JPH07291353A - Rod body package - Google Patents

Abstract

PURPOSE:To easily release a package from a packaging container, reduce a use amount of a film, and lower a cost. CONSTITUTION:A first film is provided with a flat part 14b and a bulge part 14a for containing a rod body. A second film is heat-sealed to the first film. Bonding parts 33, 34 are formed in the vicinity of both ends of a rod body package. Since the rod body package other than the vicinity of the both ends thereof is separated from a packaging container 11, a finger can be easily inserted between the rod body package and the packaging container 11, which facilitates the release of the rod body package from the packaging container 11. In addition, since the flat part 14b provided at the side edges of the rod body package can be reduced in width, the rod body package can be also reduced in width. Therefore, the use amounts of the first film and the second film are reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod-shaped body package.

[0002]

Conventionally, liquid foods such as milk and soft drinks are
Generally, it is sold in a packaging container made of a packaging material formed by coating the outer surface and the inner surface of a paper base material with a polyethylene resin or the like. Examples of the packaging container include a gable-top packaging container having an inclined top portion, a brick packaging container having a flat top portion, and the like. Of these, small-capacity packaging containers that the purchaser can swallow at a time are generally sold at stores, vending machines, etc., and are often drunk on the spot. Therefore, a straw package formed by accommodating a straw in a film is usually attached to the packaging container for sale.

Also, in a packaging container for fluid foods such as yogurt and frozen dessert, a spoon package formed by accommodating a resin spoon in a film is usually attached to the packaging container for sale. I am trying. 2 is a perspective view of a conventional packaging container, and FIG. 3 is a perspective view of a conventional straw package.

As shown in the drawing, a rod-shaped package, for example, a straw package 55 is attached to the side surface of the packaging container 11. Then, the purchaser of the packaging container 11 peels off the straw package 55 from the packaging container 11.
However, the straw 56 can be taken out from the straw package 55. In this case, the straw package 55 is composed of the first film 14 and the second film 13 whose edges are heat-sealed. The first film 14 has the bulging portion 14a and the flat (bending) portion 14b, and the second film 13
By heat-sealing the straws with the first film 14, the straw 56 can be sealed in the bulging portion 14a.

A plurality of straw packages 55 are collectively manufactured as a stroller (not shown).
Each piece is cut, pressed against the packaging container 11, and attached to the packaging container 11 by heating and melting. In addition, 57 is a joining part for sticking the straw package 55 to the packaging container 11. Next, a conventional straw applicator will be described.

FIG. 4 is an enlarged view of the heat-welded portion in the conventional straw applicator. In the figure, 55 is a straw package after being cut from a straw doll (not shown), and 56 is a straw housed in the straw package 55. Further, 61 is a heating portion, and 62a is a concave portion formed in the center front (left side in the drawing) of the heating portion 61 and accommodating the bulging portion 14a.

The heating portion 61 has a concave portion 62a and a bulging portion 14a.
Hold the straw package 55 in the state of containing a,
The straw package 55 is attached to the packaging container 11 (FIG. 2). Therefore, two pairs of heaters 63 are arranged in the portion corresponding to the flat portion 14b (a pair of them is shown in FIG. 4).

[0008]

However, in the conventional rod-shaped package, the flat portion 14b is pressed against the packaging container 11 by the two pairs of heaters 63, and the straw package 55 is attached to the packaging container 11. Therefore, it becomes difficult to insert a finger between the straw package 55 and the packaging container 11, and it becomes difficult to peel the straw package 55 from the packaging container 11 accordingly.

When the straw package 55 is attached to the packaging container 11, the heat of the heater 63 is applied to the straw 5.
Since the straw 56 is deformed or deteriorated when it is transmitted to No. 6, it is necessary to secure a sufficient width of the flat portion 14b. Therefore, the width of the straw package 55 is widened, and the usage amounts of the first film 14 and the second film 13 are increased, resulting in an increase in cost.

Similarly, when attaching a spoon package (not shown) to the packaging container 11, it is difficult to peel the spoon package from the packaging container 11, and
Since the width of the spoon package is wide and the amount of film used is large, the cost is high. The present invention solves the problems of the conventional rod-shaped body package,
It is an object of the present invention to provide a rod-shaped body package which can be easily peeled off from a packaging container, the amount of film used is small, and the cost can be reduced.

[0011]

Therefore, in the rod-shaped body package of the present invention, a first film having a flat portion and a bulge portion for accommodating the rod-shaped body, and the first film are provided.
And a second film that is heat sealed. Then, a joint is formed near both ends.

In another rod-shaped body package of the present invention, a perforation is formed on the center side of the joint portion and slightly on the end portion side of the boundary portion between the bulge portion and the flat portion. In still another rod-shaped body package of the present invention, the second film is attached to the packaging container at the joining portion by heating and melting.

In still another rod-shaped body package of the present invention, the second film is attached to the packaging container at the joint portion with an adhesive material.

[0014]

According to the present invention, as described above, in the rod-shaped package, the first film having the flat portion and the bulging portion for accommodating the rod-shaped body and the first film are provided. And a second film that is heat sealed. Then, a joint is formed near both ends.

In this case, the first and second films and the packaging container are not joined at the portions other than the joining portion. Therefore, since the portion other than the vicinity of both ends of the rod-shaped body package is separated from the packaging container, it becomes easy to insert a finger between the rod-shaped body package and the packaging container, and the rod-shaped body package is peeled from the packaging container. It will be that much easier.

Further, since the joint portions are formed near both ends of the rod-shaped package, the width of the flat portion at the side edge of the rod-shaped package can be narrowed. Therefore, the width of the rod-shaped package is narrowed, and the usage amounts of the first and second films are reduced, so that the cost can be reduced. In another rod-shaped body package of the present invention, a perforation is formed on the center side of the joint portion and slightly on the end side of the boundary portion between the bulge portion and the flat portion.

In this case, the perforation becomes a break line when the rod-shaped body package is peeled off from the packaging container. Therefore, the rod-shaped body package can be easily peeled off from the packaging container. In still another rod-shaped body package of the present invention, the second film is attached to the packaging container at the joining portion by heating and melting. In this case, the heater is pressed against the joint.

In yet another rod-shaped body package of the present invention, the second film is attached to the packaging container at the joint portion with an adhesive material. In this case, for example,
Hot melt is jetted into the packaging container, and the rod-shaped package is pressed against the packaging container through the hot melt.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings. In this case, although the straw package will be described as the rod-shaped body package, it can also be applied to the spoon package. 1 is a stuck state view of a straw package according to a first embodiment of the present invention, FIG. 5 is a vertical sectional view of a straw package according to a first embodiment of the present invention, and FIG. 6 is a first embodiment of the present invention. 3 is a cross-sectional view of the straw package in FIG.

As shown in the figure, a straw package 31 is attached to the side surface of the packaging container 11. In this case, the straw package 31 is positioned on the diagonal line of the side surface of the packaging container 11 so that the straw package 31 as long as possible can be attached to the limited area. The straw package 31 comprises a first film 14 and a second film 13 whose peripheral edges are heat-sealed to each other, and the first film 14 has a bulged portion 14 a and a flat portion 14.
b. Then, the first film 14 and the second film 13 are heat-sealed to form the bulging portion 14
The straw 56 can be sealed in a.

In this case, the first film 14 having a predetermined width is swollen at predetermined intervals to form a plurality of swollen portions 14a.
Are formed, and the straws 56 are accommodated in the respective bulging portions 14a, and then the second film 13 is covered with the first film 14. Therefore, a heat spreader (not shown) is formed by heat-sealing the first film 14 and the second film 13 in the flat portion 14b. Then, each straw package 31 of the Stroller is cut one by one, pressed against the packaging container 11, and bonded and adhered to the packaging container 11 by heating and melting.

Therefore, the straw package 31 is provided.
Joints 33 and 34 are formed on the flat portion 14b near both ends of the package. When a heater (not shown) is pressed against the joints 33 and 34, the resin forming the joints 33 and 34 coats the surface of the packaging container 11. It is designed to be fused to the resin. In this case, the second film 13 and the packaging container 11 are not joined at the portions other than the joining portions 33 and 34. Therefore, as shown in FIG. 5, the portion of the straw package 31 other than the vicinity of both ends is the packaging container 11.
The straw package 31 and the packaging container 1 are separated from each other.
It becomes easy to insert a finger between the straw package 31 and the container 1, and the straw package 31 can be peeled off from the packaging container 11 by that much.

Since the joint portions 33 and 34 are formed near both ends of the straw package 31, the width of the flat portion 14b at the side edge of the straw package 31 can be narrowed. Therefore, the width of the straw package 31 is also narrowed, and the first film 14 and the second film 13 are
Since the use amount of is reduced, the cost can be reduced.

By the way, perforations 36, 37 are formed in the straw package 31 at the center side of the joint portions 33, 34 and slightly at the end portion side of the boundary portion between the bulging portion 14a and the flat portion 14b. It is formed so as to cross the straw package 31. In this case, the perforations 36 and 37 are formed by heat-sealing the first film 14 and the second film 13 to each other at predetermined intervals using a needle-shaped heater (not shown). Further, the perforations 36 and 37 are the flat portion 1 in which the first film 14 and the second film 13 are heat-sealed to each other.
Since it is formed in 4b, the perforation 36, 37 does not deteriorate the sealing performance of the straw package 31.

At the peripheral edges of the perforations 36 and 37, the resin forming the first film 14 and the second film 13 receives the heat of the needle-shaped heater and is fused to each other. Therefore, even if the perforations 36 and 37 are formed at the boundary between the bulging portion 14a and the flat portion 14b, it is possible to maintain the sealing property of the straw package 31.

As described above, since the perforations 36 and 37 are formed closer to the center than the joining portions 33 and 34, the perforations 36 and 37 package the straw package 31 in the packaging container 11.
It becomes a break line when peeled from. Therefore, the straw package 31 can be easily peeled off from the packaging container 11. In addition, the bulging portion 14a and the flat portion 14b
Since the perforations 36 and 37 are formed at the boundary part with or at the end side slightly from the boundary part, after the straw package 31 is peeled from the packaging container 11, the perforation parts 36 and 37 are weakly pressed. The straw 56 can be easily taken out from the straw package 31.

The first film 14 and the second film 13 are manufactured by, for example, an inflation method or the like, and are made of a polyolefin resin such as polyethylene resin (PE), high density polyethylene resin (HDPE), low density polyethylene resin. (LDPE), polypropylene resin (PP), oriented polypropylene resin (OPP) and the like can be used. In this case, when the surface of the packaging container 11 is covered with a resin of the same type as the second film 13 or a resin having a high compatibility, the heat melting property between the second film 13 and the packaging container 11 is good. Is. Therefore, as described above, by pressing the heater against the joints 33 and 34, the polyolefin resin forming the joints 33 and 34 and the resin coated on the surface of the packaging container 11 are fused and the straws are formed. The package 31 can be attached to the packaging container 11. The stretched polypropylene resin is formed by extruding a polypropylene resin into a film and stretching it uniaxially or biaxially. In this case, the polypropylene resin becomes transparent because it is crystallized by being formed into a film.

It should be noted that a non-olefin resin may be used as the first film 14 and the second film 13 instead of the polyolefin resin. By the way, when polypropylene resin or the like is used as the first film 14 and the second film 13, if the surface of the packaging container 11 is covered with polyethylene resin or the like, the melting points of the both are largely different and the compatibility is low. Therefore, the heat melting property between the second film 13 and the packaging container 11 is deteriorated. In this case, even if the heater is pressed against the joint portions 33, 34 as described above,
The polypropylene resin or the like forming 34 is not fused with the polyethylene resin or the like coated on the surface of the packaging container 11.

Therefore, the first film 14 and the second film
When a non-olefin resin, polypropylene resin, or the like is used as the film 13 of FIG.
An adhesive material is interposed between the second film 13 in 34 and the polyethylene resin on the surface of the packaging container 11, and the straw package 31 is formed by the adhesive material.
The second and third embodiments of the present invention will be described.

FIG. 7 is a cross-sectional view of a straw package according to the second embodiment of the present invention. As shown in the figure, the straw package 31 is composed of the first film 14 and the second film 13, and has a straw 56 inside the bulging portion 14a.
To house. Then, an adhesive 61 as an adhesive material is applied between the second film 13 and the packaging container 11 or is sprayed by a hot melt gun (not shown).

As the adhesive 61, a hot melt based on ethylene vinyl acetate copolymer (EVA) can be used. In this case, the hot melt is jetted from the hot melt gun and sprayed on the side wall of the packaging container 11, and the straw package 31 is passed through the hot melt.
Is pressed and attached to the packaging container 11. By the way, when hot melt is used as the adhesive 61, a heating device (not shown) for maintaining the hot melt in a molten state is required, and not only the straw applicator (not shown) becomes large but also a large amount. It consumes energy. Furthermore, since the hot melt is constantly heated, it deteriorates, resulting in a decrease in adhesive strength and clogging of the nozzle of the hot melt gun.

When the hot melt is jetted from the hot melt gun, the hot melt is scattered,
The consumption of hot melt increases and the cost increases. Since the surface of the packaging container 11 cannot be uniformly applied, the straw package 31 may be peeled off from the packaging container 11. Further, when the packaging container 11 is stored in the vending machine, for example, 50
At a high temperature of [° C.] or higher, the hot melt is melted, and at a low temperature of 10 [° C.] or lower, the hot melt is solidified.
1 may peel off from the packaging container 11.

Therefore, a third embodiment will be described in which, instead of the adhesive 61, an adhesive film having a Vicat softening point and a melting point both higher than that of hot melt is used as an adhesive material. 8 is a rear view of the straw package in the third embodiment of the present invention, FIG. 9 is a rear view of the straw package in the third embodiment of the present invention, and FIG. 10 is an adhesive property in the third embodiment of the present invention. FIG. 11 is a diagram showing a film coating apparatus, and FIG. 11 is a characteristic diagram of an ethylene vinyl acetate copolymer in the third embodiment of the present invention. In FIG. 11, the horizontal axis represents the melting point and the vertical axis represents the Vicat softening point.

As shown in the figure, the straw package 31
Is composed of the first film 14 and the second film 13, and accommodates the straw 56 in the bulging portion 14a (FIG. 1). Then, the adhesive film 64 is previously coated on the second film 13 near both ends of the back surface of the straw package 31. In fact, the straw package 31 having the above structure is formed as a stroller 62 as shown in FIG.
The adhesive films 64 are coated on both side edges of the. Then, each straw package 3 of the stroller 62
1s are cut one by one, pressed against the packaging container 11, and attached to the packaging container 11 by heating and melting.

Therefore, the straw package 31 is used.
Near both ends on the first film 14 side of the joining portions 33, 34.
(FIG. 1), and a heater (not shown) is pressed against the joint portions 33 and 34. Therefore, the adhesive film 64 is melted by the heat of the heater, and the packaging container 1
1 is fused to the coated resin on the surface. In this case, as the adhesive film 64, an ethylene vinyl acetate copolymer having the characteristics of Vicat softening point and melting point both being higher than those of hot melt is used as a base resin. Therefore, even if the adhesive film 64 is coated on the second film 13, the adhesive film 64 does not become tacky at room temperature. Even if the stroller 62 is wound in a roll, the stroller 6
The two do not adhere to each other.

Since the ethylene-vinyl acetate copolymer is used only as the second film 13, the consumption of the ethylene-vinyl acetate copolymer can be reduced and the cost can be reduced. Moreover, since the straw package 31 can be reliably attached to the packaging container 11, it is possible to prevent the straw package 31 from coming off from the packaging container 11.

Further, when the packaging container 11 is stored in the vending machine, the straw package 31 is removed from the packaging container 11 even at a high temperature of 50 [° C.] or higher and at a low temperature of 10 [° C.] or lower. It does not come off. In addition, in this embodiment, since the second film 13 and the packaging container 11 can be attached to each other by the adhesive film 64, the first film 14 and the second film 13 are made of a polyolefin resin or a non-olefin resin. Any type of resin can be used.

The adhesive film 64 can be formed on the back surface of the stroller 62 after the stroller 62 is formed.
It can also be pre-coated. And the second
When the adhesive film 64 is previously coated on the film 13 of FIG. 10, as shown in FIG.
The adhesive film 64 is sandwiched between the pair of rollers 67 and 68, and the rollers 67 and 68 heat the adhesive film 64 so that the adhesive film 64 can be removed.
3 can be coated. The second film 1
3 is fed from the film roll 70, and the adhesive film 64 is fed from the adhesive film roll 69.

Next, the characteristics of the adhesive film 64 will be described. In this embodiment, the adhesive film 6
As the base resin, ethylene vinyl acetate copolymer was used as Table 4, and as the ethylene vinyl acetate copolymer,
The one having the characteristics shown in was used.

[0040]

[Table 1]

In the table, MFR is JIS K
Figure 7 shows the extrusion rate according to 7210 "Thermoplastic Flow Test Method". As the adhesive film 64, one having the characteristics shown in Table 2 was used.

[0042]

[Table 2]

When the melting points and the Vicat softening points of various ethylene vinyl acetate copolymers are plotted,
As shown in FIG. Here, the Vicat softening point is an index of heat resistance. When the ethylene-vinyl acetate copolymer is applied to hot melt, it is usually the area AR1 in the figure.
The one that fits in is used. That is, MFR is 10
Greater than [dg / min] and vinyl acetate content of 25
[Wt%] or more, melting point is 80 [° C] or less,
An ethylene-vinyl acetate copolymer having a Vicat softening point of 50 [° C.] or lower is used as a hot melt.

On the other hand, when the ethylene vinyl acetate copolymer is applied to the adhesive film 64 shown in this embodiment, it is necessary to use the one that fits in the area AR2 in the figure as described in Table 1. Most preferred. That is, MF
R is 0.5 to 10 [dg / min (= g / 10 [mi
n])], a vinyl acetate content of 10 [wt%] or less, a melting point of 90 to 105 [° C], and a Vicat softening point of 70 to 85 [° C]. Is used as the adhesive film 64.

It is also possible to use the adhesive film 64 that fits in the area AR3 in the figure. further,
In this embodiment, ethylene vinyl acetate copolymer is used as the base resin as the adhesive film 64. However, instead of the ethylene vinyl acetate copolymer, a polyolefin resin or a copolymer of polyolefin resin is used. It can also be used as a base resin.

Next, a fourth embodiment of the present invention will be described. FIG. 12 is a transverse sectional view of a straw package according to the fourth embodiment of the present invention. As shown in the figure, the straw package 31 is composed of a first film 14 and an adhesive film 71 as a second film.
The straw 56 is accommodated in a. Then, the adhesive film 71 covers the entire back surface of the straw package 31.

A plurality of the straw packages 31 are collectively manufactured as a stroller (not shown), cut one by one, pressed against the packaging container 11, and attached to the packaging container 11 by heating and melting. Therefore, joints 33 and 34 (FIG. 1) are formed in the flat portion 14b near both ends of the straw package 31, and when a heater (not shown) is pressed against the joints 33 and 34, the joints 33 and 34 are separated. The resin of the adhesive film 71 to be formed is fused with the resin coated on the surface of the packaging container 11.

It should be noted that the present invention is not limited to the above-described embodiments, but various modifications can be made based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

[Brief description of drawings]

FIG. 1 is an attachment state diagram of a straw package according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a conventional packaging container.

FIG. 3 is a perspective view of a conventional straw package.

FIG. 4 is an enlarged view of a heat-welded portion in a conventional straw applicator.

FIG. 5 is a vertical sectional view of a straw package according to the first embodiment of the present invention.

FIG. 6 is a cross-sectional view of the straw package according to the first embodiment of the present invention.

FIG. 7 is a transverse sectional view of a straw package according to a second embodiment of the present invention.

FIG. 8 is a rear view of the straw package according to the third embodiment of the present invention.

FIG. 9 is a rear view of the Stroller according to the third embodiment of the present invention.

FIG. 10 is a view showing an adhesive film coating device according to a third embodiment of the present invention.

FIG. 11 is a characteristic diagram of an ethylene-vinyl acetate copolymer in the third example of the present invention.

FIG. 12 is a transverse sectional view of a straw package according to a fourth embodiment of the present invention.

[Explanation of symbols]

 11 Packaging Container 13 Second Film 14 First Film 14a Swelling Part 14b Flat Part 31 Straw Package 33, 34 Joining Part 36, 37 Perforation 61 Adhesive 64, 71 Adhesive Film

Claims (4)

[Claims] 1. A first film having (a) a flat portion and a bulge portion for accommodating a rod-shaped body, and (b) the first film.
And a second film to be heat-sealed, and (c) a joint part is formed near both ends. 2. The rod-shaped body package according to claim 1, wherein a perforation is formed on the center side of the joint portion and slightly on the end portion side of the boundary portion between the bulge portion and the flat portion. 3. The rod-shaped body package according to claim 1, wherein the second film is attached to the packaging container at the joint portion by heating and melting. 4. The rod-shaped package according to claim 1, wherein the second film is attached to the packaging container at the joint portion with an adhesive material.