JPH0718623Y2 - Package - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a packaging body, in particular, a film, which is formed into a tube body with an adhesive joint, and is sealed and cut at both ends after the tube body is filled with contents. The present invention relates to a package of the type in which the package is opened from the above-mentioned joint-sealed portion.

[Conventional technology]

As the packaging body of this type, a film having a property of being easily split in one direction by a stretching process is used, and the one direction is aligned with the width direction (circumferential direction of the packaging body) of the joint-sealed portion, It is known that the package can be easily cut open by pinching a part of the joint-bonded portion with a finger and pulling it in the width direction.

In such a type, in order to further facilitate the cut-opening from the gassho-bonded portion, two notches are formed at right angles to the side edges of the gassho-bonded portion, that is, in the width direction of the gassho-bonded portion, and a space between them is formed. What was used as the opening end piece is the actual opening Sho 63
-32163. According to this known packaging body, the opening start end piece is pinched with a finger and pulled in the width direction so that the film has a slit from a notch and the packaging body is torn open in a band shape.

[Problems to be solved by the device]

However, in the above-mentioned known packaging body, when the joint body bonding portion is torn in a band shape in the circumferential direction at the two cuts, the tops of the two cuts reach the boundary with the packaging part at the same time. Therefore, in the range between the two cuts, the resistance for separating the gassho-bonded portion from the packaging portion suddenly increases and it becomes difficult to open. Especially in the case of a thick film, this tendency is remarkable.

It is an object of the present invention to solve the above problems and provide a package that can be easily opened even with a thick film.

[Means for Solving the Problems]

According to the present invention, the above-mentioned object is a package packaged with a packaging material film having a film layer which is provided with a property of tearing in one direction by a stretching process, wherein the packaging body has a chisel adhesive portion, The palm-sealing adhesive portion extends in the width direction in the one direction and in the longitudinal direction perpendicular to the one direction, and at least one of the joint-sealing adhesive portion extends in the width direction from the side edge at a plurality of positions in the longitudinal direction at predetermined intervals. The pair of cuts are formed obliquely in the same direction with respect to the width direction.

[Action]

In the package of the present invention, when the package is opened, between the two notches provided at a plurality of positions of the seam-bonded portion, the two notches that are adjacent to each other are pinched with a finger and the width direction (the circumferential direction of the package). Pull to. Then, since the cut is formed obliquely to the width direction, a force is applied to the depth of the cut in the oblique direction, and a break is generated, and the beginning of the cut reaches the boundary between the gassho-bonded part and the packaging part. In doing so, a force having two components, that is, the width direction and the longitudinal direction of the joint-bonded portion, acts on the boundary. The force in the width direction acts to tear open the film of the packaging portion in the circumferential direction at the position of the cut, and the force in the longitudinal direction continuously separates the gastric adhesive portion from the packaging portion at the boundary. That is, at this boundary, the force for separating the joint-bonded portion from the packaging portion acts continuously, but its value becomes small, so that the force required for opening does not require a temporary large force unlike the conventional one.

〔Example〕

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, the packaging body 1 of the present embodiment is of a so-called gusset type having folds on the side portion 1A.
The film forming the package 1 has a characteristic that it is easily torn in one direction by a stretching process. The structure of the film is
The inner layer is formed as an adhesive layer, the outer layer is formed as a strength layer, and the intermediate layer is formed as a lateral cut layer. For example, polyolefin as the adhesive layer, polyethylene terephthalate as the outer layer, and unidirectionally stretched OPP as the transverse cut layer.
(Oriented polypropyne) or the like can be used.
Further, the intermediate layer, in addition to the horizontal cut layer, a barrier layer,
(For example, PVDC (polyvinylidene chloride resin) or EVOH
A layer containing (partially saponified ethylene vinyl acetate copolymer) may be included.

In the packaging body 1, the transverse cutting layer, which is the intermediate layer of the film, is stretched in the circumferential direction (X (+) in the figure).
The packaging is performed so that the (-) direction is set.

The packaging body 1 is formed into a tubular body by forming a gas-sealing adhesive portion 2 extending in the longitudinal direction (Y (+) (-) direction in the drawing) by adhering the adhesive layers of the film, and the film is formed into a tubular body. It is obtained by filling the contents with adhesive and cutting at the front and rear ends in the longitudinal direction. Further, the above-mentioned palm-bonding portion 2 is folded in one direction (X (-) direction in the figure) so as to come into contact with the packaging portion 3.

In the above-mentioned palm-bonding portion 2, diagonal cuts 4A and 4B having an angle θ with respect to the width direction (X (+) direction) are formed at a plurality of positions in the longitudinal direction (two positions in the illustrated example). There is. θ
About 30 ° is preferred. The notches 4A and 4B are not particularly limited in depth from the side edge 5 of the palm-sealed adhesive portion 2, but the packaging portion 3
It is preferably formed so as to reach the vicinity of the boundary 6 between and. The predetermined interval (distance in the Y direction) between the two cuts 4A, 4B is such that at least the space between the two cuts can be firmly pinched with a finger, and further the package is opened with a desired width along the width direction of the package. It can be set to be possible.

Next, a procedure for opening the package 1 of the embodiment will be described.

At the time of opening, hold the package 1 with one hand (for example, the left hand), and with the finger of the other hand (the right hand), pick up the part of the joint 2 which is close to 4A between the two cuts 4A and 4B, Pull in the direction to stand (X (+) direction in the figure). In that case, when the part is pulled with the right hand, the force usually has a moment about the cut 4B because the movement of the finger is accompanied by rotation. As a result, the cut
A tear is generated in the circumferential direction (X (+) direction) from 4A, and at the boundary 6 between the joint attachment 2 and the packaging portion 3, Y
A force acts in the (-) direction, and the palm-sealed adhesive portion 2 begins to be separated from the packaging portion 3 at the position of the cut 4A, and the separation gradually progresses toward the position of the cut 4B. Then, when this separation reaches the position of the cut 4B, a tear occurs in the circumferential direction (X (+) direction) of the packaging portion 3 at the cut 4B. Then, when the crevices at both the cuts 4A and 4B progress in the circumferential direction and make one round, the package 1 is opened.

Separation at the above boundary is made by cutting 4A and 4B like the conventional one.
Since it starts from the position of the incision 4A and ends at 4B without being simultaneously performed in the range between, the average small force with respect to time is sufficient for the separation, and the temporary large force is not required.

In this embodiment, two notches are formed near one end in the longitudinal direction (Y direction) of the package, but as shown in FIG. 2, the notches are provided at three places near both ends and in the center to open the package at any of the upper and lower positions. You may allow it. Further, as shown in FIGS. 3 and 4, two sets of notches having the same inclination may be provided at positions near both ends. The cut is not limited to a straight line, and may be any shape that can be cut diagonally.

[Advantages of the Invention] As described above, in the present invention, since the cuts in the joint-sealed portion are made oblique, the separation of the joint-sealed portion from the packaging portion is continuously performed with a certain time width. Temporary force is not needed, and the package can be opened very easily.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIGS. 2 to 4 are plan views showing modified examples of cuts in the joints of the palms. 1 …… Package 2 …… Gasmo joint 4A, 4B …… Notch

Claims (3)

[Scope of utility model registration request] 1. A packaging body packaged with a packaging material film having a film layer which is provided with a characteristic that it is easy to tear in one direction by a stretching process, wherein the packaging body has a joint palm adhesive portion, and the joint palm adhesive portion is One direction extends in the width direction and a direction perpendicular to the width direction extends in the longitudinal direction, and at least one pair of cuts extending in the width direction from the side edges at a plurality of positions in the longitudinal direction are formed in the joint-bonded portion at predetermined intervals. A packaging body, which is formed obliquely in the same direction with respect to the width direction. 2. The package according to claim 1, wherein the notch is formed by an inclined V-shaped groove. 3. The package according to claim 1, wherein the notches are formed in the vicinity of both end portions and in the central position in the longitudinal direction of the joint-bonded portion.