag C of the comparative example 1 shown in FIG. 6 is a strip-shaped easy-cut part 5B which has the both end parts 1a and 1b of the bag body 1. The packaging bag D of the comparative example 2 shown in FIG. 7 is a strip-shaped easy-cut part 5C, 5C which has the upper side edge sealing part 3 and the lower side edge sealing part 4 of the bag body 1. Further, the packaging bag C of Comparative Example 1 and the packaging bag D of Comparative Example 2 did not include the end edge sealing portion 7 and the slit 8.

First, a monomer drop test and a package drop test were carried out for the packaging bags A, B, C, and D in which 50 g of the contents were packaged. The monomer drop test was a test in which the package was dropped from a height of 80 cm (drop distance). The number of samples in the monomer drop test was 63 bags of the first embodiment, 63 bags B of the second embodiment, 60 bags of Comparative Example 1, and 60 packages of Comparative Example 2. Bag D.

The package drop test was a test in which the outer box containing 21 bags was dropped three times in a position of 1.2 m in height. The number of samples in the package drop test is set to 3 boxes (3 boxes × 21 = 63 pieces). The packaging bags A and 3 boxes (3 boxes × 21 = 63 pieces) of the first embodiment are the bags of the second embodiment. B, 15 boxes (15 boxes × 21 = 315) The packaging bags C of Comparative Example 1, C, 15 boxes (15 boxes × 21 = 315) The packaging bags D of Comparative Example 2.

The packaging bag A of the first embodiment and the packaging bag of the second embodiment B, in the monomer drop test and the package drop test, there is no broken bag. On the other hand, in the packaging bag C of Comparative Example 1, in the single drop test, two out of 60 were broken, and in the package drop test, among 315, 8 were broken. On the other hand, in the packaging bag D of Comparative Example 2, in the single drop test, 60 of the 60 pieces were broken, and in the package drop test, among 315, 4 pieces were broken.

In addition, in the packaging bag A of the first embodiment and the packaging bag B of the second embodiment, the cross-cutting test from the easy-to-cut portion 5 and the easy-to-cut portion 5A of the slit 8 is performed (whether the cutting in the width direction is performed) easily). As a result, both the packaging bag A of the first embodiment and the packaging bag B of the second embodiment have good cross-cut properties.

In addition, in the packaging bag A of the first embodiment and the packaging bag B of the second embodiment, the straightness test in the easy-to-cut portion 5 (the easy-to-cut portion 5A) is performed (whether the cutting in the wide direction is linear) . As a result, in the packaging bag A of the first embodiment, since the cut portion (opening opening 10) is along the easy-to-cut portion 5, the straightness is good. In the packaging bag B of the second embodiment, since the easy-to-cut portion 5A has a wide width, the cut portion (opening opening 10) is slightly up and down in the easy-to-cut portion 5A, but there is no problem.

Further, in the packaging bag A of the first embodiment, a tear sensory test was performed on 12 people. As a result, 10 people felt that "the tearing feeling was very good", one person felt "a good tearing feeling", and the other one felt "good."

As described above, the packaging bag A and the packaging bag B according to the embodiment of the present invention can be easily opened even with a weak force, and since the cut portion can be opened in a straight line, it is easy to move the contents X to another container. Furthermore, The packaging bag A and the packaging bag B according to the embodiment of the present invention can also be subjected to falling and squeezing. These functions can also be confirmed by the above test results.

As described above, the packaging bag A and the packaging bag B according to the present invention can provide a kind of opening, which is easy when the user opens the hand by hand, and vice versa, when the unintended external force is actuated, there is a so-called formation unnecessary. The hole is difficult to reverse the opposite of the two functional bags.

For example, the user unpacks the package A (package B), moves the contents X to another container (for example, a cup-shaped container), and adds water to the container for drinking, even if the patient has such weak strength. The user can also easily unpack the bag A (package B). Further, since the opening 10 is formed in a straight line, the contents X can be easily moved to another container. Further, although the easy-to-cut portion 5 to which the flaw processing or the like is applied is provided, even if the packaging bag A (packaging bag B) in which the contents X is sealed is dropped, the packaging bag A (packaging bag B) can be prevented from being broken.

As described above, in the packaging bag A (packaging bag B) of the present invention, the bag breaking prevention and the opening property can be improved at the same time. Further, since the air pillow type design can be formed in a vertically long strip shape or a wide width, it is possible to design such a container that can easily move the powdery contents X to a cup or the like. Therefore, the packaging bag A (packaging bag B) of the present invention is particularly suitable for packaging bags for patients, children, and the like having weak strength.

In addition, the packaging bag of the present invention is not limited to the above-described embodiment, and design changes, improvements, and the like can be freely performed as appropriate without departing from the gist of the invention. Further, each of the above-described various embodiments, methods, and the like may be arbitrarily used and combined (in the configuration of another embodiment, In addition, the configuration and the method of the various modified examples described below may be arbitrarily selected, and the configuration, method, and the like of the above-described embodiments may be employed. .

For example, in the above-described embodiment, the package A (package B) has a configuration in which the easy-cut portion 5 (the easy-to-cut portion 5A) is provided on the front and the back of the bag body 1, but the configuration is not limited thereto. Composition. Specifically, the packaging bag may have a configuration in which the easy-to-cut portion 5 (the easy-to-cut portion 5A) is provided only on the back surface of the bag body 1. In short, the packaging bag is provided with the easy-to-cut portion 5 (the easy-to-cut portion 5A) on the back surface of the bag body 1, and the easy-to-cut portion 5 (the easy-to-cut portion 5A) is spanned from the side closer to the back sealing portion 2 It is disposed on the other side than the back seal portion 2.

[Industry use possibility]

The packaging bag of the present invention is designed by combining the slit and the easy-cut portion to make the opening property good. Further, even if the packaging bag of the present invention includes a slit (end edge sealing portion), a wide opening opening for taking out the contents can be formed, and even if the easy-to-cut portion is provided, it is possible to prevent the bag from being broken at the time of dropping. Further, the packaging bag of the present invention can be used as a packaging bag for various contents (powder, granule, solid or liquid) of pharmaceuticals, foods, and the like. Moreover, the packaging bag of the present invention is a packaging bag suitable for a weak user.

1‧‧‧ bag body

1a‧‧‧Side end (left end)

1b‧‧‧ side end (right end)

2‧‧‧Back seal

2a‧‧‧ front end

2b‧‧‧ base end

3‧‧‧End seal (upper end seal)

4‧‧‧End seal (lower end seal)

5, 5A‧‧‧Easy Department

5a, 5A1‧‧‧ end

7‧‧‧End edge seal

8‧‧‧ incision

10‧‧‧Opening

A, B‧‧‧ bags

F‧‧‧film

X‧‧‧ contents

Fig. 1 is a front elevational view showing the entire packaging bag according to the first embodiment of the present invention.

Fig. 2 is a rear elevational view showing the entire package of the embodiment.

Fig. 3 is a perspective view of a main part of the packaging bag of the embodiment.

Fig. 4 is a development view of the packaging bag of the embodiment.

Fig. 5 is a rear elevational view showing the entire packaging bag of the second embodiment.

Fig. 6 shows an overall rear view of the packaging bag of the comparative example.

Fig. 7 is a view showing the entire rear view of a packaging bag of another comparative example.

Fig. 8 is a view showing a state in which the packaging bag is dropped, and shows an overall front view of the packaging bag.

A‧‧‧Package

1‧‧‧ bag body

3‧‧‧End seal (upper end seal)

E‧‧‧ interval

D‧‧‧ interval

C‧‧‧ interval

7‧‧‧End edge seal

8‧‧‧ incision

5a‧‧‧End

a‧‧‧Vertical size (length dimension)

1a‧‧‧Side end (left end)

F‧‧‧ laminated film

B‧‧‧ horizontal method (wide size)

2‧‧‧Back seal

10‧‧‧Opening

5‧‧‧Easy Department

1b‧‧‧ side end (right end)

X‧‧‧ contents

4‧‧‧End seal (lower end seal)

Claims (9)

A packaging bag comprising a bag body for accommodating a content, wherein the bag body is formed by sealing a film in a longitudinal direction, and is disposed on a back sealing portion of the back surface; and sealing the film in a wide direction, And a pair of end seal portions disposed at the end portions in the longitudinal direction; the end seal portion formed by sealing the film and disposed at one side end portion; and the opening start point formed at the end edge seal portion And an easy-cut portion disposed on an extension line of the slit in the unsealing direction, wherein the easy-to-cut portion is located from one side of the back seal portion to the other side than the back seal portion In the arrangement, each end portion of the easy-to-cut portion is disposed apart from the side end portion of the bag body. The packaging bag according to claim 1, wherein each end portion of the easy-to-cut portion is disposed 10 to 25 mm apart from a side end portion of the bag body. The packaging bag according to claim 2, wherein each end portion of the easy-to-cut portion is disposed 10 to 15 mm apart from a side end portion of the bag body. The packaging bag according to claim 1, wherein each end portion of the easy-to-cut portion is disposed at a distance of 14 to 36% of a width of the bag body separated from a side end portion of the bag body. The packaging bag according to claim 2, wherein each end portion of the easy-to-cut portion is disposed at a distance of 14 to 21% of a width of the bag body separated from a side end portion of the bag body. The packaging bag according to any one of claims 1 to 5, wherein the back seal portion is formed by sealing both side edges of the film in a longitudinal direction, and forming a front end of the back seal portion The portion is bent at a base end portion of the back seal portion and faces the other side of the bag body. The packaging bag according to any one of claims 1 to 5, wherein the edge seal portion is disposed from one of the end seal portions along a longitudinal direction of the bag body, and is in the bag The width direction of the body is arranged to overlap the aforementioned easy-to-cut portion. The packaging bag according to any one of claims 1 to 5, wherein the easy-to-cut portion is formed in a rectangular shape, and the slit is disposed in a central portion of the easy-to-cut portion in a longitudinal direction of the bag body. A method of producing a packaging bag according to any one of claims 1 to 8, wherein the film is formed in a cylindrical shape to seal both sides of the film in a long direction. The edge portion is formed with the back seal portion; and the tubular film is formed into a bag shape, and the film is sealed in a wide direction to form a pair of the end seal portions, and the film is provided at both end portions. In the above-described easy-to-cut portion, the easy-to-cut portion is disposed from one side of the back seal portion to the other side than the back seal portion.