JPS641245Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to plastic bags, and an object of the present invention is to provide an easy-to-open plastic bag for packaging confectionery and cakes.

Many plastic bags are used to package sweets, cakes, etc., but they are difficult to open.
Particularly in the case of plate-shaped or stick-shaped sweets, leave the bag as it is when holding it with your fingers, and in order to eat the sweets one after another as you eat, push out the contents from the bottom of the bag or squeeze the contents from the opened part. You have to pinch it with your fingers and pull it out. However, in the former case, pushing out the contents is difficult, especially for young children.
Furthermore, in the latter case, the confectionery comes into direct contact with the hands, which is unfavorable from a sanitary standpoint.

By adopting the structure described in the claims for utility model registration, the present invention makes it possible to obtain a hygienic plastic bag that is easy to open, and allows necessary parts to be easily opened one after another as the confectionery is eaten. did it.

1 to 3 show an embodiment of the present invention, and the plastic sheet 1 used in the present invention is the underside of a stretched film 2 that is stretched only in the lateral direction when it is made into a bag. Barrier films 3 and 4 are sequentially laminated and formed, and a heat seal film 5 is further laminated on the lower side of the barrier film 4.

The stretched film 2 may be polyethylene (for example, Toyo Kagaku Co., Ltd., trade name: Colorian, etc.), polypropylene (for example, Toray Industries, Inc., trade name, YT11, etc.).
Various synthetic resin films such as , etc. can be used, and they may be either transparent or translucent.

In addition, barrier films include various types of cellophane, polyester, stretched nylon, PVA and PVDC-coated films thereof, PVDC, ethylene-vinyl acetate saponified products (stretched aluminum-deposited plastic film and aluminum foil if necessary). can be used. In addition, although the barrier film is illustrated as two layers 3 and 4 in FIG. 1, it is not limited to two layers.
Depending on the object to be used, it may be one layer or may have three or more layers.

Furthermore, various plastic films such as polyethylene, polypropylene, PVDC, and EVA are used as the heat seal film.

2 and 3 show a plastic bag manufactured using the plastic film 1 shown in FIG. The direction is perpendicular to the plastic film 1, that is, the lateral direction, and both end sides 6 and 6' of the plastic film 1 are overlapped,
Heat seal tape 7 from the back side of the overlapping part
are laminated across the overlapping end sides 6, 6' and sealed by heat bonding.

Therefore, since the edge of the overlapped outer edge 6 of the plastic film 1 formed as the bag is simply overlapped on the surface of the stretched film 2 of the other inner edge 6', it is not heated. They are stacked together in a free state without being glued together.

Next, to open the bag 8 according to the present invention, by strongly pulling the free outer edge 6 of the overlapped portion of the bag 8, the plastic film 1 forming the bag 8 is opened. is the stretched film 2
The heat-seal tape 7 is torn in a direction perpendicular to the axis of the bag 8, that is, in the lateral direction, according to the width d pinched with the fingers along the stretching direction, and is heat-sealed to the back side of the overlapping part. It can be easily opened by being separated from the bag.

In addition, when the bag 8 is opened and the exposed contents M are eaten, the outer edge 6 of the overlapping part of the bag 8 is
If the edges of the plastic film 1 are pinched with fingers and pulled strongly in the same manner as described above, the plastic film 1 will be torn again by the width of the pinched fingers, and the contents M can be partially exposed.
As the food progresses, the plastic film 1 may be sequentially torn as described above.

Therefore, unlike conventional plastic bags, there is no need to push out the contents from the bottom of the bag after unsealing the top of the bag, or to remove the contents from the top opening by pinching with your fingers, making the bag easy to open. It also has the advantage of being hygienic.

Moreover, since the plastic bag 8 according to the present invention has the barrier films 3 and 4 laminated,
Since the contents are completely shielded from moisture in the atmosphere, it is especially effective as a bag for confectionery and cakes that are sensitive to moisture.
Since they are laminated, it is easy to heat-bond them with the heat-seal tape 7, and the sealing performance can be maintained for a long period of time.

In addition, in the present invention, if heat sealing is not performed with heat sealable tape, both ends of the laminated film will be overlapped and heat sealed. The heat seal bar must be a film, and as a result, the heat seal bar and the surface of the laminated film that the heat seal bar directly comes into contact with will cause so-called tooth-shaped adhesion, which will deteriorate the suitability of the sealing machine. Therefore, in the present invention, the use of heat-sealable tape prevents the above-mentioned tooth profile adhesion, improves sealing mechanical suitability,
This is an essential component for improving packaging machine suitability, and it is inevitable.

As described above, the present invention can seal the contents with a laminated film of a stretched film, a barrier film, and a heat-sealed film, and can be opened easily by pulling the overlapping part with your fingers, so even children can open it. In addition, as the food progresses, the contents can be exposed slightly by pulling the overlapping parts one after another, so the part held with the fingers can grasp the contents from above the bag. Therefore, it is possible to make a plastic bag that is hygienic and easy to handle.

[Brief explanation of the drawing]

Fig. 1 is a schematic enlarged cross-sectional view of a sheet according to the present invention, Fig. 2 is a schematic cross-sectional view of an embodiment of the present invention, and Fig. 3 is a perspective view showing an unsealed state of an embodiment of the present invention. be. DESCRIPTION OF SYMBOLS 1... Plastic film, 2... Stretched film, 3, 4... Barrier film, 5... Heat seal film, 6, 6'... overlapped edge of bag, 7... Heat seal tape, 8... …bag.

Claims (1)

[Scope of utility model registration request] Both end sides of the laminated film, in which at least one layer includes a stretched film stretched only in the lateral direction when used as a bag, and whose inner surface is a heat-sealable film, are overlapped, and on the back side of the overlapped part, both end sides are The bag is heat-sealed with a heat-sealable tape across the layers, and the outer edges of the overlapped portions are left free without being bonded, and the stretching of the laminated film is A plastic bag, characterized in that the film is stretched in a direction perpendicular to the axis of the bag, that is, in a transverse direction.